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Sketcher/BackEdit: Add camera sensor to VP that detects side and redraw if side changed

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This commit is contained in:
0penBrain
2022-08-30 16:18:38 +02:00
committed by wwmayer
parent 028517323c
commit 36fccfdd08
2 changed files with 45 additions and 1 deletions
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32
src/Mod/Sketcher/Gui/ViewProviderSketch.cpp
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@@ -283,7 +283,8 @@ ViewProviderSketch::ViewProviderSketch()
listener(nullptr),
editCoinManager(nullptr),
pObserver(std::make_unique<ViewProviderSketch::ParameterObserver>(*this)),
sketchHandler(nullptr)
sketchHandler(nullptr),
viewOrientationFactor(1)
{
PartGui::ViewProviderAttachExtension::initExtension(this);
@@ -312,6 +313,8 @@ ViewProviderSketch::ViewProviderSketch()
//rubberband selection
rubberband = std::make_unique<Gui::Rubberband>();
cameraSensor.setFunction(&ViewProviderSketch::camSensCB);
}
ViewProviderSketch::~ViewProviderSketch()
@@ -3112,16 +3115,43 @@ void ViewProviderSketch::setEditViewer(Gui::View3DInventorViewer* viewer, int Mo
rubberband->setViewer(viewer);
viewer->setupEditingRoot();
cameraSensor.setData(new VPCam{this, viewer->getSoRenderManager()->getCamera()});
cameraSensor.attach(&viewer->getSoRenderManager()->getCamera()->orientation);
}
void ViewProviderSketch::unsetEditViewer(Gui::View3DInventorViewer* viewer)
{
delete static_cast<VPCam*>(cameraSensor.getData());
cameraSensor.detach();
viewer->removeGraphicsItem(rubberband.get());
viewer->setEditing(false);
SoNode* root = viewer->getSceneGraph();
static_cast<Gui::SoFCUnifiedSelection*>(root)->selectionRole.setValue(true);
}
void ViewProviderSketch::camSensCB(void *data, SoSensor *)
{
VPCam *proxyVPCam = static_cast<VPCam*>(data);
auto vp = proxyVPCam->vp;
auto cam = proxyVPCam->cam;
auto rotSk = Base::Rotation(vp->getDocument()->getEditingTransform()); //sketch orientation
auto rotc = cam->orientation.getValue().getValue();
auto rotCam = Base::Rotation(rotc[0], rotc[1], rotc[2], rotc[3]); // camera orientation (needed because float to double conversion)
// Is camera in the same hemisphere as positive sketch normal ?
auto orientation = (rotCam.invert()*rotSk).multVec(Base::Vector3d(0,0,1));
auto tmpFactor = orientation.z<0?-1:1;
if (tmpFactor != vp->viewOrientationFactor) { // redraw only if viewing side changed
Base::Console().Log("Switching side, now %s, redrawing\n", tmpFactor < 0 ? "back" : "front");
vp->viewOrientationFactor = tmpFactor;
vp->draw();
}
}
int ViewProviderSketch::getPreselectPoint() const
{
if (isInEditMode())