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;
}
/*
* Determine the Y offset for the current row
*/
private int getOffsetY(int rowStartOffset, FontMetrics fontMetrics) throws BadLocationException {
// Get the bounding rectangle of the row
Rectangle r = component.modelToView(rowStartOffset);
int lineHeight = fontMetrics.getHeight();
int y = r.y + r.height;
int descent = 0;
// The text needs to be positioned above the bottom of the bounding
// rectangle based on the descent of the font(s) contained on the row.
if (r.height == lineHeight) {
// default font is being used
descent = fontMetrics.getDescent();
} else {
// We need to check all the attributes for font changes
if (fonts == null) {
fonts = new HashMap<String, FontMetrics>();
}
Element root = component.getDocument().getDefaultRootElement();
int index = root.getElementIndex(rowStartOffset);
Element line = root.getElement(index);
for (int i = 0; i < line.getElementCount(); i++) {
Element child = line.getElement(i);
AttributeSet as = child.getAttributes();
String fontFamily = (String) as.getAttribute(StyleConstants.FontFamily);
Integer fontSize = (Integer) as.getAttribute(StyleConstants.FontSize);
String key = fontFamily + fontSize;
FontMetrics fm = fonts.get(key);
if (fm == null) {
Font font = new Font(fontFamily, Font.PLAIN, fontSize);
fm = component.getFontMetrics(font);
fonts.put(key, fm);
}
descent = Math.max(descent, fm.getDescent());
}
}
return y - descent;
}
private static int getPanelBaseline(JPanel panel, int height) {
Border border = panel.getBorder();
if (border instanceof TitledBorder) {
TitledBorder titledBorder = (TitledBorder) border;
if (titledBorder.getTitle() != null && !"".equals(titledBorder.getTitle())) {
Font font = titledBorder.getTitleFont();
if (font == null) {
font = panel.getFont();
if (font == null) {
font = new Font("Dialog", Font.PLAIN, 12);
}
}
Border border2 = titledBorder.getBorder();
Insets borderInsets;
if (border2 != null) {
borderInsets = border2.getBorderInsets(panel);
} else {
borderInsets = EMPTY_INSETS;
}
FontMetrics fm = panel.getFontMetrics(font);
int fontHeight = fm.getHeight();
int descent = fm.getDescent();
int ascent = fm.getAscent();
int y = EDGE_SPACING;
int h = height - EDGE_SPACING * 2;
int diff;
switch (((TitledBorder) border).getTitlePosition()) {
case TitledBorder.ABOVE_TOP:
diff = ascent + descent + (Math.max(EDGE_SPACING, TEXT_SPACING * 2) - EDGE_SPACING);
return y + diff - (descent + TEXT_SPACING);
case TitledBorder.TOP:
case TitledBorder.DEFAULT_POSITION:
diff = Math.max(0, ((ascent / 2) + TEXT_SPACING) - EDGE_SPACING);
return (y + diff - descent) + (borderInsets.top + ascent + descent) / 2;
case TitledBorder.BELOW_TOP:
return y + borderInsets.top + ascent + TEXT_SPACING;
case TitledBorder.ABOVE_BOTTOM:
return (y + h) - (borderInsets.bottom + descent + TEXT_SPACING);
case TitledBorder.BOTTOM:
h -= fontHeight / 2;
return ((y + h) - descent) + ((ascent + descent) - borderInsets.bottom) / 2;
case TitledBorder.BELOW_BOTTOM:
h -= fontHeight;
return y + h + ascent + TEXT_SPACING;
}
}
}
return -1;
}
private static int getSliderBaseline(JSlider slider, int height) {
// We don't handle GTK as too much is hidden to be able to calculate it
if (slider.getPaintLabels() && !isGTK()) {
boolean isAqua = isAqua();
FontMetrics metrics = slider.getFontMetrics(slider.getFont());
Insets insets = slider.getInsets();
Insets focusInsets = (Insets) UIManager.get("Slider.focusInsets");
if (slider.getOrientation() == JSlider.HORIZONTAL) {
int tickLength = 8;
int contentHeight =
height - insets.top - insets.bottom - focusInsets.top - focusInsets.bottom;
int thumbHeight = 20;
if (isMetal()) {
tickLength = ((Integer) UIManager.get("Slider.majorTickLength")).intValue() + 5;
thumbHeight = UIManager.getIcon("Slider.horizontalThumbIcon").getIconHeight();
} else if (isWindows() && isXP()) {
// NOTE: this is not correct, this should come from
// the skin (in >= 1.5), but short of reflection
// hacks we don't have access to the real value.
thumbHeight++;
}
int centerSpacing = thumbHeight;
if (isAqua || slider.getPaintTicks()) {
// centerSpacing += getTickLength();
centerSpacing += tickLength;
}
// Assume uniform labels.
centerSpacing += metrics.getAscent() + metrics.getDescent();
int trackY = insets.top + focusInsets.top + (contentHeight - centerSpacing - 1) / 2;
if (isAqua) {
if (slider.getPaintTicks()) {
int prefHeight = slider.getUI().getPreferredSize(slider).height;
int prefDelta = height - prefHeight;
if (prefDelta > 0) {
trackY -= Math.min(1, prefDelta);
}
} else {
trackY--;
}
}
int trackHeight = thumbHeight;
int tickY = trackY + trackHeight;
int tickHeight = tickLength;
if (!isAqua && !slider.getPaintTicks()) {
tickHeight = 0;
}
int labelY = tickY + tickHeight;
return labelY + metrics.getAscent();
} else { // vertical
boolean inverted = slider.getInverted();
Integer value = inverted ? getMinSliderValue(slider) : getMaxSliderValue(slider);
if (value != null) {
int thumbHeight = 11;
if (isMetal()) {
thumbHeight = UIManager.getIcon("Slider.verticalThumbIcon").getIconHeight();
}
int trackBuffer = Math.max(metrics.getHeight() / 2, thumbHeight / 2);
int contentY = focusInsets.top + insets.top;
int trackY = contentY + trackBuffer;
int trackHeight =
height
- focusInsets.top
- focusInsets.bottom
- insets.top
- insets.bottom
- trackBuffer
- trackBuffer;
int maxValue = getMaxSliderValue(slider).intValue();
int min = slider.getMinimum();
int max = slider.getMaximum();
double valueRange = (double) max - (double) min;
double pixelsPerValue = (double) trackHeight / (double) valueRange;
int trackBottom = trackY + (trackHeight - 1);
if (isAqua) {
trackY -= 3;
trackBottom += 6;
}
int yPosition = trackY;
double offset;
if (!inverted) {
offset = pixelsPerValue * ((double) max - value.intValue());
} else {
offset = pixelsPerValue * ((double) value.intValue() - min);
}
if (isAqua) {
yPosition += Math.floor(offset);
} else {
yPosition += Math.round(offset);
}
yPosition = Math.max(trackY, yPosition);
yPosition = Math.min(trackBottom, yPosition);
if (isAqua) {
return yPosition + metrics.getAscent();
}
return yPosition - metrics.getHeight() / 2 + metrics.getAscent();
}
}
}
return -1;
}