mirror of
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94 lines
3.5 KiB
C++
94 lines
3.5 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2018 F4EXB //
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// written by Edouard Griffiths //
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// //
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// This program is free software; you can redistribute it and/or modify //
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// it under the terms of the GNU General Public License as published by //
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// the Free Software Foundation as version 3 of the License, or //
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// (at your option) any later version. //
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// //
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// This program is distributed in the hope that it will be useful, //
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// but WITHOUT ANY WARRANTY; without even the implied warranty of //
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the //
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// GNU General Public License V3 for more details. //
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// //
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// You should have received a copy of the GNU General Public License //
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// along with this program. If not, see <http://www.gnu.org/licenses/>. //
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///////////////////////////////////////////////////////////////////////////////////
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#include <QMouseEvent>
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#include <QGestureEvent>
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#include <QGesture>
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#include <QTapAndHoldGesture>
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#include "crightclickenabler.h"
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CRightClickEnabler::CRightClickEnabler(QWidget *widget) :
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QObject(widget),
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m_widget(widget),
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m_mousePressed(false)
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{
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m_widget->installEventFilter(this);
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m_widget->grabGesture(Qt::TapAndHoldGesture);
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}
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bool CRightClickEnabler::eventFilter(QObject *obj, QEvent *event)
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{
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if (event->type() == QEvent::MouseButtonPress)
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{
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auto mouseEvent = (QMouseEvent*) event;
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if (mouseEvent->button() == Qt::RightButton)
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{
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emit rightClick(mouseEvent->globalPos());
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mouseEvent->setAccepted(true);
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return true;
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}
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if (mouseEvent->button() == Qt::LeftButton)
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{
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if (mouseEvent->source() == Qt::MouseEventNotSynthesized) {
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m_mousePressed = true;
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} else {
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m_mousePressed = false; // Mouse event generated from touch event
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}
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}
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}
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else if (event->type() == QEvent::MouseButtonRelease)
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{
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auto mouseEvent = (QMouseEvent*) event;
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if (mouseEvent->button() == Qt::RightButton)
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{
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mouseEvent->setAccepted(true);
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return true;
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}
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if (mouseEvent->button() == Qt::LeftButton) {
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m_mousePressed = false;
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}
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}
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else if (event->type() == QEvent::Gesture)
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{
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// Use tap and hold as right click on touch screens
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if (!m_mousePressed)
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{
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QGestureEvent *gestureEvent = static_cast<QGestureEvent *>(event);
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if (QTapAndHoldGesture *tapAndHold = static_cast<QTapAndHoldGesture *>(gestureEvent->gesture(Qt::TapAndHoldGesture)))
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{
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if (tapAndHold->state() == Qt::GestureFinished) {
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emit rightClick(tapAndHold->position().toPoint());
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}
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return true;
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}
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}
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}
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else if (event->type() == QEvent::ContextMenu)
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{
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// Filter ContextMenu events, so we don't get popup menus as well
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return true;
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}
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return QObject::eventFilter(obj, event);
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}
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