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Undo/redo try to preserve cameras

Browse source 
Addresses leozide/leocad#534

It does not work if
* the name of a camera is changed
* a camera does not exist after undo/redo
* multiple cameras have the same name

In order to address these remaining issues, one could add a unique ID
to all cameras in the model.
This commit is contained in:
Gerd Wachsmuth 2024-01-03 13:23:14 +01:00
parent b520fe0b6d
commit 81262d2f88
1 changed files with 27 additions and 0 deletions
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27
common/lc_model.cpp
View file

@ -1751,6 +1751,22 @@ void lcModel::LoadCheckPoint(lcModelHistoryEntry* CheckPoint)
// Remember the current step
const lcStep CurrentStep = mCurrentStep;
// Remember the camera names
std::vector<QString> CameraNames;
if (gMainWindow)
{
std::vector<lcView*> Views = lcView::GetModelViews(this);
CameraNames.resize( Views.size() );
for (unsigned int i = 0; i < Views.size(); i++)
{
lcCamera* Camera = Views[i]->GetCamera();
if (!Camera->IsSimple() && mCameras.FindIndex(Camera) != -1)
CameraNames[i] = Camera->GetName();
else
CameraNames[i] = "";
}
}
DeleteModel();
QBuffer Buffer(&CheckPoint->File);
@ -1761,6 +1777,17 @@ void lcModel::LoadCheckPoint(lcModelHistoryEntry* CheckPoint)
mCurrentStep = CurrentStep;
CalculateStep(CurrentStep);
// Reset the cameras
if (gMainWindow)
{
std::vector<lcView*> Views = lcView::GetModelViews(this);
for (unsigned int i = 0; i < CameraNames.size(); i++)
{
if (CameraNames[i] != "")
Views[i]->SetCamera(CameraNames[i]);
}
}
gMainWindow->UpdateTimeline(true, false);
gMainWindow->UpdateCameraMenu();
gMainWindow->UpdateCurrentStep();