/*
 * main.c
 * Copyright (C) Micah Carrick 2006 <email@micahcarrick.com>
 *
 * main.c is free software.
 *
 * You may 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.
 *
 * main.c 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 main.c.  If not, write to:
 *     The Free Software Foundation, Inc.,
 *     51 Franklin Street, Fifth Floor
 *     Boston, MA  02110-1301, USA.
 */

/*
gcc -o dialogs2 -Wall -g main.c `pkg-config gtk+-2.0 --cflags --libs `-I/usr/include/libglade-2.0 -lglade-2.0
*/

#include <gtk/gtk.h>
#include <glade/glade.h>

/* glade interface file is in same path as the executable */
#define GLADE_FILE "gui.glade"
     
/* signal callbacks */
void on_window_destroy (GtkWidget *widget, gpointer user_data);
void on_font_button_clicked (GtkWidget *widget, gpointer user_data);
void on_color_button_clicked (GtkWidget *widget, gpointer user_data);
               
int
main (int argc, char *argv[])
{
       
        GtkWidget *window; 
        GtkWidget *label;
        GladeXML *gxml;
       
        /* initialize the GTK+ library */
        gtk_init (&argc, &argv);

        /*
        create an instance of the GladeXML object and build widgets within
        the "window" root node.  We don't want to build the other nodes (the
        two dialogs) until/unless we need them.
        */
        gxml = glade_xml_new (GLADE_FILE, "window", NULL);
       
        /* get the window & label widgets from the glade XML file */
        window = glade_xml_get_widget(gxml, "window");
        label = glade_xml_get_widget(gxml, "website_label");
       
        /* connect destroy signal */
        glade_xml_signal_connect (gxml, "on_window_destroy",
                G_CALLBACK(on_window_destroy));
       
        /* connect button signals and pass reference to label */
        glade_xml_signal_connect_data (gxml, "on_color_button_clicked",
                G_CALLBACK(on_color_button_clicked), label);
               
        glade_xml_signal_connect_data (gxml, "on_font_button_clicked",
                G_CALLBACK(on_font_button_clicked), label);

                       
        /* show the main window */
        gtk_widget_show (window);

        /* begin main GTK loop */
        gtk_main ();
       
        return 0;     
}

void
on_window_destroy (GtkWidget *widget, gpointer user_data)
{
        /* break gtk_main() loop */
        gtk_main_quit();                       
}

void
on_font_button_clicked (GtkWidget *widget, gpointer user_data)
{
        /*
        The font dialog is inside the glade file.  We build the widgets in
        the glade file starting with "font_dialog" as the root node so as not
        to re-build the window1 and asscoiated widgets. 
        */
       
        GladeXML *gxml = glade_xml_new (GLADE_FILE, "font_dialog", NULL);
        GtkWidget *dialog = glade_xml_get_widget(gxml, "font_dialog");
        GtkResponseType result;
       
        result = gtk_dialog_run(GTK_DIALOG(dialog));

        if (result == GTK_RESPONSE_OK || result == GTK_RESPONSE_APPLY)
        {
                /* If user clicks "Ok" or "Apply" we will set the font */
               
                PangoFontDescription *font_desc;
                gchar *font_name = gtk_font_selection_dialog_get_font_name(
                                        GTK_FONT_SELECTION_DIALOG(dialog));
               
                font_desc = pango_font_description_from_string (font_name);
               
                /* assign font to the label widget which is passed in user_data */
                gtk_widget_modify_font (GTK_WIDGET(user_data), font_desc);
               
                /* free memory used by font name string */
                g_free(font_name);
        }
       
        /* destroy widget */
        gtk_widget_destroy(dialog);
}

void
on_color_button_clicked (GtkWidget *widget, gpointer user_data)
{
        /*
        The color dialog is inside the glade file.  We build the widgets in
        the glade file starting with "color_dialog" as the root node so as not
        to re-build the window1 and asscoiated widgets. 
        */
       
        GladeXML *gxml = glade_xml_new (GLADE_FILE, "color_dialog", NULL);
        GtkWidget *dialog = glade_xml_get_widget(gxml, "color_dialog");
        GtkResponseType result;
       
        result = gtk_dialog_run(GTK_DIALOG(dialog));

        if (result == GTK_RESPONSE_OK)
        {
                /*
                Get the GtkColorSelection widget which is part of the
                GtkColorSelectionDialog named "color_select" in the glade file.
                */
                GdkColor color;
                GtkWidget *color_select = glade_xml_get_widget(
                                gxml,
                                "color_select");
                               
                gtk_color_selection_get_current_color(
                                GTK_COLOR_SELECTION(color_select),
                                &color);
               
                /* modify the foreground color of the lable widget */
                gtk_widget_modify_fg (GTK_WIDGET(user_data),
                                GTK_STATE_NORMAL,
                                &color);
               
        }
       
        /* destroy widget */
        gtk_widget_destroy(dialog);                         
}