Critical warning when dragging a selection handle

Bug #1652954 reported by su_v on 2016-12-28
This bug affects 1 person
Affects Status Importance Assigned to Milestone

Bug Description

In current lp:inkscape (trunk) and lp:inkscape/0.92.x, every time a selection handle (to resize, rotate or skew a selection) is grabbed and dragged, there is a critical warning on the console:

** (inkscape:52580): CRITICAL **: void Inkscape::SelTrans::grab(const Geom::Point &, gdouble, gdouble, bool, bool): assertion '!_grabbed' failed

Steps to reproduce:
1) launch inkscape trunk or 0.92.x
2) draw a rectangle
3) drag one of the selection handles
   (e.g. to stretch or rotate the rectangle)

Based on tests with archived 0.92.x builds (on OS X 10.7.5):
- not reproduced with rev <= 15237,
- reproduced with rev >= 15238;
these warnings seem to have been exposed with the backport of r15293 from trunk in r15238:

Revision 15293: Add triangle knot.

Reproduced with lp:inkscape r15369 on Ubuntu 14.04 and lp:inkscape/0.92.x r15284 on OS X 10.7.5.

su_v (suv-lp) on 2016-12-28
description: updated
Alvin Penner (apenner) wrote :

confirmed on Windows 10, Inkscape 0.92pre4 15278 (32 bit exe)

Changed in inkscape:
status: New → Confirmed
su_v (suv-lp) on 2016-12-28
summary: - Crticial warning when dragging a selection handle
+ Critical warning when dragging a selection handle
Jabiertxof (jabiertxof) wrote :

Attached a fix proposal

Changed in inkscape:
assignee: nobody → Jabiertxof (jabiertxof)
su_v (suv-lp) wrote :

Patch tested successfully with lp:inkscape/0.92.x r15284 on OS X 10.7.5 (warnings are gone, AFAICT all transformations of a selection with the mouse by dragging a selection handle work as before; dragging mesh triangle knots is ok, using transformation handles in the node tool context is ok too).

su_v (suv-lp) wrote :

@JazzyNico - could you please milestone to 0.92? It would be great if this small fix could land in the stable release branch before the final 0.92 is cut.

jazzynico (jazzynico) on 2016-12-28
Changed in inkscape:
milestone: none → 0.92
status: Confirmed → In Progress
importance: Undecided → Critical
importance: Critical → Low
Jabiertxof (jabiertxof) wrote :

Fixed in 0.92.x r.15288 and in trunk in r15371

Changed in inkscape:
status: In Progress → Fix Released
jazzynico (jazzynico) on 2016-12-29
Changed in inkscape:
milestone: 0.92 → none
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