+++ /dev/null
-/* === S Y N F I G ========================================================= */
-/*! \file canvas.cpp
-** \brief Canvas Class Member Definitions
-**
-** $Id$
-**
-** \legal
-** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
-** Copyright (c) 2007, 2008 Chris Moore
-**
-** 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 ======================================================= */
-
-#define SYNFIG_NO_ANGLE
-
-#ifdef USING_PCH
-# include "pch.h"
-#else
-#ifdef HAVE_CONFIG_H
-# include <config.h>
-#endif
-
-#include "layer.h"
-#include "canvas.h"
-#include <cassert>
-#include "exception.h"
-#include "time.h"
-#include "context.h"
-#include "layer_pastecanvas.h"
-#include "loadcanvas.h"
-#include <sigc++/bind.h>
-
-#endif
-
-using namespace synfig;
-using namespace etl;
-using namespace std;
-
-namespace synfig { extern Canvas::Handle open_canvas(const String &filename, String &errors, String &warnings); };
-
-/* === M A C R O S ========================================================= */
-
-#define ALLOW_CLONE_NON_INLINE_CANVASES
-
-struct _CanvasCounter
-{
- static int counter;
- ~_CanvasCounter()
- {
- if(counter)
- synfig::error("%d canvases not yet deleted!",counter);
- }
-} _canvas_counter;
-
-int _CanvasCounter::counter(0);
-
-/* === G L O B A L S ======================================================= */
-
-/* === P R O C E D U R E S ================================================= */
-
-/* === M E T H O D S ======================================================= */
-
-Canvas::Canvas(const String &id):
- id_ (id),
- version_ (CURRENT_CANVAS_VERSION),
- cur_time_ (0),
- is_inline_ (false),
- is_dirty_ (true),
- op_flag_ (false)
-{
- _CanvasCounter::counter++;
- clear();
-}
-
-void
-Canvas::on_changed()
-{
- is_dirty_=true;
- Node::on_changed();
-}
-
-Canvas::~Canvas()
-{
- // we were having a crash where pastecanvas layers were still
- // refering to a canvas after it had been destroyed; this code
- // will stop the pastecanvas layers from refering to the canvas
- // before the canvas is destroyed
-
- // the set_sub_canvas(0) ends up deleting the parent-child link,
- // which deletes the current element from the set we're iterating
- // through, so we have to make sure we've incremented the iterator
- // before we mess with the pastecanvas
- std::set<Node*>::iterator iter = parent_set.begin();
- while (iter != parent_set.end())
- {
- Layer_PasteCanvas* paste_canvas = dynamic_cast<Layer_PasteCanvas*>(*iter);
- iter++;
- if(paste_canvas)
- paste_canvas->set_sub_canvas(0);
- else
- warning("destroyed canvas has a parent that is not a pastecanvas - please report if repeatable");
- }
-
- //if(is_inline() && parent_) assert(0);
- _CanvasCounter::counter--;
- clear();
- begin_delete();
-}
-
-Canvas::iterator
-Canvas::end()
-{
- return CanvasBase::end()-1;
-}
-
-Canvas::const_iterator
-Canvas::end()const
-{
- return CanvasBase::end()-1;
-}
-
-Canvas::reverse_iterator
-Canvas::rbegin()
-{
- return CanvasBase::rbegin()+1;
-}
-
-Canvas::const_reverse_iterator
-Canvas::rbegin()const
-{
- return CanvasBase::rbegin()+1;
-}
-
-int
-Canvas::size()const
-{
- return CanvasBase::size()-1;
-}
-
-void
-Canvas::clear()
-{
- while(!empty())
- {
- Layer::Handle layer(front());
- //if(layer->count()>2)synfig::info("before layer->count()=%d",layer->count());
-
- erase(begin());
- //if(layer->count()>1)synfig::info("after layer->count()=%d",layer->count());
- }
- //CanvasBase::clear();
-
- // We need to keep a blank handle at the
- // end of the image list, and acts at
- // the bottom. Without it, the layers
- // would just continue going when polled
- // for a color.
