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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* e-table-sort-info.c: a Table Model
*
* Author:
* Miguel de Icaza (miguel@gnu.org)
*
* (C) 1999 Helix Code, Inc.
*/
#include <config.h>
#include <gtk/gtksignal.h>
#include "e-table-sort-info.h"
#include "e-util/e-util.h"
#define ETM_CLASS(e) ((ETableSortInfoClass *)((GtkObject *)e)->klass)
#define PARENT_TYPE gtk_object_get_type ()
static GtkObjectClass *e_table_sort_info_parent_class;
enum {
SORT_INFO_CHANGED,
GROUP_INFO_CHANGED,
LAST_SIGNAL
};
static guint e_table_sort_info_signals [LAST_SIGNAL] = { 0, };
static void
etsi_destroy (GtkObject *object)
{
ETableSortInfo *etsi;
etsi = E_TABLE_SORT_INFO (object);
if (etsi->groupings)
g_free(etsi->groupings);
if (etsi->sortings)
g_free(etsi->sortings);
}
static void
e_table_sort_info_init (ETableSortInfo *info)
{
info->group_count = 0;
info->groupings = NULL;
info->sort_count = 0;
info->sortings = NULL;
info->frozen = 0;
info->sort_info_changed = 0;
info->group_info_changed = 0;
}
static void
e_table_sort_info_class_init (ETableSortInfoClass *klass)
{
GtkObjectClass *object_class;
e_table_sort_info_parent_class = gtk_type_class (gtk_object_get_type ());
object_class = GTK_OBJECT_CLASS(klass);
object_class->destroy = etsi_destroy;
e_table_sort_info_signals [SORT_INFO_CHANGED] =
gtk_signal_new ("sort_info_changed",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableSortInfoClass, sort_info_changed),
gtk_marshal_NONE__NONE,
GTK_TYPE_NONE, 0);
e_table_sort_info_signals [GROUP_INFO_CHANGED] =
gtk_signal_new ("group_info_changed",
GTK_RUN_LAST,
object_class->type,
GTK_SIGNAL_OFFSET (ETableSortInfoClass, group_info_changed),
gtk_marshal_NONE__NONE,
GTK_TYPE_NONE, 0);
klass->sort_info_changed = NULL;
klass->group_info_changed = NULL;
gtk_object_class_add_signals (object_class, e_table_sort_info_signals, LAST_SIGNAL);
}
E_MAKE_TYPE(e_table_sort_info, "ETableSortInfo", ETableSortInfo,
e_table_sort_info_class_init, e_table_sort_info_init, PARENT_TYPE);
static void
e_table_sort_info_sort_info_changed (ETableSortInfo *info)
{
g_return_if_fail (info != NULL);
g_return_if_fail (E_IS_TABLE_SORT_INFO (info));
if (info->frozen) {
info->sort_info_changed = 1;
} else {
gtk_signal_emit (GTK_OBJECT (info),
e_table_sort_info_signals [SORT_INFO_CHANGED]);
}
}
static void
e_table_sort_info_group_info_changed (ETableSortInfo *info)
{
g_return_if_fail (info != NULL);
g_return_if_fail (E_IS_TABLE_SORT_INFO (info));
if (info->frozen) {
info->group_info_changed = 1;
} else {
gtk_signal_emit (GTK_OBJECT (info),
e_table_sort_info_signals [GROUP_INFO_CHANGED]);
}
}
void
e_table_sort_info_freeze (ETableSortInfo *info)
{
info->frozen = 1;
}
void
e_table_sort_info_thaw (ETableSortInfo *info)
{
info->frozen = 0;
if (info->sort_info_changed) {
info->sort_info_changed = 0;
e_table_sort_info_sort_info_changed(info);
}
if (info->group_info_changed) {
info->group_info_changed = 0;
e_table_sort_info_group_info_changed(info);
}
}
guint
e_table_sort_info_grouping_get_count (ETableSortInfo *info)
{
return info->group_count;
}
static void
e_table_sort_info_grouping_real_truncate (ETableSortInfo *info, int length)
{
if (length < info->group_count) {
info->group_count = length;
}
if (length > info->group_count) {
info->groupings = g_realloc(info->groupings, length * sizeof(ETableSortColumn));
info->group_count = length;
}
}
void
e_table_sort_info_grouping_truncate (ETableSortInfo *info, int length)
{
e_table_sort_info_grouping_real_truncate(info, length);
e_table_sort_info_group_info_changed(info);
}
ETableSortColumn
e_table_sort_info_grouping_get_nth (ETableSortInfo *info, int n)
{
if (n < info->group_count) {
return info->groupings[n];
} else {
ETableSortColumn fake = {0, 0};
return fake;
}
}
void
e_table_sort_info_grouping_set_nth (ETableSortInfo *info, int n, ETableSortColumn column)
{
if (n >= info->group_count) {
e_table_sort_info_grouping_real_truncate(info, n + 1);
}
info->groupings[n] = column;
e_table_sort_info_group_info_changed(info);
}
guint
e_table_sort_info_sorting_get_count (ETableSortInfo *info)
{
return info->sort_count;
}
static void
e_table_sort_info_sorting_real_truncate (ETableSortInfo *info, int length)
{
if (length < info->sort_count) {
info->sort_count = length;
}
if (length > info->sort_count) {
info->sortings = g_realloc(info->sortings, length * sizeof(ETableSortColumn));
info->sort_count = length;
}
}
void
e_table_sort_info_sorting_truncate (ETableSortInfo *info, int length)
{
e_table_sort_info_sorting_real_truncate (info, length);
e_table_sort_info_sort_info_changed(info);
}
ETableSortColumn
e_table_sort_info_sorting_get_nth (ETableSortInfo *info, int n)
{
if (n < info->sort_count) {
return info->sortings[n];
} else {
ETableSortColumn fake = {0, 0};
return fake;
}
}
void
e_table_sort_info_sorting_set_nth (ETableSortInfo *info, int n, ETableSortColumn column)
{
if (n >= info->sort_count) {
e_table_sort_info_sorting_real_truncate(info, n + 1);
}
info->sortings[n] = column;
e_table_sort_info_sort_info_changed(info);
}
ETableSortInfo *
e_table_sort_info_new (void)
{
return gtk_type_new (e_table_sort_info_get_type ());
}
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