--- /dev/null Thu Jan 01 00:00:00 1970 +0000
+++ b/src/demo/share/jfc/J2Ddemo/java2d/demos/Arcs_Curves/BezierAnim.java Mon May 14 08:58:32 2018 -0700
@@ -0,0 +1,339 @@
+/*
+ *
+ * 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.Arcs_Curves;
+
+
+import static java.awt.Color.BLUE;
+import static java.awt.Color.GRAY;
+import static java.awt.Color.GREEN;
+import static java.awt.Color.RED;
+import static java.awt.Color.WHITE;
+import static java.awt.Color.YELLOW;
+import java.awt.BasicStroke;
+import java.awt.Color;
+import java.awt.Component;
+import java.awt.Dimension;
+import java.awt.Font;
+import java.awt.GradientPaint;
+import java.awt.Graphics;
+import java.awt.Graphics2D;
+import java.awt.Paint;
+import java.awt.Rectangle;
+import java.awt.TexturePaint;
+import java.awt.event.ActionEvent;
+import java.awt.event.ActionListener;
+import java.awt.geom.GeneralPath;
+import java.awt.geom.Path2D;
+import java.awt.image.BufferedImage;
+import java2d.AnimatingControlsSurface;
+import java2d.CustomControls;
+import javax.swing.Icon;
+import javax.swing.JMenu;
+import javax.swing.JMenuBar;
+import javax.swing.JMenuItem;
+
+
+/**
+ * Animated Bezier Curve with controls for different draw & fill paints.
+ */
+@SuppressWarnings("serial")
+public class BezierAnim extends AnimatingControlsSurface {
+
+ private static final int NUMPTS = 6;
+ protected BasicStroke solid = new BasicStroke(10.0f,
+ BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND);
+ protected BasicStroke dashed = new BasicStroke(10.0f,
+ BasicStroke.CAP_BUTT, BasicStroke.JOIN_ROUND, 10, new float[] { 5 },
+ 0);
+ private float animpts[] = new float[NUMPTS * 2];
+ private float deltas[] = new float[NUMPTS * 2];
+ protected Paint fillPaint, drawPaint;
+ protected boolean doFill = true;
+ protected boolean doDraw = true;
+ protected GradientPaint gradient;
+ protected BasicStroke stroke;
+
+ public BezierAnim() {
+ setBackground(WHITE);
+ gradient = new GradientPaint(0, 0, RED, 200, 200, YELLOW);
+ fillPaint = gradient;
+ drawPaint = BLUE;
+ stroke = solid;
+ setControls(new Component[] { new DemoControls(this) });
+ }
+
+ public void animate(float[] pts, float[] deltas, int index, int limit) {
+ float newpt = pts[index] + deltas[index];
+ if (newpt <= 0) {
+ newpt = -newpt;
+ deltas[index] = (float) (Math.random() * 4.0 + 2.0);
+ } else if (newpt >= limit) {
+ newpt = 2.0f * limit - newpt;
+ deltas[index] = -(float) (Math.random() * 4.0 + 2.0);
+ }
+ pts[index] = newpt;
+ }
+
+ @Override
+ public void reset(int w, int h) {
+ for (int i = 0; i < animpts.length; i += 2) {
+ animpts[i + 0] = (float) (Math.random() * w);
+ animpts[i + 1] = (float) (Math.random() * h);
+ deltas[i + 0] = (float) (Math.random() * 6.0 + 4.0);
+ deltas[i + 1] = (float) (Math.random() * 6.0 + 4.0);
+ if (animpts[i + 0] > w / 2.0f) {
+ deltas[i + 0] = -deltas[i + 0];
+ }
