public Dimension getPreferredSize(JComponent c) {
Dimension size;
Insets border = progressBar.getInsets();
FontMetrics fontSizer = progressBar.getFontMetrics(progressBar.getFont());
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
size = new Dimension(getPreferredInnerHorizontal());
// Ensure that the progress string will fit
if (progressBar.isStringPainted()) {
// I'm doing this for completeness.
String progString = progressBar.getString();
int stringWidth = SwingUtilities2.stringWidth(progressBar, fontSizer, progString);
if (stringWidth > size.width) {
size.width = stringWidth;
}
// This uses both Height and Descent to be sure that
// there is more than enough room in the progress bar
// for everything.
// This does have a strange dependency on
// getStringPlacememnt() in a funny way.
int stringHeight = fontSizer.getHeight() + fontSizer.getDescent();
if (stringHeight > size.height) {
size.height = stringHeight;
}
}
} else {
size = new Dimension(getPreferredInnerVertical());
// Ensure that the progress string will fit.
if (progressBar.isStringPainted()) {
String progString = progressBar.getString();
int stringHeight = fontSizer.getHeight() + fontSizer.getDescent();
if (stringHeight > size.width) {
size.width = stringHeight;
}
// This is also for completeness.
int stringWidth = SwingUtilities2.stringWidth(progressBar, fontSizer, progString);
if (stringWidth > size.height) {
size.height = stringWidth;
}
}
}
size.width += border.left + border.right;
size.height += border.top + border.bottom;
return size;
}
/**
* Designate the place where the progress string will be painted. This implementation places it at
* the center of the progress bar (in both x and y). Override this if you want to right, left,
* top, or bottom align the progress string or if you need to nudge it around for any reason.
*/
protected Point getStringPlacement(
Graphics g, String progressString, int x, int y, int width, int height) {
FontMetrics fontSizer = SwingUtilities2.getFontMetrics(progressBar, g, progressBar.getFont());
int stringWidth = SwingUtilities2.stringWidth(progressBar, fontSizer, progressString);
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
return new Point(
x + Math.round(width / 2 - stringWidth / 2),
y
+ ((height + fontSizer.getAscent() - fontSizer.getLeading() - fontSizer.getDescent())
/ 2));
} else { // VERTICAL
return new Point(
x
+ ((width - fontSizer.getAscent() + fontSizer.getLeading() + fontSizer.getDescent())
/ 2),
y + Math.round(height / 2 - stringWidth / 2));
}
}
/**
* Returns the baseline.
*
* @throws NullPointerException {@inheritDoc}
* @throws IllegalArgumentException {@inheritDoc}
* @see javax.swing.JComponent#getBaseline(int, int)
* @since 1.6
*/
public int getBaseline(JComponent c, int width, int height) {
super.getBaseline(c, width, height);
if (progressBar.isStringPainted() && progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
FontMetrics metrics = progressBar.getFontMetrics(progressBar.getFont());
Insets insets = progressBar.getInsets();
int y = insets.top;
height = height - insets.top - insets.bottom;
return y + (height + metrics.getAscent() - metrics.getLeading() - metrics.getDescent()) / 2;
}
return -1;
}
