📄 qgfxraster_qws-h.html
字号:
<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>Qt Toolkit - qgfxraster_qws.h include file</title><style type="text/css"><!--h3.fn,span.fn { margin-left: 1cm; text-indent: -1cm; }a:link { color: #004faf; text-decoration: none }a:visited { color: #672967; text-decoration: none }body { background: white; color: black; }--></style></head><body bgcolor="#ffffff"><table width="100%"><tr><td><a href="index.html"><img width="100" height="100" src="qtlogo.png"alt="Home" border="0"><img width="100"height="100" src="face.png" alt="Home" border="0"></a><td valign="top"><div align="right"><img src="dochead.png" width="472" height="27"><br><a href="classes.html"><b>Classes</b></a>- <a href="annotated.html">Annotated</a>- <a href="hierarchy.html">Tree</a>- <a href="functions.html">Functions</a>- <a href="index.html">Home</a>- <a href="topicals.html"><b>Structure</b> <font face="Arial,Helvetica,Geneva,Swiss,SunSans-Regular" align="center" size=32>Qte</font></a></div></table><h1 align=center>qgfxraster_qws.h</h1><br clear="all">This is the verbatim text of the qgfxraster_qws.h include file. It isprovided only for illustration; the copyrightremains with Trolltech.<hr><pre>/****************************************************************************** $Id: qt/src/kernel/qgfxraster_qws.h 2.3.8 edited 2004-05-12 $**** Definition of QGfxRaster (unaccelerated graphics context) class**** Created : 940721**** Copyright (C) 1992-1999 Trolltech AS. All rights reserved.**** This file is part of the kernel module of the Qt GUI Toolkit.**** 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 for Qt/Embedded may use this file in accordance with the** Qt Embedded 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 sales@trolltech.com for** information about Qt Commercial License Agreements.** See http://www.trolltech.com/gpl/ for GPL licensing information.**** Contact info@trolltech.com if any conditions of this licensing are** not clear to you.************************************************************************/#ifndef QGFXRASTER_H#define QGFXRASTER_H#ifndef QT_H#include "qgfx_qws.h"#include "qpen.h"#include "qbrush.h"#include "qimage.h"#include "qfontmanager_qws.h"#include "qmemorymanager_qws.h"#include "qwsdisplay_qws.h"#include "qpointarray.h"#include "qpolygonscanner.h"#include "qapplication.h"#include "qregion.h"#endif // QT_H#include <unistd.h>#include <stdio.h>#include <stdlib.h>#include <math.h>class QGfxRasterBase : public QGfx {public: QGfxRasterBase(unsigned char *,int w,int h); ~QGfxRasterBase(); virtual void setPen( const QPen & ); virtual void setFont( const QFont & ); virtual void setBrushPixmap( const QPixmap * p ) { cbrushpixmap=p; } virtual void setBrushOffset( int x, int y ); virtual void setBrush( const QBrush & ); virtual void setClipRect( int,int,int,int ); virtual void setClipRegion( const QRegion & ); virtual void setClipDeviceRegion( const QRegion & ); virtual void setClipping(bool); // These will be called from qwidget_qws or qwidget_mac // to update the drawing area when a widget is moved virtual void setOffset( int,int ); virtual void setWidgetRect( int,int,int,int ); virtual void setWidgetRegion( const QRegion & ); virtual void setWidgetDeviceRegion( const QRegion & ); virtual void setGlobalRegionIndex( int idx ); virtual void setDashedLines(bool d); virtual void setDashes(char *, int); virtual void moveTo( int,int ); virtual void lineTo( int,int ); virtual void setOpaqueBackground(bool b) { opaque=b; } virtual void setBackgroundColor(QColor c) { backcolor=c; } virtual void setAlphaType(AlphaType); virtual void setAlphaSource(unsigned char *,int); virtual void setAlphaSource(int,int=-1,int=-1,int=-1); virtual void drawText(int,int,const QString &); virtual void sync(); virtual void setLineStep(int i) { lstep=i; } int linestep() const { return lstep; } int pixelWidth() const { return width; } int pixelHeight() const { return height; } virtual int bitDepth() = 0; void save(); void restore(); virtual void setRop(RasterOp r) { myrop=r; } void setClut(QRgb * cols,int numcols) { clut=cols; clutcols=numcols; }protected:#ifdef DEBUG_POINTERS void checkSource(unsigned char * c,int i) { if(i<0) { qFatal("Negative source coordinate"); } if(i>=srcheight) { qFatal("Source pointer height overrun"); } unsigned char * tmp1=srcbits+(i*srclinestep); unsigned char * tmp2=tmp1+srclinestep; if(c<tmp1) { qFatal("Source pointer underrun"); } if(c>=tmp2) { qFatal("Source pointer overrun"); } } void checkMask(unsigned char * c,int i) { unsigned char * tmp1=alphabits+(i*alphalinestep); unsigned char * tmp2=tmp1+alphalinestep; if(i<0) { qFatal("Negative mask coordinate"); } if(i>=srcheight) { qFatal("Mask height overrun"); } if(c<tmp1) { qFatal("Alpha pointer underrun"); } if(c>=tmp2) { qFatal("Alpha pointer overrun"); } } void checkDest(unsigned char * c,int i) { if(i<0) { qFatal("Negative dest coordinate"); } if(i>=height) { qFatal("Destination