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path: root/addressbook/gui/component/select-names/e-select-names-table-model.c
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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
 * Authors: 
 *   Chris Lahey     <clahey@ximian.com>
 *
 * Copyright (C) 2000 Ximian, Inc.
 */

#include <config.h>
#include <stdio.h>
#include <stdlib.h>
#include <string.h>

#include <gtk/gtksignal.h>
#include <gal/util/e-util.h>

#include "e-select-names-table-model.h"
#include "addressbook/backend/ebook/e-card-simple.h"

/* Object argument IDs */
enum {
    ARG_0,
    ARG_SOURCE,
};

static void e_select_names_table_model_init       (ESelectNamesTableModel *model);
static void e_select_names_table_model_class_init (ESelectNamesTableModelClass *klass);

static void e_select_names_table_model_destroy    (GtkObject *object);
static void e_select_names_table_model_set_arg    (GtkObject *object, GtkArg *arg, guint arg_id);
static void e_select_names_table_model_get_arg    (GtkObject *object, GtkArg *arg, guint arg_id);

static void e_select_names_table_model_model_changed (ESelectNamesModel *source,
                              ESelectNamesTableModel *model);


static void
e_select_names_table_model_add_source (ESelectNamesTableModel *model,
                       ESelectNamesModel     *source)
{
    model->source = source;
    if (model->source)
        gtk_object_ref(GTK_OBJECT(model->source));
    model->source_changed_id = gtk_signal_connect(GTK_OBJECT(model->source), "changed",
                              GTK_SIGNAL_FUNC(e_select_names_table_model_model_changed),
                              model);
}

static void
e_select_names_table_model_drop_source (ESelectNamesTableModel *model)
{
    if (model->source_changed_id)
        gtk_signal_disconnect(GTK_OBJECT(model->source), model->source_changed_id);
    if (model->source)
        gtk_object_unref(GTK_OBJECT(model->source));
    model->source = NULL;
    model->source_changed_id = 0;
}

/**
 * e_select_names_table_model_get_type:
 * @void: 
 * 
 * Registers the &ESelectNamesTableModel class if necessary, and returns the type ID
 * associated to it.
 * 
 * Return value: The type ID of the &ESelectNamesTableModel class.
 **/
GtkType
e_select_names_table_model_get_type (void)
{
    static GtkType model_type = 0;

    if (!model_type) {
        GtkTypeInfo model_info = {
            "ESelectNamesTableModel",
            sizeof (ESelectNamesTableModel),
            sizeof (ESelectNamesTableModelClass),
            (GtkClassInitFunc) e_select_names_table_model_class_init,
            (GtkObjectInitFunc) e_select_names_table_model_init,
            NULL, /* reserved_1 */
            NULL, /* reserved_2 */
            (GtkClassInitFunc) NULL
        };

        model_type = gtk_type_unique (e_table_model_get_type (), &model_info);
    }

    return model_type;
}

/**
 * e_select_names_table_model_new:
 * @VCard: a string in vCard format
 *
 * Returns: a new #ESelectNamesTableModel that wraps the @VCard.
 */
ETableModel *
e_select_names_table_model_new (ESelectNamesModel *source)
{
    ETableModel *model = E_TABLE_MODEL(gtk_type_new(e_select_names_table_model_get_type()));
    gtk_object_set(GTK_OBJECT(model),
               "source", source,
               NULL);
    return model;
}

static void
fill_in_info (ESelectNamesTableModel *model)
{
    if (model->source) {
        int count = e_select_names_model_count (model->source);
        gint i;

        model->count = count;
        model->data = g_new(ESelectNamesTableModelData, count);

        for (i = 0; i < count; ++i) {
            const EDestination *dest = e_select_names_model_get_destination (model->source, i);
            ECard *card = dest ? e_destination_get_card (dest) : NULL;

            if (card) {
                ECardSimple *simple = e_card_simple_new(card);
                model->data[i].name =  e_card_simple_get(simple, E_CARD_SIMPLE_FIELD_NAME_OR_ORG);
                if (model->data[i].name == 0)
                    model->data[i].name = g_strdup("");
                model->data[i].email = e_card_simple_get(simple, E_CARD_SIMPLE_FIELD_EMAIL);
                if (model->data[i].email == 0)
                    model->data[i].email = g_strdup("");
                gtk_object_unref(GTK_OBJECT(simple));
            } else {
                model->data[i].name =  g_strdup (e_destination_get_string (dest));
                model->data[i].email = g_strdup (model->data[i].name);
            }
        }
    } else {
        model->count = 0;
    }
}

static void
clear_info (ESelectNamesTableModel *model)
{
    int i;
    for (i = 0; i < model->count; i++) {
        g_free(model->data[i].name);
        g_free(model->data[i].email);
    }
    g_free(model->data);
    model->data = NULL;
    model->count = -1;
}

/*
 * ESelectNamesTableModel lifecycle management and vcard loading/saving.
 */

static void
e_select_names_table_model_destroy (GtkObject *object)
{
    ESelectNamesTableModel *model;
    
    model = E_SELECT_NAMES_TABLE_MODEL (object);

    e_select_names_table_model_drop_source (model);
    clear_info(model);
}

/* This function returns the number of columns in our ETableModel. */
static int
e_select_names_table_model_col_count (ETableModel *etc)
{
    return 2;
}

