add widget mousebuttons example 'mousetester'.
This is an xev-like program. A user clicks a mouse button inside the Window, and the program displays (a) the "raw" button number; (b) the corresponding Qt::MouseButton name; and (c) the type of mouse Event. Task-number: QTBUG-24112 Change-Id: I8a76ff37b5b85639f662706072cc4a2ce490754b Reviewed-by: Casper van Donderen <casper.vandonderen@nokia.com>
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doc/src/examples/widgets/mousebuttons.qdoc
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94
doc/src/examples/widgets/mousebuttons.qdoc
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/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Copyright (C) 2012 Rick Stockton <rickstockton@reno-computerhelp.com>
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the documentation of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:FDL$
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** GNU Free Documentation License
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** Alternatively, this file may be used under the terms of the GNU Free
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** Documentation License version 1.3 as published by the Free Software
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** Foundation and appearing in the file included in the packaging of
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** this file.
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**
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** Other Usage
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** Alternatively, this file may be used in accordance with the terms
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** and conditions contained in a signed written agreement between you
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** and Nokia.
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**
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**
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**
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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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/*!
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\example widgets/mousebuttons/buttontester
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\title Mouse Button Tester
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\brief The 'Mouse Button Tester' example demonstrates how to reimplement
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mouse events within a custom class. You can also use this program to
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verify that Qt is actually receiving mouse events from your mouse.
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Many 'gamer' mouse devices are configured with high-numbered "buttons"
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sending text shortcuts for certain games. With such a mouse, no mouse
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button events occur: The "mouse" sends keystrokes, and the
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'Mouse Button Tester' Window will not see the event. Receving no event,
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it will not repaint the Window with new text describing a \button event.
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And so, in addition to it's use as Qt example code, the program may be
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useful s a mouse device tester. Note that there is another example
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muouse buttons example which provides the same function, written in QML.
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This program (the Widget-based example) consists of three classes,
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in addition to the main() parent program:
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\list
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\o \c A QPushButton, "Quit".
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\o \c ButtonTester. This is derived from Qt's TextArea class, for
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purpose of customizing/re-implementing the mouse and wheel event
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member functions.
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\o \c A simple QVBoxLayout layout.
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\endlist
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First we will review the main program, with it's layout and "Quit"
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QPushButton. Then we will take a look at the \c ButtonTester class.
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\section1 The Main Program
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Note that the QPushButton, "Quit", is defined directly within the main()
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program, rather than another class. This is a correct way of defining a
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"Quit" QPushButton: A "Quit" Button defined inside another
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class would result in the destructor of that second class being
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called twice. This "Quit" Button uses the traditional Signal/Slot
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connection to invoke termination of the QApp, which will properly destroy
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its child classes \before terminating itself.
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The remainder of the main() program is concerned with defining the layout,
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and applying a minimum size to the customized ButtonTester.
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\section1 ButtonTester Class Definition
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The \c ButtonTester class inherits from QTextEdit, and listens for
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mouse events on all possible Qt::MouseButton values. It also listens for
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wheel events from the mouse, and indicates the direction of wheel motion
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("up", down", "left", or "right"). It prints short debug messages into
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the Window, and also on the console QDebug() stream, when mouse button
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and wheel events occur. Our reimplementation of mousePressEvent(),
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mouseReleaseEvent(), mouseDoubleClickEvent(), and wheelEvent() "drive"
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the program; the other functions simply convert the Qt::MouseButton
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values into text strings.
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You should call the ignore() function on any mouse event (or other event)
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which your widget-based classes do not use and consume. This function
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assures that Qt will propagate the event through each parent widget,
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until it is used or propagated to the Window Manager. (Qt attempts to do
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this automatically, but it is better programming practice to explicitly
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invoke the function.)
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\image widgets/mousebutton-buttontester.png
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*/
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BIN
doc/src/images/widgets/mousebutton-buttontester.png
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doc/src/images/widgets/mousebutton-buttontester.png
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examples/widgets/mousebuttons/buttontester.cpp
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examples/widgets/mousebuttons/buttontester.cpp
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/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Copyright (C) 2012 Rick Stockton <rickstockton@reno-computerhelp.com>
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:BSD$
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** You may use this file under the terms of the BSD license as follows:
