Behold, Nenya, Ring of Water and repository for our media and animation related

goodies, both Java 2D and LWJGL/JME 3D.


git-svn-id: svn+ssh://src.earth.threerings.net/nenya/trunk@1 ed5b42cb-e716-0410-a449-f6a68f950b19

src/java/com/threerings/media/sprite/LabelSprite.java

@@ -0,0 +1,115 @@
+//
+// $Id: LabelSprite.java 3542 2005-05-06 03:01:43Z mdb $
+//
+// Narya library - tools for developing networked games
+// Copyright (C) 2002-2004 Three Rings Design, Inc., All Rights Reserved
+// http://www.threerings.net/code/narya/
+//
+// This library is free software; you can redistribute it and/or modify it
+// under the terms of the GNU Lesser General Public License as published
+// by the Free Software Foundation; either version 2.1 of the License, or
+// (at your option) any later version.
+//
+// This library 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
+// Lesser General Public License for more details.
+//
+// You should have received a copy of the GNU Lesser General Public
+// License along with this library; if not, write to the Free Software
+// Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
+
+package com.threerings.media.sprite;
+
+import java.awt.Dimension;
+import java.awt.Graphics2D;
+import java.awt.RenderingHints;
+
+import com.samskivert.swing.Label;
+
+/**
+ * A sprite that uses a label to render itself.  If the label has not been
+ * previously laid out (see {@link Label#layout}) it will be done when the
+ * sprite is added to a media panel.  If the label is altered after the
+ * sprite is created, {@link #updateBounds} should be called.
+ */
+public class LabelSprite extends Sprite
+{
+    /**
+     * Constructs a label sprite that renders itself with the specified
+     * label.
+     */
+    public LabelSprite (Label label)
+    {
+        _label = label;
+    }
+
+    /**
+     * Returns the label displayed by this sprite.
+     */
+    public Label getLabel ()
+    {
+        return _label;
+    }
+
+    /**
+     * Indicates that our label should be rendered with antialiased text.
+     */
+    public void setAntiAliased (boolean antiAliased)
+    {
+        _antiAliased = antiAliased;
+    }
+
+    /**
+     * Updates the bounds of the sprite after a change to the label.
+     */
+    public void updateBounds ()
+    {
+        Dimension size = _label.getSize();
+        _bounds.width = size.width;
+        _bounds.height = size.height;
+    }
+    
+    // documentation inherited
+    protected void init ()
+    {
+        super.init();
+
+        // if our label is not yet laid out, do the deed
+        if (!_label.isLaidOut()) {
+            layoutLabel();
+        }
+
+        // size the bounds to fit our label
+        updateBounds();        
+    }
+
+    // documentation inherited
+    public void paint (Graphics2D gfx)
+    {
+        _label.render(gfx, _bounds.x, _bounds.y);
+    }
+
+    /**
+     * Lays out our underlying label which must be done if the text is
+     * changed.
+     */
+    protected void layoutLabel ()
+    {
+        Graphics2D gfx = (Graphics2D)_mgr.getMediaPanel().getGraphics();
+        if (gfx != null) {
+            gfx.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
+                                 (_antiAliased) ?
+                                 RenderingHints.VALUE_ANTIALIAS_ON :
+                                 RenderingHints.VALUE_ANTIALIAS_OFF);
+            _label.layout(gfx);
+            gfx.dispose();
+        }
+    }
+
+    /** The label associated with this sprite. */
+    protected Label _label;
+
+    /** Whether or not to use anti-aliased rendering. */
+    protected boolean _antiAliased;
+}