--- /dev/null
+/* === S Y N F I G ========================================================= */
+/*! \file canvasinterface.cpp
+** \brief Template File
+**
+** $Id: canvasinterface.cpp,v 1.1.1.1 2005/01/07 03:34:37 darco Exp $
+**
+** \legal
+** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
+**
+** 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 <iostream>
+
+#include <ETL/clock>
+#include <synfig/valuenode_scale.h>
+#include <synfig/valuenode_timedswap.h>
+#include <synfig/valuenode_composite.h>
+#include <synfig/valuenode_subtract.h>
+#include <synfig/valuenode_linear.h>
+#include <synfig/valuenode_reference.h>
+#include <synfig/valuenode_twotone.h>
+#include <synfig/valuenode_stripes.h>
+
+#include <synfig/waypoint.h>
+#include <synfig/loadcanvas.h>
+#include <synfig/importer.h>
+#include <synfig/guidset.h>
+
+#include "canvasinterface.h"
+#include "instance.h"
+
+#include "actions/layeradd.h"
+#include "actions/valuedescconvert.h"
+#include "actions/valuenodeadd.h"
+#include "actions/editmodeset.h"
+#include "action_system.h"
+
+#include "main.h"
+
+#include <synfig/gradient.h>
+
+#endif
+
+/* === U S I N G =========================================================== */
+
+using namespace std;
+using namespace etl;
+using namespace synfig;
+using namespace synfigapp;
+
+/* === M A C R O S ========================================================= */
+
+/* === G L O B A L S ======================================================= */
+
+/* === P R O C E D U R E S ================================================= */
+
+/* === M E T H O D S ======================================================= */
+
+CanvasInterface::CanvasInterface(loose_handle<Instance> instance,handle<Canvas> canvas):
+ instance_(instance),
+ canvas_(canvas),
+ cur_time_(canvas->rend_desc().get_frame_start()),
+ mode_(MODE_NORMAL|MODE_ANIMATE_PAST|MODE_ANIMATE_FUTURE)
+{
+ set_selection_manager(get_instance()->get_selection_manager());
+ set_ui_interface(get_instance()->get_ui_interface());
+}
+
+CanvasInterface::~CanvasInterface()
+{
+ synfig::info("synfigapp::CanvasInterface::~CanvasInterface(): Deleted");
+}
+
+void
+CanvasInterface::set_time(synfig::Time x)
+{
+ if(get_canvas()->rend_desc().get_frame_rate())
+ {
+ float fps(get_canvas()->rend_desc().get_frame_rate());
+ Time r(x.round(fps));
+ //synfig::info("CanvasInterface::set_time(): %s rounded to %s\n",x.get_string(fps).c_str(),r.get_string(fps).c_str());
+ x=r;
+ }
+ if(cur_time_.is_equal(x))
+ return;
+ cur_time_=x;
+
+ signal_time_changed()();
+ signal_dirty_preview()();
+}
+
+synfig::Time
+CanvasInterface::get_time()const
+{
+ return cur_time_;
+}
+
+void
+CanvasInterface::refresh_current_values()
+{
+ get_canvas()->set_time(cur_time_);
+ signal_time_changed()();
+ signal_dirty_preview()();
+}
+
+etl::handle<CanvasInterface>
+CanvasInterface::create(loose_handle<Instance> instance,handle<Canvas> canvas)
+{
+ etl::handle<CanvasInterface> intrfc;
+ intrfc=new CanvasInterface(instance,canvas);
+ instance->canvas_interface_list().push_front(intrfc);
+ return intrfc;
+}
+
+void
+CanvasInterface::set_mode(Mode x)
+{
+ Action::Handle action(Action::EditModeSet::create());
+
+ assert(action);
+
+ action->set_param("canvas",get_canvas());
+ action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
+ action->set_param("edit_mode",x);
+
+ if(!action->is_ready())
+ {
+ get_ui_interface()->error(_("Action Not Ready, unable to change mode"));
+ assert(0);
+ return;
+ }
+
