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Java Source | 1998-12-01 | 6.3 KB | 198 lines |
- /*
- * @(#)TextureChooser.java 1.18 98/09/13
- *
- * Copyright 1998 by Sun Microsystems, Inc.,
- * 901 San Antonio Road, Palo Alto, California, 94303, U.S.A.
- * All rights reserved.
- *
- * This software is the confidential and proprietary information
- * of Sun Microsystems, Inc. ("Confidential Information"). You
- * shall not disclose such Confidential Information and shall use
- * it only in accordance with the terms of the license agreement
- * you entered into with Sun.
- */
-
-
- import java.awt.*;
- import java.awt.geom.Ellipse2D;
- import java.awt.image.BufferedImage;
- import java.awt.event.MouseListener;
- import java.awt.event.MouseEvent;
- import java.awt.font.TextLayout;
- import java.awt.font.FontRenderContext;
- import javax.swing.JPanel;
- import javax.swing.border.TitledBorder;
- import javax.swing.border.EtchedBorder;
- import java.awt.event.WindowEvent;
- import java.awt.event.WindowAdapter;
- import java.net.URL;
-
-
- /**
- * Four types of Paint displayed: Geometry, Text & Image Textures and
- * a Gradient Paint. Paints can be selected with the Mouse.
- */
- public class TextureChooser extends JPanel {
-
- static public Object texture = getGeomTexture();
- public int num;
-
- public TextureChooser(int num) {
- this.num = num;
- setLayout(new GridLayout(0,2,5,5));
- setBorder(new TitledBorder(new EtchedBorder(), "Texture Chooser"));
-
- add(new ChooserComponent(getGeomTexture(), this, 0));
- add(new ChooserComponent(getImageTexture(), this, 1));
- add(new ChooserComponent(getTextTexture(), this, 2));
- add(new ChooserComponent(getGradientPaint(), this, 3));
- }
-
-
- static public TexturePaint getGeomTexture() {
- BufferedImage bi = new BufferedImage(5, 5, BufferedImage.TYPE_INT_RGB);
- Graphics2D tG2 = bi.createGraphics();
- tG2.setBackground(Color.white);
- tG2.clearRect(0,0,5,5);
- tG2.setColor(new Color(211,211,211,200));
- tG2.fill(new Ellipse2D.Float(0,0,5,5));
- Rectangle r = new Rectangle(0,0,5,5);
- return new TexturePaint(bi,r);
- }
-
- public TexturePaint getImageTexture() {
- URL url = TextureChooser.class.getResource("images/HotJava-16.gif");
- Image img = getToolkit().getImage(url);
- try {
- MediaTracker tracker = new MediaTracker(this);
- tracker.addImage(img, 0);
- tracker.waitForID(0);
- } catch (Exception e) {}
- int iw = img.getWidth(this);
- int ih = img.getHeight(this);
- BufferedImage bi = new BufferedImage(iw, ih, BufferedImage.TYPE_INT_RGB);
- Graphics2D tG2 = bi.createGraphics();
- tG2.drawImage(img, 0, 0, this);
- Rectangle r = new Rectangle(0,0,iw,ih);
- return new TexturePaint(bi,r);
- }
-
-
- public TexturePaint getTextTexture() {
- Font f = new Font("Times New Roman", Font.BOLD, 10);
- TextLayout tl = new TextLayout("Java2D", f, new FontRenderContext(null, false, false));
- int sw = (int) tl.getBounds().getWidth();
- int sh = (int) (tl.getAscent()+tl.getDescent());
- BufferedImage bi = new BufferedImage(sw, sh, BufferedImage.TYPE_INT_RGB);
- Graphics2D tG2 = bi.createGraphics();
- tG2.setBackground(Color.white);
- tG2.clearRect(0,0,sw,sh);
- tG2.setColor(Color.lightGray);
- tl.draw(tG2, 0, (float) tl.getAscent());
- Rectangle r = new Rectangle(0,0,sw,sh);
- return new TexturePaint(bi,r);
- }
-
-
- public GradientPaint getGradientPaint() {
- return new GradientPaint(0,0,Color.white,80,0,Color.green);
- }
-
- public class ChooserComponent extends JPanel implements MouseListener {
-
- public boolean clickedFrame;
- private int num;
- private TextureChooser tc;
- private boolean enterExitFrame = false;
- private Object t;
-
- public ChooserComponent(Object t, TextureChooser tc, int num) {
- setBackground(Color.white);
- this.t = t;
- this.tc = tc;
- this.clickedFrame = (num == tc.num);
- this.num = num;
- if (num == tc.num)
- tc.texture = t;
- addMouseListener(this);
- }
-
- public void paintComponent(Graphics g) {
- super.paintComponent(g);
- Graphics2D g2 = (Graphics2D) g;
- int w = getSize().width;
- int h = getSize().height;
- if (t instanceof TexturePaint)
- g2.setPaint((TexturePaint) t);
- else {
- g2.setPaint((GradientPaint) t);
- }
- g2.fill(new Rectangle(0,0,w,h));
- if (clickedFrame || enterExitFrame) {
- g2.setColor(Color.gray);
- BasicStroke bs = new BasicStroke(3, BasicStroke.CAP_BUTT,
- BasicStroke.JOIN_MITER);
- g2.setStroke(bs);
- g2.drawRect(0,0,w-1,h-1);
- tc.num = num;
- }
- }
-
- public void mouseClicked(MouseEvent e) {
- tc.texture = t;
- clickedFrame = true;
-
- Component cmps[] = tc.getComponents();
- for (int i = 0; i < cmps.length; i++) {
- if (cmps[i] instanceof ChooserComponent) {
- ChooserComponent cc = (ChooserComponent) cmps[i];
- if (!cc.equals(this) && cc.clickedFrame) {
- cc.clickedFrame = false;
- cc.repaint();
- }
- }
- }
- }
-
- public void mousePressed(MouseEvent e) {
- }
-
- public void mouseReleased(MouseEvent e) {
- }
-
- public void mouseEntered(MouseEvent e) {
- enterExitFrame = true;
- repaint();
- }
-
- public void mouseExited(MouseEvent e) {
- enterExitFrame = false;
- repaint();
- }
-
- public Dimension getMinimumSize() {
- return getPreferredSize();
- }
-
- public Dimension getMaximumSize() {
- return getPreferredSize();
- }
-
- public Dimension getPreferredSize() {
- return new Dimension(30,30);
- }
-
- }
-
- public static void main(String s[]) {
- Frame f = new Frame("Java2D Demo - TextureChooser");
- f.addWindowListener(new WindowAdapter() {
- public void windowClosing(WindowEvent e) {System.exit(0);}
- });
- f.add("Center", new TextureChooser(0));
- f.pack();
- f.setSize(new Dimension(400,400));
- f.show();
- }
- }
-