0d308c4111
QApplicationPrivate::translateTouchToMouse always sets buttons() to Qt::LeftButton for synthesised events. This is wrong for a mouse release, since 'button' should in that case be Qt::LeftButton, and 'buttons' should be Qt::NoButton (since no buttons are actually being pressed). This caused problems for QGraphicsView, which refuses to release any mouse grab set on a QGraphicsItem if at least one button is being pressed (which was always true). This resulted in broken drag behavior on touch platforms. Change-Id: Iefe63cd753f9f8bb04278fd04a4d728e3deda25e Reviewed-by: Samuel Rødal <samuel.rodal@digia.com> Reviewed-by: Tor Arne Vestbø <tor.arne.vestbo@digia.com> Reviewed-by: Frederik Gladhorn <frederik.gladhorn@digia.com> Reviewed-by: Shawn Rutledge <shawn.rutledge@digia.com>
4031 lines
140 KiB
C++
4031 lines
140 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
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** Contact: http://www.qt-project.org/legal
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**
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** This file is part of the QtWidgets module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Digia. For licensing terms and
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** conditions see http://qt.digia.com/licensing. For further information
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** use the contact form at http://qt.digia.com/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
|
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** In addition, as a special exception, Digia gives you certain additional
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** rights. These rights are described in the Digia Qt LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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|
** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
|
|
** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "qplatformdefs.h"
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#include "qabstracteventdispatcher.h"
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|
#include "qapplication.h"
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|
#include "qclipboard.h"
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|
#include "qcursor.h"
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|
#include "qdesktopwidget.h"
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|
#include "qdir.h"
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|
#include "qevent.h"
|
|
#include "qfile.h"
|
|
#include "qfileinfo.h"
|
|
#include "qgraphicsscene.h"
|
|
#include "qhash.h"
|
|
#include "qset.h"
|
|
#include "qlayout.h"
|
|
#include "qstyle.h"
|
|
#include "qstyleoption.h"
|
|
#include "qstylefactory.h"
|
|
#include "qtextcodec.h"
|
|
#include "qtranslator.h"
|
|
#include "qvariant.h"
|
|
#include "qwidget.h"
|
|
#include "private/qdnd_p.h"
|
|
#include "private/qguiapplication_p.h"
|
|
#include "qcolormap.h"
|
|
#include "qdebug.h"
|
|
#include "private/qstylesheetstyle_p.h"
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|
#include "private/qstyle_p.h"
|
|
#include "qmessagebox.h"
|
|
#include "qwidgetwindow_qpa_p.h"
|
|
#include <QtWidgets/qgraphicsproxywidget.h>
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|
#include <QtGui/qstylehints.h>
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|
#include <QtGui/qinputmethod.h>
|
|
#include <qpa/qplatformtheme.h>
|
|
#ifndef QT_NO_WHATSTHIS
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|
#include <QtWidgets/QWhatsThis>
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|
#endif
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|
|
|
#include "private/qkeymapper_p.h"
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|
|
|
#include <qthread.h>
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|
#include <private/qthread_p.h>
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|
|
|
#include <private/qfont_p.h>
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|
|
|
#include <stdlib.h>
|
|
|
|
#include "qapplication_p.h"
|
|
#include "private/qevent_p.h"
|
|
#include "qwidget_p.h"
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|
|
|
#include "qgesture.h"
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|
#include "private/qgesturemanager_p.h"
|
|
#include <qpa/qplatformfontdatabase.h>
|
|
#ifndef QT_NO_LIBRARY
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|
#include "qlibrary.h"
|
|
#endif
|
|
|
|
#include "qdatetime.h"
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|
|
|
#ifdef Q_OS_WINCE
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|
extern bool qt_wince_is_smartphone(); //qguifunctions_wince.cpp
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|
extern bool qt_wince_is_mobile(); //qguifunctions_wince.cpp
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|
extern bool qt_wince_is_pocket_pc(); //qguifunctions_wince.cpp
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#endif
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|
|
|
#include <qpa/qplatformwindow.h>
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|
|
|
//#define ALIEN_DEBUG
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|
|
|
static void initResources()
|
|
{
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|
#if defined(Q_OS_WINCE)
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|
Q_INIT_RESOURCE_EXTERN(qstyle_wince)
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|
Q_INIT_RESOURCE(qstyle_wince);
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|
#else
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|
Q_INIT_RESOURCE_EXTERN(qstyle)
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|
Q_INIT_RESOURCE(qstyle);
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|
#endif
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|
Q_INIT_RESOURCE_EXTERN(qmessagebox)
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|
Q_INIT_RESOURCE(qmessagebox);
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|
|
|
}
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QT_BEGIN_NAMESPACE
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Q_CORE_EXPORT void qt_call_post_routines();
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|
QApplicationPrivate *QApplicationPrivate::self = 0;
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|
|
|
static void initSystemPalette()
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|
{
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|
if (!QApplicationPrivate::sys_pal) {
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QPalette defaultPlatte;
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|
if (QApplicationPrivate::app_style)
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|
defaultPlatte = QApplicationPrivate::app_style->standardPalette();
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if (const QPalette *themePalette = QGuiApplicationPrivate::platformTheme()->palette()) {
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QApplicationPrivate::setSystemPalette(themePalette->resolve(defaultPlatte));
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QApplicationPrivate::initializeWidgetPaletteHash();
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|
} else {
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|
QApplicationPrivate::setSystemPalette(defaultPlatte);
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|
}
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|
}
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|
}
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|
|
|
static void clearSystemPalette()
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|
{
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delete QApplicationPrivate::sys_pal;
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QApplicationPrivate::sys_pal = 0;
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}
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|
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#ifdef Q_OS_WINCE
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int QApplicationPrivate::autoMaximizeThreshold = -1;
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bool QApplicationPrivate::autoSipEnabled = false;
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|
#else
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bool QApplicationPrivate::autoSipEnabled = true;
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|
#endif
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QApplicationPrivate::QApplicationPrivate(int &argc, char **argv, int flags)
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: QApplicationPrivateBase(argc, argv, flags)
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|
{
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application_type = QApplicationPrivate::Gui;
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|
|
#ifndef QT_NO_GESTURES
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|
gestureManager = 0;
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|
gestureWidget = 0;
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|
#endif // QT_NO_GESTURES
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|
|
|
if (!self)
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|
self = this;
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|
}
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|
|
QApplicationPrivate::~QApplicationPrivate()
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|
{
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|
if (self == this)
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|
self = 0;
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}
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|
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/*!
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|
\class QApplication
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|
\brief The QApplication class manages the GUI application's control
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flow and main settings.
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\inmodule QtWidgets
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QApplication specializes QGuiApplication with some functionality needed
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for QWidget-based applications. It handles widget specific initialization,
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finalization.
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|
|
For any GUI application using Qt, there is precisely \b one QApplication
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object, no matter whether the application has 0, 1, 2 or more windows at
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any given time. For non-QWidget based Qt applications, use QGuiApplication instead,
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as it does not depend on the \l QtWidgets library.
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|
|
Some GUI applications provide a special batch mode ie. provide command line
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arguments for executing tasks without manual intervention. In such non-GUI
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|
mode, it is often sufficient to instantiate a plain QCoreApplication to
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|
avoid unnecessarily initializing resources needed for a graphical user
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interface. The following example shows how to dynamically create an
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|
appropriate type of application instance:
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|
\snippet code/src_gui_kernel_qapplication.cpp 0
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|
The QApplication object is accessible through the instance() function that
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returns a pointer equivalent to the global qApp pointer.
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QApplication's main areas of responsibility are:
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\list
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\li It initializes the application with the user's desktop settings
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|
such as palette(), font() and doubleClickInterval(). It keeps
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|
track of these properties in case the user changes the desktop
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|
globally, for example through some kind of control panel.
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|
\li It performs event handling, meaning that it receives events
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|
from the underlying window system and dispatches them to the
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|
relevant widgets. By using sendEvent() and postEvent() you can
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|
send your own events to widgets.
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|
|
\li It parses common command line arguments and sets its internal
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|
state accordingly. See the \l{QApplication::QApplication()}
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{constructor documentation} below for more details.
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\li It defines the application's look and feel, which is
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encapsulated in a QStyle object. This can be changed at runtime
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with setStyle().
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\li It specifies how the application is to allocate colors. See
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setColorSpec() for details.
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\li It provides localization of strings that are visible to the
|
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user via translate().
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\li It provides some magical objects like the desktop() and the
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clipboard().
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\li It knows about the application's windows. You can ask which
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widget is at a certain position using widgetAt(), get a list of
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topLevelWidgets() and closeAllWindows(), etc.
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\li It manages the application's mouse cursor handling, see
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setOverrideCursor()
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\endlist
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Since the QApplication object does so much initialization, it \e{must} be
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created before any other objects related to the user interface are created.
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QApplication also deals with common command line arguments. Hence, it is
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usually a good idea to create it \e before any interpretation or
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modification of \c argv is done in the application itself.
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|
\table
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\header
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\li{2,1} Groups of functions
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|
|
\row
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\li System settings
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|
\li desktopSettingsAware(),
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|
setDesktopSettingsAware(),
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|
cursorFlashTime(),
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|
setCursorFlashTime(),
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|
doubleClickInterval(),
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|
setDoubleClickInterval(),
|
|
setKeyboardInputInterval(),
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|
wheelScrollLines(),
|
|
setWheelScrollLines(),
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|
palette(),
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setPalette(),
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font(),
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setFont(),
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fontMetrics().
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\row
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|
\li Event handling
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|
\li exec(),
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|
processEvents(),
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|
exit(),
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quit().
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sendEvent(),
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|
postEvent(),
|
|
sendPostedEvents(),
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|
removePostedEvents(),
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|
hasPendingEvents(),
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|
notify().
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|
|
\row
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|
\li GUI Styles
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|
\li style(),
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setStyle().
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|
\row
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|
\li Color usage
|
|
\li colorSpec(),
|
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setColorSpec().
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|
|
\row
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|
\li Text handling
|
|
\li installTranslator(),
|
|
removeTranslator()
|
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translate().
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|
|
\row
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|
\li Widgets
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|
\li allWidgets(),
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|
topLevelWidgets(),
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|
desktop(),
|
|
activePopupWidget(),
|
|
activeModalWidget(),
|
|
clipboard(),
|
|
focusWidget(),
|
|
activeWindow(),
|
|
widgetAt().
|
|
|
|
\row
|
|
\li Advanced cursor handling
|
|
\li overrideCursor(),
|
|
setOverrideCursor(),
|
|
restoreOverrideCursor().
|
|
|
|
\row
|
|
\li Miscellaneous
|
|
\li closeAllWindows(),
|
|
startingUp(),
|
|
closingDown(),
|
|
type().
|
|
\endtable
|
|
|
|
\sa QCoreApplication, QAbstractEventDispatcher, QEventLoop, QSettings
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|
*/
|
|
|
|
/*!
|
|
\enum QApplication::ColorSpec
|
|
|
|
\value NormalColor the default color allocation policy
|
|
\value CustomColor the same as NormalColor for X11; allocates colors
|
|
to a palette on demand under Windows
|
|
\value ManyColor the right choice for applications that use thousands of
|
|
colors
|
|
|
|
See setColorSpec() for full details.
|
|
*/
|
|
|
|
/*!
|
|
\fn QWidget *QApplication::topLevelAt(const QPoint &point)
|
|
|
|
Returns the top-level widget at the given \a point; returns 0 if
|
|
there is no such widget.
|
|
*/
|
|
|
|
/*!
|
|
\fn QWidget *QApplication::topLevelAt(int x, int y)
|
|
|
|
\overload
|
|
|
|
Returns the top-level widget at the point (\a{x}, \a{y}); returns
|
|
0 if there is no such widget.
|
|
*/
|
|
|
|
|
|
/*
|
|
The qt_init() and qt_cleanup() functions are implemented in the
|
|
qapplication_xyz.cpp file.
|
|
*/
|
|
|
|
void qt_init(QApplicationPrivate *priv, int type
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|
);
|
|
void qt_cleanup();
|
|
|
|
QStyle *QApplicationPrivate::app_style = 0; // default application style
|
|
QString QApplicationPrivate::styleOverride; // style override
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|
|
|
#ifndef QT_NO_STYLE_STYLESHEET
|
|
QString QApplicationPrivate::styleSheet; // default application stylesheet
|
|
#endif
|
|
QPointer<QWidget> QApplicationPrivate::leaveAfterRelease = 0;
|
|
|
|
int QApplicationPrivate::app_cspec = QApplication::NormalColor;
|
|
|
|
QPalette *QApplicationPrivate::sys_pal = 0; // default system palette
|
|
QPalette *QApplicationPrivate::set_pal = 0; // default palette set by programmer
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|
|
|
QFont *QApplicationPrivate::sys_font = 0; // default system font
|
|
QFont *QApplicationPrivate::set_font = 0; // default font set by programmer
|
|
|
|
QIcon *QApplicationPrivate::app_icon = 0;
|
|
QWidget *QApplicationPrivate::main_widget = 0; // main application widget
|
|
QWidget *QApplicationPrivate::focus_widget = 0; // has keyboard input focus
|
|
QWidget *QApplicationPrivate::hidden_focus_widget = 0; // will get keyboard input focus after show()
|
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QWidget *QApplicationPrivate::active_window = 0; // toplevel with keyboard focus
|
|
#ifndef QT_NO_WHEELEVENT
|
|
int QApplicationPrivate::wheel_scroll_lines; // number of lines to scroll
|
|
#endif
|
|
bool qt_in_tab_key_event = false;
|
|
int qt_antialiasing_threshold = -1;
|
|
QSize QApplicationPrivate::app_strut = QSize(0,0); // no default application strut
|
|
int QApplicationPrivate::enabledAnimations = QPlatformTheme::GeneralUiEffect;
|
|
bool QApplicationPrivate::widgetCount = false;
|
|
bool QApplicationPrivate::load_testability = false;
|
|
#ifdef QT_KEYPAD_NAVIGATION
|
|
Qt::NavigationMode QApplicationPrivate::navigationMode = Qt::NavigationModeKeypadTabOrder;
|
|
QWidget *QApplicationPrivate::oldEditFocus = 0;
|
|
#endif
|
|
|
|
bool qt_tabletChokeMouse = false;
|
|
|
|
inline bool QApplicationPrivate::isAlien(QWidget *widget)
|
|
{
|
|
return widget && !widget->isWindow();
|
|
}
|
|
|
|
bool Q_WIDGETS_EXPORT qt_tab_all_widgets()
|
|
{
|
|
if (const QPlatformTheme *theme = QGuiApplicationPrivate::platformTheme())
|
|
return theme->themeHint(QPlatformTheme::TabAllWidgets).toBool();
|
|
return true;
|
|
}
|
|
|
|
// ######## move to QApplicationPrivate
|
|
// Default application palettes and fonts (per widget type)
|
|
Q_GLOBAL_STATIC(PaletteHash, app_palettes)
|
|
PaletteHash *qt_app_palettes_hash()
|
|
{
|
|
return app_palettes();
|
|
}
|
|
|
|
Q_GLOBAL_STATIC(FontHash, app_fonts)
|
|
FontHash *qt_app_fonts_hash()
|
|
{
|
|
return app_fonts();
|
|
}
|
|
|
|
QWidgetList *QApplicationPrivate::popupWidgets = 0; // has keyboard input focus
|
|
|
|
QDesktopWidget *qt_desktopWidget = 0; // root window widgets
|
|
|
|
/*!
|
|
\internal
|
|
*/
|
|
void QApplicationPrivate::process_cmdline()
|
|
{
|
|
// process platform-indep command line
|
|
if (!qt_is_gui_used || !argc)
|
|
return;
|
|
|
|
int i, j;
|
|
|
|
j = 1;
|
|
for (i=1; i<argc; i++) { // if you add anything here, modify QCoreApplication::arguments()
|
|
if (argv[i] && *argv[i] != '-') {
|
|
argv[j++] = argv[i];
|
|
continue;
|
|
}
|
|
QByteArray arg = argv[i];
|
|
arg = arg;
|
|
QString s;
|
|
if (arg == "-qdevel" || arg == "-qdebug") {
|
|
// obsolete argument
|
|
} else if (arg.indexOf("-style=", 0) != -1) {
|
|
s = QString::fromLocal8Bit(arg.right(arg.length() - 7).toLower());
|
|
} else if (arg == "-style" && i < argc-1) {
|
|
s = QString::fromLocal8Bit(argv[++i]).toLower();
|
|
#ifndef QT_NO_STYLE_STYLESHEET
|
|
} else if (arg == "-stylesheet" && i < argc -1) {
|
|
styleSheet = QLatin1String("file:///");
|
|
styleSheet.append(QString::fromLocal8Bit(argv[++i]));
|
|
} else if (arg.indexOf("-stylesheet=") != -1) {
|
|
styleSheet = QLatin1String("file:///");
|
|
styleSheet.append(QString::fromLocal8Bit(arg.right(arg.length() - 12)));
|
|
#endif
|
|
} else if (qstrcmp(arg, "-widgetcount") == 0) {
|
|
widgetCount = true;
|
|
} else if (qstrcmp(arg, "-testability") == 0) {
|
|
load_testability = true;
|
|
} else {
|
|
argv[j++] = argv[i];
|
|
}
|
|
if (!s.isEmpty()) {
|
|
if (app_style) {
|
|
delete app_style;
|
|
app_style = 0;
|
|
}
|
|
styleOverride = s;
|
|
}
|
|
}
|
|
|
|
if(j < argc) {
|
|
argv[j] = 0;
|
|
argc = j;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
Initializes the window system and constructs an application object with
|
|
\a argc command line arguments in \a argv.
|
|
|
|
\warning The data referred to by \a argc and \a argv must stay valid for
|
|
the entire lifetime of the QApplication object. In addition, \a argc must
|
|
be greater than zero and \a argv must contain at least one valid character
|
|
string.
|
|
|
|
The global \c qApp pointer refers to this application object. Only one
|
|
application object should be created.
|
|
|
|
This application object must be constructed before any \l{QPaintDevice}
|
|
{paint devices} (including widgets, pixmaps, bitmaps etc.).
|
|
|
|
\note \a argc and \a argv might be changed as Qt removes command line
|
|
arguments that it recognizes.
|
|
|
|
All Qt programs automatically support the following command line options:
|
|
\list
|
|
\li -style= \e style, sets the application GUI style. Possible values
|
|
depend on your system configuration. If you compiled Qt with
|
|
additional styles or have additional styles as plugins these will
|
|
be available to the \c -style command line option. You can also
|
|
set the style for all Qt applications by setting the
|
|
\c QT_STYLE_OVERRIDE environment variable.
|
|
\li -style \e style, is the same as listed above.
|
|
\li -stylesheet= \e stylesheet, sets the application \l styleSheet. The
|
|
value must be a path to a file that contains the Style Sheet.
|
|
\note Relative URLs in the Style Sheet file are relative to the
|
|
Style Sheet file's path.
|
|
\li -stylesheet \e stylesheet, is the same as listed above.
|
|
\li -widgetcount, prints debug message at the end about number of
|
|
widgets left undestroyed and maximum number of widgets existed at
|
|
the same time
|
|
\li -reverse, sets the application's layout direction to
|
|
Qt::RightToLeft
|
|
\li -qmljsdebugger=, activates the QML/JS debugger with a specified port.
|
|
The value must be of format port:1234[,block], where block is optional
|
|
and will make the application wait until a debugger connects to it.
|
|
\endlist
|
|
|
|
\sa arguments()
|
|
*/
|
|
|
|
#ifdef Q_QDOC
|
|
QApplication::QApplication(int &argc, char **argv)
|
|
#else
|
|
QApplication::QApplication(int &argc, char **argv, int _internal)
|
|
#endif
|
|
: QGuiApplication(*new QApplicationPrivate(argc, argv, _internal))
|
|
{ Q_D(QApplication); d->construct(); }
|
|
|
|
/*!
|
|
\internal
|
|
*/
|
|
void QApplicationPrivate::construct()
|
|
{
|
|
initResources();
|
|
|
|
qt_is_gui_used = (application_type != QApplicationPrivate::Tty);
|
|
process_cmdline();
|
|
|
|
// Must be called before initialize()
|
|
qt_init(this, application_type);
|
|
initialize();
|
|
eventDispatcher->startingUp();
|
|
|
|
#ifdef QT_EVAL
|
|
extern void qt_gui_eval_init(uint);
|
|
qt_gui_eval_init(application_type);
|
|
#endif
|
|
|
|
#ifndef QT_NO_LIBRARY
|
|
if(load_testability) {
|
|
QLibrary testLib(QLatin1String("qttestability"));
|
|
if (testLib.load()) {
|
|
typedef void (*TasInitialize)(void);
|
|
TasInitialize initFunction = (TasInitialize)testLib.resolve("qt_testability_init");
|
|
if (initFunction) {
|
|
initFunction();
|
|
} else {
|
|
qCritical("Library qttestability resolve failed!");
|
|
}
|
|
} else {
|
|
qCritical("Library qttestability load failed!");
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
#ifndef QT_NO_STATEMACHINE
|
|
void qRegisterGuiStateMachine();
|
|
void qUnregisterGuiStateMachine();
|
|
#endif
|
|
extern void qRegisterWidgetsVariant();
|
|
|
|
/*!
