From 3b311d39a87864e759af5996ff877a530e84e98c Mon Sep 17 00:00:00 2001
From: mdb <mdb@6335cc39-0255-0410-8fd6-9bcaacd3b74c>
Date: Sun, 3 Mar 2002 07:03:20 +0000
Subject: [PATCH] Changed the way outlines are rendered. Using
 TextLayout.getOutline() is more correct but results in a crappy outline on
 anything less than an extraordinarily large font. The "draw the same text
 offset by one pixel in each of the four directions" method results in much
 more readable results with sensibly sized fonts.

git-svn-id: https://samskivert.googlecode.com/svn/trunk@626 6335cc39-0255-0410-8fd6-9bcaacd3b74c
---
 .../src/java/com/samskivert/swing/Label.java  | 35 ++++++++++++++++++-
 1 file changed, 34 insertions(+), 1 deletion(-)

diff --git a/projects/samskivert/src/java/com/samskivert/swing/Label.java b/projects/samskivert/src/java/com/samskivert/swing/Label.java
index 6ab58d91..7afc24b3 100644
--- a/projects/samskivert/src/java/com/samskivert/swing/Label.java
+++ b/projects/samskivert/src/java/com/samskivert/swing/Label.java
@@ -1,17 +1,20 @@
 //
-// $Id: Label.java,v 1.4 2001/12/20 02:00:12 mdb Exp $
+// $Id: Label.java,v 1.5 2002/03/03 07:03:20 mdb Exp $
 
 package com.samskivert.swing;
 
+import java.awt.Color;
 import java.awt.Dimension;
 import java.awt.Font;
 import java.awt.Graphics2D;
+import java.awt.Shape;
 
 import java.awt.font.TextLayout;
 import java.awt.font.FontRenderContext;
 import java.awt.font.LineBreakMeasurer;
 import java.awt.font.TextAttribute;
 
+import java.awt.geom.AffineTransform;
 import java.awt.geom.Point2D;
 import java.awt.geom.Rectangle2D;
 
@@ -71,6 +74,18 @@ public class Label implements SwingConstants
         _font = font;
     }
 
+    /**
+     * Instructs the label to render the text outlined in the specified
+     * color when rendering. The text itself will be rendered in whatever
+     * color is currently set in the graphics context, but the outline
+     * will always be in the specified color. Set the outline color to
+     * <code>null</code> to disable outlining (which is the default).
+     */
+    public void setOutlineColor (Color color)
+    {
+        _outlineColor = color;
+    }
+
     /**
      * Sets the alignment of the text within the label to either {@link
      * SwingConstants#LEFT}, {@link SwingConstants#RIGHT}, or {@link
@@ -231,7 +246,21 @@ public class Label implements SwingConstants
             case CENTER: dx = extra/2; break;
             }
 
+            // render the outline using the hacky, but much nicer than
+            // using "real" outlines (via TextLayout.getOutline), method
+            if (_outlineColor != null) {
+                Color old = gfx.getColor();
+                gfx.setColor(_outlineColor);
+                layout.draw(gfx, x + dx - 1, y - 1);
+                layout.draw(gfx, x + dx - 1, y + 1);
+                layout.draw(gfx, x + dx + 1, y + 1);
+                layout.draw(gfx, x + dx + 1, y - 1);
+                gfx.setColor(old);
+            }
+
+            // and draw the text itself
             layout.draw(gfx, x + dx, y);
+
             y += layout.getDescent() + layout.getLeading();
         }
     }
@@ -277,4 +306,8 @@ public class Label implements SwingConstants
 
     /** Formatted text layout instances that contain each line of text. */
     protected TextLayout[] _layouts;
+
+    /** The color in which to outline the text when rendering or null if
+     * the text should not be outlined. */
+    protected Color _outlineColor = null;
 }