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-rw-r--r--widgets/text/e-text-model.c642
1 files changed, 0 insertions, 642 deletions
diff --git a/widgets/text/e-text-model.c b/widgets/text/e-text-model.c
deleted file mode 100644
index 5027b3a3f7..0000000000
--- a/widgets/text/e-text-model.c
+++ /dev/null
@@ -1,642 +0,0 @@
-/*
- * This program is free software; you can redistribute it and/or
- * modify it under the terms of the GNU Lesser General Public
- * License as published by the Free Software Foundation; either
- * version 2 of the License, or (at your option) version 3.
- *
- * This program 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
- * Lesser General Public License for more details.
- *
- * You should have received a copy of the GNU Lesser General Public
- * License along with the program; if not, see <http://www.gnu.org/licenses/>
- *
- *
- * Authors:
- * Chris Lahey <clahey@ximian.com>
- *
- * Copyright (C) 1999-2008 Novell, Inc. (www.novell.com)
- *
- */
-
-#undef PARANOID_DEBUGGING
-
-#ifdef HAVE_CONFIG_H
-#include <config.h>
-#endif
-
-#include <ctype.h>
-#include <string.h>
-
-#include <gtk/gtk.h>
-
-#include "e-util/e-util.h"
-
-#include "e-text-model.h"
-#include "e-text-model-repos.h"
-
-#define E_TEXT_MODEL_GET_PRIVATE(obj) \
- (G_TYPE_INSTANCE_GET_PRIVATE \
- ((obj), E_TYPE_TEXT_MODEL, ETextModelPrivate))
-
-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 signals[E_TEXT_MODEL_LAST_SIGNAL] = { 0 };
-
-struct _ETextModelPrivate {
- GString *text;
-};
-
-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);
-
-G_DEFINE_TYPE (ETextModel, e_text_model, G_TYPE_OBJECT)
-
-static void
-e_text_model_finalize (GObject *object)
-{
- ETextModelPrivate *priv;
-
- priv = E_TEXT_MODEL_GET_PRIVATE (object);
-
- g_string_free (priv->text, TRUE);
-
- /* Chain up to parent's finalize() method. */
- G_OBJECT_CLASS (e_text_model_parent_class)->finalize (object);
-}
-
-static void
-e_text_model_class_init (ETextModelClass *class)
-{
- GObjectClass *object_class;
-
- g_type_class_add_private (class, sizeof (ETextModelPrivate));
-
- object_class = G_OBJECT_CLASS (class);
- object_class->finalize = e_text_model_finalize;
-
- signals[E_TEXT_MODEL_CHANGED] = g_signal_new (
- "changed",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (ETextModelClass, changed),
- NULL, NULL,
- g_cclosure_marshal_VOID__VOID,
- G_TYPE_NONE, 0);
-
- signals[E_TEXT_MODEL_REPOSITION] = g_signal_new (
- "reposition",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (ETextModelClass, reposition),
- NULL, NULL,
- e_marshal_NONE__POINTER_POINTER,
- G_TYPE_NONE, 2,
- G_TYPE_POINTER,
- G_TYPE_POINTER);
-
- signals[E_TEXT_MODEL_OBJECT_ACTIVATED] = g_signal_new (
- "object_activated",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (ETextModelClass, object_activated),
- NULL, NULL,
- g_cclosure_marshal_VOID__INT,
- G_TYPE_NONE, 1,
- G_TYPE_INT);
-
- signals[E_TEXT_MODEL_CANCEL_COMPLETION] = g_signal_new (
- "cancel_completion",
- G_OBJECT_CLASS_TYPE (object_class),
- G_SIGNAL_RUN_LAST,
- G_STRUCT_OFFSET (ETextModelClass, cancel_completion),
- NULL, NULL,
- g_cclosure_marshal_VOID__VOID,
- G_TYPE_NONE, 0);
-
- /* No default signal handlers. */
- class->changed = NULL;
- class->reposition = NULL;
- class->object_activated = NULL;
-
- class->validate_pos = e_text_model_real_validate_position;
-
- class->get_text = e_text_model_real_get_text;
- class->get_text_len = e_text_model_real_get_text_length;
- class->set_text = e_text_model_real_set_text;
- class->insert = e_text_model_real_insert;
- class->insert_length = e_text_model_real_insert_length;
- class->delete = e_text_model_real_delete;
-
- /* We explicitly don't define default handlers for these. */
