--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file loadcanvas.cpp
+** \brief writeme
+**
+** $Id$
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+** Copyright (c) 2007, 2008 Chris Moore
+** Copyright (c) 2009 Carlos A. Sosa Navarro
+**
+** This package is free software; you can redistribute it and/or
+** modify it under the terms of the GNU General Public License as
+** published by the Free Software Foundation; either version 2 of
+** the License, or (at your option) any later version.
+**
+** This package 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
+** General Public License for more details.
+** \endlegal
+*/
+/* ========================================================================= */
+
+/* === H E A D E R S ======================================================= */
+
+#ifdef USING_PCH
+# include "pch.h"
+#else
+#ifdef HAVE_CONFIG_H
+# include <config.h>
+#endif
+
+#include <cstdlib>
+#include <cstdio>
+#include <cstring>
+#include <ETL/stringf>
+#include <libxml++/libxml++.h>
+#include <vector>
+#include <stdexcept>
+#include <iostream>
+
+#include "layer_pastecanvas.h"
+#include "loadcanvas.h"
+#include "valuenode.h"
+#include "valuenode_subtract.h"
+#include "valuenode_animated.h"
+#include "valuenode_composite.h"
+#include "valuenode_const.h"
+#include "valuenode_linear.h"
+#include "valuenode_dynamiclist.h"
+#include "valuenode_reference.h"
+#include "valuenode_scale.h"
+#include "valuenode_timedswap.h"
+#include "valuenode_twotone.h"
+#include "valuenode_stripes.h"
+#include "valuenode_segcalctangent.h"
+#include "valuenode_segcalcvertex.h"
+#include "valuenode_bline.h"
+
+#include "layer.h"
+#include "string.h"
+
+#include "exception.h"
+
+#include "gradient.h"
+
+#include <map>
+#include <sigc++/bind.h>
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace std;
+using namespace synfig;
+using namespace etl;
+
+/*
+class test_class {
+static int bleh;
+public:
+ test_class() { assert(!bleh); bleh++; synfig::info("test_class: initi: %d",bleh); }
+ ~test_class() { assert(bleh); synfig::info("test_class: uninit: %d",bleh); bleh--; }
+};
+int test_class::bleh(0);
+
+test_class test_class_instance;
+*/
+
+/* === M A C R O S ========================================================= */
+
+#define VALUENODE_COMPATIBILITY_URL "http://synfig.org/Convert#Compatibility"
+
+inline bool is_whitespace(char x) { return ((x)=='\n' || (x)=='\t' || (x)==' '); }
+
+std::set<String> CanvasParser::loading_;
+
+/* === P R O C E D U R E S ================================================= */
+
+static std::map<String, Canvas::LooseHandle>* open_canvas_map_(0);
+
+std::map<synfig::String, etl::loose_handle<Canvas> >& synfig::get_open_canvas_map()
+{
+ if(!open_canvas_map_)
+ open_canvas_map_=new std::map<String, Canvas::LooseHandle>;
+ return *open_canvas_map_;
+}
+
+static void _remove_from_open_canvas_map(Canvas *x) { get_open_canvas_map().erase(etl::absolute_path(x->get_file_name())); }
+
+static void _canvas_file_name_changed(Canvas *x)
+{
+ std::map<synfig::String, etl::loose_handle<Canvas> >::iterator iter;
+
+ for(iter=get_open_canvas_map().begin();iter!=get_open_canvas_map().end();++iter)
+ if(iter->second==x)
+ break;
+ assert(iter!=get_open_canvas_map().end());
+ if(iter==get_open_canvas_map().end())
+ return;
+ get_open_canvas_map().erase(iter->first);
+ get_open_canvas_map()[etl::absolute_path(x->get_file_name())]=x;
+
+}
+
+Canvas::Handle
+synfig::open_canvas(const String &filename,String &errors,String &warnings)
+{
+ return open_canvas_as(filename, filename, errors, warnings);
+}
+
+Canvas::Handle
+synfig::open_canvas_as(const String &filename,const String &as,String &errors,String &warnings)
+{
+ if (CanvasParser::loading_.count(filename))
+ {
+ String warning(strprintf(_("cannot load '%s' recursively"), filename.c_str()));
+ synfig::warning(warning);
+ warnings = " * " + warning + "\n";
+ Canvas::Handle canvas(Canvas::create());
+ canvas->set_file_name(filename);
+ Layer::Handle paste(Layer_PasteCanvas::create());
+ canvas->push_back(paste);
+ paste->set_description(warning);
+ return canvas;
+ }
+
+ Canvas::Handle canvas;
+ CanvasParser parser;
+ parser.set_allow_errors(true);
+
+ try
+ {
+ CanvasParser::loading_.insert(filename);
+ canvas=parser.parse_from_file_as(filename,as,errors);
+ }
+ catch (...)
+ {
+ CanvasParser::loading_.erase(filename);
+ throw;
+ }
+ CanvasParser::loading_.erase(filename);
+
+ warnings = parser.get_warnings_text();
+
+ if(parser.error_count())
+ {
+ errors = parser.get_errors_text();
+ return Canvas::Handle();
+ }
+
+ return canvas;
+}
+
+/* === M E T H O D S ======================================================= */
+
+void
+CanvasParser::error_unexpected_element(xmlpp::Node *element,const String &got, const String &expected)
+{
+ error(element,strprintf(_("Unexpected element <%s>, Expected <%s>"),got.c_str(),expected.c_str()));
+}
+
+void
+CanvasParser::error_unexpected_element(xmlpp::Node *element,const String &got)
+{
+ error(element,strprintf(_("Unexpected element <%s>"),got.c_str()));
+}
+
+void
+CanvasParser::warning(xmlpp::Node *element, const String &text)
+{
+ string str=strprintf("%s:<%s>:%d: ",filename.c_str(),element->get_name().c_str(),element->get_line())+text;
+
+ synfig::warning(str);
+ // cerr<<str<<endl;
+
+ total_warnings_++;
+ warnings_text += " * " + str + "\n";
+ if(total_warnings_>=max_warnings_)
+ fatal_error(element, _("Too many warnings"));
+}
+
+void
+CanvasParser::error(xmlpp::Node *element, const String &text)
+{
+ string str=strprintf("%s:<%s>:%d: error: ",filename.c_str(),element->get_name().c_str(),element->get_line())+text;
+ total_errors_++;
+ errors_text += " * " + str + "\n";
+ if(!allow_errors_)
+ throw runtime_error(str);
+ cerr<<str<<endl;
+ // synfig::error(str);
+}
+
+void
+CanvasParser::fatal_error(xmlpp::Node *element, const String &text)
+{
+ string str=strprintf("%s:<%s>:%d:",filename.c_str(),element->get_name().c_str(),element->get_line())+text;
+ throw runtime_error(str);
+}
+
+
+
+Keyframe
+CanvasParser::parse_keyframe(xmlpp::Element *element,Canvas::Handle canvas)
+{
+ assert(element->get_name()=="keyframe");
+
+ if(!element->get_attribute("time"))
+ {
+ error(element,strprintf(_("<%s> is missing \"%s\" attribute"),"real","time"));
+ return Keyframe();
+ }
+
+ Keyframe ret(Time(element->get_attribute("time")->get_value(),canvas->rend_desc().get_frame_rate()));
+
+
+ if(element->get_children().empty())
+ return ret;
+
+ if(element->get_child_text()->get_content().empty())
+ return ret;
+
+ ret.set_description(element->get_child_text()->get_content());
+
+ return ret;
+}
+
+
+Real
+CanvasParser::parse_real(xmlpp::Element *element)
+{
+ assert(element->get_name()=="real");
+
+ if(!element->get_children().empty())
+ warning(element, strprintf(_("<%s> should not contain anything"),"real"));
+
+ if(!element->get_attribute("value"))
+ {
+ error(element,strprintf(_("<%s> is missing \"value\" attribute"),"real"));
+ return false;
+ }
+
+ string val=element->get_attribute("value")->get_value();
+
+ return atof(val.c_str());
+}
+
+Time
+CanvasParser::parse_time(xmlpp::Element *element,Canvas::Handle canvas)
+{
+ assert(element->get_name()=="time");
+
+ if(!element->get_children().empty())
+ warning(element, strprintf(_("<%s> should not contain anything"),"time"));
+
+ if(!element->get_attribute("value"))
+ {
+ error(element,strprintf(_("<%s> is missing \"value\" attribute"),"time"));
+ return false;
+ }
+
+ string val=element->get_attribute("value")->get_value();
+
+ return Time(val,canvas->rend_desc().get_frame_rate());
+}
+
+int
+CanvasParser::parse_integer(xmlpp::Element *element)
+{
+ assert(element->get_name()=="integer");
+
+ if(!element->get_children().empty())
+ warning(element, strprintf(_("<%s> should not contain anything"),"integer"));
+
+ if(!element->get_attribute("value"))
+ {
+ error(element,strprintf(_("<%s> is missing \"value\" attribute"),"integer"));
+ return false;
+ }
+
+ string val=element->get_attribute("value")->get_value();
+
+ return atoi(val.c_str());
+}
+
+// see 'minor hack' at the end of parse_vector() below
+// making this 'static' to give it file local scope
+// stops it working (where working means working around
+// bug #1509627)
+Vector &canvas_parser_vector_id(Vector &vector)
+{
+ return vector;
+}
+
+Vector
+CanvasParser::parse_vector(xmlpp::Element *element)
+{
+ assert(element->get_name()=="vector");
+
+ if(element->get_children().empty())
+ {
+ error(element, "Undefined value in <vector>");
+ return Vector();
+ }
+
+ Vector vect;
+
+ xmlpp::Element::NodeList list = element->get_children();
+ for(xmlpp::Element::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ {
+ xmlpp::Element *child=dynamic_cast<xmlpp::Element*>((xmlpp::Node*)*iter);
+ if(!child)
+ continue;
+ else
+ if(child->get_name()=="x")
+ {
+ if(child->get_children().empty())
+ {
+ error(element, "Undefined value in <x>");
+ return Vector();
+ }
+ vect[0]=atof(child->get_child_text()->get_content().c_str());
+ }
+ else
+ if(child->get_name()=="y")
+ {
+ if(child->get_children().empty())
+ {
+ error(element, "Undefined value in <y>");
+ return Vector();
+ }
+ vect[1]=atof(child->get_child_text()->get_content().c_str());
+ }
+ else
+ error_unexpected_element(child,child->get_name());
+ }
+ // Minor hack - gcc 4.1.2 and earlier think that we're not using
+ // 'vect' and optimize it out at -O2 and higher. This convinces
+ // them that we are really using it.
