/* === S Y N F I G ========================================================= */
/*! \file widget_curves.cpp
** \brief Template File
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
** Copyright (c) 2008 Gerco Ballintijn
** Copyright (c) 2011 Carlos López
**
** 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 "widgets/widget_curves.h"
#include <cmath>
#include "app.h"
#include <gtkmm/drawingarea.h>
#include <map>
#include <vector>
#include <ETL/misc>
#include <sigc++/object.h>
#include "general.h"
#endif
/* === U S I N G =========================================================== */
using namespace std;
using namespace etl;
using namespace synfig;
using namespace studio;
/* === M A C R O S ========================================================= */
#define MAX_CHANNELS 15
/* === G L O B A L S ======================================================= */
/* === P R O C E D U R E S ================================================= */
/* === C L A S S E S ======================================================= */
struct studio::Widget_Curves::Channel
{
synfig::String name;
Gdk::Color color;
std::map<synfig::Real,synfig::Real> values;
};
struct studio::Widget_Curves::CurveStruct : sigc::trackable
{
synfigapp::ValueDesc value_desc;
std::vector<Channel> channels;
CurveStruct(const synfigapp::ValueDesc& x):
value_desc(x)
{
Type &type(value_desc.get_value_type());
if (type == type_real)
{
channels.push_back(Channel());
channels.back().name="real";
channels.back().color=Gdk::Color("#007f7f");
}
else
if (type == type_time)
{
channels.push_back(Channel());
channels.back().name="time";
channels.back().color=Gdk::Color("#7f7f00");
}
else
if (type == type_integer)
{
channels.push_back(Channel());
channels.back().name="int";
channels.back().color=Gdk::Color("#7f0000");
}
else
if (type == type_bool)
{
channels.push_back(Channel());
channels.back().name="bool";
channels.back().color=Gdk::Color("#ff7f00");
}
else
if (type == type_angle)
{
channels.push_back(Channel());
channels.back().name="theta";
channels.back().color=Gdk::Color("#004f4f");
}
else
if (type == type_color)
{
channels.push_back(Channel());
channels.back().name="red";
channels.back().color=Gdk::Color("#7f0000");
channels.push_back(Channel());
channels.back().name="green";
channels.back().color=Gdk::Color("#007f00");
channels.push_back(Channel());
channels.back().name="blue";
channels.back().color=Gdk::Color("#00007f");
channels.push_back(Channel());
channels.back().name="alpha";
channels.back().color=Gdk::Color("#000000");
}
else
if (type == type_vector)
{
channels.push_back(Channel());
channels.back().name="x";
channels.back().color=Gdk::Color("#7f007f");
channels.push_back(Channel());
channels.back().name="y";
channels.back().color=Gdk::Color("#007f7f");
}
else
if (type == type_bline_point)
{
channels.push_back(Channel());
channels.back().name="v.x";
channels.back().color=Gdk::Color("#ff7f00");
channels.push_back(Channel());
channels.back().name="v.y";
channels.back().color=Gdk::Color("#7f3f00");
channels.push_back(Channel());
channels.back().name="width";
channels.back().color=Gdk::Color("#000000");
channels.push_back(Channel());
channels.back().name="origin";
channels.back().color=Gdk::Color("#ffffff");
channels.push_back(Channel());
channels.back().name="tsplit";
channels.back().color=Gdk::Color("#ff00ff");
channels.push_back(Channel());
channels.back().name="t1.x";
channels.back().color=Gdk::Color("#ff0000");
channels.push_back(Channel());
channels.back().name="t1.y";
channels.back().color=Gdk::Color("#7f0000");
channels.push_back(Channel());
channels.back().name="t2.x";
channels.back().color=Gdk::Color("#ffff00");
channels.push_back(Channel());
channels.back().name="t2.y";
channels.back().color=Gdk::Color("#7f7f00");