+ if(!get_instance()->perform_action(action))
+ get_ui_interface()->error(_("Unable to change mode"));
+
+// mode_=x;
+// signal_mode_changed_(x);
+}
+
+CanvasInterface::Mode
+CanvasInterface::get_mode()const
+{
+ return mode_;
+}
+
+
+
+Layer::Handle
+CanvasInterface::add_layer_to(String name, Canvas::Handle canvas, int depth)
+{
+ synfigapp::Action::PassiveGrouper group(get_instance().get(),_("Add Layer To"));
+
+ Layer::Handle layer(Layer::create(name));
+
+ assert(layer);
+
+ if(!layer)
+ return 0;
+
+ if(canvas!=get_canvas() && !canvas->is_inline())
+ {
+ synfig::error("Bad canvas passed to \"add_layer_to\"");
+ return 0;
+ }
+
+ layer->set_canvas(canvas);
+
+ // Apply some defaults
+ if(layer->set_param("fg",synfigapp::Main::get_foreground_color()))
+ layer->set_param("bg",synfigapp::Main::get_background_color());
+ else
+ layer->set_param("color",synfigapp::Main::get_foreground_color());
+
+ layer->set_param("width",synfigapp::Main::get_bline_width().units(get_canvas()->rend_desc()));
+ layer->set_param("gradient",synfigapp::Main::get_gradient());
+ if(name!="zoom")
+ layer->set_param("amount",synfigapp::Main::get_opacity());
+ layer->set_param("blend_method",synfigapp::Main::get_blend_method());
+
+ {
+ // Grab the layer's list pf parameters
+ Layer::ParamList paramlist=layer->get_param_list();
+ Layer::ParamList::iterator iter;
+ for(iter=paramlist.begin();iter!=paramlist.end();++iter)
+ {
+ ValueNode::Handle value_node;
+
+ if(iter->second.get_type()==ValueBase::TYPE_LIST)
+ value_node=LinkableValueNode::create("dynamic_list",iter->second);
+ else if(LinkableValueNode::check_type("composite",iter->second.get_type()) &&
+ (iter->second.get_type()!=ValueBase::TYPE_COLOR && iter->second.get_type()!=ValueBase::TYPE_VECTOR)
+ )
+ value_node=LinkableValueNode::create("composite",iter->second);
+
+ if(value_node)
+ layer->connect_dynamic_param(iter->first,value_node);
+ }
+ }
+
+ // Action to add the layer
+ Action::Handle action(Action::LayerAdd::create());
+
+ assert(action);
+ if(!action)
+ return 0;
+
+ action->set_param("canvas",canvas);
+ action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
+ action->set_param("new",layer);
+
+ if(!action->is_ready())
+ {
+ get_ui_interface()->error(_("Action Not Ready"));
+ return 0;
+ }
+
+ if(!get_instance()->perform_action(action))
+ {
+ get_ui_interface()->error(_("Action Failed."));
+ return 0;
+ }
+
+ synfig::info("DEPTH=%d",depth);
+ // Action to move the layer (if necessary)
+ if(depth>0)
+ {
+ Action::Handle action(Action::create("layer_move"));
+
+ assert(action);
+ if(!action)
+ return 0;
+
+ action->set_param("canvas",canvas);
+ action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
+ action->set_param("layer",layer);
+ action->set_param("new_index",depth);
+
+ if(!action->is_ready())
+ {
+ get_ui_interface()->error(_("Move Action Not Ready"));
+ return 0;
+ }
+
+ if(!get_instance()->perform_action(action))
+ {
+ get_ui_interface()->error(_("Move Action Failed."));
+ return 0;
+ }
+ }
+
+
+ return layer;
+}
+
+
+bool
+CanvasInterface::convert(ValueDesc value_desc, String type)
+{
+ Action::Handle action(Action::ValueDescConvert::create());
+
+ assert(action);
+ if(!action)
+ return 0;
+
+ action->set_param("canvas",get_canvas());
+ action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
+ action->set_param("value_desc",value_desc);
+ action->set_param("type",type);
+
+ if(!action->is_ready())
+ {
+ get_ui_interface()->error(_("Action Not Ready"));
+ return 0;
+ }
+
