Java/2D Graphics GUI/Texture

Содержание

1 A texture is a bitmap image applied to a shape
2 A texture is a bitmap image applied to the surface in computer graphics.
3 Draw text along a curve
4 Set Text Attribute
5 Text effect: transparent
6 TexturePaint Demo
7 Text with a Texture

A texture is a bitmap image applied to a shape

  
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.TexturePaint;
import java.awt.image.BufferedImage;
import java.io.IOException;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Textures extends JPanel {
  BufferedImage s;
  public Textures() {
    try {
      s = ImageIO.read(this.getClass().getResource("s.png"));
    } catch (IOException e) {
      e.printStackTrace();
    }
  }
  public void paintComponent(Graphics g) {
    super.paintComponent(g);
    Graphics2D g2d = (Graphics2D) g;
    TexturePaint slatetp = new TexturePaint(s, new Rectangle(0, 0, 90, 60));
    g2d.setPaint(slatetp);
    g2d.fillRect(10, 15, 90, 60);
  }
  public static void main(String[] args) {
    JFrame frame = new JFrame("Textures");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(new Textures());
    frame.setSize(360, 120);
    frame.setVisible(true);
  }
}

A texture is a bitmap image applied to the surface in computer graphics.

  
import java.awt.Color;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.TexturePaint;
import java.awt.image.BufferedImage;
import java.io.IOException;
import java.net.URL;
import javax.imageio.ImageIO;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Textures extends JPanel {
  public void paintComponent(Graphics g) {
    super.paintComponent(g);
    Graphics2D g2d = (Graphics2D) g;
    g2d.setColor(new Color(212, 212, 212));
    g2d.drawRect(10, 15, 90, 60);
    BufferedImage bimage1 = null;
    URL url1 = ClassLoader.getSystemResource("a.png");
    try {
      bimage1 = ImageIO.read(url1);
    } catch (IOException ioe) {
      ioe.printStackTrace();
    }
    Rectangle rect1 = new Rectangle(0, 0, bimage1.getWidth(), bimage1.getHeight());
    TexturePaint texture1 = new TexturePaint(bimage1, rect1);
    g2d.setPaint(texture1);
    g2d.fillRect(10, 15, 90, 60);
  }
  public static void main(String[] args) {
    Textures rects = new Textures();
    JFrame frame = new JFrame("Textures");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(rects);
    frame.setSize(360, 210);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
  }
}

Draw text along a curve

  
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.Shape;
import java.awt.font.FontRenderContext;
import java.awt.font.GlyphVector;
import java.awt.geom.AffineTransform;
import java.awt.geom.Point2D;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class RollingText extends JPanel {
  public void paint(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;
    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
        RenderingHints.VALUE_ANTIALIAS_ON);
    String s = "Java Source and Support.";
    Font font = new Font("Serif", Font.PLAIN, 24);
    FontRenderContext frc = g2.getFontRenderContext();
    g2.translate(40, 80);
    GlyphVector gv = font.createGlyphVector(frc, s);
    int length = gv.getNumGlyphs();
    for (int i = 0; i < length; i++) {
      Point2D p = gv.getGlyphPosition(i);
      double theta = (double) i / (double) (length - 1) * Math.PI / 4;
      AffineTransform at = AffineTransform.getTranslateInstance(p.getX(),
          p.getY());
      at.rotate(theta);
      Shape glyph = gv.getGlyphOutline(i);
      Shape transformedGlyph = at.createTransformedShape(glyph);
      g2.fill(transformedGlyph);
    }
  }
  public static void main(String[] args) {
    JFrame f = new JFrame("RollingText v1.0");
    f.getContentPane().add(new RollingText());
    f.setSize(600, 300);
    f.setVisible(true);
  }
}

