1 /* === S Y N F I G ========================================================= */
3 ** \brief Canvas Class Implementation
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_CANVAS_H
26 #define __SYNFIG_CANVAS_H
28 /* === H E A D E R S ======================================================= */
33 #include <sigc++/signal.h>
37 #include "canvasbase.h"
38 #include "valuenode.h"
44 /* === M A C R O S ========================================================= */
46 /* === T Y P E D E F S ===================================================== */
48 /* === C L A S S E S & S T R U C T S ======================================= */
58 class Canvas : public CanvasBase, public Node
61 -- ** -- T Y P E S -----------------------------------------------------------
65 typedef etl::handle<Canvas> Handle;
66 typedef etl::loose_handle<Canvas> LooseHandle;
67 typedef etl::handle<const Canvas> ConstHandle;
69 typedef std::list<Handle> Children;
71 friend void synfig::optimize_layers(Context, Canvas::Handle);
74 -- ** -- D A T A -------------------------------------------------------------
79 //! Contains the ID string for the Canvas
80 /*! \see get_id(), set_id() */
83 //! Contains the name of the Canvas
84 /*! \see set_name(), get_name() */
87 //! Contains a description of the Canvas
88 /*! \see set_description(), get_description() */
91 //! Contains the author's name
92 /*! \see set_author(), get_author() */
95 //! Contains the author's email address
96 /*! \todo This private parameter has no binding, so it's unusable at the moment */
99 //! File name of Canvas
100 /*! \see get_file_name(), set_file_name() */
103 //! Metadata map for Canvas.
104 /*! \see get_meta_data(), set_meta_data(), erase_meta_data() */
105 std::map<String, String> meta_data_;
107 //! Contains a list of ValueNodes that are in this Canvas
108 /*! \see value_node_list(), find_value_node() */
109 ValueNodeList value_node_list_;
112 KeyframeList keyframe_list_;
114 //! A handle to the parent canvas of this canvas.
115 /*! If canvas is a root canvas, then this handle is empty
120 //! List containing any child Canvases
121 /*! \see children() */
124 //! Render Description for Canvas
125 /*! \see rend_desc() */
128 //! Contains the value of the last call to set_time()
132 mutable std::map<String,Handle> externals_;
134 //! This flag is set if this canvas is "inline"
137 mutable bool is_dirty_;
141 //! Layer Group database
142 std::map<String,std::set<etl::handle<Layer> > > group_db_;
145 -- ** -- S I G N A L S -------------------------------------------------------
151 sigc::signal<void,String> signal_group_added_;
154 sigc::signal<void,String> signal_group_removed_;
157 sigc::signal<void,String> signal_group_changed_;
159 sigc::signal<void,String,etl::handle<synfig::Layer> > signal_group_pair_added_;
160 sigc::signal<void,String,etl::handle<synfig::Layer> > signal_group_pair_removed_;
163 sigc::signal<void,int*> signal_layers_reordered_;
166 sigc::signal<void> signal_rend_desc_changed_;
169 sigc::signal<void> signal_id_changed_;
172 //sigc::signal<void> signal_dirty_;
175 sigc::signal<void> signal_file_name_changed_;
178 sigc::signal<void, String> signal_meta_data_changed_;
180 //! Key-Specific meta data changed signals
181 std::map<String, sigc::signal<void> > signal_map_meta_data_changed_;
184 //! ValueBasenode Changed
185 sigc::signal<void, etl::handle<ValueNode> > signal_value_node_changed_;
187 sigc::signal<void, etl::handle<ValueNode>, etl::handle<ValueNode> > signal_value_node_child_added_;
189 sigc::signal<void, etl::handle<ValueNode>, etl::handle<ValueNode> > signal_value_node_child_removed_;
192 -- ** -- S I G N A L I N T E R F A C E -------------------------------------
