/
ViewProviderPythonFeature.h
619 lines (572 loc) · 22.9 KB
/
ViewProviderPythonFeature.h
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/***************************************************************************
* 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_VIEWPROVIDERPYTHONFEATURE_H
#define GUI_VIEWPROVIDERPYTHONFEATURE_H
#include <App/Application.h>
#include <App/AutoTransaction.h>
#include <Gui/ViewProviderGeometryObject.h>
#include <Gui/Document.h>
#include <App/PropertyPythonObject.h>
#include <App/DynamicProperty.h>
#include <App/FeaturePython.h>
class SoSensor;
class SoDragger;
class SoNode;
namespace Gui {
class GuiExport ViewProviderPythonFeatureImp
{
public:
enum ValueT {
NotImplemented = 0, // not handled
Accepted = 1, // handled and accepted
Rejected = 2 // handled and rejected
};
/// constructor.
ViewProviderPythonFeatureImp(ViewProviderDocumentObject*, App::PropertyPythonObject &);
/// destructor.
~ViewProviderPythonFeatureImp();
// Returns the icon
QIcon getIcon() const;
bool claimChildren(std::vector<App::DocumentObject*>&) const;
ValueT useNewSelectionModel() const;
ValueT getElementPicked(const SoPickedPoint *pp, std::string &subname) const;
bool getElement(const SoDetail *det, std::string &) const;
bool getDetail(const char*, SoDetail *&det) const;
ValueT getDetailPath(const char *name, SoFullPath *path, bool append, SoDetail *&det) const;
std::vector<Base::Vector3d> getSelectionShape(const char* Element) const;
ValueT setEdit(int ModNum);
ValueT unsetEdit(int ModNum);
ValueT setEditViewer(View3DInventorViewer*, int ModNum);
ValueT unsetEditViewer(View3DInventorViewer*);
ValueT doubleClicked(void);
bool setupContextMenu(QMenu* menu);
/** @name Update data methods*/
//@{
void attach(App::DocumentObject *pcObject);
void updateData(const App::Property*);
void onChanged(const App::Property* prop);
void startRestoring();
void finishRestoring();
ValueT onDelete(const std::vector<std::string> & sub);
ValueT canDelete(App::DocumentObject *obj) const;
//@}
/** @name Display methods */
//@{
/// Returns true if the icon must always appear enabled in the tree view
ValueT isShow() const;
/// get the default display mode
bool getDefaultDisplayMode(std::string &mode) const;
/// returns a list of all possible modes
std::vector<std::string> getDisplayModes(void) const;
/// set the display mode
std::string setDisplayMode(const char* ModeName);
//@}
ValueT canRemoveChildrenFromRoot() const;
/** @name Drag and drop */
//@{
/// Returns true if the view provider generally supports dragging objects
ValueT canDragObjects() const;
/// Check whether the object can be removed from the view provider by drag and drop
ValueT canDragObject(App::DocumentObject*) const;
/// Starts to drag the object
ValueT dragObject(App::DocumentObject*);
/// Returns true if the view provider generally accepts dropping of objects
ValueT canDropObjects() const;
/// Check whether the object can be dropped to the view provider by drag and drop
