1 /* === S Y N F I G ========================================================= */
2 /*! \file canvasinterface.cpp
3 ** \brief Template File
8 ** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
9 ** Copyright (c) 2007, 2008 Chris Moore
11 ** This package is free software; you can redistribute it and/or
12 ** modify it under the terms of the GNU General Public License as
13 ** published by the Free Software Foundation; either version 2 of
14 ** the License, or (at your option) any later version.
16 ** This package is distributed in the hope that it will be useful,
17 ** but WITHOUT ANY WARRANTY; without even the implied warranty of
18 ** MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
19 ** General Public License for more details.
22 /* ========================================================================= */
24 /* === H E A D E R S ======================================================= */
36 #include <synfig/valuenode_scale.h>
37 #include <synfig/valuenode_timedswap.h>
38 #include <synfig/valuenode_composite.h>
39 #include <synfig/valuenode_subtract.h>
40 #include <synfig/valuenode_linear.h>
41 #include <synfig/valuenode_reference.h>
42 #include <synfig/valuenode_twotone.h>
43 #include <synfig/valuenode_stripes.h>
44 #include <synfig/valuenode_bline.h>
46 #include <synfig/waypoint.h>
47 #include <synfig/loadcanvas.h>
48 #include <synfig/importer.h>
49 #include <synfig/guidset.h>
51 #include "canvasinterface.h"
54 #include "actions/layeradd.h"
55 #include "actions/valuedescconvert.h"
56 #include "actions/valuenodeadd.h"
57 #include "actions/editmodeset.h"
58 #include "action_system.h"
62 #include <synfig/gradient.h>
68 /* === U S I N G =========================================================== */
72 using namespace synfig;
73 using namespace synfigapp;
75 /* === M A C R O S ========================================================= */
77 /* === G L O B A L S ======================================================= */
79 /* === P R O C E D U R E S ================================================= */
81 /* === M E T H O D S ======================================================= */
83 CanvasInterface::CanvasInterface(etl::loose_handle<Instance> instance,etl::handle<synfig::Canvas> canvas):
86 cur_time_(canvas->rend_desc().get_frame_start()),
87 mode_(MODE_NORMAL|MODE_ANIMATE_PAST|MODE_ANIMATE_FUTURE)
89 set_selection_manager(get_instance()->get_selection_manager());
90 set_ui_interface(get_instance()->get_ui_interface());
93 CanvasInterface::~CanvasInterface()
95 if (getenv("SYNFIG_DEBUG_DESTRUCTORS"))
96 synfig::info("CanvasInterface::~CanvasInterface(): Deleted");
100 CanvasInterface::set_time(synfig::Time x)
102 if(get_canvas()->rend_desc().get_frame_rate())
104 float fps(get_canvas()->rend_desc().get_frame_rate());
105 Time r(x.round(fps));
106 //synfig::info("CanvasInterface::set_time(): %s rounded to %s\n",x.get_string(fps).c_str(),r.get_string(fps).c_str());
109 if(cur_time_.is_equal(x))
111 get_canvas()->set_time(cur_time_=x);
113 // update the time in all the child canvases
114 Canvas::Children children = get_canvas()->get_root()->children();
115 handle<CanvasInterface> interface;
116 for (Canvas::Children::iterator iter = children.begin(); iter != children.end(); iter++)
117 if ((interface = get_instance()->find_canvas_interface(*iter)) != this)
118 interface->set_time(interface->get_canvas()->get_time());
120 signal_time_changed()();
121 signal_dirty_preview()();
125 CanvasInterface::get_time()const
131 CanvasInterface::refresh_current_values()
133 get_canvas()->set_time(cur_time_);
134 signal_time_changed()();
135 signal_dirty_preview()();
138 etl::handle<CanvasInterface>
139 CanvasInterface::create(etl::loose_handle<Instance> instance, etl::handle<synfig::Canvas> canvas)
141 etl::handle<CanvasInterface> intrfc;
142 intrfc=new CanvasInterface(instance,canvas);
143 instance->canvas_interface_list().push_front(intrfc);
