/* === S Y N F I G ========================================================= */
/*! \file target.cpp
** \brief Target Class Implementation
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
** Copyright (c) 2010 Diego Barrios Romero
**
** 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 HAVE_CONFIG_H
# include <config.h>
#endif
#include "target.h"
#include "string.h"
#include "canvas.h"
#include "target_null.h"
#include "target_null_tile.h"
#include "targetparam.h"
using namespace synfig;
using namespace etl;
using namespace std;
synfig::Target::Book* synfig::Target::book_;
synfig::Target::ExtBook* synfig::Target::ext_book_;
/* === P R O C E D U R E S ================================================= */
bool
Target::subsys_init()
{
book_=new synfig::Target::Book();
ext_book_=new synfig::Target::ExtBook();
// At least one target must be available.
book()["null"].factory =
reinterpret_cast<synfig::Target::Factory>(&Target_Null::create);
book()["null"].filename = "null";
book()["null"].target_param = TargetParam();
ext_book()["null"]="null";
book()["null-tile"].factory =
reinterpret_cast<synfig::Target::Factory>(&Target_Null_Tile::create);
book()["null-tile"].filename = "null-tile";
book()["null-tile"].target_param = TargetParam();
ext_book()["null-tile"]="null-tile";
return true;
}
bool
Target::subsys_stop()
{
delete book_;
delete ext_book_;
return true;
}
Target::Book&
Target::book()
{
return *book_;
}
Target::ExtBook&
Target::ext_book()
{
return *ext_book_;
}
/* === M E T H O D S ======================================================= */
Target::Target():
quality_(4),
alpha_mode(TARGET_ALPHA_MODE_KEEP),
avoid_time_sync_(false),
curr_frame_(0)
{
}
void
synfig::Target::set_canvas(etl::handle<Canvas> c)
{
canvas=c;
RendDesc desc=canvas->rend_desc();
set_rend_desc(&desc);
}
Target::Handle
Target::create(const String &name, const String &filename,
synfig::TargetParam params)
{
if(!book().count(name))
return handle<Target>();
return Target::Handle(book()[name].factory(filename.c_str(), params));
}
int
Target::next_frame(Time& time)
{
int
total_frames(1),
frame_start(0),
frame_end(0);
Time
time_start(0),
time_end(0);
frame_start=desc.get_frame_start();
frame_end=desc.get_frame_end();
time_start=desc.get_time_start();
time_end=desc.get_time_end();
// TODO: Add option to exclude last frame
// If user wants to recover the last buggy behavior then
// expose this option to the interface using the target params.
// At the moment it is set to false.
bool exclude_last_frame(false);
// Calculate the number of frames
total_frames=frame_end-frame_start+(exclude_last_frame?0:1);
if(total_frames<=0)total_frames=1;
if(total_frames == 1)
{
time=time_start;
}
else
{
time=(time_end-time_start)*curr_frame_/(total_frames-(exclude_last_frame?0:1))+time_start;
}
// synfig::info("before curr_frame_: %d",curr_frame_);
curr_frame_++;
// synfig::info("before curr_frame_: %d",curr_frame_);
// synfig::info("total_frames: %d",total_frames);
// synfig::info("time_end: %s",time_end.get_string().c_str());
// synfig::info("time_start: %s",time_start.get_string().c_str());
// synfig::info("time: %s",time.get_string().c_str());
// synfig::info("remaining frames %d", total_frames-curr_frame_);
return total_frames- curr_frame_;
}