ValueT canDropObject(App::DocumentObject*) const;
/// If the dropped object type is accepted the object will be added as child
ValueT dropObject(App::DocumentObject*);
/** Return false to force drop only operation for a give object*/
ValueT canDragAndDropObject(App::DocumentObject*) const;
/** Query object dropping with full quanlified name */
ValueT canDropObjectEx(App::DocumentObject *obj, App::DocumentObject *,
const char *,const std::vector<std::string> &elements) const;
/** Add an object with full quanlified name to the view provider by drag and drop */
bool dropObjectEx(App::DocumentObject *obj, App::DocumentObject *,
const char *, const std::vector<std::string> &elements, std::string &ret);
ValueT replaceObject(App::DocumentObject *, App::DocumentObject *);
//@}
bool getLinkedViewProvider(ViewProviderDocumentObject *&res,
std::string *subname, bool recursive) const;
ValueT canAddToSceneGraph() const;
bool getDropPrefix(std::string &prefix) const;
private:
ViewProviderDocumentObject* object;
App::PropertyPythonObject &Proxy;
bool has__object__;
#define FC_PY_VIEW_OBJECT \
FC_PY_ELEMENT(getIcon) \
FC_PY_ELEMENT(claimChildren) \
FC_PY_ELEMENT(useNewSelectionModel) \
FC_PY_ELEMENT(getElementPicked) \
FC_PY_ELEMENT(getElement) \
FC_PY_ELEMENT(getDetail) \
FC_PY_ELEMENT(getDetailPath) \
FC_PY_ELEMENT(getSelectionShape) \
FC_PY_ELEMENT(setEdit) \
FC_PY_ELEMENT(unsetEdit) \
FC_PY_ELEMENT(setEditViewer) \
FC_PY_ELEMENT(unsetEditViewer) \
FC_PY_ELEMENT(doubleClicked) \
FC_PY_ELEMENT(setupContextMenu) \
FC_PY_ELEMENT(attach) \
FC_PY_ELEMENT(updateData) \
FC_PY_ELEMENT(onChanged) \
FC_PY_ELEMENT(startRestoring) \
FC_PY_ELEMENT(finishRestoring) \
FC_PY_ELEMENT(onDelete) \
FC_PY_ELEMENT(canDelete) \
FC_PY_ELEMENT(isShow) \
FC_PY_ELEMENT(getDefaultDisplayMode) \
FC_PY_ELEMENT(getDisplayModes) \
FC_PY_ELEMENT(setDisplayMode) \
FC_PY_ELEMENT(canRemoveChildrenFromRoot) \
FC_PY_ELEMENT(canDragObjects) \
FC_PY_ELEMENT(canDragObject) \
FC_PY_ELEMENT(dragObject) \
FC_PY_ELEMENT(canDropObjects) \
FC_PY_ELEMENT(canDropObject) \
FC_PY_ELEMENT(dropObject) \
FC_PY_ELEMENT(canDragAndDropObject) \
FC_PY_ELEMENT(canDropObjectEx) \
FC_PY_ELEMENT(dropObjectEx) \
FC_PY_ELEMENT(canAddToSceneGraph) \
FC_PY_ELEMENT(getDropPrefix) \
FC_PY_ELEMENT(replaceObject) \
FC_PY_ELEMENT(getLinkedViewProvider) \
#undef FC_PY_ELEMENT
#define FC_PY_ELEMENT(_name) FC_PY_ELEMENT_DEFINE(_name)
FC_PY_VIEW_OBJECT
#undef FC_PY_ELEMENT
#define FC_PY_ELEMENT(_name) FC_PY_ELEMENT_FLAG(_name)
enum Flag {
FC_PY_VIEW_OBJECT
FlagMax,
};
typedef std::bitset<FlagMax> Flags;
mutable Flags _Flags;
public:
void init(PyObject *pyobj);
};
template <class ViewProviderT>
class ViewProviderPythonFeatureT : public ViewProviderT
{
PROPERTY_HEADER_WITH_OVERRIDE(Gui::ViewProviderPythonFeatureT<ViewProviderT>);
public:
/// constructor.
ViewProviderPythonFeatureT() : _attached(false) {
ADD_PROPERTY(Proxy,(Py::Object()));
imp = new ViewProviderPythonFeatureImp(this,Proxy);
}
/// destructor.
