#include <stdlib.h>
#include <gtk/gtk.h>
#include <string.h>

static GdkColor couleur[] =
{
  {0, 0xFFFF, 0x0, 0x0},
  {0, 0xFFFF, 0x0, 0x7530},
  {0, 0xFFFF, 0x7530, 0xFDE8},
};

int Rectangle(GtkWidget *widget);
int EchelleCouleur(GtkWidget *widget);

int main(int argc, char **argv)
{
    GtkWidget *fenetre, *Vbox, *Hbox, *bouton[1], *area;

    gtk_init (&argc, &argv);

    fenetre = gtk_window_new(GTK_WINDOW_TOPLEVEL);
    gtk_container_set_border_width(GTK_CONTAINER(fenetre), 5);
    gtk_window_set_title(GTK_WINDOW(fenetre), "Simulateur hydraulique de Colonnes Pulsees");
    gtk_window_set_default_size(GTK_WINDOW(fenetre), 320, 200);
    g_signal_connect(G_OBJECT(fenetre), "destroy", G_CALLBACK(gtk_main_quit), NULL);

    Vbox = gtk_vbox_new(FALSE, 0);
    gtk_container_add(GTK_CONTAINER(fenetre), Vbox);

    Hbox = gtk_hbox_new(TRUE, 0);
    gtk_box_pack_start(GTK_BOX(Vbox), Hbox, FALSE, FALSE, 0);

    bouton[0] = gtk_button_new_with_label("Lecture/Reprise");
    gtk_box_pack_start(GTK_BOX(Hbox), bouton[0], TRUE, TRUE, 0);

    bouton[1] = gtk_button_new_with_label("Pause");
    gtk_box_pack_start(GTK_BOX(Hbox), bouton[1], TRUE, TRUE, 0);

    area = gtk_drawing_area_new();
    gtk_drawing_area_size((GtkDrawingArea*)area, 500, 500);
    gtk_box_pack_start(GTK_BOX(Vbox), area, TRUE, TRUE, 5);

    g_signal_connect(G_OBJECT(area), "expose-event", G_CALLBACK(Rectangle), NULL);
    g_signal_connect(G_OBJECT(area), "expose-event", G_CALLBACK(EchelleCouleur), NULL);

    gtk_widget_show_all(fenetre);

    gtk_main();
    return 0;
}

int Rectangle(GtkWidget *widget)
{

    gdk_draw_rectangle(widget->window, widget->style->black_gc, FALSE, 225, 100, 50, 300);

    for(int i=0; i<6; i++)
    {
        gdk_draw_rectangle(widget->window, widget->style->white_gc, FALSE, 225, 100+50*i, 50, 50);
    }
    return 0;
}

int EchelleCouleur(GtkWidget *widget)
{
    GdkFont *font = NULL;
    font = gdk_font_load ("-Adobe-Helvetica-Bold-R-Normal--*-100-*-*-*-*-*-*");

    GdkColormap *colormap;
    colormap = gdk_drawable_get_colormap(widget->window);

    for(int i=0; i<3; i++)
    {

        gdk_colormap_alloc_color(colormap,&couleur[i],TRUE, FALSE);

        gdk_gc_set_foreground(widget->style->fg_gc[GTK_WIDGET_STATE(widget)], &couleur[i]);

        gdk_colormap_alloc_color(colormap,&couleur[i],TRUE, FALSE);

        gdk_gc_set_foreground(widget->style->fg_gc[GTK_WIDGET_STATE(widget)], &couleur[i]);

        gdk_draw_rectangle(widget->window, widget->style->fg_gc[GTK_WIDGET_STATE(widget)], TRUE, 50, 240+55*i, 50, 50);
    }

    gdk_draw_string (widget->window, font, widget->style->black_gc, 105, 270, "0");
    gdk_draw_string (widget->window, font, widget->style->black_gc, 105, 320, "10");
    gdk_draw_string (widget->window, font, widget->style->black_gc, 105, 375, "20");



    return 0;
}