+ if (animpts[i + 1] > h / 2.0f) {
+ deltas[i + 1] = -deltas[i + 1];
+ }
+ }
+ gradient = new GradientPaint(0, 0, RED, w * .7f, h * .7f, YELLOW);
+ }
+
+ @Override
+ public void step(int w, int h) {
+ for (int i = 0; i < animpts.length; i += 2) {
+ animate(animpts, deltas, i + 0, w);
+ animate(animpts, deltas, i + 1, h);
+ }
+ }
+
+ @Override
+ public void render(int w, int h, Graphics2D g2) {
+ float[] ctrlpts = animpts;
+ int len = ctrlpts.length;
+ float prevx = ctrlpts[len - 2];
+ float prevy = ctrlpts[len - 1];
+ float curx = ctrlpts[0];
+ float cury = ctrlpts[1];
+ float midx = (curx + prevx) / 2.0f;
+ float midy = (cury + prevy) / 2.0f;
+ GeneralPath gp = new GeneralPath(Path2D.WIND_NON_ZERO);
+ gp.moveTo(midx, midy);
+ for (int i = 2; i <= ctrlpts.length; i += 2) {
+ float x1 = (midx + curx) / 2.0f;
+ float y1 = (midy + cury) / 2.0f;
+ prevx = curx;
+ prevy = cury;
+ if (i < ctrlpts.length) {
+ curx = ctrlpts[i + 0];
+ cury = ctrlpts[i + 1];
+ } else {
+ curx = ctrlpts[0];
+ cury = ctrlpts[1];
+ }
+ midx = (curx + prevx) / 2.0f;
+ midy = (cury + prevy) / 2.0f;
+ float x2 = (prevx + midx) / 2.0f;
+ float y2 = (prevy + midy) / 2.0f;
+ gp.curveTo(x1, y1, x2, y2, midx, midy);
+ }
+ gp.closePath();
+ if (doDraw) {
+ g2.setPaint(drawPaint);
+ g2.setStroke(stroke);
+ g2.draw(gp);
+ }
+ if (doFill) {
+ if (fillPaint instanceof GradientPaint) {
+ fillPaint = gradient;
+ }
+ g2.setPaint(fillPaint);
+ g2.fill(gp);
+ }
+ }
+
+ public static void main(String argv[]) {
+ createDemoFrame(new BezierAnim());
+ }
+
+
+ static class DemoControls extends CustomControls implements ActionListener {
+
+ static final TexturePaint tp1, tp2;
+
+ static {
+ BufferedImage bi = new BufferedImage(2, 1,
+ BufferedImage.TYPE_INT_RGB);
+ bi.setRGB(0, 0, 0xff00ff00);
+ bi.setRGB(1, 0, 0xffff0000);
+ tp1 = new TexturePaint(bi, new Rectangle(0, 0, 2, 1));
+ bi = new BufferedImage(2, 1, BufferedImage.TYPE_INT_RGB);
+ bi.setRGB(0, 0, 0xff0000ff);
+ bi.setRGB(1, 0, 0xffff0000);
+ tp2 = new TexturePaint(bi, new Rectangle(0, 0, 2, 1));
+ }
+ BezierAnim demo;
+ static Paint drawPaints[] = { new Color(0, 0, 0, 0), BLUE, new Color(0,
+ 0, 255, 126),
+ BLUE, tp2 };
+ static String drawName[] = { "No Draw", "Blue", "Blue w/ Alpha",
+ "Blue Dash", "Texture" };
+ static Paint fillPaints[] = { new Color(0, 0, 0, 0), GREEN, new Color(0,
+ 255, 0, 126),
+ tp1, new GradientPaint(0, 0, RED, 30, 30, YELLOW) };
+ String fillName[] = { "No Fill", "Green", "Green w/ Alpha", "Texture",
+ "Gradient" };
+ JMenu fillMenu, drawMenu;
+ JMenuItem fillMI[] = new JMenuItem[fillPaints.length];
+ JMenuItem drawMI[] = new JMenuItem[drawPaints.length];
+ PaintedIcon fillIcons[] = new PaintedIcon[fillPaints.length];
+ PaintedIcon drawIcons[] = new PaintedIcon[drawPaints.length];
+ Font font = new Font(Font.SERIF, Font.PLAIN, 10);
+
+ @SuppressWarnings("LeakingThisInConstructor")
