Bug report #11371: Map Composer: group + move + ungroup + undo = crash - QGIS Application - QGIS Issue Tracking

Bug report #11371

Map Composer: group + move + ungroup + undo = crash

Added by Roy Roge about 10 years ago. Updated over 8 years ago.

Status:	Closed
Priority:	High
Assignee:	Sandro Santilli
Category:	Map Composer/Printing
Affected QGIS version:	2.14.3	Regression?:	No
Operating System:	Windows , Linux	Easy fix?:	No
Pull Request or Patch supplied:	Yes	Resolution:
Crashes QGIS or corrupts data:	Yes	Copied to github as #:	19662

Description

Using the map composer add two rectangles,
group them, move the grouped, ungroup them,
click the undo arrow, you get the program to crash,

thanks,

Roy.

Related issues

Associated revisions

Revision a211c982
Added by Sandro Santilli over 8 years ago

Allow to undo/redo composer grouping/ungrouping

Fixes #11371 (crash on ungrouping after moving the group) and more
undo/redo related issues.

Enable pending test for the crash (now passing) and add many more
undo/redo related ones (including signals testing).

Includes a new QgsGroupUngroupItemsCommand class
and its SIP bindings.

Revision df8dca2e
Added by Sandro Santilli over 8 years ago

Fix crash in composer on ungrouping after group move.

Closes #11371.

Adds support for undo/redo grouping/ungrouping operations.

Enable pending test for the crash (now passing) and add many more
undo/redo related ones (including signals testing).

Includes a new QgsGroupUngroupItemsCommand class
and its SIP bindings.

History

#1 Updated by Giovanni Manghi about 10 years ago

Priority changed from High to Severe/Regression

on qgis 2.4 seems ok. Crash confirmed on master.

#2 Updated by Nyall Dawson about 10 years ago

Priority changed from Severe/Regression to High

Actually 2.4 and below are affected too, so reducing this from a blocker to high. It's a serious issue though.

#3 Updated by Sandro Santilli almost 9 years ago

Status changed from Open to Feedback

I cannot reproduce on current master (2.14-pre, 69cb0c4ed3174946c82e32dad4af5a12275079fc) -- can anyone ?

#4 Updated by Nyall Dawson almost 9 years ago

Status changed from Feedback to Open

Still present. I can't fix this one without major api breaks.

#5 Updated by Sandro Santilli over 8 years ago

I still cannot reproduce with 2.16-dev d1cac84, how do you "group"/"ungroup" ? I'm using the "select/move" tool for that, clicking outside the group to "ungroup", but I suspect it's not what you mean...

#6 Updated by Sandro Santilli over 8 years ago

Ah, found the "group" and "ungroup" button, crash reproduced in d1cac842d323ffb13a606e8d598dd0d8af4ade72 (2.16-dev).

#7 Updated by Sandro Santilli over 8 years ago

Operating System changed from windows linux to Windows , Linux
Affected QGIS version changed from master to 2.14.3
Target version set to Version 2.14
Assignee set to Sandro Santilli
Status changed from Open to In Progress

Also happens with 2.14.3 LTR

#8 Updated by Sandro Santilli over 8 years ago

For the record: this ticket already has an ecoded test, just #if-0'ed out, in tests/src/core/testqgscomposergroup.cpp

#9 Updated by Sandro Santilli over 8 years ago

The problem is that an object (the group) is removed while it would be needed to undo the grouping itself.
Besides, the group-move is not pushed to the undo stack so a quick fix of the crash done by avoiding the destruction of the group results in undo operation never undoing a grouping or ungrouping.