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     2 **

     3 ** Copyright (C) 2009 Nokia Corporation and/or its subsidiary(-ies).

     4 ** All rights reserved.

     5 ** Contact: Nokia Corporation (qt-info@nokia.com)

     6 **

     7 ** This file is part of the QtOpenGL module of the Qt Toolkit.

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     9 ** $QT_BEGIN_LICENSE:LGPL$

    10 ** No Commercial Usage

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    12 ** You may use this file in accordance with the terms and conditions

    13 ** contained in the Technology Preview License Agreement accompanying

    14 ** this package.

    15 **

    16 ** GNU Lesser General Public License Usage

    17 ** Alternatively, this file may be used under the terms of the GNU Lesser

    18 ** General Public License version 2.1 as published by the Free Software

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    24 ** In addition, as a special exception, Nokia gives you certain additional

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    38 ** $QT_END_LICENSE$

    39 **

    40 ****************************************************************************/

    41 

    42 #ifndef QPAINTENGINE_OPENGL_P_H

    43 #define QPAINTENGINE_OPENGL_P_H

    44 

    45 //

    46 //  W A R N I N G

    47 //  -------------

    48 //

    49 // This file is not part of the Qt API.  It exists for the convenience

    50 // of the QLibrary class.  This header file may change from

    51 // version to version without notice, or even be removed.

    52 //

    53 // We mean it.

    54 //

    55 

    56 #include <private/qpaintengineex_p.h>

    57 

    58 QT_BEGIN_NAMESPACE

    59 

    60 class QOpenGLPaintEnginePrivate;

    61 class QGLTexture;

    62 

    63 class QOpenGLPaintEngineState : public QPainterState

    64 {

    65 public:

    66     QOpenGLPaintEngineState(QOpenGLPaintEngineState &other);

    67     QOpenGLPaintEngineState();

    68     ~QOpenGLPaintEngineState();

    69 

    70     QRegion clipRegion;

    71     bool hasClipping;

    72     QRect fastClip;

    73     uint depthClipId;

    74 };

    75 

    76 class QOpenGLPaintEngine : public QPaintEngineEx

    77 {

    78     Q_DECLARE_PRIVATE(QOpenGLPaintEngine)

    79 public:

    80     QOpenGLPaintEngine();

    81     ~QOpenGLPaintEngine();

    82 

    83     bool begin(QPaintDevice *pdev);

    84     bool end();

    85 

    86     // new stuff

    87     void clipEnabledChanged();

    88     void penChanged();

    89     void brushChanged();

    90     void brushOriginChanged();

    91     void opacityChanged();

    92     void compositionModeChanged();

    93     void renderHintsChanged();

    94     void transformChanged();

    95 

    96     void fill(const QVectorPath &path, const QBrush &brush);

    97     void clip(const QVectorPath &path, Qt::ClipOperation op);

    98 

    99     void setState(QPainterState *s);

   100     QPainterState *createState(QPainterState *orig) const;

   101     inline QOpenGLPaintEngineState *state() {

   102         return static_cast<QOpenGLPaintEngineState *>(QPaintEngineEx::state());

   103     }

   104     inline const QOpenGLPaintEngineState *state() const {

   105         return static_cast<const QOpenGLPaintEngineState *>(QPaintEngineEx::state());

   106     }

   107 

   108 

   109     // old stuff

   110     void updateState(const QPaintEngineState &state);

   111 

   112     void updatePen(const QPen &pen);

   113     void updateBrush(const QBrush &brush, const QPointF &pt);

   114     void updateFont(const QFont &font);

   115     void updateMatrix(const QTransform &matrix);

   116     void updateClipRegion(const QRegion &region, Qt::ClipOperation op);

   117     void updateRenderHints(QPainter::RenderHints hints);

   118     void updateCompositionMode(QPainter::CompositionMode composition_mode);

   119 

   120     void drawRects(const QRectF *r, int rectCount);

   121     void drawLines(const QLineF *lines, int lineCount);

   122     void drawPoints(const QPointF *p, int pointCount);

   123     void drawRects(const QRect *r, int rectCount);

   124     void drawLines(const QLine *lines, int lineCount);

   125     void drawPoints(const QPoint *p, int pointCount);

   126 

   127     void drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr);

   128 

   129     void drawPath(const QPainterPath &path);

   130     void drawPolygon(const QPointF *points, int pointCount, PolygonDrawMode mode);

   131     void drawPolygon(const QPoint *points, int pointCount, PolygonDrawMode mode);

   132     void drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPointF &s);

   133     void drawImage(const QRectF &r, const QImage &image, const QRectF &sr,

   134                    Qt::ImageConversionFlags conversionFlags);

   135     void drawTextItem(const QPointF &p, const QTextItem &ti);

   136 

   137     void drawEllipse(const QRectF &rect);

   138 

   139 #ifdef Q_WS_WIN

   140     HDC handle() const;

   141 #else

   142     Qt::HANDLE handle() const;

   143 #endif

   144     inline Type type() const { return QPaintEngine::OpenGL; }

   145 

   146 private:

   147     void drawPolyInternal(const QPolygonF &pa, bool close = true);

   148     void drawTextureRect(int tx_width, int tx_height, const QRectF &r, const QRectF &sr,

   149                          GLenum target, QGLTexture *tex);

   150     Q_DISABLE_COPY(QOpenGLPaintEngine)

   151 };

   152 

   153 

   154 QT_END_NAMESPACE

   155 

   156 #endif // QPAINTENGINE_OPENGL_P_H