/**
* Returns the spacing between each of the cells/units in the progress bar. However, for text
* rendering simplification and aesthetic considerations, this function will return 0 when the
* progress string is being rendered.
*
* @return the value representing the spacing between cells
* @see #setCellSpacing
* @see JProgressBar#isStringPainted
*/
protected int getCellSpacing() {
if (progressBar.isStringPainted()) {
return 0;
} else {
return cellSpacing;
}
}
/**
* All purpose paint method that should do the right thing for all linear bouncing-box progress
* bars. Override this if you are making another kind of progress bar.
*
* @see #paintDeterminate
* @since 1.4
*/
protected void paintIndeterminate(Graphics g, JComponent c) {
if (!(g instanceof Graphics2D)) {
return;
}
Insets b = progressBar.getInsets(); // area for border
int barRectWidth = progressBar.getWidth() - (b.right + b.left);
int barRectHeight = progressBar.getHeight() - (b.top + b.bottom);
if (barRectWidth <= 0 || barRectHeight <= 0) {
return;
}
Graphics2D g2 = (Graphics2D) g;
// Paint the bouncing box.
boxRect = getBox(boxRect);
if (boxRect != null) {
g2.setColor(progressBar.getForeground());
g2.fillRect(boxRect.x, boxRect.y, boxRect.width, boxRect.height);
}
// Deal with possible text painting
if (progressBar.isStringPainted()) {
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
paintString(g2, b.left, b.top, barRectWidth, barRectHeight, boxRect.x, boxRect.width, b);
} else {
paintString(g2, b.left, b.top, barRectWidth, barRectHeight, boxRect.y, boxRect.height, b);
}
}
}
/**
* Returns the width (if HORIZONTAL) or height (if VERTICAL) of each of the individual cells/units
* to be rendered in the progress bar. However, for text rendering simplification and aesthetic
* considerations, this function will return 1 when the progress string is being rendered.
*
* @return the value representing the spacing between cells
* @see #setCellLength
* @see JProgressBar#isStringPainted
*/
protected int getCellLength() {
if (progressBar.isStringPainted()) {
return 1;
} else {
return cellLength;
}
}
/**
* Returns an enum indicating how the baseline of the component changes as the size changes.
*
* @throws NullPointerException {@inheritDoc}
* @see javax.swing.JComponent#getBaseline(int, int)
* @since 1.6
*/
public Component.BaselineResizeBehavior getBaselineResizeBehavior(JComponent c) {
super.getBaselineResizeBehavior(c);
if (progressBar.isStringPainted() && progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
return Component.BaselineResizeBehavior.CENTER_OFFSET;
}
return Component.BaselineResizeBehavior.OTHER;
}
private static int getProgressBarBaseline(JProgressBar pb, int height) {
if (pb.isStringPainted() && pb.getOrientation() == JProgressBar.HORIZONTAL) {
FontMetrics metrics = pb.getFontMetrics(pb.getFont());
Insets insets = pb.getInsets();
int y = insets.top;
if (isWindows() && isXP()) {
if (pb.isIndeterminate()) {
y = -1;
height--;
} else {
y = 0;
height -= 3;
}
} else if (isGTK()) {
return (height - metrics.getAscent() - metrics.getDescent()) / 2 + metrics.getAscent();
} else if (isAqua()) {
if (pb.isIndeterminate()) {
// Aqua doesn't appear to support text on indeterminate
// progress bars.
return -1;
}
y -= 1;
height -= (insets.top + insets.bottom);
} else {
height -= insets.top + insets.bottom;
}
return y + (height + metrics.getAscent() - metrics.getLeading() - metrics.getDescent()) / 2;
}
return -1;
}
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;
}
/**
* 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;
}
/**
* All purpose paint method that should do the right thing for almost all linear, determinate
* progress bars. By setting a few values in the defaults table, things should work just fine to
* paint your progress bar. Naturally, override this if you are making a circular or semi-circular
* progress bar.
*
* @see #paintIndeterminate
* @since 1.4
*/
protected void paintDeterminate(Graphics g, JComponent c) {
if (!(g instanceof Graphics2D)) {
return;
}
Insets b = progressBar.getInsets(); // area for border
int barRectWidth = progressBar.getWidth() - (b.right + b.left);
int barRectHeight = progressBar.getHeight() - (b.top + b.bottom);
if (barRectWidth <= 0 || barRectHeight <= 0) {
return;
}
int cellLength = getCellLength();
int cellSpacing = getCellSpacing();
// amount of progress to draw
int amountFull = getAmountFull(b, barRectWidth, barRectHeight);
Graphics2D g2 = (Graphics2D) g;
g2.setColor(progressBar.getForeground());
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
// draw the cells
if (cellSpacing == 0 && amountFull > 0) {
// draw one big Rect because there is no space between cells
g2.setStroke(
new BasicStroke((float) barRectHeight, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
} else {
// draw each individual cell
g2.setStroke(
new BasicStroke(
(float) barRectHeight,
BasicStroke.CAP_BUTT,
BasicStroke.JOIN_BEVEL,
0.f,
new float[] {cellLength, cellSpacing},
0.f));
}
if (BasicGraphicsUtils.isLeftToRight(c)) {
g2.drawLine(
b.left, (barRectHeight / 2) + b.top, amountFull + b.left, (barRectHeight / 2) + b.top);
} else {
g2.drawLine(
(barRectWidth + b.left),
(barRectHeight / 2) + b.top,
barRectWidth + b.left - amountFull,
(barRectHeight / 2) + b.top);
}
} else { // VERTICAL
// draw the cells
if (cellSpacing == 0 && amountFull > 0) {
// draw one big Rect because there is no space between cells
g2.setStroke(
new BasicStroke((float) barRectWidth, BasicStroke.CAP_BUTT, BasicStroke.JOIN_BEVEL));
} else {
// draw each individual cell
g2.setStroke(
new BasicStroke(
(float) barRectWidth,
BasicStroke.CAP_BUTT,
BasicStroke.JOIN_BEVEL,
0f,
new float[] {cellLength, cellSpacing},
0f));
}
g2.drawLine(
barRectWidth / 2 + b.left,
b.top + barRectHeight,
barRectWidth / 2 + b.left,
b.top + barRectHeight - amountFull);
}
// Deal with possible text painting
if (progressBar.isStringPainted()) {
paintString(g, b.left, b.top, barRectWidth, barRectHeight, amountFull, b);
}
}
private static int getProgressBarBaselineResizeBehavior(JProgressBar pb) {
if (pb.isStringPainted() && pb.getOrientation() == JProgressBar.HORIZONTAL) {
return BRB_CENTER_OFFSET;
}
return BRB_OTHER;
}