Java/2D Graphics GUI/Text

Содержание

1 Create a shadowed text
2 Display some lyrics on the panel.
3 Display underlined text
4 Display unicode text
5 Display vertical text
6 Draw 2D Text
7 Drawing Rotated Text
8 Drawing Simple Text
9 Draw string rotated clockwise 45 degrees
10 Draw string rotated counter-clockwise 45 degrees
11 drawString(): specify the position of the text on the window area
12 Generate Shape From Text
13 Getting the Dimensions of Text
14 Have a Label with underlined text
15 Rotate a line of character (String)
16 Use AffineTransform to draw vertical text

Create a shadowed text

   
import java.awt.Color;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.font.TextLayout;
import java.io.IOException;
import javax.swing.JFrame;
import javax.swing.JLabel;
public class ShadowText extends JLabel {
  public void paint(Graphics g) {
    String text = "Hello World";
    int x = 10;
    int y = 100;
    Font font = new Font("Georgia", Font.ITALIC, 50);
    Graphics2D g1 = (Graphics2D) g;
    TextLayout textLayout = new TextLayout(text, font, g1.getFontRenderContext());
    g1.setPaint(new Color(150, 150, 150));
    textLayout.draw(g1, x + 3, y + 3);
    g1.setPaint(Color.BLACK);
    textLayout.draw(g1, x, y);
  }
  public static void main(String[] args) throws IOException {
    JFrame f = new JFrame();
    f.add(new ShadowText());
    f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    f.setSize(450, 150);
    f.setVisible(true);
  }
}

Display some lyrics on the panel.

   
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class PrintLineByLine extends JPanel {
  public void paintComponent(Graphics g) {
    super.paintComponent(g);
    Graphics2D g2d = (Graphics2D) g;
    RenderingHints rh = new RenderingHints(RenderingHints.KEY_ANTIALIASING,
        RenderingHints.VALUE_ANTIALIAS_ON);
    rh.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g2d.setRenderingHints(rh);
    g2d.setFont(new Font("Purisa", Font.PLAIN, 13));
    g2d.drawString("Line 1", 20, 30);
    g2d.drawString("Line 2", 20, 60);
    g2d.drawString("Line 3", 20, 90);
    g2d.drawString("Line 4", 20, 120);
    g2d.drawString("Line 5", 20, 150);
    g2d.drawString("Line 6", 20, 180);
  }
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.add(new PrintLineByLine());
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setSize(420, 250);
    frame.setVisible(true);
  }
}

Display underlined text

   
import java.awt.Graphics;
import javax.swing.JPanel;
public class Main extends JPanel{
  String s = "Underlined text";
  int x = 10;
  int y = 10;
  public void init() {
  }
  public void paint(Graphics g) {
    g.drawString(s, x, y);
    g.drawLine(x, y + 2, x + getFontMetrics(getFont()).stringWidth(s), y + 2);
  }
}

Display unicode text

   
import java.awt.Graphics;
import java.awt.Graphics2D;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class RussiaUnicode extends JPanel {
  public void paint(Graphics g) {
    super.paintComponent(g);
    Graphics2D g2d = (Graphics2D) g;
    g2d.drawString("\u0424\u0451\u0434\u043e\u0440.", 20, 30);
  }
  public static void main(String[] args) {
    JFrame frame = new JFrame("Unicode");
    frame.add(new RussiaUnicode());
    frame.setSize(520, 220);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setVisible(true);
  }
}

Display vertical text

   
import java.awt.Graphics;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Main extends JPanel{
  String s = "Vertical text";
  int v;
  public void paint(Graphics g) {
    v = g.getFontMetrics(getFont()).getHeight() + 1;
    int j = 0;
    int k = s.length();
    while (j < k + 1) {
      if (j == k)
        g.drawString(s.substring(j), 10, 10 + (j * v));
      else
        g.drawString(s.substring(j, j + 1), 10, 10 + (j * v));
      j++;
    }
  }
  public static void main(String[] a){
    JFrame f = new JFrame();
    f.add(new Main());
    f.setSize(300,300);
    f.setVisible(true);
  }
}

Draw 2D Text

   
import java.awt.Color;
import java.awt.Dimension;
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.font.FontRenderContext;
import java.awt.font.TextLayout;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Main extends JPanel {
  public Main() {
    setBackground(Color.white);
  }
  public void paint(Graphics g) {
    Graphics2D g2D;
    g2D = (Graphics2D) g;
    FontRenderContext frc = g2D.getFontRenderContext();
    Font font1 = new Font("Courier", Font.BOLD, 24);
    String str1 = new String("Java");
    TextLayout tl = new TextLayout(str1, font1, frc);
    g2D.setColor(Color.gray);
    tl.draw(g2D, 70, 150);
  }
  public static void main(String s[]) {
    JFrame frame1 = new JFrame("2D Text");
    frame1.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame1.getContentPane().add("Center", new Main());
    frame1.pack();
    frame1.setSize(new Dimension(500, 300));
    frame1.setVisible(true);
  }
}

