/**
* Sets the index of the current animation frame to the specified value and requests that the
* progress bar be repainted. Subclasses that don't use the default painting code might need to
* override this method to change the way that the <code>repaint</code> method is invoked.
*
* @param newValue the new animation index; no checking is performed on its value
* @see #incrementAnimationIndex
* @since 1.4
*/
protected void setAnimationIndex(int newValue) {
if (animationIndex != newValue) {
if (sizeChanged()) {
animationIndex = newValue;
maxPosition = 0; // needs to be recalculated
delta = 0.0; // needs to be recalculated
progressBar.repaint();
return;
}
// Get the previous box drawn.
nextPaintRect = getBox(nextPaintRect);
// Update the frame number.
animationIndex = newValue;
// Get the next box to draw.
if (nextPaintRect != null) {
boxRect = getBox(boxRect);
if (boxRect != null) {
nextPaintRect.add(boxRect);
}
}
} else { // animationIndex == newValue
return;
}
if (nextPaintRect != null) {
progressBar.repaint(nextPaintRect);
} else {
progressBar.repaint();
}
}
public void drawingInvalidated(DrawingChangeEvent e) {
Rectangle r = e.getInvalidatedRectangle();
if (getDamage() == null) {
setDamage(r);
} else {
// don't manipulate rectangle returned by getDamage() directly
// because it could be a cloned rectangle.
Rectangle damagedR = getDamage();
damagedR.add(r);
setDamage(damagedR);
}
}
/** This method is taken from inside the source of JLabel (in the inner AccessibleJLabel class) */
private Rectangle getTextRectangle() {
final String text = getText();
final Icon icon = (isEnabled()) ? getIcon() : getDisabledIcon();
if ((icon == null) && (text == null)) {
return null;
}
final Rectangle paintIconR = new Rectangle();
final Rectangle paintTextR = new Rectangle();
final Rectangle paintViewR = new Rectangle();
Insets paintViewInsets = new Insets(0, 0, 0, 0);
paintViewInsets = getInsets(paintViewInsets);
paintViewR.x = paintViewInsets.left;
paintViewR.y = paintViewInsets.top;
paintViewR.width = getWidth() - (paintViewInsets.left + paintViewInsets.right);
paintViewR.height = getHeight() - (paintViewInsets.top + paintViewInsets.bottom);
final Graphics g = getGraphics();
if (g == null) {
return null;
}
SwingUtilities.layoutCompoundLabel(
this,
g.getFontMetrics(),
text,
icon,
getVerticalAlignment(),
getHorizontalAlignment(),
getVerticalTextPosition(),
getHorizontalTextPosition(),
paintViewR,
paintIconR,
paintTextR,
getIconTextGap());
final Rectangle returnValue = new Rectangle(paintTextR);
returnValue.add(paintIconR);
return returnValue;
}