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;
}
