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-rw-r--r--widgets/text/e-text-model.c645
1 files changed, 0 insertions, 645 deletions
diff --git a/widgets/text/e-text-model.c b/widgets/text/e-text-model.c
deleted file mode 100644
index da8644570b..0000000000
--- a/widgets/text/e-text-model.c
+++ /dev/null
@@ -1,645 +0,0 @@
-/* -*- Mode: C; tab-width: 8; indent-tabs-mode: t; c-basic-offset: 8 -*- */
-/*
- * e-text-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.
- */
-
-#undef PARANOID_DEBUGGING
-
-#include <config.h>
-#include <ctype.h>
-#include <string.h>
-#include <gtk/gtksignal.h>
-#include "e-text-model-repos.h"
-#include "e-text-model.h"
-#include "gal/util/e-util.h"
-
-#define CLASS(obj) (E_TEXT_MODEL_CLASS (GTK_OBJECT (obj)->klass))
-
-#define MAX_LENGTH (2047)
-
-enum {
- E_TEXT_MODEL_CHANGED,
- E_TEXT_MODEL_REPOSITION,
- E_TEXT_MODEL_OBJECT_ACTIVATED,
- E_TEXT_MODEL_CANCEL_COMPLETION,
- E_TEXT_MODEL_LAST_SIGNAL
-};
-
-static guint e_text_model_signals[E_TEXT_MODEL_LAST_SIGNAL] = { 0 };
-
-struct _ETextModelPrivate {
- gchar *text;
- gint len;
-};
-
-static void e_text_model_class_init (ETextModelClass *class);
-static void e_text_model_init (ETextModel *model);
-static void e_text_model_destroy (GtkObject *object);
-
-static gint e_text_model_real_validate_position (ETextModel *, gint pos);
-static const gchar *e_text_model_real_get_text (ETextModel *model);
-static gint e_text_model_real_get_text_length (ETextModel *model);
-static void e_text_model_real_set_text (ETextModel *model, const gchar *text);
-static void e_text_model_real_insert (ETextModel *model, gint postion, const gchar *text);
-static void e_text_model_real_insert_length (ETextModel *model, gint postion, const gchar *text, gint length);
-static void e_text_model_real_delete (ETextModel *model, gint postion, gint length);
-
-static GtkObject *parent_class;
-
-
-
-/**
- * e_text_model_get_type:
- * @void:
- *
- * Registers the &ETextModel class if necessary, and returns the type ID
- * associated to it.
- *
- * Return value: The type ID of the &ETextModel class.
- **/
-GtkType
-e_text_model_get_type (void)
-{
- static GtkType model_type = 0;
-
- if (!model_type) {
- GtkTypeInfo model_info = {
- "ETextModel",
- sizeof (ETextModel),
- sizeof (ETextModelClass),
- (GtkClassInitFunc) e_text_model_class_init,
- (GtkObjectInitFunc) e_text_model_init,
- NULL, /* reserved_1 */
- NULL, /* reserved_2 */
- (GtkClassInitFunc) NULL
- };
-
- model_type = gtk_type_unique (gtk_object_get_type (), &model_info);
- }
-
- return model_type;
-}
-
-/* Class initialization function for the text item */
-static void
-e_text_model_class_init (ETextModelClass *klass)
-{
- GtkObjectClass *object_class;
-
- object_class = (GtkObjectClass *) klass;
-
- parent_class = gtk_type_class (gtk_object_get_type ());
-
- e_text_model_signals[E_TEXT_MODEL_CHANGED] =
- gtk_signal_new ("changed",
- GTK_RUN_LAST,
- E_OBJECT_CLASS_TYPE (object_class),
- GTK_SIGNAL_OFFSET (ETextModelClass, changed),
- gtk_marshal_NONE__NONE,
- GTK_TYPE_NONE, 0);
-
