/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/*
* e-table-selection-model.c
* Copyright 2000, 2001, Ximian, Inc.
*
* Authors:
* Chris Lahey <clahey@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 "e-table-selection-model.h"
#include <string.h>
#include <gdk/gdkkeysyms.h>
#include <gtk/gtksignal.h>
#include "gal/util/e-util.h"
#define ETSM_CLASS(e) ((ETableSelectionModelClass *)((GtkObject *)e)->klass)
#define PARENT_TYPE e_selection_model_array_get_type ()
static ESelectionModelArray *parent_class;
static gint etsm_get_row_count (ESelectionModelArray *esm);
enum {
ARG_0,
ARG_MODEL,
ARG_HEADER
};
static void
save_to_hash(int model_row, gpointer closure)
{
ETableSelectionModel *etsm = closure;
gchar *key = e_table_model_get_save_id(etsm->model, model_row);
g_hash_table_insert(etsm->hash, key, key);
}
static void
free_key(gpointer key, gpointer value, gpointer closure)
{
g_free(key);
}
static void
free_hash(ETableSelectionModel *etsm)
{
if (etsm->hash) {
g_hash_table_foreach(etsm->hash, free_key, NULL);
g_hash_table_destroy(etsm->hash);
etsm->hash = NULL;
}
g_free(etsm->cursor_id);
etsm->cursor_id = NULL;
}
static void
model_pre_change (ETableModel *etm, ETableSelectionModel *etsm)
{
free_hash(etsm);
if (etsm->model && e_table_model_has_save_id (etsm->model)) {
gint cursor_row;
etsm->hash = g_hash_table_new(g_str_hash, g_str_equal);
e_selection_model_foreach(E_SELECTION_MODEL(etsm), save_to_hash, etsm);
gtk_object_get(GTK_OBJECT(etsm),
"cursor_row", &cursor_row,
NULL);
g_free (etsm->cursor_id);
if (cursor_row != -1)
etsm->cursor_id = e_table_model_get_save_id(etm, cursor_row);
else
etsm->cursor_id = NULL;
}
}
static gint
model_changed_idle(ETableSelectionModel *etsm)
{
ETableModel *etm = etsm->model;
e_selection_model_clear(E_SELECTION_MODEL(etsm));
if (etsm->cursor_id && etm && e_table_model_has_save_id(etm)) {
int row_count = e_table_model_row_count(etm);
int cursor_row = -1;
int cursor_col = -1;
int i;
e_selection_model_array_confirm_row_count(E_SELECTION_MODEL_ARRAY(etsm));
for (i = 0; i < row_count; i++) {
char *save_id = e_table_model_get_save_id(etm, i);
if (g_hash_table_lookup(etsm->hash, save_id))
e_selection_model_change_one_row(E_SELECTION_MODEL(etsm), i, TRUE);
if (etsm->cursor_id && !strcmp(etsm->cursor_id, save_id)) {
cursor_row = i;
cursor_col = e_selection_model_cursor_col(E_SELECTION_MODEL(etsm));
if (cursor_col == -1) {
if (etsm->eth) {
cursor_col = e_table_header_prioritized_column (etsm->eth);
} else
cursor_col = 0;
}
e_selection_model_change_cursor(E_SELECTION_MODEL(etsm), cursor_row, cursor_col);
g_free(etsm->cursor_id);
etsm->cursor_id = NULL;
}
g_free(save_id);
}
free_hash(etsm);
e_selection_model_cursor_changed (E_SELECTION_MODEL(etsm), cursor_row, cursor_col);
e_selection_model_selection_changed (E_SELECTION_MODEL(etsm));
}
etsm->model_changed_idle_id = 0;
return FALSE;
}
static void
model_changed(ETableModel *etm, ETableSelectionModel *etsm)
{
e_selection_model_clear(E_SELECTION_MODEL(etsm));
if (!etsm->model_changed_idle_id && etm && e_table_model_has_save_id(etm)) {
etsm->model_changed_idle_id = g_idle_add_full(G_PRIORITY_HIGH, (GSourceFunc) model_changed_idle, etsm, NULL);
}
}
static void
model_row_changed(ETableModel *etm, int row, ETableSelectionModel *etsm)
{
free_hash(etsm);
}
static void
model_cell_changed(ETableModel *etm, int col, int row, ETableSelectionModel *etsm)
{
free_hash(etsm);
}
#if 1
static void
model_rows_inserted(ETableModel *etm, int row, int count, ETableSelectionModel *etsm)
{
e_selection_model_array_insert_rows(E_SELECTION_MODEL_ARRAY(etsm), row, count);
free_hash(etsm);
}
static void
model_rows_deleted(ETableModel *etm, int row, int count, ETableSelectionModel *etsm)
{
e_selection_model_array_delete_rows(E_SELECTION_MODEL_ARRAY(etsm), row, count);
free_hash(etsm);
}
#else
static void
model_rows_inserted(ETableModel *etm, int row, int count, ETableSelectionModel *etsm)
{
model_changed(etm, etsm);
}
static void
model_rows_deleted(ETableModel *etm, int row, int count, ETableSelectionModel *etsm)
{
model_changed(etm, etsm);
}
#endif
