From a74d72f54db190be0c0a7915c60132cf1d420158 Mon Sep 17 00:00:00 2001
From: adam <adam@megacz.com>
Date: Sun, 9 Jan 2005 09:24:45 +0000
Subject: [PATCH] PixelBuffer becomes an interface

darcs-hash:20050109092445-5007d-6fdbba7ed6d93e02945607078c665af7c0859d48.gz
---
 src/org/ibex/graphics/PixelBuffer.java |   29 +++++++++++------------------
 1 file changed, 11 insertions(+), 18 deletions(-)

diff --git a/src/org/ibex/graphics/PixelBuffer.java b/src/org/ibex/graphics/PixelBuffer.java
index 5e9821b..14c0d25 100644
--- a/src/org/ibex/graphics/PixelBuffer.java
+++ b/src/org/ibex/graphics/PixelBuffer.java
@@ -3,6 +3,7 @@
 // You may not use this file except in compliance with the License.
 
 package org.ibex.graphics;
+import org.ibex.util.*;
 
 /**
  *  <p>
@@ -15,30 +16,21 @@ package org.ibex.graphics;
  *  method. These implementations may choose to use off-screen video
  *  ram for this purpose (for example, a Pixmap on X11).
  *  </p>
- *
- *  <p>
- *  Many of these functions come in pairs, one that uses ints and one
- *  that uses floats.  The int functions are intended for situations
- *  in which the CTM is the identity transform.
- *  </p>
  */
-public abstract class PixelBuffer {
+public interface PixelBuffer {
+    public abstract void drawLine(int x1, int y1, int x2, int y2, int color);
+    public abstract void fillTrapezoid(int x1, int x2, int y1, int x3, int x4, int y2, int color);
+    public abstract void drawGlyph(Font.Glyph source, int dx1, int dy1, int cx1, int cy1, int cx2, int cy2, int rgb, int bg);
+    public abstract void stroke(Polygon p, int color);
+    public abstract void fill(Polygon p, Paint paint);
+}
 
-    /** draw the picture at (dx1, dy1), cropping to (cx1, cy1, cx2, cy2) */
-    public abstract void drawPicture(Picture source, int dx1, int dy1, int cx1, int cy1, int cx2, int cy2);
 
-    /** fill a trapezoid whose top and bottom edges are horizontal */
-    public abstract void fillTrapezoid(int x1, int x2, int y1, int x3, int x4, int y2, int color);
 
-    /**
-     *  Same as drawPicture, but only uses the alpha channel of the Picture, and is allowed to destructively modify the RGB
-     *  channels of the Picture in the process.  This method may assume that the RGB channels of the image are all zero IFF it
-     *  restores this invariant before returning.
-     */
-    public abstract void drawGlyph(Font.Glyph source, int dx1, int dy1, int cx1, int cy1, int cx2, int cy2, int rgb);
 
+/*
     // FEATURE: we want floats (inter-pixel spacing) for antialiasing, but this hoses the fastpath line drawing... argh!
-    /** draws a line of width <tt>w</tt>; note that the coordinates here are <i>post-transform</i> */
+    // draws a line of width <tt>w</tt>; note that the coordinates here are <i>post-transform</i> 
     public void drawLine(int x1, int y1, int x2, int y2, int w, int color, boolean capped) {
 
 	if (y1 > y2) { int t = x1; x1 = x2; x2 = t; t = y1; y1 = y2; y2 = t; }
@@ -90,3 +82,4 @@ public abstract class PixelBuffer {
     }
 
 }
+*/
-- 
1.7.10.4