37842c2fdb
Replace <QtWidgets> includes by class includes, remove tests that do not compile. Change-Id: I52837e8c567dc8ac365c7d43c37beb9a368f6f72 Reviewed-by: Joerg Bornemann <joerg.bornemann@digia.com>
240 lines
7.8 KiB
C++
240 lines
7.8 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 test suite 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
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** 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 <QApplication>
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#include <QMainWindow>
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#include <QGraphicsScene>
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#include <QGraphicsView>
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#include <QScrollBar>
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#include <QImageReader>
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#include <QVBoxLayout>
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#include <QGestureEvent>
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#include <QDir>
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#include <QFileDialog>
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#include "imageitem.h"
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#include "gestures.h"
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#include "mousepangesturerecognizer.h"
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class GraphicsView : public QGraphicsView
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{
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public:
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GraphicsView(QGraphicsScene *scene, QWidget *parent = 0)
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: QGraphicsView(scene, parent)
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{
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}
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protected:
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bool viewportEvent(QEvent *event)
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{
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if (event->type() == QEvent::Gesture) {
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QGestureEvent *ge = static_cast<QGestureEvent *>(event);
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if (QPanGesture *pan = static_cast<QPanGesture *>(ge->gesture(Qt::PanGesture))) {
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switch (pan->state()) {
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case Qt::GestureStarted: qDebug("view: Pan: started"); break;
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case Qt::GestureFinished: qDebug("view: Pan: finished"); break;
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case Qt::GestureCanceled: qDebug("view: Pan: canceled"); break;
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case Qt::GestureUpdated: break;
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default: qDebug("view: Pan: <unknown state>"); break;
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}
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const QPointF delta = pan->delta();
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QScrollBar *vbar = verticalScrollBar();
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QScrollBar *hbar = horizontalScrollBar();
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vbar->setValue(vbar->value() - delta.y());
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hbar->setValue(hbar->value() - delta.x());
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ge->accept(pan);
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return true;
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}
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}
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return QGraphicsView::viewportEvent(event);
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}
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};
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class StandardGestures : public QWidget
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{
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public:
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StandardGestures(QWidget *parent = 0)
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: QWidget(parent)
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{
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scene = new QGraphicsScene(this);
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scene->setSceneRect(-2000, -2000, 4000, 4000);
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view = new QGraphicsView(scene, 0);
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QVBoxLayout *l = new QVBoxLayout(this);
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l->addWidget(view);
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}
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QGraphicsScene *scene;
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QGraphicsView *view;
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};
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class GlobalViewGestures : public QWidget
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{
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Q_OBJECT
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public:
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GlobalViewGestures(QWidget *parent = 0)
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: QWidget(parent)
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{
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scene = new QGraphicsScene(this);
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scene->setSceneRect(-2000, -2000, 4000, 4000);
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view = new GraphicsView(scene, 0);
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view->viewport()->grabGesture(Qt::PanGesture);
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view->viewport()->grabGesture(ThreeFingerSlideGesture::Type);
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QVBoxLayout *l = new QVBoxLayout(this);
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l->addWidget(view);
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}
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QGraphicsScene *scene;
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QGraphicsView *view;
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};
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class GraphicsItemGestures : public QWidget
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{
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Q_OBJECT
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public:
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GraphicsItemGestures(QWidget *parent = 0)
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: QWidget(parent)
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{
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scene = new QGraphicsScene(this);
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scene->setSceneRect(-2000, -2000, 4000, 4000);
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view = new QGraphicsView(scene, 0);
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view->viewport()->grabGesture(Qt::PanGesture);
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view->viewport()->grabGesture(ThreeFingerSlideGesture::Type);
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QVBoxLayout *l = new QVBoxLayout(this);
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l->addWidget(view);
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}
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QGraphicsScene *scene;
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QGraphicsView *view;
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};
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class MainWindow : public QMainWindow
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{
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public:
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MainWindow();
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void setDirectory(const QString &path);
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private:
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QTabWidget *tabWidget;
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StandardGestures *standardGestures;
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GlobalViewGestures *globalViewGestures;
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GraphicsItemGestures *graphicsItemGestures;
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};
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MainWindow::MainWindow()
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{
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(void)QGestureRecognizer::registerRecognizer(new MousePanGestureRecognizer);
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ThreeFingerSlideGesture::Type = QGestureRecognizer::registerRecognizer(new ThreeFingerSlideGestureRecognizer);
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tabWidget = new QTabWidget;
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standardGestures = new StandardGestures;
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tabWidget->addTab(standardGestures, "Standard gestures");
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globalViewGestures = new GlobalViewGestures;
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tabWidget->addTab(globalViewGestures , "Global gestures");
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graphicsItemGestures = new GraphicsItemGestures;
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tabWidget->addTab(graphicsItemGestures, "Graphics item gestures");
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setCentralWidget(tabWidget);
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}
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void MainWindow::setDirectory(const QString &path)
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{
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QDir dir(path);
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QStringList files = dir.entryList(QDir::Files | QDir::Readable | QDir::NoDotAndDotDot);
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foreach(const QString &file, files) {
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QImageReader img(path + QLatin1String("/")+file);
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QImage image = img.read();
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if (!image.isNull()) {
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{
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ImageItem *item = new ImageItem(image);
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item->setPos(0, 0);
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item->setFlags(QGraphicsItem::ItemIsMovable);
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standardGestures->scene->addItem(item);
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}
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{
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ImageItem *item = new ImageItem(image);
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item->setPos(0, 0);
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item->setFlags(QGraphicsItem::ItemIsMovable);
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globalViewGestures->scene->addItem(item);
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}
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{
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GestureImageItem *item = new GestureImageItem(image);
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item->setPos(0, 0);
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item->setFlags(QGraphicsItem::ItemIsMovable);
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graphicsItemGestures->scene->addItem(item);
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}
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}
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}
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{
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QList<QGraphicsItem*> items = standardGestures->scene->items();
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if (!items.isEmpty())
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standardGestures->view->ensureVisible(items.at(0));
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}
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{
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QList<QGraphicsItem*> items = globalViewGestures->scene->items();
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if (!items.isEmpty())
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globalViewGestures->view->ensureVisible(items.at(0));
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}
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{
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QList<QGraphicsItem*> items = graphicsItemGestures->scene->items();
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if (!items.isEmpty())
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graphicsItemGestures->view->ensureVisible(items.at(0));
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}
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}
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int main(int argc, char **argv)
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{
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QApplication app(argc, argv);
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MainWindow window;
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if (QApplication::arguments().size() > 1)
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window.setDirectory(QApplication::arguments().at(1));
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else
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window.setDirectory(QFileDialog::getExistingDirectory(0, "Select image folder"));
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window.show();
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return app.exec();
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}
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#include "main.moc"
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