- e_text_model_signals[E_TEXT_MODEL_REPOSITION] =
- gtk_signal_new ("reposition",
- GTK_RUN_LAST,
- E_OBJECT_CLASS_TYPE (object_class),
- GTK_SIGNAL_OFFSET (ETextModelClass, reposition),
- gtk_marshal_NONE__POINTER_POINTER,
- GTK_TYPE_NONE, 2,
- GTK_TYPE_POINTER, GTK_TYPE_POINTER);
-
- e_text_model_signals[E_TEXT_MODEL_OBJECT_ACTIVATED] =
- gtk_signal_new ("object_activated",
- GTK_RUN_LAST,
- E_OBJECT_CLASS_TYPE (object_class),
- GTK_SIGNAL_OFFSET (ETextModelClass, object_activated),
- gtk_marshal_NONE__INT,
- GTK_TYPE_NONE, 1,
- GTK_TYPE_INT);
-
- e_text_model_signals[E_TEXT_MODEL_CANCEL_COMPLETION] =
- gtk_signal_new ("cancel_completion",
- GTK_RUN_LAST,
- E_OBJECT_CLASS_TYPE (object_class),
- GTK_SIGNAL_OFFSET (ETextModelClass, cancel_completion),
- gtk_marshal_NONE__NONE,
- GTK_TYPE_NONE, 0);
-
- E_OBJECT_CLASS_ADD_SIGNALS (object_class, e_text_model_signals, E_TEXT_MODEL_LAST_SIGNAL);
-
- /* No default signal handlers. */
- klass->changed = NULL;
- klass->reposition = NULL;
- klass->object_activated = NULL;
-
- klass->validate_pos = e_text_model_real_validate_position;
-
- klass->get_text = e_text_model_real_get_text;
- klass->get_text_len = e_text_model_real_get_text_length;
- klass->set_text = e_text_model_real_set_text;
- klass->insert = e_text_model_real_insert;
- klass->insert_length = e_text_model_real_insert_length;
- klass->delete = e_text_model_real_delete;
-
- /* We explicitly don't define default handlers for these. */
- klass->objectify = NULL;
- klass->obj_count = NULL;
- klass->get_nth_obj = NULL;
-
- object_class->destroy = e_text_model_destroy;
-}
-
-/* Object initialization function for the text item */
-static void
-e_text_model_init (ETextModel *model)
-{
- model->priv = g_new0 (struct _ETextModelPrivate, 1);
- model->priv->text = g_strdup ("");
- model->priv->len = 0;
-}
-
-/* Destroy handler for the text item */
-static void
-e_text_model_destroy (GtkObject *object)
-{
- ETextModel *model;
-
- g_return_if_fail (object != NULL);
- g_return_if_fail (E_IS_TEXT_MODEL (object));
-
- model = E_TEXT_MODEL (object);
-
- g_free (model->priv->text);
-
- g_free (model->priv);
- model->priv = NULL;
-
- if (GTK_OBJECT_CLASS (parent_class)->destroy)
- GTK_OBJECT_CLASS (parent_class)->destroy (object);
-}
-
-static gint
-e_text_model_real_validate_position (ETextModel *model, gint pos)
-{
- gint len;
-
- if (pos < 0)
- pos = 0;
- else if (pos > ( len = e_text_model_get_text_length (model) ))
- pos = len;
-
- return pos;
-}
-
-static const gchar *
-e_text_model_real_get_text (ETextModel *model)
-{
- if (model->priv->text)
- return model->priv->text;
- else
- return "";
-}
-
-static gint
-e_text_model_real_get_text_length (ETextModel *model)
-{
- if (model->priv->len < 0)
- model->priv->len = strlen (e_text_model_get_text (model));
-
- return model->priv->len;
-}
-
-static void
-e_text_model_real_set_text (ETextModel *model, const gchar *text)
-{
- EReposAbsolute repos;
- gboolean changed = FALSE;
-
- if (text == NULL) {
-
- changed = (model->priv->text != NULL);
-
- g_free (model->priv->text);
- model->priv->text = NULL;
