On 9/22/06, Ilya Okomin <[EMAIL PROTECTED]> wrote:
Hi, all!I was playing with fonts and found that Font with negative size can be created on RI. Unfortunately spec keep silence about fonts with negative sizes. On Harmony if font size is negative then it is set to zero. ------------test.java--------------- import java.awt.*; import java.awt.font.FontRenderContext; public class NegativeFontTest { public static void main(String[] args) { int fontsize=-5; Font localFont = new Font("Arial", 2, fontsize); System.out.println("Size = " + localFont.getSize2D()); System.out.println("Height = " + localFont.getLineMetrics("", new FontRenderContext(null, false, false)).getHeight()); System.out.println("MaxCharBounds = " + localFont.getMaxCharBounds(new FontRenderContext(null, false, false))); } } ---------------------------------------- If you run this test case on RI you can see that output looks quite strange: Size = -5.0 Height = -5.7495117 MaxCharBounds = java.awt.geom.Rectangle2D$Float[x=0.0,y=4.6081543,w=-5.46875 ,h=-5.7495117] Actually, I dont see any sence in negative height and width metrics and I think it is an RI bug. If you try to draw text with such font on RI - nothing is happen, you can't see any text on the component. I've ran 'xfontsel' tool on Linux and there was suggested to choose only positive sized fonts. Also I've looked on the GDI LOGFONT structure description in MSDN and I've seen there again that we deal with absolute height values. Any thoughts on this issue, is it RI bug or not?
We cannot say it's a bug of RI, because the spec does not explicitly describe the requirement of font size. I suggest we follow RI. Best regards, Richard
Thanks, Ilya. -- -- Ilya Okomin Intel Middleware Products Division
-- Richard Liang China Development Lab, IBM --------------------------------------------------------------------- Terms of use : http://incubator.apache.org/harmony/mailing.html To unsubscribe, e-mail: [EMAIL PROTECTED] For additional commands, e-mail: [EMAIL PROTECTED]
