87 lines
1.8 KiB
C++
Executable File
87 lines
1.8 KiB
C++
Executable File
#include "track_entry_previewer.h"
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#include "track_entry.h"
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#include "track_entry_painters.h"
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#include "track_content_widget.h"
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#include <QPainter>
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#include <QDrag>
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#include <QMimeData>
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#include <QMouseEvent>
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namespace LtsScriptTimeline
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{
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// only for dnd
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QDataStream &operator<<(QDataStream &ds, const TrackEntry &te);
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QDataStream &operator>>(QDataStream &ds, TrackEntry &te);
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TrackEntryPreviewer::TrackEntryPreviewer(QWidget *parent)
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: QWidget(parent)
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, m_te(nullptr)
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{
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// setMinimumSize(50, 50);
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// setSizePolicy(QSizePolicy::MinimumExpanding, QSizePolicy::Maximum);
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setVisible(false);
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}
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TrackEntryPreviewer::~TrackEntryPreviewer()
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{}
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void TrackEntryPreviewer::setTrackEntry(TrackEntry *te)
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{
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m_te = te;
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if (m_te->isSet) // is already set (no d&d)
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return;
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connect(m_te, &TrackEntry::destroyed,
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this, [this]()
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{
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m_te = nullptr;
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emit signalDelete();
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});
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}
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void TrackEntryPreviewer::mousePressEvent(QMouseEvent *event)
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{
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// check if it's a drag + te exists
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if (!m_te || event->buttons() != Qt::LeftButton)
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return;
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m_te->isSet = true; // temporary !
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QByteArray itemData(TrackContentWidget::itemsToData({ m_te }, 0));
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m_te->isSet = false; // set back, so that THIS te is kept unset
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QMimeData *mimeData = new QMimeData;
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mimeData->setData(TrackContentWidget::mime, itemData);
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QDrag *drag = new QDrag(this);
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drag->setDragCursor(QPixmap(), Qt::CopyAction);
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drag->setMimeData(mimeData);
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emit signalStartDrag();
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if (drag->exec(Qt::CopyAction) == Qt::CopyAction) // exec... grr...
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emit signalDelete();
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emit signalStopDrag();
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}
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void TrackEntryPreviewer::paintEvent(QPaintEvent *event)
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{
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QWidget::paintEvent(event);
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QPainter painter(this);
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if (!m_te)
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return;
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drawTrackEntry(m_te, painter, rect().adjusted(0, 0, -1, -1), false, isEnabled());
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}
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} // namespace LtsScriptTimeline
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