/* === S Y N F I G ========================================================= */
/*! \file state_scale.cpp
** \brief Template File
**
** $Id$
**
** \legal
** Copyright (c) 2002-2005 Robert B. Quattlebaum Jr., Adrian Bentley
** Copyright (c) 2008 Chris Moore
** Copyright (c) 2010 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 <gtkmm/dialog.h>
#include <gtkmm/entry.h>
#include <synfig/valuenode_dynamiclist.h>
#include <synfigapp/action_system.h>
#include "state_scale.h"
#include "state_normal.h"
#include "canvasview.h"
#include "workarea.h"
#include "app.h"
#include <synfigapp/action.h>
#include "event_mouse.h"
#include "event_layerclick.h"
#include "docks/dock_toolbox.h"
#include "docks/dialog_tooloptions.h"
#include <gtkmm/optionmenu.h>
#include "duck.h"
#include <synfigapp/main.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 ========================================================= */
/* === G L O B A L S ======================================================= */
StateScale studio::state_scale;
/* === C L A S S E S & S T R U C T S ======================================= */
class DuckDrag_Scale : public DuckDrag_Base
{
synfig::Vector last_scale;
synfig::Vector drag_offset;
synfig::Vector center;
synfig::Vector snap;
std::vector<synfig::Vector> positions;
bool move_only;
bool bad_drag;
public:
bool lock_aspect;
DuckDrag_Scale();
void begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& begin);
bool end_duck_drag(Duckmatic* duckmatic);
void duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector);
};
class studio::StateScale_Context : public sigc::trackable
{
etl::handle<CanvasView> canvas_view_;
CanvasView::IsWorking is_working;
synfigapp::Settings& settings;
etl::handle<DuckDrag_Scale> duck_dragger_;
Gtk::Table options_table;
Gtk::CheckButton checkbutton_aspect_lock;
public:
bool get_aspect_lock_flag()const { return checkbutton_aspect_lock.get_active(); }
void set_aspect_lock_flag(bool x) { return checkbutton_aspect_lock.set_active(x); refresh_aspect_lock_flag(); }
void refresh_aspect_lock_flag() { if(duck_dragger_)duck_dragger_->lock_aspect=get_aspect_lock_flag(); }
Smach::event_result event_stop_handler(const Smach::event& x);
Smach::event_result event_refresh_tool_options(const Smach::event& x);
void refresh_tool_options();
StateScale_Context(CanvasView* canvas_view);
~StateScale_Context();
const etl::handle<CanvasView>& get_canvas_view()const{return canvas_view_;}
etl::handle<synfigapp::CanvasInterface> get_canvas_interface()const{return canvas_view_->canvas_interface();}
synfig::Canvas::Handle get_canvas()const{return canvas_view_->get_canvas();}
WorkArea * get_work_area()const{return canvas_view_->get_work_area();}
void load_settings();
void save_settings();
}; // END of class StateScale_Context
/* === M E T H O D S ======================================================= */
StateScale::StateScale():
Smach::state<StateScale_Context>("scale")
{
insert(event_def(EVENT_REFRESH_TOOL_OPTIONS,&StateScale_Context::event_refresh_tool_options));
insert(event_def(EVENT_STOP,&StateScale_Context::event_stop_handler));
}
StateScale::~StateScale()
{
}
void
StateScale_Context::load_settings()
{
try
{
synfig::ChangeLocale change_locale(LC_NUMERIC, "C");
String value;
if(settings.get_value("scale.lock_aspect",value) && value=="0")
set_aspect_lock_flag(false);
else
set_aspect_lock_flag(true);
}
catch(...)
{
synfig::warning("State Scale: Caught exception when attempting to load settings.");
}
}
void
StateScale_Context::save_settings()
{
try
{
synfig::ChangeLocale change_locale(LC_NUMERIC, "C");
settings.set_value("scale.lock_aspect",get_aspect_lock_flag()?"1":"0");
}
catch(...)