Set Text Attribute

  
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Image;
import java.awt.MediaTracker;
import java.awt.Toolkit;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.font.FontRenderContext;
import java.awt.font.GraphicAttribute;
import java.awt.font.ImageGraphicAttribute;
import java.awt.font.ShapeGraphicAttribute;
import java.awt.font.TextAttribute;
import java.awt.font.TextLayout;
import java.awt.geom.GeneralPath;
import java.awt.image.BufferedImage;
import java.text.AttributedCharacterIterator;
import java.text.AttributedString;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class AttributesApp extends JPanel {
  String text = "Java Source and Support";
  AttributedString attribString;
  AttributedCharacterIterator attribCharIterator;
  Image image;
  public static void main(String arg[]) {
    JFrame frame = new JFrame();
    frame.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
    frame.getContentPane().add("Center", new AttributesApp());
    frame.setSize(500, 200);
    frame.setVisible(true);
  }
  public AttributesApp() {
    setBackground(Color.lightGray);
    setSize(500, 200);
    attribString = new AttributedString(text);
    GeneralPath star = new GeneralPath();
    star.moveTo(0, 0);
    star.lineTo(10, 30);
    star.lineTo(-10, 10);
    star.lineTo(10, 10);
    star.lineTo(-10, 30);
    star.closePath();
    GraphicAttribute starShapeAttr = new ShapeGraphicAttribute(star,
        GraphicAttribute.TOP_ALIGNMENT, false);
    attribString.addAttribute(TextAttribute.CHAR_REPLACEMENT,
        starShapeAttr, 0, 1);
    attribString.addAttribute(TextAttribute.FOREGROUND, new Color(255, 255,
        0), 0, 1);
    int index = text.indexOf("Java Source");
    attribString.addAttribute(TextAttribute.FOREGROUND, Color.blue, index,
        index + 7);
    Font font = new Font("sanserif", Font.ITALIC, 40);
    attribString.addAttribute(TextAttribute.FONT, font, index, index + 7);
    loadImage();
    BufferedImage bimage = new BufferedImage(image.getWidth(this), image
        .getHeight(this), BufferedImage.TYPE_INT_ARGB);
    Graphics2D big = bimage.createGraphics();
    big.drawImage(image, null, this);
    GraphicAttribute javaImageAttr = new ImageGraphicAttribute(bimage,
        GraphicAttribute.TOP_ALIGNMENT, 0, 0);
    index = text.indexOf("Java");
    attribString.addAttribute(TextAttribute.CHAR_REPLACEMENT,
        javaImageAttr, index - 1, index);
    font = new Font("serif", Font.BOLD, 60);
    attribString.addAttribute(TextAttribute.FONT, font, index, index + 4);
    attribString.addAttribute(TextAttribute.FOREGROUND, new Color(243, 63,
        163), index, index + 4); // Start and end indexes.
    index = text.indexOf("source");
    attribString.addAttribute(TextAttribute.UNDERLINE,
        TextAttribute.UNDERLINE_ON, index, index + 2);
    index = text.indexOf("and support");
    font = new Font("sanserif", Font.ITALIC, 40);
    attribString.addAttribute(TextAttribute.FONT, font, index, index + 10);
    attribString.addAttribute(TextAttribute.FOREGROUND, Color.white, index,
        index + 2); // Start and end indexes.
    attribString.addAttribute(TextAttribute.FOREGROUND, Color.blue,
        index + 3, index + 10); // Start and end indexes.
  }
  public void loadImage() {
    image = Toolkit.getDefaultToolkit().getImage("largejexpLogo.gif");
    MediaTracker mt = new MediaTracker(this);
    mt.addImage(image, 1);
    try {
      mt.waitForAll();
    } catch (Exception e) {
      System.out.println("Exception while loading.");
    }
    if (image.getWidth(this) == -1) {
      System.out.println("no images");
      System.exit(0);
    }
  }
  public void paintComponent(Graphics g) {
    super.paintComponent(g);
    Graphics2D g2 = (Graphics2D) g;
    attribCharIterator = attribString.getIterator();
    FontRenderContext frc = new FontRenderContext(null, false, false);
    TextLayout layout = new TextLayout(attribCharIterator, frc);
    layout.draw(g2, 20, 100);
  }
}

Text effect: transparent

  
import java.awt.AlphaComposite;
import java.awt.Color;
import java.awt.ruposite;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import java.awt.geom.Rectangle2D;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class TransparentText extends JPanel {
  public void paint(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;
    // the rendering quality.
    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
        RenderingHints.VALUE_ANTIALIAS_ON);
    // a red rectangle.
    Rectangle2D r = new Rectangle2D.Double(50, 50, 550, 100);
    g2.setPaint(Color.red);
    g2.fill(r);
    // a composite with transparency.
    Composite c = AlphaComposite.getInstance(AlphaComposite.SRC_OVER, .4f);
    g2.setComposite(c);
    // Draw some blue text.
    g2.setPaint(Color.blue);
    g2.setFont(new Font("Times New Roman", Font.PLAIN, 72));
    g2.drawString("Java Source and Support", 25, 130);
  }
  public static void main(String[] args) {
    JFrame f = new JFrame();
    f.getContentPane().add(new TransparentText());
    f.setSize(800, 250);
    f.show();
  }
}