|
|
\fn void QApplicationPrivate::initialize()
|
|
|
|
Initializes the QApplication object, called from the constructors.
|
|
*/
|
|
void QApplicationPrivate::initialize()
|
|
{
|
|
is_app_running = false; // Starting up.
|
|
|
|
QWidgetPrivate::mapper = new QWidgetMapper;
|
|
QWidgetPrivate::allWidgets = new QWidgetSet;
|
|
|
|
// needed for a static build.
|
|
qRegisterWidgetsVariant();
|
|
|
|
if (application_type != QApplicationPrivate::Tty)
|
|
(void) QApplication::style(); // trigger creation of application style
|
|
#ifndef QT_NO_STATEMACHINE
|
|
// trigger registering of QStateMachine's GUI types
|
|
qRegisterGuiStateMachine();
|
|
#endif
|
|
|
|
if (qgetenv("QT_USE_NATIVE_WINDOWS").toInt() > 0)
|
|
QCoreApplication::setAttribute(Qt::AA_NativeWindows);
|
|
|
|
#ifdef Q_OS_WINCE
|
|
#ifdef QT_AUTO_MAXIMIZE_THRESHOLD
|
|
autoMaximizeThreshold = QT_AUTO_MAXIMIZE_THRESHOLD;
|
|
#else
|
|
if (qt_wince_is_mobile())
|
|
autoMaximizeThreshold = 50;
|
|
else
|
|
autoMaximizeThreshold = -1;
|
|
#endif //QT_AUTO_MAXIMIZE_THRESHOLD
|
|
#endif //Q_OS_WINCE
|
|
|
|
#ifndef QT_NO_WHEELEVENT
|
|
QApplicationPrivate::wheel_scroll_lines = 3;
|
|
#endif
|
|
|
|
if (qt_is_gui_used)
|
|
initializeMultitouch();
|
|
|
|
if (QApplication::desktopSettingsAware())
|
|
if (const QPlatformTheme *theme = QGuiApplicationPrivate::platformTheme())
|
|
QApplicationPrivate::enabledAnimations = theme->themeHint(QPlatformTheme::UiEffects).toInt();
|
|
|
|
is_app_running = true; // no longer starting up
|
|
}
|
|
|
|
/*****************************************************************************
|
|
Functions returning the active popup and modal widgets.
|
|
*****************************************************************************/
|
|
|
|
/*!
|
|
Returns the active popup widget.
|
|
|
|
A popup widget is a special top-level widget that sets the \c
|
|
Qt::WType_Popup widget flag, e.g. the QMenu widget. When the application
|
|
opens a popup widget, all events are sent to the popup. Normal widgets and
|
|
modal widgets cannot be accessed before the popup widget is closed.
|
|
|
|
Only other popup widgets may be opened when a popup widget is shown. The
|
|
popup widgets are organized in a stack. This function returns the active
|
|
popup widget at the top of the stack.
|
|
|
|
\sa activeModalWidget(), topLevelWidgets()
|
|
*/
|
|
|
|
QWidget *QApplication::activePopupWidget()
|
|
{
|
|
return QApplicationPrivate::popupWidgets && !QApplicationPrivate::popupWidgets->isEmpty() ?
|
|
QApplicationPrivate::popupWidgets->last() : 0;
|
|
}
|
|
|
|
|
|
/*!
|
|
Returns the active modal widget.
|
|
|
|
A modal widget is a special top-level widget which is a subclass of QDialog
|
|
that specifies the modal parameter of the constructor as true. A modal
|
|
widget must be closed before the user can continue with other parts of the
|
|
program.
|
|
|
|
Modal widgets are organized in a stack. This function returns the active
|
|
modal widget at the top of the stack.
|
|
|
|
\sa activePopupWidget(), topLevelWidgets()
|
|
*/
|
|
|
|
QWidget *QApplication::activeModalWidget()
|
|
{
|
|
QWidgetWindow *widgetWindow = qobject_cast<QWidgetWindow *>(modalWindow());
|
|
return widgetWindow ? widgetWindow->widget() : 0;
|
|
}
|
|
|
|
/*!
|
|
Cleans up any window system resources that were allocated by this
|
|
application. Sets the global variable \c qApp to 0.
|
|
*/
|
|
|
|
QApplication::~QApplication()
|
|
{
|
|
Q_D(QApplication);
|
|
|
|
//### this should probable be done even later
|
|
qt_call_post_routines();
|
|
|
|
// kill timers before closing down the dispatcher
|
|
d->toolTipWakeUp.stop();
|
|
d->toolTipFallAsleep.stop();
|
|
|
|
QApplicationPrivate::is_app_closing = true;
|
|
QApplicationPrivate::is_app_running = false;
|
|
|
|
delete QWidgetPrivate::mapper;
|
|
QWidgetPrivate::mapper = 0;
|
|
|
|
// delete all widgets
|
|
if (QWidgetPrivate::allWidgets) {
|
|
QWidgetSet *mySet = QWidgetPrivate::allWidgets;
|
|
QWidgetPrivate::allWidgets = 0;
|
|
for (QWidgetSet::ConstIterator it = mySet->constBegin(); it != mySet->constEnd(); ++it) {
|
|
register QWidget *w = *it;
|
|
if (!w->parent()) // window
|
|
w->destroy(true, true);
|
|
}
|
|
delete mySet;
|
|
}
|
|
|
|
delete qt_desktopWidget;
|
|
qt_desktopWidget = 0;
|
|
|
|
delete QApplicationPrivate::app_pal;
|
|
QApplicationPrivate::app_pal = 0;
|
|
clearSystemPalette();
|
|
delete QApplicationPrivate::set_pal;
|
|
QApplicationPrivate::set_pal = 0;
|
|
app_palettes()->clear();
|
|
|
|
delete QApplicationPrivate::sys_font;
|
|
QApplicationPrivate::sys_font = 0;
|
|
delete QApplicationPrivate::set_font;
|
|
QApplicationPrivate::set_font = 0;
|
|
app_fonts()->clear();
|
|
|
|
delete QApplicationPrivate::app_style;
|
|
QApplicationPrivate::app_style = 0;
|
|
delete QApplicationPrivate::app_icon;
|
|
QApplicationPrivate::app_icon = 0;
|
|
|
|
#ifndef QT_NO_DRAGANDDROP
|
|
if (qt_is_gui_used)
|
|
delete QDragManager::self();
|
|
#endif
|
|
|
|
d->cleanupMultitouch();
|
|
|
|
qt_cleanup();
|
|
|
|
if (QApplicationPrivate::widgetCount)
|
|
qDebug("Widgets left: %i Max widgets: %i \n", QWidgetPrivate::instanceCounter, QWidgetPrivate::maxInstances);
|
|
|
|
QApplicationPrivate::obey_desktop_settings = true;
|
|
|
|
QApplicationPrivate::app_strut = QSize(0, 0);
|
|
QApplicationPrivate::enabledAnimations = QPlatformTheme::GeneralUiEffect;
|
|
QApplicationPrivate::widgetCount = false;
|
|
|
|
#ifndef QT_NO_STATEMACHINE
|
|
// trigger unregistering of QStateMachine's GUI types
|
|
qUnregisterGuiStateMachine();
|
|
#endif
|
|
}
|
|
|
|
|
|
/*!
|
|
\fn QWidget *QApplication::widgetAt(const QPoint &point)
|
|
|
|
Returns the widget at global screen position \a point, or 0 if there is no
|
|
Qt widget there.
|
|
|
|
This function can be slow.
|
|
|
|
\sa QCursor::pos(), QWidget::grabMouse(), QWidget::grabKeyboard()
|
|
*/
|
|
QWidget *QApplication::widgetAt(const QPoint &p)
|
|
{
|
|
QWidget *window = QApplication::topLevelAt(p);
|
|
if (!window)
|
|
return 0;
|
|
|
|
QWidget *child = 0;
|
|
|
|
if (!window->testAttribute(Qt::WA_TransparentForMouseEvents))
|
|
child = window->childAt(window->mapFromGlobal(p));
|
|
|
|
if (child)
|
|
return child;
|
|
|
|
if (window->testAttribute(Qt::WA_TransparentForMouseEvents)) {
|
|
//shoot a hole in the widget and try once again,
|
|
//suboptimal on Qt for Embedded Linux where we do
|
|
//know the stacking order of the toplevels.
|
|
int x = p.x();
|
|
int y = p.y();
|
|
QRegion oldmask = window->mask();
|
|
QPoint wpoint = window->mapFromGlobal(QPoint(x, y));
|
|
QRegion newmask = (oldmask.isEmpty() ? QRegion(window->rect()) : oldmask)
|
|
- QRegion(wpoint.x(), wpoint.y(), 1, 1);
|
|
window->setMask(newmask);
|
|
QWidget *recurse = 0;
|
|
if (QApplication::topLevelAt(p) != window) // verify recursion will terminate
|
|
recurse = widgetAt(x, y);
|
|
if (oldmask.isEmpty())
|
|
window->clearMask();
|
|
else
|
|
window->setMask(oldmask);
|
|
return recurse;
|
|
}
|
|
return window;
|
|
}
|
|
|
|
/*!
|
|
\fn QWidget *QApplication::widgetAt(int x, int y)
|
|
|
|
\overload
|
|
|
|
Returns the widget at global screen position (\a x, \a y), or 0 if there is
|
|
no Qt widget there.
|
|
*/
|
|
|
|
/*!
|
|
\internal
|
|
*/
|
|
bool QApplication::compressEvent(QEvent *event, QObject *receiver, QPostEventList *postedEvents)
|
|
{
|
|
if ((event->type() == QEvent::UpdateRequest
|
|
|| event->type() == QEvent::LayoutRequest
|
|
|| event->type() == QEvent::Resize
|
|
|| event->type() == QEvent::Move
|
|
|| event->type() == QEvent::LanguageChange
|
|
|| event->type() == QEvent::InputMethod)) {
|
|
for (QPostEventList::const_iterator it = postedEvents->constBegin(); it != postedEvents->constEnd(); ++it) {
|
|
const QPostEvent &cur = *it;
|
|
if (cur.receiver != receiver || cur.event == 0 || cur.event->type() != event->type())
|
|
continue;
|
|
if (cur.event->type() == QEvent::LayoutRequest
|
|
|| cur.event->type() == QEvent::UpdateRequest) {
|
|
;
|
|
} else if (cur.event->type() == QEvent::Resize) {
|
|
((QResizeEvent *)(cur.event))->s = ((QResizeEvent *)event)->s;
|
|
} else if (cur.event->type() == QEvent::Move) {
|
|
((QMoveEvent *)(cur.event))->p = ((QMoveEvent *)event)->p;
|
|
} else if (cur.event->type() == QEvent::LanguageChange) {
|
|
;
|
|
} else if ( cur.event->type() == QEvent::InputMethod ) {
|
|
*(QInputMethodEvent *)(cur.event) = *(QInputMethodEvent *)event;
|
|
} else {
|
|
continue;
|
|
}
|
|
delete event;
|
|
return true;
|
|
}
|
|
return false;
|
|
}
|
|
return QGuiApplication::compressEvent(event, receiver, postedEvents);
|
|
}
|
|
|
|
/*!
|
|
\property QApplication::styleSheet
|
|
\brief the application style sheet
|
|
\since 4.2
|
|
|
|
By default, this property returns an empty string unless the user specifies
|
|
the \c{-stylesheet} option on the command line when running the application.
|
|
|
|
\sa QWidget::setStyle(), {Qt Style Sheets}
|
|
*/
|
|
|
|
/*!
|
|
\property QApplication::autoMaximizeThreshold
|
|
\since 4.4
|
|
\brief defines a threshold for auto maximizing widgets
|
|
|
|
\b{The auto maximize threshold is only available as part of Qt for
|
|
Windows CE.}
|
|
|
|
This property defines a threshold for the size of a window as a percentage
|
|
of the screen size. If the minimum size hint of a window exceeds the
|
|
threshold, calling show() will cause the window to be maximized
|
|
automatically.
|
|
|
|
Setting the threshold to 100 or greater means that the widget will always
|
|
be maximized. Alternatively, setting the threshold to 50 means that the
|
|
widget will be maximized only if the vertical minimum size hint is at least
|
|
50% of the vertical screen size.
|
|
|
|
Setting the threshold to -1 disables the feature.
|
|
|
|
On Windows CE the default is -1 (i.e., it is disabled).
|
|
On Windows Mobile the default is 40.
|
|
*/
|
|
|
|
/*!
|
|
\property QApplication::autoSipEnabled
|
|
\since 4.5
|
|
\brief toggles automatic SIP (software input panel) visibility
|
|
|
|
Set this property to \c true to automatically display the SIP when entering
|
|
widgets that accept keyboard input. This property only affects widgets with
|
|
the WA_InputMethodEnabled attribute set, and is typically used to launch
|
|
a virtual keyboard on devices which have very few or no keys.
|
|
|
|
\b{ The property only has an effect on platforms which use software input
|
|
panels, such as Windows CE.}
|
|
|
|
The default is platform dependent.
|
|
*/
|
|
|
|
#ifdef Q_OS_WINCE
|
|
void QApplication::setAutoMaximizeThreshold(const int threshold)
|
|
{
|
|
QApplicationPrivate::autoMaximizeThreshold = threshold;
|
|
}
|
|
|
|
int QApplication::autoMaximizeThreshold() const
|
|
{
|
|
return QApplicationPrivate::autoMaximizeThreshold;
|
|
}
|
|
#endif
|
|
|
|
void QApplication::setAutoSipEnabled(const bool enabled)
|
|
{
|
|
QApplicationPrivate::autoSipEnabled = enabled;
|
|
}
|
|
|
|
bool QApplication::autoSipEnabled() const
|
|
{
|
|
return QApplicationPrivate::autoSipEnabled;
|
|
}
|
|
|
|
#ifndef QT_NO_STYLE_STYLESHEET
|
|
|
|
QString QApplication::styleSheet() const
|
|
{
|
|
return QApplicationPrivate::styleSheet;
|
|
}
|
|
|
|
void QApplication::setStyleSheet(const QString& styleSheet)
|
|
{
|
|
QApplicationPrivate::styleSheet = styleSheet;
|
|
QStyleSheetStyle *proxy = qobject_cast<QStyleSheetStyle*>(QApplicationPrivate::app_style);
|
|
if (styleSheet.isEmpty()) { // application style sheet removed
|
|
if (!proxy)
|
|
return; // there was no stylesheet before
|
|
setStyle(proxy->base);
|
|
} else if (proxy) { // style sheet update, just repolish
|
|
proxy->repolish(qApp);
|
|
} else { // stylesheet set the first time
|
|
QStyleSheetStyle *newProxy = new QStyleSheetStyle(QApplicationPrivate::app_style);
|
|
QApplicationPrivate::app_style->setParent(newProxy);
|
|
setStyle(newProxy);
|
|
}
|
|
}
|
|
|
|
#endif // QT_NO_STYLE_STYLESHEET
|
|
|
|
/*!
|
|
Returns the application's style object.
|
|
|
|
\sa setStyle(), QStyle
|
|
*/
|
|
QStyle *QApplication::style()
|
|
{
|
|
if (QApplicationPrivate::app_style)
|
|
return QApplicationPrivate::app_style;
|
|
if (!qobject_cast<QApplication *>(QCoreApplication::instance())) {
|
|
Q_ASSERT(!"No style available without QApplication!");
|
|
return 0;
|
|
}
|
|
|
|
if (!QApplicationPrivate::app_style) {
|
|
// Compile-time search for default style
|
|
//
|
|
QString style;
|
|
QString envStyle = QString::fromLocal8Bit(qgetenv("QT_STYLE_OVERRIDE"));
|
|
if (!QApplicationPrivate::styleOverride.isEmpty()) {
|
|
style = QApplicationPrivate::styleOverride;
|
|
} else if (!envStyle.isEmpty()) {
|
|
style = envStyle;
|
|
} else {
|
|
style = QApplicationPrivate::desktopStyleKey();
|
|
}
|
|
|
|
QStyle *&app_style = QApplicationPrivate::app_style;
|
|
app_style = QStyleFactory::create(style);
|
|
if (!app_style) {
|
|
QStringList styles = QStyleFactory::keys();
|
|
for (int i = 0; i < styles.size(); ++i) {
|
|
if ((app_style = QStyleFactory::create(styles.at(i))))
|
|
break;
|
|
}
|
|
}
|
|
if (!app_style) {
|
|
Q_ASSERT(!"No styles available!");
|
|
return 0;
|
|
}
|
|
}
|
|
// take ownership of the style
|
|
QApplicationPrivate::app_style->setParent(qApp);
|
|
|
|
initSystemPalette();
|
|
|
|
if (QApplicationPrivate::set_pal) // repolish set palette with the new style
|
|
QApplication::setPalette(*QApplicationPrivate::set_pal);
|
|
|
|
#ifndef QT_NO_STYLE_STYLESHEET
|
|
if (!QApplicationPrivate::styleSheet.isEmpty()) {
|
|
qApp->setStyleSheet(QApplicationPrivate::styleSheet);
|
|
} else
|
|
#endif
|
|
QApplicationPrivate::app_style->polish(qApp);
|
|
|
|
return QApplicationPrivate::app_style;
|
|
}
|
|
|
|
/*!
|
|
Sets the application's GUI style to \a style. Ownership of the style object
|
|
is transferred to QApplication, so QApplication will delete the style
|
|
object on application exit or when a new style is set and the old style is
|
|
still the parent of the application object.
|
|
|
|
Example usage:
|
|
\snippet code/src_gui_kernel_qapplication.cpp 1
|
|
|
|
When switching application styles, the color palette is set back to the
|
|
initial colors or the system defaults. This is necessary since certain
|
|
styles have to adapt the color palette to be fully style-guide compliant.
|
|
|
|
Setting the style before a palette has been set, i.e., before creating
|
|
QApplication, will cause the application to use QStyle::standardPalette()
|
|
for the palette.
|
|
|
|
\warning Qt style sheets are currently not supported for custom QStyle
|
|
subclasses. We plan to address this in some future release.
|
|
|
|
\sa style(), QStyle, setPalette(), desktopSettingsAware()
|
|
*/
|
|
void QApplication::setStyle(QStyle *style)
|
|
{
|
|
if (!style || style == QApplicationPrivate::app_style)
|
|
return;
|
|
|
|
QWidgetList all = allWidgets();
|
|
|
|
// clean up the old style
|
|
if (QApplicationPrivate::app_style) {
|
|
if (QApplicationPrivate::is_app_running && !QApplicationPrivate::is_app_closing) {
|
|
for (QWidgetList::ConstIterator it = all.constBegin(); it != all.constEnd(); ++it) {
|
|
register QWidget *w = *it;
|
|
if (!(w->windowType() == Qt::Desktop) && // except desktop
|
|
w->testAttribute(Qt::WA_WState_Polished)) { // has been polished
|
|
QApplicationPrivate::app_style->unpolish(w);
|
|
}
|
|
}
|
|
}
|
|
QApplicationPrivate::app_style->unpolish(qApp);
|
|
}
|
|
|
|
QStyle *old = QApplicationPrivate::app_style; // save
|
|
|
|
#ifndef QT_NO_STYLE_STYLESHEET
|
|
if (!QApplicationPrivate::styleSheet.isEmpty() && !qobject_cast<QStyleSheetStyle *>(style)) {
|
|
// we have a stylesheet already and a new style is being set
|
|
QStyleSheetStyle *newProxy = new QStyleSheetStyle(style);
|
|
style->setParent(newProxy);
|
|
QApplicationPrivate::app_style = newProxy;
|
|
} else
|
|
#endif // QT_NO_STYLE_STYLESHEET
|
|
QApplicationPrivate::app_style = style;
|
|
QApplicationPrivate::app_style->setParent(qApp); // take ownership
|
|
|
|
// take care of possible palette requirements of certain gui
|
|
// styles. Do it before polishing the application since the style
|
|
// might call QApplication::setPalette() itself
|
|
if (QApplicationPrivate::set_pal) {
|
|
QApplication::setPalette(*QApplicationPrivate::set_pal);
|
|
} else if (QApplicationPrivate::sys_pal) {
|
|
QApplicationPrivate::initializeWidgetPaletteHash();
|
|
QApplicationPrivate::setPalette_helper(*QApplicationPrivate::sys_pal, /*className=*/0, /*clearWidgetPaletteHash=*/false);
|
|
} else if (!QApplicationPrivate::sys_pal) {
|
|
// Initialize the sys_pal if it hasn't happened yet...
