/*
 *  This file is part of RawTherapee.
 *
 *  Copyright (c) 2004-2010 Gabor Horvath <hgabor@rawtherapee.com>
 *
 *  RawTherapee 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 3 of the License, or
 *  (at your option) any later version.
 * 
 *  RawTherapee 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 RawTherapee.  If not, see <http://www.gnu.org/licenses/>.
 */
#include <filterpanel.h>
#include <multilangmgr.h>
#include <rtengine.h>

using namespace rtengine;

FilterPanel::FilterPanel () : listener (NULL) {

	set_border_width (4);

	enabled = Gtk::manage (new Gtk::CheckButton (M("EXIFFILTER_METADATAFILTER")));
	pack_start (*enabled, Gtk::PACK_SHRINK, 2);
	pack_start (*Gtk::manage(new Gtk::HSeparator ()), Gtk::PACK_SHRINK, 2);
	
	enaFNumber = Gtk::manage (new Gtk::CheckButton (M("EXIFFILTER_APERTURE")+":"));
	Gtk::VBox* fnvb = Gtk::manage(new Gtk::VBox ());
    Gtk::HBox* fnhb = Gtk::manage(new Gtk::HBox ());
	fnvb->pack_start (*enaFNumber, Gtk::PACK_SHRINK, 0);
    fnumberFrom = Gtk::manage(new Gtk::Entry ());
    fnumberTo = Gtk::manage(new Gtk::Entry ());    
    fnhb->pack_start (*fnumberFrom, true, true, 2);
    fnhb->pack_start (*Gtk::manage(new Gtk::Label(" - ")), false, false, 4);
    fnhb->pack_start (*fnumberTo, true, true, 2);
	fnvb->pack_start (*fnhb, Gtk::PACK_SHRINK, 0);
	pack_start (*fnvb, Gtk::PACK_SHRINK, 4);

    enaShutter = Gtk::manage(new Gtk::CheckButton(M("EXIFFILTER_SHUTTER")+":"));
	Gtk::VBox* svb = Gtk::manage(new Gtk::VBox ());
    Gtk::HBox* shb = Gtk::manage(new Gtk::HBox ());
	svb->pack_start (*enaShutter, Gtk::PACK_SHRINK, 0);
    shutterFrom = Gtk::manage(new Gtk::Entry ());
    shutterTo = Gtk::manage(new Gtk::Entry ());    
    shb->pack_start (*shutterFrom, true, true, 2);
    shb->pack_start (*Gtk::manage(new Gtk::Label(" - ")), false, false, 4);
    shb->pack_start (*shutterTo, true, true, 2);
	svb->pack_start (*shb, Gtk::PACK_SHRINK, 0);
	pack_start (*svb, Gtk::PACK_SHRINK, 4);

    enaISO = Gtk::manage(new Gtk::CheckButton(M("EXIFFILTER_ISO")+":"));
	Gtk::VBox* ivb = Gtk::manage(new Gtk::VBox ());
    Gtk::HBox* ihb = Gtk::manage(new Gtk::HBox ());
	ivb->pack_start (*enaISO, Gtk::PACK_SHRINK, 0);
    isoFrom = Gtk::manage(new Gtk::Entry ());
    isoTo = Gtk::manage(new Gtk::Entry ());    
    ihb->pack_start (*isoFrom, true, true, 2);
    ihb->pack_start (*Gtk::manage(new Gtk::Label(" - ")), false, false, 4);
    ihb->pack_start (*isoTo, true, true, 2);
	ivb->pack_start (*ihb, Gtk::PACK_SHRINK, 0);
	pack_start (*ivb, Gtk::PACK_SHRINK, 4);
	
    enaFocalLen = Gtk::manage(new Gtk::CheckButton(M("EXIFFILTER_FOCALLEN")+":"));
    Gtk::VBox* fvb = Gtk::manage(new Gtk::VBox ());
    Gtk::HBox* fhb = Gtk::manage(new Gtk::HBox ());
	fvb->pack_start (*enaFocalLen, Gtk::PACK_SHRINK, 0);
    focalFrom = Gtk::manage(new Gtk::Entry ());
    focalTo = Gtk::manage(new Gtk::Entry ());    
    fhb->pack_start (*focalFrom, true, true, 2);
    fhb->pack_start (*Gtk::manage(new Gtk::Label(" - ")), false, false, 4);
    fhb->pack_start (*focalTo, true, true, 2);
	fvb->pack_start (*fhb, Gtk::PACK_SHRINK, 0);
	pack_start (*fvb, Gtk::PACK_SHRINK, 4);