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|
**
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|
** "Redistribution and use in source and binary forms, with or without
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|
** modification, are permitted provided that the following conditions are
|
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|
** met:
|
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|
** * Redistributions of source code must retain the above copyright
|
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|
** notice, this list of conditions and the following disclaimer.
|
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|
** * Redistributions in binary form must reproduce the above copyright
|
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|
** notice, this list of conditions and the following disclaimer in
|
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|
** the documentation and/or other materials provided with the
|
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|
** distribution.
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|
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
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|
** the names of its contributors may be used to endorse or promote
|
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|
** products derived from this software without specific prior written
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|
** permission.
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|
**
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** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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|
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
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|
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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|
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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|
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
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|
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
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|
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#include "buttontester.h"
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void ButtonTester::mousePressEvent(QMouseEvent *e)
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{
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int j = ButtonTester::buttonByNumber (e->button());
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QString result = "Mouse Press: raw button=" + QString::number(j) + " Qt=" + enumNameFromValue(e->button());
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qDebug() << result;
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this->setText(result);
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if (j == 2) {
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this->repaint();
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}
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}
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void ButtonTester::mouseReleaseEvent(QMouseEvent *e)
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{
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int j = ButtonTester::buttonByNumber (e->button());
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QString result = "Mouse Release: raw button=" + QString::number(j) + " Qt=" + enumNameFromValue(e->button());
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qDebug() << result;
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this->setText(result);
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}
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void ButtonTester::mouseDoubleClickEvent(QMouseEvent *e)
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{
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int j = ButtonTester::buttonByNumber (e->button());
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QString result = "Mouse DoubleClick: raw button=" + QString::number(j) + " Qt=" + enumNameFromValue(e->button());
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qDebug() << result;
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this->setText(result);
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}
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void ButtonTester::wheelEvent (QWheelEvent *e)
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{
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QString result;
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if (e->delta() > 0) {
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if (e->orientation() == Qt::Vertical) {
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result = "Mouse Wheel Event: UP";
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} else {
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result = "Mouse Wheel Event: LEFT";
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}
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} else if (e->delta() < 0) {
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if (e->orientation() == Qt::Vertical) {
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result = "Mouse Wheel Event: DOWN";
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} else {
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result = "Mouse Wheel Event: RIGHT";
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}
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}
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qDebug() << result;
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this->setText(result);
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}
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int ButtonTester::buttonByNumber(const Qt::MouseButton button)
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{
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if (button == Qt::NoButton) return 0;
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if (button == Qt::LeftButton) return 1;
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if (button == Qt::RightButton) return 2;
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if (button == Qt::MiddleButton) return 3;
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/* Please note that Qt Button #4 corresponds to button #8 on all
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* platforms which EMULATE wheel events by creating button events
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* (Button #4 = Scroll Up; Button #5 = Scroll Down; Button #6 = Scroll
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* Left; and Button #7 = Scroll Right.) This includes X11, with both
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* Xlib and XCB. So, the "raw button" for "Qt::BackButton" is
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* usually described as "Button #8".
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* If your platform supports "smooth scrolling", then, for the cases of