+ return canvas_parser_vector_id(vect);
+ // When the bug is fixed, we can just do this instead:
+ // return vect;
+}
+
+Color
+CanvasParser::parse_color(xmlpp::Element *element)
+{
+ assert(element->get_name()=="color");
+
+ if(element->get_children().empty())
+ {
+ error(element, "Undefined value in <color>");
+ return Color();
+ }
+
+ Color color(0);
+
+ xmlpp::Element::NodeList list = element->get_children();
+ for(xmlpp::Element::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ {
+ xmlpp::Element *child(dynamic_cast<xmlpp::Element*>(*iter));
+ if(!child)
+ continue;
+ else
+ if(child->get_name()=="r")
+ {
+ if(child->get_children().empty())
+ {
+ error(element, "Undefined value in <r>");
+ return Color();
+ }
+ color.set_r(atof(child->get_child_text()->get_content().c_str()));
+ }
+ else
+ if(child->get_name()=="g")
+ {
+ if(child->get_children().empty())
+ {
+ error(element, "Undefined value in <g>");
+ return Color();
+ }
+ color.set_g(atof(child->get_child_text()->get_content().c_str()));
+ }
+ else
+ if(child->get_name()=="b")
+ {
+ if(child->get_children().empty())
+ {
+ error(element, "Undefined value in <b>");
+ return Color();
+ }
+ color.set_b(atof(child->get_child_text()->get_content().c_str()));
+ }
+ else
+ if(child->get_name()=="a")
+ {
+ if(child->get_children().empty())
+ {
+ error(element, "Undefined value in <a>");
+ return Color();
+ }
+ color.set_a(atof(child->get_child_text()->get_content().c_str()));
+ }
+ else
+ error_unexpected_element(child,child->get_name());
+ }
+
+ return color;
+}
+
+synfig::String
+CanvasParser::parse_string(xmlpp::Element *element)
+{
+ assert(element->get_name()=="string");
+
+ if(element->get_children().empty())
+ {
+ warning(element, "Undefined value in <string>");
+ return synfig::String();
+ }
+
+ if(element->get_child_text()->get_content().empty())
+ {
+ warning(element, "Content element of <string> appears to be empty");
+ return synfig::String();
+ }
+
+ return element->get_child_text()->get_content();
+}
+
+bool
+CanvasParser::parse_bool(xmlpp::Element *element)
+{
+ assert(element->get_name()=="bool");
+
+ if(!element->get_children().empty())
+ warning(element, strprintf(_("<%s> should not contain anything"),"bool"));
+
+ if(!element->get_attribute("value"))
+ {
+ error(element,strprintf(_("<%s> is missing \"value\" attribute"),"bool"));
+ return false;
+ }
+
+ string val=element->get_attribute("value")->get_value();
+
+ if(val=="true" || val=="1")
+ return true;
+ if(val=="false" || val=="0")
+ return false;
+
+ error(element,strprintf(_("Bad value \"%s\" in <%s>"),val.c_str(),"bool"));
+
+ return false;
+}
+
+Gradient
+CanvasParser::parse_gradient(xmlpp::Element *node)
+{
+ assert(node->get_name()=="gradient");
+ Gradient ret;
+
+ xmlpp::Element::NodeList list = node->get_children();
+ for(xmlpp::Element::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ {
+ xmlpp::Element *child(dynamic_cast<xmlpp::Element*>(*iter));
+ if(!child)
+ continue;
+ else
+ {
+ Gradient::CPoint cpoint;
+ cpoint.color=parse_color(child);
+
+ if(!child->get_attribute("pos"))
+ {
+ error(child,strprintf(_("<%s> is missing \"pos\" attribute"),"gradient"));
+ return Gradient();
+ }
+
+ cpoint.pos=atof(child->get_attribute("pos")->get_value().c_str());
+
+ ret.push_back(cpoint);
+ }
+ }
+ ret.sort();
+ return ret;
+}
+
+ValueBase
+CanvasParser::parse_list(xmlpp::Element *element,Canvas::Handle canvas)
+{
+ vector<ValueBase> value_list;
+
+ xmlpp::Element::NodeList list = element->get_children();
+ for(xmlpp::Element::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ {
+ xmlpp::Element *child(dynamic_cast<xmlpp::Element*>(*iter));
+ if(!child)
+ continue;
+ else
+ {
+ value_list.push_back(parse_value(child,canvas));
+ if(!value_list.back().is_valid())
+ {
+ value_list.pop_back();
+ error(child,"Bad ValueBase");
+ continue;
+ }
+ }
+ }
+ return value_list;
+}
+
+Segment
+CanvasParser::parse_segment(xmlpp::Element *element)
+{
+ assert(element->get_name()=="segment");
+
+ if(element->get_children().empty())
+ {
+ error(element, "Undefined value in <segment>");
+ return Segment();
+ }
+
+ Segment seg;
+
+ xmlpp::Element::NodeList list = element->get_children();
+ for(xmlpp::Element::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ {
+ xmlpp::Element *child(dynamic_cast<xmlpp::Element*>(*iter));
+ if(!child)
+ continue;
+ else
+ if(child->get_name()=="p1")
+ {
+ xmlpp::Element::NodeList list = child->get_children();
+ xmlpp::Element::NodeList::iterator iter;
+
+ // Search for the first non-text XML element
+ for(iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::Element*>(*iter)) break;
+
+ if(iter==list.end())
+ {
+ error(element, "Undefined value in <p1>");
+ continue;
+ }
+
+ if((*iter)->get_name()!="vector")
+ {
+ error_unexpected_element((*iter),(*iter)->get_name(),"vector");
+ continue;
+ }
+
+ seg.p1=parse_vector(dynamic_cast<xmlpp::Element*>(*iter));
+ }
+ else
+ if(child->get_name()=="t1")
+ {
+ xmlpp::Element::NodeList list = child->get_children();
+ xmlpp::Element::NodeList::iterator iter;
+
+ // Search for the first non-text XML element
+ for(iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::Element*>(*iter)) break;
+
+ if(iter==list.end())
+ {
+ error(element, "Undefined value in <t1>");
+ continue;
+ }
+
+ if((*iter)->get_name()!="vector")
+ {
+ error_unexpected_element((*iter),(*iter)->get_name(),"vector");
+ continue;
+ }
+
+ seg.t1=parse_vector(dynamic_cast<xmlpp::Element*>(*iter));
+ }
+ else
+ if(child->get_name()=="p2")
+ {
+ xmlpp::Element::NodeList list = child->get_children();
+ xmlpp::Element::NodeList::iterator iter;
+
+ // Search for the first non-text XML element
+ for(iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::Element*>(*iter)) break;
+
+ if(iter==list.end())
+ {
+ error(element, "Undefined value in <p2>");
+ continue;
+ }
+
+ if((*iter)->get_name()!="vector")
+ {
+ error_unexpected_element((*iter),(*iter)->get_name(),"vector");
+ continue;
+ }
+
+ seg.p2=parse_vector(dynamic_cast<xmlpp::Element*>(*iter));
+ }
+ else
+ if(child->get_name()=="t2")
+ {
+ xmlpp::Element::NodeList list = child->get_children();
+ xmlpp::Element::NodeList::iterator iter;
+
+ // Search for the first non-text XML element
+ for(iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::Element*>(*iter)) break;
+
+ if(iter==list.end())
+ {
+ error(element, "Undefined value in <t2>");
+ continue;
+ }
+
+ if((*iter)->get_name()!="vector")
+ {
+ error_unexpected_element((*iter),(*iter)->get_name(),"vector");
+ continue;
+ }
+
+ seg.t2=parse_vector(dynamic_cast<xmlpp::Element*>(*iter));
+ }
+ else
+ error_unexpected_element(child,child->get_name());
+ }
+ return seg;
+}
+
+BLinePoint
+CanvasParser::parse_bline_point(xmlpp::Element *element)
+{
+ assert(element->get_name()=="bline_point");
+ if(element->get_children().empty())
+ {
+ error(element, "Undefined value in <bline_point>");
+ return BLinePoint();
+ }
+
+ BLinePoint ret;
+ ret.set_split_tangent_flag(false);
+
+ xmlpp::Element::NodeList list = element->get_children();
+ for(xmlpp::Element::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ {
+ xmlpp::Element *child(dynamic_cast<xmlpp::Element*>(*iter));
+ if(!child)
+ continue;
+ else
+ // Vertex
+ if(child->get_name()[0]=='v' || child->get_name()=="p1")
+ {
+ xmlpp::Element::NodeList list = child->get_children();
+ xmlpp::Element::NodeList::iterator iter;
+
+ // Search for the first non-text XML element
+ for(iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::Element*>(*iter)) break;
+
+ if(iter==list.end())
+ {
+ error(element, "Undefined value in <vertex>");
+ continue;
+ }
+