|
|
QApplicationPrivate::setSystemPalette(QApplicationPrivate::app_style->standardPalette());
|
|
}
|
|
|
|
// initialize the application with the new style
|
|
QApplicationPrivate::app_style->polish(qApp);
|
|
|
|
// re-polish existing widgets if necessary
|
|
if (QApplicationPrivate::is_app_running && !QApplicationPrivate::is_app_closing) {
|
|
for (QWidgetList::ConstIterator it1 = all.constBegin(); it1 != all.constEnd(); ++it1) {
|
|
register QWidget *w = *it1;
|
|
if (w->windowType() != Qt::Desktop && w->testAttribute(Qt::WA_WState_Polished)) {
|
|
if (w->style() == QApplicationPrivate::app_style)
|
|
QApplicationPrivate::app_style->polish(w); // repolish
|
|
#ifndef QT_NO_STYLE_STYLESHEET
|
|
else
|
|
w->setStyleSheet(w->styleSheet()); // touch
|
|
#endif
|
|
}
|
|
}
|
|
|
|
for (QWidgetList::ConstIterator it2 = all.constBegin(); it2 != all.constEnd(); ++it2) {
|
|
register QWidget *w = *it2;
|
|
if (w->windowType() != Qt::Desktop && !w->testAttribute(Qt::WA_SetStyle)) {
|
|
QEvent e(QEvent::StyleChange);
|
|
QApplication::sendEvent(w, &e);
|
|
w->update();
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifndef QT_NO_STYLE_STYLESHEET
|
|
if (QStyleSheetStyle *oldProxy = qobject_cast<QStyleSheetStyle *>(old)) {
|
|
oldProxy->deref();
|
|
} else
|
|
#endif
|
|
if (old && old->parent() == qApp) {
|
|
delete old;
|
|
}
|
|
|
|
if (QApplicationPrivate::focus_widget) {
|
|
QFocusEvent in(QEvent::FocusIn, Qt::OtherFocusReason);
|
|
QApplication::sendEvent(QApplicationPrivate::focus_widget->style(), &in);
|
|
QApplicationPrivate::focus_widget->update();
|
|
}
|
|
}
|
|
|
|
/*!
|
|
\overload
|
|
|
|
Requests a QStyle object for \a style from the QStyleFactory.
|
|
|
|
The string must be one of the QStyleFactory::keys(), typically one of
|
|
"windows", "fusion", "windowsxp", or "macintosh". Style
|
|
names are case insensitive.
|
|
|
|
Returns 0 if an unknown \a style is passed, otherwise the QStyle object
|
|
returned is set as the application's GUI style.
|
|
|
|
\warning To ensure that the application's style is set correctly, it is
|
|
best to call this function before the QApplication constructor, if
|
|
possible.
|
|
*/
|
|
QStyle* QApplication::setStyle(const QString& style)
|
|
{
|
|
QStyle *s = QStyleFactory::create(style);
|
|
if (!s)
|
|
return 0;
|
|
|
|
setStyle(s);
|
|
return s;
|
|
}
|
|
|
|
/*!
|
|
Returns the color specification.
|
|
|
|
\sa QApplication::setColorSpec()
|
|
*/
|
|
|
|
int QApplication::colorSpec()
|
|
{
|
|
return QApplicationPrivate::app_cspec;
|
|
}
|
|
|
|
/*!
|
|
Sets the color specification for the application to \a spec.
|
|
|
|
The color specification controls how the application allocates colors when
|
|
run on a display with a limited amount of colors, e.g. 8 bit / 256 color
|
|
displays.
|
|
|
|
The color specification must be set before you create the QApplication
|
|
object.
|
|
|
|
The options are:
|
|
\list
|
|
\li QApplication::NormalColor. This is the default color allocation
|
|
strategy. Use this option if your application uses buttons, menus,
|
|
texts and pixmaps with few colors. With this option, the
|
|
application uses system global colors. This works fine for most
|
|
applications under X11, but on the Windows platform, it may cause
|
|
dithering of non-standard colors.
|
|
\li QApplication::CustomColor. Use this option if your application
|
|
needs a small number of custom colors. On X11, this option is the
|
|
same as NormalColor. On Windows, Qt creates a Windows palette, and
|
|
allocates colors to it on demand.
|
|
\li QApplication::ManyColor. Use this option if your application is
|
|
very color hungry, e.g., it requires thousands of colors. \br
|
|
Under X11 the effect is:
|
|
\list
|
|
\li For 256-color displays which have at best a 256 color true
|
|
color visual, the default visual is used, and colors are
|
|
allocated from a color cube. The color cube is the 6x6x6
|
|
(216 color) "Web palette" (the red, green, and blue
|
|
components always have one of the following values: 0x00,
|
|
0x33, 0x66, 0x99, 0xCC, or 0xFF), but the number of colors
|
|
can be changed by the \e -ncols option. The user can force
|
|
the application to use the true color visual with the
|
|
\l{QApplication::QApplication()}{-visual} option.
|
|
\li For 256-color displays which have a true color visual with
|
|
more than 256 colors, use that visual. Silicon Graphics X
|
|
servers this feature, for example. They provide an 8 bit
|
|
visual by default but can deliver true color when asked.
|
|
\endlist
|
|
On Windows, Qt creates a Windows palette, and fills it with a color
|
|
cube.
|
|
\endlist
|
|
|
|
Be aware that the CustomColor and ManyColor choices may lead to colormap
|
|
flashing: The foreground application gets (most) of the available colors,
|
|
while the background windows will look less attractive.
|
|
|
|
Example:
|
|
|
|
\snippet code/src_gui_kernel_qapplication.cpp 2
|
|
|
|
\sa colorSpec()
|
|
*/
|
|
|
|
void QApplication::setColorSpec(int spec)
|
|
{
|
|
if (qApp)
|
|
qWarning("QApplication::setColorSpec: This function must be "
|
|
"called before the QApplication object is created");
|
|
QApplicationPrivate::app_cspec = spec;
|
|
}
|
|
|
|
/*!
|
|
\property QApplication::globalStrut
|
|
\brief the minimum size that any GUI element that the user can interact
|
|
with should have
|
|
|
|
For example, no button should be resized to be smaller than the global
|
|
strut size. The strut size should be considered when reimplementing GUI
|
|
controls that may be used on touch-screens or similar I/O devices.
|
|
|
|
Example:
|
|
|
|
\snippet code/src_gui_kernel_qapplication.cpp 3
|
|
|
|
By default, this property contains a QSize object with zero width and height.
|
|
*/
|
|
QSize QApplication::globalStrut()
|
|
{
|
|
return QApplicationPrivate::app_strut;
|
|
}
|
|
|
|
void QApplication::setGlobalStrut(const QSize& strut)
|
|
{
|
|
QApplicationPrivate::app_strut = strut;
|
|
}
|
|
|
|
|
|
/*!
|
|
\fn QPalette QApplication::palette(const QWidget* widget)
|
|
\overload
|
|
|
|
If a \a widget is passed, the default palette for the widget's class is
|
|
returned. This may or may not be the application palette. In most cases
|
|
there is no special palette for certain types of widgets, but one notable
|
|
exception is the popup menu under Windows, if the user has defined a
|
|
special background color for menus in the display settings.
|
|
|
|
\sa setPalette(), QWidget::palette()
|
|
*/
|
|
QPalette QApplication::palette(const QWidget* w)
|
|
{
|
|
PaletteHash *hash = app_palettes();
|
|
if (w && hash && hash->size()) {
|
|
QHash<QByteArray, QPalette>::ConstIterator it = hash->constFind(w->metaObject()->className());
|
|
if (it != hash->constEnd())
|
|
return *it;
|
|
for (it = hash->constBegin(); it != hash->constEnd(); ++it) {
|
|
if (w->inherits(it.key()))
|
|
return it.value();
|
|
}
|
|
}
|
|
return palette();
|
|
}
|
|
|
|
/*!
|
|
\overload
|
|
|
|
Returns the palette for widgets of the given \a className.
|
|
|
|
\sa setPalette(), QWidget::palette()
|
|
*/
|
|
QPalette QApplication::palette(const char *className)
|
|
{
|
|
if (!QApplicationPrivate::app_pal)
|
|
palette();
|
|
PaletteHash *hash = app_palettes();
|
|
if (className && hash && hash->size()) {
|
|
QHash<QByteArray, QPalette>::ConstIterator it = hash->constFind(className);
|
|
if (it != hash->constEnd())
|
|
return *it;
|
|
}
|
|
return *QApplicationPrivate::app_pal;
|
|
}
|
|
|
|
void QApplicationPrivate::setPalette_helper(const QPalette &palette, const char* className, bool clearWidgetPaletteHash)
|
|
{
|
|
QPalette pal = palette;
|
|
|
|
if (QApplicationPrivate::app_style)
|
|
QApplicationPrivate::app_style->polish(pal); // NB: non-const reference
|
|
|
|
bool all = false;
|
|
PaletteHash *hash = app_palettes();
|
|
if (!className) {
|
|
if (QApplicationPrivate::app_pal && pal.isCopyOf(*QApplicationPrivate::app_pal))
|
|
return;
|
|
if (!QApplicationPrivate::app_pal)
|
|
QApplicationPrivate::app_pal = new QPalette(pal);
|
|
else
|
|
*QApplicationPrivate::app_pal = pal;
|
|
if (hash && hash->size()) {
|
|
all = true;
|
|
if (clearWidgetPaletteHash)
|
|
hash->clear();
|
|
}
|
|
} else if (hash) {
|
|
hash->insert(className, pal);
|
|
}
|
|
|
|
if (QApplicationPrivate::is_app_running && !QApplicationPrivate::is_app_closing) {
|
|
// Send ApplicationPaletteChange to qApp itself, and to the widgets.
|
|
QEvent e(QEvent::ApplicationPaletteChange);
|
|
QApplication::sendEvent(QApplication::instance(), &e);
|
|
|
|
QWidgetList wids = QApplication::allWidgets();
|
|
for (QWidgetList::ConstIterator it = wids.constBegin(); it != wids.constEnd(); ++it) {
|
|
register QWidget *w = *it;
|
|
if (all || (!className && w->isWindow()) || w->inherits(className)) // matching class
|
|
QApplication::sendEvent(w, &e);
|
|
}
|
|
|
|
// Send to all scenes as well.
|
|
#ifndef QT_NO_GRAPHICSVIEW
|
|
QList<QGraphicsScene *> &scenes = qApp->d_func()->scene_list;
|
|
for (QList<QGraphicsScene *>::ConstIterator it = scenes.constBegin();
|
|
it != scenes.constEnd(); ++it) {
|
|
QApplication::sendEvent(*it, &e);
|
|
}
|
|
#endif //QT_NO_GRAPHICSVIEW
|
|
}
|
|
if (!className && (!QApplicationPrivate::sys_pal || !palette.isCopyOf(*QApplicationPrivate::sys_pal))) {
|
|
if (!QApplicationPrivate::set_pal)
|
|
QApplicationPrivate::set_pal = new QPalette(palette);
|
|
else
|
|
*QApplicationPrivate::set_pal = palette;
|
|
}
|
|
}
|
|
|
|
/*!
|
|
Changes the default application palette to \a palette.
|
|
|
|
If \a className is passed, the change applies only to widgets that inherit
|
|
\a className (as reported by QObject::inherits()). If \a className is left
|
|
0, the change affects all widgets, thus overriding any previously set class
|
|
specific palettes.
|
|
|
|
The palette may be changed according to the current GUI style in
|
|
QStyle::polish().
|
|
|
|
\warning Do not use this function in conjunction with \l{Qt Style Sheets}.
|
|
When using style sheets, the palette of a widget can be customized using
|
|
the "color", "background-color", "selection-color",
|
|
"selection-background-color" and "alternate-background-color".
|
|
|
|
\note Some styles do not use the palette for all drawing, for instance, if
|
|
they make use of native theme engines. This is the case for the Windows XP,
|
|
Windows Vista, and Mac OS X styles.
|
|
|
|
\sa QWidget::setPalette(), palette(), QStyle::polish()
|
|
*/
|
|
|
|
void QApplication::setPalette(const QPalette &palette, const char* className)
|
|
{
|
|
QApplicationPrivate::setPalette_helper(palette, className, /*clearWidgetPaletteHash=*/ true);
|
|
}
|
|
|
|
|
|
|
|
void QApplicationPrivate::setSystemPalette(const QPalette &pal)
|
|
{
|
|
QPalette adjusted;
|
|
|
|
#if 0
|
|
// adjust the system palette to avoid dithering
|
|
QColormap cmap = QColormap::instance();
|
|
if (cmap.depths() > 4 && cmap.depths() < 24) {
|
|
for (int g = 0; g < QPalette::NColorGroups; g++)
|
|
for (int i = 0; i < QPalette::NColorRoles; i++) {
|
|
QColor color = pal.color((QPalette::ColorGroup)g, (QPalette::ColorRole)i);
|
|
color = cmap.colorAt(cmap.pixel(color));
|
|
adjusted.setColor((QPalette::ColorGroup)g, (QPalette::ColorRole) i, color);
|
|
}
|
|
}
|
|
#else
|
|
adjusted = pal;
|
|
#endif
|
|
|
|
if (!sys_pal)
|
|
sys_pal = new QPalette(adjusted);
|
|
else
|
|
*sys_pal = adjusted;
|
|
|
|
|
|
if (!QApplicationPrivate::set_pal)
|
|
QApplication::setPalette(*sys_pal);
|
|
}
|
|
|
|
/*!
|
|
Returns the default application font.
|
|
|
|
\sa fontMetrics(), QWidget::font()
|
|
*/
|
|
QFont QApplication::font()
|
|
{
|
|
return QGuiApplication::font();
|
|
}
|
|
|
|
/*!
|
|
\overload
|
|
|
|
Returns the default font for the \a widget.
|
|
|
|
\sa fontMetrics(), QWidget::setFont()
|
|
*/
|
|
|
|
QFont QApplication::font(const QWidget *widget)
|
|
{
|
|
FontHash *hash = app_fonts();
|
|
|
|
if (widget && hash && hash->size()) {
|
|
#ifdef Q_OS_MAC
|
|
// short circuit for small and mini controls
|
|
if (widget->testAttribute(Qt::WA_MacSmallSize)) {
|
|
return hash->value(QByteArrayLiteral("QSmallFont"));
|
|
} else if (widget->testAttribute(Qt::WA_MacMiniSize)) {
|
|
return hash->value(QByteArrayLiteral("QMiniFont"));
|
|
}
|
|
#endif
|
|
QHash<QByteArray, QFont>::ConstIterator it =
|
|
hash->constFind(widget->metaObject()->className());
|
|
if (it != hash->constEnd())
|
|
return it.value();
|
|
for (it = hash->constBegin(); it != hash->constEnd(); ++it) {
|
|
if (widget->inherits(it.key()))
|
|
return it.value();
|
|
}
|
|
}
|
|
return font();
|
|
}
|
|
|
|
/*!
|
|
\overload
|
|
|
|
Returns the font for widgets of the given \a className.
|
|
|
|
\sa setFont(), QWidget::font()
|
|
*/
|
|
QFont QApplication::font(const char *className)
|
|
{
|
|
FontHash *hash = app_fonts();
|
|
if (className && hash && hash->size()) {
|
|
QHash<QByteArray, QFont>::ConstIterator it = hash->constFind(className);
|
|
if (it != hash->constEnd())
|
|
return *it;
|
|
}
|
|
return font();
|
|
}
|
|
|
|
|
|
/*!
|
|
Changes the default application font to \a font. If \a className is passed,
|
|
the change applies only to classes that inherit \a className (as reported
|
|
by QObject::inherits()).
|
|
|
|
On application start-up, the default font depends on the window system. It
|
|
can vary depending on both the window system version and the locale. This
|
|
function lets you override the default font; but overriding may be a bad
|
|
idea because, for example, some locales need extra large fonts to support
|
|
their special characters.
|
|
|
|
\warning Do not use this function in conjunction with \l{Qt Style Sheets}.
|
|
The font of an application can be customized using the "font" style sheet
|
|
property. To set a bold font for all QPushButtons, set the application
|
|
styleSheet() as "QPushButton { font: bold }"
|
|
|
|
\sa font(), fontMetrics(), QWidget::setFont()
|
|
*/
|
|
|
|
void QApplication::setFont(const QFont &font, const char *className)
|
|
{
|
|
bool all = false;
|
|
FontHash *hash = app_fonts();
|
|
if (!className) {
|
|
QGuiApplication::setFont(font);
|
|
if (hash && hash->size()) {
|
|
all = true;
|
|
hash->clear();
|
|
}
|
|
} else if (hash) {
|
|
hash->insert(className, font);
|
|
}
|
|
if (QApplicationPrivate::is_app_running && !QApplicationPrivate::is_app_closing) {
|
|
// Send ApplicationFontChange to qApp itself, and to the widgets.
|
|
QEvent e(QEvent::ApplicationFontChange);
|
|
QApplication::sendEvent(QApplication::instance(), &e);
|
|
|
|
QWidgetList wids = QApplication::allWidgets();
|
|
for (QWidgetList::ConstIterator it = wids.constBegin(); it != wids.constEnd(); ++it) {
|
|
register QWidget *w = *it;
|
|
if (all || (!className && w->isWindow()) || w->inherits(className)) // matching class
|
|
sendEvent(w, &e);
|
|
}
|
|
|
|
#ifndef QT_NO_GRAPHICSVIEW
|
|
// Send to all scenes as well.
|
|
QList<QGraphicsScene *> &scenes = qApp->d_func()->scene_list;
|
|
for (QList<QGraphicsScene *>::ConstIterator it = scenes.constBegin();
|
|
it != scenes.constEnd(); ++it) {
|
|
QApplication::sendEvent(*it, &e);
|
|
}
|
|
#endif //QT_NO_GRAPHICSVIEW
|
|
}
|
|
if (!className && (!QApplicationPrivate::sys_font || !font.isCopyOf(*QApplicationPrivate::sys_font))) {
|
|
if (!QApplicationPrivate::set_font)
|
|
QApplicationPrivate::set_font = new QFont(font);
|
|
else
|
|
*QApplicationPrivate::set_font = font;
|
|
}
|
|
}
|
|
|
|
/*! \internal
|
|
*/
|
|
void QApplicationPrivate::setSystemFont(const QFont &font)
|
|
{
|
|
if (!sys_font)
|
|
sys_font = new QFont(font);
|
|
else
|
|
*sys_font = font;
|
|
|
|
if (!QApplicationPrivate::set_font)
|
|
QApplication::setFont(*sys_font);
|
|
}
|
|
|
|
/*! \internal
|
|
*/
|
|
QString QApplicationPrivate::desktopStyleKey()
|
|
{
|
|
// The platform theme might return a style that is not available, find
|
|
// first valid one.
|
|
if (const QPlatformTheme *theme = QGuiApplicationPrivate::platformTheme()) {
|
|
const QStringList availableKeys = QStyleFactory::keys();
|
|
foreach (const QString &style, theme->themeHint(QPlatformTheme::StyleNames).toStringList())
|
|
if (availableKeys.contains(style, Qt::CaseInsensitive))
|
|
return style;
|
|
}
|
|
return QString();
|
|
}
|
|
|
|
/*!
|
|
\property QApplication::windowIcon
|
|
\brief the default window icon
|
|
|
|
\sa QWidget::setWindowIcon(), {Setting the Application Icon}
|
|
*/
|
|
QIcon QApplication::windowIcon()
|
|
{
|
|
return QApplicationPrivate::app_icon ? *QApplicationPrivate::app_icon : QIcon();
|
|
}
|
|
|
|
void QApplication::setWindowIcon(const QIcon &icon)
|
|
{
|
|
if (!QApplicationPrivate::app_icon)
|
|
QApplicationPrivate::app_icon = new QIcon();
|
|
*QApplicationPrivate::app_icon = icon;
|
|
if (QApplicationPrivate::is_app_running && !QApplicationPrivate::is_app_closing) {
|
|
QEvent e(QEvent::ApplicationWindowIconChange);
|
|
QWidgetList all = QApplication::allWidgets();
|
|
for (QWidgetList::ConstIterator it = all.constBegin(); it != all.constEnd(); ++it) {
|
|
register QWidget *w = *it;
|
|
if (w->isWindow())
|
|
sendEvent(w, &e);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*!
|
|
Returns a list of the top-level widgets (windows) in the application.
|
|
|
|
\note Some of the top-level widgets may be hidden, for example a tooltip if
|
|
no tooltip is currently shown.
|
|
|
|
Example:
|
|
|
|
\snippet code/src_gui_kernel_qapplication.cpp 4
|
|
|
|
\sa allWidgets(), QWidget::isWindow(), QWidget::isHidden()
|
|
*/
|
|
QWidgetList QApplication::topLevelWidgets()
|
|
{
|
|
QWidgetList list;
|
|
QWidgetList all = allWidgets();
|
|
|
|
for (QWidgetList::ConstIterator it = all.constBegin(); it != all.constEnd(); ++it) {
|
|
QWidget *w = *it;
|
|
if (w->isWindow() && w->windowType() != Qt::Desktop)
|
|
list.append(w);
|
|
}
|
|
return list;
|
|
}
|
|
|
|
/*!
