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Bug 1608: Don't crash editing parameters of LV2 effect in a Chain

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This commit is contained in:
Paul Licameli 2017-08-01 11:17:17 -04:00
parent 40a4f89243
commit 560a1e88ed
1 changed files with 7 additions and 4 deletions
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11
src/effects/lv2/LV2Effect.cpp
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@ -1868,7 +1868,8 @@ bool LV2Effect::TransferDataToWindow()
if (ctrl.mToggle)
{
wxCheckBox *c = wxDynamicCast(mParent->FindWindow(ID_Toggles + p), wxCheckBox);
c->SetValue(ctrl.mVal > 0);
if (c)
c->SetValue(ctrl.mVal > 0);
}
else if (ctrl.mEnumeration) // Check before integer
{
@ -1887,17 +1888,19 @@ bool LV2Effect::TransferDataToWindow()
}
wxChoice *c = wxDynamicCast(mParent->FindWindow(ID_Choices + p), wxChoice);
c->SetSelection(s);
if (c)
c->SetSelection(s);
}
else if (ctrl.mInput)
{
ctrl.mTmp = ctrl.mVal * (ctrl.mSampleRate ? mSampleRate : 1.0);
SetSlider(mSliders[p], ctrl);
if (mSliders && mSliders[p])
SetSlider(mSliders[p], ctrl);
}
}
}
if (!mParent->TransferDataToWindow())
if (mParent && !mParent->TransferDataToWindow())
{
return false;
}