70a218b90b
Change-Id: I092a26ef38b08c52d84adb027a1b1bdee8cc7f6b
Reviewed-by: Simon Hausmann <simon.hausmann@qt.io>
(cherry picked from commit ce187c4f0e)
Reviewed-by: Alexandru Croitor <alexandru.croitor@qt.io>
614 lines
21 KiB
C++
614 lines
21 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2016 The Qt Company Ltd.
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** Contact: https://www.qt.io/licensing/
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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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** $QT_BEGIN_LICENSE:GPL-EXCEPT$
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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 The Qt Company. For licensing terms
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** and conditions see https://www.qt.io/terms-conditions. For further
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** information use the contact form at https://www.qt.io/contact-us.
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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 as published by the Free Software
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** Foundation with exceptions as appearing in the file LICENSE.GPL3-EXCEPT
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** included in the packaging of this file. Please review the following
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** information to ensure the GNU General Public License requirements will
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** be met: https://www.gnu.org/licenses/gpl-3.0.html.
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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 <QGesture>
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#include <QLabel>
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#include <QMenu>
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#include <QMenuBar>
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#include <QAction>
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#include <QMainWindow>
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#include <QSplitter>
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#include <QStatusBar>
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#include <QToolBar>
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#include <QVector>
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#include <QCommandLineOption>
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#include <QCommandLineParser>
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#include <QPlainTextEdit>
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#include <QPainter>
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#include <QPainterPath>
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#include <QPaintEvent>
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#include <QScreen>
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#include <QWindow>
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#include <QSharedPointer>
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#include <QDebug>
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#include <QTextStream>
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static bool optIgnoreTouch = false;
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static QVector<Qt::GestureType> optGestures;
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static QWidgetList mainWindows;
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static inline void drawEllipse(const QPointF ¢er, qreal hDiameter, qreal vDiameter, const QColor &color, QPainter &painter)
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{
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const QPen oldPen = painter.pen();
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QPen pen = oldPen;
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pen.setColor(color);
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painter.setPen(pen);
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painter.drawEllipse(center, hDiameter / 2, vDiameter / 2);
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painter.setPen(oldPen);
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}
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static inline void fillEllipse(const QPointF ¢er, qreal hDiameter, qreal vDiameter, const QColor &color, QPainter &painter)
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{
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QPainterPath painterPath;
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painterPath.addEllipse(center, hDiameter / 2, vDiameter / 2);
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painter.fillPath(painterPath, color);
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}
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// Draws an arrow assuming a mathematical coordinate system, Y axis pointing
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// upwards, angle counterclockwise (that is, 45' is pointing up/right).
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static void drawArrow(const QPointF ¢er, qreal length, qreal angleDegrees,
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const QColor &color, int arrowSize, QPainter &painter)
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{
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painter.save();
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painter.translate(center); // Transform center to (0,0) rotate and draw arrow pointing right.
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painter.rotate(-angleDegrees);
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QPen pen = painter.pen();
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pen.setColor(color);
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pen.setWidth(2);
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painter.setPen(pen);
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const QPointF endPoint(length, 0);
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painter.drawLine(QPointF(0, 0), endPoint);
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painter.drawLine(endPoint, endPoint + QPoint(-arrowSize, -arrowSize));
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painter.drawLine(endPoint, endPoint + QPoint(-arrowSize, arrowSize));
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painter.restore();
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}
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// Hierarchy of classes containing gesture parameters and drawing functionality.
