/**
* inf_text_buffer_insert_text:
* @buffer: A #InfTextBuffer.
* @pos: A character offset into @buffer.
* @text (type=guint8*) (array length=bytes) (transfer none): A pointer to
* the text to insert.
* @len: The length (in characters) of @text.
* @bytes: The length (in bytes) of @text.
* @user: (allow-none): A #InfUser that has inserted the new text, or %NULL.
*
* Inserts @text into @buffer as written by @author. @text must be encoded in
* the character encoding of the buffer, see inf_text_buffer_get_encoding().
**/
void
inf_text_buffer_insert_text(InfTextBuffer* buffer,
guint pos,
gconstpointer text,
gsize bytes,
guint len,
InfUser* user)
{
InfTextBufferInterface* iface;
InfTextChunk* chunk;
g_return_if_fail(INF_TEXT_IS_BUFFER(buffer));
g_return_if_fail(text != NULL);
g_return_if_fail(user == NULL || INF_IS_USER(user));
iface = INF_TEXT_BUFFER_GET_IFACE(buffer);
g_return_if_fail(iface->insert_text != NULL);
chunk = inf_text_chunk_new(inf_text_buffer_get_encoding(buffer));
inf_text_chunk_insert_text(
chunk,
0,
text,
bytes,
len,
user == NULL ? 0 : inf_user_get_id(user)
);
iface->insert_text(buffer, pos, chunk, user);
inf_text_chunk_free(chunk);
}
static guint
infinoted_plugin_linekeeper_count_lines(InfTextBuffer* buffer)
{
/* Count the number of lines at the end of the document. This assumes the
* buffer content is in UTF-8, which is currently hardcoded in infinoted. */
InfTextBufferIter* iter;
guint n_lines;
gboolean has_iter;
guint length;
gsize bytes;
gchar* text;
gchar* pos;
gchar* new_pos;
gunichar c;
g_assert(strcmp(inf_text_buffer_get_encoding(buffer), "UTF-8") == 0);
n_lines = 0;
iter = inf_text_buffer_create_end_iter(buffer);
if(iter == NULL) return 0;
do
{
length = inf_text_buffer_iter_get_length(buffer, iter);
bytes = inf_text_buffer_iter_get_bytes(buffer, iter);
text = inf_text_buffer_iter_get_text(buffer, iter);
pos = text + bytes;
while(length > 0)
{
new_pos = g_utf8_prev_char(pos);
g_assert(bytes >= (pos - new_pos));
c = g_utf8_get_char(new_pos);
if(c == '\n' || g_unichar_type(c) == G_UNICODE_LINE_SEPARATOR)
++n_lines;
else
break;
--length;
bytes -= (pos - new_pos);
pos = new_pos;
}
g_free(text);
} while(length == 0 && inf_text_buffer_iter_prev(buffer, iter));
inf_text_buffer_destroy_iter(buffer, iter);
return n_lines;
}
static InfAdoptedOperation*
inf_text_remote_delete_operation_apply_transformed(InfAdoptedOperation* op,
InfAdoptedOperation* trans,
InfAdoptedUser* by,
InfBuffer* buffer,
GError** error)
{
InfTextRemoteDeleteOperationPrivate* priv;
InfTextChunk* chunk;
InfTextChunk* temp_slice;
GSList* list;
GSList* item;
InfAdoptedOperation* operation;
GSList* recon_list;
GSList* recon_item;
InfTextRemoteDeleteOperationRecon* recon;
InfTextDefaultDeleteOperation* result;
g_assert(INF_TEXT_IS_REMOTE_DELETE_OPERATION(op));
g_assert(INF_TEXT_IS_BUFFER(buffer));
/* TODO: We can probably optimize this function, but then we should
* a) profile it and b) in many cases input parameters to this function
* are trivial anyway. */
if(INF_ADOPTED_IS_SPLIT_OPERATION(trans))
{
list = inf_adopted_split_operation_unsplit(
INF_ADOPTED_SPLIT_OPERATION(trans)
);
}
else
{
list = g_slist_prepend(NULL, trans);
}
chunk = inf_text_chunk_new(
inf_text_buffer_get_encoding(INF_TEXT_BUFFER(buffer))
);
/* We assume the list of remote delete operations to be in order */
for(item = list; item != NULL; item = g_slist_next(item))
{
g_assert(INF_TEXT_IS_REMOTE_DELETE_OPERATION(item->data));
priv = INF_TEXT_REMOTE_DELETE_OPERATION_PRIVATE(item->data);
operation = INF_ADOPTED_OPERATION(item->data);
if(priv->length > 0)
{
temp_slice = inf_text_buffer_get_slice(
INF_TEXT_BUFFER(buffer),
priv->position,
priv->length
);
recon_list = inf_text_remote_delete_operation_recon_feed(
priv->recon,
0,
temp_slice
);
inf_text_chunk_free(temp_slice);
}
else
{
recon_list = priv->recon;
}
for(recon_item = recon_list;
recon_item != NULL;
recon_item = g_slist_next(recon_item))
{
recon = (InfTextRemoteDeleteOperationRecon*)recon_item->data;
g_assert(priv->recon_offset + recon->position ==
inf_text_chunk_get_length(chunk));
inf_text_chunk_insert_chunk(
chunk,
inf_text_chunk_get_length(chunk),
recon->chunk
);
}
/* Free recon list if newly allocated */
if(priv->length > 0)
inf_text_remote_delete_operation_recon_free(recon_list);
if(!inf_adopted_operation_apply(operation, by, buffer, error))
{
g_slist_free(list);
inf_text_chunk_free(chunk);
return NULL;
}
}
g_slist_free(list);
priv = INF_TEXT_REMOTE_DELETE_OPERATION_PRIVATE(op);
result = inf_text_default_delete_operation_new(priv->position, chunk);
inf_text_chunk_free(chunk);
return INF_ADOPTED_OPERATION(result);
}
QString TextBuffer::encoding()
{
return inf_text_buffer_get_encoding( INF_TEXT_BUFFER(gobject()) );
}