- CanvasBase::push_back(Layer::Handle());
-
- changed();
-}
-
-bool
-Canvas::empty()const
-{
- return CanvasBase::size()<=1;
-}
-
-Layer::Handle &
-Canvas::back()
-{
- return *(CanvasBase::end()-1);
-}
-
-const Layer::Handle &
-Canvas::back()const
-{
- return *(CanvasBase::end()-1);
-}
-
-Context
-Canvas::get_context()const
-{
- return begin();
-}
-
-const ValueNodeList &
-Canvas::value_node_list()const
-{
- if(is_inline() && parent_)
- return parent_->value_node_list();
- return value_node_list_;
-}
-
-KeyframeList &
-Canvas::keyframe_list()
-{
- if(is_inline() && parent_)
- return parent_->keyframe_list();
- return keyframe_list_;
-}
-
-const KeyframeList &
-Canvas::keyframe_list()const
-{
- if(is_inline() && parent_)
- return parent_->keyframe_list();
- return keyframe_list_;
-}
-
-etl::handle<Layer>
-Canvas::find_layer(const Point &pos)
-{
- return get_context().hit_check(pos);
-}
-
-static bool
-valid_id(const String &x)
-{
- static const char bad_chars[]=" :#@$^&()*";
- unsigned int i;
-
- if(!x.empty() && x[0]>='0' && x[0]<='9')
- return false;
-
- for(i=0;i<sizeof(bad_chars);i++)
- if(x.find_first_of(bad_chars[i])!=string::npos)
- return false;
-
- return true;
-}
-
-void
-Canvas::set_id(const String &x)
-{
- if(is_inline() && parent_)
- throw runtime_error("Inline Canvas cannot have an ID");
-
- if(!valid_id(x))
- throw runtime_error("Invalid ID");
- id_=x;
- signal_id_changed_();
-}
-
-void
-Canvas::set_name(const String &x)
-{
- name_=x;
- signal_meta_data_changed()("name");
- signal_meta_data_changed("name")();
-}
-
-void
-Canvas::set_author(const String &x)
-{
- author_=x;
- signal_meta_data_changed()("author");
- signal_meta_data_changed("author")();
-}
-
-void
-Canvas::set_description(const String &x)
-{
- description_=x;
- signal_meta_data_changed()("description");
- signal_meta_data_changed("description")();
-}
-
-void
-Canvas::set_time(Time t)const
-{
- if(is_dirty_ || !get_time().is_equal(t))
- {
-#if 0
- if(is_root())
- {
- synfig::info("is_dirty_=%d",is_dirty_);
- synfig::info("get_time()=%f",(float)get_time());
- synfig::info("t=%f",(float)t);
- }
-#endif
-
- // ...questionable
- const_cast<Canvas&>(*this).cur_time_=t;
-
- is_dirty_=false;
- get_context().set_time(t);
- }
- is_dirty_=false;
-}
-
-Canvas::LooseHandle
-Canvas::get_root()const
-{
- return parent_?parent_->get_root().get():const_cast<synfig::Canvas *>(this);
-}
-
-int
-Canvas::get_depth(etl::handle<Layer> layer)const
-{
- const_iterator iter;
- int i(0);
- for(iter=begin();iter!=end();++iter,i++)
- {
- if(layer==*iter)
- return i;
- }
- return -1;
-}
-
-String
-Canvas::get_relative_id(etl::loose_handle<const Canvas> x)const
-{
- if(x->get_root()==this)
- return ":";
- if(is_inline() && parent_)
- return parent_->_get_relative_id(x);
- return _get_relative_id(x);
-}
-
-String
-Canvas::_get_relative_id(etl::loose_handle<const Canvas> x)const
-{
- if(is_inline() && parent_)
- return parent_->_get_relative_id(x);
-
- if(x.get()==this)
- return String();
-
- if(parent()==x.get())
- return get_id();
-
- String id;
-
- const Canvas* canvas=this;
-
- for(;!canvas->is_root();canvas=canvas->parent().get())
- id=':'+canvas->get_id()+id;
-
- if(x && get_root()!=x->get_root())
- {
- //String file_name=get_file_name();
- //String file_path=x->get_file_path();
-
- String file_name;
- if(is_absolute_path(get_file_name()))
- file_name=etl::relative_path(x->get_file_path(),get_file_name());
- else
- file_name=get_file_name();
-
- // If the path of X is inside of file_name,
- // then remove it.
- //if(file_name.size()>file_path.size())
- // if(file_path==String(file_name,0,file_path.size()))
- // file_name.erase(0,file_path.size()+1);
-
- id=file_name+'#'+id;
- }
-
- return id;
-}
-
-ValueNode::Handle
-Canvas::find_value_node(const String &id)
-{
- return
- ValueNode::Handle::cast_const(
- const_cast<const Canvas*>(this)->find_value_node(id)
- );
-}
-
-ValueNode::ConstHandle
-Canvas::find_value_node(const String &id)const
-{
- if(is_inline() && parent_)
- return parent_->find_value_node(id);
-
- if(id.empty())
- throw Exception::IDNotFound("Empty ID");
-
- // If we do not have any resolution, then we assume that the
- // request is for this immediate canvas
- if(id.find_first_of(':')==string::npos && id.find_first_of('#')==string::npos)
- return value_node_list_.find(id);
-
- String canvas_id(id,0,id.rfind(':'));
- String value_node_id(id,id.rfind(':')+1);
- if(canvas_id.empty())
- canvas_id=':';
- //synfig::warning("constfind:value_node_id: "+value_node_id);
- //synfig::warning("constfind:canvas_id: "+canvas_id);
-
- String warnings;
- return find_canvas(canvas_id, warnings)->value_node_list_.find(value_node_id);
-}
-
-ValueNode::Handle
-Canvas::surefind_value_node(const String &id)
-{
- if(is_inline() && parent_)
- return parent_->surefind_value_node(id);
-
- if(id.empty())
- throw Exception::IDNotFound("Empty ID");
-
- // If we do not have any resolution, then we assume that the
- // request is for this immediate canvas
