Source for java.awt.PaintContext

   1: /* PaintContext.java -- the environment for performing a paint operation
   2:    Copyright (C) 2000, 2002 Free Software Foundation
   3: 
   4: This file is part of GNU Classpath.
   5: 
   6: GNU Classpath is free software; you can redistribute it and/or modify
   7: it under the terms of the GNU General Public License as published by
   8: the Free Software Foundation; either version 2, or (at your option)
   9: any later version.
  10: 
  11: GNU Classpath is distributed in the hope that it will be useful, but
  12: WITHOUT ANY WARRANTY; without even the implied warranty of
  13: MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  14: General Public License for more details.
  15: 
  16: You should have received a copy of the GNU General Public License
  17: along with GNU Classpath; see the file COPYING.  If not, write to the
  18: Free Software Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA
  19: 02110-1301 USA.
  20: 
  21: Linking this library statically or dynamically with other modules is
  22: making a combined work based on this library.  Thus, the terms and
  23: conditions of the GNU General Public License cover the whole
  24: combination.
  25: 
  26: As a special exception, the copyright holders of this library give you
  27: permission to link this library with independent modules to produce an
  28: executable, regardless of the license terms of these independent
  29: modules, and to copy and distribute the resulting executable under
  30: terms of your choice, provided that you also meet, for each linked
  31: independent module, the terms and conditions of the license of that
  32: module.  An independent module is a module which is not derived from
  33: or based on this library.  If you modify this library, you may extend
  34: this exception to your version of the library, but you are not
  35: obligated to do so.  If you do not wish to do so, delete this
  36: exception statement from your version. */
  37: 
  38: 
  39: package java.awt;
  40: 
  41: import java.awt.image.ColorModel;
  42: import java.awt.image.Raster;
  43: 
  44: /**
  45:  * @author Warren Levy (warrenl@cygnus.com)
  46:  * @see Paint
  47:  * @since 1.1
  48:  * @status updated to 1.4
  49:  */
  50: public interface PaintContext
  51: {
  52:   /**
  53:    * Release the resources allocated for the paint.
  54:    */
  55:   void dispose();
  56: 
  57:   /**
  58:    * Return the color model of this context. It may be different from the
  59:    * hint specified during createContext, as not all contexts can generate
  60:    * color patterns in an arbitrary model.
  61:    *
  62:    * @return the context color model
  63:    */
  64:   ColorModel getColorModel();
  65: 
  66:   /**
  67:    * Return a raster containing the colors for the graphics operation.
  68:    *
  69:    * @param x the x-coordinate, in device space
  70:    * @param y the y-coordinate, in device space
  71:    * @param w the width, in device space
  72:    * @param h the height, in device space
  73:    * @return a raster for the given area and color
  74:    */
  75:   Raster getRaster(int x, int y, int w, int h);
  76: } // interface PaintContext