/* This function returns the number of rows in our ETableModel. */
static int
e_select_names_table_model_row_count (ETableModel *etc)
{
    ESelectNamesTableModel *e_select_names_table_model = E_SELECT_NAMES_TABLE_MODEL(etc);
    if (e_select_names_table_model->count == -1) {
        if (e_select_names_table_model->source) {
            fill_in_info(e_select_names_table_model);
        } else {
            return 0;
        }
    }
    return e_select_names_table_model->count;
}

/* This function returns the value at a particular point in our ETableModel. */
static void *
e_select_names_table_model_value_at (ETableModel *etc, int col, int row)
{
    ESelectNamesTableModel *e_select_names_table_model = E_SELECT_NAMES_TABLE_MODEL(etc);
    if (e_select_names_table_model->data == NULL) {
        fill_in_info(e_select_names_table_model);
    }
    switch (col) {
    case 0:
        if (e_select_names_table_model->data[row].name == NULL) {
            fill_in_info(e_select_names_table_model);
        }
        return e_select_names_table_model->data[row].name;
        break;
    case 1:
        if (e_select_names_table_model->data[row].email == NULL) {
            fill_in_info(e_select_names_table_model);
        }
        return e_select_names_table_model->data[row].email;
        break;
    }
    return "";
}

/* This function sets the value at a particular point in our ETableModel. */
static void
e_select_names_table_model_set_value_at (ETableModel *etc, int col, int row, const void *val)
{
}

/* This function returns whether a particular cell is editable. */
static gboolean
e_select_names_table_model_is_cell_editable (ETableModel *etc, int col, int row)
{
    return FALSE;
}

/* This function duplicates the value passed to it. */
static void *
e_select_names_table_model_duplicate_value (ETableModel *etc, int col, const void *value)
{
    return g_strdup(value);
}

/* This function frees the value passed to it. */
static void
e_select_names_table_model_free_value (ETableModel *etc, int col, void *value)
{
    g_free(value);
}

static void *
e_select_names_table_model_initialize_value (ETableModel *etc, int col)
{
    return g_strdup("");
}

static gboolean
e_select_names_table_model_value_is_empty (ETableModel *etc, int col, const void *value)
{
    return !(value && *(char *)value);
}

static char *
e_select_names_table_model_value_to_string (ETableModel *etc, int col, const void *value)
{
    return g_strdup(value);
}

static void
e_select_names_table_model_model_changed (ESelectNamesModel     *source,
                      ESelectNamesTableModel *model)
{
    clear_info(model);
    e_table_model_changed(E_TABLE_MODEL(model));
}

/* Set_arg handler for the model */
static void
e_select_names_table_model_set_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
    ESelectNamesTableModel *model;
    
    model = E_SELECT_NAMES_TABLE_MODEL (object);

    switch (arg_id) {
    case ARG_SOURCE:
        e_select_names_table_model_drop_source (model);
        e_select_names_table_model_add_source (model, E_SELECT_NAMES_MODEL(GTK_VALUE_OBJECT (*arg)));
        break;
    default:
        return;
    }
}

/* Get_arg handler for the model */
static void
e_select_names_table_model_get_arg (GtkObject *object, GtkArg *arg, guint arg_id)
{
    ESelectNamesTableModel *model;

    model = E_SELECT_NAMES_TABLE_MODEL (object);

    switch (arg_id) {
    case ARG_SOURCE:
        GTK_VALUE_OBJECT(*arg) = GTK_OBJECT(model->source);
        break;
    default:
        arg->type = GTK_TYPE_INVALID;
        break;
    }
}

/**
 * e_select_names_table_model_init:
 */
static void
e_select_names_table_model_init (ESelectNamesTableModel *model)
{
    model->source = NULL;
    model->source_changed_id = 0;

    model->count = -1;
    model->data = NULL;
}

static void
e_select_names_table_model_class_init (ESelectNamesTableModelClass *klass)
{
    GtkObjectClass *object_class;
    ETableModelClass *table_model_class;

    object_class = GTK_OBJECT_CLASS(klass);
    table_model_class = E_TABLE_MODEL_CLASS(klass);

    gtk_object_add_arg_type ("ESelectNamesTableModel::source",
                 GTK_TYPE_OBJECT, GTK_ARG_READWRITE, ARG_SOURCE);

    object_class->destroy = e_select_names_table_model_destroy;
    object_class->get_arg = e_select_names_table_model_get_arg;
    object_class->set_arg = e_select_names_table_model_set_arg;

    table_model_class->column_count = e_select_names_table_model_col_count;
    table_model_class->row_count = e_select_names_table_model_row_count;
    table_model_class->value_at = e_select_names_table_model_value_at;
    table_model_class->set_value_at = e_select_names_table_model_set_value_at;
    table_model_class->is_cell_editable = e_select_names_table_model_is_cell_editable;
    table_model_class->duplicate_value = e_select_names_table_model_duplicate_value;
    table_model_class->free_value = e_select_names_table_model_free_value;
    table_model_class->initialize_value = e_select_names_table_model_initialize_value;
    table_model_class->value_is_empty = e_select_names_table_model_value_is_empty;
    table_model_class->value_to_string = e_select_names_table_model_value_to_string;
}