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qpaintdevice.h
这里是qpaintdevice.h包含文件的所有文本，一字不差。它仅仅用来说明，版权由Trolltech保留。
/**************************************************************************** ** $Id: qt/qpaintdevice.h 3.0.5 edited Apr 23 23:32 $ ** ** Definition of QPaintDevice class ** ** Created : 940721 ** ** Copyright (C) 1992-2000 Trolltech AS. All rights reserved. ** ** This file is part of the kernel module of the Qt GUI Toolkit. ** ** This file may be distributed under the terms of the Q Public License ** as defined by Trolltech AS of Norway and appearing in the file ** LICENSE.QPL included in the packaging of this file. ** ** This file may be distributed and/or modified under the terms of the ** GNU General Public License version 2 as published by the Free Software ** Foundation and appearing in the file LICENSE.GPL included in the ** packaging of this file. ** ** Licensees holding valid Qt Enterprise Edition or Qt Professional Edition ** licenses may use this file in accordance with the Qt Commercial License ** Agreement provided with the Software. ** ** This file is provided AS IS with NO WARRANTY OF ANY KIND, INCLUDING THE ** WARRANTY OF DESIGN, MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. ** ** See http://www.trolltech.com/pricing.html or email [email protected] for ** information about Qt Commercial License Agreements. ** See http://www.trolltech.com/qpl/ for QPL licensing information. ** See http://www.trolltech.com/gpl/ for GPL licensing information. ** ** Contact [email protected] if any conditions of this licensing are ** not clear to you. ** **********************************************************************/ #ifndef QPAINTDEVICE_H #define QPAINTDEVICE_H #ifndef QT_H #include "qwindowdefs.h" #include "qrect.h" #endif // QT_H #if defined(Q_WS_QWS) class QWSDisplay; class QGfx; #endif class QIODevice; class QString; #if defined(Q_WS_X11) struct QPaintDeviceX11Data; #endif union QPDevCmdParam { int ival; int *ivec; QString *str; const QPoint *point; const QRect *rect; const QPointArray *ptarr; const QPixmap *pixmap; const QImage *image; const QColor *color; const QFont *font; const QPen *pen; const QBrush *brush; const QRegion *rgn; const QWMatrix *matrix; QIODevice *device; }; class Q_EXPORT QPaintDevice // device for QPainter { public: virtual ~QPaintDevice(); int devType() const; bool isExtDev() const; bool paintingActive() const; virtual void setResolution( int ); virtual int resolution() const; // Windows: get device context // X-Windows: get drawable #if defined(Q_WS_WIN) virtual HDC handle() const; #elif defined(Q_WS_X11) virtual Qt::HANDLE handle() const; virtual Qt::HANDLE x11RenderHandle() const; #elif defined(Q_WS_MAC) virtual Qt::HANDLE handle() const; #elif defined(Q_WS_QWS) virtual Qt::HANDLE handle() const; #endif #if defined(Q_WS_X11) Display *x11Display() const; int x11Screen() const; int x11Depth() const; int x11Cells() const; Qt::HANDLE x11Colormap() const; bool x11DefaultColormap() const; void *x11Visual() const; bool x11DefaultVisual() const; static Display *x11AppDisplay(); static int x11AppScreen(); static int x11AppDepth(); static int x11AppCells(); static int x11AppDpiX(); static int x11AppDpiY(); static Qt::HANDLE x11AppColormap(); static bool