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Index › Programming Questions & Help › Syntax Questions › Get current ellipse mode
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Get current ellipse mode? (Read 550 times)
cloister
Get current ellipse mode?
Mar 10th, 2009, 9:15pm  
So I can set the ellipse mode with ellipseMode(), but is there any way to _get_ the current mode?

This would be nice so that classes which need to do drawing in a particular mode can avoid having side-effects on later code.  What I want is:

Class foo {
 void someMethod()
 {
   mode = GetCurrentEllipseMode();  // remember the current mode
   ellipseMode(CENTER); // set the mode I want
   ellipse(...); // draw something.
   ellipseMode(mode); // restore the old mode before returning.
 }
}

Any way to do this?
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PhiLho 
Re: Get current ellipse mode?
Reply #1 - Mar 10th, 2009, 9:52pm  
From PGraphics.java:

 /** The current rect mode (read-only) */
 public int rectMode;
 /** The current ellipse mode (read-only) */
 public int ellipseMode;
 /** The current shape alignment mode (read-only) */
 public int shapeMode;
 /** The current image alignment (read-only) */
 public int imageMode = CORNER;

Of course, if all classes set the mode before drawing, it is unnecessary. Except for code that you don't own (libraries...).
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cloister
Re: Get current ellipse mode?
Reply #2 - Mar 10th, 2009, 10:28pm  
Hm.  "int curEllipse = PGraphics.ellipseMode;" gives me "cannot make a static reference to the non-static field PGraphics.ellipseMode."  Sorry if this is a dumb question, but should I be accessing it differently?  

And yes, the class will (if I go that far) become part of a library which is why I'm worried about it.

Similarly, what about getting the current fill and stroke values?
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JohnG
Re: Get current ellipse mode?
Reply #3 - Mar 10th, 2009, 11:46pm  
try:

Code:
int curEllipse=g.ellipseMode;
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PhiLho 
Re: Get current ellipse mode?
Reply #4 - Mar 11th, 2009, 7:42am  
Actually, I come here thinking of a better solution, answering your second question as well: fry recently added pushStyle() and popStyle() to Processing, it addresses nicely and in a complete way your concerns of isolation of modes/states.
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cloister
Re: Get current ellipse mode?
Reply #5 - Mar 11th, 2009, 5:32pm  
Oh, yes, that's just the ticket.  I love it when people get these features implemented before I even ask for them.  :)
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