virtual ~ViewProviderPythonFeatureT() {
delete imp;
}
// Returns the icon
QIcon getIcon() const override {
QIcon icon = imp->getIcon();
if (icon.isNull())
icon = ViewProviderT::getIcon();
return icon;
}
std::vector<App::DocumentObject*> claimChildren() const override {
std::vector<App::DocumentObject *> res;
if(!imp->claimChildren(res))
return ViewProviderT::claimChildren();
return res;
}
/** @name Nodes */
//@{
virtual SoSeparator* getRoot() const override {
return ViewProviderT::getRoot();
}
virtual SoSeparator* getFrontRoot() const override {
return ViewProviderT::getFrontRoot();
}
// returns the root node of the Provider (3D)
virtual SoSeparator* getBackRoot() const override {
return ViewProviderT::getBackRoot();
}
//@}
/** @name Selection handling */
//@{
virtual bool useNewSelectionModel() const override {
switch(imp->useNewSelectionModel()) {
case ViewProviderPythonFeatureImp::Accepted:
return true;
case ViewProviderPythonFeatureImp::Rejected:
return false;
default:
return ViewProviderT::useNewSelectionModel();
}
}
virtual bool getElementPicked(const SoPickedPoint *pp, std::string &subname) const override {
auto ret = imp->getElementPicked(pp,subname);
if(ret == ViewProviderPythonFeatureImp::NotImplemented)
return ViewProviderT::getElementPicked(pp,subname);
else if(ret == ViewProviderPythonFeatureImp::Accepted)
return true;
return false;
}
virtual std::string getElement(const SoDetail *det) const override {
std::string name;
if(!imp->getElement(det,name))
return ViewProviderT::getElement(det);
return name;
}
virtual SoDetail* getDetail(const char* name) const override {
SoDetail *det = 0;
if(imp->getDetail(name,det))
return det;
return ViewProviderT::getDetail(name);
}
virtual bool getDetailPath(const char *name, SoFullPath *path, bool append,SoDetail *&det) const override {
auto ret = imp->getDetailPath(name,path,append,det);
if(ret == ViewProviderPythonFeatureImp::NotImplemented)
return ViewProviderT::getDetailPath(name,path,append,det);
return ret == ViewProviderPythonFeatureImp::Accepted;
}
virtual std::vector<Base::Vector3d> getSelectionShape(const char* Element) const override {
return ViewProviderT::getSelectionShape(Element);
};
//@}
/** @name Update data methods*/
//@{
virtual void attach(App::DocumentObject *obj) override {
// delay loading of the actual attach() method because the Python
// view provider class is not attached yet
ViewProviderT::pcObject = obj;
}
virtual void updateData(const App::Property* prop) override {
imp->updateData(prop);
ViewProviderT::updateData(prop);
}
virtual void getTaskViewContent(std::vector<Gui::TaskView::TaskContent*>& c) const override {
ViewProviderT::getTaskViewContent(c);
}
virtual bool onDelete(const std::vector<std::string> & sub) override {
switch(imp->onDelete(sub)) {
case ViewProviderPythonFeatureImp::Accepted:
return true;
case ViewProviderPythonFeatureImp::Rejected:
return false;
default:
return ViewProviderT::onDelete(sub);
}
}
virtual bool canDelete(App::DocumentObject *obj) const override {
switch(imp->canDelete(obj)) {
case ViewProviderPythonFeatureImp::Accepted:
return true;
case ViewProviderPythonFeatureImp::Rejected:
return false;
default:
return ViewProviderT::canDelete(obj);
}
}
//@}
/** @name Restoring view provider from document load */
//@{
virtual void startRestoring() override {
ViewProviderT::startRestoring();
imp->startRestoring();
}
virtual void finishRestoring() override {
imp->finishRestoring();
ViewProviderT::finishRestoring();
}
//@}
/** @name Drag and drop */
//@{
/// Returns true if the view provider generally supports dragging objects
virtual bool canDragObjects() const override {
switch (imp->canDragObjects()) {
case ViewProviderPythonFeatureImp::Accepted:
return true;
case ViewProviderPythonFeatureImp::Rejected:
return false;
default:
return ViewProviderT::canDragObjects();
}
}
/// Check whether the object can be removed from the view provider by drag and drop
virtual bool canDragObject(App::DocumentObject* obj) const override {
