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257 lines
9.1 KiB
C++
257 lines
9.1 KiB
C++
/****************************************************************************
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**
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** Copyright (C) 2015 The Qt Company Ltd.
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** Contact: http://www.qt.io/licensing/
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**
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** This file is part of the QtGui module of the Qt Toolkit.
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**
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** $QT_BEGIN_LICENSE:LGPL$
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** Commercial License Usage
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** Licensees holding valid commercial Qt licenses may use this file in
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** accordance with the commercial license agreement provided with the
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** Software or, alternatively, in accordance with the terms contained in
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** a written agreement between you and The Qt Company. For licensing terms
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** and conditions see http://www.qt.io/terms-conditions. For further
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** information use the contact form at http://www.qt.io/contact-us.
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**
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** GNU Lesser General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU Lesser
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** General Public License version 2.1 or version 3 as published by the Free
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** Software Foundation and appearing in the file LICENSE.LGPLv21 and
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** LICENSE.LGPLv3 included in the packaging of this file. Please review the
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** following information to ensure the GNU Lesser General Public License
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** requirements will be met: https://www.gnu.org/licenses/lgpl.html and
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** http://www.gnu.org/licenses/old-licenses/lgpl-2.1.html.
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**
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** As a special exception, The Qt Company gives you certain additional
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** rights. These rights are described in The Qt Company LGPL Exception
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** version 1.1, included in the file LGPL_EXCEPTION.txt in this package.
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**
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** GNU General Public License Usage
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** Alternatively, this file may be used under the terms of the GNU
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** General Public License version 3.0 as published by the Free Software
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** Foundation and appearing in the file LICENSE.GPL included in the
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** packaging of this file. Please review the following information to
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** ensure the GNU General Public License version 3.0 requirements will be
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** met: http://www.gnu.org/copyleft/gpl.html.
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**
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** $QT_END_LICENSE$
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**
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****************************************************************************/
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#ifndef QPAINTENGINE_MAC_P_H
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#define QPAINTENGINE_MAC_P_H
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//
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// W A R N I N G
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// -------------
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//
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// This file is not part of the Qt API. It exists purely as an
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// implementation detail. This header file may change from version to
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// version without notice, or even be removed.
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//
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// We mean it.
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//
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#include "QtGui/qpaintengine.h"
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#include "qt_mac_p.h"
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#include "qpaintengine_p.h"
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#include "qpolygonclipper_p.h"
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#include "qfont_p.h"
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#include "QtCore/qhash.h"
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typedef struct CGColorSpace *CGColorSpaceRef;
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QT_BEGIN_NAMESPACE
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class QCoreGraphicsPaintEnginePrivate;
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class QCoreGraphicsPaintEngine : public QPaintEngine
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{
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Q_DECLARE_PRIVATE(QCoreGraphicsPaintEngine)
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public:
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QCoreGraphicsPaintEngine();
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~QCoreGraphicsPaintEngine();
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bool begin(QPaintDevice *pdev);
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bool end();
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static CGColorSpaceRef macGenericColorSpace();
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static CGColorSpaceRef macDisplayColorSpace(const QWidget *widget = 0);
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void updateState(const QPaintEngineState &state);
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void updatePen(const QPen &pen);
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void updateBrush(const QBrush &brush, const QPointF &pt);
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void updateFont(const QFont &font);
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void updateOpacity(qreal opacity);
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void updateMatrix(const QTransform &matrix);
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void updateTransform(const QTransform &matrix);
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void updateClipRegion(const QRegion ®ion, Qt::ClipOperation op);
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void updateClipPath(const QPainterPath &path, Qt::ClipOperation op);
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void updateCompositionMode(QPainter::CompositionMode mode);
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void updateRenderHints(QPainter::RenderHints hints);
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void drawLines(const QLineF *lines, int lineCount);
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void drawRects(const QRectF *rects, int rectCount);
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void drawPoints(const QPointF *p, int pointCount);
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void drawEllipse(const QRectF &r);
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void drawPath(const QPainterPath &path);
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void drawPolygon(const QPointF *points, int pointCount, PolygonDrawMode mode);
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void drawPixmap(const QRectF &r, const QPixmap &pm, const QRectF &sr);
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void drawTiledPixmap(const QRectF &r, const QPixmap &pixmap, const QPointF &s);
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void drawTextItem(const QPointF &pos, const QTextItem &item);
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void drawImage(const QRectF &r, const QImage &pm, const QRectF &sr,
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Qt::ImageConversionFlags flags = Qt::AutoColor);
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Type type() const { return QPaintEngine::CoreGraphics; }
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CGContextRef handle() const;
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static void initialize();
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static void cleanup();
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static void clearColorSpace(QWidget* w);
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QPainter::RenderHints supportedRenderHints() const;
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//avoid partial shadowed overload warnings...
