path: root/widgets/text/e-completion-match.c

/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* 
 * e-completion-match.c
 * Copyright 2000, 2001, Ximian, Inc.
 *
 * Authors:
 *   Jon Trowbridge <trow@ximian.com>
 *
 * This library is free software; you can redistribute it and/or
 * modify it under the terms of the GNU Library General Public
 * License, version 2, as published by the Free Software Foundation.
 *
 * This library 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
 * Library General Public License for more details.
 *
 * You should have received a copy of the GNU Library General Public
 * License along with this library; if not, write to the Free Software
 * Foundation, Inc., 59 Temple Place - Suite 330, Boston, MA
 * 02111-1307, USA.
 */

#include <config.h>
#include <string.h>
#include <gal/unicode/gunicode.h>
#include <gal/widgets/e-unicode.h>
#include "e-completion-match.h"

static void
e_completion_match_destroy (ECompletionMatch *match)
{
    if (match) {
        g_free (match->match_text);
        g_free (match->menu_text);
        if (match->destroy)
            match->destroy (match);
        g_free (match);
    }
}

void
e_completion_match_construct (ECompletionMatch *match)
{
    g_return_if_fail (match != NULL);
    
    match->match_text = NULL;
    match->menu_text  = NULL;
    match->score      = 0;
    match->sort_major = 0;
    match->sort_minor = 0;
    match->user_data  = NULL;
    match->ref        = 1;
    match->hit_count  = 0;
    match->destroy    = NULL;
}

void
e_completion_match_ref (ECompletionMatch *match)
{
    g_return_if_fail (match != NULL);
    g_return_if_fail (match->ref > 0);

    ++match->ref;
}

void
e_completion_match_unref (ECompletionMatch *match)
{
    if (match) {
        g_return_if_fail (match->ref > 0);

        --match->ref;
        if (match->ref == 0) {
            e_completion_match_destroy (match);
        }
    }
}

void
e_completion_match_set_text (ECompletionMatch *match,
                 const gchar *match_text,
                 const gchar *menu_text)
{
    gchar *to_be_freed_match_text;
    gchar *to_be_freed_menu_text;

    g_return_if_fail (match != NULL);

    to_be_freed_match_text = match->match_text;
    to_be_freed_menu_text  = match->menu_text;

    if (match_text == NULL) {
        match_text = "Unknown_Match";
    } else if (! g_utf8_validate (match_text, -1, NULL)) {
        match_text = "Invalid_UTF8";
    }

    if (menu_text == NULL) {
        menu_text = match_text;
    } else if (! g_utf8_validate (menu_text, -1, NULL)) {
        menu_text = "Invalid_UTF8";
    }

    match->match_text = g_strdup (match_text);
    match->menu_text  = g_strdup (menu_text);

    g_free (to_be_freed_match_text);
    g_free (to_be_freed_menu_text);
}

const gchar *
e_completion_match_get_match_text (ECompletionMatch *match)
{
    return match ? match->match_text : "NULL_Match";
}

const gchar *
e_completion_match_get_menu_text (ECompletionMatch *match)
{
    return match ? match->menu_text : "NULL_Match";
}

gint
e_completion_match_compare (const ECompletionMatch *a, const ECompletionMatch *b)
{
    gint rv;

    /* Deal with NULL arguments. */
    if (!(a || b)) {
        if (!(a && b))
            return 0;
        return a ? -1 : 1;
    }

    if ( (rv = (b->sort_major < a->sort_major) - (a->sort_major < b->sort_major)) )
        return rv;

    /* Sort the scores high->low. */
    if ( (rv = (b->score > a->score) - (a->score > b->score)) )
        return rv;

    if ( (rv = (b->sort_minor < a->sort_minor) - (a->sort_minor < b->sort_minor)) )
        return rv;

    return 0;
}

gint
e_completion_match_compare_alpha (const ECompletionMatch *a, const ECompletionMatch *b)
{
    gint rv, rv2;

    /* Deal with NULL arguments. */
    if (!(a || b)) {
        if (!(a && b))
            return 0;
        return a ? -1 : 1;
    }

    /* The sort_major trumps everything. */
    if ( (rv = (b->sort_major < a->sort_major) - (a->sort_major < b->sort_major)) )
        return rv;

    /* Sort the scores high->low. */
    if ( (rv = (b->score > a->score) - (a->score > b->score)) )
        return rv;

    /* When the match text is the same, we use the minor fields */
    rv2 = strcmp (a->match_text, b->match_text);
    if ( !rv2 && (rv = (b->sort_minor < a->sort_minor) - (a->sort_minor < b->sort_minor)) )
        return rv;

    return strcmp (a->menu_text, b->menu_text);
}

ECompletionMatch *
e_completion_match_new (const gchar *match_text, const gchar *menu_text, double score)
{
    ECompletionMatch *match = g_new0 (ECompletionMatch, 1);

    e_completion_match_construct (match);
    e_completion_match_set_text (match, match_text, menu_text);
    match->score = score;

    return match;
}