- if(id.find_first_of(':')==string::npos && id.find_first_of('#')==string::npos)
- return value_node_list_.surefind(id);
-
- String canvas_id(id,0,id.rfind(':'));
- String value_node_id(id,id.rfind(':')+1);
- if(canvas_id.empty())
- canvas_id=':';
-
- String warnings;
- return surefind_canvas(canvas_id,warnings)->value_node_list_.surefind(value_node_id);
-}
-
-void
-Canvas::add_value_node(ValueNode::Handle x, const String &id)
-{
- if(is_inline() && parent_)
- return parent_->add_value_node(x,id);
-// throw runtime_error("You cannot add a ValueNode to an inline Canvas");
-
- if(x->is_exported())
- throw runtime_error("ValueNode is already exported");
-
- if(id.empty())
- throw Exception::BadLinkName("Empty ID");
-
- if(id.find_first_of(':',0)!=string::npos)
- throw Exception::BadLinkName("Bad character");
-
- try
- {
- if(PlaceholderValueNode::Handle::cast_dynamic(value_node_list_.find(id)))
- throw Exception::IDNotFound("add_value_node()");
-
- throw Exception::IDAlreadyExists(id);
- }
- catch(Exception::IDNotFound)
- {
- x->set_id(id);
-
- x->set_parent_canvas(this);
-
- if(!value_node_list_.add(x))
- {
- synfig::error("Unable to add ValueNode");
- throw std::runtime_error("Unable to add ValueNode");
- }
-
- return;
- }
-}
-
-/*
-void
-Canvas::rename_value_node(ValueNode::Handle x, const String &id)
-{
- if(id.empty())
- throw Exception::BadLinkName("Empty ID");
-
- if(id.find_first_of(": ",0)!=string::npos)
- throw Exception::BadLinkName("Bad character");
-
- try
- {
- if(PlaceholderValueNode::Handle::cast_dynamic(value_node_list_.find(id)))
- throw Exception::IDNotFound("rename_value_node");
- throw Exception::IDAlreadyExists(id);
- }
- catch(Exception::IDNotFound)
- {
- x->set_id(id);
-
- return;
- }
-}
-*/
-
-void
-Canvas::remove_value_node(ValueNode::Handle x)
-{
- if(is_inline() && parent_)
- return parent_->remove_value_node(x);
-// throw Exception::IDNotFound("Canvas::remove_value_node() was called from an inline canvas");
-
- if(!x)
- throw Exception::IDNotFound("Canvas::remove_value_node() was passed empty handle");
-
- if(!value_node_list_.erase(x))
- throw Exception::IDNotFound("Canvas::remove_value_node(): ValueNode was not found inside of this canvas");
-
- //x->set_parent_canvas(0);
-
- x->set_id("");
-}
-
-Canvas::Handle
-Canvas::surefind_canvas(const String &id, String &warnings)
-{
- if(is_inline() && parent_)
- return parent_->surefind_canvas(id,warnings);
-
- if(id.empty())
- return this;
-
- // If the ID contains a "#" character, then a filename is
- // expected on the left side.
- if(id.find_first_of('#')!=string::npos)
- {
- // If '#' is the first character, remove it
- // and attempt to parse the ID again.
- if(id[0]=='#')
- return surefind_canvas(String(id,1),warnings);
-
- //! \todo This needs a lot more optimization
- String file_name(id,0,id.find_first_of('#'));
- String external_id(id,id.find_first_of('#')+1);
-
- file_name=unix_to_local_path(file_name);
-
- Canvas::Handle external_canvas;
-
- if(!is_absolute_path(file_name))
- file_name = get_file_path()+ETL_DIRECTORY_SEPARATOR+file_name;
-
- // If the composition is already open, then use it.
- if(externals_.count(file_name))
- external_canvas=externals_[file_name];
- else
- {
- String errors;
- external_canvas=open_canvas(file_name, errors, warnings);
- if(!external_canvas)
- throw runtime_error(errors);
- externals_[file_name]=external_canvas;
- }
-
- return Handle::cast_const(external_canvas.constant()->find_canvas(external_id, warnings));
- }
-
- // If we do not have any resolution, then we assume that the
- // request is for this immediate canvas
- if(id.find_first_of(':')==string::npos)
- {
- Children::iterator iter;
-
- // Search for the image in the image list,
- // and return it if it is found
- for(iter=children().begin();iter!=children().end();iter++)
- if(id==(*iter)->get_id())
- return *iter;
-
- // Create a new canvas and return it
- //synfig::warning("Implicitly creating canvas named "+id);
- return new_child_canvas(id);
- }
-
- // If the first character is the separator, then
- // this references the root canvas.
- if(id[0]==':')
- return get_root()->surefind_canvas(string(id,1),warnings);
-
- // Now we know that the requested Canvas is in a child
- // of this canvas. We have to find that canvas and
- // call "find_canvas" on it, and return the result.
-
- String canvas_name=string(id,0,id.find_first_of(':'));
-
- Canvas::Handle child_canvas=surefind_canvas(canvas_name,warnings);
-
- return child_canvas->surefind_canvas(string(id,id.find_first_of(':')+1),warnings);
-}
-
-Canvas::Handle
-Canvas::find_canvas(const String &id, String &warnings)
-{
- return
- Canvas::Handle::cast_const(
- const_cast<const Canvas*>(this)->find_canvas(id, warnings)
- );
-}
-
-Canvas::ConstHandle
-Canvas::find_canvas(const String &id, String &warnings)const
-{
- if(is_inline() && parent_)
- return parent_->find_canvas(id, warnings);
-
- if(id.empty())
- return this;
-
- // If the ID contains a "#" character, then a filename is
- // expected on the left side.
