void
apotheke_highlight_buffer_diff (GtkTextBuffer *buffer, GtkTextIter *start)
{
GtkTextIter *end;
GtkTextIter *word_end;
gchar *c;
if (!gtk_text_iter_starts_line (start))
gtk_text_iter_set_line_offset (start, 0);
while (!gtk_text_iter_is_end (start)) {
end = gtk_text_iter_copy (start);
if (!gtk_text_iter_forward_to_line_end (end))
break;
word_end = gtk_text_iter_copy (start);
gtk_text_iter_forward_char (word_end);
c = gtk_text_iter_get_text (start, word_end);
if (g_ascii_strcasecmp ("+", c) == 0) {
gtk_text_buffer_apply_tag_by_name (buffer,
"diff-added",
start, end);
}
else if (g_ascii_strcasecmp ("-", c) == 0) {
gtk_text_buffer_apply_tag_by_name (buffer,
"diff-removed",
start, end);
}
gtk_text_iter_forward_line (start);
}
}
static void
smie_gtk_source_buffer_push_context (gpointer data)
{
smie_gtk_source_buffer_context_t *context = data;
context->stack = g_list_prepend (context->stack,
gtk_text_iter_copy (&context->iter));
}
static gchar *
get_word (GtkSourceCompletionProvider *provider,
GtkTextIter *iter)
{
GtkTextIter *end;
gboolean moved = FALSE;
gunichar c;
gchar *word;
end = gtk_text_iter_copy(iter);
do {
if (!gtk_text_iter_backward_char(iter)) {
break;
}
c = gtk_text_iter_get_char(iter);
moved = TRUE;
} while (!is_stop_char(c));
if (moved && !gtk_text_iter_is_start(iter)) {
gtk_text_iter_forward_char(iter);
}
word = g_strstrip(gtk_text_iter_get_text(iter, end));
gtk_text_iter_free(end);
return word;
}
/* C programmers allocate iters on the stack. We use this.
Free it with gtk-text-iter-free */
GtkTextIter *
gtk_adds_text_iter_new ()
{
GtkTextIter example;
return gtk_text_iter_copy(&example);
}
/**
* gtk_text_buffer_deserialize:
* @register_buffer: the #GtkTextBuffer @format is registered with
* @content_buffer: the #GtkTextBuffer to deserialize into
* @format: the rich text format to use for deserializing
* @iter: insertion point for the deserialized text
* @data: (array length=length): data to deserialize
* @length: length of @data
* @error: return location for a #GError
*
* This function deserializes rich text in format @format and inserts
* it at @iter.
*
* @format<!-- -->s to be used must be registered using
* gtk_text_buffer_register_deserialize_format() or
* gtk_text_buffer_register_deserialize_tagset() beforehand.
*
* Return value: %TRUE on success, %FALSE otherwise.
*
* Since: 2.10
**/
gboolean
gtk_text_buffer_deserialize (GtkTextBuffer *register_buffer,
GtkTextBuffer *content_buffer,
GdkAtom format,
GtkTextIter *iter,
const guint8 *data,
gsize length,
GError **error)
{
GList *formats;
GList *list;
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (register_buffer), FALSE);
g_return_val_if_fail (GTK_IS_TEXT_BUFFER (content_buffer), FALSE);
g_return_val_if_fail (format != GDK_NONE, FALSE);
g_return_val_if_fail (iter != NULL, FALSE);
g_return_val_if_fail (data != NULL, FALSE);
g_return_val_if_fail (length > 0, FALSE);
g_return_val_if_fail (error == NULL || *error == NULL, FALSE);
formats = g_object_get_qdata (G_OBJECT (register_buffer),
deserialize_quark ());
for (list = formats; list; list = g_list_next (list))
{
GtkRichTextFormat *fmt = list->data;
if (fmt->atom == format)
{
GtkTextBufferDeserializeFunc function = fmt->function;
gboolean success;
GSList *split_tags;
GSList *list;
GtkTextMark *left_end = NULL;
GtkTextMark *right_start = NULL;
GSList *left_start_list = NULL;
GSList *right_end_list = NULL;
/* We don't want the tags that are effective at the insertion
* point to affect the pasted text, therefore we remove and
