File APIs for Java Developers
Manipulate DOC, XLS, PPT, PDF and many others from your application.
http://aspose.com/file-tools
Win a copy of Clojure in Action this week in the Clojure forum!
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

GWTCanvas alternatives

 
Laura Bickle
Greenhorn
Posts: 1
  • 0
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I'm trying to create a chart using GWT. The chart has a grid and x and y axis labels and at least one line indicating status over time. The example code I got from a co-worker uses two classes the com.google.gwt.widgetideas.graphics.client package: GWTCanvas and Color.

The documentation about GWTCanvas says to use Canvas instead, but Canvas has a very limited number of methods. How do I replicate these methods?
- clear()
- setFillStyle(Color color)
- fillRect(double startX, double startY, double width, double height)
- setLineWidth(double width)
- setStrokeStyle(Color color)
- beginPath()
- moveTo(double x, double y)
- lineTo(double x, double y)
- stoke()

Any help is appreciated. Thanks!
-Laura
 
Maneesh Godbole
Saloon Keeper
Posts: 10971
11
Android Eclipse IDE Google Web Toolkit Java Mac Ubuntu
  • 0
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Welcome to the Ranch.

To start with,the Canvas API docs of v2.3 says
This widget may not be supported on all browsers.
I hope you are aware of that. If you want to display charts, you might find this interesting http://code.google.com/p/gwt-google-apis/wiki/VisualizationGettingStarted

Coming back to your question. Check out Canvas#getContext2d.
 
I agree. Here's the link: http://aspose.com/file-tools
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic