qgfx_qws-h.html
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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN"><!-- /home/reggie/tmp/qt-3.0-reggie-5401/qt-x11-commercial-3.0.5/include/qgfx_qws.h:1 --><html><head><meta http-equiv="Content-Type" content="text/html; charset=ISO-8859-1"><title>qgfx_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: #ffffff; color: black; }--></style></head><body><table border="0" cellpadding="0" cellspacing="0" width="100%"><tr bgcolor="#E5E5E5"><td valign=center> <a href="index.html"><font color="#004faf">Home</font></a> | <a href="classes.html"><font color="#004faf">All Classes</font></a> | <a href="mainclasses.html"><font color="#004faf">Main Classes</font></a> | <a href="annotated.html"><font color="#004faf">Annotated</font></a> | <a href="groups.html"><font color="#004faf">Grouped Classes</font></a> | <a href="functions.html"><font color="#004faf">Functions</font></a></td><td align="right" valign="center"><img src="logo32.png" align="right" width="64" height="32" border="0"></td></tr></table><h1 align=center>qgfx_qws.h</h1><p>This is the verbatim text of the qgfx_qws.h include file. It is provided only for illustration; the copyright remains with Trolltech.<hr><pre>/****************************************************************************** $Id: qt/qgfx_qws.h 3.0.5 edited Feb 21 1999 $**** Definition of QGfx (graphics context) 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 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 QGFX_H#define QGFX_H#ifndef QT_H#include "qwidget.h"#include "qnamespace.h"#include "qimage.h"#include "qfontmanager_qws.h"#include "qpoint.h"#endif // QT_Hclass QScreenCursor;#if !defined( QT_NO_IMAGE_16_BIT ) || !defined( QT_NO_QWS_DEPTH_16 )# ifndef QT_QWS_DEPTH16_RGB# define QT_QWS_DEPTH16_RGB 565# endifstatic const int qt_rbits = (QT_QWS_DEPTH16_RGB/100);static const int qt_gbits = (QT_QWS_DEPTH16_RGB/10%10);static const int qt_bbits = (QT_QWS_DEPTH16_RGB%10);static const int qt_red_shift = qt_bbits+qt_gbits-(8-qt_rbits);static const int qt_green_shift = qt_bbits-(8-qt_gbits);static const int qt_neg_blue_shift = 8-qt_bbits;static const int qt_blue_mask = (1<<qt_bbits)-1;static const int qt_green_mask = (1<<(qt_gbits+qt_bbits))-((1<<qt_bbits)-1);static const int qt_red_mask = (1<<(qt_rbits+qt_gbits+qt_bbits))-(1<<(qt_gbits+qt_bbits));inline ushort qt_convRgbTo16( const int r, const int g, const int b ){ const int tr = r << qt_red_shift; const int tg = g << qt_green_shift; const int tb = b >> qt_neg_blue_shift; return (tb & qt_blue_mask) | (tg & qt_green_mask) | (tr & qt_red_mask);}inline ushort qt_convRgbTo16( QRgb c ){ const int tr = qRed(c) << qt_red_shift; const int tg = qGreen(c) << qt_green_shift; const int tb = qBlue(c) >> qt_neg_blue_shift; return (tb & qt_blue_mask) | (tg & qt_green_mask) | (tr & qt_red_mask);}inline QRgb qt_conv16ToRgb( ushort c ){ const int r=(c & qt_red_mask); const int g=(c & qt_green_mask); const int b=(c & qt_blue_mask); const int tr = r >> qt_red_shift; const int tg = g >> qt_green_shift; const int tb = b << qt_neg_blue_shift; return qRgb(tr,tg,tb);}inline void qt_conv16ToRgb( ushort c, int& r, int& g, int& b ){ const int tr=(c & qt_red_mask); const int tg=(c & qt_green_mask); const int tb=(c & qt_blue_mask); r = tr >> qt_red_shift; g = tg >> qt_green_shift; b = tb << qt_neg_blue_shift;}#endifconst int SourceSolid=0;const int SourcePixmap=1;#ifndef QT_NO_QWS_CURSORextern bool qt_sw_cursor;class QGfxRasterBase;#define SW_CURSOR_DATA_SIZE 4096 // 64x64 8-bit cursorclass SWCursorData;class QScreenCursor{public: QScreenCursor( ); virtual ~QScreenCursor(); virtual void init(SWCursorData *da, bool init = FALSE); virtual void set( const QImage &image, int hotx, int hoty ); virtual void move( int x, int y ); virtual void show(); virtual void hide(); virtual bool restoreUnder( const QRect &r, QGfxRasterBase *g = 0 ); virtual void saveUnder(); virtual void drawCursor(); //void draw(); virtual bool supportsAlphaCursor(); static bool