Java by API/javax.accessibility/AccessibleContext
Содержание
- 1 AccessibleAction: getAccessibleActionCount()
- 2 AccessibleContext: getAccessibleAction()
- 3 AccessibleContext: getAccessibleChildrenCount()
- 4 AccessibleContext: getAccessibleDescription()
- 5 AccessibleContext: getAccessibleName()
- 6 AccessibleContext: getAccessibleRelationSet()
- 7 AccessibleContext: getAccessibleSelection()
- 8 AccessibleContext: getAccessibleTable()
- 9 AccessibleContext: getAccessibleText()
- 10 AccessibleContext: getAccessibleValue()
- 11 AccessibleContext: setAccessibleDescription(String s)
- 12 AccessibleContext: setAccessibleName(String s)
AccessibleAction: getAccessibleActionCount()
<source lang="java">
import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.event.ActionEvent; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.accessibility.AccessibleAction; import javax.accessibility.AccessibleContext; import javax.swing.AbstractAction; import javax.swing.Action; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JPanel; import javax.swing.JToolBar; public class MainClass extends JFrame {
MainClass(String title) {
super(title);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JToolBar toolBar = new JToolBar();
Action a = new AbstractAction("Demo") {
public void actionPerformed(ActionEvent e) {
System.out.println("Action taken.");
}
};
JButton b = toolBar.add(a);
b.setText("Demo Button");
b.setToolTipText("Press me to take action.");
JMenu mainMenu = new JMenu("Menu");
JMenuItem mi = mainMenu.add(a);
mi.getAccessibleContext().setAccessibleName("Menu item");
JMenuBar mb = new JMenuBar();
mb.add(mainMenu);
setJMenuBar(mb);
JPanel pane = new JPanel();
pane.setLayout(new BorderLayout());
pane.setPreferredSize(new Dimension(200, 100));
pane.add(toolBar, BorderLayout.NORTH);
setContentPane(pane);
pack();
setVisible(true);
}
public static void main(String[] args) {
MainClass ad2;
ad2 = new MainClass("Accessibility Demo2");
ad2.dumpActionInfo(ad2.getAccessibleContext());
}
void dumpActionInfo(AccessibleContext ac) {
AccessibleAction aa = ac.getAccessibleAction();
if (aa != null) {
String s = ac.getAccessibleName();
System.out.println(s);
int count = aa.getAccessibleActionCount();
for (int i = 0; i < count; i++) {
s = aa.getAccessibleActionDescription(i);
System.out.println("Description = " + s);
}
}
int nChildren = ac.getAccessibleChildrenCount();
for (int i = 0; i < nChildren; i++)
dumpActionInfo(ac.getAccessibleChild(i).getAccessibleContext());
}
}
</source>
AccessibleContext: getAccessibleAction()
<source lang="java">
import java.awt.BorderLayout; import java.awt.Dimension; import java.awt.event.ActionEvent; import java.awt.event.WindowAdapter; import java.awt.event.WindowEvent; import javax.accessibility.AccessibleAction; import javax.accessibility.AccessibleContext; import javax.swing.AbstractAction; import javax.swing.Action; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JMenu; import javax.swing.JMenuBar; import javax.swing.JMenuItem; import javax.swing.JPanel; import javax.swing.JToolBar; public class MainClass extends JFrame {
MainClass(String title) {
super(title);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JToolBar toolBar = new JToolBar();
Action a = new AbstractAction("Demo") {
public void actionPerformed(ActionEvent e) {
System.out.println("Action taken.");
}
};
JButton b = toolBar.add(a);
b.setText("Demo Button");
b.setToolTipText("Press me to take action.");
JMenu mainMenu = new JMenu("Menu");
JMenuItem mi = mainMenu.add(a);
mi.getAccessibleContext().setAccessibleName("Menu item");
JMenuBar mb = new JMenuBar();
mb.add(mainMenu);
setJMenuBar(mb);
JPanel pane = new JPanel();
pane.setLayout(new BorderLayout());
pane.setPreferredSize(new Dimension(200, 100));
pane.add(toolBar, BorderLayout.NORTH);
setContentPane(pane);
pack();
setVisible(true);
}
public static void main(String[] args) {
MainClass ad2;
ad2 = new MainClass("Accessibility Demo2");
ad2.dumpActionInfo(ad2.getAccessibleContext());
}
void dumpActionInfo(AccessibleContext ac) {
AccessibleAction aa = ac.getAccessibleAction();
if (aa != null) {