Drawing Rotated Text

   
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import javax.swing.JComponent;
import javax.swing.JFrame;
public class BasicDraw {
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.add(new MyComponent());
    frame.setSize(300, 300);
    frame.setVisible(true);
  }
}
class MyComponent extends JComponent {
  public void paint(Graphics g) {
    Graphics2D g2d = (Graphics2D)g;
    
    g2d.drawString("aString", 100, 100);
    AffineTransform at = new AffineTransform();
    at.setToRotation(Math.PI / 4.0);
    g2d.setTransform(at);
    g2d.drawString("aString", 100, 100);
  }
}

Drawing Simple Text

   
import java.awt.Font;
import java.awt.FontMetrics;
import java.awt.Graphics;
import javax.swing.JComponent;
import javax.swing.JFrame;
public class BasicDraw {
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.add(new MyComponent());
    frame.setSize(300, 300);
    frame.setVisible(true);
  }
}
class MyComponent extends JComponent {
  public void paint(Graphics g) {
    Font font = new Font("Serif", Font.PLAIN, 12);
    g.setFont(font);
    g.drawString("a String", 10, 10);
    FontMetrics fontMetrics = g.getFontMetrics();
    g.drawString("aString", 10, 10 + fontMetrics.getAscent());
  }
}

Draw string rotated clockwise 45 degrees

   
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import javax.swing.JComponent;
import javax.swing.JFrame;
public class BasicDraw {
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.add(new MyComponent());
    frame.setSize(300, 300);
    frame.setVisible(true);
  }
}
class MyComponent extends JComponent {
  public void paint(Graphics g) {
    Graphics2D g2d = (Graphics2D)g;
    
    g2d.drawString("aString", 100, 100);
    AffineTransform at = new AffineTransform();
    at.setToRotation(Math.PI / 4.0);
    g2d.setTransform(at);
    g2d.drawString("aString", 100, 100);
  }
}

Draw string rotated counter-clockwise 45 degrees

   
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import javax.swing.JComponent;
import javax.swing.JFrame;
public class BasicDraw {
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.add(new MyComponent());
    frame.setSize(300, 300);
    frame.setVisible(true);
  }
}
class MyComponent extends JComponent {
  public void paint(Graphics g) {
    Graphics2D g2d = (Graphics2D)g;
    
    AffineTransform at = new AffineTransform();
    at.setToRotation(Math.PI/4.0);
    g2d.setTransform(at);
    g2d.drawString("aString", 200, 100);
  }
}

drawString(): specify the position of the text on the window area

   
import java.awt.Font;
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Text extends JPanel {
  public void paintComponent(Graphics g) {
    super.paintComponent(g);
    Graphics2D g2d = (Graphics2D) g;
    RenderingHints rh = new RenderingHints(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    rh.put(RenderingHints.KEY_RENDERING, RenderingHints.VALUE_RENDER_QUALITY);
    g2d.setRenderingHints(rh);
    Font font = new Font("New Roma", Font.BOLD, 40);
    g2d.setFont(font);
    g2d.drawString("text", 20, 30);
  }
  public static void main(String[] args) {
    Text text = new Text();
    JFrame frame = new JFrame("Sonnet 55");
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.add(text);
    frame.setSize(500, 470);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
  }
}

Generate Shape From Text

 
import java.awt.Font;
import java.awt.Graphics2D;
import java.awt.Polygon;
import java.awt.Shape;
import java.awt.font.GlyphVector;
import java.awt.geom.AffineTransform;
import java.awt.geom.Ellipse2D;
import java.awt.geom.GeneralPath;
import java.awt.geom.Point2D;
import java.awt.geom.Rectangle2D;
import java.awt.image.BufferedImage;
/*
 * $Id: ShapeUtils.java,v 1.4 2008/10/14 22:31:46 rah003 Exp $
 *
 * Copyright 2006 Sun Microsystems, Inc., 4150 Network Circle,
 * Santa Clara, California 95054, U.S.A. All rights reserved.
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Lesser General Public
 * License as published by the Free Software Foundation; either
 * version 2.1 of the License, or (at your option) any later version.
 * 
 * This library is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
 * Lesser General Public License for more details.
 * 
 * You should have received a copy of the GNU Lesser General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 51 Franklin St, Fifth Floor, Boston, MA  02110-1301  USA
 */
public class Utils {
  public static Shape generateShapeFromText(Font font, char ch) {
    return generateShapeFromText(font, String.valueOf(ch));
  }
  public static Shape generateShapeFromText(Font font, String string) {
    BufferedImage img = new BufferedImage(100, 100, BufferedImage.TYPE_INT_ARGB);
    Graphics2D g2 = img.createGraphics();
    try {
      GlyphVector vect = font.createGlyphVector(g2.getFontRenderContext(), string);
      Shape shape = vect.getOutline(0f, (float) -vect.getVisualBounds().getY());
      return shape;
    } finally {
      g2.dispose();
    }
  }
}