enabled() { return qt_sw_cursor; }protected: QGfxRasterBase *gfx; QGfxRasterBase *gfxunder; QImage *imgunder; QImage *cursor; uchar *fb_start; uchar *fb_end; bool save_under; SWCursorData *data; int clipWidth; int clipHeight; int myoffset;};extern QScreenCursor * qt_screencursor;#endif // QT_NO_QWS_CURSORstruct fb_cmap;// A (used) chunk of offscreen memoryclass QPoolEntry {public: unsigned int start; unsigned int end;};class QScreen {public: QScreen( int display_id ); virtual ~QScreen(); virtual bool initDevice() = 0; virtual bool connect( const QString &displaySpec ) = 0; virtual void disconnect() = 0; virtual int initCursor(void *, bool=FALSE); virtual void shutdownDevice(); virtual void setMode(int,int,int) = 0; virtual bool supportsDepth(int) const; virtual QGfx * createGfx(unsigned char *,int,int,int,int); virtual QGfx * screenGfx(); virtual void save(); virtual void restore(); virtual void blank(bool on); virtual int pixmapOffsetAlignment() { return 64; } virtual int pixmapLinestepAlignment() { return 64; } virtual bool onCard(unsigned char *) const; virtual bool onCard(unsigned char *, ulong& out_offset) const; // sets a single color in the colormap virtual void set(unsigned int,unsigned int,unsigned int,unsigned int); // allocates a color virtual int alloc(unsigned int,unsigned int,unsigned int); int width() const { return w; } int height() const { return h; } int depth() const { return d; } virtual int pixmapDepth() const; int pixelType() const { return pixeltype; } int linestep() const { return lstep; } int deviceWidth() const { return dw; } int deviceHeight() const { return dh; } uchar * base() const { return data; } // Ask for memory from card cache with alignment virtual uchar * cache(int,int) { return 0; } virtual void uncache(uchar *) {} int screenSize() const { return size; } int totalSize() const { return mapsize; } QRgb * clut() { return screenclut; } int numCols() { return screencols; } virtual QSize mapToDevice( const QSize & ) const; virtual QSize mapFromDevice( const QSize & ) const; virtual QPoint mapToDevice( const QPoint &, const QSize & ) const; virtual QPoint mapFromDevice( const QPoint &, const QSize & ) const; virtual QRect mapToDevice( const QRect &, const QSize & ) const; virtual QRect mapFromDevice( const QRect &, const QSize & ) const; virtual QImage mapToDevice( const QImage & ) const; virtual QImage mapFromDevice( const QImage & ) const; virtual QRegion mapToDevice( const QRegion &, const QSize & ) const; virtual QRegion mapFromDevice( const QRegion &, const QSize & ) const; virtual int transformOrientation() const; virtual bool isTransformed() const; virtual bool isInterlaced() const; virtual void setDirty( const QRect& );#ifndef QT_NO_QWS_REPEATER int * opType() { return screen_optype; } int * lastOp() { return screen_lastop; }#endifprotected: // Only used without QT_NO_QWS_REPEATER, but included so that // it's binary compatible regardless. int * screen_optype; int * screen_lastop; QRgb screenclut[256]; int screencols; bool initted; uchar * data; // Table of allocated lumps, kept in sorted highest-to-lowest order // The table itself is allocated at the bottom of offscreen memory // i.e. it's similar to having a stack (the table) and a heap // (the allocated blocks). Freed space is implicitly described // by the gaps between the allocated lumps (this saves entries and // means we don't need to worry about coalescing freed lumps) QPoolEntry * entries; int * entryp; unsigned int * lowest; int w; int lstep; int h; int d; int pixeltype; int dw; int dh; int hotx; int hoty; QImage cursor; int size; // Screen size int mapsize; // Total mapped memory int displayId;};extern QScreen * qt_screen;class Q_EXPORT QGfx : public Qt {public: // With loadable drivers, do probe here static QGfx *createGfx( int depth, unsigned char *buffer, int w, int h, int linestep ); virtual ~QGfx() {} virtual void setPen( const QPen & )=0; virtual void setFont( const QFont & )=0; virtual void setBrush( const QBrush & )=0; virtual void