channels.push_back(Channel());
channels.back().name="rsplit";
channels.back().color=Gdk::Color("#ff00ff");
channels.push_back(Channel());
channels.back().name="asplit";
channels.back().color=Gdk::Color("#ff00ff");
}
else
if (type == type_width_point)
{
channels.push_back(Channel());
channels.back().name="position";
channels.back().color=Gdk::Color("#ff0000");
channels.push_back(Channel());
channels.back().name="width";
channels.back().color=Gdk::Color("#00ff00");
}
else
if (type == type_dash_item)
{
channels.push_back(Channel());
channels.back().name="offset";
channels.back().color=Gdk::Color("#ff0000");
channels.push_back(Channel());
channels.back().name="length";
channels.back().color=Gdk::Color("#00ff00");
}
else
{
throw synfig::Exception::BadType("Bad type for curves");
}
}
void clear_all_values()
{
std::vector<Channel>::iterator iter;
for(iter=channels.begin();iter!=channels.end();++iter)
iter->values.clear();
}
synfig::Real get_value(int chan, synfig::Real time, synfig::Real tolerance)
{
std::map<synfig::Real,synfig::Real>::iterator iter;
// First check to see if we have a value
// that is "close enough" to the time
// we are looking for
iter=channels[chan].values.lower_bound(time);
if(iter!=channels[chan].values.end() && iter->first-time<=tolerance)
return -iter->second;
// Since that didn't work, we now need
// to go ahead and figure out what the
// actual value is at that time.
ValueBase value(value_desc.get_value(time));
Type &type(value.get_type());
if (type == type_real)
channels[0].values[time]=value.get(Real());
else
if (type == type_time)
channels[0].values[time]=value.get(Time());
else
if (type == type_integer)
channels[0].values[time]=value.get(int());
else
if (type == type_bool)
channels[0].values[time]=value.get(bool());
else
if (type == type_angle)
channels[0].values[time]=Angle::rad(value.get(Angle())).get();
else
if (type == type_color)
{
channels[0].values[time]=value.get(Color()).get_r();
channels[1].values[time]=value.get(Color()).get_g();
channels[2].values[time]=value.get(Color()).get_b();
channels[3].values[time]=value.get(Color()).get_a();
}
else
if (type == type_vector)
{
channels[0].values[time]=value.get(Vector())[0];
channels[1].values[time]=value.get(Vector())[1];
}
else
if (type == type_bline_point)
{
channels[0].values[time]=value.get(BLinePoint()).get_vertex()[0];
channels[1].values[time]=value.get(BLinePoint()).get_vertex()[1];
channels[2].values[time]=value.get(BLinePoint()).get_width();
channels[3].values[time]=value.get(BLinePoint()).get_origin();
channels[4].values[time]=value.get(BLinePoint()).get_split_tangent_both();
channels[5].values[time]=value.get(BLinePoint()).get_tangent1()[0];
channels[6].values[time]=value.get(BLinePoint()).get_tangent1()[1];
channels[7].values[time]=value.get(BLinePoint()).get_tangent2()[0];
channels[8].values[time]=value.get(BLinePoint()).get_tangent2()[1];
channels[9].values[time]=value.get(BLinePoint()).get_split_tangent_radius();
channels[10].values[time]=value.get(BLinePoint()).get_split_tangent_angle();
}
else
if (type == type_width_point)
{
channels[0].values[time]=value.get(WidthPoint()).get_position();
channels[1].values[time]=value.get(WidthPoint()).get_width();
}
else
{
return 0;
}
return -channels[chan].values[time];
}
static bool is_not_supported(const synfigapp::ValueDesc& x)
{
return x.get_value_type() == type_string
|| x.get_value_type() == type_canvas
|| x.get_value_type() == type_gradient
|| x.get_value_type() == type_list
|| x.get_value_type() == type_segment;
}
};
/* === M E T H O D S ======================================================= */
Widget_Curves::Widget_Curves():
range_adjustment_(Gtk::Adjustment::create(-1,-2,2,0.1,0.1,2))
{
set_size_request(64,64);
