Java Tutorial/Swing/Accessible — различия между версиями
Admin (обсуждение | вклад) м (1 версия) |
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Текущая версия на 15:31, 31 мая 2010
Содержание
- 1 14. Associating a Label with a Component
- 2 14. implement Accessible to make your object accessible
- 3 14. Setting a Description for Image Icons
- 4 14. Setting a Keyboard Accelerator for a Menu Item
- 5 14. Setting a Mnemonic for a Menu for Accessible
- 6 14. Setting a Mnemonic for Buttons for Accessible
- 7 14. Setting an Accessible Name for an Image Button
14. Associating a Label with a Component
import javax.swing.JLabel;
import javax.swing.JTextField;
public class Main {
public static void main(String[] argv) throws Exception {
JTextField component = new JTextField();
JLabel label = new JLabel("Name:");
label.setDisplayedMnemonic("N");
label.setLabelFor(component);
}
}
14. implement Accessible to make your object accessible
import java.awt.IllegalComponentStateException;
import java.util.Locale;
import javax.accessibility.Accessible;
import javax.accessibility.AccessibleContext;
import javax.accessibility.AccessibleRole;
import javax.accessibility.AccessibleStateSet;
public class Main implements Accessible {
public AccessibleContext getAccessibleContext() {
return new AccessibleContext() {
@Override
public AccessibleRole getAccessibleRole() {
return null;
}
@Override
public AccessibleStateSet getAccessibleStateSet() {
return null;
}
@Override
public int getAccessibleIndexInParent() {
return 0;
}
@Override
public int getAccessibleChildrenCount() {
return 0;
}
@Override
public Accessible getAccessibleChild(int i) {
return null;
}
@Override
public Locale getLocale() throws IllegalComponentStateException {
return null;
}
};
}
}
14. Setting a Description for Image Icons
import javax.swing.ImageIcon;
public class Main {
public static void main(String[] argv) throws Exception {
ImageIcon icon = new ImageIcon("image.gif");
icon.setDescription("Description of Image");
}
}
14. Setting a Keyboard Accelerator for a Menu Item
import java.awt.event.KeyEvent;
import javax.swing.JMenuItem;
import javax.swing.KeyStroke;
public class Main {
public static void main(String[] argv) throws Exception {
JMenuItem item = new JMenuItem("Item");
item.setAccelerator(KeyStroke.getKeyStroke(KeyEvent.VK_I, KeyEvent.SHIFT_MASK));
}
}
14. Setting a Mnemonic for a Menu for Accessible
import javax.swing.JMenu;
public class Main {
public static void main(String[] argv) throws Exception {
JMenu menu = new JMenu("Menu");
menu.setMnemonic("M");
}
}
14. Setting a Mnemonic for Buttons for Accessible
import javax.swing.JButton;
import javax.swing.JCheckBox;
public class Main {
public static void main(String[] argv) throws Exception {
JButton button = new JButton("Button");
button.setMnemonic("B");
JCheckBox checkBox = new JCheckBox("CheckBox");
checkBox.setMnemonic("C");
}
}
14. Setting an Accessible Name for an Image Button
import javax.swing.ImageIcon;
import javax.swing.JButton;
public class Main {
public static void main(String[] argv) throws Exception {
JButton button = new JButton(new ImageIcon("image.gif"));
button.setToolTipText("Button Name");
button.getAccessibleContext().setAccessibleName("Button Name");
}
}