148 CanvasInterface::set_mode(Mode x)
150 Action::Handle action(Action::EditModeSet::create());
154 action->set_param("canvas",get_canvas());
155 action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
156 action->set_param("edit_mode",x);
158 if(!action->is_ready())
160 get_ui_interface()->error(_("Action Not Ready, unable to change mode"));
165 if(!get_instance()->perform_action(action))
166 get_ui_interface()->error(_("Unable to change mode"));
169 // signal_mode_changed_(x);
172 CanvasInterface::Mode
173 CanvasInterface::get_mode()const
181 CanvasInterface::add_layer_to(synfig::String name, synfig::Canvas::Handle canvas, int depth)
183 synfigapp::Action::PassiveGrouper group(get_instance().get(),_("Add Layer To"));
185 Layer::Handle layer(Layer::create(name));
192 if(canvas!=get_canvas() && !canvas->is_inline())
194 synfig::error("Bad canvas passed to \"add_layer_to\"");
198 // automatically export the Index parameter of new Duplicate layers
199 if (name == "duplicate")
200 for (int i = 1; ; i++)
202 String name = strprintf(_("Index %d"), i);
205 canvas->find_value_node(name);
207 catch (Exception::IDNotFound x)
209 add_value_node(layer->dynamic_param_list().find("index")->second, name);
214 layer->set_canvas(canvas);
216 // Apply some defaults
217 if(layer->set_param("fg",synfigapp::Main::get_outline_color()))
218 layer->set_param("bg",synfigapp::Main::get_fill_color());
219 else if (name == "outline")
220 layer->set_param("color",synfigapp::Main::get_outline_color());
222 layer->set_param("color",synfigapp::Main::get_fill_color());
224 layer->set_param("width",synfigapp::Main::get_bline_width().units(get_canvas()->rend_desc()));
225 layer->set_param("gradient",synfigapp::Main::get_gradient());
227 layer->set_param("amount",synfigapp::Main::get_opacity());
228 layer->set_param("blend_method",synfigapp::Main::get_blend_method());
231 // Grab the layer's list of parameters
232 Layer::ParamList paramlist=layer->get_param_list();
233 Layer::ParamList::iterator iter;
235 // loop through the static parameters
236 for(iter=paramlist.begin();iter!=paramlist.end();++iter)
238 ValueNode::Handle value_node;
240 // if we find any which are list values then make them
241 // into dynamic list valuenodes, unless every element of
242 // the list is a blinepoint, in which case convert it to a
244 if(iter->second.get_type()==ValueBase::TYPE_LIST)
246 // check whether it's a list of blinepoints only
247 vector<ValueBase> list(iter->second.get_list());
250 vector<ValueBase>::iterator iter2;
251 for (iter2 = list.begin(); iter2 != list.end(); iter2++)
252 if (iter2->get_type() != ValueBase::TYPE_BLINEPOINT)
254 if (iter2 == list.end())
256 value_node=LinkableValueNode::create("bline",iter->second);
257 ValueNode_BLine::Handle::cast_dynamic(value_node)->set_member_canvas(canvas);
262 value_node=LinkableValueNode::create("dynamic_list",iter->second);
264 // otherwise, if it's a type that can be converted to
265 // 'composite' (other than the types that can be radial
266 // composite) then do so
267 else if(LinkableValueNode::check_type("composite",iter->second.get_type()) &&
268 (iter->second.get_type()!=ValueBase::TYPE_COLOR &&
269 iter->second.get_type()!=ValueBase::TYPE_VECTOR))
270 value_node=LinkableValueNode::create("composite",iter->second);
273 layer->connect_dynamic_param(iter->first,value_node);
277 // Action to add the layer
278 Action::Handle action(Action::LayerAdd::create());
284 action->set_param("canvas",canvas);
285 action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
286 action->set_param("new",layer);
288 if(!action->is_ready())
290 get_ui_interface()->error(_("Action Not Ready"));
294 if(!get_instance()->perform_action(action))
296 get_ui_interface()->error(_("Action Failed."));
300 // synfig::info("DEPTH=%d",depth);
302 // Action to move the layer (if necessary)
