Java/2D Graphics GUI/Texture
Содержание
A texture is a bitmap image applied to a shape
<source lang="java"> 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);
}
}
</source>
A texture is a bitmap image applied to the surface in computer graphics.
<source lang="java"> 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);
}
}
</source>
Draw text along a curve
<source lang="java"> 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);
}
}
</source>
Set Text Attribute
<source lang="java"> 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);
}
}
</source>
Text effect: transparent
<source lang="java"> 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();
}
}
</source>
TexturePaint Demo
<source lang="java"> 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();
}
}
</source>
Text with a Texture
<source lang="java"> /*
* 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);
}
}
</source>