+ if(get_instance()->perform_action(action))
+ return true;
+
+ get_ui_interface()->error(_("Action Failed."));
+ return false;
+}
+
+bool
+CanvasInterface::add_value_node(synfig::ValueNode::Handle value_node, synfig::String name)
+{
+ if(name.empty())
+ {
+ get_ui_interface()->error(_("Empty name!"));
+ return false;
+ }
+
+ Action::Handle action(Action::ValueNodeAdd::create());
+
+ assert(action);
+ if(!action)
+ return 0;
+
+ action->set_param("canvas",get_canvas());
+ action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
+ action->set_param("new",value_node);
+ action->set_param("name",name);
+
+ if(!action->is_ready())
+ {
+ get_ui_interface()->error(_("Action Not Ready"));
+ return 0;
+ }
+
+ if(get_instance()->perform_action(action))
+ return true;
+
+ get_ui_interface()->error(_("Action Failed."));
+ return false;
+}
+
+Action::ParamList
+CanvasInterface::generate_param_list(const ValueDesc &value_desc)
+{
+ synfigapp::Action::ParamList param_list;
+ param_list.add("time",get_time());
+ param_list.add("canvas_interface",etl::handle<CanvasInterface>(this));
+ param_list.add("canvas",get_canvas());
+
+ param_list.add("value_desc",value_desc);
+
+ if(value_desc.parent_is_value_node())
+ param_list.add("parent_value_node",value_desc.get_parent_value_node());
+
+ if(value_desc.is_value_node())
+ param_list.add("value_node",value_desc.get_value_node());
+
+ if(value_desc.is_const())
+ param_list.add("value",value_desc.get_value());
+
+ if(value_desc.parent_is_layer_param())
+ {
+ param_list.add("parent_layer",value_desc.get_layer());
+ param_list.add("parent_layer_param",value_desc.get_param_name());
+ }
+
+ {
+ synfigapp::SelectionManager::ChildrenList children_list;
+ children_list=get_selection_manager()->get_selected_children();
+ if(!value_desc.parent_is_canvas() && children_list.size()==1)
+ {
+ param_list.add("dest",value_desc);
+ param_list.add("src",children_list.front().get_value_node());
+ }
+ }
+ return param_list;
+}
+
+Action::ParamList
+CanvasInterface::generate_param_list(const std::list<synfigapp::ValueDesc> &value_desc_list)
+{
+ synfigapp::Action::ParamList param_list;
+ param_list.add("time",get_time());
+ param_list.add("canvas_interface",etl::handle<CanvasInterface>(this));
+ param_list.add("canvas",get_canvas());
+
+ std::list<synfigapp::ValueDesc>::const_iterator iter;
+ for(iter=value_desc_list.begin();iter!=value_desc_list.end();++iter)
+ {
+ param_list.add("value_desc",*iter);
+ if(iter->is_value_node())
+ {
+ param_list.add("value_node",iter->get_value_node());
+ }
+ }
+
+
+ return param_list;
+}
+
+void
+CanvasInterface::set_rend_desc(const synfig::RendDesc &rend_desc)
+{
+ Action::Handle action(Action::create("canvas_rend_desc_set"));
+
+ assert(action);
+ if(!action)
+ return;
+
+ action->set_param("canvas",get_canvas());
+ action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
+ action->set_param("rend_desc",rend_desc);
+
+ if(!get_instance()->perform_action(action))
+ get_ui_interface()->error(_("Action Failed."));
+}
+
+bool
+CanvasInterface::set_name(const String &x)
+{
+ //! \todo This needs to be converted into an action
+ get_canvas()->set_name(x);
+ signal_id_changed_();
+ return true;
+}
+
+bool
+CanvasInterface::set_description(const String &x)
+{
+ //! \todo This needs to be converted into an action
+ get_canvas()->set_description(x);
+ return true;
+}
+
+bool
+CanvasInterface::set_id(const String &x)
+{
+ //! \todo This needs to be converted into an action
+ get_canvas()->set_id(x);