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* Qt::BackButton and higher, this program will show "raw button" with a
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* value which is too large. Subtract 4 to get the correct button ID for
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* your platform.
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*/
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if (button == Qt::BackButton) return 8;
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if (button == Qt::ForwardButton) return 9;
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if (button == Qt::TaskButton) return 10;
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if (button == Qt::ExtraButton4) return 11;
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if (button == Qt::ExtraButton5) return 12;
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if (button == Qt::ExtraButton6) return 13;
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if (button == Qt::ExtraButton7) return 14;
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if (button == Qt::ExtraButton8) return 15;
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if (button == Qt::ExtraButton9) return 16;
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if (button == Qt::ExtraButton10) return 17;
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if (button == Qt::ExtraButton11) return 18;
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if (button == Qt::ExtraButton12) return 19;
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if (button == Qt::ExtraButton13) return 20;
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if (button == Qt::ExtraButton14) return 21;
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if (button == Qt::ExtraButton15) return 22;
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if (button == Qt::ExtraButton16) return 23;
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if (button == Qt::ExtraButton17) return 24;
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if (button == Qt::ExtraButton18) return 25;
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if (button == Qt::ExtraButton19) return 26;
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if (button == Qt::ExtraButton20) return 27;
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if (button == Qt::ExtraButton21) return 28;
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if (button == Qt::ExtraButton22) return 29;
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if (button == Qt::ExtraButton23) return 30;
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if (button == Qt::ExtraButton24) return 31;
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qDebug("QMouseShortcutEntry::addShortcut contained Invalid Qt::MouseButton value");
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return 0;
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}
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QString ButtonTester::enumNameFromValue(const Qt::MouseButton button)
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{
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if (button == Qt::NoButton) return "NoButton";
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if (button == Qt::LeftButton) return "LeftButton";
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if (button == Qt::RightButton) return "RightButton";
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if (button == Qt::MiddleButton) return "MiddleButton";
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if (button == Qt::BackButton) return "BackButton";
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if (button == Qt::ForwardButton) return "ForwardButton";
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if (button == Qt::TaskButton) return "TaskButton";
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if (button == Qt::ExtraButton4) return "ExtraButton4";
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if (button == Qt::ExtraButton5) return "ExtraButton5";
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if (button == Qt::ExtraButton6) return "ExtraButton6";
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if (button == Qt::ExtraButton7) return "ExtraButton7";
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if (button == Qt::ExtraButton8) return "ExtraButton8";
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if (button == Qt::ExtraButton9) return "ExtraButton9";
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if (button == Qt::ExtraButton10) return "ExtraButton10";
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if (button == Qt::ExtraButton11) return "ExtraButton11";
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if (button == Qt::ExtraButton12) return "ExtraButton12";
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if (button == Qt::ExtraButton13) return "ExtraButton13";
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if (button == Qt::ExtraButton14) return "ExtraButton14";
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if (button == Qt::ExtraButton15) return "ExtraButton15";
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if (button == Qt::ExtraButton16) return "ExtraButton16";
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if (button == Qt::ExtraButton17) return "ExtraButton17";
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if (button == Qt::ExtraButton18) return "ExtraButton18";
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if (button == Qt::ExtraButton19) return "ExtraButton19";
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if (button == Qt::ExtraButton20) return "ExtraButton20";
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if (button == Qt::ExtraButton21) return "ExtraButton21";
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if (button == Qt::ExtraButton22) return "ExtraButton22";
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if (button == Qt::ExtraButton23) return "ExtraButton23";
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if (button == Qt::ExtraButton24) return "ExtraButton24";
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qDebug("QMouseShortcutEntry::addShortcut contained Invalid Qt::MouseButton value");
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return "NoButton";
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}
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64
examples/widgets/mousebuttons/buttontester.h
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64
examples/widgets/mousebuttons/buttontester.h
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/****************************************************************************
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**
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** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
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** Copyright (C) 2012 Rick Stockton <rickstockton@reno-computerhelp.com>
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** Contact: http://www.qt-project.org/
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**
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** This file is part of the examples of the Qt Toolkit.