String s = ac.getAccessibleName();
System.out.println(s);
int count = aa.getAccessibleActionCount();
for (int i = 0; i < count; i++) {
s = aa.getAccessibleActionDescription(i);
System.out.println("Description = " + s);
}
}
int nChildren = ac.getAccessibleChildrenCount();
for (int i = 0; i < nChildren; i++)
dumpActionInfo(ac.getAccessibleChild(i).getAccessibleContext());
}
}
</source>
AccessibleContext: getAccessibleChildrenCount()
<source lang="java">
import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.accessibility.AccessibleContext; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass extends JFrame implements ActionListener {
JButton jb;
MainClass(String title) {
super(title);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
AccessibleContext ac = getAccessibleContext();
ac.setAccessibleDescription("Accessibility Demo1 description.");
ac = getRootPane().getAccessibleContext();
ac.setAccessibleName("Root pane");
ac.setAccessibleDescription("Root pane description");
ac = getGlassPane().getAccessibleContext();
ac.setAccessibleName("Glass pane");
ac.setAccessibleDescription("Glass pane description");
ac = getLayeredPane().getAccessibleContext();
ac.setAccessibleName("Layered pane");
ac.setAccessibleDescription("Layered pane description");
ac = getContentPane().getAccessibleContext();
ac.setAccessibleName("Content pane");
ac.setAccessibleDescription("Content pane description");
JPanel p = new JPanel();
ac = p.getAccessibleContext();
ac.setAccessibleName("Panel");
ac.setAccessibleDescription("Panel description");
jb = new JButton("Press Me");
jb.addActionListener(this);
jb.setToolTipText("Press me for accessibility information.");
p.add(jb);
getContentPane().add(p);
setSize(200, 75);
setVisible(true);
}
public void actionPerformed(ActionEvent e) {
dumpInfo(getAccessibleContext());
}
void dumpInfo(AccessibleContext ac) {
System.out.println("Name = " + ac.getAccessibleName());
System.out.println("Description = " + ac.getAccessibleDescription());
int nChildren = ac.getAccessibleChildrenCount();
for (int i = 0; i < nChildren; i++)
dumpInfo(ac.getAccessibleChild(i).getAccessibleContext());
}
public static void main(String[] args) {
new MainClass("Accessibility Demo1");
}
}
</source>
AccessibleContext: getAccessibleDescription()
<source lang="java">
import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.accessibility.AccessibleContext; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass extends JFrame implements ActionListener {
JButton jb;
MainClass(String title) {
super(title);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
AccessibleContext ac = getAccessibleContext();
ac.setAccessibleDescription("Accessibility Demo1 description.");
ac = getRootPane().getAccessibleContext();
ac.setAccessibleName("Root pane");
ac.setAccessibleDescription("Root pane description");
ac = getGlassPane().getAccessibleContext();
ac.setAccessibleName("Glass pane");
ac.setAccessibleDescription("Glass pane description");
ac = getLayeredPane().getAccessibleContext();
ac.setAccessibleName("Layered pane");
ac.setAccessibleDescription("Layered pane description");
ac = getContentPane().getAccessibleContext();
ac.setAccessibleName("Content pane");
ac.setAccessibleDescription("Content pane description");
JPanel p = new JPanel();
ac = p.getAccessibleContext();
ac.setAccessibleName("Panel");
ac.setAccessibleDescription("Panel description");
jb = new JButton("Press Me");
jb.addActionListener(this);
jb.setToolTipText("Press me for accessibility information.");
p.add(jb);
getContentPane().add(p);
setSize(200, 75);
setVisible(true);
}
public void actionPerformed(ActionEvent e) {
dumpInfo(getAccessibleContext());
}
void dumpInfo(AccessibleContext ac) {
System.out.println("Name = " + ac.getAccessibleName());
System.out.println("Description = " + ac.getAccessibleDescription());
int nChildren = ac.getAccessibleChildrenCount();
for (int i = 0; i < nChildren; i++)
dumpInfo(ac.getAccessibleChild(i).getAccessibleContext());
}
public static void main(String[] args) {
new MainClass("Accessibility Demo1");
}
}
</source>
AccessibleContext: getAccessibleName()
<source lang="java">
