/*
 *  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 "ilabel.h"

ILabel::ILabel (Glib::ustring lab) : label(lab) {}

void ILabel::on_realize() {

    Gtk::DrawingArea::on_realize();
    add_events(Gdk::EXPOSURE_MASK);

    Glib::RefPtr<Pango::Layout> fn = create_pango_layout(label);
    fn->set_markup (label);
    int labw, labh;
    fn->get_pixel_size (labw, labh);
    set_size_request (2+labw,2+labh);

    signal_style_changed().connect( sigc::mem_fun(*this, &ILabel::styleChanged) );
}

bool ILabel::on_expose_event (GdkEventExpose* event) {

    Glib::RefPtr<Gtk::Style> style = get_style ();
    Glib::RefPtr<Gdk::Window> window = get_window();
    Glib::RefPtr<Gdk::GC> gc_ = style->get_bg_gc(get_state());
    Cairo::RefPtr<Cairo::Context> cr = window->create_cairo_context();

    Gdk::Color c = style->get_fg (get_state());
    cr->set_source_rgb (c.get_red_p(), c.get_green_p(), c.get_blue_p());
    cr->rectangle (0, 0, get_width (), get_height());
    cr->fill ();

    Glib::RefPtr<Pango::Layout> fn = create_pango_layout (label);
    fn->set_markup (label);
    window->draw_layout(gc_, 1, 1, fn);

    return true;
}

void ILabel::styleChanged (const Glib::RefPtr<Gtk::Style>& style) {

    Glib::RefPtr<Pango::Layout> fn = create_pango_layout(label);
    fn->set_markup (label);
    int labw, labh;
    fn->get_pixel_size (labw, labh);
    set_size_request (2+labw,2+labh);
}