|
|
Returns a list of all the widgets in the application.
|
|
|
|
The list is empty (QList::isEmpty()) if there are no widgets.
|
|
|
|
\note Some of the widgets may be hidden.
|
|
|
|
Example:
|
|
\snippet code/src_gui_kernel_qapplication.cpp 5
|
|
|
|
\sa topLevelWidgets(), QWidget::isVisible()
|
|
*/
|
|
|
|
QWidgetList QApplication::allWidgets()
|
|
{
|
|
if (QWidgetPrivate::allWidgets)
|
|
return QWidgetPrivate::allWidgets->toList();
|
|
return QWidgetList();
|
|
}
|
|
|
|
/*!
|
|
Returns the application widget that has the keyboard input focus, or 0 if
|
|
no widget in this application has the focus.
|
|
|
|
\sa QWidget::setFocus(), QWidget::hasFocus(), activeWindow(), focusChanged()
|
|
*/
|
|
|
|
QWidget *QApplication::focusWidget()
|
|
{
|
|
return QApplicationPrivate::focus_widget;
|
|
}
|
|
|
|
void QApplicationPrivate::setFocusWidget(QWidget *focus, Qt::FocusReason reason)
|
|
{
|
|
#ifndef QT_NO_GRAPHICSVIEW
|
|
if (focus && focus->window()->graphicsProxyWidget())
|
|
return;
|
|
#endif
|
|
|
|
hidden_focus_widget = 0;
|
|
|
|
if (focus != focus_widget) {
|
|
if (focus && focus->isHidden()) {
|
|
hidden_focus_widget = focus;
|
|
return;
|
|
}
|
|
|
|
if (focus && (reason == Qt::BacktabFocusReason || reason == Qt::TabFocusReason)
|
|
&& qt_in_tab_key_event)
|
|
focus->window()->setAttribute(Qt::WA_KeyboardFocusChange);
|
|
else if (focus && reason == Qt::ShortcutFocusReason) {
|
|
focus->window()->setAttribute(Qt::WA_KeyboardFocusChange);
|
|
}
|
|
QWidget *prev = focus_widget;
|
|
focus_widget = focus;
|
|
|
|
if(focus_widget)
|
|
focus_widget->d_func()->setFocus_sys();
|
|
|
|
if (reason != Qt::NoFocusReason) {
|
|
|
|
//send events
|
|
if (prev) {
|
|
#ifdef QT_KEYPAD_NAVIGATION
|
|
if (QApplication::keypadNavigationEnabled()) {
|
|
if (prev->hasEditFocus() && reason != Qt::PopupFocusReason)
|
|
prev->setEditFocus(false);
|
|
}
|
|
#endif
|
|
QFocusEvent out(QEvent::FocusOut, reason);
|
|
QPointer<QWidget> that = prev;
|
|
QApplication::sendEvent(prev, &out);
|
|
if (that)
|
|
QApplication::sendEvent(that->style(), &out);
|
|
}
|
|
if(focus && QApplicationPrivate::focus_widget == focus) {
|
|
QFocusEvent in(QEvent::FocusIn, reason);
|
|
QPointer<QWidget> that = focus;
|
|
QApplication::sendEvent(focus, &in);
|
|
if (that)
|
|
QApplication::sendEvent(that->style(), &in);
|
|
}
|
|
emit qApp->focusChanged(prev, focus_widget);
|
|
}
|
|
}
|
|
}
|
|
|
|
|
|
/*!
|
|
Returns the application top-level window that has the keyboard input focus,
|
|
or 0 if no application window has the focus. There might be an
|
|
activeWindow() even if there is no focusWidget(), for example if no widget
|
|
in that window accepts key events.
|
|
|
|
\sa QWidget::setFocus(), QWidget::hasFocus(), focusWidget()
|
|
*/
|
|
|
|
QWidget *QApplication::activeWindow()
|
|
{
|
|
return QApplicationPrivate::active_window;
|
|
}
|
|
|
|
/*!
|
|
Returns display (screen) font metrics for the application font.
|
|
|
|
\sa font(), setFont(), QWidget::fontMetrics(), QPainter::fontMetrics()
|
|
*/
|
|
|
|
QFontMetrics QApplication::fontMetrics()
|
|
{
|
|
return desktop()->fontMetrics();
|
|
}
|
|
|
|
|
|
/*!
|
|
Closes all top-level windows.
|
|
|
|
This function is particularly useful for applications with many top-level
|
|
windows. It could, for example, be connected to a \uicontrol{Exit} entry in the
|
|
\uicontrol{File} menu:
|
|
|
|
\snippet mainwindows/mdi/mainwindow.cpp 0
|
|
|
|
The windows are closed in random order, until one window does not accept
|
|
the close event. The application quits when the last window was
|
|
successfully closed; this can be turned off by setting
|
|
\l quitOnLastWindowClosed to false.
|
|
|
|
\sa quitOnLastWindowClosed, lastWindowClosed(), QWidget::close(),
|
|
QWidget::closeEvent(), lastWindowClosed(), quit(), topLevelWidgets(),
|
|
QWidget::isWindow()
|
|
*/
|
|
void QApplication::closeAllWindows()
|
|
{
|
|
bool did_close = true;
|
|
QWidget *w;
|
|
while ((w = activeModalWidget()) && did_close) {
|
|
if (!w->isVisible() || w->data->is_closing)
|
|
break;
|
|
did_close = w->close();
|
|
}
|
|
QWidgetList list = QApplication::topLevelWidgets();
|
|
for (int i = 0; did_close && i < list.size(); ++i) {
|
|
w = list.at(i);
|
|
if (w->isVisible()
|
|
&& w->windowType() != Qt::Desktop
|
|
&& !w->data->is_closing) {
|
|
did_close = w->close();
|
|
list = QApplication::topLevelWidgets();
|
|
i = -1;
|
|
}
|
|
}
|
|
}
|
|
|
|
/*!
|
|
Displays a simple message box about Qt. The message includes the version
|
|
number of Qt being used by the application.
|
|
|
|
This is useful for inclusion in the \uicontrol Help menu of an application, as
|
|
shown in the \l{mainwindows/menus}{Menus} example.
|
|
|
|
This function is a convenience slot for QMessageBox::aboutQt().
|
|
*/
|
|
void QApplication::aboutQt()
|
|
{
|
|
#ifndef QT_NO_MESSAGEBOX
|
|
QMessageBox::aboutQt(activeWindow());
|
|
#endif // QT_NO_MESSAGEBOX
|
|
}
|
|
|
|
/*!
|
|
\since 4.1
|
|
\fn void QApplication::focusChanged(QWidget *old, QWidget *now)
|
|
|
|
This signal is emitted when the widget that has keyboard focus changed from
|
|
\a old to \a now, i.e., because the user pressed the tab-key, clicked into
|
|
a widget or changed the active window. Both \a old and \a now can be the
|
|
null-pointer.
|
|
|
|
The signal is emitted after both widget have been notified about the change
|
|
through QFocusEvent.
|
|
|
|
\sa QWidget::setFocus(), QWidget::clearFocus(), Qt::FocusReason
|
|
*/
|
|
|
|
/*!\reimp
|
|
|
|
*/
|
|
bool QApplication::event(QEvent *e)
|
|
{
|
|
Q_D(QApplication);
|
|
if(e->type() == QEvent::Close) {
|
|
QCloseEvent *ce = static_cast<QCloseEvent*>(e);
|
|
ce->accept();
|
|
closeAllWindows();
|
|
|
|
QWidgetList list = topLevelWidgets();
|
|
for (int i = 0; i < list.size(); ++i) {
|
|
QWidget *w = list.at(i);
|
|
if (w->isVisible() && !(w->windowType() == Qt::Desktop) && !(w->windowType() == Qt::Popup) &&
|
|
(!(w->windowType() == Qt::Dialog) || !w->parentWidget())) {
|
|
ce->ignore();
|
|
break;
|
|
}
|
|
}
|
|
if (ce->isAccepted()) {
|
|
return true;
|
|
}
|
|
#ifndef Q_OS_WIN
|
|
} else if (e->type() == QEvent::LocaleChange) {
|
|
// on Windows the event propagation is taken care by the
|
|
// WM_SETTINGCHANGE event handler.
|
|
QWidgetList list = topLevelWidgets();
|
|
for (int i = 0; i < list.size(); ++i) {
|
|
QWidget *w = list.at(i);
|
|
if (!(w->windowType() == Qt::Desktop)) {
|
|
if (!w->testAttribute(Qt::WA_SetLocale))
|
|
w->d_func()->setLocale_helper(QLocale(), true);
|
|
}
|
|
}
|
|
#endif
|
|
} else if (e->type() == QEvent::Timer) {
|
|
QTimerEvent *te = static_cast<QTimerEvent*>(e);
|
|
Q_ASSERT(te != 0);
|
|
if (te->timerId() == d->toolTipWakeUp.timerId()) {
|
|
d->toolTipWakeUp.stop();
|
|
if (d->toolTipWidget) {
|
|
QWidget *w = d->toolTipWidget->window();
|
|
// show tooltip if WA_AlwaysShowToolTips is set, or if
|
|
// any ancestor of d->toolTipWidget is the active
|
|
// window
|
|
bool showToolTip = w->testAttribute(Qt::WA_AlwaysShowToolTips);
|
|
while (w && !showToolTip) {
|
|
showToolTip = w->isActiveWindow();
|
|
w = w->parentWidget();
|
|
w = w ? w->window() : 0;
|
|
}
|
|
if (showToolTip) {
|
|
QHelpEvent e(QEvent::ToolTip, d->toolTipPos, d->toolTipGlobalPos);
|
|
QApplication::sendEvent(d->toolTipWidget, &e);
|
|
if (e.isAccepted())
|
|
d->toolTipFallAsleep.start(2000, this);
|
|
}
|
|
}
|
|
} else if (te->timerId() == d->toolTipFallAsleep.timerId()) {
|
|
d->toolTipFallAsleep.stop();
|
|
}
|
|
#ifndef QT_NO_WHATSTHIS
|
|
} else if (e->type() == QEvent::EnterWhatsThisMode) {
|
|
QWhatsThis::enterWhatsThisMode();
|
|
return true;
|
|
#endif
|
|
}
|
|
|
|
if(e->type() == QEvent::LanguageChange) {
|
|
QWidgetList list = topLevelWidgets();
|
|
for (int i = 0; i < list.size(); ++i) {
|
|
QWidget *w = list.at(i);
|
|
if (!(w->windowType() == Qt::Desktop))
|
|
postEvent(w, new QEvent(QEvent::LanguageChange));
|
|
}
|
|
}
|
|
|
|
return QGuiApplication::event(e);
|
|
}
|
|
|
|
/*!
|
|
\fn void QApplication::syncX()
|
|
Was used to synchronize with the X server in 4.x, here for source compatibility.
|
|
\internal
|
|
\obsolete
|
|
*/
|
|
|
|
void QApplicationPrivate::notifyLayoutDirectionChange()
|
|
{
|
|
QWidgetList list = QApplication::topLevelWidgets();
|
|
for (int i = 0; i < list.size(); ++i) {
|
|
QWidget *w = list.at(i);
|
|
QEvent ev(QEvent::ApplicationLayoutDirectionChange);
|
|
QCoreApplication::sendEvent(w, &ev);
|
|
}
|
|
}
|
|
|
|
/*!
|
|
\fn void QApplication::setActiveWindow(QWidget* active)
|
|
|
|
Sets the active window to the \a active widget in response to a system
|
|
event. The function is called from the platform specific event handlers.
|
|
|
|
\warning This function does \e not set the keyboard focus to the active
|
|
widget. Call QWidget::activateWindow() instead.
|
|
|
|
It sets the activeWindow() and focusWidget() attributes and sends proper
|
|
\l{QEvent::WindowActivate}{WindowActivate}/\l{QEvent::WindowDeactivate}
|
|
{WindowDeactivate} and \l{QEvent::FocusIn}{FocusIn}/\l{QEvent::FocusOut}
|
|
{FocusOut} events to all appropriate widgets. The window will then be
|
|
painted in active state (e.g. cursors in line edits will blink), and it
|
|
will have tool tips enabled.
|
|
|
|
\sa activeWindow(), QWidget::activateWindow()
|
|
*/
|
|
void QApplication::setActiveWindow(QWidget* act)
|
|
{
|
|
QWidget* window = act?act->window():0;
|
|
|
|
if (QApplicationPrivate::active_window == window)
|
|
return;
|
|
|
|
#ifndef QT_NO_GRAPHICSVIEW
|
|
if (window && window->graphicsProxyWidget()) {
|
|
// Activate the proxy's view->viewport() ?
|
|
return;
|
|
}
|
|
#endif
|
|
|
|
QWidgetList toBeActivated;
|
|
QWidgetList toBeDeactivated;
|
|
|
|
if (QApplicationPrivate::active_window) {
|
|
if (style()->styleHint(QStyle::SH_Widget_ShareActivation, 0, QApplicationPrivate::active_window)) {
|
|
QWidgetList list = topLevelWidgets();
|
|
for (int i = 0; i < list.size(); ++i) {
|
|
QWidget *w = list.at(i);
|
|
if (w->isVisible() && w->isActiveWindow())
|
|
toBeDeactivated.append(w);
|
|
}
|
|
} else {
|
|
toBeDeactivated.append(QApplicationPrivate::active_window);
|
|
}
|
|
}
|
|
|
|
if (QApplicationPrivate::focus_widget) {
|
|
if (QApplicationPrivate::focus_widget->testAttribute(Qt::WA_InputMethodEnabled))
|
|
qApp->inputMethod()->commit();
|
|
|
|
QFocusEvent focusAboutToChange(QEvent::FocusAboutToChange, Qt::ActiveWindowFocusReason);
|
|
QApplication::sendEvent(QApplicationPrivate::focus_widget, &focusAboutToChange);
|
|
}
|
|
|
|
QApplicationPrivate::active_window = window;
|
|
|
|
if (QApplicationPrivate::active_window) {
|
|
if (style()->styleHint(QStyle::SH_Widget_ShareActivation, 0, QApplicationPrivate::active_window)) {
|
|
QWidgetList list = topLevelWidgets();
|
|
for (int i = 0; i < list.size(); ++i) {
|
|
QWidget *w = list.at(i);
|
|
if (w->isVisible() && w->isActiveWindow())
|
|
toBeActivated.append(w);
|
|
}
|
|
} else {
|
|
toBeActivated.append(QApplicationPrivate::active_window);
|
|
}
|
|
|
|
}
|
|
|
|
// first the activation/deactivation events
|
|
QEvent activationChange(QEvent::ActivationChange);
|
|
QEvent windowActivate(QEvent::WindowActivate);
|
|
QEvent windowDeactivate(QEvent::WindowDeactivate);
|
|
|
|
for (int i = 0; i < toBeActivated.size(); ++i) {
|
|
QWidget *w = toBeActivated.at(i);
|
|
sendSpontaneousEvent(w, &windowActivate);
|
|
sendSpontaneousEvent(w, &activationChange);
|
|
}
|
|
|
|
for(int i = 0; i < toBeDeactivated.size(); ++i) {
|
|
QWidget *w = toBeDeactivated.at(i);
|
|
sendSpontaneousEvent(w, &windowDeactivate);
|
|
sendSpontaneousEvent(w, &activationChange);
|
|
}
|
|
|
|
if (QApplicationPrivate::popupWidgets == 0) { // !inPopupMode()
|
|
// then focus events
|
|
if (!QApplicationPrivate::active_window && QApplicationPrivate::focus_widget) {
|
|
QApplicationPrivate::setFocusWidget(0, Qt::ActiveWindowFocusReason);
|
|
} else if (QApplicationPrivate::active_window) {
|
|
QWidget *w = QApplicationPrivate::active_window->focusWidget();
|
|
if (w && w->isVisible() /*&& w->focusPolicy() != QWidget::NoFocus*/)
|
|
w->setFocus(Qt::ActiveWindowFocusReason);
|
|
else {
|
|
w = QApplicationPrivate::focusNextPrevChild_helper(QApplicationPrivate::active_window, true);
|
|
if (w) {
|
|
w->setFocus(Qt::ActiveWindowFocusReason);
|
|
} else {
|
|
// If the focus widget is not in the activate_window, clear the focus
|
|
w = QApplicationPrivate::focus_widget;
|
|
if (!w && QApplicationPrivate::active_window->focusPolicy() != Qt::NoFocus)
|
|
QApplicationPrivate::setFocusWidget(QApplicationPrivate::active_window, Qt::ActiveWindowFocusReason);
|
|
else if (!QApplicationPrivate::active_window->isAncestorOf(w))
|
|
QApplicationPrivate::setFocusWidget(0, Qt::ActiveWindowFocusReason);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
/*!internal
|
|
* Helper function that returns the new focus widget, but does not set the focus reason.
|
|
* Returns 0 if a new focus widget could not be found.
|
|
* Shared with QGraphicsProxyWidgetPrivate::findFocusChild()
|
|
*/
|
|
QWidget *QApplicationPrivate::focusNextPrevChild_helper(QWidget *toplevel, bool next,
|
|
bool *wrappingOccurred)
|
|
{
|
|
uint focus_flag = qt_tab_all_widgets() ? Qt::TabFocus : Qt::StrongFocus;
|
|
|
|
QWidget *f = toplevel->focusWidget();
|
|
if (!f)
|
|
f = toplevel;
|
|
|
|
QWidget *w = f;
|
|
QWidget *test = f->d_func()->focus_next;
|
|
bool seenWindow = false;
|
|
bool focusWidgetAfterWindow = false;
|
|
while (test && test != f) {
|
|
if (test->isWindow())
|
|
seenWindow = true;
|
|
|
|
if ((test->focusPolicy() & focus_flag) == focus_flag
|
|
&& !(test->d_func()->extra && test->d_func()->extra->focus_proxy)
|
|
&& test->isVisibleTo(toplevel) && test->isEnabled()
|
|
&& !(w->windowType() == Qt::SubWindow && !w->isAncestorOf(test))
|
|
&& (toplevel->windowType() != Qt::SubWindow || toplevel->isAncestorOf(test))) {
|
|
w = test;
|
|
if (seenWindow)
|
|
focusWidgetAfterWindow = true;
|
|
if (next)
|
|
break;
|
|
}
|
|
test = test->d_func()->focus_next;
|
|
}
|
|
|
|
if (wrappingOccurred != 0)
|
|
*wrappingOccurred = next ? focusWidgetAfterWindow : !focusWidgetAfterWindow;
|
|
|
|
if (w == f) {
|
|
if (qt_in_tab_key_event) {
|
|
w->window()->setAttribute(Qt::WA_KeyboardFocusChange);
|
|
w->update();
|
|
}
|
|
return 0;
|
|
}
|
|
return w;
|
|
}
|
|
|
|
/*!
|
|
\fn void QApplicationPrivate::dispatchEnterLeave(QWidget* enter, QWidget* leave, const QPointF &globalPosF)
|
|
\internal
|
|
|
|
Creates the proper Enter/Leave event when widget \a enter is entered and
|
|
widget \a leave is left.