import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.accessibility.AccessibleContext; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass extends JFrame implements ActionListener {
JButton jb;
MainClass(String title) {
super(title);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
AccessibleContext ac = getAccessibleContext();
ac.setAccessibleDescription("Accessibility Demo1 description.");
ac = getRootPane().getAccessibleContext();
ac.setAccessibleName("Root pane");
ac.setAccessibleDescription("Root pane description");
ac = getGlassPane().getAccessibleContext();
ac.setAccessibleName("Glass pane");
ac.setAccessibleDescription("Glass pane description");
ac = getLayeredPane().getAccessibleContext();
ac.setAccessibleName("Layered pane");
ac.setAccessibleDescription("Layered pane description");
ac = getContentPane().getAccessibleContext();
ac.setAccessibleName("Content pane");
ac.setAccessibleDescription("Content pane description");
JPanel p = new JPanel();
ac = p.getAccessibleContext();
ac.setAccessibleName("Panel");
ac.setAccessibleDescription("Panel description");
jb = new JButton("Press Me");
jb.addActionListener(this);
jb.setToolTipText("Press me for accessibility information.");
p.add(jb);
getContentPane().add(p);
setSize(200, 75);
setVisible(true);
}
public void actionPerformed(ActionEvent e) {
dumpInfo(getAccessibleContext());
}
void dumpInfo(AccessibleContext ac) {
System.out.println("Name = " + ac.getAccessibleName());
System.out.println("Description = " + ac.getAccessibleDescription());
int nChildren = ac.getAccessibleChildrenCount();
for (int i = 0; i < nChildren; i++)
dumpInfo(ac.getAccessibleChild(i).getAccessibleContext());
}
public static void main(String[] args) {
new MainClass("Accessibility Demo1");
}
}
</source>
AccessibleContext: getAccessibleRelationSet()
<source lang="java">
import java.awt.Dimension; import javax.accessibility.AccessibleContext; import javax.accessibility.AccessibleRelation; import javax.accessibility.AccessibleRelationSet; import javax.swing.JComponent; import javax.swing.JFrame; import javax.swing.JLabel; import javax.swing.JPanel; import javax.swing.JTextField; public class MainClass extends JFrame {
MainClass() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel p = new JPanel();
p.setPreferredSize(new Dimension(300, 50));
JLabel jl = new JLabel("Name:");
p.add(jl);
JTextField jtf = new JTextField(20);
jtf.getAccessibleContext().setAccessibleName("Name-entry");
p.add(jtf);
AccessibleRelation ar = new AccessibleRelation("connector", jtf);
AccessibleContext ac = jl.getAccessibleContext();
ac.getAccessibleRelationSet().add(ar);
getContentPane().add(p);
pack();
setVisible(true);
}
public static void main(String[] args) {
MainClass ad11 = new MainClass();
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
}
ad11.dumpConnectedInfo(ad11.getAccessibleContext());
}
void dumpConnectedInfo(AccessibleContext ac) {
AccessibleRelationSet ars = ac.getAccessibleRelationSet();
AccessibleRelation ar = null;
if (ars != null)
ar = ars.get("connector");
if (ar != null) {
Object[] o = ar.getTarget();
JComponent jc = (JComponent) o[0];
System.out.println("Label connected to: " + jc.getAccessibleContext().getAccessibleName());
return;
}
int nChildren = ac.getAccessibleChildrenCount();
for (int i = 0; i < nChildren; i++)
dumpConnectedInfo(ac.getAccessibleChild(i).getAccessibleContext());
}
}
</source>
AccessibleContext: getAccessibleSelection()
<source lang="java">
import java.awt.Dimension; import java.util.Vector; import javax.accessibility.Accessible; import javax.accessibility.AccessibleContext; import javax.accessibility.AccessibleSelection; import javax.swing.JFrame; import javax.swing.JList; import javax.swing.JPanel; import javax.swing.JScrollPane; public class MainClass extends JFrame {
MainClass() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
Vector v = new Vector();
v.add("First item");
v.add("Second item");
v.add("Third item");
v.add("Fourth item");
JPanel p = new JPanel();
p.setPreferredSize(new Dimension(200, 100));
JList jl = new JList(v);
jl.setPreferredSize(new Dimension(100, 75));
