/* Copyright 2005 Nicholas Bishop
 * 
 * This file is part of SharpConstruct.
 *
 * SharpConstruct 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.
 *
 * SharpConstruct 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.
 *
 * You should have received a copy of the GNU General Public License
 * along with SharpConstruct; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

#include "Deformations.hh"
#include <gtkmm/checkbutton.h>
#include <gtkmm/colorbutton.h>

using SharpConstruct::GInterface::Deformations;

Deformations::Deformations()
: flood_( 0, 100 )
{}

void Deformations::Initialize( Glib::RefPtr< Gnome::Glade::Xml > glade )
{
	using sigc::mem_fun;

	glade_ = glade;

	// Connect immediates
	glade_->connect_clicked( "DefSubdivide", mem_fun( *this, &Deformations::Subdivide ) );
	glade_->connect_clicked( "DefMirror", mem_fun( *this, &Deformations::on_mirror_ ) );
	glade_->connect_clicked( "DefFlipNormals", mem_fun( *this, &Deformations::FlipNormals ) );
	glade_->connect_clicked( "DefUnify", mem_fun( *this, &Deformations::Unify ) );
	glade_->connect_clicked( "DefToTriangles", mem_fun( *this, &Deformations::ToTriangles ) );

	Gtk::Table* pt;
	glade_->get_widget( "PreviewableTable", pt );

	pt->attach( move_,     1, 2, 0, 1 );
	pt->attach( scale_,    1, 2, 1, 2 );
	pt->attach( deflate_,  1, 2, 2, 3 );
	pt->attach( spherize_, 1, 2, 3, 4 );
	pt->attach( smooth_,   1, 2, 4, 5 );
	pt->attach( flood_,    1, 2, 5, 6 );

	std::list< Slider* > sliders;
	sliders.push_back( &move_ );
	sliders.push_back( &scale_ );
	sliders.push_back( &deflate_ );
	sliders.push_back( &spherize_ );
	sliders.push_back( &smooth_ );
	sliders.push_back( &flood_ );

	move_.SignalContinue().connect( mem_fun( *this, &Deformations::on_move_ ) );
	move_.SignalEnd().connect( mem_fun( *this, &Deformations::on_move_ ) );
	scale_.SignalContinue().connect( mem_fun( *this, &Deformations::on_scale_ ) );
	scale_.SignalEnd().connect( mem_fun( *this, &Deformations::on_scale_ ) );
	deflate_.SignalContinue().connect( mem_fun( *this, &Deformations::on_deflate_ ) );
	deflate_.SignalEnd().connect( mem_fun( *this, &Deformations::on_deflate_ ) );
	spherize_.SignalContinue().connect( mem_fun( *this, &Deformations::on_spherize_ ) );
	spherize_.SignalEnd().connect( mem_fun( *this, &Deformations::on_spherize_ ) );
	smooth_.SignalContinue().connect( mem_fun( *this, &Deformations::on_smooth_ ) );
	smooth_.SignalEnd().connect( mem_fun( *this, &Deformations::on_smooth_ ) );
	flood_.SignalContinue().connect( mem_fun( *this, &Deformations::on_flood_ ) );
	flood_.SignalEnd().connect( mem_fun( *this, &Deformations::on_flood_ ) );

	for( std::list< Slider* >::iterator i = sliders.begin();
	     i != sliders.end(); ++i )
	{
		( *i )->SignalStart().connect( mem_fun( *this, &Deformations::before_deformation_ ) );
		( *i )->SignalEnd().connect( mem_fun( *this, &Deformations::after_deformation_ ) );
	}
}

bool Deformations::x_() const
{
	Gtk::ToggleButton* tb;
	glade_->get_widget( "DefX", tb );
	return tb->get_active();
}

bool Deformations::y_() const
{
	Gtk::ToggleButton* tb;
	glade_->get_widget( "DefY", tb );
	return tb->get_active();
}

bool Deformations::z_() const
{
	Gtk::ToggleButton* tb;
	glade_->get_widget( "DefZ", tb );
	return tb->get_active();
}

bool Deformations::preview_() const
{
	Gtk::CheckButton* cb;
	glade_->get_widget( "PreviewDeformations", cb );
	return cb->get_active();
}