+ public DemoControls(BezierAnim demo) {
+ super(demo.name);
+ this.demo = demo;
+
+ JMenuBar drawMenuBar = new JMenuBar();
+ add(drawMenuBar);
+
+ JMenuBar fillMenuBar = new JMenuBar();
+ add(fillMenuBar);
+
+ drawMenu = drawMenuBar.add(new JMenu("Draw Choice"));
+ drawMenu.setFont(font);
+
+ for (int i = 0; i < drawPaints.length; i++) {
+ drawIcons[i] = new PaintedIcon(drawPaints[i]);
+ drawMI[i] = drawMenu.add(new JMenuItem(drawName[i]));
+ drawMI[i].setFont(font);
+ drawMI[i].setIcon(drawIcons[i]);
+ drawMI[i].addActionListener(this);
+ }
+ drawMenu.setIcon(drawIcons[1]);
+
+ fillMenu = fillMenuBar.add(new JMenu("Fill Choice"));
+ fillMenu.setFont(font);
+ for (int i = 0; i < fillPaints.length; i++) {
+ fillIcons[i] = new PaintedIcon(fillPaints[i]);
+ fillMI[i] = fillMenu.add(new JMenuItem(fillName[i]));
+ fillMI[i].setFont(font);
+ fillMI[i].setIcon(fillIcons[i]);
+ fillMI[i].addActionListener(this);
+ }
+ fillMenu.setIcon(fillIcons[fillPaints.length - 1]);
+ }
+
+ @Override
+ public void actionPerformed(ActionEvent e) {
+ Object obj = e.getSource();
+ for (int i = 0; i < fillPaints.length; i++) {
+ if (obj.equals(fillMI[i])) {
+ demo.doFill = true;
+ demo.fillPaint = fillPaints[i];
+ fillMenu.setIcon(fillIcons[i]);
+ break;
+ }
+ }
+ for (int i = 0; i < drawPaints.length; i++) {
+ if (obj.equals(drawMI[i])) {
+ demo.doDraw = true;
+ demo.drawPaint = drawPaints[i];
+ if (((JMenuItem) obj).getText().endsWith("Dash")) {
+ demo.stroke = demo.dashed;
+ } else {
+ demo.stroke = demo.solid;
+ }
+ drawMenu.setIcon(drawIcons[i]);
+ break;
+ }
+ }
+ if (obj.equals(fillMI[0])) {
+ demo.doFill = false;
+ } else if (obj.equals(drawMI[0])) {
+ demo.doDraw = false;
+ }
+ if (!demo.animating.running()) {
+ demo.repaint();
+ }
+ }
+
+ @Override
+ public Dimension getPreferredSize() {
+ return new Dimension(200, 36);
+ }
+
+ @Override
+ @SuppressWarnings("SleepWhileHoldingLock")
+ public void run() {
+ Thread me = Thread.currentThread();
+ while (thread == me) {
+ for (JMenuItem dmi : drawMI) {
+ dmi.doClick();
+ for (JMenuItem fmi : fillMI) {
+ fmi.doClick();
+ try {
+ Thread.sleep(3000 + (long) (Math.random() * 3000));
+ } catch (InterruptedException e) {
+ break;
+ }
+ }
+ }
+ }
+ thread = null;
+ }
+
+
+ static class PaintedIcon implements Icon {
+
+ Paint paint;
+
+ public PaintedIcon(Paint p) {
+ this.paint = p;
+ }
+
+ @Override
+ public void paintIcon(Component c, Graphics g, int x, int y) {
+ Graphics2D g2 = (Graphics2D) g;
+ g2.setPaint(paint);
+ g2.fillRect(x, y, getIconWidth(), getIconHeight());
+ g2.setColor(GRAY);
+ g2.draw3DRect(x, y, getIconWidth() - 1, getIconHeight() - 1,
+ true);
+ }
+
+ @Override
+ public int getIconWidth() {
+ return 12;
+ }
+
+ @Override
+ public int getIconHeight() {
+ return 12;
+ }
+ } // End PaintedIcon class
+ } // End DemoControls class
+} // End BezierAnim class
+