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</o:shapelayout></xml><![endif]--></head><body lang=FR link=blue vlink=purple><div class=WordSection1><p class=MsoNormal><span lang=EN-US style='color:#1F497D'>How to verify if the signal « feature added » is emitted from an add feature tool?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US style='color:#1F497D'><o:p> </o:p></span></p><div><div style='border:none;border-top:solid #B5C4DF 1.0pt;padding:3.0pt 0cm 0cm 0cm'><p class=MsoNormal><b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:FR'>De :</span></b><span style='font-size:10.0pt;font-family:"Tahoma","sans-serif";mso-fareast-language:FR'> qgis-developer-bounces@lists.osgeo.org [mailto:qgis-developer-bounces@lists.osgeo.org] <b>De la part de</b> Nejia<br><b>Envoyé :</b> mercredi 24 septembre 2014 16:09<br><b>À :</b> qgis-developer@lists.osgeo.org<br><b>Objet :</b> [Qgis-developer] crash with undo command<o:p></o:p></span></p></div></div><p class=MsoNormal><o:p> </o:p></p><p class=MsoNormal><span lang=EN-US>Hi,<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>I have a plugin that allows to change an attribute value of added feature to the selected value of a combo-box.<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>I change the attribute when the signal “featureAdded” is emmited (ie. Before the endEditCommand of “add feature” is called) so in this undo command we have in the order:<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l1 level1 lfo2'><![if !supportLists]><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'><span style='mso-list:Ignore'>1-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span dir=LTR></span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>QgsVectorLayerUndoCommandAddFeature<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l1 level1 lfo2'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>2-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span dir=LTR></span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>QgsVectorLayerUndoCommandChangeAttribute</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>If we undo “add feature” command it must call undo() on all child commands in reverse order, but when I debug in QGIS it do it in the order not in reverse order ie. It call:<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo4'><![if !supportLists]><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'><span style='mso-list:Ignore'>1-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span dir=LTR></span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>QgsVectorLayerUndoCommandAddFeature::undo()<o:p></o:p></span></p><p class=MsoListParagraph style='text-indent:-18.0pt;mso-list:l0 level1 lfo4'><![if !supportLists]><span lang=EN-US><span style='mso-list:Ignore'>2-<span style='font:7.0pt "Times New Roman"'> </span></span></span><![endif]><span dir=LTR></span><span lang=EN-US style='font-size:10.0pt;font-family:"Courier New"'>QgsVectorLayerUndoCommandChangeAttribute::undo()</span><span lang=EN-US><o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>That’s why Qgis crash when I undo “add feature” command<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>An explanation for this?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Is there any way to knew if the signal “feature added” is emitted when a new feature is added not from commitChanges(), redoEditCommand() and undoEditCommand()?<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US><o:p> </o:p></span></p><p class=MsoNormal><span lang=EN-US>Thank you<o:p></o:p></span></p><p class=MsoNormal><span lang=EN-US>Nejia<o:p></o:p></span></p><p class=MsoNormal><o:p> </o:p></p></div></body></html>