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class Gesture {
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Q_DISABLE_COPY(Gesture)
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public:
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static Gesture *fromQGesture(const QWidget *w, const QGesture *source);
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virtual ~Gesture() {}
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virtual void draw(const QRectF &rect, QPainter &painter) const = 0;
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protected:
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explicit Gesture(const QWidget *w, const QGesture *source) : m_type(source->gestureType())
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, m_hotSpot(w->mapFromGlobal(source->hotSpot().toPoint()))
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, m_hasHotSpot(source->hasHotSpot()) {}
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QPointF drawHotSpot(const QRectF &rect, QPainter &painter) const
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{
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const QPointF h = m_hasHotSpot ? m_hotSpot : rect.center();
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painter.drawEllipse(h, 15, 15);
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return h;
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}
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private:
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Qt::GestureType m_type;
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QPointF m_hotSpot;
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bool m_hasHotSpot;
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};
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class PanGesture : public Gesture {
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public:
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explicit PanGesture(const QWidget *w, const QPanGesture *source) : Gesture(w, source)
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, m_offset(source->offset()) {}
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void draw(const QRectF &rect, QPainter &painter) const override
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{
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const QPointF hotSpot = drawHotSpot(rect, painter);
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painter.drawLine(hotSpot, hotSpot + m_offset);
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}
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private:
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QPointF m_offset;
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};
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class SwipeGesture : public Gesture {
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public:
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explicit SwipeGesture(const QWidget *w, const QSwipeGesture *source) : Gesture(w, source)
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, m_horizontal(source->horizontalDirection()), m_vertical(source->verticalDirection())
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, m_angle(source->swipeAngle()) {}
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void draw(const QRectF &rect, QPainter &painter) const override;
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private:
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QSwipeGesture::SwipeDirection m_horizontal;
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QSwipeGesture::SwipeDirection m_vertical;
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qreal m_angle;
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};
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static qreal swipeDirectionAngle(QSwipeGesture::SwipeDirection d)
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{
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switch (d) {
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case QSwipeGesture::NoDirection:
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case QSwipeGesture::Right:
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break;
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case QSwipeGesture::Left:
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return 180;
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case QSwipeGesture::Up:
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return 90;
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case QSwipeGesture::Down:
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return 270;
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}
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return 0;
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}
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void SwipeGesture::draw(const QRectF &rect, QPainter &painter) const
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{
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enum { arrowLength = 50, arrowHeadSize = 10 };
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const QPointF hotSpot = drawHotSpot(rect, painter);
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drawArrow(hotSpot, arrowLength, swipeDirectionAngle(m_horizontal), Qt::red, arrowHeadSize, painter);
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drawArrow(hotSpot, arrowLength, swipeDirectionAngle(m_vertical), Qt::green, arrowHeadSize, painter);
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drawArrow(hotSpot, arrowLength, m_angle, Qt::blue, arrowHeadSize, painter);
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}
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Gesture *Gesture::fromQGesture(const QWidget *w, const QGesture *source)
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{
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Gesture *result = nullptr;
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switch (source->gestureType()) {
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case Qt::TapGesture:
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case Qt::TapAndHoldGesture:
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case Qt::PanGesture:
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result = new PanGesture(w, static_cast<const QPanGesture *>(source));
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break;
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case Qt::PinchGesture:
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case Qt::CustomGesture:
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case Qt::LastGestureType:
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break;
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case Qt::SwipeGesture:
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result = new SwipeGesture(w, static_cast<const QSwipeGesture *>(source));
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break;
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}
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return result;
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}
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typedef QSharedPointer<Gesture> GesturePtr;
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typedef QVector<GesturePtr> GesturePtrs;
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typedef QVector<QEvent::Type> EventTypeVector;
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static EventTypeVector eventTypes;
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class EventFilter : public QObject {
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Q_OBJECT
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public:
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explicit EventFilter(const EventTypeVector &types, QObject *p) : QObject(p), m_types(types) {}
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bool eventFilter(QObject *, QEvent *) override;
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signals:
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void eventReceived(const QString &);
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private:
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const EventTypeVector m_types;
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};
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static EventFilter *globalEventFilter = nullptr;
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bool EventFilter::eventFilter(QObject *o, QEvent *e)
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{
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static int n = 0;
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if (m_types.contains(e->type())) {
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QString message;
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QDebug debug(&message);
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debug << '#' << n++ << ' ' << o->objectName() << ' ';
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switch (e->type()) {
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case QEvent::Gesture:
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case QEvent::GestureOverride:
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debug << static_cast<const QGestureEvent *>(e); // Special operator
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break;
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default:
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debug << e;
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break;
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}
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emit eventReceived(message);
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}
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return false;
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}
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enum PointType {
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TouchPoint,
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MousePress,
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MouseRelease
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};
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struct Point
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{
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Point(const QPointF &p = QPoint(), PointType t = TouchPoint,
