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Diffstat (limited to 'src/gui/painting/qpainter_p.h')
| -rw-r--r-- | src/gui/painting/qpainter_p.h | 273 |
1 files changed, 273 insertions, 0 deletions
diff --git a/src/gui/painting/qpainter_p.h b/src/gui/painting/qpainter_p.h new file mode 100644 index 0000000000..205c10a09f --- /dev/null +++ b/src/gui/painting/qpainter_p.h @@ -0,0 +1,273 @@ +/**************************************************************************** +** +** Copyright (C) 2011 Nokia Corporation and/or its subsidiary(-ies). +** All rights reserved. +** Contact: Nokia Corporation (qt-info@nokia.com) +** +** This file is part of the QtGui module of the Qt Toolkit. +** +** $QT_BEGIN_LICENSE:LGPL$ +** No Commercial Usage +** This file contains pre-release code and may not be distributed. +** You may use this file in accordance with the terms and conditions +** contained in the Technology Preview License Agreement accompanying +** this package. +** +** GNU Lesser General Public License Usage +** Alternatively, this file may be used under the terms of the GNU Lesser +** General Public License version 2.1 as published by the Free Software +** Foundation and appearing in the file LICENSE.LGPL included in the +** packaging of this file. Please review the following information to +** ensure the GNU Lesser General Public License version 2.1 requirements +** will be met: http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html. +** +** In addition, as a special exception, Nokia gives you certain additional +** rights. These rights are described in the Nokia Qt LGPL Exception +** version 1.1, included in the file LGPL_EXCEPTION.txt in this package. +** +** If you have questions regarding the use of this file, please contact +** Nokia at qt-info@nokia.com. +** +** +** +** +** +** +** +** +** $QT_END_LICENSE$ +** +****************************************************************************/ + +#ifndef QPAINTER_P_H +#define QPAINTER_P_H + +// +// W A R N I N G +// ------------- +// +// This file is not part of the Qt API. It exists purely as an +// implementation detail. This header file may change from version to +// version without notice, or even be removed. +// +// We mean it. +// + +#include "QtGui/qbrush.h" +#include "QtGui/qfont.h" +#include "QtGui/qpen.h" +#include "QtGui/qregion.h" +#include "QtGui/qmatrix.h" +#include "QtGui/qpainter.h" +#include "QtGui/qpainterpath.h" +#include "QtGui/qpaintengine.h" +#include <QtCore/qhash.h> + +#include <private/qpen_p.h> + +QT_BEGIN_NAMESPACE + +class QPaintEngine; +class QEmulationPaintEngine; +class QPaintEngineEx; +struct QFixedPoint; + +struct QTLWExtra; + +struct DataPtrContainer { + void *ptr; +}; + +inline void *data_ptr(const QTransform &t) { return (DataPtrContainer *) &t; } +inline bool qtransform_fast_equals(const QTransform &a, const QTransform &b) { return data_ptr(a) == data_ptr(b); } + +// QPen inline functions... +inline QPen::DataPtr &data_ptr(const QPen &p) { return const_cast<QPen &>(p).data_ptr(); } +inline bool qpen_fast_equals(const QPen &a, const QPen &b) { return data_ptr(a) == data_ptr(b); } +inline QBrush qpen_brush(const QPen &p) { return data_ptr(p)->brush; } +inline qreal qpen_widthf(const QPen &p) { return data_ptr(p)->width; } +inline Qt::PenStyle qpen_style(const QPen &p) { return data_ptr(p)->style; } +inline Qt::PenCapStyle qpen_capStyle(const QPen &p) { return data_ptr(p)->capStyle; } +inline Qt::PenJoinStyle qpen_joinStyle(const QPen &p) { return data_ptr(p)->joinStyle; } + +// QBrush inline functions... +inline QBrush::DataPtr &data_ptr(const QBrush &p) { return const_cast<QBrush &>(p).data_ptr(); } +inline bool qbrush_fast_equals(const QBrush &a, const QBrush &b) { return data_ptr(a) == data_ptr(b); } +inline Qt::BrushStyle qbrush_style(const QBrush &b) { return data_ptr(b)->style; } +inline const QColor &qbrush_color(const QBrush &b) { return data_ptr(b)->color; } +inline bool qbrush_has_transform(const QBrush &b) { return data_ptr(b)->transform.type() > QTransform::TxNone; } + +class QPainterClipInfo +{ +public: + enum ClipType { RegionClip, PathClip, RectClip, RectFClip }; + + QPainterClipInfo(const QPainterPath &p, Qt::ClipOperation op, const QTransform &m) : + clipType(PathClip), matrix(m), operation(op), path(p) { } + + QPainterClipInfo(const