inline static void
add_model(ETableSelectionModel *etsm, ETableModel *model)
{
etsm->model = model;
if (model) {
gtk_object_ref(GTK_OBJECT(model));
etsm->model_pre_change_id = gtk_signal_connect(GTK_OBJECT(model), "model_pre_change",
GTK_SIGNAL_FUNC(model_pre_change), etsm);
etsm->model_changed_id = gtk_signal_connect(GTK_OBJECT(model), "model_changed",
GTK_SIGNAL_FUNC(model_changed), etsm);
etsm->model_row_changed_id = gtk_signal_connect(GTK_OBJECT(model), "model_row_changed",
GTK_SIGNAL_FUNC(model_row_changed), etsm);
etsm->model_cell_changed_id = gtk_signal_connect(GTK_OBJECT(model), "model_cell_changed",
GTK_SIGNAL_FUNC(model_cell_changed), etsm);
etsm->model_rows_inserted_id = gtk_signal_connect(GTK_OBJECT(model), "model_rows_inserted",
GTK_SIGNAL_FUNC(model_rows_inserted), etsm);
etsm->model_rows_deleted_id = gtk_signal_connect(GTK_OBJECT(model), "model_rows_deleted",
GTK_SIGNAL_FUNC(model_rows_deleted), etsm);
}
e_selection_model_array_confirm_row_count(E_SELECTION_MODEL_ARRAY(etsm));
}
inline static void
drop_model(ETableSelectionModel *etsm)
{
if (etsm->model) {
gtk_signal_disconnect(GTK_OBJECT(etsm->model),
etsm->model_pre_change_id);
gtk_signal_disconnect(GTK_OBJECT(etsm->model),
etsm->model_changed_id);
gtk_signal_disconnect(GTK_OBJECT(etsm->model),
etsm->model_row_changed_id);
gtk_signal_disconnect(GTK_OBJECT(etsm->model),
etsm->model_cell_changed_id);
gtk_signal_disconnect(GTK_OBJECT(etsm->model),
etsm->model_rows_inserted_id);
gtk_signal_disconnect(GTK_OBJECT(etsm->model),
etsm->model_rows_deleted_id);
gtk_object_unref(GTK_OBJECT(etsm->model));
}
etsm->model = NULL;
}
static void
etsm_destroy (GtkObject *object)
{
ETableSelectionModel *etsm;
etsm = E_TABLE_SELECTION_MODEL (object);
if (etsm->model_changed_idle_id) {
g_source_remove(etsm->model_changed_idle_id);
}
drop_model(etsm);
free_hash(etsm);
if (GTK_OBJECT_CLASS(parent_class)->destroy)
GTK_OBJECT_CLASS(parent_class)->destroy (object);
}
static void
etsm_get_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
ETableSelectionModel *etsm = E_TABLE_SELECTION_MODEL (o);
switch (arg_id){
case ARG_MODEL:
GTK_VALUE_OBJECT (*arg) = GTK_OBJECT(etsm->model);
break;
case ARG_HEADER:
GTK_VALUE_OBJECT (*arg) = (GtkObject *)etsm->eth;
break;
}
}
static void
etsm_set_arg (GtkObject *o, GtkArg *arg, guint arg_id)
{
ETableSelectionModel *etsm = E_TABLE_SELECTION_MODEL (o);
switch (arg_id){
case ARG_MODEL:
drop_model(etsm);
add_model(etsm, GTK_VALUE_OBJECT (*arg) ? E_TABLE_MODEL(GTK_VALUE_OBJECT (*arg)) : NULL);
break;
case ARG_HEADER:
etsm->eth = (ETableHeader *)GTK_VALUE_OBJECT (*arg);
break;
}
}
static void
e_table_selection_model_init (ETableSelectionModel *selection)
{
selection->model = NULL;
selection->hash = NULL;
selection->cursor_id = NULL;
selection->model_changed_idle_id = 0;
}
static void
e_table_selection_model_class_init (ETableSelectionModelClass *klass)
{
GtkObjectClass *object_class;
ESelectionModelArrayClass *esma_class;
parent_class = gtk_type_class (PARENT_TYPE);
object_class = GTK_OBJECT_CLASS(klass);
esma_class = E_SELECTION_MODEL_ARRAY_CLASS(klass);
object_class->destroy = etsm_destroy;
object_class->get_arg = etsm_get_arg;
object_class->set_arg = etsm_set_arg;
esma_class->get_row_count = etsm_get_row_count;
gtk_object_add_arg_type ("ETableSelectionModel::model", GTK_TYPE_OBJECT,
GTK_ARG_READWRITE, ARG_MODEL);
gtk_object_add_arg_type ("ETableSelectionModel::header", E_TABLE_HEADER_TYPE,
GTK_ARG_READWRITE, ARG_HEADER);
}
E_MAKE_TYPE(e_table_selection_model, "ETableSelectionModel", ETableSelectionModel,
e_table_selection_model_class_init, e_table_selection_model_init, PARENT_TYPE)
/**
* e_table_selection_model_new
*
* This routine creates a new #ETableSelectionModel.
*
* Returns: The new #ETableSelectionModel.
*/
ETableSelectionModel *
e_table_selection_model_new (void)
{
return gtk_type_new (e_table_selection_model_get_type ());
}
static gint
etsm_get_row_count (ESelectionModelArray *esma)
{
ETableSelectionModel *etsm = E_TABLE_SELECTION_MODEL(esma);
if (etsm->model)
return e_table_model_row_count (etsm->model);
else
return 0;
}