x11AppDefaultColormap(); static void *x11AppVisual(); static bool x11AppDefaultVisual(); static void x11SetAppDpiX(int); static void x11SetAppDpiY(int); #endif #if defined(Q_WS_QWS) static QWSDisplay *qwsDisplay(); virtual unsigned char * scanLine(int) const; virtual int bytesPerLine() const; virtual QGfx * graphicsContext(bool clip_children=TRUE) const; #endif enum PDevCmd { PdcNOP = 0, // <void> PdcDrawPoint = 1, // point PdcDrawFirst = PdcDrawPoint, PdcMoveTo = 2, // point PdcLineTo = 3, // point PdcDrawLine = 4, // point,point PdcDrawRect = 5, // rect PdcDrawRoundRect = 6, // rect,ival,ival PdcDrawEllipse = 7, // rect PdcDrawArc = 8, // rect,ival,ival PdcDrawPie = 9, // rect,ival,ival PdcDrawChord = 10, // rect,ival,ival PdcDrawLineSegments = 11, // ptarr PdcDrawPolyline = 12, // ptarr PdcDrawPolygon = 13, // ptarr,ival PdcDrawCubicBezier = 14, // ptarr PdcDrawText = 15, // point,str PdcDrawTextFormatted = 16, // rect,ival,str PdcDrawPixmap = 17, // rect,pixmap PdcDrawImage = 18, // rect,image PdcDrawText2 = 19, // point,str PdcDrawText2Formatted = 20, // rect,ival,str PdcDrawLast = PdcDrawText2Formatted, // no painting commands below PdcDrawLast. PdcBegin = 30, // <void> PdcEnd = 31, // <void> PdcSave = 32, // <void> PdcRestore = 33, // <void> PdcSetdev = 34, // device - PRIVATE PdcSetBkColor = 40, // color PdcSetBkMode = 41, // ival PdcSetROP = 42, // ival PdcSetBrushOrigin = 43, // point PdcSetFont = 45, // font PdcSetPen = 46, // pen PdcSetBrush = 47, // brush PdcSetTabStops = 48, // ival PdcSetTabArray = 49, // ival,ivec PdcSetUnit = 50, // ival PdcSetVXform = 51, // ival PdcSetWindow = 52, // rect PdcSetViewport = 53, // rect PdcSetWXform = 54, // ival PdcSetWMatrix = 55, // matrix,ival PdcSaveWMatrix = 56, PdcRestoreWMatrix = 57, PdcSetClip = 60, // ival PdcSetClipRegion = 61, // rgn PdcReservedStart = 0, // codes 0-199 are reserved PdcReservedStop = 199 // for Qt }; protected: QPaintDevice( uint devflags ); #if defined(Q_WS_WIN) HDC hdc; // device context #elif defined(Q_WS_X11) Qt::HANDLE hd; // handle to drawable Qt::HANDLE rendhd; // handle to RENDER pict void copyX11Data( const QPaintDevice * ); void cloneX11Data( const QPaintDevice * ); virtual void setX11Data( const QPaintDeviceX11Data* ); QPaintDeviceX11Data* getX11Data( bool def=FALSE ) const; #elif defined(Q_WS_MAC) #if !defined( QMAC_NO_QUARTZ ) CGContextRef ctx; #endif void * hd; #elif defined(Q_WS_QWS) Qt::HANDLE hd; #endif virtual bool cmd( int, QPainter *, QPDevCmdParam * ); virtual int metric( int ) const; virtual int fontMet( QFont *, int, const char * = 0, int = 0 ) const; virtual int fontInf( QFont *, int ) const; ushort devFlags; // device flags ushort painters; // refcount friend class QPainter; friend class QPaintDeviceMetrics; #if defined(Q_WS_MAC) #ifndef QMAC_NO_QUARTZ virtual CGContextRef macCGContext(bool clipped=TRUE) const; #endif friend Q_EXPORT void unclippedScaledBitBlt( QPaintDevice *, int, int, int, int, const QPaintDevice *, int, int, int, int, Qt::RasterOp, bool, bool ); #else friend Q_EXPORT void bitBlt( QPaintDevice *, int, int, const QPaintDevice *, int, int, int, int, Qt::RasterOp, bool ); #endif #if defined(Q_WS_X11) friend void qt_init_internal( int *, char **, Display *, Qt::HANDLE, Qt::HANDLE ); #endif private: #if