/**
* Query the font height used in calculating line spacing.
*
* @return fontHeight to use to calculate line spacing.
*/
public int getFontHeight() {
int retval = fontHeight;
if (retval < 0) {
final FontMetrics fontMetrics = getFontMetrics(getFont());
retval = fontMetrics.getHeight();
setFontHeight(retval);
}
return retval;
}
private void measure() {
FontMetrics fontmetrics = getFontMetrics(getFont());
if (fontmetrics == null) return;
line_height = fontmetrics.getHeight();
line_ascent = fontmetrics.getAscent();
max_width = 0;
for (int i = 0; i < num_lines; i++) {
line_widths[i] = fontmetrics.stringWidth(lines[i]);
if (line_widths[i] > max_width) max_width = line_widths[i];
}
max_width += 2 * btnMarginWidth;
max_height = num_lines * line_height + 2 * btnMarginHeight;
}
/*
* 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;
}
/** Set the label text. */
private void setLabelText() {
if (!active) {
return;
}
StringBuffer buf = new StringBuffer();
buf.append(" ");
buf.append(getRangeName());
buf.append(": ");
buf.append(StringUtil.padLeft(rangeReadout.getNumericString(), 6));
buf.append(" ");
buf.append(getBearingName());
buf.append(": ");
buf.append(StringUtil.padLeft(bearingReadout.getNumericString(), 6));
String text = buf.toString();
valueDisplay.setText(text);
if (myOwnLabel) {
FontMetrics fm = valueDisplay.getFontMetrics(valueDisplay.getFont());
valueDisplay.setPreferredSize(new Dimension(fm.stringWidth(text), fm.getHeight()));
}
}
/**
* Called to paint the outline.
*
* @param g graphics object to paint.
*/
public void paint(final Graphics g) {
final FontMetrics fontMetrics = getFontMetrics(getFont());
setFontWidth(fontMetrics.stringWidth("_"));
setFontHeight(fontMetrics.getHeight());
if (firstTime) {
firstTime = false;
setVisible("Outline".equalsIgnoreCase(djvuBean.properties.getProperty("navpane")));
}
if (!isVisible()) {
getParent().setVisible(false);
invalidate();
djvuBean.recursiveRevalidate();
} else {
synchronized (activeVector) {
paintItem(0, g, getBookmark(0));
paintCheckbox(0, g, getBookmark(0));
}
}
}
public void draw(
Graphics2D g,
Color stringColor,
Color foreground,
Color background,
String info,
double x,
double y) {
FontMetrics fm = g.getFontMetrics();
int h = fm.getHeight();
int w = fm.stringWidth(info);
r1.setRect(
x - w / 2 - in.left, y - in.top - h / 2, w + in.right + in.left, h + in.bottom + in.top);
g.setColor(background);
g.fill(r1);
g.setColor(stringColor);
g.draw(r1);
g.setColor(foreground);
r2.setRect(r1.getX() + 1, r1.getY() + 1, r1.getWidth() - 2, r1.getHeight() - 2);
g.draw(r2);
g.setColor(stringColor);
g.drawString(
info, (float) (r2.getX() + in.left), (float) (r2.getY() + h - (r2.getHeight() - h) / 2));
}
private int getFontHeight() {
return fmRef.getHeight();
}