- model->priv->len = -1;
-
- } else if (model->priv->text == NULL || strcmp (model->priv->text, text)) {
-
- g_free (model->priv->text);
- model->priv->text = g_strndup (text, MAX_LENGTH);
- model->priv->len = -1;
-
- changed = TRUE;
- }
-
- if (changed) {
- e_text_model_changed (model);
- repos.model = model;
- repos.pos = -1;
- e_text_model_reposition (model, e_repos_absolute, &repos);
- }
-}
-
-static void
-e_text_model_real_insert (ETextModel *model, gint position, const gchar *text)
-{
- EReposInsertShift repos;
- gchar *new_text;
- gint length;
-
- if (model->priv->len < 0)
- e_text_model_real_get_text_length (model);
- length = strlen(text);
-
- if (length + model->priv->len > MAX_LENGTH)
- length = MAX_LENGTH - model->priv->len;
- if (length <= 0)
- return;
-
- /* Can't use g_strdup_printf here because on some systems
- printf ("%.*s"); is locale dependent. */
- new_text = e_strdup_append_strings (model->priv->text, position,
- text, length,
- model->priv->text + position, -1,
- NULL);
-
- if (model->priv->text)
- g_free (model->priv->text);
-
- model->priv->text = new_text;
-
- if (model->priv->len >= 0)
- model->priv->len += length;
-
- e_text_model_changed (model);
-
- repos.model = model;
- repos.pos = position;
- repos.len = length;
-
- e_text_model_reposition (model, e_repos_insert_shift, &repos);
-}
-
-static void
-e_text_model_real_insert_length (ETextModel *model, gint position, const gchar *text, gint length)
-{
- EReposInsertShift repos;
- gchar *new_text;
-
- if (model->priv->len < 0)
- e_text_model_real_get_text_length (model);
-
- if (length + model->priv->len > MAX_LENGTH)
- length = MAX_LENGTH - model->priv->len;
- if (length <= 0)
- return;
-
- /* Can't use g_strdup_printf here because on some systems
- printf ("%.*s"); is locale dependent. */
- new_text = e_strdup_append_strings (model->priv->text, position,
- text, length,
- model->priv->text + position, -1,
- NULL);
-
- if (model->priv->text)
- g_free (model->priv->text);
- model->priv->text = new_text;
-
- if (model->priv->len >= 0)
- model->priv->len += length;
-
- e_text_model_changed (model);
-
- repos.model = model;
- repos.pos = position;
- repos.len = length;
-
- e_text_model_reposition (model, e_repos_insert_shift, &repos);
-}
-
-static void
-e_text_model_real_delete (ETextModel *model, gint position, gint length)
-{
- EReposDeleteShift repos;
-
- memmove (model->priv->text + position, model->priv->text + position + length, strlen (model->priv->text + position + length) + 1);
-
- if (model->priv->len >= 0)
- model->priv->len -= length;
-
- e_text_model_changed (model);
-
- repos.model = model;
- repos.pos = position;
- repos.len = length;
-
- e_text_model_reposition (model, e_repos_delete_shift, &repos);
-}
-
-void
-e_text_model_changed (ETextModel *model)
-{
- g_return_if_fail (model != NULL);
- g_return_if_fail (E_IS_TEXT_MODEL (model));
-
- /*
- Objectify before emitting any signal.
- While this method could, in theory, do pretty much anything, it is meant
- for scanning objects and converting substrings into embedded objects.