- class->objectify = NULL;
- class->obj_count = NULL;
- class->get_nth_obj = NULL;
-}
-
-static void
-e_text_model_init (ETextModel *model)
-{
- model->priv = E_TEXT_MODEL_GET_PRIVATE (model);
- model->priv->text = g_string_new ("");
-}
-
-static gint
-e_text_model_real_validate_position (ETextModel *model,
- gint pos)
-{
- gint len = e_text_model_get_text_length (model);
-
- if (pos < 0)
- pos = 0;
- else if (pos > len)
- pos = len;
-
- return pos;
-}
-
-static const gchar *
-e_text_model_real_get_text (ETextModel *model)
-{
- if (model->priv->text)
- return model->priv->text->str;
- else
- return "";
-}
-
-static gint
-e_text_model_real_get_text_length (ETextModel *model)
-{
- return g_utf8_strlen (model->priv->text->str, -1);
-}
-
-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->str != '\0');
-
- g_string_set_size (model->priv->text, 0);
-
- } else if (*model->priv->text->str == '\0' ||
- strcmp (model->priv->text->str, text)) {
-
- g_string_assign (model->priv->text, text);
-
- 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)
-{
- e_text_model_insert_length (model, position, text, strlen (text));
-}
-
-static void
-e_text_model_real_insert_length (ETextModel *model,
- gint position,
- const gchar *text,
- gint length)
-{
- EReposInsertShift repos;
- gint model_len = e_text_model_real_get_text_length (model);
- gchar *offs;
- const gchar *p;
- gint byte_length, l;
-
- if (position > model_len)
- return;
-
- offs = g_utf8_offset_to_pointer (model->priv->text->str, position);
-
- for (p = text, l = 0;
- l < length;
- p = g_utf8_next_char (p), l++);
-
- byte_length = p - text;
-
- g_string_insert_len (
- model->priv->text,
- offs - model->priv->text->str,
- text, byte_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;
- gint byte_position, byte_length;
- gchar *offs, *p;
- gint l;
-
- offs = g_utf8_offset_to_pointer (model->priv->text->str, position);
- byte_position = offs - model->priv->text->str;
-
- for (p = offs, l = 0;
- l < length;
- p = g_utf8_next_char (p), l++);
-
- byte_length = p - offs;
-
- g_string_erase (
- model->priv->text,
- byte_position, byte_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)
-{
- ETextModelClass *class;
-
- g_return_if_fail (E_IS_TEXT_MODEL (model));
-
- class = E_TEXT_MODEL_GET_CLASS (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->objectify != NULL)
- class->objectify (model);
-
- g_signal_emit (model, signals[E_TEXT_MODEL_CHANGED], 0);
-}
-
-void
-e_text_model_cancel_completion (ETextModel *model)
-{
- g_return_if_fail (E_IS_TEXT_MODEL (model));
-
- g_signal_emit (model, signals[E_TEXT_MODEL_CANCEL_COMPLETION], 0);
-}
-
-void
-e_text_model_reposition (ETextModel *model,
- ETextModelReposFn fn,
- gpointer repos_data)
-{
- g_return_if_fail (E_IS_TEXT_MODEL (model));
- g_return_if_fail (fn != NULL);
-
- g_signal_emit (
- model, signals[E_TEXT_MODEL_REPOSITION], 0, fn, repos_data);
-}
-
-gint
-e_text_model_validate_position (ETextModel *model,
- gint pos)
-{
- ETextModelClass *class;
-
- g_return_val_if_fail (E_IS_TEXT_MODEL (model), 0);
-
- class = E_TEXT_MODEL_GET_CLASS (model);
-
- if (class->validate_pos != NULL)
- pos = class->validate_pos (model, pos);
-
- return pos;
-}
-
-const gchar *
-e_text_model_get_text (ETextModel *model)
-{
- ETextModelClass *class;
-
- g_return_val_if_fail (E_IS_TEXT_MODEL (model), NULL);
-
- class = E_TEXT_MODEL_GET_CLASS (model);
-
- if (class->get_text == NULL)
- return "";
-
- return class->get_text (model);
-}
-
-gint
-e_text_model_get_text_length (ETextModel *model)
-{
- ETextModelClass *class;
-
- g_return_val_if_fail (E_IS_TEXT_MODEL (model), 0);
-
- class = E_TEXT_MODEL_GET_CLASS (model);
-