QRegion &r, Qt::ClipOperation op, const QTransform &m) : + clipType(RegionClip), matrix(m), operation(op), region(r) { } + + QPainterClipInfo(const QRect &r, Qt::ClipOperation op, const QTransform &m) : + clipType(RectClip), matrix(m), operation(op), rect(r) { } + + QPainterClipInfo(const QRectF &r, Qt::ClipOperation op, const QTransform &m) : + clipType(RectFClip), matrix(m), operation(op), rectf(r) { } + + ClipType clipType; + QTransform matrix; + Qt::ClipOperation operation; + QPainterPath path; + QRegion region; + QRect rect; + QRectF rectf; + + // ### +// union { +// QRegionData *d; +// QPainterPathPrivate *pathData; + +// struct { +// int x, y, w, h; +// } rectData; +// struct { +// qreal x, y, w, h; +// } rectFData; +// }; + +}; + + +class Q_GUI_EXPORT QPainterState : public QPaintEngineState +{ +public: + QPainterState(); + QPainterState(const QPainterState *s); + virtual ~QPainterState(); + void init(QPainter *p); + + QPointF brushOrigin; + QFont font; + QFont deviceFont; + QPen pen; + QBrush brush; + QBrush bgBrush; // background brush + QRegion clipRegion; + QPainterPath clipPath; + Qt::ClipOperation clipOperation; + QPainter::RenderHints renderHints; + QList<QPainterClipInfo> clipInfo; // ### Make me smaller and faster to copy around... + QTransform worldMatrix; // World transformation matrix, not window and viewport + QTransform matrix; // Complete transformation matrix, + QTransform redirectionMatrix; + int wx, wy, ww, wh; // window rectangle + int vx, vy, vw, vh; // viewport rectangle + qreal opacity; + + uint WxF:1; // World transformation + uint VxF:1; // View transformation + uint clipEnabled:1; + + Qt::BGMode bgMode; + QPainter *painter; + Qt::LayoutDirection layoutDirection; + QPainter::CompositionMode composition_mode; + uint emulationSpecifier; + uint changeFlags; +}; + +struct QPainterDummyState +{ + QFont font; + QPen pen; + QBrush brush; + QTransform transform; +}; + +class QRawFont; +class QPainterPrivate +{ + Q_DECLARE_PUBLIC(QPainter) +public: + QPainterPrivate(QPainter *painter) + : q_ptr(painter), d_ptrs(0), state(0), dummyState(0), txinv(0), inDestructor(false), d_ptrs_size(0), + refcount(1), device(0), original_device(0), helper_device(0), engine(0), emulationEngine(0), + extended(0) + { + } + + ~QPainterPrivate(); + + QPainter *q_ptr; + QPainterPrivate **d_ptrs; + + QPainterState *state; + QVector<QPainterState*> states; + + mutable QPainterDummyState *dummyState; + + QTransform invMatrix; + uint txinv:1; + uint inDestructor : 1; + uint d_ptrs_size; + uint refcount; + + enum DrawOperation { StrokeDraw = 0x1, + FillDraw = 0x2, + StrokeAndFillDraw = 0x3 + }; + + QPainterDummyState *fakeState() const { + if (!dummyState) + dummyState = new QPainterDummyState(); + return dummyState; + } + + void updateEmulationSpecifier(QPainterState *s); + void updateStateImpl(QPainterState *state); + void updateState(QPainterState *state); + + void draw_helper(const QPainterPath &path, DrawOperation operation = StrokeAndFillDraw); + void drawStretchedGradient(const QPainterPath &path, DrawOperation operation); + void drawOpaqueBackground(const QPainterPath &path, DrawOperation operation); + +#if !defined(QT_NO_RAWFONT) + void drawGlyphs(quint32 *glyphArray, QFixedPoint *positionArray, int glyphCount, + const QRawFont &font, bool overline = false, bool underline = false, + bool strikeOut = false); +#endif + + void updateMatrix(); + void updateInvMatrix(); + + int rectSubtraction() const { + return state->pen.style() != Qt::NoPen && state->pen.width() == 0 ? 1 : 0; + } + + void checkEmulation(); + + static QPainterPrivate *get(QPainter *painter) + { + return painter->d_ptr.data(); + } + + QTransform viewTransform() const; + static bool attachPainterPrivate(QPainter *q, QPaintDevice *pdev); + void detachPainterPrivate(QPainter *q); + + QPaintDevice *device; + QPaintDevice *original_device; + QPaintDevice *helper_device; + QPaintEngine *engine; + QEmulationPaintEngine *emulationEngine; + QPaintEngineEx *extended; + QBrush colorBrush; // for fill with solid color +}; + +Q_GUI_EXPORT void qt_draw_helper(QPainterPrivate *p, const QPainterPath &path, QPainterPrivate::DrawOperation operation); + +QString qt_generate_brush_key(const QBrush &brush); + +QT_END_NAMESPACE + +#endif // QPAINTER_P_H |