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Accessing protected PGraphics vars by subclassing in anonymous package

[3 Replies]
- 15-May-2011 11:58 AM
- Forum: General Discussion
I'm writing a class to add HTML textarea functionality to Processing's built-in text(String, int, int, int, int) function. I'd like to subclass PGraphics so I can gain access to the protected fields int[] textBreakStart and int[] textBreakStop. I found this forum post from 2010 where antiplastik explains the proper way to subclass PGraphics is to call:
1. Classname varname = (Classname) createGraphics(width, height, "packagename.Classname")
What parameters would I use to call this with a class declared in the anonymous package, inside a processing sketch? This doesn't work:
2. class MyPG extends PGraphics2D {
3. }
5. void setup() {
6. MyPG mypg = (MyPG) createGraphics( width, height, "MyPG" );
7. }
8. // result:
9. //
10. // Exception in thread "Animation Thread" java.lang.RuntimeException: You need to use "Import Library" to add MyPG to your sketch.
11. // at processing.core.PApplet.makeGraphics(Unknown Source)
12. // at processing.core.PApplet.createGraphics(Unknown Source)
13. // at subclass_pgraphics.setup(subclass_pgraphics.java:21)
14. // at processing.core.PApplet.handleDraw(Unknown Source)
15. // at processing.core.PApplet.run(Unknown Source)
16. // at java.lang.Thread.run(Thread.java:662)

ProHTML: how to get text inside <p> tags?

[4 Replies]
- 06-May-2011 08:05 AM
- Forum: Contributed Library Questions
I'm using ProHTML to extract the biographies from congress.gov. Here's an example page:
http://bioguide.congress.gov/scripts/biodisplay.pl?index=H000213

I'd like to get the text inside the <p> tag that contains the biography. For some reason, though, I'm unable to get at the text inside the StandAloneElement. Each StandAloneElement sae.hasChildren() returns false, even though there must be a text node inside the <p> tag. What am I missing?
import prohtml.*;

import java.util.List;

HtmlElementFinder htmlElementFinder;

String url = "http://bioguide.congress.gov/scripts/biodisplay.pl?index=H000213"

htmlElementFinder = new HtmlElementFinder(url, "p");

java.util.List bio = htmlElementFinder.getElements();

for (int i = 0;i<bio.size();i++) {

StandAloneElement sae = (StandAloneElement)bio.get(i);

println( sae.hasChildren() ); // prints false for some reason

}
I tried doing this first with XMLElement, but I couldn't figure out how to cast the HTML to a valid XML document.

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