void mousePressEvent(QMouseEvent *e) {
if(e->button() == LeftButton) {
if(labeltype == Des)
return;
QDragObject *drobj = 0;
if(pixmap()) { // 如果有圖片
// 產生QDragObject
drobj = new QImageDrag(pixmap()->convertToImage(), this);
QPixmap pm;
// 產生縮圖
pm.convertFromImage(
pixmap()->convertToImage().smoothScale(25, 25));
// 拖曳時的顯示圖形與游標位移
drobj->setPixmap(pm, QPoint(-14, -20));
}
else if(text()) { // 如果有文字
drobj = new QTextDrag(text(), this);
drobj->setPixmap(QPixmap("text.gif"), QPoint(-25, -15));
}
// ?#125;始拖放動作
if(drobj)
drobj->dragCopy();
}
}
void KSnapshot::slotDragSnapshot()
{
QDragObject *drobj = new QImageDrag(snapshot.convertToImage(), this);
Q_CHECK_PTR(drobj);
drobj->setPixmap(mainWidget->preview());
drobj->dragCopy();
}
QDragObject *KNCollectionView::dragObject()
{
KFolderTreeItem *item = static_cast<KFolderTreeItem *>
(itemAt(viewport()->mapFromGlobal(QCursor::pos())));
if(item && item->protocol() == KFolderTreeItem::Local && item->type() == KFolderTreeItem::Other)
{
QDragObject *d = new QStoredDrag("x-knode-drag/folder", viewport());
d->setPixmap(SmallIcon("folder"));
return d;
}
return 0;
}
void DropSite::mousePressEvent( QMouseEvent * /*e*/ )
{
QDragObject *d;
if ( pixmap() ) {
d = new QImageDrag( pixmap()->convertToImage(), this );
QPixmap pm;
pm.convertFromImage(pixmap()->convertToImage().smoothScale(
pixmap()->width()/3,pixmap()->height()/3));
d->setPixmap(pm,QPoint(-5,-7));
} else {
d = new QTextDrag( text(), this );
}
d->dragCopy();
}
QDragObject* KonqSidebarTree::dragObject()
{
KonqSidebarTreeItem* item = static_cast<KonqSidebarTreeItem *>( selectedItem() );
if ( !item )
return 0;
QDragObject* drag = item->dragObject( viewport(), false );
if ( !drag )
return 0;
const QPixmap *pix = item->pixmap(0);
if ( pix && drag->pixmap().isNull() )
drag->setPixmap( *pix );
return drag;
}
void Summary::mouseMoveEvent(QMouseEvent *event)
{
if((event->state() & LeftButton) &&
(event->pos() - mDragStartPoint).manhattanLength() > 4)
{
QDragObject *drag = new QTextDrag("", this, "SummaryWidgetDrag");
QPixmap pm = QPixmap::grabWidget(this);
if(pm.width() > 300)
pm = pm.convertToImage().smoothScale(300, 300, QImage::ScaleMin);
QPainter painter;
painter.begin(&pm);
painter.setPen(Qt::gray);
painter.drawRect(0, 0, pm.width(), pm.height());
painter.end();
drag->setPixmap(pm);
drag->dragMove();
}
else
QWidget::mouseMoveEvent(event);
}