    enaCamera = Gtk::manage(new Gtk::CheckButton(M("EXIFFILTER_CAMERA")+":"));
    Gtk::VBox* cvb = Gtk::manage(new Gtk::VBox ());
	cvb->pack_start (*enaCamera, Gtk::PACK_SHRINK, 0);
    camera = Gtk::manage(new Gtk::ListViewText (1, false, Gtk::SELECTION_MULTIPLE));
    camera->set_headers_visible (false);
    Gtk::ScrolledWindow* scamera = Gtk::manage(new Gtk::ScrolledWindow());
    scamera->set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_ALWAYS);
    scamera->add(*camera);
	cvb->pack_start (*scamera, Gtk::PACK_SHRINK, 0);
	pack_start (*cvb, Gtk::PACK_SHRINK, 4);

    enaLens = Gtk::manage(new Gtk::CheckButton(M("EXIFFILTER_LENS")+":"));
    Gtk::VBox* lvb = Gtk::manage(new Gtk::VBox ());
	lvb->pack_start (*enaLens, Gtk::PACK_SHRINK, 0);
    lens = Gtk::manage(new Gtk::ListViewText (1, false, Gtk::SELECTION_MULTIPLE));
    lens->set_headers_visible (false);
    Gtk::ScrolledWindow* slens = Gtk::manage(new Gtk::ScrolledWindow());
    slens->set_policy(Gtk::POLICY_AUTOMATIC, Gtk::POLICY_ALWAYS);
    slens->add(*lens);
	lvb->pack_start (*slens, Gtk::PACK_SHRINK, 0);
	pack_start (*lvb, Gtk::PACK_SHRINK, 4);
	
	conns = 0;
	sChange[conns++] = fnumberFrom->signal_changed().connect (sigc::mem_fun(*this, &FilterPanel::valueChanged));
	sChange[conns++] = fnumberTo->signal_changed().connect (sigc::mem_fun(*this, &FilterPanel::valueChanged));
	sChange[conns++] = shutterFrom->signal_changed().connect (sigc::mem_fun(*this, &FilterPanel::valueChanged));
	sChange[conns++] = shutterTo->signal_changed().connect (sigc::mem_fun(*this, &FilterPanel::valueChanged));
	sChange[conns++] = isoFrom->signal_changed().connect (sigc::mem_fun(*this, &FilterPanel::valueChanged));
	sChange[conns++] = isoTo->signal_changed().connect (sigc::mem_fun(*this, &FilterPanel::valueChanged));
	sChange[conns++] = focalFrom->signal_changed().connect (sigc::mem_fun(*this, &FilterPanel::valueChanged));
	sChange[conns++] = focalTo->signal_changed().connect (sigc::mem_fun(*this, &FilterPanel::valueChanged));
    sChange[conns++] = camera->get_selection()->signal_changed().connect(sigc::mem_fun(*this, &FilterPanel::valueChanged));
    sChange[conns++] = lens->get_selection()->signal_changed().connect(sigc::mem_fun(*this, &FilterPanel::valueChanged));
    sChange[conns++] = enaFNumber->signal_toggled().connect( sigc::mem_fun(*this, &FilterPanel::valueChanged) );
    sChange[conns++] = enaShutter->signal_toggled().connect( sigc::mem_fun(*this, &FilterPanel::valueChanged) );
    sChange[conns++] = enaFocalLen->signal_toggled().connect( sigc::mem_fun(*this, &FilterPanel::valueChanged) );
    sChange[conns++] = enaISO->signal_toggled().connect( sigc::mem_fun(*this, &FilterPanel::valueChanged) );
    sChange[conns++] = enaCamera->signal_toggled().connect( sigc::mem_fun(*this, &FilterPanel::valueChanged) );
    sChange[conns++] = enaLens->signal_toggled().connect( sigc::mem_fun(*this, &FilterPanel::valueChanged) );
    sChange[conns++] = enabled->signal_toggled().connect( sigc::mem_fun(*this, &FilterPanel::valueChanged) );
	
	set_size_request (0, -1);
	
	show_all ();
}

void FilterPanel::setFilter (ExifFilterSettings& defefs, bool updateLists) {

	
	for (int i=0; i<conns; i++)
		sChange[i].block (true);
	
//	enaFNumber->set_active (curefs.filterFNumber);
    fnumberFrom->set_text (ImageMetaData::apertureToString (defefs.fnumberFrom));
    curefs.fnumberFrom = defefs.fnumberFrom;
    fnumberTo->set_text (ImageMetaData::apertureToString (defefs.fnumberTo));
    curefs.fnumberTo = defefs.fnumberTo;