+ if((*iter)->get_name()!="vector")
+ {
+ error_unexpected_element((*iter),(*iter)->get_name(),"vector");
+ continue;
+ }
+
+ ret.set_vertex(parse_vector(dynamic_cast<xmlpp::Element*>(*iter)));
+ }
+ else
+ // Tangent 1
+ if(child->get_name()=="t1" || child->get_name()=="tangent")
+ {
+ xmlpp::Element::NodeList list = child->get_children();
+ xmlpp::Element::NodeList::iterator iter;
+
+ // Search for the first non-text XML element
+ for(iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::Element*>(*iter)) break;
+
+ if(iter==list.end())
+ {
+ error(element, "Undefined value in <t1>");
+ continue;
+ }
+
+ if((*iter)->get_name()!="vector")
+ {
+ error_unexpected_element((*iter),(*iter)->get_name(),"vector");
+ continue;
+ }
+
+ ret.set_tangent1(parse_vector(dynamic_cast<xmlpp::Element*>(*iter)));
+ }
+ else
+ // Tangent 2
+ if(child->get_name()=="t2")
+ {
+ xmlpp::Element::NodeList list = child->get_children();
+ xmlpp::Element::NodeList::iterator iter;
+
+ // Search for the first non-text XML element
+ for(iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::Element*>(*iter)) break;
+
+ if(iter==list.end())
+ {
+ error(element, "Undefined value in <t2>");
+ continue;
+ }
+
+ if((*iter)->get_name()!="vector")
+ {
+ error_unexpected_element((*iter),(*iter)->get_name(),"vector");
+ continue;
+ }
+
+ ret.set_tangent2(parse_vector(dynamic_cast<xmlpp::Element*>(*iter)));
+ ret.set_split_tangent_flag(true);
+ }
+ else
+ // width
+ if(child->get_name()=="width")
+ {
+ xmlpp::Element::NodeList list = child->get_children();
+ xmlpp::Element::NodeList::iterator iter;
+
+ // Search for the first non-text XML element
+ for(iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::Element*>(*iter)) break;
+
+ if(iter==list.end())
+ {
+ error(element, "Undefined value in <width>");
+ continue;
+ }
+
+ if((*iter)->get_name()!="real")
+ {
+ error_unexpected_element((*iter),(*iter)->get_name(),"real");
+ continue;
+ }
+
+ ret.set_width(parse_real(dynamic_cast<xmlpp::Element*>(*iter)));
+ }
+ else
+ // origin
+ if(child->get_name()=="origin")
+ {
+ xmlpp::Element::NodeList list = child->get_children();
+ xmlpp::Element::NodeList::iterator iter;
+
+ // Search for the first non-text XML element
+ for(iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::Element*>(*iter)) break;
+
+ if(iter==list.end())
+ {
+ error(element, "Undefined value in <origin>");
+ continue;
+ }
+
+ if((*iter)->get_name()!="real")
+ {
+ error_unexpected_element((*iter),(*iter)->get_name(),"real");
+ continue;
+ }
+
+ ret.set_origin(parse_real(dynamic_cast<xmlpp::Element*>(*iter)));
+ }
+ else
+ error_unexpected_element(child,child->get_name());
+ }
+ return ret;
+}
+
+Angle
+CanvasParser::parse_angle(xmlpp::Element *element)
+{
+ assert(element->get_name()=="angle");
+
+ if(!element->get_children().empty())
+ warning(element, strprintf(_("<%s> should not contain anything"),"angle"));
+
+ if(!element->get_attribute("value"))
+ {
+ error(element,strprintf(_("<%s> is missing \"value\" attribute"),"angle"));
+ return Angle();
+ }
+
+ string val=element->get_attribute("value")->get_value();
+
+ return Angle::deg(atof(val.c_str()));
+}
+
+ValueBase
+CanvasParser::parse_value(xmlpp::Element *element,Canvas::Handle canvas)
+{
+ if(element->get_name()=="real")
+ return parse_real(element);
+ else
+ if(element->get_name()=="time")
+ return parse_time(element,canvas);
+ else
+ if(element->get_name()=="integer")
+ return parse_integer(element);
+ else
+ if(element->get_name()=="string")
+ return parse_string(element);
+ else
+ if(element->get_name()=="vector")
+ return parse_vector(element);
+ else
+ if(element->get_name()=="color")
+ return parse_color(element);
+ else
+ if(element->get_name()=="segment")
+ return parse_segment(element);
+ else
+ if(element->get_name()=="list")
+ return parse_list(element,canvas);
+ else
+ if(element->get_name()=="gradient")
+ return parse_gradient(element);
+ else
+ if(element->get_name()=="bool")
+ return parse_bool(element);
+ else
+ //if(element->get_name()=="canvas")
+ // return parse_canvas(element,canvas,true); // inline canvas
+ //else
+ if(element->get_name()=="angle" || element->get_name()=="degrees" || element->get_name()=="radians" || element->get_name()=="rotations")
+ return parse_angle(element);
+ else
+ if(element->get_name()=="bline_point")
+ return parse_bline_point(element);
+ else
+ if(element->get_name()=="canvas")
+ return ValueBase(parse_canvas(element,canvas,true));
+ else
+ {
+ error_unexpected_element(element,element->get_name());
+ }
+
+ return ValueBase();
+}
+
+
+
+
+ValueNode_Animated::Handle
+CanvasParser::parse_animated(xmlpp::Element *element,Canvas::Handle canvas)
+{
+ assert(element->get_name()=="hermite" || element->get_name()=="animated");
+
+ if(!element->get_attribute("type"))
+ {
+ error(element,"Missing attribute \"type\" in <animated>");
+ return ValueNode_Animated::Handle();
+ }
+
+ ValueBase::Type type=ValueBase::ident_type(element->get_attribute("type")->get_value());
+
+ if(!type)
+ {
+ error(element,"Bad type in <animated>");
+ return ValueNode_Animated::Handle();
+ }
+
+ ValueNode_Animated::Handle value_node=ValueNode_Animated::create(type);
+
+ if(!value_node)
+ {
+ error(element,strprintf(_("Unable to create <animated> with type \"%s\""),ValueBase::type_local_name(type).c_str()));
+ return ValueNode_Animated::Handle();
+ }
+
+ value_node->set_root_canvas(canvas->get_root());
+
+ xmlpp::Element::NodeList list = element->get_children();
+ for(xmlpp::Element::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ {
+ xmlpp::Element *child(dynamic_cast<xmlpp::Element*>(*iter));
+ if(!child)
+ continue;
+ else
+ if(child->get_name()=="waypoint")
+ {
+ if(!child->get_attribute("time"))
+ {
+ error(child,_("<waypoint> is missing attribute \"time\""));
+ continue;
+ }
+
+ Time time(child->get_attribute("time")->get_value(),canvas->rend_desc().get_frame_rate());
+
+
+ ValueNode::Handle waypoint_value_node;
+ xmlpp::Element::NodeList list = child->get_children();
+
+ if(child->get_attribute("use"))
+ {
+ if(!list.empty())
+ warning(child,_("Found \"use\" attribute for <waypoint>, but it wasn't empty. Ignoring contents..."));
+
+ // the waypoint might look like this, in which case we won't find "mycanvas" in the list of valuenodes, 'cos it's a canvas
+ //
+ // <animated type="canvas">
+ // <waypoint time="0s" use="mycanvas"/>
+ // </animated>
+ if (type==ValueBase::TYPE_CANVAS)
+ {
+ String warnings;
+ waypoint_value_node=ValueNode_Const::create(canvas->surefind_canvas(child->get_attribute("use")->get_value(), warnings));
+ warnings_text += warnings;
+ }
+ else
+ waypoint_value_node=canvas->surefind_value_node(child->get_attribute("use")->get_value());
+ }
+ else
+ {
+ if(child->get_children().empty())
+ {
+ error(child, strprintf(_("<%s> is missing its data"),"waypoint"));
+ continue;
+ }
+
+ xmlpp::Element::NodeList::iterator iter;
+
+ // Search for the first non-text XML element
+ for(iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::Element*>(*iter)) break;
+
+ if(iter==list.end())
+ {
+ error(child, strprintf(_("<%s> is missing its data"),"waypoint"));
+ continue;
+ }
+
+ waypoint_value_node=parse_value_node(dynamic_cast<xmlpp::Element*>(*iter),canvas);
+
+ /*
+ ValueBase data=parse_value(dynamic_cast<xmlpp::Element*>(*iter),canvas);
+
+ if(!data.is_valid())
+ {
+ error(child,_("Bad data for <waypoint>"));
+ continue;
+ }
+ */
+ if(!waypoint_value_node)
+ {
+ error(child,_("Bad data for <waypoint>"));
+ continue;
+ }
+
+ /*! HACK -- This is a temporary fix to help repair some
+ ** weirdness that is currently going on (10-21-2004).