305 Action::Handle action(Action::create("LayerMove"));
311 action->set_param("canvas",canvas);
312 action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
313 action->set_param("layer",layer);
314 action->set_param("new_index",depth);
316 if(!action->is_ready())
318 get_ui_interface()->error(_("Move Action Not Ready"));
322 if(!get_instance()->perform_action(action))
324 get_ui_interface()->error(_("Move Action Failed."));
335 CanvasInterface::convert(ValueDesc value_desc, synfig::String type)
337 Action::Handle action(Action::ValueDescConvert::create());
343 action->set_param("canvas",get_canvas());
344 action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
345 action->set_param("value_desc",value_desc);
346 action->set_param("type",type);
347 action->set_param("time",get_time());
349 if(!action->is_ready())
351 get_ui_interface()->error(_("Action Not Ready"));
355 if(get_instance()->perform_action(action))
358 get_ui_interface()->error(_("Action Failed."));
363 CanvasInterface::add_value_node(synfig::ValueNode::Handle value_node, synfig::String name)
367 get_ui_interface()->error(_("Empty name!"));
371 Action::Handle action(Action::ValueNodeAdd::create());
377 action->set_param("canvas",get_canvas());
378 action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
379 action->set_param("new",value_node);
380 action->set_param("name",name);
382 if(!action->is_ready())
384 get_ui_interface()->error(_("Action Not Ready"));
388 if(get_instance()->perform_action(action))
391 get_ui_interface()->error(_("Action Failed."));
396 CanvasInterface::generate_param_list(const ValueDesc &value_desc)
398 synfigapp::Action::ParamList param_list;
399 param_list.add("time",get_time());
400 param_list.add("canvas_interface",etl::handle<CanvasInterface>(this));
401 param_list.add("canvas",get_canvas());
403 param_list.add("value_desc",value_desc);
405 if(value_desc.parent_is_value_node())
406 param_list.add("parent_value_node",value_desc.get_parent_value_node());
408 if(value_desc.is_value_node())
409 param_list.add("value_node",value_desc.get_value_node());
411 if(value_desc.is_const())
413 // Fix 1868911: if we put a ValueBase holding a Canvas handle
414 // into the param_list and then export the canvas, the handle
415 // will miss out of having its reference count reduced,
416 // because by the time the handle is destructed the canvas
417 // will no longer be inline. So let's not propogate that
418 // ValueBase any further than here.
419 if (value_desc.get_value_type() == ValueBase::TYPE_CANVAS)
420 param_list.add("value",Canvas::LooseHandle(value_desc.get_value().get(Canvas::LooseHandle())));
422 param_list.add("value",value_desc.get_value());
425 if(value_desc.parent_is_layer_param())
427 param_list.add("parent_layer",value_desc.get_layer());
428 param_list.add("parent_layer_param",value_desc.get_param_name());
432 synfigapp::SelectionManager::ChildrenList children_list;
433 children_list=get_selection_manager()->get_selected_children();
434 if(!value_desc.parent_is_canvas() && children_list.size()==1)
436 param_list.add("dest",value_desc);
437 param_list.add("src",children_list.front().get_value_node());
444 CanvasInterface::generate_param_list(const std::list<synfigapp::ValueDesc> &value_desc_list)
446 synfigapp::Action::ParamList param_list;
447 param_list.add("time",get_time());
448 param_list.add("canvas_interface",etl::handle<CanvasInterface>(this));
449 param_list.add("canvas",get_canvas());
451 std::list<synfigapp::ValueDesc>::const_iterator iter;
452 for(iter=value_desc_list.begin();iter!=value_desc_list.end();++iter)
454 param_list.add("value_desc",*iter);
455 if(iter->is_value_node())
457 param_list.add("value_node",iter->get_value_node());
466 CanvasInterface::set_rend_desc(const synfig::RendDesc &rend_desc)
468 Action::Handle action(Action::create("CanvasRendDescSet"));
474 action->set_param("canvas",get_canvas());