//	enaShutter->set_active (curefs.filterShutter);
    shutterFrom->set_text (ImageMetaData::shutterToString (defefs.shutterFrom));
    curefs.shutterFrom = defefs.shutterFrom;
    shutterTo->set_text (ImageMetaData::shutterToString (defefs.shutterTo));
    curefs.shutterTo = defefs.shutterTo;

//	enaISO->set_active (curefs.filterISO);
    isoFrom->set_text (Glib::ustring::format (defefs.isoFrom));
    curefs.isoFrom = defefs.isoFrom;
    isoTo->set_text (Glib::ustring::format (defefs.isoTo));
    curefs.isoTo = defefs.isoTo;

//	enaFocalLen->set_active (curefs.filterFocalLen);
    focalFrom->set_text (Glib::ustring::format (defefs.focalFrom));
    curefs.focalFrom = defefs.focalFrom;
    focalTo->set_text (Glib::ustring::format (defefs.focalTo));
    curefs.focalTo = defefs.focalTo;

//	enaCamera->set_active (curefs.filterCamera);
    Glib::RefPtr<Gtk::TreeSelection> cselection = camera->get_selection ();

//	enaLens->set_active (curefs.filterLens);
    Glib::RefPtr<Gtk::TreeSelection> lselection = lens->get_selection ();
    if( updateLists ){
    	lens->clear_items();
    	curefs.lenses.clear();
    	for (std::set<std::string>::iterator i = defefs.lenses.begin(); i!=defefs.lenses.end(); i++) {
    		lens->append_text (*i);
    		curefs.lenses.insert(*i);
    	}
       	lselection->select_all();

       	camera->clear_items();
       	curefs.cameras.clear();
       	for (std::set<std::string>::iterator i = defefs.cameras.begin(); i!=defefs.cameras.end(); i++) {
       		camera->append_text(*i);
       		curefs.cameras.insert(*i);
       	}
       	cselection->select_all();
    }else{
    	for( Gtk::TreeModel::Children::iterator iter = lens->get_model()->children().begin(); iter != lens->get_model()->children().end();iter++){
    		Glib::ustring v;
    		iter->get_value(0,v);
    		if( defefs.lenses.find( v ) != defefs.lenses.end() )
    			lselection->select( iter );
    		else
    			lselection->unselect( iter );
    	}
    	for( Gtk::TreeModel::Children::iterator iter = camera->get_model()->children().begin(); iter != camera->get_model()->children().end();iter++){
    		Glib::ustring v;
    		iter->get_value(0,v);
    		if( defefs.cameras.find( v ) != defefs.cameras.end() )
    			cselection->select(iter);
    		else
    			cselection->unselect(iter);
    	}
    }

	curefs = defefs;

	for (int i=0; i<conns; i++)
		sChange[i].block (false);
}

bool FilterPanel::isEnabled () {

	return enabled->get_active () && is_sensitive();
}

ExifFilterSettings FilterPanel::getFilter () {

    ExifFilterSettings efs;
    efs.fnumberFrom = atof (fnumberFrom->get_text().c_str());
    efs.fnumberTo   = atof (fnumberTo->get_text().c_str());
    efs.focalFrom   = atof (focalFrom->get_text().c_str());
    efs.focalTo     = atof (focalTo->get_text().c_str());
    efs.isoFrom     = atoi (isoFrom->get_text().c_str());
    efs.isoTo       = atoi (isoTo->get_text().c_str());
    efs.shutterFrom = ImageMetaData::shutterFromString (shutterFrom->get_text());
    efs.shutterTo   = ImageMetaData::shutterFromString (shutterTo->get_text());
	
	efs.filterFNumber  = enaFNumber->get_active ();
	efs.filterShutter  = enaShutter->get_active ();
	efs.filterFocalLen = enaFocalLen->get_active ();
	efs.filterISO      = enaISO->get_active ();
	efs.filterCamera   = enaCamera->get_active ();
	efs.filterLens     = enaLens->get_active ();
	
    std::vector<int> sel = camera->get_selected ();
    for (int i=0; i<sel.size(); i++) 
        efs.cameras.insert (camera->get_text (sel[i]));
    sel = lens->get_selected ();
    for (int i=0; i<sel.size(); i++)
        efs.lenses.insert (lens->get_text (sel[i]));

    return efs;
}

void FilterPanel::valueChanged () {

	if (listener)
		listener->exifFilterChanged ();
}