в 17:44, 31 мая 2010

2010-05-31T17:44:26Z

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2010-05-31T15:25:05Z

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== Drawing multi-line text ==



<source lang="java">
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.font.FontRenderContext;
import java.awt.font.LineBreakMeasurer;
import java.awt.font.TextAttribute;
import java.awt.font.TextLayout;
import java.text.AttributedCharacterIterator;
import java.text.AttributedString;
import javax.swing.JFrame;
import javax.swing.UIManager;
public class Main extends JFrame {
public void paint(Graphics g) {
String input = "this is a test.this is a test.this is a test.this is a test.";
AttributedString attributedString = new AttributedString(input);
attributedString.addAttribute(TextAttribute.FONT, (Font) UIManager
.get("Label.font"));
Color color = (Color) UIManager.get("Label.foreground");
attributedString.addAttribute(TextAttribute.FOREGROUND, color);
super.paint(g);
Graphics2D g2d = (Graphics2D) g;
int width = getSize().width;
int x = 10;
int y = 30;
AttributedCharacterIterator characterIterator = attributedString
.getIterator();
FontRenderContext fontRenderContext = g2d.getFontRenderContext();
LineBreakMeasurer measurer = new LineBreakMeasurer(characterIterator,
fontRenderContext);
while (measurer.getPosition() < characterIterator.getEndIndex()) {
TextLayout textLayout = measurer.nextLayout(width);
y += textLayout.getAscent();
textLayout.draw(g2d, x, y);
y += textLayout.getDescent() + textLayout.getLeading();
}
}
public static void main(String args[]) {
JFrame frame = new Main();
frame.setDefaultCloseOperation(EXIT_ON_CLOSE);
frame.setSize(20, 200);
frame.setVisible(true);
}
}</source>



== LineBreakMeasurer Demo ==



<source lang="java">
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.GraphicsEnvironment;
import java.awt.Insets;
import java.awt.font.FontRenderContext;
import java.awt.font.LineBreakMeasurer;
import java.awt.font.TextAttribute;
import java.awt.font.TextLayout;
import java.text.AttributedCharacterIterator;
import java.text.AttributedString;
import javax.swing.JFrame;
public class TextLayoutLineBreakerMeasurer extends JFrame {
String m = "\u05E9\u05DC\u05D5\u05DD \u05E2\u05D5\u05DC\u05DD";
public void paint(Graphics g) {
Graphics2D graphics2D = (Graphics2D) g;
GraphicsEnvironment.getLocalGraphicsEnvironment();
Font font = new Font("LucidaSans", Font.PLAIN, 14);
AttributedString messageAS = new AttributedString(m);
messageAS.addAttribute(TextAttribute.FONT, font);
AttributedCharacterIterator messageIterator = messageAS.getIterator();
FontRenderContext messageFRC = graphics2D.getFontRenderContext();
LineBreakMeasurer messageLBM = new LineBreakMeasurer(messageIterator,
messageFRC);
Insets insets = getInsets();
float wrappingWidth = getSize().width - insets.left - insets.right;
float x = insets.left;
float y = insets.top;
while (messageLBM.getPosition() < messageIterator.getEndIndex()) {
TextLayout textLayout = messageLBM.nextLayout(wrappingWidth);
y += textLayout.getAscent();
textLayout.draw(graphics2D, x, y);
y += textLayout.getDescent() + textLayout.getLeading();
x = insets.left;
}
}
public static void main(String[] args) {
JFrame frame = new TextLayoutLineBreakerMeasurer();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);

frame.setSize(200,200);
frame.setVisible(true);
}
}</source>

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в 17:44, 31 мая 2010

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