src/demo/share/jfc/J2Ddemo/java2d/demos/Fonts/Tree.java
changeset 50146 0bb0e464ee76
child 52252 de9486d74a74
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/src/demo/share/jfc/J2Ddemo/java2d/demos/Fonts/Tree.java	Mon May 14 08:58:32 2018 -0700
@@ -0,0 +1,129 @@
+/*
+ *
+ * Copyright (c) 2007, 2011, Oracle and/or its affiliates. All rights reserved.
+ *
+ * Redistribution and use in source and binary forms, with or without
+ * modification, are permitted provided that the following conditions
+ * are met:
+ *
+ *   - Redistributions of source code must retain the above copyright
+ *     notice, this list of conditions and the following disclaimer.
+ *
+ *   - Redistributions in binary form must reproduce the above copyright
+ *     notice, this list of conditions and the following disclaimer in the
+ *     documentation and/or other materials provided with the distribution.
+ *
+ *   - Neither the name of Oracle nor the names of its
+ *     contributors may be used to endorse or promote products derived
+ *     from this software without specific prior written permission.
+ *
+ * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS
+ * IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO,
+ * THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
+ * PURPOSE ARE DISCLAIMED.  IN NO EVENT SHALL THE COPYRIGHT OWNER OR
+ * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
+ * EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
+ * PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
+ * PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
+ * LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
+ * NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
+ * SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
+ */
+package java2d.demos.Fonts;
+
+
+import static java.awt.Color.BLUE;
+import static java.awt.Color.GREEN;
+import static java.awt.Color.RED;
+import static java.awt.Color.WHITE;
+import java.awt.Color;
+import java.awt.Font;
+import java.awt.Graphics2D;
+import java.awt.font.TextLayout;
+import java.awt.geom.AffineTransform;
+import java2d.AnimatingSurface;
+
+
+/**
+ * Transformation of characters.
+ */
+@SuppressWarnings("serial")
+public class Tree extends AnimatingSurface {
+
+    private char theC = 'A';
+    private Character theT = new Character(theC);
+    private Character theR = new Character((char) (theC + 1));
+
+    public Tree() {
+        setBackground(WHITE);
+    }
+
+    @Override
+    public void reset(int w, int h) {
+    }
+
+    @Override
+    public void step(int w, int h) {
+        setSleepAmount(4000);
+        theT = new Character(theC = ((char) (theC + 1)));
+        theR = new Character((char) (theC + 1));
+        if (theR.compareTo(new Character('z')) == 0) {
+            theC = 'A';
+        }
+    }
+
+    @Override
+    public void render(int w, int h, Graphics2D g2) {
+        int mindim = Math.min(w, h);
+        AffineTransform at = new AffineTransform();
+        at.translate((w - mindim) / 2.0,
+                (h - mindim) / 2.0);
+        at.scale(mindim, mindim);
+        at.translate(0.5, 0.5);
+        at.scale(0.3, 0.3);
+        at.translate(-(Twidth + Rwidth), FontHeight / 4.0);
+        g2.transform(at);
+        tree(g2, mindim * 0.3, 0);
+
+    }
+    static Font theFont = new Font(Font.SERIF, Font.PLAIN, 1);
+    static double Twidth = 0.6;
+    static double Rwidth = 0.6;
+    static double FontHeight = 0.75;
+    static Color colors[] = { BLUE,
+        RED.darker(),
+        GREEN.darker() };
+
+    public void tree(Graphics2D g2d, double size, int phase) {
+        g2d.setColor(colors[phase % 3]);
+        new TextLayout(theT.toString(), theFont, g2d.getFontRenderContext()).
+                draw(g2d, 0.0f, 0.0f);
+        if (size > 10.0) {
+            AffineTransform at = new AffineTransform();
+            at.setToTranslation(Twidth, -0.1);
+            at.scale(0.6, 0.6);
+            g2d.transform(at);
+            size *= 0.6;
+            new TextLayout(theR.toString(), theFont, g2d.getFontRenderContext()).
+                    draw(g2d, 0.0f, 0.0f);
+            at.setToTranslation(Rwidth + 0.75, 0);
+            g2d.transform(at);
+            Graphics2D g2dt = (Graphics2D) g2d.create();
+            at.setToRotation(-Math.PI / 2.0);
+            g2dt.transform(at);
+            tree(g2dt, size, phase + 1);
+            g2dt.dispose();
+            at.setToTranslation(.75, 0);
+            at.rotate(-Math.PI / 2.0);
+            at.scale(-1.0, 1.0);
+            at.translate(-Twidth, 0);
+            g2d.transform(at);
+            tree(g2d, size, phase);
+        }
+        g2d.setTransform(new AffineTransform());
+    }
+
+    public static void main(String argv[]) {
+        createDemoFrame(new Tree());
+    }
+}