37842c2fdb
Replace <QtWidgets> includes by class includes, remove tests that do not compile. Change-Id: I52837e8c567dc8ac365c7d43c37beb9a368f6f72 Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
252 lines
8.9 KiB
C++
252 lines
8.9 KiB
C++
/****************************************************************************
|
|
**
|
|
** Copyright (C) 2013 Digia Plc and/or its subsidiary(-ies).
|
|
** Contact: http://www.qt-project.org/legal
|
|
**
|
|
** This file is part of the test suite of the Qt Toolkit.
|
|
**
|
|
** $QT_BEGIN_LICENSE:LGPL$
|
|
** Commercial License Usage
|
|
** Licensees holding valid commercial Qt licenses may use this file in
|
|
** accordance with the commercial license agreement provided with the
|
|
** Software or, alternatively, in accordance with the terms contained in
|
|
** a written agreement between you and Digia. For licensing terms and
|
|
** conditions see http://qt.digia.com/licensing. For further information
|
|
** use the contact form at http://qt.digia.com/contact-us.
|
|
**
|
|
** 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, Digia gives you certain additional
|
|
** rights. These rights are described in the Digia Qt LGPL Exception
|
|
** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
|
|
**
|
|
** GNU General Public License Usage
|
|
** Alternatively, this file may be used under the terms of the GNU
|
|
** General Public License version 3.0 as published by the Free Software
|
|
** Foundation and appearing in the file LICENSE.GPL included in the
|
|
** packaging of this file. Please review the following information to
|
|
** ensure the GNU General Public License version 3.0 requirements will be
|
|
** met: http://www.gnu.org/copyleft/gpl.html.
|
|
**
|
|
**
|
|
** $QT_END_LICENSE$
|
|
**
|
|
****************************************************************************/
|
|
|
|
#include <QApplication>
|
|
#include <QSlider>
|
|
#include <QScrollArea>
|
|
#include <QScrollBar>
|
|
#include <QMainWindow>
|
|
#include <QLabel>
|
|
#include <QPushButton>
|
|
#include <QVBoxLayout>
|
|
#include <QGestureEvent>
|
|
#include <QPanGesture>
|
|
#include <QDebug>
|
|
|
|
#include "mousepangesturerecognizer.h"
|
|
|
|
class ScrollArea : public QScrollArea
|
|
{
|
|
Q_OBJECT
|
|
public:
|
|
ScrollArea(QWidget *parent = 0)
|
|
: QScrollArea(parent), outside(false)
|
|
{
|
|
viewport()->grabGesture(Qt::PanGesture, Qt::ReceivePartialGestures);
|
|
}
|
|
|
|
protected:
|
|
bool viewportEvent(QEvent *event)
|
|
{
|
|
if (event->type() == QEvent::Gesture) {
|
|
gestureEvent(static_cast<QGestureEvent *>(event));
|
|
return true;
|
|
} else if (event->type() == QEvent::GestureOverride) {
|
|
QGestureEvent *ge = static_cast<QGestureEvent *>(event);
|
|
if (QPanGesture *pan = static_cast<QPanGesture *>(ge->gesture(Qt::PanGesture)))
|
|
if (pan->state() == Qt::GestureStarted) {
|
|
outside = false;
|
|
}
|
|
}
|
|
return QScrollArea::viewportEvent(event);
|
|
}
|
|
void gestureEvent(QGestureEvent *event)
|
|
{
|
|
QPanGesture *pan = static_cast<QPanGesture *>(event->gesture(Qt::PanGesture));
|
|
if (pan) {
|
|
switch(pan->state()) {
|
|
case Qt::GestureStarted: qDebug() << this << "Pan: started"; break;
|
|
case Qt::GestureFinished: qDebug() << this << "Pan: finished"; break;
|
|
case Qt::GestureCanceled: qDebug() << this << "Pan: canceled"; break;
|
|
case Qt::GestureUpdated: break;
|
|
default: qDebug() << this << "Pan: <unknown state>"; break;
|
|
}
|
|
|
|
if (pan->state() == Qt::GestureStarted)
|
|
outside = false;
|
|
event->ignore();
|
|
event->ignore(pan);
|
|
if (outside)
|
|
return;
|
|
|
|
const QPointF delta = pan->delta();
|
|
const QPointF totalOffset = pan->offset();
|
|
QScrollBar *vbar = verticalScrollBar();
|
|
QScrollBar *hbar = horizontalScrollBar();
|
|
|
|
if ((vbar->value() == vbar->minimum() && totalOffset.y() > 10) ||
|
|
(vbar->value() == vbar->maximum() && totalOffset.y() < -10)) {
|
|
outside = true;
|
|
return;
|
|
}
|
|
if ((hbar->value() == hbar->minimum() && totalOffset.x() > 10) ||
|
|
(hbar->value() == hbar->maximum() && totalOffset.x() < -10)) {
|
|
