/**
* 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();
}
}