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**
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|
** $QT_BEGIN_LICENSE:BSD$
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|
** You may use this file under the terms of the BSD license as follows:
|
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|
**
|
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|
** "Redistribution and use in source and binary forms, with or without
|
||||||
|
** modification, are permitted provided that the following conditions are
|
||||||
|
** met:
|
||||||
|
** * Redistributions of source code must retain the above copyright
|
||||||
|
** notice, this list of conditions and the following disclaimer.
|
||||||
|
** * Redistributions in binary form must reproduce the above copyright
|
||||||
|
** notice, this list of conditions and the following disclaimer in
|
||||||
|
** the documentation and/or other materials provided with the
|
||||||
|
** distribution.
|
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|
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
|
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|
** the names of its contributors may be used to endorse or promote
|
||||||
|
** products derived from this software without specific prior written
|
||||||
|
** permission.
|
||||||
|
**
|
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|
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||||
|
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||||
|
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||||
|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
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|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||||
|
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
|
||||||
|
**
|
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|
** $QT_END_LICENSE$
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|
**
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|
****************************************************************************/
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#ifndef BUTTONTESTER_H
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#define BUTTONTESTER_H
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#include <QtWidgets>
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#include <QTextEdit>
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#include <QString>
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#include <QDebug>
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#include <QMouseEvent>
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#include <QWheelEvent>
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class ButtonTester : public QTextEdit
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{
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Q_OBJECT
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protected:
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void mousePressEvent(QMouseEvent *event);
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void mouseReleaseEvent(QMouseEvent *event);
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void mouseDoubleClickEvent(QMouseEvent *event);
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void wheelEvent(QWheelEvent * event);
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int buttonByNumber(const Qt::MouseButton button);
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QString enumNameFromValue(const Qt::MouseButton button);
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};
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#endif // BUTTONTESTER_H
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18
examples/widgets/mousebuttons/buttontester.pro
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18
examples/widgets/mousebuttons/buttontester.pro
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TEMPLATE = app
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TARGET = buttontester
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TEMPLATE = app
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SOURCES += \
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main.cpp\
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buttontester.cpp \
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HEADERS += \
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buttontester.h \
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# install
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target.path = $$[QT_INSTALL_EXAMPLES]/qtbase/examples/widgets/mousebuttons
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||||||
|
sources.files = $$SOURCES $$HEADERS $$RESOURCES $$FORMS buttontester.pro
|
||||||
|
sources.path = $$[QT_INSTALL_EXAMPLES]/qtbase/examples/widgets/mousebuttons
|
||||||
|
INSTALLS += target sources
|
||||||
|
QT += core widgets
|
66
examples/widgets/mousebuttons/main.cpp
Normal file
66
examples/widgets/mousebuttons/main.cpp
Normal file
@ -0,0 +1,66 @@
|
|||||||
|
/****************************************************************************
|
||||||
|
**
|
||||||
|
** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
|
||||||
|
** Copyright (C) 2012 Rick Stockton <rickstockton@reno-computerhelp.com>
|
||||||
|
** Contact: http://www.qt-project.org/
|
||||||
|
**
|
||||||
|
** This file is part of the examples of the Qt Toolkit.
|
||||||
|
**
|
||||||
|
** $QT_BEGIN_LICENSE:BSD$
|
||||||
|
** You may use this file under the terms of the BSD license as follows:
|
||||||
|
**
|
||||||
|
** "Redistribution and use in source and binary forms, with or without
|
||||||
|
** modification, are permitted provided that the following conditions are
|
||||||
|
** met:
|
||||||
|
** * Redistributions of source code must retain the above copyright
|
||||||
|
** notice, this list of conditions and the following disclaimer.
|
||||||
|
** * Redistributions in binary form must reproduce the above copyright
|
||||||
|
** notice, this list of conditions and the following disclaimer in
|
||||||
|
** the documentation and/or other materials provided with the
|
||||||
|
** distribution.
|
||||||
|
** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
|
||||||
|
** the names of its contributors may be used to endorse or promote
|
||||||
|
** products derived from this software without specific prior written
|
||||||
|
** permission.
|
||||||
|
**
|
||||||
|
** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
|
||||||
|
** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
|
||||||
|
** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
|
||||||
|
** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
|
||||||
|
** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
|
||||||
|
** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
|
||||||
|
** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
|
||||||
|
** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
|
||||||
|
** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
|
||||||
|
** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
|
||||||
|
** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
|
||||||
|
**
|
||||||
|
** $QT_END_LICENSE$
|
||||||
|
**
|
||||||
|
****************************************************************************/
|
||||||
|
|
||||||
|
#include "buttontester.h"
|
||||||
|
#include <QtGui>
|
||||||
|
|
||||||
|
int main(int argv, char **args)
|
||||||
|
{
|
||||||
|
QApplication app(argv, args);
|
||||||
|
|
||||||
|
ButtonTester *testArea = new ButtonTester;
|
||||||
|
testArea->setMinimumSize(500, 350);
|
||||||
|
testArea->setText("To test your mouse with Qt, press buttons in this area.\nYou may also scroll or tilt your mouse wheel.");
|
||||||
|
QPushButton *quitButton = new QPushButton("Quit");
|
||||||
|
|
||||||
|
QObject::connect(quitButton, SIGNAL(clicked()), qApp, SLOT(quit()));
|
||||||
|
|
||||||
|
QVBoxLayout *layout = new QVBoxLayout;
|
||||||
|
layout->addWidget(testArea);
|
||||||
|
layout->addWidget(quitButton);
|
||||||
|
|
||||||
|
QWidget window;
|
||||||
|
window.setLayout(layout);
|
||||||
|
window.setWindowTitle("Mouse Button Tester");
|
||||||
|
window.show();
|
||||||
|
|
||||||
|
return app.exec();
|
||||||
|
}
|
@ -12,6 +12,7 @@ SUBDIRS = analogclock \
|
|||||||
imageviewer \
|
imageviewer \
|
||||||
lineedits \
|
lineedits \
|
||||||
movie \
|
movie \
|
||||||
|
mousebuttons \
|
||||||
orientation \
|
orientation \
|
||||||
scribble \
|
scribble \
|
||||||
shapedclock \
|
shapedclock \
|
||||||
|
Loading…
x
Reference in New Issue
Block a user