475 action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
476 action->set_param("rend_desc",rend_desc);
478 if(!get_instance()->perform_action(action))
479 get_ui_interface()->error(_("Action Failed."));
483 CanvasInterface::set_name(const synfig::String &x)
485 Action::Handle action(Action::create("CanvasNameSet"));
491 action->set_param("canvas",get_canvas());
492 action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
493 action->set_param("name",x);
495 if(!get_instance()->perform_action(action))
496 get_ui_interface()->error(_("Action Failed."));
498 signal_id_changed_();
502 CanvasInterface::set_description(const synfig::String &x)
504 Action::Handle action(Action::create("CanvasDescriptionSet"));
510 action->set_param("canvas",get_canvas());
511 action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
512 action->set_param("description",x);
514 if(!get_instance()->perform_action(action))
515 get_ui_interface()->error(_("Action Failed."));
519 CanvasInterface::set_id(const synfig::String &x)
521 Action::Handle action(Action::create("CanvasIdSet"));
527 action->set_param("canvas",get_canvas());
528 action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
529 action->set_param("id",x);
531 if(!get_instance()->perform_action(action))
532 get_ui_interface()->error(_("Action Failed."));
534 signal_id_changed_();
539 CanvasInterface::jump_to_next_keyframe()
541 synfig::info("Current time: %s",get_time().get_string().c_str());
544 synfig::Keyframe keyframe(*get_canvas()->keyframe_list().find_next(get_time()));
545 synfig::info("Jumping to keyframe \"%s\" at %s",keyframe.get_description().c_str(),keyframe.get_time().get_string().c_str());
546 set_time(keyframe.get_time());
548 catch(...) { synfig::warning("Unable to find next keyframe"); }
552 CanvasInterface::jump_to_prev_keyframe()
554 synfig::info("Current time: %s",get_time().get_string().c_str());
557 synfig::Keyframe keyframe(*get_canvas()->keyframe_list().find_prev(get_time()));
558 synfig::info("Jumping to keyframe \"%s\" at %s",keyframe.get_description().c_str(),keyframe.get_time().get_string().c_str());
559 set_time(keyframe.get_time());
561 catch(...) { synfig::warning("Unable to find prev keyframe"); }
565 CanvasInterface::import(const synfig::String &filename, synfig::String &errors, synfig::String &warnings, bool resize_image)
567 Action::PassiveGrouper group(get_instance().get(),_("Import Image"));
569 synfig::info("Attempting to import "+filename);
571 if (filename_extension(filename) == "")
573 get_ui_interface()->error(_("Filename must have an extension!"));
577 String ext(filename_extension(filename));
578 if (ext.size()) ext = ext.substr(1); // skip initial '.'
579 std::transform(ext.begin(),ext.end(),ext.begin(),&::tolower);
581 // If this is a SIF file, then we need to do things slightly differently
582 if(ext=="sif" || ext=="sifz")try
584 Canvas::Handle outside_canvas(synfig::open_canvas(filename, errors, warnings));
586 throw String(_("Unable to open this composition")) + ":\n\n" + errors;
588 Layer::Handle layer(add_layer_to("PasteCanvas",get_canvas()));
590 throw String(_("Unable to create \"Paste Canvas\" layer"));
591 if(!layer->set_param("canvas",ValueBase(outside_canvas)))
593 get_canvas()->register_external_canvas(filename, outside_canvas);
595 //layer->set_description(basename(filename));
596 signal_layer_new_description()(layer,filename);
601 get_ui_interface()->error(filename + ": " + x);
606 get_ui_interface()->error(_("Uncaught exception when attempting\nto open this composition -- ")+filename);
610 if(!Importer::book().count(ext))
612 get_ui_interface()->error(_("I don't know how to open images of this type -- ")+ext);
618 Layer::Handle layer(add_layer_to("Import",get_canvas()));
622 if(!layer->set_param("filename",ValueBase(filename)))
624 w=layer->get_param("_width").get(int());
625 h=layer->get_param("_height").get(int());