+ signal_id_changed_();
+ return true;
+}
+
+
+void
+CanvasInterface::jump_to_next_keyframe()
+{
+ synfig::info("Current time: %s",get_time().get_string().c_str());
+ try
+ {
+ synfig::Keyframe keyframe(*get_canvas()->keyframe_list().find_next(get_time()));
+ synfig::info("Jumping to keyframe \"%s\" at %s",keyframe.get_description().c_str(),keyframe.get_time().get_string().c_str());
+ set_time(keyframe.get_time());
+ }
+ catch(...) { synfig::warning("Unable to find next keyframe"); }
+}
+
+void
+CanvasInterface::jump_to_prev_keyframe()
+{
+ synfig::info("Current time: %s",get_time().get_string().c_str());
+ try
+ {
+ synfig::Keyframe keyframe(*get_canvas()->keyframe_list().find_prev(get_time()));
+ synfig::info("Jumping to keyframe \"%s\" at %s",keyframe.get_description().c_str(),keyframe.get_time().get_string().c_str());
+ set_time(keyframe.get_time());
+ }
+ catch(...) { synfig::warning("Unable to find prev keyframe"); }
+}
+
+bool
+CanvasInterface::import(const synfig::String &filename, bool copy)
+{
+ Action::PassiveGrouper group(get_instance().get(),_("Import Image"));
+
+ synfig::info("Attempting to import "+filename);
+
+
+ if(find(filename.begin(),filename.end(),'.')==filename.end())
+ {
+ get_ui_interface()->error("Filename must have an extension!");
+ return false;
+ }
+
+ String ext(String(filename.begin()+filename.find_last_of('.')+1,filename.end()));
+ std::transform(ext.begin(),ext.end(),ext.begin(),&::tolower);
+
+ // If this is a SIF file, then we need to do things slightly differently
+ if(ext=="sif" || ext=="sifz")try
+ {
+
+ Canvas::Handle outside_canvas(synfig::open_canvas(filename));
+ if(!outside_canvas)
+ throw String(_("Unable to open this composition"));
+
+ Layer::Handle layer(add_layer_to("PasteCanvas",get_canvas()));
+ if(!layer)
+ throw String(_("Unable to create \"PasteCanvas\" layer"));
+ if(!layer->set_param("canvas",ValueBase(outside_canvas)))
+ throw int();
+
+ //layer->set_description(basename(filename));
+ signal_layer_new_description()(layer,filename);
+ return true;
+ }
+ catch(String x)
+ {
+ get_ui_interface()->error(x+" -- "+filename);
+ return false;
+ }
+ catch(...)
+ {
+ get_ui_interface()->error(_("Uncaught exception when attempting\nto open this composition -- ")+filename);
+ return false;
+ }
+
+
+
+ if(!Importer::book().count(ext))
+ {
+ get_ui_interface()->error(_("I don't know how to open images of this type -- ")+ext);
+ return false;
+ }
+
+ try
+ {
+ Layer::Handle layer(add_layer_to("Import",get_canvas()));
+ int w,h;
+ if(!layer)
+ throw int();
+ if(!layer->set_param("filename",ValueBase(filename)))
+ throw int();
+ w=layer->get_param("_width").get(int());
+ h=layer->get_param("_height").get(int());
+ if(w&&h)
+ {
+ Vector size=ValueBase(get_canvas()->rend_desc().get_br()-get_canvas()->rend_desc().get_tl());
+ Vector x;
+ if(size[0]<size[1])
+ {
+ x[0]=size[0];
+ x[1]=size[0]/w*h;
+ if(size[0]<0 ^ size[1]<0)
+ x[1]=-x[1];
+ }
+ else
+ {
+ x[1]=size[1];
+ x[0]=size[1]/h*w;
+ if(size[0]<0 ^ size[1]<0)
+ x[0]=-x[0];
+ }
+ if(!layer->set_param("tl",ValueBase(-x/2)))
+ throw int();
+ if(!layer->set_param("br",ValueBase(x/2)))
+ throw int();
+ }
+ else
+ {
+ if(!layer->set_param("tl",ValueBase(get_canvas()->rend_desc().get_tl())))
+ throw int();
+ if(!layer->set_param("br",ValueBase(get_canvas()->rend_desc().get_br())))
+ throw int();
+ }
+
+ layer->set_description(basename(filename));
+ signal_layer_new_description()(layer,filename);
+
+ return true;
+ }
+ catch(...)