range_adjustment_->signal_changed().connect(
sigc::mem_fun(
*this,
&Widget_Curves::queue_draw
)
);
range_adjustment_->signal_value_changed().connect(
sigc::mem_fun(
*this,
&Widget_Curves::queue_draw
)
);
//set_vadjustment(range_adjustment_);
add_events(Gdk::BUTTON_PRESS_MASK | Gdk::BUTTON_RELEASE_MASK);
}
Widget_Curves::~Widget_Curves()
{
}
void
Widget_Curves::set_time_adjustment(const Glib::RefPtr<Gtk::Adjustment> &x)
{
time_adjustment_=x;
time_adjustment_->signal_changed().connect(
sigc::mem_fun(
*this,
&Widget_Curves::queue_draw
)
);
time_adjustment_->signal_value_changed().connect(
sigc::mem_fun(
*this,
&Widget_Curves::queue_draw
)
);
//set_hadjustment(*time_adjustment_);
}
void
Widget_Curves::clear()
{
curve_list_.clear();
}
void
Widget_Curves::refresh()
{
std::list<CurveStruct>::iterator curve_iter;
for(curve_iter=curve_list_.begin();curve_iter!=curve_list_.end();++curve_iter)
{
curve_iter->clear_all_values();
}
queue_draw();
}
void
Widget_Curves::set_value_descs(std::list<synfigapp::ValueDesc> value_descs)
{
curve_list_.clear();
std::list<synfigapp::ValueDesc>::iterator iter;
for(iter=value_descs.begin();iter!=value_descs.end();++iter)
{
if (CurveStruct::is_not_supported(*iter))
continue;
try {
curve_list_.push_back(*iter);
if(iter->is_value_node())
{
iter->get_value_node()->signal_changed().connect(
sigc::mem_fun(
*this,
&studio::Widget_Curves::refresh
)
);
}
if(iter->parent_is_value_node())
{
iter->get_parent_value_node()->signal_changed().connect(
sigc::mem_fun(
*this,
&studio::Widget_Curves::refresh
)
);
}
if(iter->parent_is_layer_param())
{
iter->get_layer()->signal_changed().connect(
sigc::mem_fun(
*this,
&studio::Widget_Curves::refresh
)
);
}
}catch(synfig::Exception::BadType)
{
continue;
}
}
queue_draw();
}
bool
Widget_Curves::on_event(GdkEvent *event)
{
switch(event->type)
{
case GDK_SCROLL:
switch(event->scroll.direction)
{
case GDK_SCROLL_UP:
range_adjustment_->set_page_size(range_adjustment_->get_page_size()/1.25);
range_adjustment_->changed();
break;
case GDK_SCROLL_DOWN:
range_adjustment_->set_page_size(range_adjustment_->get_page_size()*1.25);
range_adjustment_->changed();
break;
default:
break;
}
break;
default:
return Gtk::DrawingArea::on_event(event);
break;
}
return true;
/* switch(event->type)
{
case GDK_BUTTON_PRESS:
if(event->button.button==1)
{
signal_activate_();
return true;
}
if(event->button.button==3)
{
signal_secondary_();
return true;
}
break;
default:
break;
}
return false;
*/
}
bool
Widget_Curves::on_draw(const Cairo::RefPtr<Cairo::Context> &cr)
{
const int h(get_height());
const int w(get_width());
get_style_context()->render_background(cr, 0, 0, w, h);
if(!time_adjustment_ || !range_adjustment_ || !h || !w)
return false;
if(!curve_list_.size())
return false;
const Real t_begin(time_adjustment_->get_lower());
const Real t_end(time_adjustment_->get_upper());
const Real dt((t_end-t_begin)/w);
const Real r_bottom(range_adjustment_->get_value());
const Real r_top(r_bottom+range_adjustment_->get_page_size());
const Real dr((r_top-r_bottom)/h);
Real r_max(-100000000);
Real r_min(100000000);
std::list<CurveStruct>::iterator curve_iter;
//Figure out maximun number of channels
for(curve_iter=curve_list_.begin();curve_iter!=curve_list_.end();++curve_iter)
{
int channels(curve_iter->channels.size());
if(channels>MAX_CHANNELS)
{
channels=MAX_CHANNELS;
synfig::warning("Not allowed more than %d channels! Truncating...", MAX_CHANNELS);
}
}
// and use it when sizing the points
vector<Gdk::Point> points[MAX_CHANNELS];
// Draw zero mark
cr->set_source_rgb(0.31, 0.31, 0.31);
cr->rectangle(0, round_to_int((0-r_bottom)/dr), w, 0);
cr->stroke();
// This try to find a valid vanvas to show the keyframes of those
// valuenodes. If not canvas found then no keyframes marks are shown.
