1 files changed, 305 insertions, 0 deletions
diff --git a/libjava/gnu/awt/xlib/XGraphics.java b/libjava/gnu/awt/xlib/XGraphics.java
new file mode 100644
index 000000000..215c04dc1
--- /dev/null
+++ b/libjava/gnu/awt/xlib/XGraphics.java
@@ -0,0 +1,305 @@
+/* Copyright (C) 2000, 2003, 2004  Free Software Foundation
+
+   This file is part of libgcj.
+
+This software is copyrighted work licensed under the terms of the
+Libgcj License.  Please consult the file "LIBGCJ_LICENSE" for
+details.  */
+
+package gnu.awt.xlib;
+
+import java.awt.*;
+import java.awt.image.WritableRaster;
+import java.awt.image.Raster;
+import java.awt.image.DataBuffer;
+import java.awt.image.ColorModel;
+import java.awt.image.ImageObserver;
+import java.awt.image.BufferedImage;
+import gnu.gcj.xlib.GC;
+import gnu.gcj.xlib.XImage;
+import gnu.gcj.xlib.Drawable;
+import gnu.gcj.xlib.Window;
+import gnu.gcj.xlib.Drawable;
+import gnu.gcj.xlib.Pixmap;
+import gnu.gcj.xlib.Visual;
+import gnu.awt.j2d.DirectRasterGraphics;
+import gnu.awt.j2d.MappedRaster;
+
+public class XGraphics implements Cloneable, DirectRasterGraphics
+{
+  static class XRaster extends MappedRaster
+  {
+    XImage ximage;
+    
+    public XRaster(WritableRaster raster, XImage ximage, ColorModel cm)
+    {
+      super(raster, cm);
+      this.ximage = ximage;
+    }
+  }
+  
+  GC context;
+  XGraphicsConfiguration config;
+  Rectangle clipBounds;
+    
+  XFontMetrics metrics;
+
+
+  public Object clone()
+  {
+    try
+      {
+	XGraphics gfxCopy = (XGraphics) super.clone();
+	gfxCopy.context = context.create();
+	
+	return gfxCopy;
+      }
+    catch (CloneNotSupportedException ex)
+      {
+	// This should never happen.
+	throw new InternalError ();
+      }
+  }
+
+  public void dispose()
+  {
+    GC lContext = context;
+    context = null;
+    config = null;
+    clipBounds = null;
+    metrics = null;
+    
+    if (lContext != null)
+    {
+      lContext.dispose();
+    }	    
+  }
+
+  public XGraphics(Drawable drawable, XGraphicsConfiguration config)
+  {
+    context = GC.create(drawable);
+    this.config = config;
+  }  
+  
+  public void setColor(Color color)
+  {
+    if (color != null)
+      context.setForeground(config.getPixel(color));
+  }
+
+  public void setPaintMode()
+  {
+    throw new UnsupportedOperationException("not implemented");
+  }
+
+  public void setXORMode(Color c1)
+  {
+    throw new UnsupportedOperationException("not implemented");
+  }
+    
+  public void setFont(Font font)
+  {
+    if (font == null)
+      return;
+    if ((metrics != null) && font.equals(metrics.getFont()))
+      return;
+    metrics = config.getXFontMetrics(font);
+    if (metrics != null)
+      context.setFont(metrics.xfont);
+  }
+    
+  public FontMetrics getFontMetrics(Font font)
+  {
+    if ((metrics != null) && font.equals(metrics.getFont()))
+      return metrics;
+    
+    return config.getXFontMetrics(font);
+  }
+    
+  public void setClip(int x, int y, int width, int height)
+  {
+    Rectangle[] rects = { new Rectangle(x, y, width, height) };
+    context.setClipRectangles(rects);
+  }
+    
+  public void setClip(Shape clip)
+  {
+    /* TODO: create a special RectangleUnion shape that can be
+       used to draw advantage of the GCs ability to set multiple
+       rectangles. 
