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Bug 119491

Summary:	dangerous uses of "new GC(Display)"
Product:	[Eclipse Project] JDT	Reporter:	Andre Weinand <andre_weinand>
Component:	Text	Assignee:	JDT-Text-Inbox <jdt-text-inbox>
Status:	VERIFIED FIXED	QA Contact:
Severity:	major
Priority:	P3
Version:	3.2
Target Milestone:	3.2 M4
Hardware:	All
OS:	All
Whiteboard:

Description Andre Weinand

2005-12-06 15:19:26 EST

a "new GC(Display)" is a very expensive operation on some platforms because it has to create an overlay window for the whole screen to allow for fullscreen drawing.

If the GC is not used for fullscreen drawing but only for getting some FontMetrics, it should be replaced by a "new GC(Shell)" or better by a "new GC(Control)".

See bug #38528 for details.

I've found this occurrence in JDT/UI:

CodeAssistConfigurationBlockInProgress.computeWidth(...)

Comment 1 Dani Megert

2005-12-08 04:15:58 EST

Fixed in HEAD.

Comment 2 Tobias Widmer

2005-12-13 06:04:28 EST

Verified using I20051213-0010