+ ** This short circuits the linking of waypoints,
+ ** a feature which is so obscure that we can get
+ ** away with something like this pretty easily.
+ */
+ waypoint_value_node=waypoint_value_node->clone();
+
+ // Warn if there is trash after the param value
+ for(iter++; iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::Element*>(*iter))
+ warning((*iter),strprintf(_("Unexpected element <%s> after <waypoint> data, ignoring..."),(*iter)->get_name().c_str()));
+ }
+
+
+ try {
+ ValueNode_Animated::WaypointList::iterator waypoint=value_node->new_waypoint(time,waypoint_value_node);
+
+ if(child->get_attribute("tension"))
+ {
+ synfig::String str(child->get_attribute("tension")->get_value());
+ waypoint->set_tension(atof(str.c_str()));
+ }
+ if(child->get_attribute("temporal-tension"))
+ {
+ synfig::String str(child->get_attribute("temporal-tension")->get_value());
+ waypoint->set_temporal_tension(atof(str.c_str()));
+ }
+ if(child->get_attribute("continuity"))
+ {
+ synfig::String str(child->get_attribute("continuity")->get_value());
+ waypoint->set_continuity(atof(str.c_str()));
+ }
+ if(child->get_attribute("bias"))
+ {
+ synfig::String str(child->get_attribute("bias")->get_value());
+ waypoint->set_bias(atof(str.c_str()));
+ }
+
+ if(child->get_attribute("before"))
+ {
+ string val=child->get_attribute("before")->get_value();
+ if(val=="halt")
+ waypoint->set_before(INTERPOLATION_HALT);
+ else if(val=="constant")
+ waypoint->set_before(INTERPOLATION_CONSTANT);
+ else if(val=="linear")
+ waypoint->set_before(INTERPOLATION_LINEAR);
+ else if(val=="manual")
+ waypoint->set_before(INTERPOLATION_MANUAL);
+ else if(val=="auto")
+ waypoint->set_before(INTERPOLATION_TCB);
+ else
+ error(child,strprintf(_("\"%s\" not a valid value for attribute \"%s\" in <%s>"),val.c_str(),"before","waypoint"));
+ }
+
+ if(child->get_attribute("after"))
+ {
+ string val=child->get_attribute("after")->get_value();
+ if(val=="halt")
+ waypoint->set_after(INTERPOLATION_HALT);
+ else if(val=="constant")
+ waypoint->set_after(INTERPOLATION_CONSTANT);
+ else if(val=="linear")
+ waypoint->set_after(INTERPOLATION_LINEAR);
+ else if(val=="manual")
+ waypoint->set_after(INTERPOLATION_MANUAL);
+ else if(val=="auto")
+ waypoint->set_after(INTERPOLATION_TCB);
+ else
+ error(child,strprintf(_("\"%s\" not a valid value for attribute \"%s\" in <%s>"),val.c_str(),"before","waypoint"));
+ }
+ }
+ catch(Exception::BadTime x)
+ {
+ warning(child,x.what());
+ }
+ continue;
+
+ }
+ else
+ error_unexpected_element(child,child->get_name());
+ }
+
+ // in canvas version 0.1, angles used to wrap, so to get from -179
+ // degrees to 180 degrees meant a 1 degree change
+ // in canvas version 0.2 they don't, so that's a 359 degree change
+
+ // when loading a version 0.1 canvas, modify constant angle
+ // waypoints to that they are within 180 degrees of the previous
+ // waypoint's value
+ if (type == ValueBase::TYPE_ANGLE)
+ {
+ if (canvas->get_version() == "0.1")
+ {
+ bool first = true;
+ Real angle, prev = 0;
+ WaypointList &wl = value_node->waypoint_list();
+ for (WaypointList::iterator iter = wl.begin(); iter != wl.end(); iter++)
+ {
+ angle = Angle::deg(iter->get_value(iter->get_time()).get(Angle())).get();
+ if (first)
+ first = false;
+ else if (iter->get_value_node()->get_name() == "constant")
+ {
+ if (angle - prev > 180)
+ {
+ while (angle - prev > 180) angle -= 360;
+ iter->set_value(Angle::deg(angle));
+ }
+ else if (prev - angle > 180)
+ {
+ while (prev - angle > 180) angle += 360;
+ iter->set_value(Angle::deg(angle));
+ }
+ }
+ prev = angle;
+ }
+ }
+ }
+
+ value_node->changed();
+ return value_node;
+}
+
+etl::handle<LinkableValueNode>
+CanvasParser::parse_linkable_value_node(xmlpp::Element *element,Canvas::Handle canvas)
+{
+ // Determine the type
+ if(!element->get_attribute("type"))
+ {
+ error(element, strprintf(_("Missing attribute \"type\" in <%s>"), element->get_name().c_str()));
+ return 0;
+ }
+
+ ValueBase::Type type=ValueBase::ident_type(element->get_attribute("type")->get_value());
+
+ if(!type)
+ {
+ error(element, strprintf(_("Bad type in <%s>"), element->get_name().c_str()));
+ return 0;
+ }
+
+ handle<LinkableValueNode> value_node=LinkableValueNode::create(element->get_name(),type);
+ handle<ValueNode> c[value_node->link_count()];
+
+ if(!value_node)
+ {
+ error(element, strprintf(_("Error creating ValueNode <%s> with type '%s'. Refer to '%s'"),
+ element->get_name().c_str(),
+ ValueBase::type_local_name(type).c_str(),
+ VALUENODE_COMPATIBILITY_URL));
+ return 0;
+ }
+
+ if(value_node->get_type()!=type)
+ {
+ error(element, strprintf(_("<%s> did not accept type '%s'"),
+ element->get_name().c_str(),
+ ValueBase::type_local_name(type).c_str()));
+ return 0;
+ }
+
+ value_node->set_root_canvas(canvas->get_root());
+
+ // handle exported valuenodes
+ {
+ int index;
+ String id, name;
+ xmlpp::Element::AttributeList attrib_list(element->get_attributes());
+ for(xmlpp::Element::AttributeList::iterator iter = attrib_list.begin(); iter != attrib_list.end(); iter++)
+ {
+ name = (*iter)->get_name();
+ id = (*iter)->get_value();
+
+ if (name == "guid" || name == "id" || name == "type")
+ continue;
+
+ try {
+ index = value_node->get_link_index_from_name(name);
+
+ if(c[index])
+ {
+ error(element,strprintf(_("'%s' was already defined in <%s>"),
+ name.c_str(),
+ element->get_name().c_str()));
+ continue;
+ }
+
+ c[index] = canvas->surefind_value_node(id);
+
+ if (!c[index])
+ {
+ error(element, strprintf(_("'%s' attribute in <%s> references unknown ID '%s'"),
+ name.c_str(),
+ element->get_name().c_str(),
+ id.c_str()));
+ continue;
+ }
+
+ if(!value_node->set_link(index, c[index]))
+ {
+ error(element, strprintf(_("Unable to set link '\"%s\" to ValueNode \"%s\" (link #%d in \"%s\")"),
+ value_node->link_name(index).c_str(),
+ id.c_str(),
+ index,
+ element->get_name().c_str()));
+ continue;
+ }
+
+ // printf(" <%s> set link %d (%s) using exported value\n", element->get_name().c_str(), index, name.c_str());
+ }
+ catch (Exception::BadLinkName)
+ {
+ warning(element, strprintf("Bad link name '%s'", name.c_str()));
+ }
+ catch(Exception::IDNotFound)
+ {
+ error(element,"Unable to resolve " + id);
+ }
+ catch(Exception::FileNotFound)
+ {
+ error(element,"Unable to open file referenced in " + id);
+ }
+ catch(...)