p.add(new JScrollPane(jl));
getContentPane().add(p);
pack();
setVisible(true);
}
public static void main(String[] args) {
MainClass ad6 = new MainClass();
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
}
ad6.dumpSelectionInfo(ad6.getAccessibleContext());
}
void dumpSelectionInfo(AccessibleContext ac) {
AccessibleSelection as = ac.getAccessibleSelection();
if (as != null) {
int count = as.getAccessibleSelectionCount();
for (int i = 0; i < count; i++) {
Accessible a = as.getAccessibleSelection(i);
AccessibleContext ac2 = a.getAccessibleContext();
String s = ac2.getAccessibleName();
System.out.println("Name = " + s);
}
return;
}
int nChildren = ac.getAccessibleChildrenCount();
for (int i = 0; i < nChildren; i++)
dumpSelectionInfo(ac.getAccessibleChild(i).getAccessibleContext());
}
}
</source>
AccessibleContext: getAccessibleTable()
<source lang="java">
import java.awt.Dimension; import javax.accessibility.AccessibleContext; import javax.accessibility.AccessibleTable; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollPane; import javax.swing.JTable; public class MainClass extends JFrame {
MainClass() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel p = new JPanel();
p.setPreferredSize(new Dimension(200, 200));
JTable jt = new JTable(10, 3);
p.add(new JScrollPane(jt));
getContentPane().add(p);
pack();
setVisible(true);
}
public static void main(String[] args) {
MainClass ad7 = new MainClass();
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
}
ad7.dumpTableInfo(ad7.getAccessibleContext());
}
void dumpTableInfo(AccessibleContext ac) {
AccessibleTable at = ac.getAccessibleTable();
if (at != null) {
int nCol = at.getAccessibleColumnCount();
System.out.println("Columns = " + nCol);
int nRow = at.getAccessibleRowCount();
System.out.println("Rows = " + nRow);
return;
}
int nChildren = ac.getAccessibleChildrenCount();
for (int i = 0; i < nChildren; i++)
dumpTableInfo(ac.getAccessibleChild(i).getAccessibleContext());
}
}
</source>
AccessibleContext: getAccessibleText()
<source lang="java">
import java.awt.Dimension; import javax.accessibility.AccessibleContext; import javax.accessibility.AccessibleText; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JTextField; public class MainClass extends JFrame {
MainClass() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel p = new JPanel();
p.setPreferredSize(new Dimension(300, 50));
JTextField jtf = new JTextField(20);
jtf.setPreferredSize(new Dimension(100, 20));
p.add(jtf);
getContentPane().add(p);
pack();
setVisible(true);
}
public static void main(String[] args) {
MainClass ad8 = new MainClass();
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
}
ad8.dumpTextInfo(ad8.getAccessibleContext());
}
void dumpTextInfo(AccessibleContext ac) {
AccessibleText at = ac.getAccessibleText();
if (at != null) {
System.out.println("Caret position = " + at.getCaretPosition());
System.out.println("Selected text = " + at.getSelectedText());
return;
}
int nChildren = ac.getAccessibleChildrenCount();
for (int i = 0; i < nChildren; i++)
dumpTextInfo(ac.getAccessibleChild(i).getAccessibleContext());
}
}
</source>
AccessibleContext: getAccessibleValue()
<source lang="java">
import java.awt.Adjustable; import java.awt.Dimension; import javax.accessibility.AccessibleContext; import javax.accessibility.AccessibleValue; import javax.swing.JFrame; import javax.swing.JPanel; import javax.swing.JScrollBar; public class MainClass extends JFrame {
MainClass() {
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
JPanel p = new JPanel();
p.setPreferredSize(new Dimension(300, 50));
JScrollBar jsb;
jsb = new JScrollBar(Adjustable.HORIZONTAL, 0, 1, 0, 100);
jsb.setPreferredSize(new Dimension(200, 20));
p.add(jsb);
getContentPane().add(p);
pack();
setVisible(true);
}
public static void main(String[] args) {
MainClass ad9 = new MainClass();
try {
Thread.sleep(5000);
} catch (InterruptedException e) {
}
ad9.dumpValueInfo(ad9.getAccessibleContext());
}
void dumpValueInfo(AccessibleContext ac) {
AccessibleValue av = ac.getAccessibleValue();
if (av != null) {
System.out.println("Minimum value = " + av.getMinimumAccessibleValue());
