Admin: 1 версия

2010-06-01T04:57:43Z

1 версия

в 17:44, 31 мая 2010

2010-05-31T17:44:27Z

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== 14. Creating a Compound Border ==



<source lang="java">
import java.awt.Color;
import javax.swing.BorderFactory;
import javax.swing.JButton;
import javax.swing.border.Border;
import javax.swing.border.LineBorder;
import javax.swing.border.TitledBorder;
public class Main {
public static void main(String[] argv) {
LineBorder border1 = new LineBorder(Color.red);
TitledBorder border2 = new TitledBorder("asdf");
Border newBorder = BorderFactory.createCompoundBorder(border1, border2);
JButton component = new JButton("button");
component.setBorder(newBorder);
}
}</source>



== 14. Creating and Setting a Lowered BevelBorder from BorderFactory ==



<source lang="java">
import javax.swing.BorderFactory;
import javax.swing.JLabel;
import javax.swing.border.BevelBorder;
public class Main {
public static void main(String[] argv) {
BevelBorder loweredBevelBorder = (BevelBorder)BorderFactory.createLoweredBevelBorder();
JLabel component = new JLabel("label");
component.setBorder(loweredBevelBorder);
}
}</source>



== 14. Creating and Setting a Raised BevelBorder from BorderFactory ==



<source lang="java">
import javax.swing.BorderFactory;
import javax.swing.JLabel;
import javax.swing.border.BevelBorder;
public class Main {
public static void main(String[] argv) {

BevelBorder raisedBevelBorder = (BevelBorder)BorderFactory.createRaisedBevelBorder();
JLabel component = new JLabel("label");
component.setBorder(raisedBevelBorder);
}
}</source>



== 14. Creating Your Own Borders ==

<OL><LI>implements the Border interface</LI><LI>extend the AbstractBorder class</LI></OL>
<p>AbstractBorder class is the better, since certain Swing classes has optimizations for the AbstractBorder-specific methods.</p>

== 14. implements Border interface ==



<source lang="java">
import java.awt.Color;
import java.awt.ruponent;
import java.awt.Graphics;
import java.awt.Insets;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.border.Border;
class SimpleBorder implements Border {
int top;
int left;
int bottom;
int right;
Color color = null;
public SimpleBorder() {
this.top = 2;
this.left = 4;
this.bottom = 8;
this.right = 10;
this.color = Color.RED;
}
public void paintBorder(Component c,
Graphics g,
int x, int y,
int width, int height) {

Insets insets = getBorderInsets(c);
if (color != null)
g.setColor(color);

g.fill3DRect(0,
0,
width-insets.right,
insets.top,
true);
g.fill3DRect(0, insets.top, insets.left,
height-insets.top, true);
g.fill3DRect(insets.left, height-insets.bottom,
width-insets.left, insets.bottom, true);
g.fill3DRect(width-insets.right, 0, insets.right,
height-insets.bottom, true);
}
public Insets getBorderInsets(Component c) {
return new Insets(top, left, bottom, right);
}
public boolean isBorderOpaque() {
return true;
}
}
public class CustomBorderDemo {
public static void main(String[] a) {
JFrame frame = new JFrame();
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JButton button = new JButton("Aaaaaaaaaaa");
button.setBorder(new SimpleBorder());
frame.add(button);
frame.pack();
frame.setVisible(true);
}

}</source>



== 14. Subclass AbstractBorder ==



<source lang="java">
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.ruponent;
import java.awt.Container;
import java.awt.Graphics;
import java.awt.Insets;
import javax.swing.AbstractButton;
import javax.swing.ButtonModel;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.border.AbstractBorder;
import javax.swing.border.Border;
public class RedGreenBorder extends AbstractBorder {
public boolean isBorderOpaque() {
return true;
}
public Insets getBorderInsets(Component c) {
return new Insets(3, 3, 3, 3);
}
public void paintBorder(Component c, Graphics g, int x, int y, int width, int height) {
Insets insets = getBorderInsets(c);
Color horizontalColor;
if (c.isEnabled()) {
boolean pressed = false;
if (c instanceof AbstractButton) {
ButtonModel model = ((AbstractButton) c).getModel();
pressed = model.isPressed();
}
if (pressed) {
horizontalColor = Color.RED;
} else {
horizontalColor = Color.GREEN;
}
} else {
horizontalColor = Color.LIGHT_GRAY;
}
g.setColor(horizontalColor);
g.fillRect(0, 0, width, insets.top);
}
public static void main(String args[]) {
JFrame frame = new JFrame("My Border");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Border border = new RedGreenBorder();
JButton helloButton = new JButton("Hello");
helloButton.setBorder(border);
JButton braveButton = new JButton("Brave New");
braveButton.setBorder(border);
braveButton.setEnabled(false);
JButton worldButton = new JButton("World");
worldButton.setBorder(border);
Container contentPane = frame.getContentPane();
contentPane.add(helloButton, BorderLayout.NORTH);
contentPane.add(braveButton, BorderLayout.CENTER);
contentPane.add(worldButton, BorderLayout.SOUTH);
frame.setSize(300, 100);
frame.setVisible(true);
}
}</source>

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Admin: 1 версия

в 17:44, 31 мая 2010