628 Vector x, size=ValueBase(get_canvas()->rend_desc().get_br()-get_canvas()->rend_desc().get_tl());
630 // vector from top left of canvas to bottom right
633 if(abs(size[0])<abs(size[1])) // if canvas is tall and thin
635 x[0]=size[0]; // use full width
636 x[1]=size[0]/w*h; // and scale for height
637 if((size[0]<0) ^ (size[1]<0))
640 else // else canvas is short and fat (or maybe square)
642 x[1]=size[1]; // use full height
643 x[0]=size[1]/h*w; // and scale for width
644 if((size[0]<0) ^ (size[1]<0))
652 if((size[0]<0)) x[0]=-x[0];
653 if((size[1]<0)) x[1]=-x[1];
656 if(!layer->set_param("tl",ValueBase(-x/2)))
658 if(!layer->set_param("br",ValueBase(x/2)))
663 if(!layer->set_param("tl",ValueBase(get_canvas()->rend_desc().get_tl())))
665 if(!layer->set_param("br",ValueBase(get_canvas()->rend_desc().get_br())))
669 layer->set_description(basename(filename));
670 signal_layer_new_description()(layer,filename);
676 get_ui_interface()->error("Unable to import "+filename);
684 CanvasInterface::waypoint_duplicate(synfigapp::ValueDesc value_desc,synfig::Waypoint waypoint)
686 ValueNode::Handle value_node();
687 waypoint_duplicate(value_desc.get_value_node(), waypoint);
691 CanvasInterface::waypoint_duplicate(ValueNode::Handle value_node,synfig::Waypoint waypoint)
693 Action::Handle action(Action::create("WaypointSetSmart"));
699 waypoint.make_unique();
700 waypoint.set_time(get_time());
702 action->set_param("canvas",get_canvas());
703 action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
704 action->set_param("waypoint",waypoint);
705 action->set_param("time",get_time());
706 action->set_param("value_node",value_node);
708 if(!get_instance()->perform_action(action))
709 get_ui_interface()->error(_("Action Failed."));
713 CanvasInterface::waypoint_remove(synfigapp::ValueDesc value_desc,synfig::Waypoint waypoint)
715 ValueNode::Handle value_node();
716 waypoint_remove(value_desc.get_value_node(), waypoint);
720 CanvasInterface::waypoint_remove(ValueNode::Handle value_node,synfig::Waypoint waypoint)
722 Action::Handle action(Action::create("WaypointRemove"));
728 action->set_param("canvas",get_canvas());
729 action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
730 action->set_param("waypoint",waypoint);
731 action->set_param("value_node",value_node);
733 if(!get_instance()->perform_action(action))
734 get_ui_interface()->error(_("Action Failed."));
739 CanvasInterface::auto_export(synfig::ValueNode::Handle /*value_node*/)
742 // Check to see if we are already exported.
743 if(value_node->is_exported())
746 Action::Handle action(Action::create("ValueNodeAdd"));
752 String name(strprintf(_("Unnamed%08d"),synfig::UniqueID().get_uid()));
754 action->set_param("canvas",get_canvas());
755 action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
756 action->set_param("new",value_node);
757 action->set_param("name",name);
759 if(!get_instance()->perform_action(action))
760 get_ui_interface()->error(_("Action Failed."));
765 CanvasInterface::auto_export(const ValueDesc& /*value_desc*/)
767 // THIS FUNCTION IS DEPRECATED, AND IS NOW A STUB.
769 // Check to see if we are already exported.
770 if(value_desc.is_exported())
773 Action::Handle action(Action::create("ValueDescExport"));
779 String name(strprintf(_("Unnamed%08d"),synfig::UniqueID().get_uid()));
781 action->set_param("canvas",get_canvas());
782 action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
783 action->set_param("value_desc",value_desc);
784 action->set_param("name",name);
786 if(!get_instance()->perform_action(action))
787 get_ui_interface()->error(_("Action Failed."));
792 CanvasInterface::change_value(synfigapp::ValueDesc value_desc,synfig::ValueBase new_value)
794 // If this isn't really a change, then don't bother
795 if(new_value==value_desc.get_value(get_time()))
798 // If this change needs to take place elsewhere, then so be it.