setBrushPixmap( const QPixmap * )=0; virtual void setBrushOffset( int, int ) = 0; virtual void setClipRect( int,int,int,int )=0; virtual void setClipRegion( const QRegion & )=0; virtual void setClipDeviceRegion( const QRegion & )=0; virtual void setClipping (bool)=0; // 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 )=0; virtual void setWidgetRect( int,int,int,int )=0; virtual void setWidgetRegion( const QRegion & )=0; virtual void setWidgetDeviceRegion( const QRegion & )=0; virtual void setSourceWidgetOffset(int x, int y) = 0; virtual void setGlobalRegionIndex( int idx ) = 0; virtual void setDashedLines(bool d) = 0; virtual void setDashes(char *, int) = 0; virtual void setOpaqueBackground(bool b)=0; virtual void setBackgroundColor(QColor c)=0; // Drawing operations virtual void drawPoint( int,int )=0; virtual void drawPoints( const QPointArray &,int,int )=0; virtual void moveTo( int,int )=0; virtual void lineTo( int,int )=0; virtual void drawLine( int,int,int,int )=0; virtual void drawPolyline( const QPointArray &,int,int )=0; // current position virtual QPoint pos() const = 0; // Fill operations - these use the current source (pixmap, // color, etc), and draws outline virtual void fillRect( int,int,int,int )=0; virtual void drawPolygon( const QPointArray &,bool,int,int )=0; virtual void setLineStep(int)=0; // Special case of rect-with-pixmap-fill for speed/hardware acceleration virtual void blt( int,int,int,int,int,int )=0; virtual void scroll( int,int,int,int,int,int )=0;#if !defined(QT_NO_MOVIE) || !defined(QT_NO_TRANSFORMATIONS) || !defined(QT_NO_PIXMAP_TRANSFORMATION) virtual void stretchBlt( int,int,int,int,int,int )=0;#endif virtual void tiledBlt( int,int,int,int )=0; enum SourceType { SourcePen, SourceImage, SourceAccel }; enum PixelType { NormalPixel, BGRPixel }; // Setting up source data - can be solid color or pixmap data virtual void setSource(const QPaintDevice *)=0; virtual void setSource(const QImage *)=0; virtual void setSource(unsigned char *,int,int,int,int,QRgb *,int); // This one is pen virtual void setSourcePen()=0; virtual void drawAlpha(int,int,int,int,int,int,int,int) {} virtual void hsync(int) {} // These apply only to blt's. For alpha values for general // drawing operations we should probably have a separate QGfx // class. It's not a high priority though. // Enum values: Ignore alpha information, alpha information encoded in // 32-bit rgba along with colors, alpha information in 8bpp // format in alphabits enum AlphaType { IgnoreAlpha, InlineAlpha, SeparateAlpha, LittleEndianMask, BigEndianMask, SolidAlpha }; // Can be no alpha, inline (32bit data), separate (for images), // LittleEndianMask/BigEndianMask 1bpp masks, constant alpha // value virtual void setAlphaType(AlphaType)=0; // Pointer to data, linestep virtual void setAlphaSource(unsigned char *,int)=0; virtual void setAlphaSource(int,int=-1,int=-1,int=-1)=0; virtual void drawText( int,int,const QString & )=0; virtual void setClut(QRgb *,int)=0; // Save and restore pen and brush state - necessary when setting // up a bitBlt for example virtual void save()=0; virtual void restore()=0; virtual void setRop(RasterOp)=0; virtual void setScreen(QScreen *,QScreenCursor *,bool,int *,int *); bool isScreenGfx() { return is_screen_gfx; } //for cursor..protected: bool is_screen_gfx;};// This lives in loadable modules#ifndef QT_LOADABLE_MODULESextern "C" QScreen * qt_get_screen( int display_id, const char* spec );#endif// This is in main lib, loads the right module, calls qt_get_screen// In non-loadable cases just aliases to qt_get_screenconst unsigned char * qt_probe_bus();#endif</pre><!-- eof --><p><address><hr><div align=center><table width=100% cellspacing=0 border=0><tr><td>Copyright © 2002 <a href="http://www.trolltech.com">Trolltech</a><td><a href="http://www.trolltech.com/trademarks.html">Trademarks</a><td align=right><div align=right>Qt version 3.0.5</div></table></div></address></body></html>⌨️ 快捷键说明
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