colorroundrectbutton.h

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/* @@@LICENSE
*
*      Copyright (c) 2011-2012 Hewlett-Packard Development Company, L.P.
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
* LICENSE@@@ */




#ifndef COLORROUNDRECTBUTTON_H_
#define COLORROUNDRECTBUTTON_H_

#include "labeledbutton.h"
#include <QColor>
#include <QStateMachine>
#include <QState>

class QGraphicsSceneMouseEvent;
class QGesture;
class QGestureEvent;
class QTouchEvent;
class QPanGesture;
class QSwipeGesture;
class QPinchGesture;
class QTapAndHoldGesture;
class QTapGesture;
class FlickGesture;
class PixmapObject;

class ColorRoundRectButton : public LabeledButton
{
        Q_OBJECT
        Q_PROPERTY(bool stateActive READ stateActive WRITE setStateActive NOTIFY signalStateActiveChanged)

public:
        ColorRoundRectButton(const QSize& encompassingRectSize,const QString& label,QColor normalColor);
        ColorRoundRectButton(const QSize& encompassingRectSize,const QString& label,QColor normalColor,QColor activeColor);
        virtual ~ColorRoundRectButton();
        virtual void commonCtor(QSize requestedSize);

        virtual void paint(QPainter *painter, const QStyleOptionGraphicsItem *option=0,QWidget *widget=0);
        virtual void paintOffscreen(QPainter * painter);
        //TODO: need other paintOffscreen flavors, e.g. PixmapHugeObject

        virtual bool valid();

        virtual bool stateActive() const;
        virtual void setStateActive(bool v);

Q_SIGNALS:

        void signalFirstContact();
        void signalContact();
        void signalRelease();
        void signalLastRelease();
        void signalActivated();

        void signalStateActiveChanged();
        void signalFSMActivate();
        void signalFSMDeactivate();

protected:

        virtual bool touchStartEvent(QTouchEvent *event);
        virtual bool touchUpdateEvent(QTouchEvent *event);
        virtual bool touchEndEvent(QTouchEvent *event);

        virtual bool sceneEvent(QEvent * event);

        //overriding these to suppress them from generating signals
        virtual bool tapAndHoldGesture(QTapAndHoldGesture *tapHoldEvent);
        virtual bool tapGesture(QTapGesture *tapEvent);
        virtual void mousePressEvent(QGraphicsSceneMouseEvent *event);
        virtual void mouseMoveEvent(QGraphicsSceneMouseEvent *event);
        virtual void mouseReleaseEvent(QGraphicsSceneMouseEvent *event);

        virtual void setupFSM();

protected:

        QColor                                  m_normalColor;
        QColor                                  m_activeColor;
        QColor                                  m_currentColor;

        int                             m_xRndFactor;
        int                             m_yRndFactor;

        bool                    m_stateActive;
        QStateMachine * m_p_buttonFSM;
        qint32                                  m_touchCount;
        QState * m_p_stateNormal;
        QState * m_p_stateActive;
        bool m_valid;
};

#endif /* COLORROUNDRECTBUTTON_H_ */