|
|
*/
|
|
void QApplicationPrivate::dispatchEnterLeave(QWidget* enter, QWidget* leave, const QPointF &globalPosF)
|
|
{
|
|
const QPoint globalPos = globalPosF.toPoint();
|
|
#if 0
|
|
if (leave) {
|
|
QEvent e(QEvent::Leave);
|
|
QApplication::sendEvent(leave, & e);
|
|
}
|
|
if (enter) {
|
|
const QPoint windowPos = enter->window()->mapFromGlobal(globalPos);
|
|
QEnterEvent e(enter->mapFromGlobal(globalPos), windowPos, globalPos);
|
|
QApplication::sendEvent(enter, & e);
|
|
}
|
|
return;
|
|
#endif
|
|
|
|
QWidget* w ;
|
|
if ((!enter && !leave) || (enter == leave))
|
|
return;
|
|
#ifdef ALIEN_DEBUG
|
|
qDebug() << "QApplicationPrivate::dispatchEnterLeave, ENTER:" << enter << "LEAVE:" << leave;
|
|
#endif
|
|
QWidgetList leaveList;
|
|
QWidgetList enterList;
|
|
|
|
bool sameWindow = leave && enter && leave->window() == enter->window();
|
|
if (leave && !sameWindow) {
|
|
w = leave;
|
|
do {
|
|
leaveList.append(w);
|
|
} while (!w->isWindow() && (w = w->parentWidget()));
|
|
}
|
|
if (enter && !sameWindow) {
|
|
w = enter;
|
|
do {
|
|
enterList.prepend(w);
|
|
} while (!w->isWindow() && (w = w->parentWidget()));
|
|
}
|
|
if (sameWindow) {
|
|
int enterDepth = 0;
|
|
int leaveDepth = 0;
|
|
w = enter;
|
|
while (!w->isWindow() && (w = w->parentWidget()))
|
|
enterDepth++;
|
|
w = leave;
|
|
while (!w->isWindow() && (w = w->parentWidget()))
|
|
leaveDepth++;
|
|
QWidget* wenter = enter;
|
|
QWidget* wleave = leave;
|
|
while (enterDepth > leaveDepth) {
|
|
wenter = wenter->parentWidget();
|
|
enterDepth--;
|
|
}
|
|
while (leaveDepth > enterDepth) {
|
|
wleave = wleave->parentWidget();
|
|
leaveDepth--;
|
|
}
|
|
while (!wenter->isWindow() && wenter != wleave) {
|
|
wenter = wenter->parentWidget();
|
|
wleave = wleave->parentWidget();
|
|
}
|
|
|
|
w = leave;
|
|
while (w != wleave) {
|
|
leaveList.append(w);
|
|
w = w->parentWidget();
|
|
}
|
|
w = enter;
|
|
while (w != wenter) {
|
|
enterList.prepend(w);
|
|
w = w->parentWidget();
|
|
}
|
|
}
|
|
|
|
QEvent leaveEvent(QEvent::Leave);
|
|
for (int i = 0; i < leaveList.size(); ++i) {
|
|
w = leaveList.at(i);
|
|
if (!QApplication::activeModalWidget() || QApplicationPrivate::tryModalHelper(w, 0)) {
|
|
QApplication::sendEvent(w, &leaveEvent);
|
|
if (w->testAttribute(Qt::WA_Hover) &&
|
|
(!QApplication::activePopupWidget() || QApplication::activePopupWidget() == w->window())) {
|
|
Q_ASSERT(instance());
|
|
QHoverEvent he(QEvent::HoverLeave, QPoint(-1, -1), w->mapFromGlobal(QApplicationPrivate::instance()->hoverGlobalPos),
|
|
QApplication::keyboardModifiers());
|
|
qApp->d_func()->notify_helper(w, &he);
|
|
}
|
|
}
|
|
}
|
|
if (!enterList.isEmpty()) {
|
|
const QPoint windowPos = enterList.front()->window()->mapFromGlobal(globalPos);
|
|
for (int i = 0; i < enterList.size(); ++i) {
|
|
w = enterList.at(i);
|
|
if (!QApplication::activeModalWidget() || QApplicationPrivate::tryModalHelper(w, 0)) {
|
|
const QPointF localPos = w->mapFromGlobal(globalPos);
|
|
QEnterEvent enterEvent(localPos, windowPos, globalPosF);
|
|
QApplication::sendEvent(w, &enterEvent);
|
|
if (w->testAttribute(Qt::WA_Hover) &&
|
|
(!QApplication::activePopupWidget() || QApplication::activePopupWidget() == w->window())) {
|
|
QHoverEvent he(QEvent::HoverEnter, localPos, QPoint(-1, -1),
|
|
QApplication::keyboardModifiers());
|
|
qApp->d_func()->notify_helper(w, &he);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
#ifndef QT_NO_CURSOR
|
|
// Update cursor for alien/graphics widgets.
|
|
|
|
const bool enterOnAlien = (enter && (isAlien(enter) || enter->testAttribute(Qt::WA_DontShowOnScreen)));
|
|
// Whenever we leave an alien widget on X11/QPA, we need to reset its nativeParentWidget()'s cursor.
|
|
// This is not required on Windows as the cursor is reset on every single mouse move.
|
|
QWidget *parentOfLeavingCursor = 0;
|
|
for (int i = 0; i < leaveList.size(); ++i) {
|
|
w = leaveList.at(i);
|
|
if (!isAlien(w))
|
|
break;
|
|
if (w->testAttribute(Qt::WA_SetCursor)) {
|
|
QWidget *parent = w->parentWidget();
|
|
while (parent && parent->d_func()->data.in_destructor)
|
|
parent = parent->parentWidget();
|
|
parentOfLeavingCursor = parent;
|
|
//continue looping, we need to find the downest alien widget with a cursor.
|
|
// (downest on the screen)
|
|
}
|
|
}
|
|
//check that we will not call qt_x11_enforce_cursor twice with the same native widget
|
|
if (parentOfLeavingCursor && (!enterOnAlien
|
|
|| parentOfLeavingCursor->effectiveWinId() != enter->effectiveWinId())) {
|
|
#ifndef QT_NO_GRAPHICSVIEW
|
|
if (!parentOfLeavingCursor->window()->graphicsProxyWidget())
|
|
#endif
|
|
{
|
|
if (enter == QApplication::desktop()) {
|
|
qt_qpa_set_cursor(enter, true);
|
|
} else {
|
|
qt_qpa_set_cursor(parentOfLeavingCursor, true);
|
|
}
|
|
}
|
|
}
|
|
if (enterOnAlien) {
|
|
QWidget *cursorWidget = enter;
|
|
while (!cursorWidget->isWindow() && !cursorWidget->isEnabled())
|
|
cursorWidget = cursorWidget->parentWidget();
|
|
|
|
if (!cursorWidget)
|
|
return;
|
|
|
|
#ifndef QT_NO_GRAPHICSVIEW
|
|
if (cursorWidget->window()->graphicsProxyWidget()) {
|
|
QWidgetPrivate::nearestGraphicsProxyWidget(cursorWidget)->setCursor(cursorWidget->cursor());
|
|
} else
|
|
#endif
|
|
{
|
|
qt_qpa_set_cursor(cursorWidget, true);
|
|
}
|
|
}
|
|
#endif
|
|
}
|
|
|
|
/* exported for the benefit of testing tools */
|
|
Q_WIDGETS_EXPORT bool qt_tryModalHelper(QWidget *widget, QWidget **rettop)
|
|
{
|
|
return QApplicationPrivate::tryModalHelper(widget, rettop);
|
|
}
|
|
|
|
/*! \internal
|
|
Returns true if \a widget is blocked by a modal window.
|
|
*/
|
|
bool QApplicationPrivate::isBlockedByModal(QWidget *widget)
|
|
{
|
|
widget = widget->window();
|
|
QWindow *window = widget->windowHandle();
|
|
return window && self->isWindowBlocked(window);
|
|
}
|
|
|
|
bool QApplicationPrivate::isWindowBlocked(QWindow *window, QWindow **blockingWindow) const
|
|
{
|
|
QWindow *unused = 0;
|
|
if (!window) {
|
|
qWarning().nospace() << "window == 0 passed.";
|
|
return false;
|
|
}
|
|
if (!blockingWindow)
|
|
blockingWindow = &unused;
|
|
|
|
if (modalWindowList.isEmpty()) {
|
|
*blockingWindow = 0;
|
|
return false;
|
|
}
|
|
QWidget *popupWidget = QApplication::activePopupWidget();
|
|
QWindow *popupWindow = popupWidget ? popupWidget->windowHandle() : 0;
|
|
if (popupWindow == window) {
|
|
*blockingWindow = 0;
|
|
return false;
|
|
}
|
|
|
|
for (int i = 0; i < modalWindowList.count(); ++i) {
|
|
QWindow *modalWindow = modalWindowList.at(i);
|
|
|
|
{
|
|
// check if the modal window is our window or a (transient) parent of our window
|
|
QWindow *w = window;
|
|
while (w) {
|
|
if (w == modalWindow) {
|
|
*blockingWindow = 0;
|
|
return false;
|
|
}
|
|
QWindow *p = w->parent();
|
|
if (!p)
|
|
p = w->transientParent();
|
|
w = p;
|
|
}
|
|
|
|
// Embedded in-process windows are not visible in normal parent-child chain,
|
|
// so check the native parent chain, too.
|
|
const QPlatformWindow *platWin = window->handle();
|
|
const QPlatformWindow *modalPlatWin = modalWindow->handle();
|
|
if (platWin && modalPlatWin && platWin->isEmbedded(modalPlatWin))
|
|
return false;
|
|
}
|
|
|
|
Qt::WindowModality windowModality = modalWindow->modality();
|
|
QWidgetWindow *modalWidgetWindow = qobject_cast<QWidgetWindow *>(modalWindow);
|
|
if (windowModality == Qt::NonModal) {
|
|
// determine the modality type if it hasn't been set on the
|
|
// modalWindow's widget, this normally happens when waiting for a
|
|
// native dialog. use WindowModal if we are the child of a group
|
|
// leader; otherwise use ApplicationModal.
|
|
QWidget *m = modalWidgetWindow ? modalWidgetWindow->widget() : 0;
|
|
while (m && !m->testAttribute(Qt::WA_GroupLeader)) {
|
|
m = m->parentWidget();
|
|
if (m)
|
|
m = m->window();
|
|
}
|
|
windowModality = (m && m->testAttribute(Qt::WA_GroupLeader))
|
|
? Qt::WindowModal
|
|
: Qt::ApplicationModal;
|
|
}
|
|
|
|
switch (windowModality) {
|
|
case Qt::ApplicationModal:
|
|
{
|
|
QWidgetWindow *widgetWindow = qobject_cast<QWidgetWindow *>(window);
|
|
QWidget *groupLeaderForWidget = widgetWindow ? widgetWindow->widget() : 0;
|
|
while (groupLeaderForWidget && !groupLeaderForWidget->testAttribute(Qt::WA_GroupLeader))
|
|
groupLeaderForWidget = groupLeaderForWidget->parentWidget();
|
|
|
|
if (groupLeaderForWidget) {
|
|
// if \a widget has WA_GroupLeader, it can only be blocked by ApplicationModal children
|
|
QWidget *m = modalWidgetWindow ? modalWidgetWindow->widget() : 0;
|
|
while (m && m != groupLeaderForWidget && !m->testAttribute(Qt::WA_GroupLeader))
|
|
m = m->parentWidget();
|
|
if (m == groupLeaderForWidget) {
|
|
*blockingWindow = m->windowHandle();
|
|
return true;
|
|
}
|
|
} else if (modalWindow != window) {
|
|
*blockingWindow = modalWindow;
|
|
return true;
|
|
}
|
|
break;
|
|
}
|
|
case Qt::WindowModal:
|
|
{
|
|
QWindow *w = window;
|
|
do {
|
|
QWindow *m = modalWindow;
|
|
do {
|
|
if (m == w) {
|
|
*blockingWindow = m;
|
|
return true;
|
|
}
|
|
QWindow *p = m->parent();
|
|
if (!p)
|
|
p = m->transientParent();
|
|
m = p;
|
|
} while (m);
|
|
QWindow *p = w->parent();
|
|
if (!p)
|
|
p = w->transientParent();
|
|
w = p;
|
|
} while (w);
|
|
break;
|
|
}
|
|
default:
|
|
Q_ASSERT_X(false, "QApplication", "internal error, a modal window cannot be modeless");
|
|
break;
|
|
}
|
|
}
|
|
*blockingWindow = 0;
|
|
return false;
|
|
}
|
|
|
|
/*!\internal
|
|
|
|
Called from qapplication_\e{platform}.cpp, returns true
|
|
if the widget should accept the event.
|
|
*/
|
|
bool QApplicationPrivate::tryModalHelper(QWidget *widget, QWidget **rettop)
|
|
{
|
|
QWidget *top = QApplication::activeModalWidget();
|
|
if (rettop)
|
|
*rettop = top;
|
|
|
|
// the active popup widget always gets the input event
|
|
if (QApplication::activePopupWidget())
|
|
return true;
|
|
|
|
return !isBlockedByModal(widget->window());
|
|
}
|
|
|
|
/*
|
|
\internal
|
|
*/
|
|
QWidget *QApplicationPrivate::pickMouseReceiver(QWidget *candidate, const QPoint &windowPos,
|
|
QPoint *pos, QEvent::Type type,
|
|
Qt::MouseButtons buttons, QWidget *buttonDown,
|
|
QWidget *alienWidget)
|
|
{
|
|
Q_ASSERT(candidate);
|
|
|
|
QWidget *mouseGrabber = QWidget::mouseGrabber();
|
|
if (((type == QEvent::MouseMove && buttons) || (type == QEvent::MouseButtonRelease))
|
|
&& !buttonDown && !mouseGrabber) {
|
|
return 0;
|
|
}
|
|
|
|
if (alienWidget && alienWidget->internalWinId())
|
|
alienWidget = 0;
|
|
|
|
QWidget *receiver = candidate;
|
|
|
|
if (!mouseGrabber)
|
|
mouseGrabber = (buttonDown && !isBlockedByModal(buttonDown)) ? buttonDown : alienWidget;
|
|
|
|
if (mouseGrabber && mouseGrabber != candidate) {
|
|
receiver = mouseGrabber;
|
|
*pos = receiver->mapFromGlobal(candidate->mapToGlobal(windowPos));
|
|
#ifdef ALIEN_DEBUG
|
|
qDebug() << " ** receiver adjusted to:" << receiver << "pos:" << pos;
|
|
#endif
|
|
}
|
|
|
|
return receiver;
|
|
|
|
}
|
|
|
|
/*
|
|
\internal
|
|
*/
|
|
bool QApplicationPrivate::sendMouseEvent(QWidget *receiver, QMouseEvent *event,
|
|
QWidget *alienWidget, QWidget *nativeWidget,
|
|
QWidget **buttonDown, QPointer<QWidget> &lastMouseReceiver,
|
|
bool spontaneous)
|
|
{
|
|
Q_ASSERT(receiver);
|
|
Q_ASSERT(event);
|
|
Q_ASSERT(nativeWidget);
|
|
Q_ASSERT(buttonDown);
|
|
|
|
if (alienWidget && !isAlien(alienWidget))
|
|
alienWidget = 0;
|
|
|
|
QPointer<QWidget> receiverGuard = receiver;
|
|
QPointer<QWidget> nativeGuard = nativeWidget;
|
|
QPointer<QWidget> alienGuard = alienWidget;
|
|
QPointer<QWidget> activePopupWidget = QApplication::activePopupWidget();
|
|
|
|
const bool graphicsWidget = nativeWidget->testAttribute(Qt::WA_DontShowOnScreen);
|
|
|
|
bool widgetUnderMouse = QRectF(receiver->rect()).contains(event->localPos());
|
|
|
|
// Clear the obsolete leaveAfterRelease value, if mouse button has been released but
|
|
// leaveAfterRelease has not been updated.
|
|
// This happens e.g. when modal dialog or popup is shown as a response to button click.
|
|
if (leaveAfterRelease && !*buttonDown && !event->buttons())
|
|
leaveAfterRelease = 0;
|
|
|
|
if (*buttonDown) {
|
|
if (!graphicsWidget) {
|
|
// Register the widget that shall receive a leave event
|
|
// after the last button is released.
|
|
if ((alienWidget || !receiver->internalWinId()) && !leaveAfterRelease && !QWidget::mouseGrabber())
|
|
leaveAfterRelease = *buttonDown;
|
|
if (event->type() == QEvent::MouseButtonRelease && !event->buttons())
|
|
*buttonDown = 0;
|
|
}
|
|
} else if (lastMouseReceiver && widgetUnderMouse) {
|
|
// Dispatch enter/leave if we move:
|
|
// 1) from an alien widget to another alien widget or
|
|
// from a native widget to an alien widget (first OR case)
|
|
// 2) from an alien widget to a native widget (second OR case)
|
|
if ((alienWidget && alienWidget != lastMouseReceiver)
|
|
|| (isAlien(lastMouseReceiver) && !alienWidget)) {
|
|
if (activePopupWidget) {
|
|
if (!QWidget::mouseGrabber())
|
|
dispatchEnterLeave(alienWidget ? alienWidget : nativeWidget, lastMouseReceiver, event->screenPos());
|
|
} else {
|
|
dispatchEnterLeave(receiver, lastMouseReceiver, event->screenPos());
|
|
}
|
|
|
|
}
|
|
}
|
|
|
|
#ifdef ALIEN_DEBUG
|
|
qDebug() << "QApplicationPrivate::sendMouseEvent: receiver:" << receiver
|
|
<< "pos:" << event->pos() << "alien" << alienWidget << "button down"
|
|
<< *buttonDown << "last" << lastMouseReceiver << "leave after release"
|
|
<< leaveAfterRelease;
|
|
#endif
|
|
|
|
// We need this quard in case someone opens a modal dialog / popup. If that's the case
|
|
// leaveAfterRelease is set to null, but we shall not update lastMouseReceiver.
|
|
const bool wasLeaveAfterRelease = leaveAfterRelease != 0;
|
|
bool result;
|
|
if (spontaneous)
|
|
result = QApplication::sendSpontaneousEvent(receiver, event);
|
|
else
|
|
result = QApplication::sendEvent(receiver, event);
|
|
|
|
if (!graphicsWidget && leaveAfterRelease && event->type() == QEvent::MouseButtonRelease
|
|
&& !event->buttons() && QWidget::mouseGrabber() != leaveAfterRelease) {
|
|
// Dispatch enter/leave if:
|
|
// 1) the mouse grabber is an alien widget
|
|
// 2) the button is released on an alien widget
|
|
QWidget *enter = 0;
|
|
if (nativeGuard)
|
|
enter = alienGuard ? alienWidget : nativeWidget;
|
|
else // The receiver is typically deleted on mouse release with drag'n'drop.
|
|
enter = QApplication::widgetAt(event->globalPos());
|
|
dispatchEnterLeave(enter, leaveAfterRelease, event->screenPos());
|
|
leaveAfterRelease = 0;
|
|
lastMouseReceiver = enter;
|
|
} else if (!wasLeaveAfterRelease) {
|
|
if (activePopupWidget) {
|
|
if (!QWidget::mouseGrabber())
|
|
lastMouseReceiver = alienGuard ? alienWidget : (nativeGuard ? nativeWidget : 0);
|
|
} else {
|
|
lastMouseReceiver = receiverGuard ? receiver : QApplication::widgetAt(event->globalPos());
|
|
}
|
|
}
|
|
|
|
return result;
|
|
}
|
|
|
|
/*
|
|
This function should only be called when the widget changes visibility, i.e.
|
|
when the \a widget is shown, hidden or deleted. This function does nothing
|
|
if the widget is a top-level or native, i.e. not an alien widget. In that
|
|
case enter/leave events are genereated by the underlying windowing system.
|
|
*/
|
|
extern QPointer<QWidget> qt_last_mouse_receiver;
|
|
extern QWidget *qt_button_down;
|
|
void QApplicationPrivate::sendSyntheticEnterLeave(QWidget *widget)
|
|
{
|
|
#ifndef QT_NO_CURSOR
|
|
if (!widget || widget->isWindow())
|
|
return;
|
|
const bool widgetInShow = widget->isVisible() && !widget->data->in_destructor;
|
|
if (!widgetInShow && widget != qt_last_mouse_receiver)
|
|
return; // Widget was not under the cursor when it was hidden/deleted.
|
|
|
|
if (widgetInShow && widget->parentWidget()->data->in_show)
|
|
return; // Ingore recursive show.
|
|
|
|
QWidget *mouseGrabber = QWidget::mouseGrabber();
|
|
if (mouseGrabber && mouseGrabber != widget)
|
|
return; // Someone else has the grab; enter/leave should not occur.
|
|
|
|
QWidget *tlw = widget->window();
|
|
if (tlw->data->in_destructor || tlw->data->is_closing)
|
|
return; // Closing down the business.
|
|
|
|
if (widgetInShow && (!qt_last_mouse_receiver || qt_last_mouse_receiver->window() != tlw))
|
|
return; // Mouse cursor not inside the widget's top-level.
|
|
|
|
const QPoint globalPos(QCursor::pos());
|
|
QPoint windowPos = tlw->mapFromGlobal(globalPos);
|
|
|
|
// Find the current widget under the mouse. If this function was called from
|
|
// the widget's destructor, we have to make sure childAt() doesn't take into
|
|
// account widgets that are about to be destructed.
|
|
QWidget *widgetUnderCursor = tlw->d_func()->childAt_helper(windowPos, widget->data->in_destructor);
|
|
if (!widgetUnderCursor)
|
|
widgetUnderCursor = tlw;
|
|
QPoint pos = widgetUnderCursor->mapFrom(tlw, windowPos);
|
|
|
|
if (widgetInShow && widgetUnderCursor != widget && !widget->isAncestorOf(widgetUnderCursor))
|
|
return; // Mouse cursor not inside the widget or any of its children.
|
|
|
|
if (widget->data->in_destructor && qt_button_down == widget)
|
|
qt_button_down = 0;
|
|
|
|
// Send enter/leave events followed by a mouse move on the entered widget.
|
|
QMouseEvent e(QEvent::MouseMove, pos, windowPos, globalPos, Qt::NoButton, Qt::NoButton, Qt::NoModifier);
|
|
sendMouseEvent(widgetUnderCursor, &e, widgetUnderCursor, tlw, &qt_button_down, qt_last_mouse_receiver);
|
|
#endif // QT_NO_CURSOR
|
|
}
|
|
|
|
/*!