+ {
+ get_ui_interface()->error("Unable to import "+filename);
+ group.cancel();
+ return false;
+ }
+}
+
+
+void
+CanvasInterface::waypoint_duplicate(synfigapp::ValueDesc value_desc,synfig::Waypoint waypoint)
+{
+ Action::Handle action(Action::create("waypoint_set_smart"));
+
+ assert(action);
+ if(!action)
+ return;
+
+ waypoint.make_unique();
+ waypoint.set_time(get_time());
+
+ ValueNode::Handle value_node(value_desc.get_value_node());
+
+ action->set_param("canvas",get_canvas());
+ action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
+ action->set_param("waypoint",waypoint);
+ action->set_param("time",get_time());
+ action->set_param("value_node",value_node);
+
+ if(!get_instance()->perform_action(action))
+ get_ui_interface()->error(_("Action Failed."));
+}
+
+void
+CanvasInterface::waypoint_remove(synfigapp::ValueDesc value_desc,synfig::Waypoint waypoint)
+{
+ Action::Handle action(Action::create("waypoint_remove"));
+
+ assert(action);
+ if(!action)
+ return;
+
+ ValueNode::Handle value_node(value_desc.get_value_node());
+
+ action->set_param("canvas",get_canvas());
+ action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
+ action->set_param("waypoint",waypoint);
+ action->set_param("value_node",value_node);
+
+ if(!get_instance()->perform_action(action))
+ get_ui_interface()->error(_("Action Failed."));
+}
+
+
+void
+CanvasInterface::auto_export(ValueNode::Handle value_node)
+{
+/*
+ // Check to see if we are already exported.
+ if(value_node->is_exported())
+ return;
+
+ Action::Handle action(Action::create("value_node_add"));
+
+ assert(action);
+ if(!action)
+ return;
+
+ String name(strprintf(_("Unnamed%08d"),synfig::UniqueID().get_uid()));
+
+ action->set_param("canvas",get_canvas());
+ action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
+ action->set_param("new",value_node);
+ action->set_param("name",name);
+
+ if(!get_instance()->perform_action(action))
+ get_ui_interface()->error(_("Action Failed."));
+*/
+}
+
+void
+CanvasInterface::auto_export(const ValueDesc& value_desc)
+{
+ // THIS FUNCTION IS DEPRECATED, AND IS NOW A STUB.
+#if 0
+ // Check to see if we are already exported.
+ if(value_desc.is_exported())
+ return;
+
+ Action::Handle action(Action::create("value_desc_export"));
+
+ assert(action);
+ if(!action)
+ return;
+
+ String name(strprintf(_("Unnamed%08d"),synfig::UniqueID().get_uid()));
+
+ action->set_param("canvas",get_canvas());
+ action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
+ action->set_param("value_desc",value_desc);
+ action->set_param("name",name);
+
+ if(!get_instance()->perform_action(action))
+ get_ui_interface()->error(_("Action Failed."));
+#endif
+}
+
+bool
+CanvasInterface::change_value(synfigapp::ValueDesc value_desc,synfig::ValueBase new_value)
+{
+ // If this isn't really a change, then don't bother
+ if(new_value==value_desc.get_value(get_time()))
+ return true;
+
+ // If this change needs to take place elsewhere, then so be it.
+ if(value_desc.get_canvas() && value_desc.get_canvas()->get_root()!=get_canvas()->get_root())do
+ {
+ etl::handle<Instance> instance;
+ instance=find_instance(value_desc.get_canvas()->get_root());
+
+ if(instance)
+ return instance->find_canvas_interface(value_desc.get_canvas())->change_value(value_desc,new_value);
+ else
+ {
+ get_ui_interface()->error(_("The value you are trying to edit is in a composition\nwhich doesn't seem to be open. Open that composition and you\nshould be able to edit this value as normal."));
+ return false;
+ }
+ }while(0);
+#ifdef _DEBUG
+ else
+ { synfig::warning("Can't get canvas from value desc...?"); }
+#endif
+
+ synfigapp::Action::Handle action(synfigapp::Action::create("value_desc_set"));
+ if(!action)
+ {
+ return false;
+ }
+
+ action->set_param("canvas",get_canvas());
+ action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
+ action->set_param("time",get_time());