outside = true;
|
|
return;
|
|
}
|
|
vbar->setValue(vbar->value() - delta.y());
|
|
hbar->setValue(hbar->value() - delta.x());
|
|
event->accept(pan);
|
|
}
|
|
}
|
|
|
|
private:
|
|
bool outside;
|
|
};
|
|
|
|
class Slider : public QSlider
|
|
{
|
|
public:
|
|
Slider(Qt::Orientation orientation, QWidget *parent = 0)
|
|
: QSlider(orientation, parent)
|
|
{
|
|
grabGesture(Qt::PanGesture);
|
|
}
|
|
protected:
|
|
bool event(QEvent *event)
|
|
{
|
|
if (event->type() == QEvent::Gesture) {
|
|
gestureEvent(static_cast<QGestureEvent *>(event));
|
|
return true;
|
|
}
|
|
return QSlider::event(event);
|
|
}
|
|
void gestureEvent(QGestureEvent *event)
|
|
{
|
|
QPanGesture *pan = static_cast<QPanGesture *>(event->gesture(Qt::PanGesture));
|
|
if (pan) {
|
|
switch (pan->state()) {
|
|
case Qt::GestureStarted: qDebug() << this << "Pan: started"; break;
|
|
case Qt::GestureFinished: qDebug() << this << "Pan: finished"; break;
|
|
case Qt::GestureCanceled: qDebug() << this << "Pan: canceled"; break;
|
|
case Qt::GestureUpdated: break;
|
|
default: qDebug() << this << "Pan: <unknown state>"; break;
|
|
}
|
|
|
|
if (pan->state() == Qt::GestureStarted)
|
|
outside = false;
|
|
event->ignore();
|
|
event->ignore(pan);
|
|
if (outside)
|
|
return;
|
|
const QPointF delta = pan->delta();
|
|
const QPointF totalOffset = pan->offset();
|
|
if (orientation() == Qt::Horizontal) {
|
|
if ((value() == minimum() && totalOffset.x() < -10) ||
|
|
(value() == maximum() && totalOffset.x() > 10)) {
|
|
outside = true;
|
|
return;
|
|
}
|
|
if (totalOffset.y() < 40 && totalOffset.y() > -40) {
|
|
setValue(value() + delta.x());
|
|
event->accept(pan);
|
|
} else {
|
|
outside = true;
|
|
}
|
|
} else if (orientation() == Qt::Vertical) {
|
|
if ((value() == maximum() && totalOffset.y() < -10) ||
|
|
(value() == minimum() && totalOffset.y() > 10)) {
|
|
outside = true;
|
|
return;
|
|
}
|
|
if (totalOffset.x() < 40 && totalOffset.x() > -40) {
|
|
setValue(value() - delta.y());
|
|
event->accept(pan);
|
|
} else {
|
|
outside = true;
|
|
}
|
|
}
|
|
}
|
|
}
|
|
private:
|
|
bool outside;
|
|
};
|
|
|
|
class MainWindow : public QMainWindow
|
|
{
|
|
public:
|
|
MainWindow()
|
|
{
|
|
rootScrollArea = new ScrollArea;
|
|
rootScrollArea->setObjectName(QLatin1String("rootScrollArea"));
|
|
setCentralWidget(rootScrollArea);
|
|
|
|
QWidget *root = new QWidget;
|
|
root->setFixedSize(3000, 3000);
|
|
rootScrollArea->setWidget(root);
|
|
|
|
Slider *verticalSlider = new Slider(Qt::Vertical, root);
|
|
verticalSlider->setObjectName(QLatin1String("verticalSlider"));
|
|
verticalSlider ->move(650, 1100);
|
|
Slider *horizontalSlider = new Slider(Qt::Horizontal, root);
|
|
horizontalSlider->setObjectName(QLatin1String("horizontalSlider"));
|
|
horizontalSlider ->move(600, 1000);
|
|
|
|
childScrollArea = new ScrollArea(root);
|
|
childScrollArea->setObjectName(QLatin1String("childScrollArea"));
|
|
childScrollArea->move(500, 500);
|
|
QWidget *w = new QWidget;
|
|
w->setMinimumWidth(700);
|
|
QVBoxLayout *l = new QVBoxLayout(w);
|
|
l->setMargin(20);
|
|
for (int i = 0; i < 100; ++i) {
|
|
QWidget *w = new QWidget;
|
|
QHBoxLayout *ll = new QHBoxLayout(w);
|
|
ll->addWidget(new QLabel(QString("Label %1").arg(i)));
|
|
ll->addWidget(new QPushButton(QString("Button %1").arg(i)));
|
|
l->addWidget(w);
|
|
}
|
|
childScrollArea->setWidget(w);
|
|
#if defined(Q_OS_WIN)
|
|
// Windows can force Qt to create a native window handle for an
|
|
// intermediate widget and that will block gesture to get touch events.
|
|
// So this hack to make sure gestures get all touch events they need.
|
|
foreach (QObject *w, children())
|
|
if (w->isWidgetType())
|
|
static_cast<QWidget *>(w)->setAttribute(Qt::WA_AcceptTouchEvents);
|
|
#endif
|
|
}
|
|
private:
|
|
ScrollArea *rootScrollArea;
|
|
ScrollArea *childScrollArea;
|
|
};
|
|
|
|
int main(int argc, char **argv)
|
|
{
|
|
QApplication app(argc, argv);
|
|
QGestureRecognizer::registerRecognizer(new MousePanGestureRecognizer);
|
|
MainWindow w;
|
|
w.show();
|
|
return app.exec();
|
|
}
|
|
|
|
#include "main.moc"
|