1 files changed, 85 insertions, 0 deletions
diff --git a/src/proguard/gui/splash/ClipSprite.java b/src/proguard/gui/splash/ClipSprite.java
new file mode 100644
index 0000000..55f9eac
--- /dev/null
+++ b/src/proguard/gui/splash/ClipSprite.java
@@ -0,0 +1,85 @@
+/*
+ * ProGuard -- shrinking, optimization, obfuscation, and preverification
+ *             of Java bytecode.
+ *
+ * Copyright (c) 2002-2009 Eric Lafortune (eric@graphics.cornell.edu)
+ *
+ * This program is free software; you can redistribute it and/or modify it
+ * under the terms of the GNU General Public License as published by the Free
+ * Software Foundation; either version 2 of the License, or (at your option)
+ * any later version.
+ *
+ * This program is distributed in the hope that it will be useful, but WITHOUT
+ * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
+ * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
+ * more details.
+ *
+ * You should have received a copy of the GNU General Public License along
+ * with this program; if not, write to the Free Software Foundation, Inc.,
+ * 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+ */
+package proguard.gui.splash;
+
+import java.awt.*;
+
+/**
+ * This Sprite encapsulates another Sprite, which is clipped by a clip Sprite.
+ *
+ * @author Eric Lafortune
+ */
+public class ClipSprite implements Sprite
+{
+    private final VariableColor insideClipColor;
+    private final VariableColor outsideClipColor;
+    private final Sprite        clipSprite;
+    private final Sprite        sprite;
+
+
+    /**
+     * Creates a new ClipSprite.
+     * @param insideClipColor  the background color inside the clip sprite.
+     * @param outsideClipColor the background color outside the clip sprite.
+     * @param clipSprite       the clip Sprite.
+     * @param sprite           the clipped Sprite.
+     */
+    public ClipSprite(VariableColor insideClipColor,
+                      VariableColor outsideClipColor,
+                      Sprite        clipSprite,
+                      Sprite        sprite)
+    {
+        this.insideClipColor  = insideClipColor;
+        this.outsideClipColor = outsideClipColor;
+        this.clipSprite       = clipSprite;
+        this.sprite           = sprite;
+    }
+
+
+    // Implementation for Sprite.
+
+    public void paint(Graphics graphics, long time)
+    {
+        // Clear the background.
+        Color outsideColor = outsideClipColor.getColor(time);
+        Rectangle clip = graphics.getClipBounds();
+        graphics.setPaintMode();
+        graphics.setColor(outsideColor);
+        graphics.fillRect(0, 0, clip.width, clip.height);
+
+        // Draw the sprite in XOR mode.
+        OverrideGraphics2D g = new OverrideGraphics2D((Graphics2D)graphics);
+        Color insideColor = insideClipColor.getColor(time);
+        g.setOverrideXORMode(insideColor);
+        sprite.paint(g, time);
+        g.setOverrideXORMode(null);
+
+        // Clear the clip area.
+        g.setOverrideColor(insideColor);
+        clipSprite.paint(g, time);
+        g.setOverrideColor(null);
+
+        // Draw the sprite in XOR mode.
+        g.setOverrideXORMode(insideColor);
+        sprite.paint(g, time);
+        g.setOverrideXORMode(null);
+    }
+}