+ action->set_param("value_desc",value_desc);
+ action->set_param("new_value",new_value);
+
+ return get_instance()->perform_action(action);
+}
+
+void
+CanvasInterface::set_meta_data(const synfig::String& key,const synfig::String& data)
+{
+ get_canvas()->set_meta_data(key,data);
+}
+
+
+// this function goes with find_important_value_descs()
+static int
+_process_value_desc(const synfigapp::ValueDesc& value_desc,std::vector<synfigapp::ValueDesc>& out, synfig::GUIDSet& guid_set)
+{
+ int ret(0);
+
+ if(value_desc.get_value_type()==ValueBase::TYPE_CANVAS)
+ {
+ Canvas::Handle canvas;
+ canvas=value_desc.get_value().get(canvas);
+ if(!canvas || !canvas->is_inline())
+ return ret;
+ ret+=CanvasInterface::find_important_value_descs(canvas,out,guid_set);
+ }
+
+ if(value_desc.is_value_node())
+ {
+ ValueNode::Handle value_node(value_desc.get_value_node());
+
+ if(guid_set.count(value_node->get_guid()))
+ return ret;
+ guid_set.insert(value_node->get_guid());
+
+ if(LinkableValueNode::Handle::cast_dynamic(value_node))
+ {
+ if(ValueNode_DynamicList::Handle::cast_dynamic(value_node))
+ {
+ out.push_back(value_desc);
+ ret++;
+ }
+ // Process the linkable ValueNode's children
+ LinkableValueNode::Handle value_node(LinkableValueNode::Handle::cast_dynamic(value_node));
+ int i;
+ for(i=0;i<value_node->link_count();i++)
+ {
+ ValueNode::Handle link(value_node->get_link(i));
+ if(!link->is_exported())
+ ret+=_process_value_desc(ValueDesc(value_node,i),out,guid_set);
+ }
+ }
+ else if(ValueNode_Animated::Handle::cast_dynamic(value_node))
+ {
+ out.push_back(value_desc);
+ ret++;
+ }
+ }
+
+ return ret;
+}
+
+int
+CanvasInterface::find_important_value_descs(synfig::Canvas::Handle canvas,std::vector<synfigapp::ValueDesc>& out,synfig::GUIDSet& guid_set)
+{
+ int ret(0);
+ if(!canvas->is_inline())
+ {
+ ValueNodeList::const_iterator iter;
+
+ for(
+ iter=canvas->value_node_list().begin();
+ iter!=canvas->value_node_list().end();
+ ++iter)
+ ret+=_process_value_desc(ValueDesc(canvas,(*iter)->get_id()),out,guid_set);
+ }
+
+ Canvas::const_iterator iter;
+
+ for(iter=canvas->begin();iter!=canvas->end();++iter)
+ {
+ Layer::Handle layer(*iter);
+
+ Layer::DynamicParamList::const_iterator iter;
+ for(
+ iter=layer->dynamic_param_list().begin();
+ iter!=layer->dynamic_param_list().end();
+ ++iter)
+ {
+ if(!iter->second->is_exported())
+ ret+=_process_value_desc(ValueDesc(layer,iter->first),out,guid_set);
+ }
+ ValueBase value(layer->get_param("canvas"));
+ if(value.is_valid())
+ ret+=_process_value_desc(ValueDesc(layer,"canvas"),out,guid_set);
+ }
+
+ return ret;
+}
+
+int
+CanvasInterface::find_important_value_descs(std::vector<synfigapp::ValueDesc>& out)
+{
+ synfig::GUIDSet tmp;
+ return find_important_value_descs(get_canvas(),out,tmp);
+}
+
+void
+CanvasInterface::seek_frame(int frames)
+{
+ if(!frames)
+ return;
+ float fps(get_canvas()->rend_desc().get_frame_rate());
+ Time newtime(get_time()+(float)frames/fps);
+ newtime=newtime.round(fps);
+
+ if(newtime<=get_canvas()->rend_desc().get_frame_start())
+ newtime=get_canvas()->rend_desc().get_frame_start();
+ if(newtime>=get_canvas()->rend_desc().get_frame_end())
+ newtime=get_canvas()->rend_desc().get_frame_end();
+ set_time(newtime);
+}
+
+void
+CanvasInterface::seek_time(synfig::Time time)
+{
+ if(!time)
+ return;
+
+ float fps(get_canvas()->rend_desc().get_frame_rate());
+
+ if(time>=synfig::Time::end())
+ {
+ set_time(get_canvas()->rend_desc().get_time_end());
+ return;
+ }
+ if(time<=synfig::Time::begin())
+ {
+ set_time(get_canvas()->rend_desc().get_time_end());
+ return;
+ }
+
+ Time newtime(get_time()+time);
+ newtime=newtime.round(fps);
+
+ if(newtime<=get_canvas()->rend_desc().get_time_start())
+ newtime=get_canvas()->rend_desc().get_time_start();
+ if(newtime>=get_canvas()->rend_desc().get_time_end())
+ newtime=get_canvas()->rend_desc().get_time_end();
+ set_time(newtime);
+}
projects / synfig.git / blobdiff