- if(id.find_first_of('#')!=string::npos)
- {
- // If '#' is the first character, remove it
- // and attempt to parse the ID again.
- if(id[0]=='#')
- return find_canvas(String(id,1), warnings);
-
- //! \todo This needs a lot more optimization
- String file_name(id,0,id.find_first_of('#'));
- String external_id(id,id.find_first_of('#')+1);
-
- file_name=unix_to_local_path(file_name);
-
- Canvas::Handle external_canvas;
-
- if(!is_absolute_path(file_name))
- file_name = get_file_path()+ETL_DIRECTORY_SEPARATOR+file_name;
-
- // If the composition is already open, then use it.
- if(externals_.count(file_name))
- external_canvas=externals_[file_name];
- else
- {
- String errors, warnings;
- external_canvas=open_canvas(file_name, errors, warnings);
- if(!external_canvas)
- throw runtime_error(errors);
- externals_[file_name]=external_canvas;
- }
-
- return Handle::cast_const(external_canvas.constant()->find_canvas(external_id, warnings));
- }
-
- // If we do not have any resolution, then we assume that the
- // request is for this immediate canvas
- if(id.find_first_of(':')==string::npos)
- {
- Children::const_iterator iter;
-
- // Search for the image in the image list,
- // and return it if it is found
- for(iter=children().begin();iter!=children().end();iter++)
- if(id==(*iter)->get_id())
- return *iter;
-
- throw Exception::IDNotFound("Child Canvas in Parent Canvas: (child)"+id);
- }
-
- // If the first character is the separator, then
- // this references the root canvas.
- if(id[0]==':')
- return get_root()->find_canvas(string(id,1), warnings);
-
- // Now we know that the requested Canvas is in a child
- // of this canvas. We have to find that canvas and
- // call "find_canvas" on it, and return the result.
-
- String canvas_name=string(id,0,id.find_first_of(':'));
-
- Canvas::ConstHandle child_canvas=find_canvas(canvas_name, warnings);
-
- return child_canvas->find_canvas(string(id,id.find_first_of(':')+1), warnings);
-}
-
-Canvas::Handle
-Canvas::create()
-{
- return new Canvas("Untitled");
-}
-
-void
-Canvas::push_back(etl::handle<Layer> x)
-{
-// int i(x->count());
- insert(end(),x);
- //if(x->count()!=i+1)synfig::info("push_back before %d, after %d",i,x->count());
-}
-
-void
-Canvas::push_front(etl::handle<Layer> x)
-{
-// int i(x->count());
- insert(begin(),x);
- //if(x->count()!=i+1)synfig::error("push_front before %d, after %d",i,x->count());
-}
-
-void
-Canvas::insert(iterator iter,etl::handle<Layer> x)
-{
-// int i(x->count());
- CanvasBase::insert(iter,x);
-
- /*if(x->count()!=i+1)
- {
- synfig::error(__FILE__":%d: Canvas::insert(): ***FAILURE*** before %d, after %d",__LINE__,i,x->count());
- return;
- //throw runtime_error("Canvas Insertion Failed");
- }*/
-
- x->set_canvas(this);
-
- add_child(x.get());
-
- LooseHandle correct_canvas(this);
- //while(correct_canvas->is_inline())correct_canvas=correct_canvas->parent();
- Layer::LooseHandle loose_layer(x);
-
- add_connection(loose_layer,
- sigc::connection::connection(
- x->signal_added_to_group().connect(
- sigc::bind(
- sigc::mem_fun(
- *correct_canvas,
- &Canvas::add_group_pair),
- loose_layer))));
- add_connection(loose_layer,
- sigc::connection::connection(
- x->signal_removed_from_group().connect(
- sigc::bind(
- sigc::mem_fun(
- *correct_canvas,
- &Canvas::remove_group_pair),
- loose_layer))));
-
- if(!x->get_group().empty())
- add_group_pair(x->get_group(),x);
-
- changed();
-}
-
-void
-Canvas::push_back_simple(etl::handle<Layer> x)
-{
- CanvasBase::insert(end(),x);
- changed();
-}
-
-void
-Canvas::erase(iterator iter)
-{
- if(!(*iter)->get_group().empty())
- remove_group_pair((*iter)->get_group(),(*iter));
-
- // HACK: We really shouldn't be wiping
- // out these signals entirely. We should
- // only be removing the specific connections
- // that we made. At the moment, I'm too
- // lazy to add the code to keep track
- // of those connections, and no one else
- // is using these signals, so I'll just
- // leave these next two lines like they
- // are for now - darco 07-30-2004
-
- // so don't wipe them out entirely
- // - dooglus 09-21-2007
- disconnect_connections(*iter);
-
- if(!op_flag_)remove_child(iter->get());
-
- CanvasBase::erase(iter);
- if(!op_flag_)changed();
-}
-
-Canvas::Handle
-Canvas::clone(const GUID& deriv_guid)const
-{
- synfig::String name;
- if(is_inline())
- name="inline";
- else
- {
- name=get_id()+"_CLONE";
-
-#ifndef ALLOW_CLONE_NON_INLINE_CANVASES
- throw runtime_error("Cloning of non-inline canvases is not yet supported");
-#endif // ALLOW_CLONE_NON_INLINE_CANVASES
- }
-
- Handle canvas(new Canvas(name));
-
- if(is_inline())
- {
- canvas->is_inline_=true;
- // \todo this was setting parent_=0 - is there a reason for that?
