You were right, Wilhelm. It appears that the text isn't visible
because it has been shifted completely outside the bounds of the
component. Applying an (apparently arbitrary?) translation drags it
back to where it should have been:
public class MacFontTest
{
public static void main(String[] p_argv)
{
JFrame frame = new JFrame("test");
frame.getContentPane().setLayout(new FlowLayout());
frame.setDefaultCloseOperation(frame.EXIT_ON_CLOSE);
Font f = new Font("SansSerif", Font.BOLD, 12);
AffineTransform a;
JButton normal = new JButton("Hello, world");
normal.setOpaque(false);
a = AffineTransform.getScaleInstance(1.0, 1.0);
Font f1 = f.deriveFont(a);
normal.setFont(f1);
JButton scaled = new JButton("Hello, world");
scaled.setOpaque(false);
a = AffineTransform.getScaleInstance(2.0, 2.0);
a.translate(-6.5,-13); // Why??????????
Font f2 = f.deriveFont(a);
scaled.setFont(f2);
JButton larger = new JButton("Hello, world");
larger.setOpaque(false);
Font f3 = new Font("SansSerif",Font.BOLD,24);
larger.setFont(f3);
I can't work out any coherent rules for what translation to apply in
any situation, so this doesn't seem to be the basis for a workaround.
On 18-Mar-05, at 4:59 PM, Wilhelm Fitzpatrick wrote:
On Mar 18, 2005, at 4:54 PM, Jim Douglas wrote:
Can anyone see why this doesn't work on the Mac?
We use AffineTransforms to scale fonts,
...
On my PowerBook, the first button works as expected, and the second
button is correctly scaled, but the text isn't visible. Any
thoughts?
I wrote some code to manipulate text via AffineTransforms a few months
ago and found that under 1.4 on the Mac, not only would it scale the
text but it would also radically reposition it within the drawing
area. I'm guessing your text isn't visible because it's been moved
out the visible part of your drawing area. I'm pretty sure this has
to be a bug.
However, everything thing seemed to work correctly under 1.3 on the
Mac.
-wilhelm
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