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camorama-filter-chain.c

/* This file is part of camorama
 *
 * AUTHORS
 *     Sven Herzberg  <herzi@gnome-de.org>
 *
 * Copyright (C) 2006  Sven Herzberg <herzi@gnome-de.org>
 *
 * 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307
 * USA
 */

#include "camorama-filter-chain.h"

#include "filter.h"

struct CamoramaImage {
      guchar* buf;
      gint    width;
      gint    height;
      gint    depth;
};

CamoramaFilterChain*
camorama_filter_chain_new(void) {
      return g_object_new(CAMORAMA_TYPE_FILTER_CHAIN, NULL);
}

void
camorama_filter_chain_append(CamoramaFilterChain* self, GType filter_type) {
      GtkTreeIter iter;
      GtkListStore* store;
      CamoramaFilter* filter;
      g_return_if_fail(g_type_is_a(filter_type, CAMORAMA_TYPE_FILTER));

      store = GTK_LIST_STORE(self);
      gtk_list_store_append(store, &iter);
      filter = g_object_new(filter_type, NULL);
      gtk_list_store_set(store, &iter,
                     CAMORAMA_FILTER_CHAIN_COL_FILTER, filter,
                     CAMORAMA_FILTER_CHAIN_COL_NAME, camorama_filter_get_name(filter),
                     -1);
      g_object_unref(filter);
}

static gboolean
camorama_filter_chain_apply_filter(GtkTreeModel* model, GtkTreePath* path, GtkTreeIter* iter, gpointer user_data) {
      struct CamoramaImage* img = user_data;
      CamoramaFilter* filter = NULL;
      gtk_tree_model_get(model, iter,
                     CAMORAMA_FILTER_CHAIN_COL_FILTER, &filter,
                     -1);
      camorama_filter_apply(filter, img->buf, img->width, img->height, img->depth);

      return FALSE;
}

void
camorama_filter_chain_apply(CamoramaFilterChain* self, guchar* image, gint width, gint height, gint depth) {
      struct CamoramaImage img = {image, width, height, depth};
      
      gtk_tree_model_foreach(GTK_TREE_MODEL(self), camorama_filter_chain_apply_filter, &img);
}

/* GType stuff */
G_DEFINE_TYPE(CamoramaFilterChain, camorama_filter_chain, GTK_TYPE_LIST_STORE);

static void
camorama_filter_chain_init(CamoramaFilterChain* self) {
      GType column_types[CAMORAMA_FILTER_CHAIN_N_COLUMNS];
      column_types[CAMORAMA_FILTER_CHAIN_COL_NAME] = G_TYPE_STRING;
      column_types[CAMORAMA_FILTER_CHAIN_COL_FILTER] = G_TYPE_OBJECT;
      gtk_list_store_set_column_types(GTK_LIST_STORE(self), CAMORAMA_FILTER_CHAIN_N_COLUMNS, column_types);
}

static void
camorama_filter_chain_class_init(CamoramaFilterChainClass* self) {}


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