void Deformations::Subdivide()
{	
	Gtk::CheckButton* cb;
	glade_->get_widget( "DefSubdivideSmooth", cb );
	MeshHistory::Instance().AddMesh( true, true, true );
	MeshHistory::Instance().GetCurrentMesh().Subdivide( cb->get_active() );
	MeshHistory::Instance().GetCurrentMesh().RecalculateAllNormals();
}
void Deformations::on_mirror_()
{
	MeshHistory::Instance().AddMesh( true, false, true );
	MeshHistory::Instance().GetCurrentMesh().Mirror( x_(), y_(), z_() );
}
void Deformations::FlipNormals()
{
	MeshHistory::Instance().AddMesh( false, false, true );
	MeshHistory::Instance().GetCurrentMesh().FlipNormals();
}
void Deformations::Unify()
{
	MeshHistory::Instance().AddMesh( true, true, true );
	MeshHistory::Instance().GetCurrentMesh().Unify();
}
void Deformations::ToTriangles()
{
	MeshHistory::Instance().AddMesh( true, true, true );
	MeshHistory::Instance().GetCurrentMesh().ToTriangles();
}

void Deformations::before_deformation_( const double )
{
	if( preview_() )
	{
		mesh_copy_.SetVertices( new MeshHistory::PartialMesh::PartialVertexData );
		mesh_copy_.SetColors( new MeshHistory::PartialMesh::PartialColorData );
		*mesh_copy_.Vertices() = *MeshHistory::Instance().CurrentComposite().Vertices();
		*mesh_copy_.Colors() = *MeshHistory::Instance().CurrentComposite().Colors();
	}
}

void Deformations::revert_to_copy_()
{
	*MeshHistory::Instance().CurrentComposite().Vertices() =
		*mesh_copy_.Vertices();
	*MeshHistory::Instance().CurrentComposite().Colors() =
		*mesh_copy_.Colors();
}

void Deformations::on_move_( const double v )
{
	if( preview_() || !move_.InSlide() )
	{
		if( preview_() )
			revert_to_copy_();
		else
			MeshHistory::Instance().AddMesh( true, false, false );

		float scaled_value = v / 100;
		scaled_value *= MeshHistory::Instance().GetCurrentMesh().Diameter();
		MeshHistory::Instance().GetCurrentMesh().Move
			( scaled_value * x_(), scaled_value * y_(), scaled_value * z_() );
	}
}

void Deformations::on_scale_( const double v )
{
	if( preview_() || !scale_.InSlide() )
	{
		if( preview_() )
			revert_to_copy_();
		else
			MeshHistory::Instance().AddMesh( true, false, false );

		float clipped_value = v / 50;
		if( clipped_value > 0 )
			clipped_value++;
		else
			clipped_value--;
		MeshHistory::Instance().GetCurrentMesh().Resize( clipped_value * x_(),
								 clipped_value * y_(),
								 clipped_value * z_() );
	}
}

void Deformations::on_deflate_( const double v )
{
	if( preview_() || !deflate_.InSlide() )
	{
		if( preview_() )
			revert_to_copy_();
		else
			MeshHistory::Instance().AddMesh( true, false, false );

		MeshHistory::Instance().GetCurrentMesh().Deflate( v / 200 );
	}
}

void Deformations::on_spherize_( const double v )
{
	if( preview_() || !spherize_.InSlide() )
	{
		if( preview_() )
			revert_to_copy_();
		else
			MeshHistory::Instance().AddMesh( true, false, false );

		MeshHistory::Instance().GetCurrentMesh().Spherize( v / 100 );
	}
}

void Deformations::on_smooth_( const double v )
{
	if( preview_() || !smooth_.InSlide() )
	{
		if( preview_() )
			revert_to_copy_();
		else
			MeshHistory::Instance().AddMesh( true, false, false );

		MeshHistory::Instance().GetCurrentMesh().Smooth( v / 100 );
	}
}

void Deformations::on_flood_( const double v )
{
	if( preview_() || !flood_.InSlide() )
	{
		if( preview_() )
			revert_to_copy_();
		else
			MeshHistory::Instance().AddMesh( false, true, false );

		Gtk::ColorButton* cb;
		glade_->get_widget( "DefColor", cb );
		const Gdk::Color gcol( cb->get_color() );
		Color color( gcol.get_red_p(), gcol.get_green_p(), gcol.get_blue_p() );;
		MeshHistory::Instance().GetCurrentMesh().Flood( color, v / 100 );
	}
}


void Deformations::after_deformation_( const double )
{
	if( preview_() )
	{
		MeshHistory::PartialMesh::PartialVertexData* pvd =
			MeshHistory::Instance().CurrentComposite().Vertices();
		MeshHistory::PartialMesh::PartialColorData* pcd =
			MeshHistory::Instance().CurrentComposite().Colors();
		MeshHistory::Instance().AddMesh( true, true, false );
		*pvd = *mesh_copy_.Vertices();
		*pcd = *mesh_copy_.Colors();
	}
}