source: trunk/third/evolution/e-util/e-categories-config.c @ 19030

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Categories configuration.
 *
 * Author:
 *   Rodrigo Moya <rodrigo@ximian.com>
 *
 * Copyright 2001, Ximian, Inc.
 */

#ifdef HAVE_CONFIG_H
#include <config.h>
#endif

#include <string.h>
#include <libgnomeui/gnome-dialog.h>
#include <libgnome/gnome-i18n.h>
#include <gdk-pixbuf/gdk-pixbuf.h>
#include <gal/widgets/e-unicode.h>
#include <gal/widgets/e-categories.h>
#include "e-categories-config.h"
#include "e-categories-master-list-wombat.h"

static gboolean initialized = FALSE;
static ECategoriesMasterListWombat *ecmlw = NULL;
static GHashTable *icons_table = NULL;

static void
initialize_categories_config (void)
{
        g_return_if_fail (initialized == FALSE);

        ecmlw = E_CATEGORIES_MASTER_LIST_WOMBAT (e_categories_master_list_wombat_new ());
        icons_table = g_hash_table_new (g_str_hash, g_str_equal);
        /* FIXME: must free the two objects above when exiting */

        initialized = TRUE;
}

/**
 * e_categories_config_get_color_for:
 * @category: Category to get the color for.
 *
 * Returns the representation of the color configured for the given
 * category
 *
 * Returns: An X color specification.
 */
const char *
e_categories_config_get_color_for (const char *category)
{
        int n;

        g_return_val_if_fail (category != NULL, NULL);

        if (!initialized)
                initialize_categories_config ();

        for (n = 0;
             n < e_categories_master_list_count (E_CATEGORIES_MASTER_LIST (ecmlw));
             n++) {
                char *tmp_cat;

                tmp_cat = (char *) e_categories_master_list_nth (E_CATEGORIES_MASTER_LIST (ecmlw), n);
                if (tmp_cat && !strcmp (tmp_cat, category))
                        return e_categories_master_list_nth_color (E_CATEGORIES_MASTER_LIST (ecmlw), n);
        }

        return NULL; /* not found */
}

/**
 * e_categories_config_set_color_for
 */
void
e_categories_config_set_color_for (const char *category, const char *color)
{
        /* FIXME: implement */
}

/**
 * e_categories_config_get_icon_for:
 * @category: Category for which to get the icon.
 * @icon: A pointer to where the pixmap will be returned.
 * @mask: A pointer to where the mask will be returned.
 *
 * Returns the icon (and associated mask) configured for the
 * given category.
 */
gboolean
e_categories_config_get_icon_for (const char *category, GdkPixmap **pixmap, GdkBitmap **mask)
{
        char *icon_file;
        GdkPixbuf *pixbuf;
        GdkBitmap *tmp_mask;

        g_return_val_if_fail (pixmap != NULL, FALSE);

        icon_file = (char *) e_categories_config_get_icon_file_for (category);
        if (!icon_file) {
                *pixmap = NULL;
                if (mask != NULL)
                        *mask = NULL;
                return FALSE;
        }

        /* load the icon in our list */
        pixbuf = g_hash_table_lookup (icons_table, icon_file);
        if (!pixbuf) {
                pixbuf = gdk_pixbuf_new_from_file (icon_file);
                if (!pixbuf) {
                        *pixmap = NULL;
                        if (mask != NULL)
                                *mask = NULL;
                        return FALSE;
                }

                g_hash_table_insert (icons_table, g_strdup (icon_file), pixbuf);
        }

        /* render the pixbuf to the pixmap and mask passed */
        gdk_pixbuf_render_pixmap_and_mask (pixbuf, pixmap, &tmp_mask, 1);
        if (mask != NULL)
                *mask = tmp_mask;

        return TRUE;
}

/**
 * e_categories_config_get_icon_file_for
 * @category: Category for which to get the icon file
 */
const char *
e_categories_config_get_icon_file_for (const char *category)
{
        int n;

        g_return_val_if_fail (category != NULL, NULL);

        if (!initialized)
                initialize_categories_config ();

        for (n = 0;
             n < e_categories_master_list_count (E_CATEGORIES_MASTER_LIST (ecmlw));
             n++) {
                char *tmp_cat;

                tmp_cat = (char *) e_categories_master_list_nth (E_CATEGORIES_MASTER_LIST (ecmlw), n);
                if (tmp_cat && !strcmp (tmp_cat, category))
                        return e_categories_master_list_nth_icon (E_CATEGORIES_MASTER_LIST (ecmlw), n);
        }

        return NULL; /* not found */
}

/**
 * e_categories_config_set_icon_for
 * @category: Category for which to set the icon.
 * @icon_file: Full path of the icon file.
 */
void
e_categories_config_set_icon_for (const char *category, const char *icon_file)
{
}

/**
 * e_categories_config_open_dialog_for_entry:
 * entry: A GtkEntry on which to get/set the categories list.
 *
 * This is a self-contained function that lets you open a popup dialog for
 * the user to select a list of categories.
 *
 * The @entry parameter is used, at initialization time, as the list of
 * initial categories that are selected in the categories selection dialog.
 * Then, when the user commits its changes, the list of selected categories
 * is put back on the entry widget.
 */
void
e_categories_config_open_dialog_for_entry (GtkEntry *entry)
{
        char *categories;
        GnomeDialog *dialog;
        int result;

        g_return_if_fail (entry != NULL);
        g_return_if_fail (GTK_IS_ENTRY (entry));

        if (!initialized)
                initialize_categories_config ();

        categories = e_utf8_gtk_entry_get_text (GTK_ENTRY (entry));
        dialog = GNOME_DIALOG (e_categories_new (categories));

        gtk_object_set (GTK_OBJECT (dialog),
                        "ecml", ecmlw,
                        NULL);

        /* run the dialog */
        result = gnome_dialog_run (dialog);
        g_free (categories);

        if (result == 0) {
                gtk_object_get (GTK_OBJECT (dialog),
                                "categories", &categories,
                                NULL);
                e_utf8_gtk_entry_set_text (GTK_ENTRY (entry), categories);
                g_free (categories);
        }

        gtk_object_destroy (GTK_OBJECT (dialog));
}