FreeCAD/src/Gui/SelectionFilter.cpp

372 lines
11 KiB
C++

/***************************************************************************
* Copyright (c) 2009 Juergen Riegel (FreeCAD@juergen-riegel.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"
#ifdef __GNUC__
# include <unistd.h>
#endif
#include <sstream>
#include <App/Application.h>
#include <App/Document.h>
#include <App/DocumentObjectPy.h>
#include <App/DocumentObject.h>
#include <Base/Interpreter.h>
#include <CXX/Objects.hxx>
#include "Selection.h"
#include "SelectionFilter.h"
//#include "SelectionFilterPy.h"
#include "Application.h"
using namespace Gui;
// suppress annoying warnings from generated source files
#ifdef _MSC_VER
# pragma warning(disable : 4003)
# pragma warning(disable : 4018)
# pragma warning(disable : 4065)
# pragma warning(disable : 4335) // disable MAC file format warning on VC
#endif
SelectionFilterGate::SelectionFilterGate(const char* filter)
{
Filter = new SelectionFilter(filter);
}
SelectionFilterGate::SelectionFilterGate(SelectionFilter* filter)
{
Filter = filter;
}
SelectionFilterGate::~SelectionFilterGate()
{
delete Filter;
}
bool SelectionFilterGate::allow(App::Document*pDoc,App::DocumentObject*pObj, const char*sSubName)
{
return Filter->test(pObj,sSubName);
}
// ----------------------------------------------------------------------------
SelectionGatePython::SelectionGatePython(const Py::Object& obj)
: gate(obj)
{
}
SelectionGatePython::~SelectionGatePython()
{
}
bool SelectionGatePython::allow(App::Document* doc, App::DocumentObject* obj, const char* sub)
{
Base::PyGILStateLocker lock;
try {
if (this->gate.hasAttr(std::string("allow"))) {
Py::Callable method(this->gate.getAttr(std::string("allow")));
Py::Object pyDoc = Py::asObject(doc->getPyObject());
Py::Object pyObj = Py::asObject(obj->getPyObject());
Py::String pySub;
if (sub)
pySub = std::string(sub);
Py::Tuple args(3);
args.setItem(0, pyDoc);
args.setItem(1, pyObj);
args.setItem(2, pySub);
Py::Boolean ok(method.apply(args));
return (bool)ok;
}
}
catch (Py::Exception&) {
Base::PyException e; // extract the Python error text
e.ReportException();
}
return true;
}
// ----------------------------------------------------------------------------
SelectionFilterGatePython::SelectionFilterGatePython(SelectionFilterPy* obj) : filter(obj)
{
Base::PyGILStateLocker lock;
Py_INCREF(filter);
}
SelectionFilterGatePython::~SelectionFilterGatePython()
{
Base::PyGILStateLocker lock;
Py_DECREF(filter);
}
bool SelectionFilterGatePython::allow(App::Document*, App::DocumentObject* obj, const char* sub)
{
return filter->filter.test(obj, sub);
}
// ----------------------------------------------------------------------------
SelectionFilter::SelectionFilter(const char* filter)
: Ast(0)
{
setFilter(filter);
}
SelectionFilter::SelectionFilter(const std::string& filter)
: Ast(0)
{
setFilter(filter.c_str());
}
void SelectionFilter::setFilter(const char* filter)
{
if (!filter || filter[0] == 0) {
delete Ast;
Ast = 0;
}
else {
Filter = filter;
if (!parse())
throw Base::Exception(Errors.c_str());
}
}
SelectionFilter::~SelectionFilter()
{
}
bool SelectionFilter::match(void)
{
if (!Ast)
return false;
Result.clear();
for (std::vector< Node_Object *>::iterator it= Ast->Objects.begin();it!=Ast->Objects.end();++it) {
int min;
int max;
if ((*it)->Slice) {
min = (*it)->Slice->Min;
max = (*it)->Slice->Max;
}
else {
min = 1;
max = 1;
}
std::vector<Gui::SelectionObject> temp = Gui::Selection().getSelectionEx(0,(*it)->ObjectType);
// test if subnames present
if ((*it)->SubName.empty()) {
// if no subnames the count of the object get tested
if ((int)temp.size()<min || (int)temp.size()>max)
return false;
}
else {
// if subnames present count all subs over the selected object of type
int subCount=0;
for (std::vector<Gui::SelectionObject>::const_iterator it2=temp.begin();it2!=temp.end();++it2) {
const std::vector<std::string>& subNames = it2->getSubNames();
if (subNames.empty())
return false;
for (std::vector<std::string>::const_iterator it3=subNames.begin();it3!=subNames.end();++it3) {
if (it3->find((*it)->SubName) != 0)