- // this was causing bug 1838132, where cloning an inline canvas that contains an imported image fails
- // it was failing to ascertain the absolute pathname of the imported image, since it needs the pathname
- // of the canvas to get that, which is stored in the parent canvas
- canvas->parent_=parent();
- canvas->rend_desc() = rend_desc();
- //canvas->set_inline(parent());
- }
-
- canvas->set_guid(get_guid()^deriv_guid);
-
- const_iterator iter;
- for(iter=begin();iter!=end();++iter)
- {
- Layer::Handle layer((*iter)->clone(deriv_guid));
- if(layer)
- {
- assert(layer.count()==1);
- int presize(size());
- canvas->push_back(layer);
- if(!(layer.count()>1))
- {
- synfig::error("Canvas::clone(): Cloned layer insertion failure!");
- synfig::error("Canvas::clone(): \tlayer.count()=%d",layer.count());
- synfig::error("Canvas::clone(): \tlayer->get_name()=%s",layer->get_name().c_str());
- synfig::error("Canvas::clone(): \tbefore size()=%d",presize);
- synfig::error("Canvas::clone(): \tafter size()=%d",size());
- }
- assert(layer.count()>1);
- }
- else
- {
- synfig::error("Unable to clone layer");
- }
- }
-
- canvas->signal_group_pair_removed().clear();
- canvas->signal_group_pair_added().clear();
-
- return canvas;
-}
-
-void
-Canvas::set_inline(LooseHandle parent)
-{
- if(is_inline_ && parent_)
- {
-
- }
-
- id_="inline";
- is_inline_=true;
- parent_=parent;
-
- // Have the parent inherit all of the group stuff
-
- std::map<String,std::set<etl::handle<Layer> > >::const_iterator iter;
-
- for(iter=group_db_.begin();iter!=group_db_.end();++iter)
- {
- parent->group_db_[iter->first].insert(iter->second.begin(),iter->second.end());
- }
-
- rend_desc()=parent->rend_desc();
-}
-
-Canvas::Handle
-Canvas::create_inline(Handle parent)
-{
- assert(parent);
- //if(parent->is_inline())
- // return create_inline(parent->parent());
-
- Handle canvas(new Canvas("inline"));
- canvas->set_inline(parent);
- return canvas;
-}
-
-Canvas::Handle
-Canvas::new_child_canvas()
-{
- if(is_inline() && parent_)
- return parent_->new_child_canvas();
-// runtime_error("You cannot create a child Canvas in an inline Canvas");
-
- // Create a new canvas
- children().push_back(create());
- Canvas::Handle canvas(children().back());
-
- canvas->parent_=this;
-
- canvas->rend_desc()=rend_desc();
-
- return canvas;
-}
-
-Canvas::Handle
-Canvas::new_child_canvas(const String &id)
-{
- if(is_inline() && parent_)
- return parent_->new_child_canvas(id);
-// runtime_error("You cannot create a child Canvas in an inline Canvas");
-
- // Create a new canvas
- children().push_back(create());
- Canvas::Handle canvas(children().back());
-
- canvas->set_id(id);
- canvas->parent_=this;
- canvas->rend_desc()=rend_desc();
-
- return canvas;
-}
-
-Canvas::Handle
-Canvas::add_child_canvas(Canvas::Handle child_canvas, const synfig::String& id)
-{
- if(is_inline() && parent_)
- return parent_->add_child_canvas(child_canvas,id);
-
- if(child_canvas->parent() && !child_canvas->is_inline())
- throw std::runtime_error("Cannot add child canvas because it belongs to someone else!");
-
- if(!valid_id(id))
- throw runtime_error("Invalid ID");
-
- try
- {
- String warnings;
- find_canvas(id, warnings);
- throw Exception::IDAlreadyExists(id);
- }
- catch(Exception::IDNotFound)
- {
- if(child_canvas->is_inline())
- child_canvas->is_inline_=false;
- child_canvas->id_=id;
- children().push_back(child_canvas);
- child_canvas->parent_=this;
- }
-
- return child_canvas;
-}
-
-void
-Canvas::remove_child_canvas(Canvas::Handle child_canvas)
-{
- if(is_inline() && parent_)
- return parent_->remove_child_canvas(child_canvas);
-
- if(child_canvas->parent_!=this)
- throw runtime_error("Given child does not belong to me");
-
- if(find(children().begin(),children().end(),child_canvas)==children().end())
- throw Exception::IDNotFound(child_canvas->get_id());
-
- children().remove(child_canvas);
-
- child_canvas->parent_=0;
-}
-
-void
-Canvas::set_file_name(const String &file_name)
-{
- if(parent())
- parent()->set_file_name(file_name);
- else