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Qt::MouseEventSource s = Qt::MouseEventNotSynthesized, QSizeF diameters = QSizeF(4, 4)) :
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pos(p), horizontalDiameter(qMax(2., diameters.width())),
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verticalDiameter(qMax(2., diameters.height())), type(t), source(s) {}
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QColor color() const;
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QPointF pos;
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qreal horizontalDiameter;
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qreal verticalDiameter;
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PointType type;
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Qt::MouseEventSource source;
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};
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QColor Point::color() const
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{
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Qt::GlobalColor globalColor = Qt::black;
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if (type != TouchPoint) {
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switch (source) {
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case Qt::MouseEventSynthesizedBySystem:
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globalColor = Qt::red;
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break;
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case Qt::MouseEventSynthesizedByQt:
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globalColor = Qt::blue;
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break;
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case Qt::MouseEventSynthesizedByApplication:
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globalColor = Qt::green;
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break;
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case Qt::MouseEventNotSynthesized:
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break;
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}
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}
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const QColor result(globalColor);
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return type == MousePress ? result.lighter() : result;
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}
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class TouchTestWidget : public QWidget {
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Q_OBJECT
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Q_PROPERTY(bool drawPoints READ drawPoints WRITE setDrawPoints)
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public:
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explicit TouchTestWidget(QWidget *parent = nullptr) : QWidget(parent), m_drawPoints(true)
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{
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setAttribute(Qt::WA_AcceptTouchEvents);
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for (Qt::GestureType t : optGestures)
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grabGesture(t);
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}
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bool drawPoints() const { return m_drawPoints; }
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public slots:
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void clearPoints();
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void setDrawPoints(bool drawPoints);
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signals:
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void logMessage(const QString &);
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protected:
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bool event(QEvent *event) override;
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void paintEvent(QPaintEvent *) override;
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private:
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void handleGestureEvent(QGestureEvent *gestureEvent);
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QVector<Point> m_points;
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GesturePtrs m_gestures;
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bool m_drawPoints;
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};
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void TouchTestWidget::clearPoints()
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{
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if (!m_points.isEmpty() || !m_gestures.isEmpty()) {
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m_points.clear();
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m_gestures.clear();
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update();
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}
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}
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void TouchTestWidget::setDrawPoints(bool drawPoints)
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{
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if (m_drawPoints != drawPoints) {
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clearPoints();
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m_drawPoints = drawPoints;
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}
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}
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bool TouchTestWidget::event(QEvent *event)
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{
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const QEvent::Type type = event->type();
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switch (type) {
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case QEvent::MouseButtonPress:
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case QEvent::MouseButtonRelease:
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if (m_drawPoints) {
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const QMouseEvent *me = static_cast<const QMouseEvent *>(event);
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m_points.append(Point(me->localPos(),
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type == QEvent::MouseButtonPress ? MousePress : MouseRelease,
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me->source()));
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update();
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}
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break;
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case QEvent::TouchBegin:
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case QEvent::TouchUpdate:
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if (m_drawPoints) {
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for (const QTouchEvent::TouchPoint &p : static_cast<const QTouchEvent *>(event)->touchPoints())
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m_points.append(Point(p.pos(), TouchPoint, Qt::MouseEventNotSynthesized, p.ellipseDiameters()));
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update();
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}
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Q_FALLTHROUGH();
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case QEvent::TouchEnd:
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if (optIgnoreTouch)
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event->ignore();
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else
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event->accept();
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return true;
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case QEvent::Gesture:
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handleGestureEvent(static_cast<QGestureEvent *>(event));
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break;
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default:
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break;
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}
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return QWidget::event(event);
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}
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void TouchTestWidget::handleGestureEvent(QGestureEvent *gestureEvent)
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{
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const auto gestures = gestureEvent->gestures();
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for (QGesture *gesture : gestures) {
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if (optGestures.contains(gesture->gestureType())) {
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switch (gesture->state()) {
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case Qt::NoGesture:
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break;
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case Qt::GestureStarted:
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case Qt::GestureUpdated:
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gestureEvent->accept(gesture);
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break;
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case Qt::GestureFinished:
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gestureEvent->accept(gesture);
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if (Gesture *g = Gesture::fromQGesture(this, gesture)) {
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m_gestures.append(GesturePtr(g));
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update();
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}
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break;
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case Qt::GestureCanceled:
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emit logMessage(QLatin1String("=== Qt::GestureCanceled ==="));
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break;
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}
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}
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}
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}
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void TouchTestWidget::paintEvent(QPaintEvent *)
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{
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// Draw touch points as dots, mouse press as light filled circles, mouse release as circles.