defined(Q_WS_X11) static Display *x_appdisplay; static int x_appscreen; static int x_appdepth; static int x_appcells; static Qt::HANDLE x_appcolormap; static bool x_appdefcolormap; static void *x_appvisual; static bool x_appdefvisual; QPaintDeviceX11Data* x11Data; #endif private: // Disabled copy constructor and operator= #if defined(Q_DISABLE_COPY) QPaintDevice( const QPaintDevice & ); QPaintDevice &operator=( const QPaintDevice & ); #endif }; Q_EXPORT void bitBlt( QPaintDevice *dst, int dx, int dy, const QPaintDevice *src, int sx=0, int sy=0, int sw=-1, int sh=-1, Qt::RasterOp = Qt::CopyROP, bool ignoreMask=FALSE ); Q_EXPORT void bitBlt( QPaintDevice *dst, int dx, int dy, const QImage *src, int sx=0, int sy=0, int sw=-1, int sh=-1, int conversion_flags=0 ); #if defined(Q_WS_X11) struct Q_EXPORT QPaintDeviceX11Data : public QShared { Display* x_display; int x_screen; int x_depth; int x_cells; Qt::HANDLE x_colormap; bool x_defcolormap; void* x_visual; bool x_defvisual; }; #endif /***************************************************************************** Inline functions *****************************************************************************/ inline int QPaintDevice::devType() const { return devFlags & QInternal::DeviceTypeMask; } inline bool QPaintDevice::isExtDev() const { return (devFlags & QInternal::ExternalDevice) != 0; } inline bool QPaintDevice::paintingActive() const { return painters != 0; } #if defined(Q_WS_X11) inline Display *QPaintDevice::x11Display() const { return x11Data ? x11Data->x_display : x_appdisplay; } inline int QPaintDevice::x11Screen() const { return x11Data ? x11Data->x_screen : x_appscreen; } inline int QPaintDevice::x11Depth() const { return x11Data ? x11Data->x_depth : x_appdepth; } inline int QPaintDevice::x11Cells() const { return x11Data ? x11Data->x_cells : x_appcells; } inline Qt::HANDLE QPaintDevice::x11Colormap() const { return x11Data ? x11Data->x_colormap : x_appcolormap; } inline bool QPaintDevice::x11DefaultColormap() const { return x11Data ? x11Data->x_defcolormap : x_appdefcolormap; } inline void *QPaintDevice::x11Visual() const { return x11Data ? x11Data->x_visual : x_appvisual; } inline bool QPaintDevice::x11DefaultVisual() const { return x11Data ? x11Data->x_defvisual : x_appdefvisual; } inline Display *QPaintDevice::x11AppDisplay() { return x_appdisplay; } inline int QPaintDevice::x11AppScreen() { return x_appscreen; } inline int QPaintDevice::x11AppDepth() { return x_appdepth; } inline int QPaintDevice::x11AppCells() { return x_appcells; } inline Qt::HANDLE QPaintDevice::x11AppColormap() { return x_appcolormap; } inline bool QPaintDevice::x11AppDefaultColormap() { return x_appdefcolormap; } inline void *QPaintDevice::x11AppVisual() { return x_appvisual; } inline bool QPaintDevice::x11AppDefaultVisual() { return x_appdefvisual; } #endif // Q_WS_X11 Q_EXPORT inline void bitBlt( QPaintDevice *dst, const QPoint &dp, const QPaintDevice *src, const QRect &sr =QRect(0,0,-1,-1), Qt::RasterOp rop=Qt::CopyROP, bool ignoreMask=FALSE ) { bitBlt( dst, dp.x(), dp.y(), src, sr.x(), sr.y(), sr.width(), sr.height(), rop, ignoreMask ); } #endif // QPAINTDEVICE_H
| Copyright © 2002 Trolltech | Trademarks | 译者:Cavendish | Qt 3.0.5版
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