Files
qt6-migration-pipeline/Lts/Common/LtsScriptTimeline/track_entry_previewer.cpp
T

87 lines
1.6 KiB
C++
Executable File

#include "track_entry_previewer.h"
#include "track_entry.h"
#include "track_entry_painters.h"
#include "track_content_widget.h"
#include <QPainter>
#include <QDrag>
#include <QMimeData>
#include <QMouseEvent>
namespace LtsScriptTimeline
{
QDataStream &operator<<(QDataStream &ds, const TrackEntry &te);
QDataStream &operator>>(QDataStream &ds, TrackEntry &te);
TrackEntryPreviewer::TrackEntryPreviewer(QWidget *parent)
: QWidget(parent)
, m_te(nullptr)
{
setVisible(false);
}
TrackEntryPreviewer::~TrackEntryPreviewer()
{}
void TrackEntryPreviewer::setTrackEntry(TrackEntry *te)
{
m_te = te;
if (m_te->isSet)
return;
connect(m_te, &TrackEntry::destroyed,
this, [this]()
{
m_te = nullptr;
emit signalDelete();
});
}
void TrackEntryPreviewer::mousePressEvent(QMouseEvent *event)
{
if (!m_te || event->buttons() != Qt::LeftButton)
return;
m_te->isSet = true;
QByteArray itemData(TrackContentWidget::itemsToData({ m_te }, 0));
m_te->isSet = false;
QMimeData *mimeData = new QMimeData;
mimeData->setData(TrackContentWidget::mime, itemData);
QDrag *drag = new QDrag(this);
drag->setDragCursor(QPixmap(), Qt::CopyAction);
drag->setMimeData(mimeData);
emit signalStartDrag();
if (drag->exec(Qt::CopyAction) == Qt::CopyAction)
emit signalDelete();
emit signalStopDrag();
}
void TrackEntryPreviewer::paintEvent(QPaintEvent *event)
{
QWidget::paintEvent(event);
QPainter painter(this);
if (!m_te)
return;
drawTrackEntry(m_te, painter, rect().adjusted(0, 0, -1, -1), false, isEnabled());
}
}