799 if(value_desc.get_canvas())
801 if (value_desc.get_canvas()->get_root() != get_canvas()->get_root())
803 etl::handle<Instance> instance;
804 instance=find_instance(value_desc.get_canvas()->get_root());
807 return instance->find_canvas_interface(value_desc.get_canvas())->change_value(value_desc,new_value);
810 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."));
817 { synfig::warning("Can't get canvas from value desc...?"); }
820 synfigapp::Action::Handle action(synfigapp::Action::create("ValueDescSet"));
826 action->set_param("canvas",get_canvas());
827 action->set_param("canvas_interface",etl::loose_handle<CanvasInterface>(this));
828 action->set_param("time",get_time());
829 action->set_param("value_desc",value_desc);
830 action->set_param("new_value",new_value);
832 return get_instance()->perform_action(action);
836 CanvasInterface::set_meta_data(const synfig::String& key,const synfig::String& data)
838 get_canvas()->set_meta_data(key,data);
842 // this function goes with find_important_value_descs()
844 _process_value_desc(const synfigapp::ValueDesc& value_desc,std::vector<synfigapp::ValueDesc>& out, synfig::GUIDSet& guid_set)
848 if(value_desc.get_value_type()==ValueBase::TYPE_CANVAS)
850 Canvas::Handle canvas;
851 canvas=value_desc.get_value().get(canvas);
852 if(!canvas || !canvas->is_inline())
854 ret+=CanvasInterface::find_important_value_descs(canvas,out,guid_set);
857 if(value_desc.is_value_node())
859 ValueNode::Handle value_node(value_desc.get_value_node());
861 if(guid_set.count(value_node->get_guid()))
863 guid_set.insert(value_node->get_guid());
865 if(LinkableValueNode::Handle::cast_dynamic(value_node))
867 if(ValueNode_DynamicList::Handle::cast_dynamic(value_node))
869 out.push_back(value_desc);
872 // Process the linkable ValueNode's children
873 LinkableValueNode::Handle value_node_copy(LinkableValueNode::Handle::cast_dynamic(value_node));
875 for(i=0;i<value_node_copy->link_count();i++)
877 ValueNode::Handle link(value_node_copy->get_link(i));
878 if(!link->is_exported())
879 ret+=_process_value_desc(ValueDesc(value_node_copy,i),out,guid_set);
882 else if(ValueNode_Animated::Handle::cast_dynamic(value_node))
884 out.push_back(value_desc);
893 CanvasInterface::find_important_value_descs(synfig::Canvas::Handle canvas,std::vector<synfigapp::ValueDesc>& out,synfig::GUIDSet& guid_set)
896 if(!canvas->is_inline())
898 ValueNodeList::const_iterator iter;
901 iter=canvas->value_node_list().begin();
902 iter!=canvas->value_node_list().end();
904 ret+=_process_value_desc(ValueDesc(canvas,(*iter)->get_id()),out,guid_set);
907 Canvas::const_iterator iter;
909 for(iter=canvas->begin();iter!=canvas->end();++iter)
911 Layer::Handle layer(*iter);
913 Layer::DynamicParamList::const_iterator iter;
915 iter=layer->dynamic_param_list().begin();
916 iter!=layer->dynamic_param_list().end();
919 if(!iter->second->is_exported())
920 ret+=_process_value_desc(ValueDesc(layer,iter->first),out,guid_set);
922 ValueBase value(layer->get_param("canvas"));
924 ret+=_process_value_desc(ValueDesc(layer,"canvas"),out,guid_set);
931 CanvasInterface::find_important_value_descs(std::vector<synfigapp::ValueDesc>& out)
934 return find_important_value_descs(get_canvas(),out,tmp);
938 CanvasInterface::seek_frame(int frames)
942 float fps(get_canvas()->rend_desc().get_frame_rate());
943 Time newtime(get_time()+(float)frames/fps);
944 newtime=newtime.round(fps);
946 if(newtime<=get_canvas()->rend_desc().get_time_start())
947 newtime=get_canvas()->rend_desc().get_time_start();
948 if(newtime>=get_canvas()->rend_desc().get_time_end())
949 newtime=get_canvas()->rend_desc().get_time_end();
954 CanvasInterface::seek_time(synfig::Time time)
959 float fps(get_canvas()->rend_desc().get_frame_rate());
961 if(time>=synfig::Time::end())
963 set_time(get_canvas()->rend_desc().get_time_end());
966 if(time<=synfig::Time::begin())
968 set_time(get_canvas()->rend_desc().get_time_start());
972 Time newtime(get_time()+time);
973 newtime=newtime.round(fps);
975 if(newtime<=get_canvas()->rend_desc().get_time_start())
976 newtime=get_canvas()->rend_desc().get_time_start();
977 if(newtime>=get_canvas()->rend_desc().get_time_end())
978 newtime=get_canvas()->rend_desc().get_time_end();