|
|
Returns the desktop widget (also called the root window).
|
|
|
|
The desktop may be composed of multiple screens, so it would be incorrect,
|
|
for example, to attempt to \e center some widget in the desktop's geometry.
|
|
QDesktopWidget has various functions for obtaining useful geometries upon
|
|
the desktop, such as QDesktopWidget::screenGeometry() and
|
|
QDesktopWidget::availableGeometry().
|
|
|
|
On X11, it is also possible to draw on the desktop.
|
|
*/
|
|
QDesktopWidget *QApplication::desktop()
|
|
{
|
|
if (!qt_desktopWidget || // not created yet
|
|
!(qt_desktopWidget->windowType() == Qt::Desktop)) { // reparented away
|
|
qt_desktopWidget = new QDesktopWidget();
|
|
}
|
|
return qt_desktopWidget;
|
|
}
|
|
|
|
/*
|
|
Sets the time after which a drag should start to \a ms ms.
|
|
|
|
\sa startDragTime()
|
|
*/
|
|
|
|
void QApplication::setStartDragTime(int ms)
|
|
{
|
|
Q_UNUSED(ms)
|
|
}
|
|
|
|
/*!
|
|
\property QApplication::startDragTime
|
|
\brief the time in milliseconds that a mouse button must be held down
|
|
before a drag and drop operation will begin
|
|
|
|
If you support drag and drop in your application, and want to start a drag
|
|
and drop operation after the user has held down a mouse button for a
|
|
certain amount of time, you should use this property's value as the delay.
|
|
|
|
Qt also uses this delay internally, e.g. in QTextEdit and QLineEdit, for
|
|
starting a drag.
|
|
|
|
The default value is 500 ms.
|
|
|
|
\sa startDragDistance(), {Drag and Drop}
|
|
*/
|
|
|
|
int QApplication::startDragTime()
|
|
{
|
|
return qApp->styleHints()->startDragTime();
|
|
}
|
|
|
|
/*
|
|
Sets the distance after which a drag should start to \a l pixels.
|
|
|
|
\sa startDragDistance()
|
|
*/
|
|
|
|
void QApplication::setStartDragDistance(int l)
|
|
{
|
|
Q_UNUSED(l);
|
|
}
|
|
|
|
/*!
|
|
\property QApplication::startDragDistance
|
|
|
|
If you support drag and drop in your application, and want to start a drag
|
|
and drop operation after the user has moved the cursor a certain distance
|
|
with a button held down, you should use this property's value as the
|
|
minimum distance required.
|
|
|
|
For example, if the mouse position of the click is stored in \c startPos
|
|
and the current position (e.g. in the mouse move event) is \c currentPos,
|
|
you can find out if a drag should be started with code like this:
|
|
|
|
\snippet code/src_gui_kernel_qapplication.cpp 7
|
|
|
|
Qt uses this value internally, e.g. in QFileDialog.
|
|
|
|
The default value is 4 pixels.
|
|
|
|
\sa startDragTime(), QPoint::manhattanLength(), {Drag and Drop}
|
|
*/
|
|
|
|
int QApplication::startDragDistance()
|
|
{
|
|
return qApp->styleHints()->startDragDistance();
|
|
}
|
|
|
|
/*!
|
|
Enters the main event loop and waits until exit() is called, then returns
|
|
the value that was set to exit() (which is 0 if exit() is called via
|
|
quit()).
|
|
|
|
It is necessary to call this function to start event handling. The main
|
|
event loop receives events from the window system and dispatches these to
|
|
the application widgets.
|
|
|
|
Generally, no user interaction can take place before calling exec(). As a
|
|
special case, modal widgets like QMessageBox can be used before calling
|
|
exec(), because modal widgets call exec() to start a local event loop.
|
|
|
|
To make your application perform idle processing, i.e., executing a special
|
|
function whenever there are no pending events, use a QTimer with 0 timeout.
|
|
More advanced idle processing schemes can be achieved using processEvents().
|
|
|
|
We recommend that you connect clean-up code to the
|
|
\l{QCoreApplication::}{aboutToQuit()} signal, instead of putting it in your
|
|
application's \c{main()} function. This is because, on some platforms the
|
|
QApplication::exec() call may not return. For example, on the Windows
|
|
platform, when the user logs off, the system terminates the process after Qt
|
|
closes all top-level windows. Hence, there is \e{no guarantee} that the
|
|
application will have time to exit its event loop and execute code at the
|
|
end of the \c{main()} function, after the QApplication::exec() call.
|
|
|
|
\sa quitOnLastWindowClosed, quit(), exit(), processEvents(),
|
|
QCoreApplication::exec()
|
|
*/
|
|
int QApplication::exec()
|
|
{
|
|
return QGuiApplication::exec();
|
|
}
|
|
|
|
bool QApplicationPrivate::shouldQuit()
|
|
{
|
|
/* if there is no non-withdrawn primary window left (except
|
|
the ones without QuitOnClose), we emit the lastWindowClosed
|
|
signal */
|
|
QWidgetList list = QApplication::topLevelWidgets();
|
|
for (int i = 0; i < list.size(); ++i) {
|
|
QWidget *w = list.at(i);
|
|
if (w->isVisible() && !w->parentWidget() && w->testAttribute(Qt::WA_QuitOnClose))
|
|
return false;
|
|
}
|
|
return QGuiApplicationPrivate::shouldQuit();
|
|
}
|
|
|
|
static inline void closeAllPopups()
|
|
{
|
|
// Close all popups: In case some popup refuses to close,
|
|
// we give up after 1024 attempts (to avoid an infinite loop).
|
|
int maxiter = 1024;
|
|
QWidget *popup;
|
|
while ((popup = QApplication::activePopupWidget()) && maxiter--)
|
|
popup->close();
|
|
}
|
|
|
|
/*! \reimp
|
|
*/
|
|
bool QApplication::notify(QObject *receiver, QEvent *e)
|
|
{
|
|
Q_D(QApplication);
|
|
// no events are delivered after ~QCoreApplication() has started
|
|
if (QApplicationPrivate::is_app_closing)
|
|
return true;
|
|
|
|
if (receiver == 0) { // serious error
|
|
qWarning("QApplication::notify: Unexpected null receiver");
|
|
return true;
|
|
}
|
|
|
|
#ifndef QT_NO_DEBUG
|
|
d->checkReceiverThread(receiver);
|
|
#endif
|
|
|
|
if (receiver->isWindowType())
|
|
QGuiApplicationPrivate::sendQWindowEventToQPlatformWindow(static_cast<QWindow *>(receiver), e);
|
|
|
|
if(e->spontaneous()) {
|
|
// Capture the current mouse and keyboard states. Doing so here is
|
|
// required in order to support Qt Test synthesized events. Real mouse
|
|
// and keyboard state updates from the platform plugin are managed by
|
|
// QGuiApplicationPrivate::process(Mouse|Wheel|Key|Touch|Tablet)Event();
|
|
switch (e->type()) {
|
|
case QEvent::MouseButtonPress:
|
|
{
|
|
QMouseEvent *me = static_cast<QMouseEvent*>(e);
|
|
QApplicationPrivate::modifier_buttons = me->modifiers();
|
|
QApplicationPrivate::mouse_buttons |= me->button();
|
|
break;
|
|
}
|
|
case QEvent::MouseButtonRelease:
|
|
{
|
|
QMouseEvent *me = static_cast<QMouseEvent*>(e);
|
|
QApplicationPrivate::modifier_buttons = me->modifiers();
|
|
QApplicationPrivate::mouse_buttons &= ~me->button();
|
|
break;
|
|
}
|
|
case QEvent::KeyPress:
|
|
case QEvent::KeyRelease:
|
|
case QEvent::MouseMove:
|
|
#ifndef QT_NO_WHEELEVENT
|
|
case QEvent::Wheel:
|
|
#endif
|
|
case QEvent::TouchBegin:
|
|
case QEvent::TouchUpdate:
|
|
case QEvent::TouchEnd:
|
|
#ifndef QT_NO_TABLETEVENT
|
|
case QEvent::TabletMove:
|
|
case QEvent::TabletPress:
|
|
case QEvent::TabletRelease:
|
|
#endif
|
|
{
|
|
QInputEvent *ie = static_cast<QInputEvent*>(e);
|
|
QApplicationPrivate::modifier_buttons = ie->modifiers();
|
|
break;
|
|
}
|
|
default:
|
|
break;
|
|
}
|
|
}
|
|
|
|
#ifndef QT_NO_GESTURES
|
|
// walk through parents and check for gestures
|
|
if (d->gestureManager) {
|
|
switch (e->type()) {
|
|
case QEvent::Paint:
|
|
case QEvent::MetaCall:
|
|
case QEvent::DeferredDelete:
|
|
case QEvent::DragEnter: case QEvent::DragMove: case QEvent::DragLeave:
|
|
case QEvent::Drop: case QEvent::DragResponse:
|
|
case QEvent::ChildAdded: case QEvent::ChildPolished:
|
|
case QEvent::ChildRemoved:
|
|
case QEvent::UpdateRequest:
|
|
case QEvent::UpdateLater:
|
|
case QEvent::LocaleChange:
|
|
case QEvent::Style:
|
|
case QEvent::IconDrag:
|
|
case QEvent::StyleChange:
|
|
case QEvent::GraphicsSceneDragEnter:
|
|
case QEvent::GraphicsSceneDragMove:
|
|
case QEvent::GraphicsSceneDragLeave:
|
|
case QEvent::GraphicsSceneDrop:
|
|
case QEvent::DynamicPropertyChange:
|
|
case QEvent::NetworkReplyUpdated:
|
|
break;
|
|
default:
|
|
if (receiver->isWidgetType()) {
|
|
if (d->gestureManager->filterEvent(static_cast<QWidget *>(receiver), e))
|
|
return true;
|
|
} else {
|
|
// a special case for events that go to QGesture objects.
|
|
// We pass the object to the gesture manager and it'll figure
|
|
// out if it's QGesture or not.
|
|
if (d->gestureManager->filterEvent(receiver, e))
|
|
return true;
|
|
}
|
|
}
|
|
}
|
|
#endif // QT_NO_GESTURES
|
|
|
|
switch (e->type()) {
|
|
case QEvent::ApplicationDeactivate:
|
|
// Close all popups (triggers when switching applications
|
|
// by pressing ALT-TAB on Windows, which is not receive as key event.
|
|
closeAllPopups();
|
|
break;
|
|
case QEvent::Wheel: // User input and window activation makes tooltips sleep
|
|
case QEvent::ActivationChange:
|
|
case QEvent::KeyPress:
|
|
case QEvent::KeyRelease:
|
|
case QEvent::FocusOut:
|
|
case QEvent::FocusIn:
|
|
case QEvent::MouseButtonPress:
|
|
case QEvent::MouseButtonRelease:
|
|
case QEvent::MouseButtonDblClick:
|
|
d->toolTipFallAsleep.stop();
|
|
// fall-through
|
|
case QEvent::Leave:
|
|
d->toolTipWakeUp.stop();
|
|
default:
|
|
break;
|
|
}
|
|
|
|
bool res = false;
|
|
if (!receiver->isWidgetType()) {
|
|
res = d->notify_helper(receiver, e);
|
|
} else switch (e->type()) {
|
|
case QEvent::ShortcutOverride:
|
|
case QEvent::KeyPress:
|
|
case QEvent::KeyRelease:
|
|
{
|
|
bool isWidget = receiver->isWidgetType();
|
|
bool isGraphicsWidget = false;
|
|
#ifndef QT_NO_GRAPHICSVIEW
|
|
isGraphicsWidget = !isWidget && qobject_cast<QGraphicsWidget *>(receiver);
|
|
#endif
|
|
if (!isWidget && !isGraphicsWidget) {
|
|
res = d->notify_helper(receiver, e);
|
|
break;
|
|
}
|
|
|
|
QKeyEvent* key = static_cast<QKeyEvent*>(e);
|
|
if (key->type()==QEvent::KeyPress) {
|
|
#ifndef QT_NO_SHORTCUT
|
|
// Try looking for a Shortcut before sending key events
|
|
if ((res = qApp->d_func()->shortcutMap.tryShortcutEvent(receiver, key)))
|
|
return res;
|
|
#endif
|
|
qt_in_tab_key_event = (key->key() == Qt::Key_Backtab
|
|
|| key->key() == Qt::Key_Tab
|
|
|| key->key() == Qt::Key_Left
|
|
|| key->key() == Qt::Key_Up
|
|
|| key->key() == Qt::Key_Right
|
|
|| key->key() == Qt::Key_Down);
|
|
}
|
|
bool def = key->isAccepted();
|
|
QPointer<QObject> pr = receiver;
|
|
while (receiver) {
|
|
if (def)
|
|
key->accept();
|
|
else
|
|
key->ignore();
|
|
res = d->notify_helper(receiver, e);
|
|
QWidget *w = isWidget ? static_cast<QWidget *>(receiver) : 0;
|
|
#ifndef QT_NO_GRAPHICSVIEW
|
|
QGraphicsWidget *gw = isGraphicsWidget ? static_cast<QGraphicsWidget *>(receiver) : 0;
|
|
#endif
|
|
|
|
if ((res && key->isAccepted())
|
|
/*
|
|
QLineEdit will emit a signal on Key_Return, but
|
|
ignore the event, and sometimes the connected
|
|
slot deletes the QLineEdit (common in itemview
|
|
delegates), so we have to check if the widget
|
|
was destroyed even if the event was ignored (to
|
|
prevent a crash)
|
|
|
|
note that we don't have to reset pw while
|
|
propagating (because the original receiver will
|
|
be destroyed if one of its ancestors is)
|
|
*/
|
|
|| !pr
|
|
|| (isWidget && (w->isWindow() || !w->parentWidget()))
|
|
#ifndef QT_NO_GRAPHICSVIEW
|
|
|| (isGraphicsWidget && (gw->isWindow() || !gw->parentWidget()))
|
|
#endif
|
|
) {
|
|
break;
|
|
}
|
|
|
|
#ifndef QT_NO_GRAPHICSVIEW
|
|
receiver = w ? (QObject *)w->parentWidget() : (QObject *)gw->parentWidget();
|
|
#else
|
|
receiver = w->parentWidget();
|
|
#endif
|
|
}
|
|
qt_in_tab_key_event = false;
|
|
}
|
|
break;
|
|
case QEvent::MouseButtonPress:
|
|
case QEvent::MouseButtonRelease:
|
|
case QEvent::MouseButtonDblClick:
|
|
case QEvent::MouseMove:
|
|
{
|
|
QWidget* w = static_cast<QWidget *>(receiver);
|
|
|
|
QMouseEvent* mouse = static_cast<QMouseEvent*>(e);
|
|
QPoint relpos = mouse->pos();
|
|
|
|
if (e->spontaneous()) {
|
|
|
|
if (e->type() == QEvent::MouseButtonPress) {
|
|
QApplicationPrivate::giveFocusAccordingToFocusPolicy(w,
|
|
Qt::ClickFocus,
|
|
Qt::MouseFocusReason);
|
|
}
|
|
|
|
// ### Qt 5 These dynamic tool tips should be an OPT-IN feature. Some platforms
|
|
// like Mac OS X (probably others too), can optimize their views by not
|
|
// dispatching mouse move events. We have attributes to control hover,
|
|
// and mouse tracking, but as long as we are deciding to implement this
|
|
// feature without choice of opting-in or out, you ALWAYS have to have
|
|
// tracking enabled. Therefore, the other properties give a false sense of
|
|
// performance enhancement.
|
|
if (e->type() == QEvent::MouseMove && mouse->buttons() == 0) {
|
|
d->toolTipWidget = w;
|
|
d->toolTipPos = relpos;
|
|
d->toolTipGlobalPos = mouse->globalPos();
|
|
d->toolTipWakeUp.start(d->toolTipFallAsleep.isActive()?20:700, this);
|
|
}
|
|
}
|
|
|
|
bool eventAccepted = mouse->isAccepted();
|
|
|
|
QPointer<QWidget> pw = w;
|
|
while (w) {
|
|
QMouseEvent me(mouse->type(), relpos, mouse->windowPos(), mouse->globalPos(), mouse->button(), mouse->buttons(),
|
|
mouse->modifiers());
|
|
me.spont = mouse->spontaneous();
|
|
me.setTimestamp(mouse->timestamp());
|
|
// throw away any mouse-tracking-only mouse events
|
|
if (!w->hasMouseTracking()
|
|
&& mouse->type() == QEvent::MouseMove && mouse->buttons() == 0) {
|
|
// but still send them through all application event filters (normally done by notify_helper)
|
|
for (int i = 0; d->extraData && i < d->extraData->eventFilters.size(); ++i) {
|
|
register QObject *obj = d->extraData->eventFilters.at(i);
|
|
if (!obj)
|
|
continue;
|
|
if (obj->d_func()->threadData != w->d_func()->threadData) {
|
|
qWarning("QApplication: Object event filter cannot be in a different thread.");
|
|
continue;
|
|
}
|
|
if (obj->eventFilter(w, w == receiver ? mouse : &me))
|
|
break;
|
|
}
|
|
res = true;
|
|
} else {
|
|
w->setAttribute(Qt::WA_NoMouseReplay, false);
|
|
res = d->notify_helper(w, w == receiver ? mouse : &me);
|
|
e->spont = false;
|
|
}
|
|
eventAccepted = (w == receiver ? mouse : &me)->isAccepted();
|
|
if (res && eventAccepted)
|
|
break;
|
|
if (w->isWindow() || w->testAttribute(Qt::WA_NoMousePropagation))
|
|
break;
|
|
relpos += w->pos();
|
|
w = w->parentWidget();
|
|
}
|
|
|
|
mouse->setAccepted(eventAccepted);
|
|
|
|
if (e->type() == QEvent::MouseMove) {
|
|
if (!pw)
|
|
break;
|
|
|
|
w = static_cast<QWidget *>(receiver);
|
|
relpos = mouse->pos();
|
|
QPoint diff = relpos - w->mapFromGlobal(d->hoverGlobalPos);
|
|
while (w) {
|
|
if (w->testAttribute(Qt::WA_Hover) &&
|
|
(!QApplication::activePopupWidget() || QApplication::activePopupWidget() == w->window())) {
|
|
QHoverEvent he(QEvent::HoverMove, relpos, relpos - diff, mouse->modifiers());
|
|
d->notify_helper(w, &he);
|
|
}
|
|
if (w->isWindow() || w->testAttribute(Qt::WA_NoMousePropagation))
|
|
break;
|
|
relpos += w->pos();
|
|
w = w->parentWidget();
|
|
}
|
|
}
|
|
|
|
d->hoverGlobalPos = mouse->globalPos();
|
|
}
|
|
break;
|
|
#ifndef QT_NO_WHEELEVENT
|
|
case QEvent::Wheel:
|
|
{
|
|
QWidget* w = static_cast<QWidget *>(receiver);
|
|
QWheelEvent* wheel = static_cast<QWheelEvent*>(e);
|
|
QPoint relpos = wheel->pos();
|
|
bool eventAccepted = wheel->isAccepted();
|
|
|
|
if (e->spontaneous()) {
|
|
QApplicationPrivate::giveFocusAccordingToFocusPolicy(w,
|
|
Qt::WheelFocus,
|
|
Qt::MouseFocusReason);
|
|
}
|
|
|
|
while (w) {
|
|
QWheelEvent we(relpos, wheel->globalPos(), wheel->pixelDelta(), wheel->angleDelta(), wheel->delta(), wheel->orientation(), wheel->buttons(),
|
|
wheel->modifiers());
|
|
we.spont = wheel->spontaneous();
|
|
res = d->notify_helper(w, w == receiver ? wheel : &we);
|
|
eventAccepted = ((w == receiver) ? wheel : &we)->isAccepted();
|
|
e->spont = false;
|
|
if ((res && eventAccepted)
|
|
|| w->isWindow() || w->testAttribute(Qt::WA_NoMousePropagation))
|
|
break;
|
|
|
|
relpos += w->pos();
|
|
w = w->parentWidget();
|
|
}
|
|
wheel->setAccepted(eventAccepted);
|
|
}
|
|
break;
|
|
#endif
|
|
#ifndef QT_NO_CONTEXTMENU
|
|
case QEvent::ContextMenu:
|
|
{
|
|
QWidget* w = static_cast<QWidget *>(receiver);
|
|
QContextMenuEvent *context = static_cast<QContextMenuEvent*>(e);
|
|
QPoint relpos = context->pos();
|
|
bool eventAccepted = context->isAccepted();
|
|
while (w) {
|
|
QContextMenuEvent ce(context->reason(), relpos, context->globalPos(), context->modifiers());
|
|
ce.spont = e->spontaneous();
|
|
res = d->notify_helper(w, w == receiver ? context : &ce);
|
|
eventAccepted = ((w == receiver) ? context : &ce)->isAccepted();
|
|
e->spont = false;
|
|
|
|
if ((res && eventAccepted)
|
|
|| w->isWindow() || w->testAttribute(Qt::WA_NoMousePropagation))
|
|
break;
|
|
|
|
relpos += w->pos();
|
|
w = w->parentWidget();
|
|
}
|
|
context->setAccepted(eventAccepted);
|
|
}
|
|
break;
|
|
#endif // QT_NO_CONTEXTMENU
|
|
#ifndef QT_NO_TABLETEVENT
|
|
case QEvent::TabletMove:
|
|
case QEvent::TabletPress:
|
|
case QEvent::TabletRelease:
|
|
{
|
|
QWidget *w = static_cast<QWidget *>(receiver);
|
|
QTabletEvent *tablet = static_cast<QTabletEvent*>(e);
|
|
QPointF relpos = tablet->posF();
|
|
bool eventAccepted = tablet->isAccepted();
|
|
while (w) {
|
|
QTabletEvent te(tablet->type(), relpos, tablet->globalPosF(),
|
|
tablet->device(), tablet->pointerType(),
|
|
tablet->pressure(), tablet->xTilt(), tablet->yTilt(),
|
|
tablet->tangentialPressure(), tablet->rotation(), tablet->z(),
|
|
tablet->modifiers(), tablet->uniqueId());
|
|
te.spont = e->spontaneous();
|
|
res = d->notify_helper(w, w == receiver ? tablet : &te);
|
|
eventAccepted = ((w == receiver) ? tablet : &te)->isAccepted();
|
|
e->spont = false;
|
|
if ((res && eventAccepted)
|
|
|| w->isWindow()
|
|
|| w->testAttribute(Qt::WA_NoMousePropagation))
|
|
break;
|
|
|
|
relpos += w->pos();
|
|
w = w->parentWidget();
|
|
}
|
|
tablet->setAccepted(eventAccepted);
|
|
qt_tabletChokeMouse = tablet->isAccepted();
|
|
}
|
|
break;
|
|
#endif // QT_NO_TABLETEVENT
|
|
|
|
#if !defined(QT_NO_TOOLTIP) || !defined(QT_NO_WHATSTHIS)
|
|
case QEvent::ToolTip:
|
|
case QEvent::WhatsThis:
|
|
case QEvent::QueryWhatsThis:
|
|
{
|
|
QWidget* w = static_cast<QWidget *>(receiver);
|
|
QHelpEvent *help = static_cast<QHelpEvent*>(e);
|
|
QPoint relpos = help->pos();
|
|
bool eventAccepted = help->isAccepted();
|
|
while (w) {
|
|
QHelpEvent he(help->type(), relpos, help->globalPos());
|
|
he.spont = e->spontaneous();
|
|
res = d->notify_helper(w, w == receiver ? help : &he);
|
|
e->spont = false;
|
|
eventAccepted = (w == receiver ? help : &he)->isAccepted();
|
|
if ((res && eventAccepted) || w->isWindow())
|
|
break;
|
|
|
|
relpos += w->pos();
|
|
w = w->parentWidget();
|
|
}
|
|
help->setAccepted(eventAccepted);
|
|
}
|
|
break;
|
|
#endif
|
|
#if !defined(QT_NO_STATUSTIP) || !defined(QT_NO_WHATSTHIS)
|
|
case QEvent::StatusTip:
|
|
case QEvent::WhatsThisClicked:
|
|
{
|
|
QWidget *w = static_cast<QWidget *>(receiver);
|
|
while (w) {
|
|
res = d->notify_helper(w, e);
|
|
if ((res && e->isAccepted()) || w->isWindow())
|
|
break;
|
|
w = w->parentWidget();
|
|
}
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
#ifndef QT_NO_DRAGANDDROP
|
|
case QEvent::DragEnter: {
|
|
QWidget* w = static_cast<QWidget *>(receiver);
|
|
QDragEnterEvent *dragEvent = static_cast<QDragEnterEvent *>(e);
|
|
#ifndef QT_NO_GRAPHICSVIEW
|
|
// QGraphicsProxyWidget handles its own propagation,
|
|
// and we must not change QDragManagers currentTarget.