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QPainter painter(this);
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const QRectF geom = QRectF(QPointF(0, 0), QSizeF(size()));
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painter.fillRect(geom, Qt::white);
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painter.drawRect(QRectF(geom.topLeft(), geom.bottomRight() - QPointF(1, 1)));
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for (const Point &point : qAsConst(m_points)) {
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if (geom.contains(point.pos)) {
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if (point.type == MouseRelease)
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drawEllipse(point.pos, point.horizontalDiameter, point.verticalDiameter, point.color(), painter);
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else
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fillEllipse(point.pos, point.horizontalDiameter, point.verticalDiameter, point.color(), painter);
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}
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}
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for (const GesturePtr &gp : qAsConst(m_gestures))
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gp->draw(geom, painter);
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}
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class MainWindow : public QMainWindow
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{
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Q_OBJECT
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MainWindow();
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public:
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static MainWindow *createMainWindow();
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QWidget *touchWidget() const { return m_touchWidget; }
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void setVisible(bool visible) override;
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public slots:
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void appendToLog(const QString &text) { m_logTextEdit->appendPlainText(text); }
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void dumpTouchDevices();
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private:
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void updateScreenLabel();
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void newWindow() { MainWindow::createMainWindow(); }
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TouchTestWidget *m_touchWidget;
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QPlainTextEdit *m_logTextEdit;
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QLabel *m_screenLabel;
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};
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MainWindow *MainWindow::createMainWindow()
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{
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MainWindow *result = new MainWindow;
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const QSize screenSize = QGuiApplication::primaryScreen()->availableGeometry().size();
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result->resize(screenSize / 2);
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const QSize sizeDiff = screenSize - result->size();
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const QPoint pos = QPoint(sizeDiff.width() / 2, sizeDiff.height() / 2)
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+ mainWindows.size() * QPoint(30, 10);
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result->move(pos);
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result->show();
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EventFilter *eventFilter = globalEventFilter;
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if (!eventFilter) {
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eventFilter = new EventFilter(eventTypes, result->touchWidget());
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result->touchWidget()->installEventFilter(eventFilter);
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}
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QObject::connect(eventFilter, &EventFilter::eventReceived, result, &MainWindow::appendToLog);
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mainWindows.append(result);
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return result;
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}