+ {
+ error(element,strprintf(_("Unknown Exception thrown when referencing ValueNode \"%s\""), id.c_str()));
+ throw;
+ }
+ }
+ }
+
+ // handle inline valuenodes
+ {
+ int index;
+ String child_name;
+ xmlpp::Element::NodeList list = element->get_children();
+ for(xmlpp::Element::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ {
+ xmlpp::Element *child(dynamic_cast<xmlpp::Element*>(*iter));
+ try
+ {
+ if(!child)
+ continue;
+
+ child_name = child->get_name();
+
+ index = value_node->get_link_index_from_name(child_name);
+
+ if(c[index])
+ {
+ error(child, strprintf(_("'%s' was already defined in <%s>"),
+ child_name.c_str(),
+ element->get_name().c_str()));
+ break;
+ }
+
+ xmlpp::Element::NodeList list = child->get_children();
+ xmlpp::Element::NodeList::iterator iter;
+
+ // Search for the first non-text XML element
+ for(iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::Element*>(*iter)) break;
+
+ if(iter==list.end())
+ {
+ error(child,strprintf(_("element <%s> is missing its contents"),
+ child_name.c_str()));
+ continue;
+ }
+
+ c[index]=parse_value_node(dynamic_cast<xmlpp::Element*>(*iter),canvas);
+
+ if(!c[index])
+ {
+ error((*iter),strprintf(_("Parse of '%s' failed"),
+ child_name.c_str()));
+ continue;
+ }
+
+ if(!value_node->set_link(index,c[index]))
+ {
+ error(child,strprintf(_("Unable to connect value node ('%s' of type '%s') to link %d (%s)"),
+ c[index]->get_name().c_str(),
+ ValueBase::type_local_name(c[index]->get_type()).c_str(),
+ index,
+ value_node->link_name(index).c_str()));
+ continue;
+ }
+
+ // \todo do a search for more elements and warn if they are found
+
+ // printf(" <%s> set link %d (%s) using inline value\n", element->get_name().c_str(), index, child_name.c_str());
+ }
+ catch(Exception::BadLinkName)
+ {
+ warning(child, strprintf("Bad link name for <%s>", element->get_name().c_str()));
+ }
+ catch(...)
+ {
+ error(child, strprintf(_("Unknown Exception thrown when working on element \"%s\""),child_name.c_str()));
+ throw;
+ }
+ }
+ }
+
+ String version(canvas->get_version());
+ for (int i = 0; i < value_node->link_count(); i++)
+ {
+ if (!c[i])
+ {
+ // the 'width' parameter of <stripes> wasn't always present in version 0.1 canvases
+ if (version == "0.1" && element->get_name() == "stripes" && value_node->link_name(i) == "width")
+ continue;
+
+ // these 3 blinecalctangent parameters didn't appear until canvas version 0.5
+ if ((version == "0.1" || version == "0.2" || version == "0.3" || version == "0.4") &&
+ element->get_name() == "blinecalctangent" &&
+ (value_node->link_name(i) == "offset" ||
+ value_node->link_name(i) == "scale" ||
+ value_node->link_name(i) == "fixed_length"))
+ continue;
+
+ // 'scale' was added while canvas version 0.5 was in use
+ if ((version == "0.3" || version == "0.4" || version == "0.5") &&
+ element->get_name() == "blinecalcwidth" &&
+ value_node->link_name(i) == "scale")
+ continue;
+
+ // 'loop' was added while canvas version 0.5 was in use, as was the 'gradientcolor' node type
+ if (version == "0.5" &&
+ element->get_name() == "gradientcolor" &&
+ value_node->link_name(i) == "loop")
+ continue;
+
+ // 'loop' was added while canvas version 0.6 was in use; the 'random' node was added back when 0.1 was in use
+ if ((version == "0.1" || version == "0.2" || version == "0.3" || version == "0.4" || version == "0.5" || version == "0.6") &&
+ element->get_name() == "random" &&
+ value_node->link_name(i) == "loop")
+ continue;
+
+ error(element, strprintf(_("<%s> is missing link %d (%s)"),
+ element->get_name().c_str(),
+ i,
+ value_node->link_name(i).c_str()));
+ return 0;
+ }
+ }
+
+ // pre 0.4 canvases had *calctangent outputs scaled down by 0.5 for some reason
+ if (element->get_name() == "blinecalctangent" || element->get_name() == "segcalctangent")
+ {
+ if (version == "0.1" || version == "0.2" || version == "0.3")
+ {
+ handle<LinkableValueNode> scale_value_node=LinkableValueNode::create("scale",type);
+ scale_value_node->set_link(scale_value_node->get_link_index_from_name("link"), value_node);
+ scale_value_node->set_link(scale_value_node->get_link_index_from_name("scalar"), ValueNode_Const::create(Real(0.5)));
+ value_node = scale_value_node;
+ }
+ }
+
+ return value_node;
+}
+
+// This will also parse a bline
+handle<ValueNode_DynamicList>
+CanvasParser::parse_dynamic_list(xmlpp::Element *element,Canvas::Handle canvas)
+{
+ assert(element->get_name()=="dynamic_list" || element->get_name()=="bline");
+
+ const float fps(canvas?canvas->rend_desc().get_frame_rate():0);
+
+ if(!element->get_attribute("type"))
+ {
+ error(element,"Missing attribute \"type\" in <dynamic_list>");
+ return handle<ValueNode_DynamicList>();
+ }
+
+ ValueBase::Type type=ValueBase::ident_type(element->get_attribute("type")->get_value());
+
+ if(!type)
+ {
+ error(element,"Bad type in <dynamic_list>");
+ return handle<ValueNode_DynamicList>();
+ }
+
+ handle<ValueNode_DynamicList> value_node;
+ handle<ValueNode_BLine> bline_value_node;
+
+ if(element->get_name()=="bline")
+ {
+ value_node=bline_value_node=ValueNode_BLine::create();
+ if(element->get_attribute("loop"))
+ {
+ String loop=element->get_attribute("loop")->get_value();
+ if(loop=="true" || loop=="1" || loop=="TRUE" || loop=="True")
+ bline_value_node->set_loop(true);
+ else
+ bline_value_node->set_loop(false);
+ }
+
+ }
+ else
+ value_node=ValueNode_DynamicList::create(type);
+
+ if(!value_node)
+ {
+ error(element,strprintf(_("Unable to create <dynamic_list>")));
+ return handle<ValueNode_DynamicList>();
+ }
+
+ value_node->set_root_canvas(canvas->get_root());
+
+ xmlpp::Element::NodeList list = element->get_children();
+ for(xmlpp::Element::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ {
+ xmlpp::Element *child(dynamic_cast<xmlpp::Element*>(*iter));
+ if(!child)
+ continue;
+ else
+ if(child->get_name()=="entry")
+ {
+ ValueNode_DynamicList::ListEntry list_entry;
+
+ // Parse begin/end waypoints
+ {
+ typedef synfig::ValueNode_DynamicList::ListEntry::Activepoint Activepoint;
+ typedef synfig::ValueNode_DynamicList::ListEntry::ActivepointList ActivepointList;
+
+ String begin_sequence;
+ String end_sequence;
+
+ ActivepointList &timing_info(list_entry.timing_info);
+
+ if(child->get_attribute("begin"))
+ begin_sequence=child->get_attribute("begin")->get_value();
+
+ if(child->get_attribute("on"))
+ begin_sequence=child->get_attribute("on")->get_value();
+
+ if(child->get_attribute("end"))
+ end_sequence=child->get_attribute("end")->get_value();
+
+ if(child->get_attribute("off"))
+ end_sequence=child->get_attribute("off")->get_value();
+
+ // clear out any auto-start
+ if(!begin_sequence.empty())
+ timing_info.clear();
+
+ //! \optimize
+ while(!begin_sequence.empty())
+ {
+ String::iterator iter(find(begin_sequence.begin(),begin_sequence.end(),','));
+ String timecode(begin_sequence.begin(), iter);
+ int priority=0;
+
+ // skip whitespace before checking for a priority
+ while (isspace(timecode[0]))
+ timecode=timecode.substr(1);
+
+ // If there is a priority, then grab it and remove
+ // it from the timecode
+ if(timecode[0]=='p')
+ {
+ //priority=timecode[1]-'0';
+ //timecode=String(timecode.begin()+3,timecode.end());
+ int space=timecode.find_first_of(' ');
+ priority=atoi(String(timecode,1,space-1).c_str());
+ timecode=String(timecode.begin()+space+1,timecode.end());
+ //synfig::info("priority: %d timecode: %s",priority,timecode.c_str());
+ }
+
+ timing_info.push_back(
+ Activepoint(
+ Time(
+ timecode,
+ fps
+ ),
+ true, // Mark as a "on" activepoint
+ priority
+ )
+ );
+
+ if(iter==begin_sequence.end())
+ begin_sequence.clear();
+ else
+ begin_sequence=String(iter+1,begin_sequence.end());
+ }
+
+ //! \optimize
+ while(!end_sequence.empty())
+ {
