##// END OF EJS Templates
Adds unit test of spectrogram with holes at the beginning and the end
Adds unit test of spectrogram with holes at the beginning and the end

File last commit:

r847:90e991aec5fa
r959:b338818bb8f2
Show More
VisualizationDragWidget.cpp
53 lines | 1.3 KiB | text/x-c | CppLexer
/ gui / src / Visualization / VisualizationDragWidget.cpp
#include "Visualization/VisualizationDragWidget.h"
#include "Visualization/VisualizationDragDropContainer.h"
#include <QApplication>
#include <QMouseEvent>
struct VisualizationDragWidget::VisualizationDragWidgetPrivate {
QPoint m_DragStartPosition;
bool m_DragStartPositionValid = false;
explicit VisualizationDragWidgetPrivate() {}
};
VisualizationDragWidget::VisualizationDragWidget(QWidget *parent)
: QWidget{parent}, impl{spimpl::make_unique_impl<VisualizationDragWidgetPrivate>()}
{
}
void VisualizationDragWidget::mousePressEvent(QMouseEvent *event)
{
if (event->button() == Qt::LeftButton) {
impl->m_DragStartPosition = event->pos();
}
impl->m_DragStartPositionValid = isDragAllowed();
QWidget::mousePressEvent(event);
}
void VisualizationDragWidget::mouseMoveEvent(QMouseEvent *event)
{
if (!impl->m_DragStartPositionValid || !isDragAllowed()) {
return;
}
if (!(event->buttons() & Qt::LeftButton)) {
return;
}
if (!event->modifiers().testFlag(Qt::AltModifier)) {
return;
}
if ((event->pos() - impl->m_DragStartPosition).manhattanLength()
< QApplication::startDragDistance()) {
return;
}
emit dragDetected(this, impl->m_DragStartPosition);
QWidget::mouseMoveEvent(event);
}