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Sketcher: [skip ci] fix segmentation fault in ViewProviderSketch::drawConstraintIcons()

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For more details see: https://forum.freecadweb.org/viewtopic.php?f=19&t=54193
This commit is contained in:
wmayer
2021-01-11 15:31:41 +01:00
parent ddaa29d114
commit 6b3936c8b8
1 changed files with 10 additions and 7 deletions
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17
src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
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@@ -3379,6 +3379,7 @@ void ViewProviderSketch::drawConstraintIcons()
// Find the Constraint Icon SoImage Node
SoSeparator *sep = static_cast<SoSeparator *>(edit->constrGroup->getChild(constrId));
int numChildren = sep->getNumChildren();
SbVec3f absPos;
// Somewhat hacky - we use SoZoomTranslations for most types of icon,
@@ -3442,14 +3443,16 @@ void ViewProviderSketch::drawConstraintIcons()
// So, to get the position of the second icon, we add the two translations together
//
// See note ~30 lines up.
translationPtr = static_cast<SoTranslation *>(sep->getChild(CONSTRAINT_SEPARATOR_INDEX_SECOND_TRANSLATION));
if(dynamic_cast<SoZoomTranslation *>(translationPtr))
thisIcon.position += static_cast<SoZoomTranslation *>(translationPtr)->abPos.getValue();
else
thisIcon.position += translationPtr->translation.getValue();
if (numChildren > CONSTRAINT_SEPARATOR_INDEX_SECOND_CONSTRAINTID) {
translationPtr = static_cast<SoTranslation *>(sep->getChild(CONSTRAINT_SEPARATOR_INDEX_SECOND_TRANSLATION));
if(dynamic_cast<SoZoomTranslation *>(translationPtr))
thisIcon.position += static_cast<SoZoomTranslation *>(translationPtr)->abPos.getValue();
else
thisIcon.position += translationPtr->translation.getValue();
thisIcon.destination = dynamic_cast<SoImage *>(sep->getChild(CONSTRAINT_SEPARATOR_INDEX_SECOND_ICON));
thisIcon.infoPtr = static_cast<SoInfo *>(sep->getChild(CONSTRAINT_SEPARATOR_INDEX_SECOND_CONSTRAINTID));
thisIcon.destination = dynamic_cast<SoImage *>(sep->getChild(CONSTRAINT_SEPARATOR_INDEX_SECOND_ICON));
thisIcon.infoPtr = static_cast<SoInfo *>(sep->getChild(CONSTRAINT_SEPARATOR_INDEX_SECOND_CONSTRAINTID));
}
}
else {
if ((*it)->Name.empty())