109 lines
3.0 KiB
C++
109 lines
3.0 KiB
C++
#if 1
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#include "picscene.h"
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#include <QDebug>
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#include <QRectF>
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PicScene::PicScene(QObject *parent) :
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QGraphicsScene(parent)
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{
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}
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void PicScene::setMode(Mode mode)
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{
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myMode = mode;
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}
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void PicScene::mousePressEvent(QGraphicsSceneMouseEvent *mouseEvent)
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{
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if (mouseEvent->button() != Qt::LeftButton)
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return;
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QGraphicsScene::mousePressEvent(mouseEvent);
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}
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//! [9]
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//! [10]
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void PicScene::mouseMoveEvent(QGraphicsSceneMouseEvent *mouseEvent)
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{
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#if 0
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if (myMode == InsertLine && line != 0) {
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QLineF newLine(line->line().p1(), mouseEvent->scenePos());
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line->setLine(newLine);
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} else if (myMode == MoveItem) {
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QGraphicsScene::mouseMoveEvent(mouseEvent);
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}
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#else
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QGraphicsScene::mouseMoveEvent(mouseEvent);
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#endif
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}
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//! [10]
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//! [11]
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void PicScene::mouseReleaseEvent(QGraphicsSceneMouseEvent *mouseEvent)
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{
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#if 0 //不需要这个功能
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if (line != 0 && myMode == InsertLine) {
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QList<QGraphicsItem *> startItems = items(line->line().p1());
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if (startItems.count() && startItems.first() == line)
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startItems.removeFirst();
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QList<QGraphicsItem *> endItems = items(line->line().p2());
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if (endItems.count() && endItems.first() == line)
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endItems.removeFirst();
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removeItem(line);
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delete line;
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//! [11] //! [12]
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if (startItems.count() > 0 && endItems.count() > 0 &&
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startItems.first()->type() == DiagramItem::Type &&
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endItems.first()->type() == DiagramItem::Type &&
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startItems.first() != endItems.first()) {
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DiagramItem *startItem =
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qgraphicsitem_cast<DiagramItem *>(startItems.first());
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DiagramItem *endItem =
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qgraphicsitem_cast<DiagramItem *>(endItems.first());
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Arrow *arrow = new Arrow(startItem, endItem);
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arrow->setColor(myLineColor);
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startItem->addArrow(arrow);
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endItem->addArrow(arrow);
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arrow->setZValue(-1000.0);
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addItem(arrow);
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arrow->updatePosition();
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}
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}
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//! [12] //! [13]
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line = 0;
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#endif
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QGraphicsScene::mouseReleaseEvent(mouseEvent);
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//QRectF Rect=QGraphicsScene.itemsBoundingRect();
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//qDebug()<<"GraphicsScene itemsBoundingRect "<<itemsBoundingRect();
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//qDebug()<<"GraphicsScene toRect "<<itemsBoundingRect().pos();
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//qDebug()<<"GraphicsScene rect "<<sceneRect();
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//qDebug()<<"RectF.y "<<itemsBoundingRect().y();
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//qDebug()<<"RectF.height "<<itemsBoundingRect().height();
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//qDebug()<<"RectF.width "<<itemsBoundingRect().width();
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//qDebug()<<"asdfasdf";
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//qDebug()<<"GraphicsScene "<<sceneRect();
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//emit xmlContentChanged();
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}
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//! [13]
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//! [14]
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bool PicScene::isItemChange(int type)
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{
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foreach (QGraphicsItem *item, selectedItems()) {
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if (item->type() == type)
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return true;
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}
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return false;
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}
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//! [14]
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void PicScene::keyPressEvent(QKeyEvent *event)
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{
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QGraphicsScene::keyPressEvent(event);
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}
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#endif
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