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00001 /******************************************************************************** 00002 * * 00003 * D e v i c e C o n t e x t F o r W i n d o w s a n d I m a g e s * 00004 * * 00005 ********************************************************************************* 00006 * Copyright (C) 1999,2002 by Jeroen van der Zijp. All Rights Reserved. * 00007 ********************************************************************************* 00008 * This library is free software; you can redistribute it and/or * 00009 * modify it under the terms of the GNU Lesser General Public * 00010 * License as published by the Free Software Foundation; either * 00011 * version 2.1 of the License, or (at your option) any later version. * 00012 * * 00013 * This library is distributed in the hope that it will be useful, * 00014 * but WITHOUT ANY WARRANTY; without even the implied warranty of * 00015 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU * 00016 * Lesser General Public License for more details. * 00017 * * 00018 * You should have received a copy of the GNU Lesser General Public * 00019 * License along with this library; if not, write to the Free Software * 00020 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA. * 00021 ********************************************************************************* 00022 * $Id: FXDCWindow.h,v 1.31 2002/08/29 19:27:42 fox Exp $ * 00023 ********************************************************************************/ 00024 #ifndef FXDCWINDOW_H 00025 #define FXDCWINDOW_H 00026 00027 #ifndef FXDC_H 00028 #include "FXDC.h" 00029 #endif 00030 00031 namespace FX { 00032 00033 00034 class FXApp; 00035 class FXDrawable; 00036 class FXImage; 00037 class FXBitmap; 00038 class FXIcon; 00039 class FXFont; 00040 class FXVisual; 00041 00042 00043 /** 00044 * Window Device Context 00045 * 00046 * The Window Device Context allows drawing into an FXDrawable, such as an 00047 * on-screen window (FXWindow and derivatives) or an off-screen image (FXImage 00048 * and its derivatives). 00049 * Because certain hardware resources are locked down, only one FXDCWindow may be 00050 * locked on a drawable at any one time. 00051 */ 00052 class FXAPI FXDCWindow : public FXDC { 00053 protected: 00054 FXDrawable *surface; // Drawable surface 00055 FXVisual *visual; // Visual of drawable 00056 FXRectangle rect; // Paint rectangle inside drawable 00057 #ifndef WIN32 00058 FXuint flags; // GC Flags 00059 FXPixel devfg; // Device foreground pixel value 00060 FXPixel devbg; // Device background pixel value 00061 #else 00062 FXID oldpalette; 00063 FXID oldbrush; 00064 FXID oldpen; 00065 FXPixel devfg; // Device foreground pixel value 00066 FXPixel devbg; // Device background pixel value 00067 FXbool needsNewBrush; 00068 FXbool needsNewPen; 00069 FXbool needsPath; 00070 #endif 00071 private: 00072 #ifdef WIN32 00073 void updateBrush(); 00074 void updatePen(); 00075 #endif 00076 private: 00077 FXDCWindow(); 00078 FXDCWindow(const FXDCWindow&); 00079 FXDCWindow &operator=(const FXDCWindow&); 00080 public: 00081 00082 /// Construct for painting in response to expose; 00083 /// This sets the clip rectangle to the exposed rectangle 00084 FXDCWindow(FXDrawable* drawable,FXEvent* event); 00085 00086 /// Construct for normal drawing; 00087 /// This sets clip rectangle to the whole drawable 00088 FXDCWindow(FXDrawable* drawable); 00089 00090 /// Begin locks in a drawable surface 00091 void begin(FXDrawable *drawable); 00092 00093 /// End unlock the drawable surface 00094 void end(); 00095 00096 /// Read back pixel 00097 virtual FXColor readPixel(FXint x,FXint y); 00098 00099 /// Draw points 00100 virtual void drawPoint(FXint x,FXint y); 00101 virtual void drawPoints(const FXPoint* points,FXuint npoints); 00102 virtual void drawPointsRel(const FXPoint* points,FXuint npoints); 00103 00104 /// Draw lines 00105 virtual void drawLine(FXint x1,FXint y1,FXint x2,FXint y2); 00106 virtual void drawLines(const FXPoint* points,FXuint npoints); 00107 virtual void drawLinesRel(const FXPoint* points,FXuint npoints); 00108 virtual void drawLineSegments(const FXSegment* segments,FXuint nsegments); 00109 00110 /// Draw rectangles 00111 virtual void drawRectangle(FXint x,FXint y,FXint w,FXint h); 00112 virtual void drawRectangles(const