Processing 1.0 - Processing Discourse - 0090 createFont trouble

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Index › Suggestions & Bugs › Software Bugs › 0090 createFont trouble

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0090 createFont trouble (Read 2224 times)

Ethan

0090 createFont trouble
May 12^th, 2005, 8:02am

I got this error from an applet in FF on OSX w/Java 1.3.1 - the same applet for a friend on OSX w/Java 1.4 also stalled, and another friend on XP with 1.5 from sun also couldn't see it...

I was trying to load a ttf file. I hadn't realized I could convert to vlw through the menu. I did that used loadFont() - no problems.... Just wanted to mention it.

This is what I was getting out of my console:

java.security.AccessControlException: access denied (java.lang.RuntimePermission accessDeclaredMembers)

at java.security.AccessControlContext.checkPermission(AccessControlContext.java:267
)

at java.security.AccessController.checkPermission(AccessController.java:394)

at java.lang.SecurityManager.checkPermission(SecurityManager.java:540)

at java.lang.SecurityManager.checkMemberAccess(SecurityManager.java:1645)

at java.lang.Class.checkMemberAccess(Class.java:1332)

at java.lang.Class.getDeclaredField(Class.java:1107)

at processing.core.PFont.<init>(PFont.java:749)

at processing.core.PApplet.createFont(PApplet.java:2841)

at processing.core.PApplet.createFont(PApplet.java:2779)

at word_connect.setup(word_connect.java:24)

at processing.core.PApplet.display(PApplet.java:1017)

at processing.core.PGraphics.requestDisplay(PGraphics.java:362)

at processing.core.PApplet.run(PApplet.java:921)

at java.lang.Thread.run(Thread.java:491)

Error while running applet.

java.lang.RuntimeException: access denied (java.lang.RuntimePermission accessDeclaredMembers)

at processing.core.PFont.<init>(PFont.java:952)

at processing.core.PApplet.createFont(PApplet.java:2841)

at processing.core.PApplet.createFont(PApplet.java:2779)

at word_connect.setup(word_connect.java:24)

at processing.core.PApplet.display(PApplet.java:1017)

at processing.core.PGraphics.requestDisplay(PGraphics.java:362)

at processing.core.PApplet.run(PApplet.java:921)

at java.lang.Thread.run(Thread.java:491)

fry YaBB Moderator Offline Posts: 2623 mass, usa	Re: 0090 createFont trouble Reply #1 - May 12^th, 2005, 4:39pm bummer, looks like you can't use createFont() in applets.

cello

Re: 0090 createFont trouble
Reply #2 - May 12^th, 2005, 6:21pm

I think I might have found the bug

PFont.java:749:

Field antialiasingKeyField = renderingHintsClass.getDeclaredField("KEY_TEXT_ANTIALIASING");

That field is a member of RenderingHints.Key, not RenderingHints according to javadocs. You create a renderingHintsKeyClass object, but don't actually use it to get the field.

Marcello

fry

Re: 0090 createFont trouble
Reply #3 - May 13^th, 2005, 6:08am

nah, it's of type RenderingHints.Key, but it's *in* the RenderingHints class. if i change to the .Key class i get a no such field error. this is a bit kooky though, this isn't something that should be throwing a security exception, so i'm not sure what's up. i suspect that there might be a way to deal with it by using another method.

cello

Re: 0090 createFont trouble
Reply #4 - May 13^th, 2005, 5:24pm

well, for one of my applets I have:
Code:


import java.awt.Graphics;
import java.awt.Graphics2D;
import java.awt.RenderingHints;

class BrushGraphics2D {
	public static final void setTextAntialiasing(Graphics g, boolean antialias) {
		Graphics2D g2 = (Graphics2D)g;
		g2.setRenderingHint(RenderingHints.KEY_TEXT_ANTIALIASING, antialias ? RenderingHints.VALUE_TEXT_ANTIALIAS_ON :  RenderingHints.VALUE_TEXT_ANTIALIAS_OFF);
	}
}

Then I conditionally call that function if they have java 2. I haven't had any security exceptions or anything trying to do that, and it works on older browsers (they don't try to load that class).

Marcello

fry YaBB Moderator Offline Posts: 2623 mass, usa	Re: 0090 createFont trouble Reply #5 - May 14^th, 2005, 3:37pm i'll see if that works, it didn't used to, that it was necessary to keep the code in a separate class, but will look into it.

fry YaBB Moderator Offline Posts: 2623 mass, usa	Re: 0090 createFont trouble Reply #6 - Jul 28^th, 2005, 5:07am now filed in the bugs db: http://dev.processing.org/bugs/show_bug.cgi?id=101

fry YaBB Moderator Offline Posts: 2623 mass, usa	Re: 0090 createFont trouble Reply #7 - Sep 13^th, 2006, 3:41am fixed for 0116.

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