- if (class->get_text_len (model)) {
-
- gint len = class->get_text_len (model);
-
-#ifdef PARANOID_DEBUGGING
- const gchar *str = e_text_model_get_text (model);
- gint len2 = str ? g_utf8_strlen (str, -1) : 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 ? g_utf8_strlen (str, -1) : 0;
- }
-}
-
-void
-e_text_model_set_text (ETextModel *model,
- const gchar *text)
-{
- ETextModelClass *class;
-
- g_return_if_fail (E_IS_TEXT_MODEL (model));
-
- class = E_TEXT_MODEL_GET_CLASS (model);
-
- if (class->set_text != NULL)
- class->set_text (model, text);
-}
-
-void
-e_text_model_insert (ETextModel *model,
- gint position,
- const gchar *text)
-{
- ETextModelClass *class;
-
- g_return_if_fail (E_IS_TEXT_MODEL (model));
-
- if (text == NULL)
- return;
-
- class = E_TEXT_MODEL_GET_CLASS (model);
-
- if (class->insert != NULL)
- class->insert (model, position, text);
-}
-
-void
-e_text_model_insert_length (ETextModel *model,
- gint position,
- const gchar *text,
- gint length)
-{
- ETextModelClass *class;
-
- g_return_if_fail (E_IS_TEXT_MODEL (model));
- g_return_if_fail (length >= 0);
-
- if (text == NULL || length == 0)
- return;
-
- class = E_TEXT_MODEL_GET_CLASS (model);
-
- if (class->insert_length != NULL)
- class->insert_length (model, position, text, length);
-}
-
-void
-e_text_model_prepend (ETextModel *model,
- const gchar *text)
-{
- 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 (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)
-{
- ETextModelClass *class;
- gint txt_len;
-
- 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;
-
- class = E_TEXT_MODEL_GET_CLASS (model);
-
- if (class->delete != NULL)
- class->delete (model, position, length);
-}
-
-gint
-e_text_model_object_count (ETextModel *model)
-{
- ETextModelClass *class;
-
- g_return_val_if_fail (E_IS_TEXT_MODEL (model), 0);
-
- class = E_TEXT_MODEL_GET_CLASS (model);
-
- if (class->obj_count == NULL)
- return 0;
-
- return class->obj_count (model);
-}
-
-const gchar *
-e_text_model_get_nth_object (ETextModel *model,
- gint n,
- gint *len)
-{
- ETextModelClass *class;
-
- g_return_val_if_fail (E_IS_TEXT_MODEL (model), NULL);
-
- if (n < 0 || n >= e_text_model_object_count (model))
- return NULL;
-
- class = E_TEXT_MODEL_GET_CLASS (model);
-
- if (class->get_nth_obj == NULL)
- return NULL;
-
- return class->get_nth_obj (model, n, len);
-}
-
-gchar *
-e_text_model_strdup_nth_object (ETextModel *model,
- gint n)
-{
- const gchar *obj;
- gint len = 0;
-
- g_return_val_if_fail (E_IS_TEXT_MODEL (model), NULL);
-
- obj = e_text_model_get_nth_object (model, n, &len);
-
- if (obj) {
- gint byte_len;
- byte_len = g_utf8_offset_to_pointer (obj, len) - obj;
- return g_strndup (obj, byte_len);
- }
- else {
- return 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 (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 = g_utf8_pointer_to_offset (txt, obj);
- if (end)
- *end = (start ? *start : 0) + len;
-}
-
-gint
-e_text_model_get_object_at_offset (ETextModel *model,
- gint offset)
-{
- ETextModelClass *class;
-
- g_return_val_if_fail (E_IS_TEXT_MODEL (model), -1);
-
- if (offset < 0 || offset >= e_text_model_get_text_length (model))
- return -1;
-
- class = E_TEXT_MODEL_GET_CLASS (model);
-
- /* If an optimized version has been provided, we use it. */
- if (class->obj_at_offset != NULL) {
- return class->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 (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));
-
- g_signal_emit (model, signals[E_TEXT_MODEL_OBJECT_ACTIVATED], 0, n);
-}
-
-ETextModel *
-e_text_model_new (void)
-{
- ETextModel *model = g_object_new (E_TYPE_TEXT_MODEL, NULL);
- return model;
-}
generated by cgit v1.2.3 (git 2.25.1) at 2024-07-17 04:05:09 +0800