65 lines
2.0 KiB
C++
65 lines
2.0 KiB
C++
#include "kcategorizeditemsview_p.h"
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#define PIX_SIZE 64
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#define MAX_OFFSET 16
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#define MAX_COUNT 5
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CustomDragTreeView::CustomDragTreeView(QWidget * parent)
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: QTreeView(parent) {}
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void CustomDragTreeView::startDrag ( Qt::DropActions supportedActions )
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{
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Q_UNUSED(supportedActions);
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// TODO: calculate real size for pixmap - using the icon sizes, not fixed
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// like now
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if (!m_view) return;
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QModelIndexList indexes = selectedIndexes();
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if (indexes.count() > 0) {
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QMimeData *data = model()->mimeData(indexes);
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if (!data) {
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return;
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}
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int size = PIX_SIZE + (qMin(MAX_COUNT, indexes.count()) * MAX_OFFSET);
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int off = MAX_OFFSET;
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if (indexes.count() > MAX_COUNT) {
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off = (MAX_OFFSET * MAX_COUNT) / indexes.count();
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}
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kDebug() << "Size: " << size << " Off: " << off << "\n";
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QPixmap pixmap(size, size);
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pixmap.fill(QColor(255, 255, 255, 0)); // TODO: Transparent. Now it flickers when it's transparent
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QPainter painter(&pixmap);
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QRect rect(0, 0, PIX_SIZE, PIX_SIZE);
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foreach (QModelIndex index, indexes) {
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if (index.column() == 1) continue;
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KCategorizedItemsViewModels::AbstractItem * item =
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m_view->getItemByProxyIndex(index);
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if (item) {
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rect.setSize(item->icon().actualSize(QSize(PIX_SIZE, PIX_SIZE)));
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//painter.fillRect(rect, QBrush(QColor(255, 255, 255))); // TODO: Use global palettes
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item->icon().paint(&painter, rect);
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rect.moveTopLeft(rect.topLeft() + QPoint(off, off));
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}
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}
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painter.end();
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QDrag *drag = new QDrag(this);
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drag->setPixmap(pixmap);
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drag->setMimeData(data);
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drag->start(supportedActions);
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//drag->setHotSpot(d->pressedPosition - rect.topLeft());
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//if (drag->start(supportedActions) == Qt::MoveAction)
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// d->clearOrRemove();
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}
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}
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