197 sigc::signal<void,String,etl::handle<synfig::Layer> >& signal_group_pair_added() { return signal_group_pair_added_; }
198 sigc::signal<void,String,etl::handle<synfig::Layer> >& signal_group_pair_removed() { return signal_group_pair_removed_; }
201 sigc::signal<void,String>& signal_group_added() { return signal_group_added_; }
204 sigc::signal<void,String>& signal_group_removed() { return signal_group_removed_; }
207 sigc::signal<void,String>& signal_group_changed() { return signal_group_changed_; }
210 sigc::signal<void,int*>& signal_layers_reordered() { return signal_layers_reordered_; }
213 sigc::signal<void>& signal_rend_desc_changed() { return signal_rend_desc_changed_; }
216 sigc::signal<void>& signal_id_changed() { return signal_id_changed_; }
218 //! File name Changed
219 sigc::signal<void>& signal_file_name_changed();
222 sigc::signal<void, String>& signal_meta_data_changed() { return signal_meta_data_changed_; }
225 sigc::signal<void>& signal_meta_data_changed(const String& key) { return signal_map_meta_data_changed_[key]; }
228 sigc::signal<void, etl::handle<ValueNode> >& signal_value_node_changed() { return signal_value_node_changed_; }
231 sigc::signal<void>& signal_dirty() { return signal_changed(); }
234 sigc::signal<void, etl::handle<ValueNode>, etl::handle<ValueNode> >& signal_value_node_child_added() { return signal_value_node_child_added_; }
237 sigc::signal<void, etl::handle<ValueNode>, etl::handle<ValueNode> >& signal_value_node_child_removed() { return signal_value_node_child_removed_; }
240 -- ** -- C O N S T R U C T O R S ---------------------------------------------
245 Canvas(const String &name);
252 -- ** -- M E M B E R F U N C T I O N S -------------------------------------
257 //! Returns the set of layers in group
258 std::set<etl::handle<Layer> > get_layers_in_group(const String&group);
260 //! Gets all the groups
261 std::set<String> get_groups()const;
263 //! Gets the number of groups in this canvas
264 int get_group_count()const;
266 //! Renames the given group
267 void rename_group(const String&old_name,const String&new_name);
270 bool is_inline()const { return is_inline_; }
272 //! Returns a handle to the RendDesc for this Canvas
273 RendDesc &rend_desc() { return desc_; }
275 //! Returns a handle to the RendDesc for this Canvas
276 const RendDesc &rend_desc()const { return desc_; }
278 //! Gets the name of the canvas
279 const String & get_name()const { return name_; }
281 //! Sets the name of the canvas
282 void set_name(const String &x);
284 //! Gets the author of the canvas
285 const String & get_author()const { return author_; }
287 //! Sets the author of the canvas
288 void set_author(const String &x);
290 //! Gets the description of the canvas
291 const String & get_description()const { return description_; }
293 //! Sets the name of the canvas
294 void set_description(const String &x);
296 //! Gets the ID of the canvas
297 const String & get_id()const { return id_; }
299 //! Sets the ID of the canvas
300 void set_id(const String &x);
302 //! Returns the data string for the given meta data key
303 String get_meta_data(const String& key)const;
305 //! Returns a list of meta data keys
306 std::list<String> get_meta_data_keys()const;
308 //! Sets a meta data key to a specific string
309 void set_meta_data(const String& key, const String& data);
311 //! Removes a meta data key
312 void erase_meta_data(const String& key);
315 String get_relative_id(etl::loose_handle<const Canvas> x)const;
317 //! \internal \writeme
318 String _get_relative_id(etl::loose_handle<const Canvas> x)const;
320 //! Returns \c true if the Canvas is a root Canvas. \c false otherwise
321 bool is_root()const { return !parent_; }
323 //! Returns a handle to the parent Canvas.