|
|
QWExtra *extra = w->window()->d_func()->extra;
|
|
if (extra && extra->proxyWidget) {
|
|
res = d->notify_helper(w, dragEvent);
|
|
break;
|
|
}
|
|
#endif
|
|
while (w) {
|
|
if (w->isEnabled() && w->acceptDrops()) {
|
|
res = d->notify_helper(w, dragEvent);
|
|
if (res && dragEvent->isAccepted()) {
|
|
QDragManager::self()->setCurrentTarget(w);
|
|
break;
|
|
}
|
|
}
|
|
if (w->isWindow())
|
|
break;
|
|
dragEvent->p = w->mapToParent(dragEvent->p.toPoint());
|
|
w = w->parentWidget();
|
|
}
|
|
}
|
|
break;
|
|
case QEvent::DragMove:
|
|
case QEvent::Drop:
|
|
case QEvent::DragLeave: {
|
|
QWidget* w = static_cast<QWidget *>(receiver);
|
|
#ifndef QT_NO_GRAPHICSVIEW
|
|
// QGraphicsProxyWidget handles its own propagation,
|
|
// and we must not change QDragManagers currentTarget.
|
|
QWExtra *extra = w->window()->d_func()->extra;
|
|
bool isProxyWidget = extra && extra->proxyWidget;
|
|
if (!isProxyWidget)
|
|
#endif
|
|
w = qobject_cast<QWidget *>(QDragManager::self()->currentTarget());
|
|
|
|
if (!w) {
|
|
break;
|
|
}
|
|
if (e->type() == QEvent::DragMove || e->type() == QEvent::Drop) {
|
|
QDropEvent *dragEvent = static_cast<QDropEvent *>(e);
|
|
QWidget *origReciver = static_cast<QWidget *>(receiver);
|
|
while (origReciver && w != origReciver) {
|
|
dragEvent->p = origReciver->mapToParent(dragEvent->p.toPoint());
|
|
origReciver = origReciver->parentWidget();
|
|
}
|
|
}
|
|
res = d->notify_helper(w, e);
|
|
if (e->type() != QEvent::DragMove
|
|
#ifndef QT_NO_GRAPHICSVIEW
|
|
&& !isProxyWidget
|
|
#endif
|
|
)
|
|
QDragManager::self()->setCurrentTarget(0, e->type() == QEvent::Drop);
|
|
}
|
|
break;
|
|
#endif
|
|
|
|
case QEvent::TouchUpdate:
|
|
case QEvent::TouchEnd:
|
|
{
|
|
QWidget *widget = static_cast<QWidget *>(receiver);
|
|
QTouchEvent *touchEvent = static_cast<QTouchEvent *>(e);
|
|
const bool acceptTouchEvents = widget->testAttribute(Qt::WA_AcceptTouchEvents);
|
|
|
|
touchEvent->setTarget(widget);
|
|
touchEvent->setAccepted(acceptTouchEvents);
|
|
|
|
res = acceptTouchEvents && d->notify_helper(widget, touchEvent);
|
|
|
|
// If the touch event wasn't accepted, synthesize a mouse event and see if the widget wants it.
|
|
if (!touchEvent->isAccepted() && QGuiApplicationPrivate::synthesizeMouseFromTouchEventsEnabled())
|
|
res = d->translateTouchToMouse(widget, touchEvent);
|
|
break;
|
|
}
|
|
|
|
case QEvent::TouchBegin:
|
|
// Note: TouchUpdate and TouchEnd events are never propagated
|
|
{
|
|
QWidget *widget = static_cast<QWidget *>(receiver);
|
|
QTouchEvent *touchEvent = static_cast<QTouchEvent *>(e);
|
|
bool eventAccepted = touchEvent->isAccepted();
|
|
if (widget->testAttribute(Qt::WA_AcceptTouchEvents) && e->spontaneous()) {
|
|
// give the widget focus if the focus policy allows it
|
|
QApplicationPrivate::giveFocusAccordingToFocusPolicy(widget,
|
|
Qt::ClickFocus,
|
|
Qt::MouseFocusReason);
|
|
}
|
|
|
|
while (widget) {
|
|
// first, try to deliver the touch event
|
|
bool acceptTouchEvents = widget->testAttribute(Qt::WA_AcceptTouchEvents);
|
|
touchEvent->setTarget(widget);
|
|
touchEvent->setAccepted(acceptTouchEvents);
|
|
QPointer<QWidget> p = widget;
|
|
res = acceptTouchEvents && d->notify_helper(widget, touchEvent);
|
|
|
|
// If the touch event wasn't accepted, synthesize a mouse event and see if the widget wants it.
|
|
if (!touchEvent->isAccepted() && QGuiApplicationPrivate::synthesizeMouseFromTouchEventsEnabled()) {
|
|
res = d->translateTouchToMouse(widget, touchEvent);
|
|
eventAccepted = touchEvent->isAccepted();
|
|
if (eventAccepted)
|
|
break;
|
|
}
|
|
|
|
eventAccepted = touchEvent->isAccepted();
|
|
if (p.isNull()) {
|
|
// widget was deleted
|
|
widget = 0;
|
|
} else {
|
|
widget->setAttribute(Qt::WA_WState_AcceptedTouchBeginEvent, res && eventAccepted);
|
|
}
|
|
touchEvent->spont = false;
|
|
if (res && eventAccepted) {
|
|
// the first widget to accept the TouchBegin gets an implicit grab.
|
|
for (int i = 0; i < touchEvent->touchPoints().count(); ++i) {
|
|
const QTouchEvent::TouchPoint &touchPoint = touchEvent->touchPoints().at(i);
|
|
d->activeTouchPoints[QGuiApplicationPrivate::ActiveTouchPointsKey(touchEvent->device(), touchPoint.id())].target = widget;
|
|
}
|
|
break;
|
|
} else if (p.isNull() || widget->isWindow() || widget->testAttribute(Qt::WA_NoMousePropagation)) {
|
|
break;
|
|
}
|
|
QPoint offset = widget->pos();
|
|
widget = widget->parentWidget();
|
|
touchEvent->setTarget(widget);
|
|
for (int i = 0; i < touchEvent->_touchPoints.size(); ++i) {
|
|
QTouchEvent::TouchPoint &pt = touchEvent->_touchPoints[i];
|
|
QRectF rect = pt.rect();
|
|
rect.moveCenter(offset);
|
|
pt.d->rect = rect;
|
|
pt.d->startPos = pt.startPos() + offset;
|
|
pt.d->lastPos = pt.lastPos() + offset;
|
|
}
|
|
}
|
|
|
|
touchEvent->setAccepted(eventAccepted);
|
|
break;
|
|
}
|
|
case QEvent::RequestSoftwareInputPanel:
|
|
inputMethod()->show();
|
|
break;
|
|
case QEvent::CloseSoftwareInputPanel:
|
|
inputMethod()->hide();
|
|
break;
|
|
|
|
#ifndef QT_NO_GESTURES
|
|
case QEvent::NativeGesture:
|
|
{
|
|
// only propagate the first gesture event (after the GID_BEGIN)
|
|
QWidget *w = static_cast<QWidget *>(receiver);
|
|
while (w) {
|
|
e->ignore();
|
|
res = d->notify_helper(w, e);
|
|
if ((res && e->isAccepted()) || w->isWindow())
|
|
break;
|
|
w = w->parentWidget();
|
|
}
|
|
break;
|
|
}
|
|
case QEvent::Gesture:
|
|
case QEvent::GestureOverride:
|
|
{
|
|
if (receiver->isWidgetType()) {
|
|
QWidget *w = static_cast<QWidget *>(receiver);
|
|
QGestureEvent *gestureEvent = static_cast<QGestureEvent *>(e);
|
|
QList<QGesture *> allGestures = gestureEvent->gestures();
|
|
|
|
bool eventAccepted = gestureEvent->isAccepted();
|
|
bool wasAccepted = eventAccepted;
|
|
while (w) {
|
|
// send only gestures the widget expects
|
|
QList<QGesture *> gestures;
|
|
QWidgetPrivate *wd = w->d_func();
|
|
for (int i = 0; i < allGestures.size();) {
|
|
QGesture *g = allGestures.at(i);
|
|
Qt::GestureType type = g->gestureType();
|
|
QMap<Qt::GestureType, Qt::GestureFlags>::iterator contextit =
|
|
wd->gestureContext.find(type);
|
|
bool deliver = contextit != wd->gestureContext.end() &&
|
|
(g->state() == Qt::GestureStarted || w == receiver ||
|
|
(contextit.value() & Qt::ReceivePartialGestures));
|
|
if (deliver) {
|
|
allGestures.removeAt(i);
|
|
gestures.append(g);
|
|
} else {
|
|
++i;
|
|
}
|
|
}
|
|
if (!gestures.isEmpty()) { // we have gestures for this w
|
|
QGestureEvent ge(gestures);
|
|
ge.t = gestureEvent->t;
|
|
ge.spont = gestureEvent->spont;
|
|
ge.m_accept = wasAccepted;
|
|
ge.m_accepted = gestureEvent->m_accepted;
|
|
res = d->notify_helper(w, &ge);
|
|
gestureEvent->spont = false;
|
|
eventAccepted = ge.isAccepted();
|
|
for (int i = 0; i < gestures.size(); ++i) {
|
|
QGesture *g = gestures.at(i);
|
|
// Ignore res [event return value] because handling of multiple gestures
|
|
// packed into a single QEvent depends on not consuming the event
|
|
if (eventAccepted || ge.isAccepted(g)) {
|
|
// if the gesture was accepted, mark the target widget for it
|
|
gestureEvent->m_targetWidgets[g->gestureType()] = w;
|
|
gestureEvent->setAccepted(g, true);
|
|
} else {
|
|
// if the gesture was explicitly ignored by the application,
|
|
// put it back so a parent can get it
|
|
allGestures.append(g);
|
|
}
|
|
}
|
|
}
|
|
if (allGestures.isEmpty()) // everything delivered
|
|
break;
|
|
if (w->isWindow())
|
|
break;
|
|
w = w->parentWidget();
|
|
}
|
|
foreach (QGesture *g, allGestures)
|
|
gestureEvent->setAccepted(g, false);
|
|
gestureEvent->m_accept = false; // to make sure we check individual gestures
|
|
} else {
|
|
res = d->notify_helper(receiver, e);
|
|
}
|
|
break;
|
|
}
|
|
#endif // QT_NO_GESTURES
|
|
#ifdef Q_OS_MAC
|
|
// Enable touch events on enter, disable on leave.
|
|
typedef void (*RegisterTouchWindowFn)(QWindow *, bool);
|
|
case QEvent::Enter:
|
|
if (receiver->isWidgetType()) {
|
|
QWidget *w = static_cast<QWidget *>(receiver);
|
|
if (w->testAttribute(Qt::WA_AcceptTouchEvents)) {
|
|
RegisterTouchWindowFn registerTouchWindow = reinterpret_cast<RegisterTouchWindowFn>
|
|
(platformNativeInterface()->nativeResourceFunctionForIntegration("registertouchwindow"));
|
|
if (registerTouchWindow)
|
|
registerTouchWindow(w->window()->windowHandle(), true);
|
|
}
|
|
}
|
|
res = d->notify_helper(receiver, e);
|
|
break;
|
|
case QEvent::Leave:
|
|
if (receiver->isWidgetType()) {
|
|
QWidget *w = static_cast<QWidget *>(receiver);
|
|
if (w->testAttribute(Qt::WA_AcceptTouchEvents)) {
|
|
RegisterTouchWindowFn registerTouchWindow = reinterpret_cast<RegisterTouchWindowFn>
|
|
(platformNativeInterface()->nativeResourceFunctionForIntegration("registertouchwindow"));
|
|
if (registerTouchWindow)
|
|
registerTouchWindow(w->window()->windowHandle(), false);
|
|
}
|
|
}
|
|
res = d->notify_helper(receiver, e);
|
|
break;
|
|
#endif
|
|
default:
|
|
res = d->notify_helper(receiver, e);
|
|
break;
|
|
}
|
|
|
|
return res;
|
|
}
|
|
|
|
bool QApplicationPrivate::notify_helper(QObject *receiver, QEvent * e)
|
|
{
|
|
// send to all application event filters
|
|
if (sendThroughApplicationEventFilters(receiver, e))
|
|
return true;
|
|
|
|
if (receiver->isWidgetType()) {
|
|
QWidget *widget = static_cast<QWidget *>(receiver);
|
|
|
|
#if !defined(Q_OS_WINCE) || (defined(GWES_ICONCURS) && !defined(QT_NO_CURSOR))
|
|
// toggle HasMouse widget state on enter and leave
|
|
if ((e->type() == QEvent::Enter || e->type() == QEvent::DragEnter) &&
|
|
(!QApplication::activePopupWidget() || QApplication::activePopupWidget() == widget->window()))
|
|
widget->setAttribute(Qt::WA_UnderMouse, true);
|
|
else if (e->type() == QEvent::Leave || e->type() == QEvent::DragLeave)
|
|
widget->setAttribute(Qt::WA_UnderMouse, false);
|
|
#endif
|
|
|
|
if (QLayout *layout=widget->d_func()->layout) {
|
|
layout->widgetEvent(e);
|
|
}
|
|
}
|
|
|
|
// send to all receiver event filters
|
|
if (sendThroughObjectEventFilters(receiver, e))
|
|
return true;
|
|
|
|
// deliver the event
|
|
bool consumed = receiver->event(e);
|
|
e->spont = false;
|
|
return consumed;
|
|
}
|
|
|
|
bool QApplicationPrivate::inPopupMode()
|
|
{
|
|
return QApplicationPrivate::popupWidgets != 0;
|
|
}
|
|
|
|
#ifdef QT_KEYPAD_NAVIGATION
|
|
/*!
|
|
Sets the kind of focus navigation Qt should use to \a mode.
|
|
|
|
This feature is available in Qt for Embedded Linux, and Windows CE
|
|
only.
|
|
|
|
\note On Windows CE this feature is disabled by default for touch device
|
|
mkspecs. To enable keypad navigation, build Qt with
|
|
QT_KEYPAD_NAVIGATION defined.
|
|
|
|
\since 4.6
|
|
|
|
\sa keypadNavigationEnabled()
|
|
*/
|
|
void QApplication::setNavigationMode(Qt::NavigationMode mode)
|
|
{
|
|
QApplicationPrivate::navigationMode = mode;
|
|
}
|
|
|
|
/*!
|
|
Returns what kind of focus navigation Qt is using.
|
|
|
|
This feature is available in Qt for Embedded Linux, and Windows CE only.
|
|
|
|
\note On Windows CE this feature is disabled by default for touch device
|
|
mkspecs. To enable keypad navigation, build Qt with
|
|
QT_KEYPAD_NAVIGATION defined.
|
|
|
|
\since 4.6
|
|
|
|
\sa keypadNavigationEnabled()
|
|
*/
|
|
Qt::NavigationMode QApplication::navigationMode()
|
|
{
|
|
return QApplicationPrivate::navigationMode;
|
|
}
|
|
|
|
/*!
|
|
Sets whether Qt should use focus navigation suitable for use with a
|
|
minimal keypad.
|
|
|
|
This feature is available in Qt for Embedded Linux, and Windows CE only.
|
|
|
|
\note On Windows CE this feature is disabled by default for touch device
|
|
mkspecs. To enable keypad navigation, build Qt with
|
|
QT_KEYPAD_NAVIGATION defined.
|
|
|
|
\deprecated
|
|
|
|
\sa setNavigationMode()
|
|
*/
|
|
void QApplication::setKeypadNavigationEnabled(bool enable)
|
|
{
|
|
if (enable) {
|
|
QApplication::setNavigationMode(Qt::NavigationModeKeypadTabOrder);
|
|
} else {
|
|
QApplication::setNavigationMode(Qt::NavigationModeNone);
|
|
}
|
|
}
|
|
|
|
/*!
|
|
Returns true if Qt is set to use keypad navigation; otherwise returns
|
|
false. The default value is false.
|
|
|
|
This feature is available in Qt for Embedded Linux, and Windows CE only.
|
|
|
|
\note On Windows CE this feature is disabled by default for touch device
|
|
mkspecs. To enable keypad navigation, build Qt with
|
|
QT_KEYPAD_NAVIGATION defined.
|
|
|
|
\deprecated
|
|
|
|
\sa navigationMode()
|
|
*/
|
|
bool QApplication::keypadNavigationEnabled()
|
|
{
|
|
return QApplicationPrivate::navigationMode == Qt::NavigationModeKeypadTabOrder ||
|
|
QApplicationPrivate::navigationMode == Qt::NavigationModeKeypadDirectional;
|
|
}
|
|
#endif
|
|
|
|
/*!
|
|
\fn void QApplication::alert(QWidget *widget, int msec)
|
|
\since 4.3
|
|
|
|
Causes an alert to be shown for \a widget if the window is not the active
|
|
window. The alert is shown for \a msec miliseconds. If \a msec is zero (the
|
|
default), then the alert is shown indefinitely until the window becomes
|
|
active again.