switch (imp->canDragObject(obj)) {
case ViewProviderPythonFeatureImp::Accepted:
return true;
case ViewProviderPythonFeatureImp::Rejected:
return false;
default:
return ViewProviderT::canDragObject(obj);
}
}
/// Starts to drag the object
virtual void dragObject(App::DocumentObject* obj) override {
App::AutoTransaction committer;
switch (imp->dragObject(obj)) {
case ViewProviderPythonFeatureImp::Accepted:
case ViewProviderPythonFeatureImp::Rejected:
return;
default:
return ViewProviderT::dragObject(obj);
}
}
/// Returns true if the view provider generally accepts dropping of objects
virtual bool canDropObjects() const override {
switch (imp->canDropObjects()) {
case ViewProviderPythonFeatureImp::Accepted:
return true;
case ViewProviderPythonFeatureImp::Rejected:
return false;
default:
return ViewProviderT::canDropObjects();
}
}
/// Check whether the object can be dropped to the view provider by drag and drop
virtual bool canDropObject(App::DocumentObject* obj) const override {
switch (imp->canDropObject(obj)) {
case ViewProviderPythonFeatureImp::Accepted:
return true;
case ViewProviderPythonFeatureImp::Rejected:
return false;
default:
return ViewProviderT::canDropObject(obj);
}
}
/// If the dropped object type is accepted the object will be added as child
virtual void dropObject(App::DocumentObject* obj) override {
App::AutoTransaction committer;
switch (imp->dropObject(obj)) {
case ViewProviderPythonFeatureImp::Accepted:
case ViewProviderPythonFeatureImp::Rejected:
return;
default:
return ViewProviderT::dropObject(obj);
}
}
/** Return false to force drop only operation for a give object*/
virtual bool canDragAndDropObject(App::DocumentObject *obj) const override {
switch (imp->canDragAndDropObject(obj)) {
case ViewProviderPythonFeatureImp::Accepted:
return true;
case ViewProviderPythonFeatureImp::Rejected:
return false;
default:
return ViewProviderT::canDragAndDropObject(obj);
}
}
virtual bool canDropObjectEx(App::DocumentObject *obj, App::DocumentObject *owner,
const char *subname, const std::vector<std::string> &elements) const override
{
switch (imp->canDropObjectEx(obj,owner,subname,elements)) {
case ViewProviderPythonFeatureImp::Accepted:
return true;
case ViewProviderPythonFeatureImp::Rejected:
return false;
default:
return ViewProviderT::canDropObjectEx(obj,owner,subname,elements);
}
}
/** Add an object with full quanlified name to the view provider by drag and drop */
virtual std::string dropObjectEx(App::DocumentObject *obj, App::DocumentObject *owner,
const char *subname, const std::vector<std::string> &elements) override
{
App::AutoTransaction committer;
std::string ret;
if(!imp->dropObjectEx(obj,owner,subname,elements,ret))
ret = ViewProviderT::dropObjectEx(obj,owner,subname,elements);
return ret;
}
//@}
/** @name Display methods */
//@{
/// Returns true if the icon must always appear enabled in the tree view
virtual bool isShow() const override {
switch(imp->isShow()) {
case ViewProviderPythonFeatureImp::Accepted:
return true;
case ViewProviderPythonFeatureImp::Rejected:
return false;
default:
return ViewProviderT::isShow();
}
}
/// get the default display mode
virtual const char* getDefaultDisplayMode() const override {
defaultMode.clear();
if(imp->getDefaultDisplayMode(defaultMode))
return defaultMode.c_str();
return ViewProviderT::getDefaultDisplayMode();
}
/// returns a list of all possible modes
virtual std::vector<std::string> getDisplayModes(void) const override {
std::vector<std::string> modes = ViewProviderT::getDisplayModes();
std::vector<std::string> more_modes = imp->getDisplayModes();
modes.insert(modes.end(), more_modes.begin(), more_modes.end());
return modes;
}
/// set the display mode
virtual void setDisplayMode(const char* ModeName) override {
std::string mask = imp->setDisplayMode(ModeName);
ViewProviderT::setDisplayMaskMode(mask.c_str());
ViewProviderT::setDisplayMode(ModeName);
}
//@}
virtual bool canRemoveChildrenFromRoot() const override {
switch(imp->canRemoveChildrenFromRoot()) {
