144 lines
3.5 KiB
C++
144 lines
3.5 KiB
C++
#include "ScreenSetupView.h"
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#include "ScreenSetupModel.h"
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#include "ScreenSettingsDialog.h"
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#include <QtCore>
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#include <QtGui>
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ScreenSetupView::ScreenSetupView(QWidget* parent) :
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QTableView(parent)
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{
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setDropIndicatorShown(true);
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setDragDropMode(DragDrop);
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setSelectionMode(SingleSelection);
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setHorizontalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setVerticalScrollBarPolicy(Qt::ScrollBarAlwaysOff);
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setIconSize(QSize(64, 64));
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horizontalHeader()->hide();
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verticalHeader()->hide();
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}
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void ScreenSetupView::setModel(ScreenSetupModel* model)
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{
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QTableView::setModel(model);
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setTableSize();
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}
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ScreenSetupModel* ScreenSetupView::model() const
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{
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return qobject_cast<ScreenSetupModel*>(QTableView::model());
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}
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void ScreenSetupView::setTableSize()
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{
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for (int i = 0; i < model()->columnCount(); i++)
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setColumnWidth(i, width() / model()->columnCount());
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for (int i = 0; i < model()->rowCount(); i++)
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setRowHeight(i, height() / model()->rowCount());
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}
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void ScreenSetupView::resizeEvent(QResizeEvent* event)
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{
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setTableSize();
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event->ignore();
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}
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void ScreenSetupView::mouseDoubleClickEvent(QMouseEvent* event)
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{
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if (event->buttons() & Qt::LeftButton)
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{
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int col = columnAt(event->pos().x());
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int row = rowAt(event->pos().y());
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if (!model()->screen(col, row).isNull())
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{
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ScreenSettingsDialog dlg(this, &model()->screen(col, row));
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dlg.exec();
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}
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}
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else
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event->ignore();
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}
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void ScreenSetupView::dragEnterEvent(QDragEnterEvent* event)
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{
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// we accept anything that enters us by a drag as long as the
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// mime type is okay. anything else is dealt with in dragMoveEvent()
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if (event->mimeData()->hasFormat(ScreenSetupModel::mimeType()))
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event->accept();
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else
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event->ignore();
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}
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void ScreenSetupView::dragMoveEvent(QDragMoveEvent* event)
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{
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if (event->mimeData()->hasFormat(ScreenSetupModel::mimeType()))
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{
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// where does the event come from? myself or someone else?
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if (event->source() == this)
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{
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// myself is ok, but then it must be a move action, never a copy
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event->setDropAction(Qt::MoveAction);
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event->accept();
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}
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else
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{
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int col = columnAt(event->pos().x());
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int row = rowAt(event->pos().y());
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// a drop from outside is not allowed if there's a screen already there.
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if (!model()->screen(col, row).isNull())
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event->ignore();
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else
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event->acceptProposedAction();
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}
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}
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else
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event->ignore();
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}
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// this is reimplemented from QAbstractItemView::startDrag()
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void ScreenSetupView::startDrag(Qt::DropActions)
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{
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QModelIndexList indexes = selectedIndexes();
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if (indexes.count() != 1)
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return;
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QMimeData* pData = model()->mimeData(indexes);
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if (pData == NULL)
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return;
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QPixmap pixmap = *model()->screen(indexes[0]).pixmap();
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QDrag* pDrag = new QDrag(this);
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pDrag->setPixmap(pixmap);
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pDrag->setMimeData(pData);
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pDrag->setHotSpot(QPoint(pixmap.width() / 2, pixmap.height() / 2));
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if (pDrag->exec(Qt::MoveAction, Qt::MoveAction) == Qt::MoveAction)
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{
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selectionModel()->clear();
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// make sure to only delete the drag source if screens weren't swapped
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// see ScreenSetupModel::dropMimeData
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if (!model()->screen(indexes[0]).swapped())
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model()->screen(indexes[0]) = Screen();
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else
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model()->screen(indexes[0]).setSwapped(false);
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}
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}
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QStyleOptionViewItem ScreenSetupView::viewOptions() const
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{
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QStyleOptionViewItem option = QTableView::viewOptions();
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option.showDecorationSelected = true;
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option.decorationPosition = QStyleOptionViewItem::Top;
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option.displayAlignment = Qt::AlignCenter;
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option.textElideMode = Qt::ElideMiddle;
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return option;
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}
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