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MainWindow::MainWindow()
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: m_touchWidget(new TouchTestWidget)
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, m_logTextEdit(new QPlainTextEdit)
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, m_screenLabel(new QLabel)
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{
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QString title;
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QTextStream(&title) << "Touch Event Tester " << QT_VERSION_STR << ' '
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<< qApp->platformName() << " #" << (mainWindows.size() + 1);
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setWindowTitle(title);
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setObjectName("MainWin");
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QToolBar *toolBar = new QToolBar(this);
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addToolBar(Qt::TopToolBarArea, toolBar);
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QMenu *fileMenu = menuBar()->addMenu("File");
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QAction *newWindowAction = fileMenu->addAction(QStringLiteral("New Window"), this, &MainWindow::newWindow);
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newWindowAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_N));
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toolBar->addAction(newWindowAction);
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fileMenu->addSeparator();
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QAction *dumpDeviceAction = fileMenu->addAction(QStringLiteral("Dump devices"));
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dumpDeviceAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_D));
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connect(dumpDeviceAction, &QAction::triggered, this, &MainWindow::dumpTouchDevices);
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toolBar->addAction(dumpDeviceAction);
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QAction *clearLogAction = fileMenu->addAction(QStringLiteral("Clear Log"));
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clearLogAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_L));
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connect(clearLogAction, &QAction::triggered, m_logTextEdit, &QPlainTextEdit::clear);
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toolBar->addAction(clearLogAction);
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QAction *toggleDrawPointAction = fileMenu->addAction(QStringLiteral("Draw Points"));
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toggleDrawPointAction->setCheckable(true);
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toggleDrawPointAction->setChecked(m_touchWidget->drawPoints());
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connect(toggleDrawPointAction, &QAction::toggled, m_touchWidget, &TouchTestWidget::setDrawPoints);
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toolBar->addAction(toggleDrawPointAction);
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QAction *clearPointAction = fileMenu->addAction(QStringLiteral("Clear Points"));
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clearPointAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_P));
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connect(clearPointAction, &QAction::triggered, m_touchWidget, &TouchTestWidget::clearPoints);
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toolBar->addAction(clearPointAction);
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QAction *quitAction = fileMenu->addAction(QStringLiteral("Quit"));
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quitAction->setShortcut(QKeySequence(Qt::CTRL + Qt::Key_Q));
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connect(quitAction, &QAction::triggered, qApp, &QCoreApplication::quit);
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toolBar->addAction(quitAction);
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QSplitter *mainSplitter = new QSplitter(Qt::Vertical, this);
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m_touchWidget->setObjectName(QStringLiteral("TouchWidget"));
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mainSplitter->addWidget(m_touchWidget);
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connect(m_touchWidget, &TouchTestWidget::logMessage, this, &MainWindow::appendToLog);
