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+/****************************************************************************
+**
+** Copyright (C) 2012 Nokia Corporation and/or its subsidiary(-ies).
+** Contact: http://www.qt-project.org/
+**
+** This file is part of the examples of the Qt Toolkit.
+**
+** $QT_BEGIN_LICENSE:BSD$
+** You may use this file under the terms of the BSD license as follows:
+**
+** "Redistribution and use in source and binary forms, with or without
+** modification, are permitted provided that the following conditions are
+** met:
+** * Redistributions of source code must retain the above copyright
+** notice, this list of conditions and the following disclaimer.
+** * Redistributions in binary form must reproduce the above copyright
+** notice, this list of conditions and the following disclaimer in
+** the documentation and/or other materials provided with the
+** distribution.
+** * Neither the name of Nokia Corporation and its Subsidiary(-ies) nor
+** the names of its contributors may be used to endorse or promote
+** products derived from this software without specific prior written
+** permission.
+**
+** THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
+** "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
+** LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
+** A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
+** OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
+** SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
+** LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
+** DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
+** THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
+** (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
+** OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE."
+**
+** $QT_END_LICENSE$
+**
+****************************************************************************/
+
+#ifndef MASKEDMOUSEAREA_H
+#define MASKEDMOUSEAREA_H
+
+#include <QImage>
+#include <QQuickItem>
+
+
+class MaskedMouseArea : public QQuickItem
+{
+ Q_OBJECT
+ Q_PROPERTY(bool pressed READ isPressed NOTIFY pressedChanged)
+ Q_PROPERTY(bool containsMouse READ containsMouse NOTIFY containsMouseChanged)
+ Q_PROPERTY(QUrl maskSource READ maskSource WRITE setMaskSource NOTIFY maskSourceChanged)
+ Q_PROPERTY(qreal alphaThreshold READ alphaThreshold WRITE setAlphaThreshold NOTIFY alphaThresholdChanged)
+
+public:
+ MaskedMouseArea(QQuickItem *parent = 0);
+
+ bool contains(const QPointF &point) const;
+
+ bool isPressed() const { return m_pressed; }
+ bool containsMouse() const { return m_containsMouse; }
+
+ QUrl maskSource() const { return m_maskSource; }
+ void setMaskSource(const QUrl &source);
+
+ qreal alphaThreshold() const { return m_alphaThreshold; }
+ void setAlphaThreshold(qreal threshold);
+
+signals:
+ void pressed();
+ void released();
+ void clicked();
+ void canceled();
+ void pressedChanged();
+ void maskSourceChanged();
+ void containsMouseChanged();
+ void alphaThresholdChanged();
+
+protected:
+ void setPressed(bool pressed);
+ void setContainsMouse(bool containsMouse);
+ void mousePressEvent(QMouseEvent *event);
+ void mouseReleaseEvent(QMouseEvent *event);
+ void hoverEnterEvent(QHoverEvent *event);
+ void hoverLeaveEvent(QHoverEvent *event);
+ void mouseUngrabEvent();
+
+private:
+ bool m_pressed;
+ QUrl m_maskSource;
+ QImage m_maskImage;
+ QPointF m_pressPoint;
+ qreal m_alphaThreshold;
+ bool m_containsMouse;
+};
+
+#endif