- {
- String old_name(file_name_);
- file_name_=file_name;
-
- // when a canvas is made, its name is ""
- // then, before it's saved or even edited, it gets a name like "Synfig Animation 23", in the local language
- // we don't want to register the canvas' filename in the canvas map until it gets a real filename
- if (old_name != "")
- {
- file_name_=file_name;
- 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==this)
- break;
- if (iter == get_open_canvas_map().end())
- CanvasParser::register_canvas_in_map(this, file_name);
- else
- signal_file_name_changed_();
- }
- }
-}
-
-sigc::signal<void>&
-Canvas::signal_file_name_changed()
-{
- if(parent())
- return parent()->signal_file_name_changed();
- else
- return signal_file_name_changed_;
-}
-
-String
-Canvas::get_file_name()const
-{
- if(parent())
- return parent()->get_file_name();
- return file_name_;
-}
-
-String
-Canvas::get_file_path()const
-{
- if(parent())
- return parent()->get_file_path();
- return dirname(file_name_);
-}
-
-String
-Canvas::get_meta_data(const String& key)const
-{
- if(!meta_data_.count(key))
- return String();
- return meta_data_.find(key)->second;
-}
-
-void
-Canvas::set_meta_data(const String& key, const String& data)
-{
- if(meta_data_[key]!=data)
- {
- meta_data_[key]=data;
- signal_meta_data_changed()(key);
- signal_meta_data_changed(key)();
- }
-}
-
-void
-Canvas::erase_meta_data(const String& key)
-{
- if(meta_data_.count(key))
- {
- meta_data_.erase(key);
- signal_meta_data_changed()(key);
- signal_meta_data_changed(key)();
- }
-}
-
-std::list<String>
-Canvas::get_meta_data_keys()const
-{
- std::list<String> ret;
-
- std::map<String,String>::const_iterator iter;
-
- for(iter=meta_data_.begin();!(iter==meta_data_.end());++iter)
- ret.push_back(iter->first);
-
- return ret;
-}
-
-/* note - the "Motion Blur" and "Duplicate" layers need the dynamic
- parameters of any PasteCanvas layers they loop over to be
- maintained. When the variables in the following function
- refer to "motion blur", they mean either of these two
- layers. */
-void
-synfig::optimize_layers(Time time, Context context, Canvas::Handle op_canvas, bool seen_motion_blur_in_parent)
-{
- Context iter;
-
- std::vector< std::pair<float,Layer::Handle> > sort_list;
- int i, motion_blur_i=0; // motion_blur_i is for resolving which layer comes first in the event of a z_depth tie
- float motion_blur_z_depth=0; // the z_depth of the least deep motion blur layer in this context
- bool seen_motion_blur_locally = false;
- bool motion_blurred; // the final result - is this layer blurred or not?
-
- // If the parent didn't cause us to already be motion blurred,
- // check whether there's a motion blur in this context,
- // and if so, calculate its z_depth.
- if (!seen_motion_blur_in_parent)
- for(iter=context,i=0;*iter;iter++,i++)
- {
- Layer::Handle layer=*iter;
-
- // If the layer isn't active, don't worry about it
- if(!layer->active())
- continue;
-
- // Any layer with an amount of zero is implicitly disabled.
- ValueBase value(layer->get_param("amount"));
- if(value.get_type()==ValueBase::TYPE_REAL && value.get(Real())==0)
- continue;
-
- if(layer->get_name()=="MotionBlur" || layer->get_name()=="duplicate")
- {
- float z_depth(layer->get_z_depth()*1.0001+i);
-
- // If we've seen a motion blur before in this context...
- if (seen_motion_blur_locally)
- {
- // ... then we're only interested in this one if it's less deep...
- if (z_depth < motion_blur_z_depth)
- {
- motion_blur_z_depth = z_depth;
- motion_blur_i = i;
- }
- }
- // ... otherwise we're always interested in it.
- else
- {
- motion_blur_z_depth = z_depth;
- motion_blur_i = i;
- seen_motion_blur_locally = true;
- }
- }
- }
-
- // Go ahead and start romping through the canvas to paste
- for(iter=context,i=0;*iter;iter++,i++)
- {
- Layer::Handle layer=*iter;
- float z_depth(layer->get_z_depth()*1.0001+i);
-
- // If the layer isn't active, don't worry about it
- if(!layer->active())
- continue;
-
- // Any layer with an amount of zero is implicitly disabled.