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|
|
|
m_logTextEdit->setObjectName(QStringLiteral("LogTextEdit"));
|
|
mainSplitter->addWidget(m_logTextEdit);
|
|
setCentralWidget(mainSplitter);
|
|
|
|
statusBar()->addPermanentWidget(m_screenLabel);
|
|
|
|
dumpTouchDevices();
|
|
}
|
|
|
|
void MainWindow::setVisible(bool visible)
|
|
{
|
|
QMainWindow::setVisible(visible);
|
|
connect(windowHandle(), &QWindow::screenChanged, this, &MainWindow::updateScreenLabel);
|
|
updateScreenLabel();
|
|
}
|
|
|
|
void MainWindow::updateScreenLabel()
|
|
{
|
|
QString text;
|
|
QTextStream str(&text);
|
|
const QScreen *screen = windowHandle()->screen();
|
|
const QRect geometry = screen->geometry();
|
|
const qreal dpr = screen->devicePixelRatio();
|
|
str << '"' << screen->name() << "\" " << geometry.width() << 'x' << geometry.height()
|
|
<< Qt::forcesign << geometry.x() << geometry.y() << Qt::noforcesign;
|
|
if (!qFuzzyCompare(dpr, qreal(1)))
|
|
str << ", dpr=" << dpr;
|
|
m_screenLabel->setText(text);
|
|
}
|
|
|
|
void MainWindow::dumpTouchDevices()
|
|
{
|
|
QString message;
|
|
QDebug debug(&message);
|
|
const QList<const QTouchDevice *> devices = QTouchDevice::devices();
|
|
debug << devices.size() << "Device(s):\n";
|
|
for (int i = 0; i < devices.size(); ++i)
|
|
debug << "Device #" << i << devices.at(i) << '\n';
|
|
appendToLog(message);
|
|
}
|
|
|
|
int main(int argc, char *argv[])
|
|
{
|
|
QApplication a(argc, argv);
|
|
QCommandLineParser parser;
|
|
parser.setApplicationDescription(QStringLiteral("Touch/Mouse tester"));
|
|
parser.addHelpOption();
|
|
const QCommandLineOption mouseMoveOption(QStringLiteral("mousemove"),
|
|
QStringLiteral("Log mouse move events"));
|
|
parser.addOption(mouseMoveOption);
|
|
const QCommandLineOption globalFilterOption(QStringLiteral("global"),
|
|
QStringLiteral("Global event filter"));
|
|
parser.addOption(globalFilterOption);
|
|
|
|
const QCommandLineOption ignoreTouchOption(QStringLiteral("ignore"),
|
|
QStringLiteral("Ignore touch events (for testing mouse emulation)."));
|
|
parser.addOption(ignoreTouchOption);
|
|
const QCommandLineOption noTouchLogOption(QStringLiteral("notouchlog"),
|
|
QStringLiteral("Do not log touch events (for testing gestures)."));
|
|
parser.addOption(noTouchLogOption);
|
|
const QCommandLineOption noMouseLogOption(QStringLiteral("nomouselog"),
|
|
QStringLiteral("Do not log mouse events (for testing gestures)."));
|
|
parser.addOption(noMouseLogOption);
|
|
|
|
const QCommandLineOption tapGestureOption(QStringLiteral("tap"), QStringLiteral("Grab tap gesture."));
|
|
parser.addOption(tapGestureOption);
|
|
const QCommandLineOption tapAndHoldGestureOption(QStringLiteral("tap-and-hold"),
|
|
QStringLiteral("Grab tap-and-hold gesture."));
|
|
parser.addOption(tapAndHoldGestureOption);
|
|
const QCommandLineOption panGestureOption(QStringLiteral("pan"), QStringLiteral("Grab pan gesture."));
|
|
parser.addOption(panGestureOption);
|
|
const QCommandLineOption pinchGestureOption(QStringLiteral("pinch"), QStringLiteral("Grab pinch gesture."));
|
|
parser.addOption(pinchGestureOption);
|
|
const QCommandLineOption swipeGestureOption(QStringLiteral("swipe"), QStringLiteral("Grab swipe gesture."));
|
|
parser.addOption(swipeGestureOption);
|
|
parser.process(QApplication::arguments());
|
|
optIgnoreTouch = parser.isSet(ignoreTouchOption);
|
|
if (parser.isSet(tapGestureOption))
|
|
optGestures.append(Qt::TapGesture);
|
|
if (parser.isSet(tapAndHoldGestureOption))
|
|
optGestures.append(Qt::TapAndHoldGesture);
|
|
if (parser.isSet(panGestureOption))
|
|
optGestures.append(Qt::PanGesture);
|
|
if (parser.isSet(pinchGestureOption))
|
|
optGestures.append(Qt::PinchGesture);
|
|
if (parser.isSet(swipeGestureOption))
|
|
optGestures.append(Qt::SwipeGesture);
|
|
|
|
if (!parser.isSet(noMouseLogOption))
|
|
eventTypes << QEvent::MouseButtonPress << QEvent::MouseButtonRelease << QEvent::MouseButtonDblClick;
|
|
if (parser.isSet(mouseMoveOption))
|
|
eventTypes << QEvent::MouseMove;
|
|
if (!parser.isSet(noTouchLogOption))
|
|
eventTypes << QEvent::TouchBegin << QEvent::TouchUpdate << QEvent::TouchEnd;
|
|
if (!optGestures.isEmpty())
|
|
eventTypes << QEvent::Gesture << QEvent::GestureOverride;
|
|
if (parser.isSet(globalFilterOption)) {
|
|
globalEventFilter = new EventFilter(eventTypes, &a);
|
|
a.installEventFilter(globalEventFilter);
|
|
}
|
|
|
|
MainWindow::createMainWindow();
|
|
|
|
const int exitCode = a.exec();
|
|
qDeleteAll(mainWindows);
|
|
return exitCode;
|
|
}
|
|
|
|
#include "main.moc"
|