synfig::Canvas::Handle canvas=0;
for(curve_iter=curve_list_.begin();curve_iter!=curve_list_.end();++curve_iter)
{
canvas=curve_iter->value_desc.get_canvas();
if(canvas)
break;
}
if(canvas)
{
// Draw vertical lines for the keyframes marks.
const synfig::KeyframeList& keyframe_list(canvas->keyframe_list());
synfig::KeyframeList::const_iterator iter;
for(iter=keyframe_list.begin();iter!=keyframe_list.end();++iter)
{
if(!iter->get_time().is_valid())
continue;
const int x((int)((float)w/(t_end-t_begin)*(iter->get_time()-t_begin)));
if(iter->get_time()>=t_begin && iter->get_time()<t_end)
{
cr->set_source_rgb(0.63, 0.5, 0.5);
cr->rectangle(x, 0, 1, h);
cr->fill();
}
}
}
// Draw current time
cr->set_source_rgb(0, 0, 1);
cr->rectangle(round_to_int((time_adjustment_->get_value()-t_begin)/dt), 0, 0, h);
cr->stroke();
// Draw curves for the valuenodes stored in the curve list
for(curve_iter=curve_list_.begin();curve_iter!=curve_list_.end();++curve_iter)
{
Real t;
int i;
int channels(curve_iter->channels.size());
for(i=0;i<channels;i++)
points[i].clear();
for(i=0,t=t_begin;i<w;i++,t+=dt)
{
for(int chan=0;chan<channels;chan++)
{
Real x(curve_iter->get_value(chan,t,dt));
r_max=max(r_max,x);
r_min=min(r_min,x);
points[chan].push_back(
Gdk::Point(
i,
round_to_int(
(
x-r_bottom
)/dr
)
)
);
}
}
for(int chan=0;chan<channels;chan++)
{
// Draw the curve
std::vector<Gdk::Point> &p = points[chan];
for(std::vector<Gdk::Point>::iterator i = p.begin(); i != p.end(); ++i)
{
if (i == p.begin())
cr->move_to(i->get_x(), i->get_y());
else
cr->line_to(i->get_x(), i->get_y());
}
const Gdk::Color &color = curve_iter->channels[chan].color;
cr->set_source_rgb(color.get_red_p(), color.get_green_p(), color.get_blue_p());
cr->stroke();
Glib::RefPtr<Pango::Layout> layout(Pango::Layout::create(get_pango_context()));
layout->set_text(curve_iter->channels[chan].name);
cr->move_to(1, points[chan][0].get_y()+1);
layout->show_in_cairo_context(cr);
}
}
if(!curve_list_.empty())
{
range_adjustment_->set_upper(r_max+range_adjustment_->get_page_size()/2);
range_adjustment_->set_lower(r_min-range_adjustment_->get_page_size()/2);
}
if (get_window())
get_window()->get_update_area();
return true;
}