samples/java/java/util/win32/WinHandleAccess.java_wnt_only

   1
   2 //Title:        Geological editor
   3 //Version:
   4 //Copyright:    Copyright (c) 1998
   5 //Author:       User Interface Group (Nizhny Novgorod)
   6 //Company:      EQCC
   7 //Description:  Prototype of BRGM project
   8
   9
  10 package util.win32;
  11
  12 import sun.awt.DrawingSurface;
  13 import sun.awt.Win32DrawingSurface;
  14 import sun.awt.DrawingSurfaceInfo;
  15 import java.awt.peer.ComponentPeer;
  16 import java.awt.Component;
  17
  18
  19 public class WinHandleAccess implements util.handleAccess
  20 {
  21
  22   protected DrawingSurfaceInfo dsi;
  23   protected Win32DrawingSurface wds;
  24   protected int window, depth;
  25
  26   protected void achieveData(java.awt.Component c, java.awt.Graphics g)
  27   {
  28 //    System.out.println(">>> achieveData: Start...");
  29 //    System.out.println(">>> achieveData: Component = " + c);
  30 //    System.out.println(">>> achieveData: Graphics = " + g);
  31
  32     dsi=null;
  33     wds=null;
  34     window=0; depth=0;
  35
  36     ComponentPeer peer = c.getPeer();
  37 //    System.out.println(">>> achieveData: Peer = " + peer);
  38
  39     DrawingSurface ds = (DrawingSurface) peer;
  40 //    System.out.println(">>> achieveData: DrawingSurface = " + ds);
  41
  42     dsi = ds.getDrawingSurfaceInfo();
  43 //    System.out.println(">>> achieveData: DrawingSurface = " + dsi);
  44
  45     if(dsi!=null)
  46     {
  47       dsi.lock();
  48       wds = (Win32DrawingSurface)dsi.getSurface();
  49       dsi.unlock();
  50     }
  51 //    System.out.println(">>> achieveData: Win32DrawingSurface = " + wds);
  52
  53     if(wds!=null)
  54     {
  55       dsi.lock();
  56
  57       //window = wds.getHDC();
  58       window = wds.getHWnd();
  59       depth = wds.getDepth();
  60
  61 /*
  62       System.out.println("WinHandleAccess:");
  63       System.out.println("\t wds = " + wds);
  64       System.out.println("\t wds.Depth = " + wds.getDepth());
  65       System.out.println("\t wds.HDC = " + wds.getHDC());
  66       System.out.println("\t wds.HWnd = " + wds.getHWnd());
  67 */
  68
  69       dsi.unlock();
  70     }
  71
  72     if (wds==null)
  73       System.out.println("Win32HandleAccess.getWinHandle failed, because the given Component is NOT a Window-Component\n");
  74   }
  75
  76   public int getWinHandle(java.awt.Component c, java.awt.Graphics g)
  77   {
  78     achieveData(c, g);
  79     return window;
  80   }
  81
  82   public int getWinDepth(java.awt.Component c, java.awt.Graphics g)
  83   {
  84     achieveData(c, g);
  85     return depth;
  86   }
  87
  88   public int getVisualId(java.awt.GraphicsConfiguration gc)
  89   {
  90     return -1;
  91   } // Not avalaible under Windows
  92
  93   public WinHandleAccess()
  94   {
  95   }
  96
  97 }