Files
create/src/Gui/ViewProviderGeometryObject.h
David Carter d6660f88ed Materials: Selectively apply appearances
Change the appearance only if the appearance hasn't been set explicitly.
A cached material appearance is used to see if the current appearance
matches the last material. It is also compared against an empty
material to see if the saved material value has been initialized.

This solves the problem of material changes overwriting appearance
changes
2024-10-28 21:49:45 -05:00

127 lines
4.7 KiB
C++

/***************************************************************************
* Copyright (c) 2006 Werner Mayer <wmayer[at]users.sourceforge.net> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 of the License, or (at your option) any later version. *
* *
* This library is distributed in the hope that it will be useful, *
* but WITHOUT ANY WARRANTY; without even the implied warranty of *
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
* GNU Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#ifndef GUI_VIEWPROVIDER_GEOMETRYOBJECT_H
#define GUI_VIEWPROVIDER_GEOMETRYOBJECT_H
#include "ViewProviderDragger.h"
#include <Inventor/lists/SoPickedPointList.h>
class SoPickedPointList;
class SoSwitch;
class SoSensor;
class SbVec2s;
class SoBaseColor;
namespace Gui
{
class SoFCSelection;
class SoFCBoundingBox;
class View3DInventorViewer;
/**
* The base class for all view providers that display geometric data, like mesh, point clouds and
* shapes.
* @author Werner Mayer
*/
class GuiExport ViewProviderGeometryObject: public ViewProviderDragger
{
PROPERTY_HEADER_WITH_OVERRIDE(Gui::ViewProviderGeometryObject);
public:
/// constructor.
ViewProviderGeometryObject();
/// destructor.
~ViewProviderGeometryObject() override;
// Display properties
App::PropertyPercent Transparency;
App::PropertyMaterialList ShapeAppearance; // May be different from material
App::PropertyBool BoundingBox;
App::PropertyBool Selectable;
/**
* Attaches the document object to this view provider.
*/
void attach(App::DocumentObject* pcObject) override;
void updateData(const App::Property*) override;
bool isSelectable() const override
{
return Selectable.getValue();
}
/**
* Returns a list of picked points from the geometry under \a getRoot().
* If \a pickAll is false (the default) only the intersection point closest to the camera will
* be picked, otherwise all intersection points will be picked.
*/
SoPickedPointList getPickedPoints(const SbVec2s& pos,
const View3DInventorViewer& viewer,
bool pickAll = false) const;
/**
* This method is provided for convenience and does basically the same as getPickedPoints()
* unless that only the closest point to the camera will be picked. \note It is in the response
* of the client programmer to delete the returned SoPickedPoint object.
*/
SoPickedPoint* getPickedPoint(const SbVec2s& pos, const View3DInventorViewer& viewer) const;
/** @name Edit methods */
//@{
virtual void showBoundingBox(bool);
//@}
/// Get the python wrapper for that ViewProvider
PyObject* getPyObject() override;
protected:
/// get called by the container whenever a property has been changed
void onChanged(const App::Property* prop) override;
void setSelectable(bool Selectable = true);
virtual unsigned long getBoundColor() const;
void handleChangedPropertyName(Base::XMLReader& reader,
const char* TypeName,
const char* PropName) override;
void setCoinAppearance(const App::Material& source);
private:
bool isSelectionEnabled() const;
protected:
SoMaterial* pcShapeMaterial {nullptr};
SoFCBoundingBox* pcBoundingBox {nullptr};
SoSwitch* pcBoundSwitch {nullptr};
SoBaseColor* pcBoundColor {nullptr};
App::Material materialAppearance;
};
} // namespace Gui
#endif // GUI_VIEWPROVIDER_GEOMETRYOBJECT_H