+ String::iterator iter(find(end_sequence.begin(),end_sequence.end(),','));
+ String timecode(end_sequence.begin(), iter);
+ int priority=0;
+
+ // skip whitespace before checking for a priority
+ while (isspace(timecode[0]))
+ timecode=timecode.substr(1);
+
+ // If there is a priority, then grab it and remove
+ // it from the timecode
+ if(timecode[0]=='p')
+ {
+ //priority=timecode[1]-'0';
+ //timecode=String(timecode.begin()+3,timecode.end());
+ int space=timecode.find_first_of(' ');
+ priority=atoi(String(timecode,1,space-1).c_str());
+ timecode=String(timecode.begin()+space+1,timecode.end());
+ //synfig::info("priority: %d timecode: %s",priority,timecode.c_str());
+ }
+
+ timing_info.push_back(
+ Activepoint(
+ Time(
+ timecode,
+ fps
+ ),
+ false, // Mark as a "off" activepoint
+ priority
+ )
+ );
+ if(iter==end_sequence.end())
+ end_sequence.clear();
+ else
+ end_sequence=String(iter+1,end_sequence.end());
+ }
+
+ timing_info.sort();
+ }
+
+ if(child->get_attribute("use"))
+ {
+ // \todo does this need to be able to read 'use="canvas"', like waypoints can now? (see 'surefind_canvas' in this file)
+ string id=child->get_attribute("use")->get_value();
+ try
+ {
+ list_entry.value_node=canvas->surefind_value_node(id);
+ }
+ catch(Exception::IDNotFound)
+ {
+ error(child,"\"use\" attribute in <entry> references unknown ID -- "+id);
+ continue;
+ }
+ }
+ else
+ {
+ xmlpp::Element::NodeList list = child->get_children();
+ xmlpp::Element::NodeList::iterator iter;
+
+ // Search for the first non-text XML element
+ for(iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::Element*>(*iter)) break;
+
+ if(iter==list.end())
+ {
+ error(child,strprintf(_("<entry> is missing its contents or missing \"use\" element")));
+ continue;
+ }
+
+ list_entry.value_node=parse_value_node(dynamic_cast<xmlpp::Element*>(*iter),canvas);
+
+ if(!list_entry.value_node)
+ error((*iter),"Parse of ValueNode failed");
+
+ // \todo do a search for more elements and warn if they are found
+
+ }
+
+ value_node->add(list_entry);
+ value_node->set_link(value_node->link_count()-1,list_entry.value_node);
+ }
+ else
+ error_unexpected_element(child,child->get_name());
+ }
+ return value_node;
+}
+
+handle<ValueNode>
+CanvasParser::parse_value_node(xmlpp::Element *element,Canvas::Handle canvas)
+{
+ handle<ValueNode> value_node;
+ assert(element);
+
+ GUID guid;
+
+ if(element->get_attribute("guid"))
+ {
+ guid=GUID(element->get_attribute("guid")->get_value())^canvas->get_root()->get_guid();
+ value_node=guid_cast<ValueNode>(guid);
+ if(value_node)
+ return value_node;
+ }
+
+ // If ValueBase::ident_type() recognizes the name, then we know it's a ValueBase
+ if(element->get_name()!="canvas" && ValueBase::ident_type(element->get_name()))
+ {
+ ValueBase data=parse_value(element,canvas);
+
+ if(!data.is_valid())
+ {
+ error(element,strprintf(_("Bad data in <%s>"),element->get_name().c_str()));
+ return value_node;
+ }
+
+ // We want to convert this ValueBase into a
+ // ValueNode_Const. That way, we can treat the
+ // ID like any other Datanode. Think of this
+ // as a shorthand for creating constant ValueNodes.
+
+ value_node=ValueNode_Const::create(data);
+ }
+ else
+ if(element->get_name()=="hermite" || element->get_name()=="animated")
+ value_node=parse_animated(element,canvas);
+ else
+ if(element->get_name()=="dynamic_list")
+ value_node=parse_dynamic_list(element,canvas);
+ else
+ if(element->get_name()=="bline") // This is not a typo. The dynamic list parser will parse a bline.
+ value_node=parse_dynamic_list(element,canvas);
+ else
+ if(LinkableValueNode::book().count(element->get_name()))
+ {
+ value_node=parse_linkable_value_node(element,canvas);
+ if (!value_node) value_node = PlaceholderValueNode::create();
+ }
+ else
+ if(element->get_name()=="canvas")
+ value_node=ValueNode_Const::create(parse_canvas(element,canvas,true));
+ else
+ {
+ error_unexpected_element(element,element->get_name());
+ error(element, strprintf(_("Expected a ValueNode. Refer to '%s'"),
+ VALUENODE_COMPATIBILITY_URL));
+ value_node=PlaceholderValueNode::create();
+ }
+
+ value_node->set_root_canvas(canvas->get_root());
+
+ // If we were successful, and our element has
+ // an ID attribute, go ahead and add it to the
+ // value_node list
+ if(value_node && element->get_attribute("id"))
+ {
+ string id=element->get_attribute("id")->get_value();
+
+ //value_node->set_id(id);
+
+ // If there is already a value_node in the list
+ // with the same ID, then that is an error
+ try { canvas->add_value_node(value_node,id); }
+ catch(Exception::BadLinkName)
+ {
+ warning(element,strprintf(_("Bad ID \"%s\""),id.c_str()));
+ return value_node;
+ }
+ catch(Exception::IDAlreadyExists)
+ {
+ error(element,strprintf(_("Duplicate ID \"%s\""),id.c_str()));
+ return value_node;
+ }
+ catch(...)
+ {
+ error(element,strprintf(_("Unknown Exception thrown when adding ValueNode \"%s\""),id.c_str()));
+ throw;
+ }
+ }
+ value_node->set_guid(guid);
+ return value_node;
+}
+
+void
+CanvasParser::parse_canvas_defs(xmlpp::Element *element,Canvas::Handle canvas)
+{
+ assert(element->get_name()=="defs");
+ xmlpp::Element::NodeList list = element->get_children();
+ for(xmlpp::Element::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ {
+ xmlpp::Element *child(dynamic_cast<xmlpp::Element*>(*iter));
+ if(!child)
+ continue;
+ else
+ if(child->get_name()=="canvas")
+ parse_canvas(child, canvas);
+ else
+ parse_value_node(child,canvas);
+ }
+}
+
+Layer::Handle
+CanvasParser::parse_layer(xmlpp::Element *element,Canvas::Handle canvas)
+{
+
+ assert(element->get_name()=="layer");
+ Layer::Handle layer;
+
+ if(!element->get_attribute("type"))
+ {
+ error(element,_("Missing \"type\" attribute to \"layer\" element"));
+ return Layer::Handle();
+ }
+
+ layer=Layer::create(element->get_attribute("type")->get_value());
+ layer->set_canvas(canvas);
+
+ if(element->get_attribute("group"))
+ {
+ layer->add_to_group(
+ element->get_attribute("group")->get_value()
+ );
+ }
+
+ // Handle the version attribute
+ if(element->get_attribute("version"))
+ {
+ String version(element->get_attribute("version")->get_value());
+ if(version>layer->get_version())
+ warning(element,_("Installed layer version is smaller than layer version in file"));
+ if(version!=layer->get_version())
+ layer->set_version(version);
+ }
+
+ // Handle the description
+ if(element->get_attribute("desc"))
+ layer->set_description(element->get_attribute("desc")->get_value());
+
+ if(element->get_attribute("active"))
+ layer->set_active(element->get_attribute("active")->get_value()=="false"?false:true);
+
+ xmlpp::Element::NodeList list = element->get_children();
+ for(xmlpp::Element::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ {
+ xmlpp::Element *child(dynamic_cast<xmlpp::Element*>(*iter));
+ if(!child)
+ continue;
+ else
+ if(child->get_name()=="name")
+ warning(child,_("<name> entry for <layer> is not yet supported. Ignoring..."));
+ else
+ if(child->get_name()=="desc")
+ warning(child,_("<desc> entry for <layer> is not yet supported. Ignoring..."));
+ else
+ if(child->get_name()=="param")
+ {
+ xmlpp::Element::NodeList list = child->get_children();
+
+ if(!child->get_attribute("name"))
+ {
+ error(child,_("Missing \"name\" attribute for <param>."));
+ continue;
+ }
+
+ String param_name=child->get_attribute("name")->get_value();
+
+ // SVN r2013 and r2014 renamed all 'pos' and 'offset' parameters to 'origin'
+ // 'pos' and 'offset' will appear in old .sif files; handle them correctly
+ if (param_name == "pos" || param_name == "offset")
+ param_name = "origin";
+
+ if(child->get_attribute("use"))
+ {
+ // If the "use" attribute is used, then the
+ // element should be empty. Warn the user if
+ // we find otherwise.
