| Methods Summary |
|---|
| public java.awt.Component | getComponentAfter(java.awt.Container focusCycleRoot, java.awt.Component aComponent)
if (!(aComponent instanceof JButton)) { return null; }
SortedMap buttons = getSortedButtons(focusCycleRoot);
// Find all buttons after the current one.
String nextName = ((JButton)aComponent).getText() + "\0";
SortedMap nextButtons = buttons.tailMap(nextName);
if (nextButtons.isEmpty()) { // Wrapped back to beginning
if (!buttons.isEmpty()) {
return (Component)buttons.get(buttons.firstKey());
}
return null; // Degenerate case of no buttons.
}
return (Component)nextButtons.get(nextButtons.firstKey());
|
| public java.awt.Component | getComponentBefore(java.awt.Container focusCycleRoot, java.awt.Component aComponent)
if (!(aComponent instanceof JButton)) { return null; }
SortedMap buttons = getSortedButtons(focusCycleRoot);
SortedMap prevButtons = // Find all buttons before this one.
buttons.headMap(((JButton)aComponent).getText());
if (prevButtons.isEmpty()) { // Wrapped back to end.
if (!buttons.isEmpty()) {
return (Component)buttons.get(buttons.lastKey());
}
return null; // Degenerate case of no buttons.
}
return (Component)prevButtons.get(prevButtons.lastKey());
|
| public java.awt.Component | getDefaultComponent(java.awt.Container focusCycleRoot)
return getFirstComponent(focusCycleRoot);
|
| public java.awt.Component | getFirstComponent(java.awt.Container focusCycleRoot)
SortedMap buttons = getSortedButtons(focusCycleRoot);
if (buttons.isEmpty()) { return null; }
return (Component)buttons.get(buttons.firstKey());
|
| public java.awt.Component | getLastComponent(java.awt.Container focusCycleRoot)
SortedMap buttons = getSortedButtons(focusCycleRoot);
if (buttons.isEmpty()) { return null; }
return (Component)buttons.get(buttons.lastKey());
|
| private java.util.SortedMap | getSortedButtons(java.awt.Container focusCycleRoot)
if (focusCycleRoot == null) {
throw new IllegalArgumentException("focusCycleRoot can't be null");
}
SortedMap result = new TreeMap(); // Will sort all buttons by text.
sortRecursive(result, focusCycleRoot);
return result;
|
| private void | sortRecursive(java.util.Map buttons, java.awt.Container container)
for (int i = 0; i < container.getComponentCount(); i++) {
Component c = container.getComponent(i);
if (c instanceof JButton) { // Found another button to sort.
buttons.put(((JButton)c).getText(), c);
}
if (c instanceof Container) { // Found a container to search.
sortRecursive(buttons, (Container)c);
}
}
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