|
|
|
|
Currently this function does nothing on Qt for Embedded Linux.
|
|
|
|
On Mac OS X, this works more at the application level and will cause the
|
|
application icon to bounce in the dock.
|
|
|
|
On Windows, this causes the window's taskbar entry to flash for a time. If
|
|
\a msec is zero, the flashing will stop and the taskbar entry will turn a
|
|
different color (currently orange).
|
|
|
|
On X11, this will cause the window to be marked as "demands attention", the
|
|
window must not be hidden (i.e. not have hide() called on it, but be
|
|
visible in some sort of way) in order for this to work.
|
|
*/
|
|
|
|
/*!
|
|
\property QApplication::cursorFlashTime
|
|
\brief the text cursor's flash (blink) time in milliseconds
|
|
|
|
The flash time is the time required to display, invert and restore the
|
|
caret display. Usually the text cursor is displayed for half the cursor
|
|
flash time, then hidden for the same amount of time, but this may vary.
|
|
|
|
The default value on X11 is 1000 milliseconds. On Windows, the
|
|
\uicontrol{Control Panel} value is used and setting this property sets the cursor
|
|
flash time for all applications.
|
|
|
|
We recommend that widgets do not cache this value as it may change at any
|
|
time if the user changes the global desktop settings.
|
|
*/
|
|
void QApplication::setCursorFlashTime(int msecs)
|
|
{
|
|
Q_UNUSED(msecs);
|
|
}
|
|
|
|
int QApplication::cursorFlashTime()
|
|
{
|
|
return qApp->styleHints()->cursorFlashTime();
|
|
}
|
|
|
|
/*!
|
|
\property QApplication::doubleClickInterval
|
|
\brief the time limit in milliseconds that distinguishes a double click
|
|
from two consecutive mouse clicks
|
|
|
|
The default value on X11 is 400 milliseconds. On Windows and Mac OS, the
|
|
operating system's value is used.
|
|
|
|
Setting the interval is not supported anymore in Qt 5.
|
|
*/
|
|
void QApplication::setDoubleClickInterval(int ms)
|
|
{
|
|
Q_UNUSED(ms);
|
|
}
|
|
|
|
int QApplication::doubleClickInterval()
|
|
{
|
|
return qApp->styleHints()->mouseDoubleClickInterval();
|
|
}
|
|
|
|
/*!
|
|
\fn QApplication::keyboardInputDirection()
|
|
\since 4.2
|
|
\deprecated
|
|
|
|
Returns the current keyboard input direction. Replaced with QInputMethod::inputDirection()
|
|
\sa QInputMethod::inputDirection()
|
|
*/
|
|
|
|
/*!
|
|
\property QApplication::keyboardInputInterval
|
|
\brief the time limit in milliseconds that distinguishes a key press
|
|
from two consecutive key presses
|
|
\since 4.2
|
|
|
|
The default value on X11 is 400 milliseconds. On Windows and Mac OS, the
|
|
operating system's value is used.
|
|
*/
|
|
void QApplication::setKeyboardInputInterval(int ms)
|
|
{
|
|
Q_UNUSED(ms);
|
|
}
|
|
|
|
int QApplication::keyboardInputInterval()
|
|
{
|
|
return qApp->styleHints()->keyboardInputInterval();
|
|
}
|
|
|
|
/*!
|
|
\property QApplication::wheelScrollLines
|
|
\brief the number of lines to scroll a widget, when the
|
|
mouse wheel is rotated.
|
|
|
|
If the value exceeds the widget's number of visible lines, the widget
|
|
should interpret the scroll operation as a single \e{page up} or
|
|
\e{page down}. If the widget is an \l{QAbstractItemView}{item view class},
|
|
then the result of scrolling one \e line depends on the setting of the
|
|
widget's \l{QAbstractItemView::verticalScrollMode()}{scroll mode}. Scroll
|
|
one \e line can mean \l{QAbstractItemView::ScrollPerItem}{scroll one item}
|
|
or \l{QAbstractItemView::ScrollPerPixel}{scroll one pixel}.
|
|
|
|
By default, this property has a value of 3.
|
|
*/
|
|
|
|
/*!
|
|
\fn void QApplication::setEffectEnabled(Qt::UIEffect effect, bool enable)
|
|
|
|
Enables the UI effect \a effect if \a enable is true, otherwise the effect
|
|
will not be used.
|
|
|
|
\note All effects are disabled on screens running at less than 16-bit color
|
|
depth.
|
|
|
|
\sa isEffectEnabled(), Qt::UIEffect, setDesktopSettingsAware()
|
|
*/
|
|
|
|
/*!
|
|
\fn bool QApplication::isEffectEnabled(Qt::UIEffect effect)
|
|
|
|
Returns true if \a effect is enabled; otherwise returns false.
|
|
|
|
By default, Qt will try to use the desktop settings. To prevent this, call
|
|
setDesktopSettingsAware(false).
|
|
|
|
\note All effects are disabled on screens running at less than 16-bit color
|
|
depth.
|
|
|
|
\sa setEffectEnabled(), Qt::UIEffect
|
|
*/
|
|
|
|
/*!
|
|
\fn void QApplication::beep()
|
|
|
|
Sounds the bell, using the default volume and sound. The function is \e not
|
|
available in Qt for Embedded Linux.
|
|
*/
|
|
|
|
/*!
|
|
\macro qApp
|
|
\relates QApplication
|
|
|
|
A global pointer referring to the unique application object. It is
|
|
equivalent to the pointer returned by the QCoreApplication::instance()
|
|
function except that, in GUI applications, it is a pointer to a
|
|
QApplication instance.
|
|
|
|
Only one application object can be created.
|
|
|
|
\sa QCoreApplication::instance()
|
|
*/
|
|
|
|
/*!
|
|
\fn QLocale QApplication::keyboardInputLocale()
|
|
\since 4.2
|
|
\obsolete
|
|
|
|
Returns the current keyboard input locale. Replaced with QInputMethod::locale()
|
|
*/
|
|
|
|
bool qt_sendSpontaneousEvent(QObject *receiver, QEvent *event)
|
|
{
|
|
return QGuiApplication::sendSpontaneousEvent(receiver, event);
|
|
}
|
|
|
|
|
|
void QApplicationPrivate::giveFocusAccordingToFocusPolicy(QWidget *widget,
|
|
Qt::FocusPolicy focusPolicy,
|
|
Qt::FocusReason focusReason)
|
|
{
|
|
QWidget *focusWidget = widget;
|
|
while (focusWidget) {
|
|
if (focusWidget->isEnabled()
|
|
&& QApplicationPrivate::shouldSetFocus(focusWidget, focusPolicy)) {
|
|
focusWidget->setFocus(focusReason);
|
|
break;
|
|
}
|
|
if (focusWidget->isWindow())
|
|
break;
|
|
focusWidget = focusWidget->parentWidget();
|
|
}
|
|
}
|
|
|
|
bool QApplicationPrivate::shouldSetFocus(QWidget *w, Qt::FocusPolicy policy)
|
|
{
|
|
QWidget *f = w;
|
|
while (f->d_func()->extra && f->d_func()->extra->focus_proxy)
|
|
f = f->d_func()->extra->focus_proxy;
|
|
|
|
if ((w->focusPolicy() & policy) != policy)
|
|
return false;
|
|
if (w != f && (f->focusPolicy() & policy) != policy)
|
|
return false;
|
|
return true;
|
|
}
|
|
|
|
void QApplicationPrivate::updateTouchPointsForWidget(QWidget *widget, QTouchEvent *touchEvent)
|
|
{
|
|
for (int i = 0; i < touchEvent->touchPoints().count(); ++i) {
|
|
QTouchEvent::TouchPoint &touchPoint = touchEvent->_touchPoints[i];
|
|
|
|
// preserve the sub-pixel resolution
|
|
QRectF rect = touchPoint.screenRect();
|
|
const QPointF screenPos = rect.center();
|
|
const QPointF delta = screenPos - screenPos.toPoint();
|
|
|
|
rect.moveCenter(widget->mapFromGlobal(screenPos.toPoint()) + delta);
|
|
touchPoint.d->rect = rect;
|
|
touchPoint.d->startPos = widget->mapFromGlobal(touchPoint.startScreenPos().toPoint()) + delta;
|
|
touchPoint.d->lastPos = widget->mapFromGlobal(touchPoint.lastScreenPos().toPoint()) + delta;
|
|
}
|
|
}
|
|
|
|
void QApplicationPrivate::initializeMultitouch()
|
|
{
|
|
initializeMultitouch_sys();
|
|
}
|
|
|
|
void QApplicationPrivate::cleanupMultitouch()
|
|
{
|
|
cleanupMultitouch_sys();
|
|
}
|
|
|
|
QWidget *QApplicationPrivate::findClosestTouchPointTarget(QTouchDevice *device, const QPointF &screenPos)
|
|
{
|
|
int closestTouchPointId = -1;
|
|
QObject *closestTarget = 0;
|
|
qreal closestDistance = qreal(0.);
|
|
QHash<ActiveTouchPointsKey, ActiveTouchPointsValue>::const_iterator it = activeTouchPoints.constBegin(),
|
|
ite = activeTouchPoints.constEnd();
|
|
while (it != ite) {
|
|
if (it.key().device == device) {
|
|
const QTouchEvent::TouchPoint &touchPoint = it->touchPoint;
|
|
qreal dx = screenPos.x() - touchPoint.screenPos().x();
|
|
qreal dy = screenPos.y() - touchPoint.screenPos().y();
|
|
qreal distance = dx * dx + dy * dy;
|
|
if (closestTouchPointId == -1 || distance < closestDistance) {
|
|
closestTouchPointId = touchPoint.id();
|
|
closestDistance = distance;
|
|
closestTarget = it.value().target.data();
|
|
}
|
|
}
|
|
++it;
|
|
}
|
|
return static_cast<QWidget *>(closestTarget);
|
|
}
|
|
|
|
class WidgetAttributeSaver
|
|
{
|
|
public:
|
|
explicit WidgetAttributeSaver(QWidget *widget, Qt::WidgetAttribute attribute, bool forcedValue)
|
|
: m_widget(widget),
|
|
m_attribute(attribute),
|
|
m_savedValue(widget->testAttribute(attribute))
|
|
{
|
|
widget->setAttribute(attribute, forcedValue);
|
|
}
|
|
|
|
~WidgetAttributeSaver()
|
|
{
|
|
m_widget->setAttribute(m_attribute, m_savedValue);
|
|
}
|
|
|
|
private:
|
|
QWidget * const m_widget;
|
|
const Qt::WidgetAttribute m_attribute;
|
|
const bool m_savedValue;
|
|
};
|
|
|
|
bool QApplicationPrivate::translateTouchToMouse(QWidget *widget, QTouchEvent *event)
|
|
{
|
|
Q_FOREACH (const QTouchEvent::TouchPoint &p, event->touchPoints()) {
|
|
const QEvent::Type eventType = (p.state() & Qt::TouchPointPressed) ? QEvent::MouseButtonPress
|
|
: (p.state() & Qt::TouchPointReleased) ? QEvent::MouseButtonRelease
|
|
: (p.state() & Qt::TouchPointMoved) ? QEvent::MouseMove
|
|
: QEvent::None;
|
|
|
|
if (eventType == QEvent::None)
|
|
continue;
|
|
|
|
const QPoint pos = widget->mapFromGlobal(p.screenPos().toPoint());
|
|
|
|
QMouseEvent mouseEvent(eventType, pos, p.screenPos().toPoint(),
|
|
Qt::LeftButton,
|
|
(eventType == QEvent::MouseButtonRelease) ? Qt::NoButton : Qt::LeftButton,
|
|
event->modifiers());
|
|
mouseEvent.setAccepted(true);
|
|
mouseEvent.setTimestamp(event->timestamp());
|
|
|
|
// Make sure our synthesized mouse event doesn't propagate
|
|
// we want to control the propagation ourself to get a chance to
|
|
// deliver a proper touch event higher up in the hierarchy if that
|
|
// widget doesn't pick up the mouse event either.
|
|
WidgetAttributeSaver saver(widget, Qt::WA_NoMousePropagation, true);
|
|
|
|
// Note it has to be a spontaneous event if we want the focus management
|
|
// and input method support to behave properly. Quite some of the code
|
|
// related to those aspect check for the spontaneous flag.
|
|
const bool res = QCoreApplication::sendSpontaneousEvent(widget, &mouseEvent);
|
|
event->setAccepted(mouseEvent.isAccepted());
|
|
|
|
if (mouseEvent.isAccepted())
|
|
return res;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
bool QApplicationPrivate::translateRawTouchEvent(QWidget *window,
|
|
QTouchDevice *device,
|
|
const QList<QTouchEvent::TouchPoint> &touchPoints,
|
|
ulong timestamp)
|
|
{
|
|
QApplicationPrivate *d = self;
|
|
typedef QPair<Qt::TouchPointStates, QList<QTouchEvent::TouchPoint> > StatesAndTouchPoints;
|
|
QHash<QWidget *, StatesAndTouchPoints> widgetsNeedingEvents;
|
|
|
|
for (int i = 0; i < touchPoints.count(); ++i) {
|
|
QTouchEvent::TouchPoint touchPoint = touchPoints.at(i);
|
|
// explicitly detach from the original touch point that we got, so even
|
|
// if the touchpoint structs are reused, we will make a copy that we'll
|
|
// deliver to the user (which might want to store the struct for later use).
|
|
touchPoint.d = touchPoint.d->detach();
|
|
|
|
// update state
|
|
QPointer<QObject> target;
|
|
ActiveTouchPointsKey touchInfoKey(device, touchPoint.id());
|
|
ActiveTouchPointsValue &touchInfo = d->activeTouchPoints[touchInfoKey];
|
|
if (touchPoint.state() == Qt::TouchPointPressed) {
|
|
if (device->type() == QTouchDevice::TouchPad) {
|
|
// on touch-pads, send all touch points to the same widget
|
|
target = d->activeTouchPoints.isEmpty()
|
|
? QPointer<QObject>()
|
|
: d->activeTouchPoints.constBegin().value().target;
|
|
}
|
|
|
|
if (!target) {
|
|
// determine which widget this event will go to
|
|
if (!window)
|
|
window = QApplication::topLevelAt(touchPoint.screenPos().toPoint());
|
|
if (!window)
|
|
continue;
|
|
target = window->childAt(window->mapFromGlobal(touchPoint.screenPos().toPoint()));
|
|
if (!target)
|
|
target = window;
|
|
}
|
|
|
|
if (device->type() == QTouchDevice::TouchScreen) {
|
|
QWidget *closestWidget = d->findClosestTouchPointTarget(device, touchPoint.screenPos());
|
|
QWidget *widget = static_cast<QWidget *>(target.data());
|
|
if (closestWidget
|
|
&& (widget->isAncestorOf(closestWidget) || closestWidget->isAncestorOf(widget))) {
|
|
target = closestWidget;
|
|
}
|
|
}
|
|
|
|
touchInfo.target = target;
|
|
} else {
|
|
target = touchInfo.target;
|
|
if (!target)
|
|
continue;
|
|
}
|
|
Q_ASSERT(target.data() != 0);
|
|
|
|
StatesAndTouchPoints &maskAndPoints = widgetsNeedingEvents[static_cast<QWidget *>(target.data())];
|
|
maskAndPoints.first |= touchPoint.state();
|
|
maskAndPoints.second.append(touchPoint);
|
|
}
|
|
|
|
if (widgetsNeedingEvents.isEmpty())
|
|
return false;
|
|
|
|
bool accepted = false;
|
|
QHash<QWidget *, StatesAndTouchPoints>::ConstIterator it = widgetsNeedingEvents.constBegin();
|
|
const QHash<QWidget *, StatesAndTouchPoints>::ConstIterator end = widgetsNeedingEvents.constEnd();
|
|
for (; it != end; ++it) {
|
|
QWidget *widget = it.key();
|
|
if (!QApplicationPrivate::tryModalHelper(widget, 0))
|
|
continue;
|
|
|
|
QEvent::Type eventType;
|
|
switch (it.value().first) {
|
|
case Qt::TouchPointPressed:
|
|
eventType = QEvent::TouchBegin;
|
|
break;
|
|
case Qt::TouchPointReleased:
|
|
eventType = QEvent::TouchEnd;
|
|
break;
|
|
case Qt::TouchPointStationary:
|
|
// don't send the event if nothing changed
|
|
continue;
|
|
default:
|
|
eventType = QEvent::TouchUpdate;
|
|
break;
|
|
}
|
|
|
|
QTouchEvent touchEvent(eventType,
|
|
device,
|
|
QApplication::keyboardModifiers(),
|
|
it.value().first,
|
|
it.value().second);
|
|
updateTouchPointsForWidget(widget, &touchEvent);
|
|
touchEvent.setTimestamp(timestamp);
|
|
touchEvent.setWindow(window->windowHandle());
|
|
touchEvent.setTarget(widget);
|
|
|
|
switch (touchEvent.type()) {
|
|
case QEvent::TouchBegin:
|
|
{
|
|
// if the TouchBegin handler recurses, we assume that means the event
|
|
// has been implicitly accepted and continue to send touch events
|
|
if (QApplication::sendSpontaneousEvent(widget, &touchEvent) && touchEvent.isAccepted()) {
|
|
accepted = true;
|
|
widget->setAttribute(Qt::WA_WState_AcceptedTouchBeginEvent);
|
|
}
|
|
break;
|
|
}
|
|
default:
|
|
if (widget->testAttribute(Qt::WA_WState_AcceptedTouchBeginEvent)) {
|
|
if (touchEvent.type() == QEvent::TouchEnd)
|
|
widget->setAttribute(Qt::WA_WState_AcceptedTouchBeginEvent, false);
|
|
if (QApplication::sendSpontaneousEvent(widget, &touchEvent) && touchEvent.isAccepted())
|
|
accepted = true;
|
|
}
|
|
break;
|
|
}
|
|
}
|
|
return accepted;
|
|
}
|
|
|
|
void QApplicationPrivate::translateTouchCancel(QTouchDevice *device, ulong timestamp)
|
|
{
|
|
QTouchEvent touchEvent(QEvent::TouchCancel, device, QApplication::keyboardModifiers());
|
|
touchEvent.setTimestamp(timestamp);
|
|
QHash<ActiveTouchPointsKey, ActiveTouchPointsValue>::const_iterator it
|
|
= self->activeTouchPoints.constBegin(), ite = self->activeTouchPoints.constEnd();
|
|
QSet<QWidget *> widgetsNeedingCancel;
|
|
while (it != ite) {
|
|
QWidget *widget = static_cast<QWidget *>(it->target.data());
|
|
if (widget)
|
|
widgetsNeedingCancel.insert(widget);
|
|
++it;
|
|
}
|
|
for (QSet<QWidget *>::const_iterator widIt = widgetsNeedingCancel.constBegin(),
|
|
widItEnd = widgetsNeedingCancel.constEnd(); widIt != widItEnd; ++widIt) {
|
|
QWidget *widget = *widIt;
|
|
touchEvent.setWindow(widget->windowHandle());
|
|
touchEvent.setTarget(widget);
|
|
QApplication::sendSpontaneousEvent(widget, &touchEvent);
|
|
}
|
|
}
|
|
|
|
void QApplicationPrivate::notifyThemeChanged()
|
|
{
|
|
QGuiApplicationPrivate::notifyThemeChanged();
|
|
clearSystemPalette();
|
|
initSystemPalette();
|
|
}
|
|
|
|
#ifndef QT_NO_DRAGANDDROP
|
|
void QApplicationPrivate::notifyDragStarted(const QDrag *drag)
|
|
{
|
|
// Prevent pickMouseReceiver() from using the widget where the drag was started after a drag operation.
|
|
QGuiApplicationPrivate::notifyDragStarted(drag);
|
|
qt_button_down = 0;
|
|
}
|
|
#endif // QT_NO_DRAGANDDROP
|
|
|
|
#ifndef QT_NO_GESTURES
|
|
QGestureManager* QGestureManager::instance()
|
|
{
|
|
QApplicationPrivate *qAppPriv = QApplicationPrivate::instance();
|
|
if (!qAppPriv)
|
|
return 0;
|
|
if (!qAppPriv->gestureManager)
|
|
qAppPriv->gestureManager = new QGestureManager(qApp);
|
|
return qAppPriv->gestureManager;
|
|
}
|
|
#endif // QT_NO_GESTURES
|
|
|
|
QPixmap QApplicationPrivate::applyQIconStyleHelper(QIcon::Mode mode, const QPixmap& base) const
|
|
{
|
|
QStyleOption opt(0);
|
|
opt.palette = QGuiApplication::palette();
|
|
return QApplication::style()->generatedIconPixmap(mode, base, &opt);
|
|
}
|
|
|
|
QT_END_NAMESPACE
|
|
|
|
#include "moc_qapplication.cpp"
|