+ if(!list.empty())
+ warning(child,_("Found \"use\" attribute for <param>, but it wasn't empty. Ignoring contents..."));
+
+ String str= child->get_attribute("use")->get_value();
+
+ if (str.empty())
+ error(child,_("Empty use=\"\" value in <param>"));
+ else if(layer->get_param(param_name).get_type()==ValueBase::TYPE_CANVAS)
+ {
+ String warnings;
+ Canvas::Handle c(canvas->surefind_canvas(str, warnings));
+ warnings_text += warnings;
+ if(!c) error((*iter),strprintf(_("Failed to load subcanvas '%s'"), str.c_str()));
+ if(!layer->set_param(param_name,c))
+ error((*iter),_("Layer rejected canvas link"));
+ }
+ else
+ try
+ {
+ handle<ValueNode> value_node=canvas->surefind_value_node(str);
+
+ // Assign the value_node to the dynamic parameter list
+ if (param_name == "segment_list" && (layer->get_name() == "region" || layer->get_name() == "outline"))
+ {
+ synfig::warning("%s: Updated valuenode connection to use the \"bline\" parameter instead of \"segment_list\".",
+ layer->get_name().c_str());
+ param_name = "bline";
+ }
+ layer->connect_dynamic_param(param_name,value_node);
+ }
+ catch(Exception::IDNotFound)
+ {
+ error(child,strprintf(_("Unknown ID (%s) referenced in <param>"),str.c_str()));
+ }
+
+ continue;
+ }
+
+ xmlpp::Element::NodeList::iterator iter;
+
+ // Search for the first non-text XML element
+ for(iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::Element*>(*iter))
+ break;
+ //if(!(!dynamic_cast<xmlpp::Element*>(*iter) && (*iter)->get_name()=="text"||(*iter)->get_name()=="comment" )) break;
+
+ if(iter==list.end())
+ {
+ error(child,_("<param> is either missing its contents, or missing a \"use\" attribute."));
+ continue;
+ }
+
+ // If we recognize the element name as a
+ // ValueBase, then treat is at one
+ if(/*(*iter)->get_name()!="canvas" && */ValueBase::ident_type((*iter)->get_name()) && !dynamic_cast<xmlpp::Element*>(*iter)->get_attribute("guid"))
+ {
+ ValueBase data=parse_value(dynamic_cast<xmlpp::Element*>(*iter),canvas);
+
+ if(!data.is_valid())
+ {
+ error((*iter),_("Bad data for <param>"));
+ continue;
+ }
+
+ // Set the layer's parameter, and make sure that
+ // the layer liked it
+ if(!layer->set_param(param_name,data))
+ {
+ warning((*iter),strprintf(_("Layer '%s' rejected value for parameter '%s'"),
+ element->get_attribute("type")->get_value().c_str(),
+ param_name.c_str()));
+ continue;
+ }
+ }
+ else // ... otherwise, we assume that it is a ValueNode
+ {
+ handle<ValueNode> value_node=parse_value_node(dynamic_cast<xmlpp::Element*>(*iter),canvas);
+
+ if(!value_node)
+ {
+ error((*iter),_("Bad data for <param>"));
+ continue;
+ }
+
+ // Assign the value_node to the dynamic parameter list
+ layer->connect_dynamic_param(param_name,value_node);
+ }
+
+ // Warn if there is trash after the param value
+ for(iter++; iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::Element*>(*iter))
+ warning((*iter),strprintf(_("Unexpected element <%s> after <param> data, ignoring..."),(*iter)->get_name().c_str()));
+ continue;
+ }
+ else
+ error_unexpected_element(child,child->get_name());
+ }
+
+ layer->reset_version();
+ return layer;
+}
+
+Canvas::Handle
+CanvasParser::parse_canvas(xmlpp::Element *element,Canvas::Handle parent,bool inline_, String filename)
+{
+
+ if(element->get_name()!="canvas")
+ {
+ error_unexpected_element(element,element->get_name(),"canvas");
+ return Canvas::Handle();
+ }
+ Canvas::Handle canvas;
+
+
+
+ if(parent && (element->get_attribute("id") || inline_))
+ {
+ if(inline_)
+ {
+ canvas=Canvas::create_inline(parent);
+ }
+ else
+ {
+ try
+ {
+ String warnings;
+ canvas=parent->find_canvas(element->get_attribute("id")->get_value(), warnings);
+ warnings_text += warnings;
+ }
+ catch(...)
+ {
+ canvas=parent->new_child_canvas(element->get_attribute("id")->get_value());
+ }
+ }
+ canvas->rend_desc().clear_flags();
+ }
+ else
+ {
+ canvas=Canvas::create();
+ if(filename=="/dev/stdin")
+ canvas->set_file_name("./stdin.sif");
+ else
+ canvas->set_file_name(filename);
+ canvas->rend_desc().clear_flags();
+ }
+
+ if(element->get_attribute("guid"))
+ {
+ GUID guid(element->get_attribute("guid")->get_value());
+ if(guid_cast<Canvas>(guid))
+ return guid_cast<Canvas>(guid);
+ else
+ canvas->set_guid(guid);
+ }
+
+ if(element->get_attribute("version"))
+ canvas->set_version(element->get_attribute("version")->get_value());
+ else if(parent)
+ canvas->set_version(parent->get_version());
+
+ if(element->get_attribute("width"))
+ {
+ int width = atoi(element->get_attribute("width")->get_value().c_str());
+ if (width < 1)
+ fatal_error(element, _("Canvas with width or height less than one is not allowed"));
+ canvas->rend_desc().set_w(width);
+ }
+
+ if(element->get_attribute("height"))
+ {
+ int height = atoi(element->get_attribute("height")->get_value().c_str());
+ if (height < 1)
+ fatal_error(element, _("Canvas with width or height less than one is not allowed"));
+ canvas->rend_desc().set_h(height);
+ }
+
+ if(element->get_attribute("xres"))
+ canvas->rend_desc().set_x_res(atof(element->get_attribute("xres")->get_value().c_str()));
+
+ if(element->get_attribute("yres"))
+ canvas->rend_desc().set_y_res(atof(element->get_attribute("yres")->get_value().c_str()));
+
+
+ if(element->get_attribute("fps"))
+ canvas->rend_desc().set_frame_rate(atof(element->get_attribute("fps")->get_value().c_str()));
+
+ if(element->get_attribute("start-time"))
+ canvas->rend_desc().set_time_start(Time(element->get_attribute("start-time")->get_value(),canvas->rend_desc().get_frame_rate()));
+
+ if(element->get_attribute("begin-time"))
+ canvas->rend_desc().set_time_start(Time(element->get_attribute("begin-time")->get_value(),canvas->rend_desc().get_frame_rate()));
+
+ if(element->get_attribute("end-time"))
+ canvas->rend_desc().set_time_end(Time(element->get_attribute("end-time")->get_value(),canvas->rend_desc().get_frame_rate()));
+
+ if(element->get_attribute("antialias"))
+ canvas->rend_desc().set_antialias(atoi(element->get_attribute("antialias")->get_value().c_str()));
+
+ if(element->get_attribute("view-box"))
+ {
+ string values=element->get_attribute("view-box")->get_value();
+ Vector
+ tl,
+ br;
+ tl[0]=atof(string(values.data(),values.find(' ')).c_str());
+ values=string(values.begin()+values.find(' ')+1,values.end());
+ tl[1]=atof(string(values.data(),values.find(' ')).c_str());
+ values=string(values.begin()+values.find(' ')+1,values.end());
+ br[0]=atof(string(values.data(),values.find(' ')).c_str());
+ values=string(values.begin()+values.find(' ')+1,values.end());
+ br[1]=atof(values.c_str());
+
+ canvas->rend_desc().set_tl(tl);
+ canvas->rend_desc().set_br(br);
+ }
+
+ if(element->get_attribute("bgcolor"))
+ {
+ string values=element->get_attribute("bgcolor")->get_value();
+ Color bg;
+
+ bg.set_r(atof(string(values.data(),values.find(' ')).c_str()));
+ values=string(values.begin()+values.find(' ')+1,values.end());
+
+ bg.set_g(atof(string(values.data(),values.find(' ')).c_str()));
+ values=string(values.begin()+values.find(' ')+1,values.end());
+
+ bg.set_b(atof(string(values.data(),values.find(' ')).c_str()));
+ values=string(values.begin()+values.find(' ')+1,values.end());
+
+ bg.set_a(atof(values.c_str()));
+
+ canvas->rend_desc().set_bg_color(bg);
+ }
+
+ if(element->get_attribute("focus"))
+ {
+ string values=element->get_attribute("focus")->get_value();
+ Vector focus;
+
+ focus[0]=atof(string(values.data(),values.find(' ')).c_str());
+ values=string(values.begin()+values.find(' ')+1,values.end());
+ focus[1]=atof(values.c_str());
+
+ canvas->rend_desc().set_focus(focus);
+ }
+
+ canvas->rend_desc().set_flags(RendDesc::PX_ASPECT|RendDesc::IM_SPAN);
+
+ xmlpp::Element::NodeList list = element->get_children();
+ for(xmlpp::Element::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ {
+ xmlpp::Element *child(dynamic_cast<xmlpp::Element*>(*iter));
+ if(child)
+ {
+ if(child->get_name()=="defs")
+ {
+ if(canvas->is_inline())
+ error(child,_("Inline canvas cannot have a <defs> section"));