case ViewProviderPythonFeatureImp::NotImplemented:
return ViewProviderT::canRemoveChildrenFromRoot();
case ViewProviderPythonFeatureImp::Accepted:
return true;
default:
return false;
}
}
PyObject* getPyObject() override {
return ViewProviderT::getPyObject();
}
virtual bool canAddToSceneGraph() const override {
switch(imp->canAddToSceneGraph()) {
case ViewProviderPythonFeatureImp::Accepted:
return true;
case ViewProviderPythonFeatureImp::Rejected:
return false;
default:
return ViewProviderT::canAddToSceneGraph();
}
}
protected:
virtual void onChanged(const App::Property* prop) override {
if (prop == &Proxy) {
imp->init(Proxy.getValue().ptr());
if (ViewProviderT::pcObject && !Proxy.getValue().is(Py::_None())) {
if (!_attached) {
_attached = true;
imp->attach(ViewProviderT::pcObject);
ViewProviderT::attach(ViewProviderT::pcObject);
// needed to load the right display mode after they're known now
ViewProviderT::DisplayMode.touch();
ViewProviderT::setOverrideMode(viewerMode);
}
if(!this->testStatus(Gui::isRestoring) &&
ViewProviderT::canAddToSceneGraph() &&
!imp->canAddToSceneGraph())
{
this->getDocument()->toggleInSceneGraph(this);
}
ViewProviderT::updateView();
}
}
imp->onChanged(prop);
ViewProviderT::onChanged(prop);
}
/// is called by the document when the provider goes in edit mode
virtual bool setEdit(int ModNum) override
{
switch (imp->setEdit(ModNum)) {
case ViewProviderPythonFeatureImp::Accepted:
return true;
case ViewProviderPythonFeatureImp::Rejected:
return false;
default:
return ViewProviderT::setEdit(ModNum);
}
}
/// is called when you lose the edit mode
virtual void unsetEdit(int ModNum) override
{
switch (imp->unsetEdit(ModNum)) {
case ViewProviderPythonFeatureImp::Accepted:
return;
case ViewProviderPythonFeatureImp::Rejected:
default:
return ViewProviderT::unsetEdit(ModNum);
}
}
virtual void setEditViewer(View3DInventorViewer *viewer, int ModNum) override {
if(!imp->setEditViewer(viewer,ModNum))
ViewProviderT::setEditViewer(viewer,ModNum);
}
virtual void unsetEditViewer(View3DInventorViewer *viewer) override {
if(!imp->unsetEditViewer(viewer))
ViewProviderT::unsetEditViewer(viewer);
}
virtual std::string getDropPrefix() const override {
std::string prefix;
if(!imp->getDropPrefix(prefix))
return ViewProviderT::getDropPrefix();
return prefix;
}
virtual int replaceObject(App::DocumentObject *oldObj, App::DocumentObject *newObj) override {
App::AutoTransaction committer;
switch (imp->replaceObject(oldObj,newObj)) {
case ViewProviderPythonFeatureImp::Accepted:
return 1;
case ViewProviderPythonFeatureImp::Rejected:
return 0;
default:
return ViewProviderT::replaceObject(oldObj,newObj);
}
}
virtual ViewProviderDocumentObject *getLinkedViewProvider(
std::string *subname=0, bool recursive=false) const override{
ViewProviderDocumentObject *res = 0;
if(!imp->getLinkedViewProvider(res, subname, recursive))
res = ViewProviderT::getLinkedViewProvider(subname,recursive);
return res;
}
public:
virtual void setupContextMenu(QMenu* menu, QObject* recipient, const char* member) override
{
if(!imp->setupContextMenu(menu))
ViewProviderT::setupContextMenu(menu, recipient, member);
}
protected:
virtual bool doubleClicked(void) override
{
App::AutoTransaction committer;
switch (imp->doubleClicked()) {
case ViewProviderPythonFeatureImp::Accepted:
return true;
case ViewProviderPythonFeatureImp::Rejected:
return false;
default:
return ViewProviderT::doubleClicked();
}
}
virtual void setOverrideMode(const std::string &mode) override
{
ViewProviderT::setOverrideMode(mode);
viewerMode = mode;
}
private:
ViewProviderPythonFeatureImp* imp;
App::PropertyPythonObject Proxy;
mutable std::string defaultMode;
std::string viewerMode;
bool _attached;
};
// Special Feature-Python classes
typedef ViewProviderPythonFeatureT<ViewProviderDocumentObject> ViewProviderPythonFeature;
typedef ViewProviderPythonFeatureT<ViewProviderGeometryObject> ViewProviderPythonGeometry;
} // namespace Gui
#endif // GUI_VIEWPROVIDERPYTHONFEATURE_H