60 lines
1.4 KiB
C++
60 lines
1.4 KiB
C++
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#include "graphicsview.h"
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#include <QDebug>
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#include <QMouseEvent>
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#include <QScrollBar>
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GraphicsView::GraphicsView(QWidget *parent)
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: QGraphicsView (parent)
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{
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setDragMode(QGraphicsView::ScrollHandDrag);
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setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setStyleSheet("background-color: rgba(0, 0, 0, 180);"
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"border-radius: 3px;");
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}
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void GraphicsView::mousePressEvent(QMouseEvent *event)
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{
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QGraphicsItem *item = itemAt(event->pos());
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if (!item) {
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event->ignore();
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// blumia: return here, or the QMouseEvent event transparency won't
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// work if we set a QGraphicsView::ScrollHandDrag drag mode.
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return;
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}
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qDebug() << item;
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return QGraphicsView::mousePressEvent(event);
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}
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void GraphicsView::mouseMoveEvent(QMouseEvent *event)
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{
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QGraphicsItem *item = itemAt(event->pos());
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if (!item) {
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event->ignore();
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}
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return QGraphicsView::mouseMoveEvent(event);
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}
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void GraphicsView::mouseReleaseEvent(QMouseEvent *event)
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{
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QGraphicsItem *item = itemAt(event->pos());
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if (!item) {
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event->ignore();
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}
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return QGraphicsView::mouseReleaseEvent(event);
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}
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void GraphicsView::wheelEvent(QWheelEvent *event)
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{
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if(event->delta() > 0) {
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scale(1.25, 1.25);
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} else {
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scale(0.8, 0.8);
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}
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}
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