- ValueBase value(layer->get_param("amount"));
- if(value.get_type()==ValueBase::TYPE_REAL && value.get(Real())==0)
- continue;
-
- // note: this used to include "&& paste_canvas->get_time_offset()==0", but then
- // time-shifted layers weren't being sorted by z-depth (bug #1806852)
- if(layer->get_name()=="PasteCanvas")
- {
- Layer_PasteCanvas* paste_canvas(static_cast<Layer_PasteCanvas*>(layer.get()));
-
- // we need to blur the sub canvas if:
- // our parent is blurred,
- // or the child is lower than a local blur,
- // or the child is at the same z_depth as a local blur, but later in the context
-
-#if 0 // DEBUG
- if (seen_motion_blur_in_parent) synfig::info("seen BLUR in parent\n");
- else if (seen_motion_blur_locally)
- if (z_depth > motion_blur_z_depth) synfig::info("paste is deeper than BLUR\n");
- else if (z_depth == motion_blur_z_depth) { synfig::info("paste is same depth as BLUR\n");
- if (i > motion_blur_i) synfig::info("paste is physically deeper than BLUR\n");
- else synfig::info("paste is less physically deep than BLUR\n");
- } else synfig::info("paste is less deep than BLUR\n");
- else synfig::info("no BLUR at all\n");
-#endif // DEBUG
-
- motion_blurred = (seen_motion_blur_in_parent ||
- (seen_motion_blur_locally &&
- (z_depth > motion_blur_z_depth ||
- (z_depth == motion_blur_z_depth && i > motion_blur_i))));
-
- Canvas::Handle sub_canvas(Canvas::create_inline(op_canvas));
- Canvas::Handle paste_sub_canvas = paste_canvas->get_sub_canvas();
- if(paste_sub_canvas)
- optimize_layers(time, paste_sub_canvas->get_context(),sub_canvas,motion_blurred);
-
-// \todo: uncommenting the following breaks the rendering of at least examples/backdrop.sifz quite severely
-// #define SYNFIG_OPTIMIZE_PASTE_CANVAS
-#ifdef SYNFIG_OPTIMIZE_PASTE_CANVAS
- Canvas::iterator sub_iter;
-
- // Determine if we can just remove the paste canvas altogether
- if (paste_canvas->get_blend_method() == Color::BLEND_COMPOSITE &&
- paste_canvas->get_amount() == 1.0f &&
- paste_canvas->get_zoom() == 0 &&
- paste_canvas->get_time_offset() == 0 &&
- paste_canvas->get_origin() == Point(0,0) )
- try {
- for(sub_iter=sub_canvas->begin();sub_iter!=sub_canvas->end();++sub_iter)
- {
- Layer* layer=sub_iter->get();
-
- // any layers that deform end up breaking things
- // so do things the old way if we run into anything like this
- if(!dynamic_cast<Layer_NoDeform*>(layer))
- throw int();
-
- ValueBase value(layer->get_param("blend_method"));
- if(value.get_type()!=ValueBase::TYPE_INTEGER || value.get(int())!=(int)Color::BLEND_COMPOSITE)
- throw int();
- }
-
- // It has turned out that we don't need a paste canvas
- // layer, so just go ahead and add all the layers onto
- // the current stack and be done with it
- while(sub_canvas->size())
- {
- sort_list.push_back(std::pair<float,Layer::Handle>(z_depth,sub_canvas->front()));
- //op_canvas->push_back_simple(sub_canvas->front());
- sub_canvas->pop_front();
- }
- continue;
- }
- catch(int)
- { }
-#endif // SYNFIG_OPTIMIZE_PASTE_CANVAS
-
- Layer::Handle new_layer(Layer::create("PasteCanvas"));
- dynamic_cast<Layer_PasteCanvas*>(new_layer.get())->set_muck_with_time(false);
- if (motion_blurred)
- {
- Layer::DynamicParamList dynamic_param_list(paste_canvas->dynamic_param_list());
- for(Layer::DynamicParamList::const_iterator iter(dynamic_param_list.begin()); iter != dynamic_param_list.end(); ++iter)
- new_layer->connect_dynamic_param(iter->first, iter->second);
- }
- Layer::ParamList param_list(paste_canvas->get_param_list());
- //param_list.erase("canvas");
- new_layer->set_param_list(param_list);
- dynamic_cast<Layer_PasteCanvas*>(new_layer.get())->set_sub_canvas(sub_canvas);
- dynamic_cast<Layer_PasteCanvas*>(new_layer.get())->set_muck_with_time(true);
- layer=new_layer;
- }
- else // not a PasteCanvas - does it use blend method 'Straight'?
- {
- /* when we use the 'straight' blend method, every pixel on the layer affects the layers underneath,
- * not just the non-transparent pixels; the following workarea wraps non-pastecanvas layers in a
- * new pastecanvas to ensure that the straight blend affects the full plane, not just the area
- * within the layer's bounding box
- */
-
- // \todo: this code probably needs modification to work properly with motionblur and duplicate
- etl::handle<Layer_Composite> composite = etl::handle<Layer_Composite>::cast_dynamic(layer);
-
- /* some layers (such as circle) don't touch pixels that aren't
- * part of the circle, so they don't get blended correctly when
- * using a straight blend. so we encapsulate the circle, and the
- * encapsulation layer takes care of the transparent pixels
- * for us. if we do that for all layers, however, then the
- * distortion layers no longer work, since they have no
- * context to work on. the Layer::reads_context() method
- * returns true for layers which need to be able to see
- * their context. we can't encapsulate those.
