libjava/gnu/awt/j2d/DirectRasterGraphics.java

   1 /* Copyright (C) 2000, 2003  Free Software Foundation
   2
   3    This file is part of libgcj.
   4
   5 This software is copyrighted work licensed under the terms of the
   6 Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
   7 details.  */
   8
   9 package gnu.awt.j2d;
  10
  11 import java.awt.Color;
  12 import java.awt.Image;
  13 import java.awt.Shape;
  14 import java.awt.Rectangle;
  15 import java.awt.Graphics;
  16 import java.awt.Graphics2D;
  17 import java.awt.GraphicsConfiguration;
  18 import java.awt.Font;
  19 import java.awt.FontMetrics;
  20 import java.awt.image.Raster;
  21 import java.awt.image.ImageObserver;
  22
  23 /**
  24  * Interface for a simple pixel based backend graphics object that
  25  * does not handle translation/transforms, curves, nor advanced
  26  * compositing.
  27  */
  28 public interface DirectRasterGraphics extends Cloneable
  29 {
  30   void dispose();
  31
  32   void setColor(Color color);
  33
  34   void setPaintMode();
  35
  36   void setXORMode(Color altColor);
  37
  38   void setFont(Font font);
  39
  40   FontMetrics getFontMetrics(Font font);
  41
  42   // supports rects, multi-rects and polygons
  43   void setClip(Shape clip);
  44
  45   void copyArea(int x, int y, int width, int height,
  46                        int dx, int dy);
  47
  48   void drawLine(int x1, int y1, int x2, int y2);
  49
  50   void drawRect(int x, int y, int width, int height);
  51
  52   void fillRect(int x, int y, int width, int height);
  53
  54   void drawArc(int x, int y, int width, int height,
  55                       int startAngle, int arcAngle);
  56
  57   void fillArc(int x, int y, int width, int height,
  58                       int startAngle, int arcAngle);
  59
  60   void drawPolyline(int[] xPoints, int[] yPoints, int nPoints);
  61
  62   void drawPolygon(int[] xPoints, int[] yPoints, int nPoints);
  63
  64   void fillPolygon(int[] xPoints, int[] yPoints, int nPoints,
  65                           int translateX, int translateY);
  66
  67   void drawString(String str, int x, int y);
  68
  69   boolean drawImage(Image image, int x, int y,
  70                            ImageObserver observer);
  71
  72   /**
  73    * Map the data for screen pixels in the requested bounds to a
  74    * raster object.  This gives read/write access to the screen
  75    * pixels, allowing neat alpha and composite tricks.
  76    */
  77   MappedRaster mapRaster(Rectangle bounds);
  78
  79   /**
  80    * Detach previously mapped pixel data from a raster object.
  81    */
  82   void unmapRaster(MappedRaster mappedRaster);
  83
  84   Object clone();
  85 }