в 17:43, 31 мая 2010

2010-05-31T17:43:48Z

Admin: 1 версия

2010-05-31T14:19:29Z

1 версия

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== JColorChooser: addChooserPanel(AbstractColorChooserPanel p) ==



<source lang="java">

import java.awt.Color;
import java.awt.ruponent;
import java.awt.Graphics;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ItemEvent;
import java.awt.event.ItemListener;
import javax.swing.Icon;
import javax.swing.JColorChooser;
import javax.swing.JComboBox;
import javax.swing.JDialog;
import javax.swing.colorchooser.AbstractColorChooserPanel;
import javax.swing.colorchooser.ColorSelectionModel;
public class MainClass {
public static void main(String[] a) {
final JColorChooser colorChooser = new JColorChooser();
SystemColorChooserPanel newChooser = new SystemColorChooserPanel();
colorChooser.addChooserPanel(newChooser);
ActionListener okActionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
System.out.println(colorChooser.getColor());
}
};
ActionListener cancelActionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
System.out.println("Cancel");
}
};
final JDialog dialog = JColorChooser.createDialog(null, "Change Button Background", true,
colorChooser, okActionListener, cancelActionListener);
dialog.setVisible(true);
}
}
class SystemColorChooserPanel extends AbstractColorChooserPanel implements ItemListener {
JComboBox comboBox;
String labels[] = { "BLACK", "BLUE", "CYAN"};
Color colors[] = { Color.BLACK, Color.BLUE, Color.CYAN};
private void setColor(Color newColor) {
int position = findColorPosition(newColor);
comboBox.setSelectedIndex(position);
}
private int findColorLabel(Object label) {
String stringLabel = label.toString();
int position = -1;
for (int i = 0, n = labels.length; i < n; i++) {
if (stringLabel.equals(labels[i])) {
position = i;
break;
}
}
return position;
}
private int findColorPosition(Color color) {
int position = colors.length - 1;
int colorRGB = color.getRGB();
for (int i = 0, n = colors.length; i < n; i++) {
if ((colors[i] != null) && (colorRGB == colors[i].getRGB())) {
position = i;
break;
}
}
return position;
}
public void itemStateChanged(ItemEvent itemEvent) {
int state = itemEvent.getStateChange();
if (state == ItemEvent.SELECTED) {
int position = findColorLabel(itemEvent.getItem());
if ((position != -1) && (position != labels.length - 1)) {
ColorSelectionModel selectionModel = getColorSelectionModel();
selectionModel.setSelectedColor(colors[position]);
}
}
}
public String getDisplayName() {
return "SystemColor";
}
public Icon getSmallDisplayIcon() {
return new MyIcon(Color.BLUE);
}
public Icon getLargeDisplayIcon() {
return new MyIcon(Color.GREEN);
}
protected void buildChooser() {
comboBox = new JComboBox(labels);
comboBox.addItemListener(this);
add(comboBox);
}
public void updateChooser() {
Color color = getColorFromModel();
setColor(color);
}
}
class MyIcon implements Icon {
Color myColor;
public MyIcon(Color myColor) {
this.myColor = myColor;
}
public int getIconWidth() {
return 16;
}
public int getIconHeight() {
return 16;
}
public void paintIcon(Component c, Graphics g, int x, int y) {
g.setColor(myColor);
g.drawRect(0, 0, 16, 16);
}
}

</source>



== JColorChooser: createDialog(Component c, String t, boolean m, JColorChooser c, ActionListener ok, ActionListener cancel) ==



<source lang="java">

import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;
import javax.swing.JColorChooser;
import javax.swing.JDialog;
import javax.swing.JLabel;
public class MainClass {
public static void main(String[] a) {
final JColorChooser colorChooser = new JColorChooser();
final JLabel previewLabel = new JLabel("I Love Swing", JLabel.CENTER);
previewLabel.setFont(new Font("Serif", Font.BOLD | Font.ITALIC, 48));
previewLabel.setSize(previewLabel.getPreferredSize());
previewLabel.setBorder(BorderFactory.createEmptyBorder(0, 0, 1, 0));
colorChooser.setPreviewPanel(previewLabel);
ActionListener okActionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
System.out.println("OK Button");
System.out.println(colorChooser.getColor());
}
};
ActionListener cancelActionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
System.out.println("Cancel Button");
}
};
final JDialog dialog = JColorChooser.createDialog(null, "Change Button Background", true,
colorChooser, okActionListener, cancelActionListener);
dialog.setVisible(true);
}
}

