Add resize event support to QWindow.

(cherry picked from commit 12b4e7e5a2b18cdd23f540821e1f2785f62b0b9a)

examples/opengl/hellowindow/hellowindow.cpp

@@ -34,6 +34,13 @@ void HelloWindow::mousePressEvent(QMouseEvent *)
     updateColor();
 }
 
+void HelloWindow::resizeEvent(QResizeEvent *)
+{
+    glContext()->makeCurrent();
+
+    glViewport(0, 0, geometry().width(), geometry().height());
+}
+
 void HelloWindow::updateColor()
 {
     float colors[][4] =

examples/opengl/hellowindow/hellowindow.h

@@ -13,6 +13,7 @@ public:
 
 protected:
     void mousePressEvent(QMouseEvent *);
+    void resizeEvent(QResizeEvent *);
 
 private slots:
     void render();

src/gui/kernel/kernel.pri

@@ -230,6 +230,7 @@ qpa {
                 kernel/qwindowformat_qpa.h \
                 kernel/qguiapplication_qpa.h \
                 kernel/qguiapplication_qpa_p.h \
+                kernel/qwindow_qpa_p.h \
                 kernel/qwindow_qpa.h
 
 	SOURCES += \

src/gui/kernel/qguiapplication_qpa.cpp

@@ -61,6 +61,7 @@
 
 #include <QWindowSystemInterface>
 #include "private/qwindowsysteminterface_qpa_p.h"
+#include "private/qwindow_qpa_p.h"
 
 #ifndef QT_NO_CLIPBOARD
 #include <QtGui/QClipboard>
@@ -658,8 +659,32 @@ void QGuiApplicationPrivate::processGeometryChangeEvent(QWindowSystemInterfacePr
 {
     if (e->tlw.isNull())
        return;
-    QWidget *tlw = e->tlw.data() ? e->tlw.data()->widget() : 0;
+
-    if (!tlw || !tlw->isWindow())
+    QWindow *window = e->tlw.data();
+    QWidget *tlw = window ? window->widget() : 0;
+    if (!tlw) {
+        if (window) {
+            QRect newRect = e->newGeometry;
+            QRect cr = window->geometry();
+
+            bool isResize = cr.size() != newRect.size();
+            bool isMove = cr.topLeft() != newRect.topLeft();
+            window->d_func()->geometry = newRect;
+            if (isResize) {
+                QResizeEvent e(newRect.size(), cr.size());
+                QGuiApplication::sendSpontaneousEvent(window, &e);
+            }
+
+            if (isMove) {
+                //### frame geometry
+                QMoveEvent e(newRect.topLeft(), cr.topLeft());
+                QGuiApplication::sendSpontaneousEvent(window, &e);
+            }
+        }
+        return;
+    }
+
+    if (!tlw->isWindow())
         return; //geo of native child widgets is controlled by lighthouse
                 //so we already have sent the events; besides this new rect
                 //is not mapped to parent

src/gui/kernel/qwindow_qpa.cpp

@@ -46,44 +46,13 @@
 #include "qplatformglcontext_qpa.h"
 #include "qwindowcontext_qpa.h"
 
+#include "qwindow_qpa_p.h"
 #include "qapplication_p.h"
 
 #include <QtCore/QDebug>
 
 QT_BEGIN_NAMESPACE
 
-class QWindowPrivate : public QObjectPrivate
-{
-public:
-    QWindowPrivate()
-        : QObjectPrivate()
-        , windowFlags(Qt::Window)
-        , surfaceType(QWindow::RasterSurface)
-        , platformWindow(0)
-        , visible(false)
-        , glContext(0)
-        , widget(0)
-    {
-        isWindow = true;
-    }
-
-    ~QWindowPrivate()
-    {
-
-    }
-
-    Qt::WindowFlags windowFlags;
-    QWindow::SurfaceType surfaceType;
-    QWindow *parentWindow;
-    QPlatformWindow *platformWindow;
-    bool visible;
-    QWindowFormat requestedFormat;
-    QString windowTitle;
-    QRect geometry;
-    QWindowContext *glContext;
-    QWidget *widget;
-};
-
 QWindow::QWindow(QWindow *parent)
     : QObject(*new QWindowPrivate())
 {
@@ -397,7 +366,6 @@ bool QWindow::close()
 