height overrun"); } unsigned char * tmp1=buffer+(i*lstep); unsigned char * tmp2=tmp1+lstep; if(c<tmp1) { qFatal("Destination pointer underrun"); } if(c>=tmp2) { qFatal("Destination pointer overrun"); } }#endif void* beginTransaction( const QRect& ); void endTransaction(void*); void beginDraw() { QWSDisplay::grab(); if ( globalRegionRevision && *globalRegionRevision != currentRegionRevision ) { fixClip(); } } void endDraw() { QWSDisplay::ungrab(); } void fixClip(); void update_clip(); bool inClip(int x, int y, QRect* cr=0, bool know_to_be_outside=FALSE); virtual void setSourceWidgetOffset( int x, int y ); void useBrush(); void usePen(); virtual void setSourcePen(); unsigned char *scanLine(int i) { return buffer+(i*lstep); } unsigned char *srcScanLine(int i) { return srcbits + (i*srclinestep); } // Convert to/from different bit depths unsigned int get_value_32(int sdepth,unsigned char **srcdata, bool reverse=FALSE); unsigned int get_value_24(int sdepth,unsigned char **srcdata, bool reverse=FALSE); unsigned int get_value_16(int sdepth,unsigned char **srcdata, bool reverse=FALSE); unsigned int get_value_15(int sdepth,unsigned char **srcdata, bool reverse=FALSE); unsigned int get_value_8(int sdepth,unsigned char **srcdata, bool reverse=FALSE); unsigned int get_value_4(int sdepth,unsigned char **srcdata, bool reverse=FALSE); unsigned int get_value_1(int sdepth,unsigned char **srcdata, bool reverse=FALSE);protected: SourceType srctype; PixelType srcpixeltype; unsigned char * srcbits; unsigned char * const buffer; PixelType pixeltype; int width; int height; int xoffs; int yoffs; unsigned int lstep; bool opaque; QColor backcolor; QPen cpen; QBrush cbrush; QPoint brushoffs; bool patternedbrush; const QPixmap * cbrushpixmap; bool dashedLines; char *dashes; int numDashes; QPen savepen; QBrush savebrush; bool regionClip; bool clipDirty; QRegion widgetrgn; QRegion cliprgn; QRect clipbounds; int penx; int peny; int srcwidth; int srcheight; int srcdepth; int srclinestep; int srccol; QPoint srcwidgetoffs; // Needed when source is widget bool src_little_endian; bool src_normal_palette; unsigned int srcclut[256]; // Source color table - r,g,b values unsigned int transclut[256]; // Source clut transformed to destination // values - speed optimisation QRgb * clut; // Destination color table - r,g,b values int clutcols; // Colours in clut int monobitcount; unsigned char monobitval; AlphaType alphatype; unsigned char * alphabits; unsigned int * alphabuf; int alphalinestep; bool ismasking; int amonobitcount; unsigned char amonobitval; bool amonolittletest; int calpha; // Constant alpha value int calpha2,calpha3,calpha4; // Used for groovy accelerated effect unsigned char * maskp; QMemoryManager::FontID myfont; int clipcursor; QRect* cliprect; int ncliprect; int globalRegionIndex; const int *globalRegionRevision; int currentRegionRevision; RasterOp myrop; unsigned long int pixel; // == cpen.pixel() or cbrush.pixel() QPolygonScanner::Edge stitchedges; friend class QScreenCursor;};template <const int depth, const int type>class QGfxRaster : public QGfxRasterBase, protected QPolygonScanner {public: QGfxRaster(unsigned char *,int w,int h); ~QGfxRaster(); virtual void drawPoint( int,int ); virtual void drawPoints( const QPointArray &,int,int ); virtual void drawLine( int,int,int,int ); virtual void fillRect( int,int,int,int ); virtual void drawPolyline( const QPointArray &,int,int ); virtual void drawPolygon( const QPointArray &,bool,int,int ); virtual void blt( int,int,int,int,int,int ); virtual void scroll( int,int,int,int,int,int );#if !defined(QT_NO_MOVIE) || !defined(QT_NO_TRANSFORMATIONS) || !defined(QT_NO_PIXMAP_TRANSFORMATION) virtual void stretchBlt( int,int,int,int,int,int );#endif virtual void tiledBlt( int,int,int,int ); virtual int bitDepth() { return depth; } virtual void setSource(const QImage *); virtual void setSource(const QPaintDevice *);protected: virtual void drawThickLine( int,int,int,int ); virtual void drawThickPolyline( const QPointArray &,int,int ); void buildSourceClut(QRgb *,int); void processSpans( int n, QPoint* point, int* width ); // Optimised vertical line drawing void vline(int,int,int ); // Optimised horizontal line drawing void hline(int,int,int ); void hlineUnclipped(int,int,unsigned char* );#if defined(_OS_QNX6_) // need a different signature for QNX acceleration, override to accel virtual void hlineUnclipped(int x,int x1,int y){unsigned char *l=scanLine(y);hlineUnclipped(x,x1,l);};#endif void hImageLineUnclipped(int,int,unsigned char *,unsigned char *,bool); void hAlphaLineUnclipped(int,int,unsigned char *,unsigned char *, unsigned char *); void drawPointUnclipped( int, unsigned char* ); void calcPacking(void *,int,int,int&,int&,int&);};#endif</pre><p><address><hr><div align="center"><table width="100%" cellspacing="0" border="0"><tr><td>Copyright ⌨️ 快捷键说明
复制代码
Ctrl + C
搜索代码
Ctrl + F
全屏模式
F11
切换主题
Ctrl + Shift + D
显示快捷键
?
增大字号
Ctrl + =
减小字号
Ctrl + -