FXRectangle* rectangles,FXuint nrectangles); 00113 00114 /// Draw arcs 00115 virtual void drawArc(FXint x,FXint y,FXint w,FXint h,FXint ang1,FXint ang2); 00116 virtual void drawArcs(const FXArc* arcs,FXuint narcs); 00117 00118 /// Filled rectangles 00119 virtual void fillRectangle(FXint x,FXint y,FXint w,FXint h); 00120 virtual void fillRectangles(const FXRectangle* rectangles,FXuint nrectangles); 00121 00122 /// Fill chord 00123 virtual void fillChord(FXint x,FXint y,FXint w,FXint h,FXint ang1,FXint ang2); 00124 virtual void fillChords(const FXArc* chords,FXuint nchords); 00125 00126 /// Draw arcs 00127 virtual void fillArc(FXint x,FXint y,FXint w,FXint h,FXint ang1,FXint ang2); 00128 virtual void fillArcs(const FXArc* arcs,FXuint narcs); 00129 00130 /// Filled polygon 00131 virtual void fillPolygon(const FXPoint* points,FXuint npoints); 00132 virtual void fillConcavePolygon(const FXPoint* points,FXuint npoints); 00133 virtual void fillComplexPolygon(const FXPoint* points,FXuint npoints); 00134 00135 /// Filled polygon with relative points 00136 virtual void fillPolygonRel(const FXPoint* points,FXuint npoints); 00137 virtual void fillConcavePolygonRel(const FXPoint* points,FXuint npoints); 00138 virtual void fillComplexPolygonRel(const FXPoint* points,FXuint npoints); 00139 00140 /// Draw hashed box 00141 virtual void drawHashBox(FXint x,FXint y,FXint w,FXint h,FXint b=1); 00142 00143 /// Draw focus rectangle 00144 virtual void drawFocusRectangle(FXint x,FXint y,FXint w,FXint h); 00145 00146 /// Draw area from source 00147 virtual void drawArea(const FXDrawable* source,FXint sx,FXint sy,FXint sw,FXint sh,FXint dx,FXint dy); 00148 00149 /// Draw image 00150 virtual void drawImage(const FXImage* image,FXint dx,FXint dy); 00151 00152 /// Draw bitmap 00153 virtual void drawBitmap(const FXBitmap* bitmap,FXint dx,FXint dy); 00154 00155 /// Draw icon 00156 virtual void drawIcon(const FXIcon* icon,FXint dx,FXint dy); 00157 virtual void drawIconShaded(const FXIcon* icon,FXint dx,FXint dy); 00158 virtual void drawIconSunken(const FXIcon* icon,FXint dx,FXint dy); 00159 00160 /// Draw string 00161 virtual void drawText(FXint x,FXint y,const FXchar* string,FXuint length); 00162 virtual void drawImageText(FXint x,FXint y,const FXchar* string,FXuint length); 00163 00164 /// Set foreground/background drawing color 00165 virtual void setForeground(FXColor clr); 00166 virtual void setBackground(FXColor clr); 00167 00168 /// Set dash pattern 00169 virtual void setDashes(FXuint dashoffset,const FXchar *dashpattern,FXuint dashlength); 00170 00171 /// Set line width 00172 virtual void setLineWidth(FXuint linewidth=0); 00173 00174 /// Set line cap style 00175 virtual void setLineCap(FXCapStyle capstyle=CAP_BUTT); 00176 00177 /// Set line join style 00178 virtual void setLineJoin(FXJoinStyle joinstyle=JOIN_MITER); 00179 00180 /// Set line style 00181 virtual void setLineStyle(FXLineStyle linestyle=LINE_SOLID); 00182 00183 /// Set fill style 00184 virtual void setFillStyle(FXFillStyle fillstyle=FILL_SOLID); 00185 00186 /// Set fill rule 00187 virtual void setFillRule(FXFillRule fillrule=RULE_EVEN_ODD); 00188 00189 /// Set blit function 00190 virtual void setFunction(FXFunction func=BLT_SRC); 00191 00192 /// Set the tile 00193 virtual void setTile(FXImage* tile,FXint dx=0,FXint dy=0); 00194 00195 /// Set the stipple pattern 00196 virtual void setStipple(FXBitmap *stipple,FXint dx=0,FXint dy=0); 00197 00198 /// Set the stipple pattern 00199 virtual void setStipple(FXStipplePattern stipple,FXint dx=0,FXint dy=0); 00200 00201 /// Set clip region 00202 virtual void setClipRegion(const FXRegion& region); 00203 00204 /// Set clip rectangle 00205 virtual void setClipRectangle(FXint x,FXint y,FXint w,FXint h); 00206 00207 /// Set clip rectangle 00208 virtual void setClipRectangle(const FXRectangle& rectangle); 00209 00210 /// Clear clipping 00211 virtual void clearClipRectangle(); 00212 00213 /// Set clip mask 00214 virtual void setClipMask(FXBitmap* mask,FXint dx=0,FXint dy=0); 00215 00216 /// Clear clip mask 00217 virtual void clearClipMask(); 00218 00219 /// Set font to draw text with 00220 virtual void setTextFont(FXFont *fnt); 00221 00222 /// Clip against child windows 00223 virtual void clipChildren(FXbool yes); 00224 00225 /// Destructor 00226 virtual ~FXDCWindow(); 00227 }; 00228 00229 } 00230 00231 #endif