+ parse_canvas_defs(child, canvas);
+ }
+ else
+ if(child->get_name()=="keyframe")
+ {
+ if(canvas->is_inline())
+ {
+ warning(child,_("Inline canvas cannot have keyframes"));
+ continue;
+ }
+
+ canvas->keyframe_list().add(parse_keyframe(child,canvas));
+ canvas->keyframe_list().sync();
+ }
+ else
+ if(child->get_name()=="meta")
+ {
+ if(canvas->is_inline())
+ {
+ warning(child,_("Inline canvases cannot have metadata"));
+ continue;
+ }
+
+ String name,content;
+
+ if(!child->get_attribute("name"))
+ {
+ warning(child,_("<meta> must have a name"));
+ continue;
+ }
+
+ if(!child->get_attribute("content"))
+ {
+ warning(child,_("<meta> must have content"));
+ continue;
+ }
+
+ canvas->set_meta_data(child->get_attribute("name")->get_value(),child->get_attribute("content")->get_value());
+ }
+ else if(child->get_name()=="name")
+ {
+ xmlpp::Element::NodeList list = child->get_children();
+
+ // If we don't have any name, warn
+ if(list.empty())
+ warning(child,_("blank \"name\" entity"));
+
+ string tmp;
+ for(xmlpp::Element::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::TextNode*>(*iter))tmp+=dynamic_cast<xmlpp::TextNode*>(*iter)->get_content();
+ canvas->set_name(tmp);
+ }
+ else
+ if(child->get_name()=="desc")
+ {
+
+ xmlpp::Element::NodeList list = child->get_children();
+
+ // If we don't have any description, warn
+ if(list.empty())
+ warning(child,_("blank \"desc\" entity"));
+
+ string tmp;
+ for(xmlpp::Element::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::TextNode*>(*iter))tmp+=dynamic_cast<xmlpp::TextNode*>(*iter)->get_content();
+ canvas->set_description(tmp);
+ }
+ else
+ if(child->get_name()=="author")
+ {
+
+ xmlpp::Element::NodeList list = child->get_children();
+
+ // If we don't have any description, warn
+ if(list.empty())
+ warning(child,_("blank \"author\" entity"));
+
+ string tmp;
+ for(xmlpp::Element::NodeList::iterator iter = list.begin(); iter != list.end(); ++iter)
+ if(dynamic_cast<xmlpp::TextNode*>(*iter))tmp+=dynamic_cast<xmlpp::TextNode*>(*iter)->get_content();
+ canvas->set_author(tmp);
+ }
+ else
+ if(child->get_name()=="layer")
+ {
+ //if(canvas->is_inline())
+ // canvas->push_front(parse_layer(child,canvas->parent()));
+ //else
+ canvas->push_front(parse_layer(child,canvas));
+ }
+ else
+ error_unexpected_element(child,child->get_name());
+ }
+// else
+// if((child->get_name()=="text"||child->get_name()=="comment") && child->has_child_text())
+// continue;
+ }
+
+ if(canvas->value_node_list().placeholder_count())
+ {
+ String nodes;
+ for (ValueNodeList::const_iterator iter = canvas->value_node_list().begin(); iter != canvas->value_node_list().end(); iter++)
+ if(PlaceholderValueNode::Handle::cast_dynamic(*iter))
+ {
+ if (nodes != "") nodes += ", ";
+ nodes += "'" + (*iter)->get_id() + "'";
+ }
+ error(element,strprintf(_("Canvas '%s' has undefined %s: %s"),
+ canvas->get_id().c_str(),
+ canvas->value_node_list().placeholder_count() == 1 ? _("ValueNode") : _("ValueNodes"),
+ nodes.c_str()));
+ }
+
+ canvas->set_version(CURRENT_CANVAS_VERSION);
+ return canvas;
+}
+
+void
+CanvasParser::register_canvas_in_map(Canvas::Handle canvas, String as)
+{
+ get_open_canvas_map()[etl::absolute_path(as)]=canvas;
+ canvas->signal_deleted().connect(sigc::bind(sigc::ptr_fun(_remove_from_open_canvas_map),canvas.get()));
+ canvas->signal_file_name_changed().connect(sigc::bind(sigc::ptr_fun(_canvas_file_name_changed),canvas.get()));
+}
+
+#ifdef _DEBUG
+void
+CanvasParser::show_canvas_map(String file, int line, String text)
+{
+ return;
+ printf(" .-----\n | %s:%d %s\n", file.c_str(), line, text.c_str());
+ std::map<synfig::String, etl::loose_handle<Canvas> > canvas_map(synfig::get_open_canvas_map());
+ std::map<synfig::String, etl::loose_handle<Canvas> >::iterator iter;
+ for (iter = canvas_map.begin(); iter != canvas_map.end(); iter++)
+ {
+ synfig::String first(iter->first);
+ etl::loose_handle<Canvas> second(iter->second);
+ printf(" | %40s : %lx (%d)\n", first.c_str(), ulong(&*second), second->count());
+ }
+ printf(" `-----\n\n");
+}
+#endif // _DEBUG
+
+Canvas::Handle
+CanvasParser::parse_from_file_as(const String &file_,const String &as_,String &errors)
+{
+ ChangeLocale change_locale(LC_NUMERIC, "C");
+ String file(unix_to_local_path(file_));
+ String as(unix_to_local_path(as_));
+
+ try
+ {
+ if(get_open_canvas_map().count(etl::absolute_path(as)))
+ return get_open_canvas_map()[etl::absolute_path(as)];
+
+ filename=as;
+ total_warnings_=0;
+ xmlpp::DomParser parser(file);
+ if(parser)
+ {
+ Canvas::Handle canvas(parse_canvas(parser.get_document()->get_root_node(),0,false,as));
+ if (!canvas) return canvas;
+ register_canvas_in_map(canvas, as);
+
+ const ValueNodeList& value_node_list(canvas->value_node_list());
+
+ again:
+ ValueNodeList::const_iterator iter;
+ for(iter=value_node_list.begin();iter!=value_node_list.end();++iter)
+ {
+ ValueNode::Handle value_node(*iter);
+ if(value_node->is_exported() && value_node->get_id().find("Unnamed")==0)
+ {
+ canvas->remove_value_node(value_node);
+ goto again;
+ }
+ }
+
+ return canvas;
+ }
+ }
+ catch(Exception::BadLinkName) { synfig::error("BadLinkName Thrown"); }
+ catch(Exception::BadType) { synfig::error("BadType Thrown"); }
+ catch(Exception::FileNotFound) { synfig::error("FileNotFound Thrown"); }
+ catch(Exception::IDNotFound) { synfig::error("IDNotFound Thrown"); }
+ catch(Exception::IDAlreadyExists) { synfig::error("IDAlreadyExists Thrown"); }
+ catch(xmlpp::internal_error x)
+ {
+ if (!strcmp(x.what(), "Couldn't create parsing context"))
+ throw runtime_error(String(" * ") + _("Can't open file") + " \"" + file + "\"");
+ throw;
+ }
+ catch(const std::exception& ex)
+ {
+ synfig::error("Standard Exception: "+String(ex.what()));
+ errors = ex.what();
+ return Canvas::Handle();
+ }
+ catch(const String& str)
+ {
+ cerr<<str<<endl;
+ // synfig::error(str);
+ errors = str;
+ return Canvas::Handle();
+ }
+ return Canvas::Handle();
+}
+
+Canvas::Handle
+CanvasParser::parse_as(xmlpp::Element* node,String &errors)
+{
+ ChangeLocale change_locale(LC_NUMERIC, "C");
+ try
+ {
+ total_warnings_=0;
+ if(node)
+ {
+ Canvas::Handle canvas(parse_canvas(node,0,false,""));
+ if (!canvas) return canvas;
+
+ const ValueNodeList& value_node_list(canvas->value_node_list());
+
+ again:
+ ValueNodeList::const_iterator iter;
+ for(iter=value_node_list.begin();iter!=value_node_list.end();++iter)
+ {
+ ValueNode::Handle value_node(*iter);
+ if(value_node->is_exported() && value_node->get_id().find("Unnamed")==0)
+ {
+ canvas->remove_value_node(value_node);
+ goto again;
+ }
+ }
+
+ return canvas;
+ }
+ }
+ catch(Exception::BadLinkName) { synfig::error("BadLinkName Thrown"); }
+ catch(Exception::BadType) { synfig::error("BadType Thrown"); }
+ catch(Exception::FileNotFound) { synfig::error("FileNotFound Thrown"); }
+ catch(Exception::IDNotFound) { synfig::error("IDNotFound Thrown"); }
+ catch(Exception::IDAlreadyExists) { synfig::error("IDAlreadyExists Thrown"); }
+ catch(xmlpp::internal_error x)
+ {
+ if (!strcmp(x.what(), "Couldn't create parsing context"))
+ throw runtime_error(String(" * ") + _("Can't open file") + " \"" + "\"");
+ throw;
+ }
+ catch(const std::exception& ex)
+ {
+ synfig::error("Standard Exception: "+String(ex.what()));
+ errors = ex.what();
+ return Canvas::Handle();
+ }
+ catch(const String& str)
+ {
+ cerr<<str<<endl;
+ errors = str;
+ return Canvas::Handle();
+ }
+ return Canvas::Handle();
+}
+//extern
+Canvas::Handle
+synfig::open_canvas(xmlpp::Element* node,String &errors,String &warnings){
+ Canvas::Handle canvas;
+ CanvasParser parser;
+ parser.set_allow_errors(true);
+ try
+ {
+ canvas=parser.parse_as(node,errors);
+ }
+ catch (...)
+ {
+ synfig::error("open canvas of a node");
+ throw;
+ }
+
+ warnings = parser.get_warnings_text();
+
+ if(parser.error_count())
+ {
+ errors = parser.get_errors_text();
+ return Canvas::Handle();
+ }
+ return canvas;
+}
+
+
projects / synfig.git / blobdiff