return false;
}
subCount += subNames.size();
}
if (subCount<min || subCount>max)
return false;
}
Result.push_back(temp);
}
return true;
}
bool SelectionFilter::test(App::DocumentObject*pObj, const char*sSubName)
{
if (!Ast)
return false;
for (std::vector< Node_Object *>::iterator it= Ast->Objects.begin();it!=Ast->Objects.end();++it) {
if (pObj->getTypeId().isDerivedFrom((*it)->ObjectType)) {
if (!sSubName)
return true;
if ((*it)->SubName.empty())
return true;
if (std::string(sSubName).find((*it)->SubName) == 0)
return true;
}
}
return false;
}
void SelectionFilter::addError(const char* e)
{
Errors+=e;
Errors += '\n';
}
// ----------------------------------------------------------------------------
void SelectionFilterPy::init_type()
{
behaviors().name("SelectionFilter");
behaviors().doc("Filter for certain selection");
// you must have overwritten the virtual functions
behaviors().supportRepr();
behaviors().supportGetattr();
behaviors().supportSetattr();
behaviors().set_tp_new(PyMake);
add_varargs_method("match",&SelectionFilterPy::match,"match()");
add_varargs_method("result",&SelectionFilterPy::result,"result()");
add_varargs_method("test",&SelectionFilterPy::test,"test()");
add_varargs_method("setFilter",&SelectionFilterPy::setFilter,"setFilter()");
}
PyObject *SelectionFilterPy::PyMake(struct _typeobject *, PyObject *args, PyObject *)
{
char* str;
if (!PyArg_ParseTuple(args, "s",&str))
return 0;
return new SelectionFilterPy(str);
}
SelectionFilterPy::SelectionFilterPy(const std::string& s)
: filter(s)
{
}
SelectionFilterPy::~SelectionFilterPy()
{
}
Py::Object SelectionFilterPy::repr()
{
std::string s;
std::ostringstream s_out;
s_out << "SelectionFilter";
return Py::String(s_out.str());
}
Py::Object SelectionFilterPy::match(const Py::Tuple& args)
{
return Py::Boolean(filter.match());
}
Py::Object SelectionFilterPy::test(const Py::Tuple& args)
{
PyObject * pcObj;
char* text=0;
if (!PyArg_ParseTuple(args.ptr(), "O!|s",&(App::DocumentObjectPy::Type),&pcObj,&text))
throw Py::Exception();
App::DocumentObjectPy* docObj = static_cast<App::DocumentObjectPy*>(pcObj);
return Py::Boolean(filter.test(docObj->getDocumentObjectPtr(),text));
}
Py::Object SelectionFilterPy::result(const Py::Tuple&)
{
Py::List list;
std::vector<std::vector<SelectionObject> >::iterator it;
for (it = filter.Result.begin(); it != filter.Result.end(); ++it) {
std::vector<SelectionObject>::iterator jt;
Py::Tuple tuple(it->size());
int index=0;
for (jt = it->begin(); jt != it->end(); ++jt) {
tuple[index++] = Py::asObject(jt->getPyObject());
}
list.append(tuple);
}
return list;
}
Py::Object SelectionFilterPy::setFilter(const Py::Tuple& args)
{
char* text=0;
if (!PyArg_ParseTuple(args.ptr(), "s",&text))
throw Py::Exception();
filter.setFilter(text);
return Py::None();
}
// === Parser & Scanner stuff ===============================================
// include the Scanner and the Parser for the filter language
SelectionFilter* ActFilter=0;
Node_Block *TopBlock=0;
// error func
void yyerror(char *errorinfo)
{ ActFilter->addError(errorinfo); }
// for VC9 (isatty and fileno not supported anymore)
#ifdef _MSC_VER
int isatty (int i) {return _isatty(i);}
int fileno(FILE *stream) {return _fileno(stream);}
#endif
namespace SelectionParser {
// show the parser the lexer method
#define yylex SelectionFilterlex
int SelectionFilterlex(void);
// Parser, defined in SelectionFilter.y
#include "SelectionFilter.tab.c"
#ifndef DOXYGEN_SHOULD_SKIP_THIS
// Scanner, defined in SelectionFilter.l
#include "lex.SelectionFilter.c"
#endif // DOXYGEN_SHOULD_SKIP_THIS
}
bool SelectionFilter::parse(void)
{
Errors = "";
SelectionParser::YY_BUFFER_STATE my_string_buffer = SelectionParser::SelectionFilter_scan_string (Filter.c_str());
// be aware that this parser is not reentrant! Dont use with Threats!!!
assert(!ActFilter);
ActFilter = this;
/*int my_parse_result =*/ SelectionParser::yyparse();
ActFilter = 0;
Ast = TopBlock;
TopBlock = 0;
SelectionParser::SelectionFilter_delete_buffer (my_string_buffer);
if(Errors == "")
return true;
else{
return false;
delete Ast;
}
}