</source>



== JColorChooser: getSelectionModel() ==



<source lang="java">

import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Font;
import javax.swing.BorderFactory;
import javax.swing.JColorChooser;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.colorchooser.ColorSelectionModel;
import javax.swing.event.ChangeEvent;
import javax.swing.event.ChangeListener;
public class MainClass {
public static void main(String[] a) {
JFrame frame = new JFrame("JColorChooser Popup");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final JLabel label = new JLabel("www.jexp.ru", JLabel.CENTER);
label.setFont(new Font("Serif", Font.BOLD | Font.ITALIC, 48));
frame.add(label, BorderLayout.SOUTH);
final JColorChooser colorChooser = new JColorChooser(label.getBackground());
colorChooser.setBorder(BorderFactory.createTitledBorder("Pick Color for jexp.ru"));
ColorSelectionModel model = colorChooser.getSelectionModel();
ChangeListener changeListener = new ChangeListener() {
public void stateChanged(ChangeEvent changeEvent) {
Color newForegroundColor = colorChooser.getColor();
label.setForeground(newForegroundColor);
}
};
model.addChangeListener(changeListener);
frame.add(colorChooser, BorderLayout.CENTER);
frame.pack();
frame.setVisible(true);
}
}

</source>



== JColorChooser: setDragEnabled(boolean b) ==



<source lang="java">

import java.awt.BorderLayout;
import javax.swing.JColorChooser;
import javax.swing.JFrame;
public class MainClass {
public static void main(final String args[]) {
JFrame frame = new JFrame("Double Color Choosers");
frame.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JColorChooser left = new JColorChooser();
left.setDragEnabled(true);
frame.add(left, BorderLayout.WEST);
JColorChooser right = new JColorChooser();
right.setDragEnabled(true);
frame.add(right, BorderLayout.EAST);
frame.pack();
frame.setVisible(true);
}
}

</source>



== JColorChooser: setPreviewPanel(JComponent preview) ==



<source lang="java">

import java.awt.Font;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.BorderFactory;
import javax.swing.JColorChooser;
import javax.swing.JDialog;
import javax.swing.JLabel;
public class MainClass {
public static void main(String[] a) {
final JColorChooser colorChooser = new JColorChooser();
final JLabel previewLabel = new JLabel("I Love Swing", JLabel.CENTER);
previewLabel.setFont(new Font("Serif", Font.BOLD | Font.ITALIC, 48));
previewLabel.setSize(previewLabel.getPreferredSize());
previewLabel.setBorder(BorderFactory.createEmptyBorder(0, 0, 1, 0));
colorChooser.setPreviewPanel(previewLabel);
ActionListener okActionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
System.out.println("OK Button");
System.out.println(colorChooser.getColor());
}
};
ActionListener cancelActionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
System.out.println("Cancel Button");
}
};
final JDialog dialog = JColorChooser.createDialog(null, "Change Button Background", true,
colorChooser, okActionListener, cancelActionListener);
dialog.setVisible(true);
}
}

</source>



== JColorChooser: showDialog(Component component, String title, Color initialColor) ==



<source lang="java">
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import javax.swing.JButton;
import javax.swing.JColorChooser;
import javax.swing.JFrame;
public class MainClass {
public static void main(String args[]) {
JFrame f = new JFrame("JColorChooser Sample");
f.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
final JButton button = new JButton("Pick to Change Background");
ActionListener actionListener = new ActionListener() {
public void actionPerformed(ActionEvent actionEvent) {
Color initialBackground = button.getBackground();
Color background = JColorChooser.showDialog(null,
"JColorChooser Sample", initialBackground);
if (background != null) {
button.setBackground(background);
}
}
};
button.addActionListener(actionListener);
f.add(button, BorderLayout.CENTER);
f.setSize(300, 200);
f.setVisible(true);
}
}

</source>

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в 17:43, 31 мая 2010

Admin: 1 версия