 void QWindow::resizeEvent(QResizeEvent *)
 {
-    qDebug() << "unimplemented:" << __FILE__ << __LINE__;
 }
 
 void QWindow::showEvent(QShowEvent *)
@@ -414,19 +382,23 @@ bool QWindow::event(QEvent *event)
 {
     switch (event->type()) {
     case QEvent::MouseMove:
-        mouseMoveEvent((QMouseEvent*)event);
+        mouseMoveEvent(static_cast<QMouseEvent*>(event));
         break;
 
     case QEvent::MouseButtonPress:
-        mousePressEvent((QMouseEvent*)event);
+        mousePressEvent(static_cast<QMouseEvent*>(event));
         break;
 
     case QEvent::MouseButtonRelease:
-        mouseReleaseEvent((QMouseEvent*)event);
+        mouseReleaseEvent(static_cast<QMouseEvent*>(event));
         break;
 
     case QEvent::MouseButtonDblClick:
-        mouseDoubleClickEvent((QMouseEvent*)event);
+        mouseDoubleClickEvent(static_cast<QMouseEvent*>(event));
+        break;
+
+    case QEvent::Resize:
+        resizeEvent(static_cast<QResizeEvent*>(event));
         break;
 
     default:

src/gui/kernel/qwindow_qpa_p.h

@@ -0,0 +1,92 @@
+/****************************************************************************
+**
+** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies).
+** All rights reserved.
+** Contact: Nokia Corporation (qt-info@nokia.com)
+**
+** This file is part of the QtGui module of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:LGPL$
+** No Commercial Usage
+** This file contains pre-release code and may not be distributed.
+** You may use this file in accordance with the terms and conditions
+** contained in the Technology Preview License Agreement accompanying
+** this package.
+**
+** GNU Lesser General Public License Usage
+** Alternatively, this file may be used under the terms of the GNU Lesser
+** General Public License version 2.1 as published by the Free Software
+** Foundation and appearing in the file LICENSE.LGPL included in the
+** packaging of this file.  Please review the following information to
+** ensure the GNU Lesser General Public License version 2.1 requirements
+** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
+**
+** In addition, as a special exception, Nokia gives you certain additional
+** rights.  These rights are described in the Nokia Qt LGPL Exception
+** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
+**
+** If you have questions regarding the use of this file, please contact
+** Nokia at qt-info@nokia.com.
+**
+**
+**
+**
+**
+**
+**
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef QWINDOW_QPA_P_H
+#define QWINDOW_QPA_P_H
+
+#include <QtGui/qwindow_qpa.h>
+
+#include <QtCore/private/qobject_p.h>
+
+QT_BEGIN_HEADER
+
+QT_BEGIN_NAMESPACE
+
+QT_MODULE(Gui)
+
+class QWindowPrivate : public QObjectPrivate
+{
+public:
+    QWindowPrivate()
+        : QObjectPrivate()
+        , windowFlags(Qt::Window)
+        , surfaceType(QWindow::RasterSurface)
+        , platformWindow(0)
+        , visible(false)
+        , glContext(0)
+        , widget(0)
+    {
+        isWindow = true;
+    }
+
+    ~QWindowPrivate()
+    {
+
+    }
+
+    Qt::WindowFlags windowFlags;
+    QWindow::SurfaceType surfaceType;
+    QWindow *parentWindow;
+    QPlatformWindow *platformWindow;
+    bool visible;
+    QWindowFormat requestedFormat;
+    QString windowTitle;
+    QRect geometry;
+    QWindowContext *glContext;
+    QWidget *widget;
+};
+
+
+QT_END_NAMESPACE
+
+QT_END_HEADER
+
+#endif // QWINDOW_QPA_P_H