System.out.println("Current value = " + av.getCurrentAccessibleValue());
System.out.println("Maximum value = " + av.getMaximumAccessibleValue());
return;
}
int nChildren = ac.getAccessibleChildrenCount();
for (int i = 0; i < nChildren; i++)
dumpValueInfo(ac.getAccessibleChild(i).getAccessibleContext());
}
}
</source>
AccessibleContext: setAccessibleDescription(String s)
<source lang="java">
import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.accessibility.AccessibleContext; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass extends JFrame implements ActionListener {
JButton jb;
MainClass(String title) {
super(title);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
AccessibleContext ac = getAccessibleContext();
ac.setAccessibleDescription("Accessibility Demo1 description.");
ac = getRootPane().getAccessibleContext();
ac.setAccessibleName("Root pane");
ac.setAccessibleDescription("Root pane description");
ac = getGlassPane().getAccessibleContext();
ac.setAccessibleName("Glass pane");
ac.setAccessibleDescription("Glass pane description");
ac = getLayeredPane().getAccessibleContext();
ac.setAccessibleName("Layered pane");
ac.setAccessibleDescription("Layered pane description");
ac = getContentPane().getAccessibleContext();
ac.setAccessibleName("Content pane");
ac.setAccessibleDescription("Content pane description");
JPanel p = new JPanel();
ac = p.getAccessibleContext();
ac.setAccessibleName("Panel");
ac.setAccessibleDescription("Panel description");
jb = new JButton("Press Me");
jb.addActionListener(this);
jb.setToolTipText("Press me for accessibility information.");
p.add(jb);
getContentPane().add(p);
setSize(200, 75);
setVisible(true);
}
public void actionPerformed(ActionEvent e) {
dumpInfo(getAccessibleContext());
}
void dumpInfo(AccessibleContext ac) {
System.out.println("Name = " + ac.getAccessibleName());
System.out.println("Description = " + ac.getAccessibleDescription());
int nChildren = ac.getAccessibleChildrenCount();
for (int i = 0; i < nChildren; i++)
dumpInfo(ac.getAccessibleChild(i).getAccessibleContext());
}
public static void main(String[] args) {
new MainClass("Accessibility Demo1");
}
}
</source>
AccessibleContext: setAccessibleName(String s)
<source lang="java">
import java.awt.event.ActionEvent; import java.awt.event.ActionListener; import javax.accessibility.AccessibleContext; import javax.swing.JButton; import javax.swing.JFrame; import javax.swing.JPanel; public class MainClass extends JFrame implements ActionListener {
JButton jb;
MainClass(String title) {
super(title);
setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
AccessibleContext ac = getAccessibleContext();
ac.setAccessibleDescription("Accessibility Demo1 description.");
ac = getRootPane().getAccessibleContext();
ac.setAccessibleName("Root pane");
ac.setAccessibleDescription("Root pane description");
ac = getGlassPane().getAccessibleContext();
ac.setAccessibleName("Glass pane");
ac.setAccessibleDescription("Glass pane description");
ac = getLayeredPane().getAccessibleContext();
ac.setAccessibleName("Layered pane");
ac.setAccessibleDescription("Layered pane description");
ac = getContentPane().getAccessibleContext();
ac.setAccessibleName("Content pane");
ac.setAccessibleDescription("Content pane description");
JPanel p = new JPanel();
ac = p.getAccessibleContext();
ac.setAccessibleName("Panel");
ac.setAccessibleDescription("Panel description");
jb = new JButton("Press Me");
jb.addActionListener(this);
jb.setToolTipText("Press me for accessibility information.");
p.add(jb);
getContentPane().add(p);
setSize(200, 75);
setVisible(true);
}
public void actionPerformed(ActionEvent e) {
dumpInfo(getAccessibleContext());
}
void dumpInfo(AccessibleContext ac) {
System.out.println("Name = " + ac.getAccessibleName());
System.out.println("Description = " + ac.getAccessibleDescription());
int nChildren = ac.getAccessibleChildrenCount();
for (int i = 0; i < nChildren; i++)
dumpInfo(ac.getAccessibleChild(i).getAccessibleContext());
}
public static void main(String[] args) {
new MainClass("Accessibility Demo1");
}
}
</source>
