CardLoading.h

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/* @@@LICENSE
*
*      Copyright (c) 2009-2012 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 CARDLOADING_H
#define CARDLOADING_H

#include "Common.h"

#include "AnimationEquations.h"

#include <QPainter>
#include <QSequentialAnimationGroup>
#include <QPropertyAnimation>
#include <QTimer>

class Window;
class CardRoundedCornerShaderStage;

class CardLoading : public QObject
{
        Q_OBJECT
        Q_PROPERTY(qreal pulseOpacity READ pulseOpacity WRITE setPulseOpacity)
        Q_PROPERTY(qreal fadeOpacity READ fadeOpacity WRITE setFadeOpacity)

public:

        CardLoading(Window* win);
        ~CardLoading();

        // tell the loading animation to start transitioning to a finished state
        void finish();

        // are we trying to finish?
        bool finishing() const;

        void paint(QPainter* painter, bool maximized);

        void setScale(float scale);

Q_SIGNALS:

        void signalLoadingFinished();

private Q_SLOTS:

        void slotCrossFadeFinished();
        void slotPulseTimeout();

private:

        qreal pulseOpacity() const { return m_pulseOpacity; }
        void setPulseOpacity(qreal opacity);

        qreal fadeOpacity() const { return m_fadeOpacity; }
        void setFadeOpacity(qreal opacity);

        void initializeRoundedCornerStage();

        Window* m_win;
        
        qreal m_fadeOpacity;
        qreal m_pulseOpacity;
        qreal m_pulseOpacityAnimInc;
        bool m_pulseIn;

        QTimer m_pulseTimer;
        QTimer m_pulsePauseTimer;
        QPropertyAnimation m_fadeAnimation;

        QPixmap m_background;
        QPixmap m_icon;
        static unsigned int s_glowRefCount;
        static QPixmap* s_glow;
        bool m_showAnimation;

        static unsigned int s_backgroundRefCount;
        static QPixmap* s_background;
        CardRoundedCornerShaderStage* m_shader;
};

#endif /* CARDLOADING_H */