Eclipse Community Forums: Standard Widget Toolkit (SWT)

Help

Home

Home » Eclipse Projects » Standard Widget Toolkit (SWT) » GC.drawText throws Pango errors

Show: Today's Messages :: Show Polls :: Message Navigator

GC.drawText throws Pango errors [message #1699207]

Mon, 22 June 2015 15:11

Cody Crow

Messages: 1
Registered: June 2015

Junior Member

(SWT:18911): Pango-CRITICAL **: pango_font_description_set_size: assertion 'size >= 0' failed

(SWT:18911): Pango-WARNING **: failed to create cairo scaled font, expect ugly output. the offending font is 'Liberation Sans Bold Italic'

(SWT:18911): Pango-WARNING **: font_face status is: out of memory

(SWT:18911): Pango-WARNING **: scaled_font status is: out of memory

(SWT:18911): Pango-WARNING **: shaping failure, expect ugly output. shape-engine='BasicEngineFc', font='Liberation Sans Bold Italic', text='48'

Hi all. I'm trying to draw some text on a canvas, and when I go to draw the text, I am getting the errors above and the text is rendered as square boxes. I draw other text in this program on a canvas, and that works fine every time, but I have no idea why I could be having this problem. Does anyone have any idea?

Report message to a moderator

Re: GC.drawText throws Pango errors [message #1699345 is a reply to message #1699207]

Tue, 23 June 2015 13:53

Brian de Alwis

Messages: 877
Registered: January 2012

Senior Member

The 'out of memory' errors makes me wonder if you're running out of resources -- too many fonts/images/widgets etc. Try putting your snippet in a standalone program and see if it works. If it works in the standalone then look at the SWT Sleak tool to track down the errant allocations.

Brian.

Report message to a moderator

Previous Topic:	Eclipse 4.2.2 crashes on Power RHEL 7 with JVM error 160
Next Topic:	JavaFX the easiest way to get a HTML5 browser in a SWT app?

Goto Forum:

-=] Back to Top [=-

[ Syndicate this forum (XML) ] [

]

Current Time: Mon Jan 25 09:05:19 GMT 2021

.:: Contact :: Home ::.

Breadcrumbs

Sign up to our Newsletter