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void drawLines(const QLine *lines, int lineCount) { QPaintEngine::drawLines(lines, lineCount); }
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void drawRects(const QRect *rects, int rectCount) { QPaintEngine::drawRects(rects, rectCount); }
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void drawPoints(const QPoint *p, int pointCount) { QPaintEngine::drawPoints(p, pointCount); }
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void drawEllipse(const QRect &r) { QPaintEngine::drawEllipse(r); }
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void drawPolygon(const QPoint *points, int pointCount, PolygonDrawMode mode)
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{ QPaintEngine::drawPolygon(points, pointCount, mode); }
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bool supportsTransformations(qreal, const QTransform &) const { return true; };
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protected:
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friend class QMacPrintEngine;
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friend class QMacPrintEnginePrivate;
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friend void qt_mac_display_change_callbk(CGDirectDisplayID, CGDisplayChangeSummaryFlags, void *);
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friend void qt_color_profile_changed(CFNotificationCenterRef center, void *,
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CFStringRef , const void *, CFDictionaryRef);
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QCoreGraphicsPaintEngine(QPaintEnginePrivate &dptr);
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private:
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static bool m_postRoutineRegistered;
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static CGColorSpaceRef m_genericColorSpace;
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static QHash<QWidget*, CGColorSpaceRef> m_displayColorSpaceHash; // window -> color space
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static void cleanUpMacColorSpaces();
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Q_DISABLE_COPY(QCoreGraphicsPaintEngine)
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};
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/*****************************************************************************
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Private data
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*****************************************************************************/
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class QCoreGraphicsPaintEnginePrivate : public QPaintEnginePrivate
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{
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Q_DECLARE_PUBLIC(QCoreGraphicsPaintEngine)
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public:
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QCoreGraphicsPaintEnginePrivate()
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: hd(0), shading(0), stackCount(0), complexXForm(false), disabledSmoothFonts(false)
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{
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}
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struct {
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QPen pen;
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QBrush brush;
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uint clipEnabled : 1;
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QRegion clip;
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QTransform transform;
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} current;
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//state info (shared with QD)
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CGAffineTransform orig_xform;
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//cg structures
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CGContextRef hd;
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CGShadingRef shading;
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int stackCount;
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bool complexXForm;
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bool disabledSmoothFonts;
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enum { CosmeticNone, CosmeticTransformPath, CosmeticSetPenWidth } cosmeticPen;
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// pixel and cosmetic pen size in user coordinates.
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QPointF pixelSize;
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float cosmeticPenSize;
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//internal functions
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enum { CGStroke=0x01, CGEOFill=0x02, CGFill=0x04 };
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void drawPath(uchar ops, CGMutablePathRef path = 0);
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void setClip(const QRegion *rgn=0);
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void resetClip();
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void setFillBrush(const QPointF &origin=QPoint());
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void setStrokePen(const QPen &pen);
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inline void saveGraphicsState();
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inline void restoreGraphicsState();
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float penOffset();
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QPointF devicePixelSize(CGContextRef context);
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float adjustPenWidth(float penWidth);
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inline void setTransform(const QTransform *matrix=0)
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{
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CGContextConcatCTM(hd, CGAffineTransformInvert(CGContextGetCTM(hd)));
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CGAffineTransform xform = orig_xform;
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if(matrix) {
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extern CGAffineTransform qt_mac_convert_transform_to_cg(const QTransform &);
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xform = CGAffineTransformConcat(qt_mac_convert_transform_to_cg(*matrix), xform);
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}
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CGContextConcatCTM(hd, xform);
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CGContextSetTextMatrix(hd, xform);
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}
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};
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inline void QCoreGraphicsPaintEnginePrivate::saveGraphicsState()
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{
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++stackCount;
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CGContextSaveGState(hd);
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}
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inline void QCoreGraphicsPaintEnginePrivate::restoreGraphicsState()
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{
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--stackCount;
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Q_ASSERT(stackCount >= 0);
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CGContextRestoreGState(hd);
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}
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class QMacQuartzPaintDevice : public QPaintDevice
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{
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public:
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QMacQuartzPaintDevice(CGContextRef cg, int width, int height, int bytesPerLine)
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: mCG(cg), mWidth(width), mHeight(height), mBytesPerLine(bytesPerLine)
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{ }
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int devType() const { return QInternal::MacQuartz; }
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CGContextRef cgContext() const { return mCG; }
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int metric(PaintDeviceMetric metric) const {
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switch (metric) {
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case PdmWidth:
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return mWidth;
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case PdmHeight:
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return mHeight;
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case PdmWidthMM:
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return (qt_defaultDpiX() * mWidth) / 2.54;
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case PdmHeightMM:
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return (qt_defaultDpiY() * mHeight) / 2.54;
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case PdmNumColors:
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return 0;
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case PdmDepth:
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return 32;
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case PdmDpiX:
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case PdmPhysicalDpiX:
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return qt_defaultDpiX();
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case PdmDpiY:
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case PdmPhysicalDpiY:
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return qt_defaultDpiY();
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}
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return 0;
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}
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QPaintEngine *paintEngine() const { qWarning("This function should never be called."); return 0; }
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private:
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CGContextRef mCG;
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int mWidth;
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int mHeight;
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int mBytesPerLine;
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};
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QT_END_NAMESPACE
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#endif // QPAINTENGINE_MAC_P_H
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