}
}
+ private Font lastSelected = null;
+
+ private int lastSelStyle = 0;
+
+ private int lastSelSize = 0;
+
+ private boolean lastSelMono = false;
+
/**
* DOCUMENT ME!
*/
void changeFont()
{
+ if (lastSelected == null)
+ {
+ // initialise with original font
+ lastSelected = oldFont;
+ lastSelSize = oldFont.getSize();
+ lastSelStyle = oldFont.getStyle();
+ FontMetrics fm = getGraphics().getFontMetrics(oldFont);
+ double mw = fm.getStringBounds("M", getGraphics()).getWidth(), iw = fm
+ .getStringBounds("I", getGraphics()).getWidth();
+ lastSelMono = mw == iw;
+ }
+
Font newFont = new Font(fontName.getSelectedItem().toString(),
fontStyle.getSelectedIndex(), Integer.parseInt(fontSize
.getSelectedItem().toString()));
+ FontMetrics fm = getGraphics().getFontMetrics(newFont);
+ double mw = fm.getStringBounds("M", getGraphics()).getWidth(), iw = fm
+ .getStringBounds("I", getGraphics()).getWidth();
+ if (mw < 1 || iw < 1)
+ {
+ fontName.setSelectedItem(lastSelected.getName());
+ fontStyle.setSelectedIndex(lastSelStyle);
+ fontSize.setSelectedItem("" + lastSelSize);
+ monospaced.setSelected(lastSelMono);
+ JOptionPane
+ .showInternalMessageDialog(
+ this,
+ "Font doesn't have letters defined\nso cannot be used\nwith alignment data.",
+ "Invalid Font", JOptionPane.WARNING_MESSAGE);
+ return;
+ }
if (tp != null)
{
tp.setTreeFont(newFont);
ap.fontChanged();
}
- FontMetrics fm = getGraphics().getFontMetrics(newFont);
-
- monospaced.setSelected(fm.getStringBounds("M", getGraphics())
- .getWidth() == fm.getStringBounds("|", getGraphics())
- .getWidth());
-
+ monospaced.setSelected(mw == iw);
+ // remember last selected
+ lastSelected = newFont;
}
/**