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Creates DataSeriesUtils file that will contain methods for handling data holes...
Creates DataSeriesUtils file that will contain methods for handling data holes Renames DataSeriesUtils file in unit tests to avoid conflicts

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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);
}