b3bed3759b
On graphicsView mode, if a homography rectangle is selected, the corresponding object in the objects pane is selected git-svn-id: http://find-object.googlecode.com/svn/trunk/find_object@271 620bd6b2-0a58-f614-fd9a-1bd335dccda9
101 lines
2.4 KiB
C++
101 lines
2.4 KiB
C++
/*
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* Copyright (C) 2011, Mathieu Labbe - IntRoLab - Universite de Sherbrooke
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*/
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#include "RectItem.h"
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#include <QtGui/QPen>
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#include <QtGui/QBrush>
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#include <QtGui/QGraphicsScene>
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RectItem::RectItem(int id, const QRectF &rect, QGraphicsItem * parent) :
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QGraphicsRectItem(rect, parent),
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placeHolder_(0),
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id_(id)
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{
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this->setAcceptsHoverEvents(true);
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this->setFlag(QGraphicsItem::ItemIsFocusable, true);
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this->setFlag(QGraphicsItem::ItemIsSelectable, true);
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}
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RectItem::~RectItem()
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{
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}
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void RectItem::setColor(const QColor & color)
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{
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this->setPen(QPen(color));
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this->setBrush(QBrush(color));
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if(placeHolder_)
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{
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QList<QGraphicsItem *> items = placeHolder_->children();
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if(items.size())
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{
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((QGraphicsTextItem *)items.front())->setDefaultTextColor(this->pen().color().rgb());
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}
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}
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}
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void RectItem::showDescription()
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{
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if(!placeHolder_ || !placeHolder_->isVisible())
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{
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if(!placeHolder_)
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{
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placeHolder_ = new QGraphicsRectItem();
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placeHolder_->setVisible(false);
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this->scene()->addItem(placeHolder_);
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placeHolder_->setBrush(QBrush(QColor ( 0, 0, 0, 170 ))); // Black transparent background
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QGraphicsTextItem * text = new QGraphicsTextItem(placeHolder_);
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text->setDefaultTextColor(this->pen().color().rgb());
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text->setPlainText(tr("Object=%1").arg(id_));
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placeHolder_->setRect(text->boundingRect());
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}
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QPen pen = this->pen();
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this->setPen(QPen(pen.color(), pen.width()+2));
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placeHolder_->setZValue(this->zValue()+1);
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placeHolder_->setPos(0,0);
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placeHolder_->setVisible(true);
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emit hovered(id_);
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}
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}
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void RectItem::hideDescription()
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{
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if(placeHolder_ && placeHolder_->isVisible())
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{
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placeHolder_->setVisible(false);
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this->setPen(QPen(pen().color(), pen().width()-2));
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}
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}
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void RectItem::hoverEnterEvent ( QGraphicsSceneHoverEvent * event )
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{
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this->showDescription();
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QGraphicsRectItem::hoverEnterEvent(event);
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}
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void RectItem::hoverLeaveEvent ( QGraphicsSceneHoverEvent * event )
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{
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if(!this->hasFocus())
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{
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this->hideDescription();
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}
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QGraphicsRectItem::hoverEnterEvent(event);
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}
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void RectItem::focusInEvent ( QFocusEvent * event )
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{
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this->showDescription();
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QGraphicsRectItem::focusInEvent(event);
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}
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void RectItem::focusOutEvent ( QFocusEvent * event )
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{
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this->hideDescription();
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QGraphicsRectItem::focusOutEvent(event);
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}
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