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Bug 387034

Summary:	[Canvas] Refactor Canvas to improve ClientScripting Paint event
Product:	[RT] RAP	Reporter:	Tim Buschtoens <tbuschto>
Component:	RWT	Assignee:	Project Inbox <rap-inbox>
Status:	RESOLVED FIXED	QA Contact:
Severity:	enhancement
Priority:	P3	CC:	tbuschto
Version:	2.0
Target Milestone:	2.0 M1
Hardware:	All
OS:	All
Whiteboard:
Bug Depends on:
Bug Blocks:	386833

Description Tim Buschtoens

2012-08-10 13:18:57 EDT

ClientScripting can support the Paint event, but there are some issues that require changes in the core framework.

1. The cross-browser API is not as comprehensive as it could be. Specifically rect and arc can easily be supported, but are not in IE.

2. Currently in case of Canvas, client and server each use their own GC instance. They should share one instance, but without establishing a strict 1:1 connection that would prevent multiple GCs.

Comment 1 Tim Buschtoens

2012-08-13 09:01:56 EDT

Fixed with commit 992a2148e29c70738c5c839e010720e61e766800.

Canvas DOM elements not have a "rwtObject" field pointing to the GC instance. This pattern will likely also be used to replace the "qx_Widget" fields. VMLCanvas now supports "arc". "rect" was already supported.