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create/src/Mod/Drawing/Gui/AppDrawingGuiPy.cpp
2025-03-22 11:38:48 -05:00

243 lines
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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 *
* *
***************************************************************************/
#include "PreCompiled.h"
#ifndef _PreComp_
#include <sstream>
#include <QFileInfo>
#endif
#include <App/DocumentObjectPy.h>
#include <Base/Exception.h>
#include <Base/FileInfo.h>
#include <Base/Stream.h>
#include <Gui/BitmapFactory.h>
#include <Gui/MainWindow.h>
#include <Mod/Drawing/App/FeaturePage.h>
#include <Mod/Drawing/App/FeatureViewPart.h>
#include <Mod/Drawing/App/ProjectionAlgos.h>
#include <Mod/Part/App/PartFeature.h>
#include "DrawingView.h"
namespace DrawingGui
{
class Module: public Py::ExtensionModule<Module>
{
public:
Module()
: Py::ExtensionModule<Module>("DrawingGui")
{
add_varargs_method("open", &Module::open);
add_varargs_method("insert", &Module::importer);
add_varargs_method("export", &Module::exporter);
initialize("This module is the DrawingGui module."); // register with Python
}
virtual ~Module()
{}
private:
virtual Py::Object invoke_method_varargs(void* method_def, const Py::Tuple& args)
{
try {
return Py::ExtensionModule<Module>::invoke_method_varargs(method_def, args);
}
catch (const Base::Exception& e) {
throw Py::RuntimeError(e.what());
}
catch (const std::exception& e) {
throw Py::RuntimeError(e.what());
}
}
Py::Object open(const Py::Tuple& args)
{
char* Name;
if (!PyArg_ParseTuple(args.ptr(), "et", "utf-8", &Name)) {
throw Py::Exception();
}
std::string EncodedName = std::string(Name);
PyMem_Free(Name);
Base::FileInfo file(EncodedName.c_str());
if (file.hasExtension({"svg", "svgz"})) {
QString fileName = QString::fromUtf8(EncodedName.c_str());
// Displaying the image in a view
DrawingView* view = new DrawingView(nullptr, Gui::getMainWindow());
view->load(fileName);
view->setWindowIcon(Gui::BitmapFactory().pixmap("actions/drawing-landscape"));
QFileInfo fi(fileName);
view->setWindowTitle(fi.fileName());
view->resize(400, 300);
Gui::getMainWindow()->addWindow(view);
}
else {
throw Py::Exception(PyExc_IOError, "unknown filetype");
}
return Py::None();
}
Py::Object importer(const Py::Tuple& args)
{
char* Name;
const char* dummy;
if (!PyArg_ParseTuple(args.ptr(), "et|s", "utf-8", &Name, &dummy)) {
throw Py::Exception();
}
std::string EncodedName = std::string(Name);
PyMem_Free(Name);
Base::FileInfo file(EncodedName.c_str());
if (file.hasExtension({"svg", "svgz"})) {
QString fileName = QString::fromUtf8(EncodedName.c_str());
// Displaying the image in a view
DrawingView* view = new DrawingView(nullptr, Gui::getMainWindow());
view->load(fileName);
view->setWindowIcon(Gui::BitmapFactory().pixmap("actions/drawing-landscape"));
QFileInfo fi(fileName);
view->setWindowTitle(fi.fileName());
view->resize(400, 300);
Gui::getMainWindow()->addWindow(view);
}
else {
throw Py::Exception(PyExc_IOError, "unknown filetype");
}
return Py::None();
}
Py::Object exporter(const Py::Tuple& args)
{
PyObject* object;
char* Name;
if (!PyArg_ParseTuple(args.ptr(), "Oet", &object, "utf-8", &Name)) {
throw Py::Exception();
}
std::string EncodedName = std::string(Name);
PyMem_Free(Name);
Py::Sequence list(object);
for (Py::Sequence::iterator it = list.begin(); it != list.end(); ++it) {
PyObject* item = (*it).ptr();
if (PyObject_TypeCheck(item, &(App::DocumentObjectPy::Type))) {
App::DocumentObject* obj =
static_cast<App::DocumentObjectPy*>(item)->getDocumentObjectPtr();
if (obj->isDerivedFrom<Drawing::FeaturePage>()) {
Base::FileInfo fi_out(EncodedName.c_str());
Base::ofstream str_out(fi_out, std::ios::out | std::ios::binary);
if (!str_out) {
std::stringstream str;
str << "Cannot open file '" << EncodedName << "' for writing";
throw Py::Exception(PyExc_IOError, str.str().c_str());
}
if (fi_out.hasExtension("svg")) {
std::string fn =
static_cast<Drawing::FeaturePage*>(obj)->PageResult.getValue();
Base::FileInfo fi_in(fn);
Base::ifstream str_in(fi_in, std::ios::in | std::ios::binary);
if (!str_in) {
std::stringstream str;
str << "Cannot open file '" << fn << "' for reading";
throw Py::Exception(PyExc_IOError, str.str().c_str());
}
str_in >> str_out.rdbuf();
str_in.close();
str_out.close();
break;
}
else if (fi_out.hasExtension("dxf")) {
const std::vector<App::DocumentObject*>& views =
static_cast<Drawing::FeaturePage*>(obj)->Group.getValues();
for (std::vector<App::DocumentObject*>::const_iterator it = views.begin();
it != views.end();
++it) {
if ((*it)->isDerivedFrom<Drawing::FeatureViewPart>()) {
Drawing::FeatureViewPart* view =
static_cast<Drawing::FeatureViewPart*>(*it);
App::DocumentObject* link = view->Source.getValue();
if (!link) {
throw Py::ValueError("No object linked");
}
if (!link->isDerivedFrom<Part::Feature>()) {
throw Py::TypeError("Linked object is not a Part object");
}
TopoDS_Shape shape =
static_cast<Part::Feature*>(link)->Shape.getShape().getShape();
if (!shape.IsNull()) {
Base::Vector3d dir = view->Direction.getValue();
bool hidden = view->ShowHiddenLines.getValue();
bool smooth = view->ShowSmoothLines.getValue();
Drawing::ProjectionAlgos::ExtractionType type =
Drawing::ProjectionAlgos::Plain;
if (hidden) {
type = (Drawing::ProjectionAlgos::
ExtractionType)(type
| Drawing::ProjectionAlgos::
WithHidden);
}
if (smooth) {
type = (Drawing::ProjectionAlgos::
ExtractionType)(type
| Drawing::ProjectionAlgos::
WithSmooth);
}
float scale = view->Scale.getValue();
float tol = view->Tolerance.getValue();
Drawing::ProjectionAlgos project(shape, dir);
str_out << project.getDXF(type, scale, tol);
break; // TODO: How to add several shapes?
}
}
}
str_out.close();
break;
}
else {
throw Py::TypeError("Export of page object as this file format is not "
"supported by Drawing module");
}
}
else {
throw Py::TypeError(
"Export of this object type is not supported by Drawing module");
}
}
}
return Py::None();
}
};
PyObject* initModule()
{
return Base::Interpreter().addModule(new Module);
}
} // namespace DrawingGui