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RE: Font Problem

Initially I was doing it this way, scaling the g2d item prior to drawing to it - this was giving me the problems with the output described earlier...  But only after saving and loading a font from a file on my mac.  It may seem strange to save and load the font at the same time, but this is a compressed version of the full application that I am creating.

One problem that I see with this is that if I draw to the full-sized graphics2d object after setting the font in this manner - then the full size image actually does appear the same way that the scaled image appears - it's really odd!

Ok, tried the affinetransform of the font - this resulted in BOTH the old good location string and the bad location string being centered to the full graphics2d, rather than the scaled (0.5) graphics2d object  (which would appear to be 1/4 the screen width)... only now the font appears much smaller.  So..  sadly its not working :(

any other ideas?

CC: email@hidden
From: email@hidden
To: email@hidden
Subject: Re: Font Problem
Date: Thu, 28 Aug 2008 21:50:31 -0400

I think you might be making this a lot harder than it needs to be?

I've looked at your code and I think you are misunderstanding the scale() method.  The scale() method does not "scale" what already has been drawn.  Rather it's a "transform" that affects what WILL be drawn.

Something like this:

// The paint method of a JPanel or similar SWING component.
public void paint(Graphics g) { 
    Graphics2D g2 = (Graphics2D)g.create();

    

    g2.setFont(new Font("Arial", Font.PLAIN, 12));

    

    // set to what ever scaling factor gets the font to the right size you need.
    g2.scale(0.5, 0.5); 

    

    // This position will be scaled too so you'll have to take that into account as well.
    // For example, assuming the example above with a 50% scaling in both vertical and
    // horizontal then a position of (100, 100) would be "transformed" to (50, 50).
    g2.drawString("Foobar", 100, 100);

    

    g2.dispose();
}

An alternative to this is to apply a transform directly to the font itself.  Take a look at Font.deriveFont(AffineTransform).  For the AffineTransform object you'd want something like AffineTransform.getScaleInstance(double, double) and pass that to deriveFont then use that font to do the drawing.  That way you don't have to apply the scale transform to the Graphics2D object so you don't have to worry about the scaling affecting the location.


On Aug 28, 2008, at 9:18 PM, xxxx xxxx wrote:

Thank you for the advice.  I tried it out, here are the results

I scaled it down before I wrote to it, and it had the output described earlier.
I scaled it down AFTERWARDS, and it plain ol' didnt scale the graphics2d object!! I tried to scale it twice after painting to it, but it also did not scale after painting to it..

Thanks though!

CC: email@hidden
From: email@hidden
To: email@hidden
Subject: Re: Font Problem
Date: Thu, 28 Aug 2008 20:40:19 -0400

Instead of drawing to the graphics2D and then scaling that down, try applying a scale transform to the graphics2d so that it draws the text the size you want it in the first place.


On Aug 28, 2008, at 7:52 PM, xxxx xxxx wrote:

hey guys,

I actually took the time today to narrow down my problem from something that contained a large number of classes, down to 2 classes that can display the problem.

I guess at this point Im looking for a little bit of help, or is it a lot of help?  Anyway, here's the issue ---

1.  I write text to a graphics2d object
2.  I scale the graphics2d object and print it to screen.
3.  The first | marks the mid-point of the scaled graphics2d image
4.  The '--Good--' designates one line of text that is printing out in the correct position - centered over the |
5. The '--Bad--' text designates the problem text - it is right aligned with the scaled graphics2d object, while it should also be centered over the pipeline - |

As a quick summary as to what is happening with the 'bad' text, the '--bad--' text SHOULD be centrally aligned to the '|', the midpoint of the scaled graphics2d object.  However, what seems to be causing the issue is that I am saving the font, and re-loading it from a file.  For some reason this seems to be causing the mis-alignment!  But the font is picked up correctly, and it even seems to calculate the print position correctly.

Anyway, I this only happens on mac computers, and I am developing on OSX 10.3.9 with java 1.4.2.

To set this up, put the "vfn" file in the running directory of the running program. The 2 files in testMe should be part of the testMe package, and the test main class should be run.

Thanks to anyone who takes a look at this!

Thanks

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References: 
 >Font Problem (From: xxxx xxxx <email@hidden>)
 >Re: Font Problem (From: Galen Rhodes <email@hidden>)
 >RE: Font Problem (From: xxxx xxxx <email@hidden>)
 >Re: Font Problem (From: Galen Rhodes <email@hidden>)



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