- */
- if (CLASS (model)->objectify)
- CLASS (model)->objectify (model);
-
- gtk_signal_emit (GTK_OBJECT (model),
- e_text_model_signals[E_TEXT_MODEL_CHANGED]);
-}
-
-void
-e_text_model_cancel_completion (ETextModel *model)
-{
- g_return_if_fail (E_IS_TEXT_MODEL (model));
-
- gtk_signal_emit (GTK_OBJECT (model), e_text_model_signals[E_TEXT_MODEL_CANCEL_COMPLETION]);
-}
-
-void
-e_text_model_reposition (ETextModel *model, ETextModelReposFn fn, gpointer repos_data)
-{
- g_return_if_fail (model != NULL);
- g_return_if_fail (E_IS_TEXT_MODEL (model));
- g_return_if_fail (fn != NULL);
-
- gtk_signal_emit (GTK_OBJECT (model),
- e_text_model_signals[E_TEXT_MODEL_REPOSITION],
- fn, repos_data);
-}
-
-gint
-e_text_model_validate_position (ETextModel *model, gint pos)
-{
- g_return_val_if_fail (model != NULL, 0);
- g_return_val_if_fail (E_IS_TEXT_MODEL (model), 0);
-
- if (CLASS (model)->validate_pos)
- pos = CLASS (model)->validate_pos (model, pos);
-
- return pos;
-}
-
-const gchar *
-e_text_model_get_text (ETextModel *model)
-{
- g_return_val_if_fail (model != NULL, NULL);
- g_return_val_if_fail (E_IS_TEXT_MODEL (model), NULL);
-
- if (CLASS (model)->get_text)
- return CLASS (model)->get_text (model);
-
- return "";
-}
-
-gint
-e_text_model_get_text_length (ETextModel *model)
-{
- g_return_val_if_fail (model != NULL, 0);
- g_return_val_if_fail (E_IS_TEXT_MODEL (model), 0);
-
- if (CLASS (model)->get_text_len (model)) {
-
- gint len = CLASS (model)->get_text_len (model);
-
-#ifdef PARANOID_DEBUGGING
- const gchar *str = e_text_model_get_text (model);
- gint len2 = str ? strlen (str) : 0;
- if (len != len)
- g_error ("\"%s\" length reported as %d, not %d.", str, len, len2);
-#endif
-
- return len;
-
- } else {
- /* Calculate length the old-fashioned way... */
- const gchar *str = e_text_model_get_text (model);
- return str ? strlen (str) : 0;
- }
-}
-
-void
-e_text_model_set_text (ETextModel *model, const gchar *text)
-{
- g_return_if_fail (model != NULL);
- g_return_if_fail (E_IS_TEXT_MODEL (model));
-
- if (CLASS (model)->set_text)
- CLASS (model)->set_text (model, text);
-}
-
-void
-e_text_model_insert (ETextModel *model, gint position, const gchar *text)
-{
- g_return_if_fail (model != NULL);
- g_return_if_fail (E_IS_TEXT_MODEL (model));
-
- if (text == NULL)
- return;
-
- if (CLASS (model)->insert)
- CLASS (model)->insert (model, position, text);
-}
-
-void
-e_text_model_insert_length (ETextModel *model, gint position, const gchar *text, gint length)
-{
- g_return_if_fail (model != NULL);
- g_return_if_fail (E_IS_TEXT_MODEL (model));
- g_return_if_fail (length >= 0);
-
-
- if (text == NULL || length == 0)
- return;
-
- if (CLASS (model)->insert_length)
- CLASS (model)->insert_length (model, position, text, length);
-}
-
-void
-e_text_model_prepend (ETextModel *model, const gchar *text)
-{
- g_return_if_fail (model != NULL);
- g_return_if_fail (E_IS_TEXT_MODEL (model));
-
- if (text == NULL)
- return;
-
- e_text_model_insert (model, 0, text);
-}
-
-void
-e_text_model_append (ETextModel *model, const gchar *text)
-{
- g_return_if_fail (model != NULL);
- g_return_if_fail (E_IS_TEXT_MODEL (model));
-
- if (text == NULL)
- return;
-
- e_text_model_insert (model, e_text_model_get_text_length (model), text);
-}
-
-void
-e_text_model_delete (ETextModel *model, gint position, gint length)