* remember them, so they can be re-applied left and right of
* the inserted text after pasting
*/
split_tags = gtk_text_iter_get_tags (iter);
list = split_tags;
while (list)
{
GtkTextTag *tag = list->data;
list = g_slist_next (list);
/* If a tag begins at the insertion point, ignore it
* because it doesn't affect the pasted text
*/
if (gtk_text_iter_begins_tag (iter, tag))
split_tags = g_slist_remove (split_tags, tag);
}
if (split_tags)
{
/* Need to remember text marks, because text iters
* don't survive pasting
*/
left_end = gtk_text_buffer_create_mark (content_buffer,
NULL, iter, TRUE);
right_start = gtk_text_buffer_create_mark (content_buffer,
NULL, iter, FALSE);
for (list = split_tags; list; list = g_slist_next (list))
{
GtkTextTag *tag = list->data;
GtkTextIter *backward_toggle = gtk_text_iter_copy (iter);
GtkTextIter *forward_toggle = gtk_text_iter_copy (iter);
GtkTextMark *left_start = NULL;
GtkTextMark *right_end = NULL;
gtk_text_iter_backward_to_tag_toggle (backward_toggle, tag);
left_start = gtk_text_buffer_create_mark (content_buffer,
NULL,
backward_toggle,
FALSE);
gtk_text_iter_forward_to_tag_toggle (forward_toggle, tag);
right_end = gtk_text_buffer_create_mark (content_buffer,
NULL,
forward_toggle,
TRUE);
left_start_list = g_slist_prepend (left_start_list, left_start);
right_end_list = g_slist_prepend (right_end_list, right_end);
gtk_text_buffer_remove_tag (content_buffer, tag,
backward_toggle,
forward_toggle);
gtk_text_iter_free (forward_toggle);
gtk_text_iter_free (backward_toggle);
}
left_start_list = g_slist_reverse (left_start_list);
right_end_list = g_slist_reverse (right_end_list);
}
success = function (register_buffer, content_buffer,
iter, data, length,
fmt->can_create_tags,
fmt->user_data,
error);
if (!success && error != NULL && *error == NULL)
g_set_error (error, 0, 0,
_("Unknown error when trying to deserialize %s"),
gdk_atom_name (format));
if (split_tags)
{
GSList *left_list;
GSList *right_list;
GtkTextIter left_e;
GtkTextIter right_s;
/* Turn the remembered marks back into iters so they
* can by used to re-apply the remembered tags
*/
gtk_text_buffer_get_iter_at_mark (content_buffer,
&left_e, left_end);
gtk_text_buffer_get_iter_at_mark (content_buffer,
&right_s, right_start);
for (list = split_tags,
left_list = left_start_list,
right_list = right_end_list;
list && left_list && right_list;
list = g_slist_next (list),
left_list = g_slist_next (left_list),
right_list = g_slist_next (right_list))
{
GtkTextTag *tag = list->data;
GtkTextMark *left_start = left_list->data;
GtkTextMark *right_end = right_list->data;
GtkTextIter left_s;
GtkTextIter right_e;
gtk_text_buffer_get_iter_at_mark (content_buffer,
&left_s, left_start);
gtk_text_buffer_get_iter_at_mark (content_buffer,
&right_e, right_end);
gtk_text_buffer_apply_tag (content_buffer, tag,
&left_s, &left_e);
gtk_text_buffer_apply_tag (content_buffer, tag,
&right_s, &right_e);
gtk_text_buffer_delete_mark (content_buffer, left_start);
gtk_text_buffer_delete_mark (content_buffer, right_end);
}
gtk_text_buffer_delete_mark (content_buffer, left_end);
gtk_text_buffer_delete_mark (content_buffer, right_start);
g_slist_free (split_tags);
g_slist_free (left_start_list);
g_slist_free (right_end_list);
}
return success;
}
}
g_set_error (error, 0, 0,
_("No deserialize function found for format %s"),
gdk_atom_name (format));
return FALSE;
}
/* *** TextIter *** */
EXTERNML GtkTextIter* alloc_GtkTextIter() {
GtkTextIter res;
return gtk_text_iter_copy(&res);
}
