mirror of
https://gitlab.com/smart-pattern/valentina.git
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53 lines
1.8 KiB
C++
53 lines
1.8 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2013 Valentina project All Rights Reserved.
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**
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** This file is part of Valentina.
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**
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** Tox 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, either version 3 of the License, or
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** (at your option) any later version.
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**
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** Tox 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 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 Valentina. If not, see <http://www.gnu.org/licenses/>.
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**
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****************************************************************************/
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#include "vmaingraphicsview.h"
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#include <QApplication>
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#include <QWheelEvent>
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#include <QScrollBar>
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VMainGraphicsView::VMainGraphicsView(QWidget *parent) :
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QGraphicsView(parent){
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QGraphicsView::setResizeAnchor(QGraphicsView::AnchorUnderMouse);
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setRenderHints(QPainter::Antialiasing | QPainter::SmoothPixmapTransform);
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}
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void VMainGraphicsView::wheelEvent(QWheelEvent *event){
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if (QApplication::keyboardModifiers() == Qt::ControlModifier){
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// Если нажата клавиша CTRL этот код выполнится
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if ((event->delta())>0){
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ZoomIn();
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} else if ((event->delta())<0){
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ZoomOut();
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}
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} else {
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verticalScrollBar()->setValue(verticalScrollBar()->value() - event->delta());
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}
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}
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void VMainGraphicsView::ZoomIn(){
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scale(1.1,1.1);
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}
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void VMainGraphicsView::ZoomOut(){
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scale(1/1.1,1/1.1);
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}
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