- */
- if (composite &&
- Color::is_straight(composite->get_blend_method()) &&
- !composite->reads_context())
- {
- Canvas::Handle sub_canvas(Canvas::create_inline(op_canvas));
- // don't use clone() because it re-randomizes the seeds of any random valuenodes
- sub_canvas->push_back(composite = composite->simple_clone());
- layer = Layer::create("PasteCanvas");
- composite->set_description(strprintf("Wrapped clone of '%s'", composite->get_non_empty_description().c_str()));
- layer->set_description(strprintf("PasteCanvas wrapper for '%s'", composite->get_non_empty_description().c_str()));
- Layer_PasteCanvas* paste_canvas(static_cast<Layer_PasteCanvas*>(layer.get()));
- paste_canvas->set_blend_method(composite->get_blend_method());
- paste_canvas->set_amount(composite->get_amount());
- sub_canvas->set_time(time); // region and outline don't calculate their bounding rects until their time is set
- composite->set_blend_method(Color::BLEND_STRAIGHT); // do this before calling set_sub_canvas(), but after set_time()
- composite->set_amount(1.0f); // after set_time()
- paste_canvas->set_sub_canvas(sub_canvas);
- }
- }
-
- sort_list.push_back(std::pair<float,Layer::Handle>(z_depth,layer));
- //op_canvas->push_back_simple(layer);
- }
-
- //sort_list.sort();
- stable_sort(sort_list.begin(),sort_list.end());
- std::vector< std::pair<float,Layer::Handle> >::iterator iter2;
- for(iter2=sort_list.begin();iter2!=sort_list.end();++iter2)
- op_canvas->push_back_simple(iter2->second);
- op_canvas->op_flag_=true;
-}
-
-void
-Canvas::get_times_vfunc(Node::time_set &set) const
-{
- const_iterator i = begin(),
- iend = end();
-
- for(; i != iend; ++i)
- {
- const Node::time_set &tset = (*i)->get_times();
- set.insert(tset.begin(),tset.end());
- }
-}
-
-std::set<etl::handle<Layer> >
-Canvas::get_layers_in_group(const String&group)
-{
- if(is_inline() && parent_)
- return parent_->get_layers_in_group(group);
-
- if(group_db_.count(group)==0)
- return std::set<etl::handle<Layer> >();
- return group_db_.find(group)->second;
-}
-
-std::set<String>
-Canvas::get_groups()const
-{
- if(is_inline() && parent_)
- return parent_->get_groups();
-
- std::set<String> ret;
- std::map<String,std::set<etl::handle<Layer> > >::const_iterator iter;
- for(iter=group_db_.begin();iter!=group_db_.end();++iter)
- ret.insert(iter->first);
- return ret;
-}
-
-int
-Canvas::get_group_count()const
-{
- if(is_inline() && parent_)
- return parent_->get_group_count();
-
- return group_db_.size();
-}
-
-void
-Canvas::add_group_pair(String group, etl::handle<Layer> layer)
-{
- group_db_[group].insert(layer);
- if(group_db_[group].size()==1)
- signal_group_added()(group);
- else
- signal_group_changed()(group);
-
- signal_group_pair_added()(group,layer);
-
- if(is_inline() && parent_)
- return parent_->add_group_pair(group,layer);
-}
-
-void
-Canvas::remove_group_pair(String group, etl::handle<Layer> layer)
-{
- group_db_[group].erase(layer);
-
- signal_group_pair_removed()(group,layer);
-
- if(group_db_[group].empty())
- {
- group_db_.erase(group);
- signal_group_removed()(group);
- }
- else
- signal_group_changed()(group);
-
- if(is_inline() && parent_)
- return parent_->remove_group_pair(group,layer);
-}
-
-void
-Canvas::add_connection(etl::loose_handle<Layer> layer, sigc::connection connection)
-{
- connections_[layer].push_back(connection);
-}
-
-void
-Canvas::disconnect_connections(etl::loose_handle<Layer> layer)
-{
- std::vector<sigc::connection>::iterator iter;
- for(iter=connections_[layer].begin();iter!=connections_[layer].end();++iter)
- iter->disconnect();
- connections_[layer].clear();
-}
-
-void
-Canvas::rename_group(const String&old_name,const String&new_name)
-{
- if(is_inline() && parent_)
- return parent_->rename_group(old_name,new_name);
-
- {
- std::map<String,std::set<etl::handle<Layer> > >::iterator iter;
- iter=group_db_.find(old_name);
- if(iter!=group_db_.end())
- for(++iter;iter!=group_db_.end() && iter->first.find(old_name)==0;iter=group_db_.find(old_name),++iter)
- {
- String name(iter->first,old_name.size(),String::npos);
- name=new_name+name;
- rename_group(iter->first,name);
- }
- }
-
- std::set<etl::handle<Layer> > layers(get_layers_in_group(old_name));
- std::set<etl::handle<Layer> >::iterator iter;
-
- for(iter=layers.begin();iter!=layers.end();++iter)
- {
- (*iter)->remove_from_group(old_name);
- (*iter)->add_to_group(new_name);
- }
-}
-
-void
-Canvas::register_external_canvas(String file_name, Handle canvas)
-{
- if(!is_absolute_path(file_name)) file_name = get_file_path()+ETL_DIRECTORY_SEPARATOR+file_name;
- externals_[file_name] = canvas;
-}
-
-#ifdef _DEBUG
-void
-Canvas::show_externals(String file, int line, String text) const
-{
- printf(" .----- (externals for %lx '%s')\n | %s:%d %s\n", ulong(this), get_name().c_str(), file.c_str(), line, text.c_str());
- std::map<String, Handle>::iterator iter;
- for (iter = externals_.begin(); iter != externals_.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
projects / synfig.git / blobdiff