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Fix crash in SelectedLayers::displace() when layerDelta is out of bounds

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This commit is contained in:
David Capello 2016-08-23 13:50:35 -03:00
parent b4d423051e
commit 356d88b413
1 changed files with 19 additions and 1 deletions
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20
src/doc/selected_layers.cpp
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@ -81,7 +81,13 @@ void SelectedLayers::selectAllLayers(LayerGroup* group)
void SelectedLayers::displace(layer_t layerDelta)
{
// Do nothing case
if (layerDelta == 0)
return;
const SelectedLayers original = *this;
retry:;
clear();
for (auto it : original) {
@ -97,8 +103,20 @@ void SelectedLayers::displace(layer_t layerDelta)
}
}
if (layer)
if (layer) {
insert(layer);
}
// If some layer is outside the range it means that the delta is
// too big (out of bounds), we reduce the delta and try again the
// whole process.
else {
layerDelta -= SGN(layerDelta);
if (layerDelta == 0) {
m_set = original.m_set;
break;
}
goto retry;
}
}
}