/**
* 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);
}
}
}
/**
* Paints the progress string.
*
* @param g Graphics used for drawing.
* @param x x location of bounding box
* @param y y location of bounding box
* @param width width of bounding box
* @param height height of bounding box
* @param fillStart start location, in x or y depending on orientation, of the filled portion of
* the progress bar.
* @param amountFull size of the fill region, either width or height depending upon orientation.
* @param b Insets of the progress bar.
*/
private void paintString(
Graphics g, int x, int y, int width, int height, int fillStart, int amountFull, Insets b) {
if (!(g instanceof Graphics2D)) {
return;
}
Graphics2D g2 = (Graphics2D) g;
String progressString = progressBar.getString();
g2.setFont(progressBar.getFont());
Point renderLocation = getStringPlacement(g2, progressString, x, y, width, height);
Rectangle oldClip = g2.getClipBounds();
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
g2.setColor(getSelectionBackground());
SwingUtilities2.drawString(
progressBar, g2, progressString, renderLocation.x, renderLocation.y);
g2.setColor(getSelectionForeground());
g2.clipRect(fillStart, y, amountFull, height);
SwingUtilities2.drawString(
progressBar, g2, progressString, renderLocation.x, renderLocation.y);
} else { // VERTICAL
g2.setColor(getSelectionBackground());
AffineTransform rotate = AffineTransform.getRotateInstance(Math.PI / 2);
g2.setFont(progressBar.getFont().deriveFont(rotate));
renderLocation = getStringPlacement(g2, progressString, x, y, width, height);
SwingUtilities2.drawString(
progressBar, g2, progressString, renderLocation.x, renderLocation.y);
g2.setColor(getSelectionForeground());
g2.clipRect(x, fillStart, width, amountFull);
SwingUtilities2.drawString(
progressBar, g2, progressString, renderLocation.x, renderLocation.y);
}
g2.setClip(oldClip);
}
/**
* Stores the position and size of the bouncing box that would be painted for the current
* animation index in <code>r</code> and returns <code>r</code>. Subclasses that add to the
* painting performed in this class's implementation of <code>paintIndeterminate</code> -- to draw
* an outline around the bouncing box, for example -- can use this method to get the location of
* the bouncing box that was just painted. By overriding this method, you have complete control
* over the size and position of the bouncing box, without having to reimplement <code>
* paintIndeterminate</code>.
*
* @param r the Rectangle instance to be modified; may be <code>null</code>
* @return <code>null</code> if no box should be drawn; otherwise, returns the passed-in rectangle
* (if non-null) or a new rectangle
* @see #setAnimationIndex
* @since 1.4
*/
protected Rectangle getBox(Rectangle r) {
int currentFrame = getAnimationIndex();
int middleFrame = numFrames / 2;
if (sizeChanged() || delta == 0.0 || maxPosition == 0.0) {
updateSizes();
}
r = getGenericBox(r);
if (r == null) {
return null;
}
if (middleFrame <= 0) {
return null;
}
// assert currentFrame >= 0 && currentFrame < numFrames
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
if (currentFrame < middleFrame) {
r.x = componentInnards.x + (int) Math.round(delta * (double) currentFrame);
} else {
r.x = maxPosition - (int) Math.round(delta * (currentFrame - middleFrame));
}
} else { // VERTICAL indeterminate progress bar
if (currentFrame < middleFrame) {
r.y = componentInnards.y + (int) Math.round(delta * currentFrame);
} else {
r.y = maxPosition - (int) Math.round(delta * (currentFrame - middleFrame));
}
}
return r;
}
/** Assumes that the component innards, max position, etc. are up-to-date. */
private Rectangle getGenericBox(Rectangle r) {
if (r == null) {
r = new Rectangle();
}
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
r.width = getBoxLength(componentInnards.width, componentInnards.height);
if (r.width < 0) {
r = null;
} else {
r.height = componentInnards.height;
r.y = componentInnards.y;
}
// end of HORIZONTAL
} else { // VERTICAL progress bar
r.height = getBoxLength(componentInnards.height, componentInnards.width);
if (r.height < 0) {
r = null;
} else {
r.width = componentInnards.width;
r.x = componentInnards.x;
}
} // end of VERTICAL
return r;
}
/**
* 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;
}
public Dimension getMaximumSize(JComponent c) {
Dimension pref = getPreferredSize(progressBar);
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
pref.width = Short.MAX_VALUE;
} else {
pref.height = Short.MAX_VALUE;
}
return pref;
}
/**
* 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;
}
// Called from initIndeterminateValues to initialize the animation index.
// This assumes that numFrames is set to a correct value.
private void initAnimationIndex() {
if ((progressBar.getOrientation() == JProgressBar.HORIZONTAL)
&& (BasicGraphicsUtils.isLeftToRight(progressBar))) {
// If this is a left-to-right progress bar,
// start at the first frame.
setAnimationIndex(0);
} else {
// If we go right-to-left or vertically, start at the right/bottom.
setAnimationIndex(numFrames / 2);
}
}
/**
* This determines the amount of the progress bar that should be filled based on the percent done
* gathered from the model. This is a common operation so it was abstracted out. It assumes that
* your progress bar is linear. That is, if you are making a circular progress indicator, you will
* want to override this method.
*/
protected int getAmountFull(Insets b, int width, int height) {
int amountFull = 0;
BoundedRangeModel model = progressBar.getModel();
if ((model.getMaximum() - model.getMinimum()) != 0) {
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
amountFull = (int) Math.round(width * progressBar.getPercentComplete());
} else {
amountFull = (int) Math.round(height * progressBar.getPercentComplete());
}
}
return amountFull;
}
/**
* Updates delta, max position. Assumes componentInnards is correct (e.g. call after
* sizeChanged()).
*/
private void updateSizes() {
int length = 0;
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
length = getBoxLength(componentInnards.width, componentInnards.height);
maxPosition = componentInnards.x + componentInnards.width - length;
} else { // VERTICAL progress bar
length = getBoxLength(componentInnards.height, componentInnards.width);
maxPosition = componentInnards.y + componentInnards.height - length;
}
// If we're doing bouncing-box animation, update delta.
delta = 2.0 * (double) maxPosition / (double) numFrames;
}
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));
}
}
protected void paintString(
Graphics g, int x, int y, int width, int height, int amountFull, Insets b) {
if (progressBar.getOrientation() == JProgressBar.HORIZONTAL) {
if (BasicGraphicsUtils.isLeftToRight(progressBar)) {
if (progressBar.isIndeterminate()) {
boxRect = getBox(boxRect);
paintString(g, x, y, width, height, boxRect.x, boxRect.width, b);
} else {
paintString(g, x, y, width, height, x, amountFull, b);
}
} else {
paintString(g, x, y, width, height, x + width - amountFull, amountFull, b);
}
} else {
if (progressBar.isIndeterminate()) {
boxRect = getBox(boxRect);
paintString(g, x, y, width, height, boxRect.y, boxRect.height, b);
} else {
paintString(g, x, y, width, height, y + height - amountFull, amountFull, b);
}
}
}
/**
* 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);
}
}