324 /*! The returned handle will be empty if this is a root canvas */
325 LooseHandle parent()const { return parent_; }
327 LooseHandle get_root()const;
329 //! Returns a list of all child canvases in this canvas
330 std::list<Handle> &children() { return children_; }
332 //! Returns a list of all child canvases in this canvas
333 const std::list<Handle> &children()const { return children_; }
335 //! Gets the color at the specified point
336 //Color get_color(const Point &pos)const;
338 //! Sets the time for all the layers in the canvas
339 void set_time(Time t)const;
342 Time get_time()const { return cur_time_; }
344 //! Returns the number of layers in the canvas
347 //! Removes all the layers from the canvas
350 //! Returns true if the canvas has no layers
353 //! Returns a reference to the ValueNodeList for this Canvas
354 // ValueNodeList &value_node_list() { return value_node_list_; }
356 //! Returns a reference to the ValueNodeList for this Canvas
357 const ValueNodeList &value_node_list()const;
359 //! Returns a reference to the KeyframeList for this Canvas
360 KeyframeList &keyframe_list();
362 //! Returns a reference to the KeyframeList for this Canvas
363 const KeyframeList &keyframe_list()const;
365 //! Finds the ValueNode in the Canvas with the given \a id
366 /*! \return If found, returns a handle to the ValueNode.
367 ** Otherwise, returns an empty handle.
369 ValueNode::Handle find_value_node(const String &id);
371 //! \internal \writeme
372 ValueNode::Handle surefind_value_node(const String &id);
374 //! Finds the ValueNode in the Canvas with the given \a id
375 /*! \return If found, returns a handle to the ValueNode.
376 ** Otherwise, returns an empty handle.
378 ValueNode::ConstHandle find_value_node(const String &id)const;
381 void add_value_node(ValueNode::Handle x, const String &id);
384 //void rename_value_node(ValueNode::Handle x, const String &id);
387 void remove_value_node(ValueNode::Handle x);
390 void remove_value_node(const String &id) { remove_value_node(find_value_node(id)); }
392 //! Finds a child Canvas in the Canvas with the given \a name
393 /*! \return If found, returns a handle to the child Canvas.
394 ** If not found, it creates a new Canvas and returns it
395 ** If an error occurs, it returns an empty handle
397 Handle surefind_canvas(const String &id);
399 //! Finds a child Canvas in the Canvas with the given \a id
400 /*! \return If found, returns a handle to the child Canvas.
401 ** Otherwise, returns an empty handle.
403 Handle find_canvas(const String &id);
405 //! Finds a child Canvas in the Canvas with the given \a id
406 /*! \return If found, returns a handle to the child Canvas.
407 ** Otherwise, returns an empty handle.
409 ConstHandle find_canvas(const String &id)const;
411 //! Sets the file path for the Canvas
412 //void set_file_path(const String &);
414 //! Returns the file path from the file name
415 String get_file_path()const;
417 //! Sets the filename (with path)
418 void set_file_name(const String &);
420 //! Gets the filename (with path)
421 String get_file_name()const;
423 //! Creates a new child canvas, and returns its handle
424 Handle new_child_canvas();
426 //! Creates a new child canvas with an ID of \a id, and returns its handle
427 Handle new_child_canvas(const String &id);
429 //! Adds the given canvas as a child
430 Handle add_child_canvas(Handle child_canvas, const String &id);
432 void remove_child_canvas(Handle child_canvas);
434 etl::handle<Layer> find_layer(const Point &pos);
436 int get_depth(etl::handle<Layer>)const;
438 Context get_context()const;
442 const_iterator end()const;
444 reverse_iterator rbegin();
446 const_reverse_iterator rbegin()const;
448 etl::handle<Layer> &back();
450 void push_back(etl::handle<Layer> x);
452 void push_front(etl::handle<Layer> x);
454 void push_back_simple(etl::handle<Layer> x);
456 void insert(iterator iter,etl::handle<Layer> x);
457 void erase(iterator iter);
459 const etl::handle<Layer> &back()const;
461 void set_inline(LooseHandle parent);
463 static Handle create();
465 static Handle create_inline(Handle parent);
467 Handle clone(const GUID& deriv_guid=GUID())const;
470 void add_group_pair(String group, etl::handle<Layer> layer);
471 void remove_group_pair(String group, etl::handle<Layer> layer);
474 virtual void on_changed();
475 virtual void get_times_vfunc(Node::time_set &set) const;
476 }; // END of class Canvas
478 void optimize_layers(Context context, Canvas::Handle op_canvas);
481 }; // END of namespace synfig
483 /* === E N D =============================================================== */