-{
- gint txt_len;
-
- g_return_if_fail (model != NULL);
- g_return_if_fail (E_IS_TEXT_MODEL (model));
- g_return_if_fail (length >= 0);
-
- txt_len = e_text_model_get_text_length (model);
- if (position + length > txt_len)
- length = txt_len - position;
-
- if (length <= 0)
- return;
-
- if (CLASS (model)->delete)
- CLASS (model)->delete (model, position, length);
-}
-
-gint
-e_text_model_object_count (ETextModel *model)
-{
- g_return_val_if_fail (model != NULL, 0);
- g_return_val_if_fail (E_IS_TEXT_MODEL (model), 0);
-
- if (CLASS (model)->obj_count)
- return CLASS (model)->obj_count (model);
-
- return 0;
-}
-
-const gchar *
-e_text_model_get_nth_object (ETextModel *model, gint n, gint *len)
-{
- g_return_val_if_fail (model != NULL, NULL);
- g_return_val_if_fail (E_IS_TEXT_MODEL (model), NULL);
-
- if (n < 0 || n >= e_text_model_object_count (model))
- return NULL;
-
- if (CLASS (model)->get_nth_obj)
- return CLASS (model)->get_nth_obj (model, n, len);
-
- return NULL;
-}
-
-gchar *
-e_text_model_strdup_nth_object (ETextModel *model, gint n)
-{
- const gchar *obj;
- gint len = 0;
-
- g_return_val_if_fail (model != NULL, NULL);
- g_return_val_if_fail (E_IS_TEXT_MODEL (model), NULL);
-
- obj = e_text_model_get_nth_object (model, n, &len);
-
- return obj ? g_strndup (obj, n) : NULL;
-}
-
-void
-e_text_model_get_nth_object_bounds (ETextModel *model, gint n, gint *start, gint *end)
-{
- const gchar *txt = NULL, *obj = NULL;
- gint len = 0;
-
- g_return_if_fail (model != NULL);
- g_return_if_fail (E_IS_TEXT_MODEL (model));
-
- txt = e_text_model_get_text (model);
- obj = e_text_model_get_nth_object (model, n, &len);
-
- g_return_if_fail (obj != NULL);
-
- if (start)
- *start = obj - txt;
- if (end)
- *end = obj - txt + len;
-}
-
-gint
-e_text_model_get_object_at_offset (ETextModel *model, gint offset)
-{
- g_return_val_if_fail (model != NULL, -1);
- g_return_val_if_fail (E_IS_TEXT_MODEL (model), -1);
-
- if (offset < 0 || offset >= e_text_model_get_text_length (model))
- return -1;
-
- /* If an optimized version has been provided, we use it. */
- if (CLASS (model)->obj_at_offset) {
-
- return CLASS (model)->obj_at_offset (model, offset);
-
- } else {
- /* If not, we fake it.*/
-
- gint i, N, pos0, pos1;
-
- N = e_text_model_object_count (model);
-
- for (i = 0; i < N; ++i) {
- e_text_model_get_nth_object_bounds (model, i, &pos0, &pos1);
- if (pos0 <= offset && offset < pos1)
- return i;
- }
-
- }
-
- return -1;
-}
-
-gint
-e_text_model_get_object_at_pointer (ETextModel *model, const gchar *s)
-{
- g_return_val_if_fail (model != NULL, -1);
- g_return_val_if_fail (E_IS_TEXT_MODEL (model), -1);
- g_return_val_if_fail (s != NULL, -1);
-
- return e_text_model_get_object_at_offset (model, s - e_text_model_get_text (model));
-}
-
-void
-e_text_model_activate_nth_object (ETextModel *model, gint n)
-{
- g_return_if_fail (model != NULL);
- g_return_if_fail (E_IS_TEXT_MODEL (model));
- g_return_if_fail (n >= 0);
- g_return_if_fail (n < e_text_model_object_count (model));
-
- gtk_signal_emit (GTK_OBJECT (model), e_text_model_signals[E_TEXT_MODEL_OBJECT_ACTIVATED], n);
-}
-
-ETextModel *
-e_text_model_new (void)
-{
- ETextModel *model = gtk_type_new (e_text_model_get_type ());
- return model;
-}
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