forked from qt-creator/qt-creator
96 lines
2.9 KiB
C++
96 lines
2.9 KiB
C++
/**************************************************************************
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**
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** This file is part of Qt Creator
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**
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** Copyright (c) 2010 Nokia Corporation and/or its subsidiary(-ies).
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**
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** Contact: Nokia Corporation (qt-info@nokia.com)
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**
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** Commercial Usage
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**
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** Licensees holding valid Qt Commercial licenses may use this file in
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** accordance with the Qt Commercial License Agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and Nokia.
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**
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** GNU Lesser General Public License Usage
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**
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 as published by the Free Software
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** Foundation and appearing in the file LICENSE.LGPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU Lesser General Public License version 2.1 requirements
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** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** If you are unsure which license is appropriate for your use, please
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** contact the sales department at http://qt.nokia.com/contact.
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**
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**************************************************************************/
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#include "selectionrectangle.h"
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#include "qmlviewerconstants.h"
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#include <QPen>
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#include <QGraphicsScene>
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#include <QtDebug>
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#include <cmath>
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#include <QGraphicsScene>
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namespace QmlViewer {
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class SelectionRectShape : public QGraphicsRectItem
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{
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public:
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SelectionRectShape(QGraphicsItem *parent = 0) : QGraphicsRectItem(parent) {}
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int type() const { return Constants::EditorItemType; }
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};
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SelectionRectangle::SelectionRectangle(QGraphicsObject *layerItem)
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: m_controlShape(new SelectionRectShape(layerItem)),
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m_layerItem(layerItem)
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{
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m_controlShape->setPen(QPen(Qt::black));
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m_controlShape->setBrush(QColor(128, 128, 128, 50));
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}
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SelectionRectangle::~SelectionRectangle()
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{
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if (m_layerItem)
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m_layerItem->scene()->removeItem(m_controlShape);
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}
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void SelectionRectangle::clear()
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{
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hide();
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}
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void SelectionRectangle::show()
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{
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m_controlShape->show();
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}
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void SelectionRectangle::hide()
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{
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m_controlShape->hide();
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}
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QRectF SelectionRectangle::rect() const
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{
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return m_controlShape->mapFromScene(m_controlShape->rect()).boundingRect();
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}
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void SelectionRectangle::setRect(const QPointF &firstPoint,
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const QPointF &secondPoint)
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{
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double firstX = std::floor(firstPoint.x()) + 0.5;
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double firstY = std::floor(firstPoint.y()) + 0.5;
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double secondX = std::floor(secondPoint.x()) + 0.5;
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double secondY = std::floor(secondPoint.y()) + 0.5;
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QPointF topLeftPoint(firstX < secondX ? firstX : secondX, firstY < secondY ? firstY : secondY);
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QPointF bottomRightPoint(firstX > secondX ? firstX : secondX, firstY > secondY ? firstY : secondY);
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QRectF rect(topLeftPoint, bottomRightPoint);
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m_controlShape->setRect(rect);
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}
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}
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