1 /* === S Y N F I G ========================================================= */
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
10 ** This package is free software; you can redistribute it and/or
11 ** modify it under the terms of the GNU General Public License as
12 ** published by the Free Software Foundation; either version 2 of
13 ** the License, or (at your option) any later version.
15 ** This package is distributed in the hope that it will be useful,
16 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
17 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
18 ** General Public License for more details.
21 /* ========================================================================= */
23 /* === S T A R T =========================================================== */
25 #ifndef __SYNFIG_LOADCANVAS_H
26 #define __SYNFIG_LOADCANVAS_H
28 /* === H E A D E R S ======================================================= */
32 #include "valuenode.h"
35 #include "valuenode_subtract.h"
36 #include "valuenode_animated.h"
37 #include "valuenode_composite.h"
38 #include "valuenode_dynamiclist.h"
42 /* === M A C R O S ========================================================= */
44 /* === T Y P E D E F S ===================================================== */
46 /* === C L A S S E S & S T R U C T S ======================================= */
48 namespace xmlpp { class Node; class Element; };
52 /*! \class CanvasParser
58 -- ** -- D A T A -------------------------------------------------------------
78 -- ** -- C O N S T R U C T O R S ---------------------------------------------
91 -- ** -- M E M B E R F U N C T I O N S -------------------------------------
97 CanvasParser &set_allow_errors(bool x) { allow_errors_=x; return *this; }
99 //! Sets the maximum number of warnings before a fatal error is thrown
100 CanvasParser &set_max_warnings(int i) { max_warnings_=i; return *this; }
102 //! Returns the maximum number of warnings before a fatal_error is thrown
103 int get_max_warnings() { return max_warnings_; }
105 //! Returns the number of errors in the last parse
106 int error_count()const { return total_errors_; }
108 //! Returns the number of warnings in the last parse
109 int warning_count()const { return total_warnings_; }
111 void set_path(const synfig::String& x) { path=x; }
113 const synfig::String& get_path()const { return path; }
116 Canvas::Handle parse_from_file(const String &filename);
118 Canvas::Handle parse_from_file_as(const String &filename,const String &as);
121 Canvas::Handle parse_from_string(const String &data);
125 // Error/Warning handling functions
127 void error(xmlpp::Node *node,const String &text);
128 void fatal_error(xmlpp::Node *node,const String &text);
129 void warning(xmlpp::Node *node,const String &text);
130 void error_unexpected_element(xmlpp::Node *node,const String &got, const String &expected);
131 void error_unexpected_element(xmlpp::Node *node,const String &got);
135 Canvas::Handle parse_canvas(xmlpp::Element *node,Canvas::Handle parent=0,bool inline_=false, String path=".");
136 void parse_canvas_defs(xmlpp::Element *node,Canvas::Handle canvas);
137 etl::handle<Layer> parse_layer(xmlpp::Element *node,Canvas::Handle canvas);
138 ValueBase parse_value(xmlpp::Element *node,Canvas::Handle canvas);
139 etl::handle<ValueNode> parse_value_node(xmlpp::Element *node,Canvas::Handle canvas);
141 // ValueBase Parsing Functions
143 Real parse_real(xmlpp::Element *node);
144 Time parse_time(xmlpp::Element *node,Canvas::Handle canvas);
145 int parse_integer(xmlpp::Element *node);
146 Vector parse_vector(xmlpp::Element *node);
147 Color parse_color(xmlpp::Element *node);
148 Angle parse_angle(xmlpp::Element *node);
149 String parse_string(xmlpp::Element *node);
150 bool parse_bool(xmlpp::Element *node);
151 Segment parse_segment(xmlpp::Element *node);
152 ValueBase parse_list(xmlpp::Element *node,Canvas::Handle canvas);
153 Gradient parse_gradient(xmlpp::Element *node);
154 BLinePoint parse_bline_point(xmlpp::Element *node);
156 Keyframe parse_keyframe(xmlpp::Element *node,Canvas::Handle canvas);
158 // ValueNode Parsing Functions
160 etl::handle<ValueNode_Animated> parse_animated(xmlpp::Element *node,Canvas::Handle canvas);
161 etl::handle<ValueNode_Subtract> parse_subtract(xmlpp::Element *node,Canvas::Handle canvas);
162 etl::handle<LinkableValueNode> parse_linkable_value_node(xmlpp::Element *node,Canvas::Handle canvas);
163 etl::handle<ValueNode_Composite> parse_composite(xmlpp::Element *node,Canvas::Handle canvas);
164 etl::handle<ValueNode_DynamicList> parse_dynamic_list(xmlpp::Element *node,Canvas::Handle canvas);
166 }; // END of CanvasParser
168 /* === E X T E R N S ======================================================= */
170 //! Loads a canvas from \a filename
171 /*! \return The Canvas's handle on success, an empty handle on failure */
172 extern Canvas::Handle open_canvas(const String &filename);
173 extern Canvas::Handle open_canvas_as(const String &filename,const String &as);
175 //! Retrieves a Canvas from a string in XML format
176 extern Canvas::Handle string_to_canvas(const String &data);
178 std::map<synfig::String, etl::loose_handle<Canvas> >& get_open_canvas_map();
180 }; // END of namespace synfig
182 /* === E N D =============================================================== */