{
synfig::warning("State Scale: Caught exception when attempting to save settings.");
}
}
StateScale_Context::StateScale_Context(CanvasView* canvas_view):
canvas_view_(canvas_view),
is_working(*canvas_view),
settings(synfigapp::Main::get_selected_input_device()->settings()),
duck_dragger_(new DuckDrag_Scale()),
checkbutton_aspect_lock(_("Lock Aspect Ratio"))
{
// Set up the tool options dialog
options_table.attach(*manage(new Gtk::Label(_("Scale Tool"))), 0, 2, 0, 1, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
options_table.attach(checkbutton_aspect_lock, 0, 2, 1, 2, Gtk::EXPAND|Gtk::FILL, Gtk::EXPAND|Gtk::FILL, 0, 0);
checkbutton_aspect_lock.signal_toggled().connect(sigc::mem_fun(*this,&StateScale_Context::refresh_aspect_lock_flag));
options_table.show_all();
refresh_tool_options();
App::dialog_tool_options->present();
get_work_area()->set_allow_layer_clicks(true);
get_work_area()->set_duck_dragger(duck_dragger_);
get_work_area()->set_cursor(Gdk::SIZING);
// get_work_area()->reset_cursor();
App::dock_toolbox->refresh();
set_aspect_lock_flag(true);
load_settings();
}
void
StateScale_Context::refresh_tool_options()
{
App::dialog_tool_options->clear();
App::dialog_tool_options->set_widget(options_table);
App::dialog_tool_options->set_local_name(_("Scale Tool"));
App::dialog_tool_options->set_name("scale");
}
Smach::event_result
StateScale_Context::event_refresh_tool_options(const Smach::event& /*x*/)
{
refresh_tool_options();
return Smach::RESULT_ACCEPT;
}
Smach::event_result
StateScale_Context::event_stop_handler(const Smach::event& /*x*/)
{
throw &state_normal;
return Smach::RESULT_OK;
}
StateScale_Context::~StateScale_Context()
{
save_settings();
get_work_area()->clear_duck_dragger();
get_work_area()->reset_cursor();
App::dialog_tool_options->clear();
App::dock_toolbox->refresh();
}
DuckDrag_Scale::DuckDrag_Scale():
lock_aspect(true)
{
}
#ifndef EPSILON
#define EPSILON 0.0000001
#endif
void
DuckDrag_Scale::begin_duck_drag(Duckmatic* duckmatic, const synfig::Vector& offset)
{
last_scale=Vector(1,1);
const DuckList selected_ducks(duckmatic->get_selected_ducks());
DuckList::const_iterator iter;
//if(duckmatic->get_selected_ducks().size()<2)
//{
// bad_drag=true;
// return;
// }
bad_drag=false;
drag_offset=duckmatic->find_duck(offset)->get_trans_point();
//snap=drag_offset-duckmatic->snap_point_to_grid(drag_offset);
//snap=offset-drag_offset;
snap=Vector(0,0);
// Calculate center
Point vmin(100000000,100000000);
Point vmax(-100000000,-100000000);
//std::set<etl::handle<Duck> >::iterator iter;
positions.clear();
int i;
for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
{
Point p((*iter)->get_trans_point());
vmin[0]=min(vmin[0],p[0]);
vmin[1]=min(vmin[1],p[1]);
vmax[0]=max(vmax[0],p[0]);
vmax[1]=max(vmax[1],p[1]);
positions.push_back(p);
}
if((vmin-vmax).mag()<=EPSILON)
move_only=true;
else
move_only=false;
center=(vmin+vmax)*0.5;
}
void
DuckDrag_Scale::duck_drag(Duckmatic* duckmatic, const synfig::Vector& vector)
{
const DuckList selected_ducks(duckmatic->get_selected_ducks());
DuckList::const_iterator iter;
if(bad_drag)
return;
//std::set<etl::handle<Duck> >::iterator iter;
synfig::Vector vect(duckmatic->snap_point_to_grid(vector)-center);
last_scale=vect;
if(move_only)
{
int i;
for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
{
if(((*iter)->get_type()!=Duck::TYPE_VERTEX&&(*iter)->get_type()!=Duck::TYPE_POSITION))continue;
Vector p(positions[i]);
p[0]+=vect[0];
p[1]+=vect[1];
(*iter)->set_trans_point(p);
}
for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
{
if(!((*iter)->get_type()!=Duck::TYPE_VERTEX&&(*iter)->get_type()!=Duck::TYPE_POSITION))continue;
Vector p(positions[i]);
p[0]+=vect[0];
p[1]+=vect[1];
(*iter)->set_trans_point(p);
}
return;
}
if(!lock_aspect)
{
if(abs(drag_offset[0]-center[0])>EPSILON)
vect[0]/=drag_offset[0]-center[0];
else
vect[0]=1;
if(abs(drag_offset[1]-center[1])>EPSILON)
vect[1]/=drag_offset[1]-center[1];
else
vect[1]=1;
}
else
{
//vect[0]=vect[1]=vect.mag()*0.707106781;
Real amount(vect.mag()/(drag_offset-center).mag());
vect[0]=vect[1]=amount;
}
if(vect[0]<EPSILON && vect[0]>-EPSILON)
vect[0]=1;
if(vect[1]<EPSILON && vect[1]>-EPSILON)
vect[1]=1;
int i;
for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
{
if(((*iter)->get_type()!=Duck::TYPE_VERTEX&&(*iter)->get_type()!=Duck::TYPE_POSITION))continue;
Vector p(positions[i]-center);
p[0]*=vect[0];
p[1]*=vect[1];
p+=center;
(*iter)->set_trans_point(p);
}
for(i=0,iter=selected_ducks.begin();iter!=selected_ducks.end();++iter,i++)
{
if(!((*iter)->get_type()!=Duck::TYPE_VERTEX&&(*iter)->get_type()!=Duck::TYPE_POSITION))continue;
Vector p(positions[i]-center);
p[0]*=vect[0];
p[1]*=vect[1];
p+=center;
(*iter)->set_trans_point(p);
}
last_scale=vect;
//snap=Vector(0,0);
}
bool
DuckDrag_Scale::end_duck_drag(Duckmatic* duckmatic)
{
if(bad_drag)return false;
if((last_scale-Vector(1,1)).mag()>0.0001)
{
duckmatic->signal_edited_selected_ducks();
return true;
}
else
{
duckmatic->signal_user_click_selected_ducks(0);
return false;
}
}