/****************************************************************************

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** Copyright (C) 2010 Nokia Corporation and/or its subsidiary(-ies).

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****************************************************************************/

#ifndef QPIXELTOOL_H

#define QPIXELTOOL_H

#include <qwidget.h>

#include <qpixmap.h>

QT_BEGIN_NAMESPACE

class QPixelTool : public QWidget

{

    Q_OBJECT

public:

    QPixelTool(QWidget *parent = 0);

    ~QPixelTool();

    void timerEvent(QTimerEvent *event);

    void paintEvent(QPaintEvent *event);

    void keyPressEvent(QKeyEvent *event);

    void keyReleaseEvent(QKeyEvent *event);

    void resizeEvent(QResizeEvent *event);

    void mouseMoveEvent(QMouseEvent *event);

    void mousePressEvent(QMouseEvent *event);

    void mouseReleaseEvent(QMouseEvent *event);

    void contextMenuEvent(QContextMenuEvent *event);

    QSize sizeHint() const;

    void setPreviewImage(const QImage &image);

public slots:

    void setZoom(int zoom);

    void setGridSize(int gridSize);

    void toggleGrid();

    void toggleFreeze();

    void setZoomVisible(bool visible);

    void copyToClipboard();

    void saveToFile();

    void increaseGridSize() { setGridSize(m_gridSize + 1); }

    void decreaseGridSize() { setGridSize(m_gridSize - 1); }

    void increaseZoom() { setZoom(m_zoom + 1); }

    void decreaseZoom() { setZoom(m_zoom - 1); }

private:

    void grabScreen();

    void startZoomVisibleTimer();

    void startGridSizeVisibleTimer();

    bool m_freeze;

    bool m_displayZoom;

    bool m_displayGridSize;

    bool m_mouseDown;

    bool m_autoUpdate;

    bool m_preview_mode;

    int m_gridActive;

    int m_zoom;

    int m_gridSize;

    int m_updateId;

    int m_displayZoomId;

    int m_displayGridSizeId;

    int m_currentColor;

    QPoint m_lastMousePos;

    QPoint m_dragStart;

    QPoint m_dragCurrent;

    QPixmap m_buffer;

    QSize m_initialSize;

    QImage m_preview_image;

};

QT_END_NAMESPACE

#endif // QPIXELTOOL_H