Getting the Dimensions of Text

   
import java.awt.FontMetrics;
import java.awt.Graphics;
import java.awt.Graphics2D;
import javax.swing.JComponent;
import javax.swing.JFrame;
public class BasicDraw {
  public static void main(String[] args) {
    JFrame frame = new JFrame();
    frame.add(new MyComponent());
    frame.setSize(300, 300);
    frame.setVisible(true);
  }
}
class MyComponent extends JComponent {
  public void paint(Graphics g) {
    Graphics2D g2d = (Graphics2D) g;
    FontMetrics fontMetrics = g2d.getFontMetrics();
    int width = fontMetrics.stringWidth("aString");
    int height = fontMetrics.getHeight();
    System.out.println(width);
    System.out.println(height);
  }
}

Have a Label with underlined text

   
import java.awt.Graphics;
import java.awt.Rectangle;
import javax.swing.JLabel;
class UnderlinedLabel extends JLabel {
  public UnderlinedLabel() {
    this("");
  }
  public UnderlinedLabel(String text) {
    super(text);
  }
  public void paint(Graphics g) {
    Rectangle r;
    super.paint(g);
    r = g.getClipBounds();
    g.drawLine(0, r.height - getFontMetrics(getFont()).getDescent(), getFontMetrics(getFont())
        .stringWidth(getText()), r.height - getFontMetrics(getFont()).getDescent());
  }
}

Rotate a line of character (String)

   
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 RotatedText extends JPanel {
  public void paint(Graphics g) {
    Graphics2D g2d = (Graphics2D) g;
    g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON);
    String s = "111111111111111111111111111111";
    Font font = new Font("Courier", Font.PLAIN, 12);
    g2d.translate(20, 20);
    FontRenderContext frc = g2d.getFontRenderContext();
    GlyphVector gv = font.createGlyphVector(frc, s);
    int length = gv.getNumGlyphs();
    for (int i = 0; i < length; i++) {
      Point2D p = gv.getGlyphPosition(i);
      AffineTransform at = AffineTransform.getTranslateInstance(p.getX(), p.getY());
      at.rotate((double) i / (double) (length - 1) * Math.PI / 3);
      Shape glyph = gv.getGlyphOutline(i);
      Shape transformedGlyph = at.createTransformedShape(glyph);
      g2d.fill(transformedGlyph);
    }
  }
  public static void main(String[] args) {
    JFrame frame = new JFrame("Rotated text");
    frame.add(new RotatedText());
    frame.setSize(400, 300);
    frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
    frame.setLocationRelativeTo(null);
    frame.setVisible(true);
  }
}

Use AffineTransform to draw vertical text

   
import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.geom.AffineTransform;
import javax.swing.JFrame;
import javax.swing.JPanel;
public class Main extends JPanel {
  public void paint(Graphics g) {
    Graphics2D g2d = (Graphics2D) g;
    AffineTransform at = new AffineTransform();
    at.setToRotation(-Math.PI / 2.0, getWidth() / 2.0, getHeight() / 2.0);
    g2d.setTransform(at);
    g2d.drawString("Vertical text", 10, 10);
  }
  public static void main(String[] a) {
    JFrame f = new JFrame();
    f.add(new Main());
    f.setSize(300, 300);
    f.setVisible(true);
  }
}

Java/2D Graphics GUI/Text

Содержание

Create a shadowed text

Display some lyrics on the panel.

Display underlined text

Display unicode text

Display vertical text

Draw 2D Text

Drawing Rotated Text

Drawing Simple Text

Draw string rotated clockwise 45 degrees

Draw string rotated counter-clockwise 45 degrees

drawString(): specify the position of the text on the window area

Generate Shape From Text

Getting the Dimensions of Text

Have a Label with underlined text

Rotate a line of character (String)

Use AffineTransform to draw vertical text

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