TexturePaint Demo

  
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.TexturePaint;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.image.BufferedImage;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class TexturePaintDemo extends JPanel {
  public void init() {
    setBackground(Color.white);
  }
  public void paint(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;
    BufferedImage bi = new BufferedImage(5, 5,
        BufferedImage.TYPE_INT_RGB);
    Graphics2D big = bi.createGraphics();
    big.setColor(Color.blue);
    big.fillRect(0, 0, 5, 5);
    big.setColor(Color.lightGray);
    big.fillOval(0, 0, 5, 5);
    Rectangle r = new Rectangle(0, 0, 5, 5);
    g2.setPaint(new TexturePaint(bi, r));
  
    Rectangle rect = new Rectangle(5,5,200,200);
    
    g2.fill(rect);
  }
  public static void main(String s[]) {
    JFrame f = new JFrame();
    f.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        System.exit(0);
      }
    });
    TexturePaintDemo p = new TexturePaintDemo();
    f.getContentPane().add("Center", p);
    p.init();
    f.pack();
    f.setSize(new Dimension(250, 250));
    f.show();
  }
}

Text with a Texture

  
/*
 * Copyright (c) Ian F. Darwin, http://www.darwinsys.ru/, 1996-2002.
 * All rights reserved. Software written by Ian F. Darwin and others.
 * $Id: LICENSE,v 1.8 2004/02/09 03:33:38 ian Exp $
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions
 * are met:
 * 1. Redistributions of source code must retain the above copyright
 *    notice, this list of conditions and the following disclaimer.
 * 2. 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.
 *
 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR 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 AUTHOR 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.
 * 
 * Java, the Duke mascot, and all variants of Sun"s Java "steaming coffee
 * cup" logo are trademarks of Sun Microsystems. Sun"s, and James Gosling"s,
 * pioneering role in inventing and promulgating (and standardizing) the Java 
 * language and environment is gratefully acknowledged.
 * 
 * The pioneering role of Dennis Ritchie and Bjarne Stroustrup, of AT&T, for
 * inventing predecessor languages C and C++ is also gratefully acknowledged.
 */
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Frame;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.Rectangle;
import java.awt.RenderingHints;
import java.awt.TexturePaint;
import java.awt.event.WindowAdapter;
import java.awt.event.WindowEvent;
import java.awt.image.BufferedImage;
import javax.swing.JComponent;
/**
 * Text with a Texture
 * 
 * @author Ian Darwin, http://www.darwinsys.ru/
 * @version $Id: TexturedText.java,v 1.5 2004/02/09 03:33:49 ian Exp $
 */
public class TexturedText extends JComponent {
  /** The image we draw in the texture */
  protected BufferedImage bim;
  /** The texture for painting. */
  TexturePaint tp;
  /** The string to draw. */
  String mesg = "Stripey";
  /** The font */
  Font myFont = new Font("Lucida Regular", Font.BOLD, 72);
  /** "main program" method - construct and show */
  public static void main(String[] av) {
    // create a TexturedText object, tell it to show up
    final Frame f = new Frame("TexturedText");
    TexturedText comp = new TexturedText();
    f.add(comp);
    f.addWindowListener(new WindowAdapter() {
      public void windowClosing(WindowEvent e) {
        f.setVisible(false);
        f.dispose();
        System.exit(0);
      }
    });
    f.pack();
    f.setLocation(200, 200);
    f.setVisible(true);
  }
  protected static Color[] colors = { Color.red, Color.blue, Color.yellow, };
  /** Construct the object */
  public TexturedText() {
    super();
    setBackground(Color.white);
    int width = 8, height = 8;
    bim = new BufferedImage(width, height, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = bim.createGraphics();
    for (int i = 0; i < width; i++) {
      g2.setPaint(colors[(i / 2) % colors.length]);
      g2.drawLine(0, i, i, 0);
      g2.drawLine(width - i, height, width, height - i);
    }
    Rectangle r = new Rectangle(0, 0, bim.getWidth(), bim.getHeight());
    tp = new TexturePaint(bim, r);
  }
  public void paint(Graphics g) {
    Graphics2D g2 = (Graphics2D) g;
    g2.setRenderingHint(RenderingHints.KEY_ANTIALIASING,
        RenderingHints.VALUE_ANTIALIAS_ON);
    g2.setPaint(tp);
    g2.setFont(myFont);
    g2.drawString(mesg, 20, 100);
  }
  public Dimension getMinimumSize() {
    return new Dimension(250, 100);
  }
  public Dimension getPreferredSize() {
    return new Dimension(320, 150);
  }
}

Java/2D Graphics GUI/Texture

Содержание

A texture is a bitmap image applied to a shape

A texture is a bitmap image applied to the surface in computer graphics.

Draw text along a curve

Set Text Attribute

Text effect: transparent

TexturePaint Demo

Text with a Texture

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