/*

  * Copyright (C) 2010  J. Ali Harlow <ali@juiblex.co.uk>

  *

  * This program 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.

  *

  * This program 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 this program; if not, write to the Free Software Foundation, Inc.,

  * 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.

  */

 #include "config.h"

 #include <stdlib.h>

 #ifdef WIN32

 #include <windows.h>

 #endif	/* WIN32 */

 #include <glib.h>

 #include <gtk/gtk.h>

 #include <plover-gtk/stockicons.h>

 /* Checks whether a loader for SVG files has been registered

  * with GdkPixbuf.

  */

 static gboolean plover_pixbuf_supports_svg(void)

 {

     GSList *formats;

     GSList *tmp_list;

     static gint found_svg=-1;

     gchar **mime_types,**mime_type;

     if (g_getenv("PLOVER_IGNORE_SVG_SUPPORT"))

 	return FALSE;

     if (found_svg!=-1)

 	return found_svg;

     formats=gdk_pixbuf_get_formats();

     found_svg=FALSE;

     for (tmp_list=formats;tmp_list && !found_svg;tmp_list=tmp_list->next)

     {

 	mime_types=gdk_pixbuf_format_get_mime_types(tmp_list->data);

 	for (mime_type=mime_types;*mime_type && !found_svg;mime_type++)

 	    if (!strcmp(*mime_type,"image/svg"))

 		found_svg=TRUE;

 	g_strfreev(mime_types);

     }

     g_slist_free(formats);

     return found_svg;

 }

 static void plover_install_icon_at_size(const char *icon_name,

   GtkIconSet *icon_set,GtkIconSize size,const char *filename)

 {

     int w,h;

     GdkPixbuf *pixbuf;

     GtkSettings *settings;

     GtkIconSource *source;

     GError *err=NULL;

     settings=gtk_settings_get_default();

     if (!settings)

 	g_warning("plover: Can't add icons without a default screen");

     else if (gtk_icon_size_lookup_for_settings(settings,size,&w,&h))

     {

 	pixbuf=gdk_pixbuf_new_from_file_at_size(filename,w,h,&err);

 	if (pixbuf)

 	{

 	    source=gtk_icon_source_new();

 	    gtk_icon_source_set_size_wildcarded(source,FALSE);

 	    gtk_icon_source_set_size(source,size);

 	    gtk_icon_source_set_pixbuf(source,pixbuf);

 	    gtk_icon_set_add_source(icon_set,source);

 	    gtk_icon_source_free(source);

 	    g_object_unref(pixbuf);

 	}

 	else

 	{

 	    g_warning("%s: %s",filename,err->message);

 	    g_error_free(err);

 	}

     }

 }

 /**

  * plover_icons_add_to_stock:

  * @type: The icon type, typically "apps" or "mimetype"

  * @name: The icon name (the basename of files containing the icons)

  *

  * Find icons in <datadir>/icons/hicolor and add them to the stock images

  * so that, for example, gtk_image_new_from_stock() will be able find them.

  *

  * If there is an SVG loader registered with GdkPixbuf, then:

  * <datadir>/icons/hicolor/scalable/@type/@name.svg will be used. Otherwise,

  * <datadir>/icons/hicolor/24x24/@type/@name.png and

  * <datadir>/icons/hicolor/48x48/@type/@name.png will be used.

  */

 void plover_icons_add_to_stock(const char *type,const char *name)

 {

     gchar *datadir,*prefix,*s,*filename;

     GtkIconSource *source;

     GtkIconSet *icon_set;

     GtkIconFactory *factory;

     factory=gtk_icon_factory_new();

     icon_set=gtk_icon_set_new();

     datadir=g_strdup(g_getenv("PLOVER_ICONS_DATADIR"));

     if (!datadir)

     {

 #ifdef WIN32

 	prefix=g_win32_get_package_installation_directory_of_module(NULL);

 #else

 	prefix=NULL;

 #endif

 	if (!prefix)

 	    prefix=g_strdup("/usr");

 	datadir=g_strconcat(prefix,"share",NULL);

 	g_free(prefix);

     }

     if (plover_pixbuf_supports_svg())

     {

 	source=gtk_icon_source_new();

 	s=g_strconcat(name,".svg",NULL);

 	filename=g_build_filename(datadir,"icons/hicolor/scalable",type,s,NULL);

 	g_free(s);

 	gtk_icon_source_set_filename(source,filename);

 	g_free(filename);

 	gtk_icon_set_add_source(icon_set,source);

 	gtk_icon_source_free(source);

     }

     else

     {

 	s=g_strconcat(name,".png",NULL);

 	filename=g_build_filename(datadir,"icons/hicolor/24x24",type,s,NULL);

 	plover_install_icon_at_size(name,icon_set,GTK_ICON_SIZE_MENU,

 	  filename);

 	plover_install_icon_at_size(name,icon_set,GTK_ICON_SIZE_BUTTON,

 	  filename);

 	plover_install_icon_at_size(name,icon_set,GTK_ICON_SIZE_SMALL_TOOLBAR,

 	  filename);

 	plover_install_icon_at_size(name,icon_set,GTK_ICON_SIZE_LARGE_TOOLBAR,

 	  filename);

 	g_free(filename);

 	filename=g_build_filename(datadir,"icons/hicolor/48x48",type,s,NULL);

 	plover_install_icon_at_size(name,icon_set,GTK_ICON_SIZE_DND,

 	  filename);

 	plover_install_icon_at_size(name,icon_set,GTK_ICON_SIZE_DIALOG,

 	  filename);

 	g_free(filename);

 	g_free(s);

     }

     g_free(datadir);

     gtk_icon_factory_add(factory,name,icon_set);

     gtk_icon_set_unref(icon_set);

     //icon_set=gtk_icon_factory_lookup(factory,name);

     gtk_icon_factory_add_default(factory);

     g_object_unref(factory);

 }