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/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
/* ETableTextModel - Text item model for evolution.
* Copyright (C) 2000 Helix Code, Inc.
*
* Author: Chris Lahey <clahey@umich.edu>
*
* A majority of code taken from:
*
* Text item type for GnomeCanvas widget
*
* GnomeCanvas is basically a port of the Tk toolkit's most excellent
* canvas widget. Tk is copyrighted by the Regents of the University
* of California, Sun Microsystems, and other parties.
*
* Copyright (C) 1998 The Free Software Foundation
*
* Author: Federico Mena <federico@nuclecu.unam.mx> */
#include <config.h>
#include <ctype.h>
#include "e-table-text-model.h"
static void e_table_text_model_class_init (ETableTextModelClass *class);
static void e_table_text_model_init (ETableTextModel *model);
static void e_table_text_model_destroy (GtkObject *object);
static gchar *e_table_text_model_get_text(ETextModel *model);
static void e_table_text_model_set_text(ETextModel *model, gchar *text);
static void e_table_text_model_insert(ETextModel *model, gint postion, gchar *text);
static void e_table_text_model_insert_length(ETextModel *model, gint postion, gchar *text, gint length);
static void e_table_text_model_delete(ETextModel *model, gint postion, gint length);
static GtkObject *parent_class;
/**
* e_table_text_model_get_type:
* @void:
*
* Registers the &ETableTextModel class if necessary, and returns the type ID
* associated to it.
*
* Return value: The type ID of the &ETableTextModel class.
**/
GtkType
e_table_text_model_get_type (void)
{
static GtkType model_type = 0;
if (!model_type) {
GtkTypeInfo model_info = {
"ETableTextModel",
sizeof (ETableTextModel),
sizeof (ETableTextModelClass),
(GtkClassInitFunc) e_table_text_model_class_init,
(GtkObjectInitFunc) e_table_text_model_init,
NULL, /* reserved_1 */
NULL, /* reserved_2 */
(GtkClassInitFunc) NULL
};
model_type = gtk_type_unique (e_text_model_get_type (), &model_info);
}
return model_type;
}
/* Class initialization function for the text item */
static void
e_table_text_model_class_init (ETableTextModelClass *klass)
{
GtkObjectClass *object_class;
ETextModelClass *model_class;
object_class = (GtkObjectClass *) klass;
model_class = (ETextModelClass *) klass;
parent_class = gtk_type_class (e_text_model_get_type ());
model_class->get_text = e_table_text_model_get_text;
model_class->set_text = e_table_text_model_set_text;
model_class->insert = e_table_text_model_insert;
model_class->insert_length = e_table_text_model_insert_length;
model_class->delete = e_table_text_model_delete;
object_class->destroy = e_table_text_model_destroy;
}
/* Object initialization function for the text item */
static void
e_table_text_model_init (ETableTextModel *model)
{
model->model = NULL;
model->row = 0;
model->model_col = 0;
model->cell_changed_signal_id = 0;
model->row_changed_signal_id = 0;
}
/* Destroy handler for the text item */
static void
e_table_text_model_destroy (GtkObject *object)
{
ETableTextModel *model;
g_return_if_fail (object != NULL);
g_return_if_fail (E_IS_TABLE_TEXT_MODEL (object));
model = E_TABLE_TEXT_MODEL (object);
g_assert (!model->model || GTK_IS_OBJECT (model->model));
if (model->cell_changed_signal_id)
gtk_signal_disconnect(GTK_OBJECT(model->model),
model->cell_changed_signal_id);
if (model->row_changed_signal_id)
gtk_signal_disconnect(GTK_OBJECT(model->model),
model->row_changed_signal_id);
if (model->model)
gtk_object_unref(GTK_OBJECT(model->model));
if (GTK_OBJECT_CLASS (parent_class)->destroy)
(* GTK_OBJECT_CLASS (parent_class)->destroy) (object);
}
static gchar *
e_table_text_model_get_text(ETextModel *text_model)
{
ETableTextModel *model = E_TABLE_TEXT_MODEL(text_model);
if ( model->model )
return (gchar *)e_table_model_value_at(model->model, model->model_col, model->row);
else
return "";
}
static void
e_table_text_model_set_text(ETextModel *text_model, gchar *text)
{
ETableTextModel *model = E_TABLE_TEXT_MODEL(text_model);
if ( model->model )
e_table_model_set_value_at(model->model, model->model_col, model->row, (void *) text);
}
static void
e_table_text_model_insert(ETextModel *text_model, gint position, gchar *text)
{
ETableTextModel *model = E_TABLE_TEXT_MODEL(text_model);
if ( model->model ) {
gchar *temp = (gchar *)e_table_model_value_at(model->model, model->model_col, model->row);
temp = g_strdup_printf("%.*s%s%s", position, temp, text, temp + position);
e_table_model_set_value_at(model->model, model->model_col, model->row, temp);
g_free(temp);
}
}
static void
e_table_text_model_insert_length(ETextModel *text_model, gint position, gchar *text, gint length)
{
ETableTextModel *model = E_TABLE_TEXT_MODEL(text_model);
if ( model->model ) {
gchar *temp = (gchar *)e_table_model_value_at(model->model, model->model_col, model->row);
temp = g_strdup_printf("%.*s%.*s%s", position, temp, length, text, temp + position);
e_table_model_set_value_at(model->model, model->model_col, model->row, temp);
g_free(temp);
}
}
static void
e_table_text_model_delete(ETextModel *text_model, gint position, gint length)
{
ETableTextModel *model = E_TABLE_TEXT_MODEL(text_model);
if ( model->model ) {
gchar *temp = (gchar *)e_table_model_value_at(model->model, model->model_col, model->row);
temp = g_strdup_printf("%.*s%s", position, temp, temp + position + length);
e_table_model_set_value_at(model->model, model->model_col, model->row, temp);
g_free(temp);
}
}
static void
cell_changed(ETableModel *table_model, int model_col, int row, ETableTextModel *model)
{
if (model->model_col == model_col &&
model->row == row)
e_text_model_changed(E_TEXT_MODEL(model));
}
static void
row_changed(ETableModel *table_model, int row, ETableTextModel *model)
{
if (model->row == row)
e_text_model_changed(E_TEXT_MODEL(model));
}
ETableTextModel *
e_table_text_model_new(ETableModel *table_model, int row, int model_col)
{
ETableTextModel *model = gtk_type_new (e_table_text_model_get_type ());
model->model = table_model;
if ( model->model ) {
gtk_object_ref(GTK_OBJECT(model->model));
model->cell_changed_signal_id =
gtk_signal_connect(GTK_OBJECT(model->model),
"model_cell_changed",
GTK_SIGNAL_FUNC(cell_changed),
model);
model->row_changed_signal_id =
gtk_signal_connect(GTK_OBJECT(model->model),
"model_row_changed",
GTK_SIGNAL_FUNC(row_changed),
model);
}
model->row = row;
model->model_col = model_col;
return model;
}
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