+    */
+
+    /* FIXME: creating all these objects is wasteful and can be
+       costly in the long run, since this code is run at every
+       expose. */
+    Rectangle newClipBounds = clip.getBounds();
+    
+    /* FIXME: decide whether this test code is worth anything
+     * (as of 2004-01-29, it prints frequently)
+    if ((clipBounds != null) && !clipBounds.contains(newClipBounds))
+      {
+	System.err.println("warning: old clip ("+ clipBounds +") does " +
+			   "not fully contain new clip (" +
+			   newClipBounds + ")");
+      }
+     */
+    clipBounds = newClipBounds;
+    Rectangle[] rects = { clipBounds };
+    context.setClipRectangles(rects);
+  }
+    
+  public void copyArea(int x, int y, int width, int height, int
+		       dx, int dy)
+  {
+    throw new UnsupportedOperationException("not implemented");
+  }
+    
+  public void drawLine(int x1, int y1, int x2, int y2)
+  {
+    context.drawLine(x1, y1, x2, y2);
+  }
+    
+  public void drawRect(int x, int y, int width, int height)
+  {
+    throw new UnsupportedOperationException("not implemented yet");
+  }
+    
+  public void fillRect(int x, int y, int width, int height)
+  {
+    context.fillRectangle(x, y, width, height);
+  }
+    
+  public void drawArc(int x, int y, int width, int height, int
+		      startAngle, int arcAngle)
+  {
+    context.drawArc (x, y, width, height, startAngle, arcAngle);
+  }
+    
+  public void fillArc(int x, int y, int width, int height, int
+		      startAngle, int arcAngle)
+  {
+    context.fillArc (x, y, width, height, startAngle, arcAngle);
+  }
+    
+  public void drawPolyline(int[] xPoints, int[] yPoints, int
+			   nPoints)
+  {
+    throw new UnsupportedOperationException("not implemented");
+  }
+    
+  public void drawPolygon(int[] xPoints, int[] yPoints, int
+			  nPoints)
+  {
+    throw new UnsupportedOperationException("not implemented");
+  }
+    
+  public void fillPolygon(int[] xPoints, int[] yPoints, int nPoints,
+			  int translateX, int translateY)
+  {
+    context.fillPolygon(xPoints, yPoints, nPoints, translateX, translateY);
+  }
+
+  public void drawString(String str, int x, int y)
+  {
+    context.drawString(str, x, y);
+  }
+
+  public boolean drawImage(Image img, int x, int y,
+			   ImageObserver observer)
+  {
+    if (img instanceof XOffScreenImage)
+    {
+      // FIXME: have to enforce clip, or is it OK as-is?
+      XOffScreenImage offScreenImage = (XOffScreenImage) img;
+      Pixmap pixmap = offScreenImage.getPixmap ();
+      context.copyArea (pixmap, 0, 0, x, y,
+        offScreenImage.getWidth (), offScreenImage.getHeight ());
+      return true;
+    }
+    if (clipBounds == null)
+      return false; // ***FIXME***
+
+    if (!(img instanceof BufferedImage))
+      {
+	throw new AWTError("unknown image class");
+      }
+	
+    BufferedImage bimg = (BufferedImage) img;
+
+    XImage ximg = (XImage) bimg.getProperty("gnu.gcj.xlib.XImage");
+    if (ximg == null)
+      {
+	System.err.println("FIXME: skipping null XImage, should " +
+			   "really do on the spot conversion");
+	return false;
+      }
+
+    /*
+      +------------------
+      |    clip
+      |     +---------+
+      | img |         |
+      |  +--+-------+ |
+      |  |  |       | | 
+      |  |  |       | |
+      |  |  +-------+-+
+      |  |          |
+      |  +----------+
+    */
+
+    int iLeft   = Math.max(x, clipBounds.x);
+    int iTop    = Math.max(y, clipBounds.y);
+    int iRight  = Math.min(x + bimg.getWidth(),
+			   clipBounds.x + clipBounds.width);
+    int iBottom = Math.min(y + bimg.getHeight(),
+			   clipBounds.y + clipBounds.height);
+    
+    int srcX = iLeft - x;
+    int srcY = iTop  - y;
+    
+    int width  = iRight  - iLeft;
+    int height = iBottom - iTop;
+    
+    if ((width > 0) && (height > 0))
+      context.putImage(ximg, srcX, srcY, iLeft, iTop, width, height);
+
+    return true;
+  }
+
+  public MappedRaster mapRaster(Rectangle bounds)
+  {
+    Visual visual = config.getVisual();
+    XImage ximage = new XImage(visual, bounds.width, bounds.height,
+			       false // do not auto allocate memory
+			       );
+
+    WritableRaster raster =
+      config.createRasterForXImage(ximage,
+				   new Point(bounds.x, bounds.y));
+    
+    DataBuffer dataB = raster.getDataBuffer();
+    XGraphicsConfiguration.attachData(ximage, dataB, 0);
+
+    Drawable drawable = context.getDrawable();
+
+    // TODO: restrict to clipping
+
+    Rectangle mBounds = drawable.copyIntoXImage(ximage, bounds, 0, 0);
+	
+    return new XRaster(raster, ximage, config.imageCM);
+  }
+    
+    
+  public void unmapRaster(MappedRaster mappedRaster)
+  {
+    XRaster xraster = (XRaster) mappedRaster;
+    XImage ximage = xraster.ximage;
+    Raster raster = xraster.getRaster();
+    int x = raster.getMinX();
+    int y = raster.getMinY();
+    int width = raster.getWidth();
+    int height = raster.getHeight();
+    
+    context.putImage(ximage, 0, 0, x, y, width, height);
+  }
+}