@Override
public void focusGained(final FocusEvent e) {
final JTextComponent component = getComponent();
if (!component.isEnabled() || !component.isEditable()) {
super.focusGained(e);
return;
}
mFocused = true;
if (!shouldSelectAllOnFocus) {
shouldSelectAllOnFocus = true;
super.focusGained(e);
return;
}
if (isMultiLineEditor) {
super.focusGained(e);
return;
}
final int end = component.getDocument().getLength();
final int dot = getDot();
final int mark = getMark();
if (dot == mark) {
if (dot == 0) {
component.setCaretPosition(end);
component.moveCaretPosition(0);
} else if (dot == end) {
component.setCaretPosition(0);
component.moveCaretPosition(end);
}
}
super.focusGained(e);
}
public void focusGained(FocusEvent e) {
inModalMode = true;
if (debug) System.out.println("gained focus");
setBlinkRate(500);
// setCaretValue(caretValue);
super.focusGained(e);
}
@Override
protected void fireStateChanged() {
// If we have focus the caret should only flash if the range length is zero
if (mFocused) setVisible(getComponent().isEditable());
super.fireStateChanged();
}
// This fixes the problem where when on the mac you have to ctrl left click to
// get popup triggers the caret has code that only looks at button number.
// see radar # 3125390
@Override
public void mousePressed(final MouseEvent e) {
if (!e.isPopupTrigger()) {
super.mousePressed(e);
shouldSelectAllOnFocus = false;
}
}
// See <rdar://problem/3833837> 1.4.2_05-141.3: JTextField performance with
// Aqua L&F. We are getting into a circular condition with the BasicCaret
// paint code since it doesn't know about the fact that our damage routine
// above elminates the border. Sadly we can't easily change either one, so
// we will add a painting flag and not damage during a repaint.
@Override
public void paint(final Graphics g) {
if (isVisible()) {
fPainting = true;
super.paint(g);
fPainting = false;
}
}
@Override
public void focusLost(final FocusEvent e) {
mFocused = false;
shouldSelectAllOnFocus = true;
if (isMultiLineEditor) {
setVisible(false);
getComponent().repaint();
} else {
super.focusLost(e);
}
}
private void setCaretValue(int i) {
caret.setVisible(true);
caretValue = i;
int min = 0;
int max = getText().length();
if (i < min) i = min;
if (i > max) i = max;
if (debug) System.out.println("setSelectionStart: " + i);
setSelectionStart(i);
setSelectionEnd(i);
}
public LineCursorTextArea() {
super();
caret =
new DefaultCaret() {
@Override
protected synchronized void damage(Rectangle r) {
if (r != null) {
JTextComponent c = getComponent();
x = 0;
y = r.y;
width = c.getSize().width;
height = r.height;
c.repaint();
}
}
};
caret.setBlinkRate(getCaret().getBlinkRate());
setCaret(caret);
}
/** Only show the flashing caret if the selection range is zero */
@Override
public void setVisible(boolean e) {
if (e) e = getDot() == getMark();
super.setVisible(e);
}
@Override
public void deinstall(final JTextComponent c) {
c.removePropertyChangeListener(this);
super.deinstall(c);
}
@Override
public void install(final JTextComponent c) {
super.install(c);
isMultiLineEditor = c instanceof JTextArea || c instanceof JEditorPane;
c.addPropertyChangeListener(this);
}