/* TODO: Merge adjacent text chunks */
static GSList*
inf_text_remote_delete_operation_recon_feed(GSList* recon_list,
guint position,
InfTextChunk* chunk)
{
GSList* item;
InfTextRemoteDeleteOperationRecon* recon;
GSList* new_list;
GSList* last;
InfTextRemoteDeleteOperationRecon* new_recon;
guint text_pos;
guint cur_len;
guint text_len;
new_list = NULL;
text_pos = 0;
cur_len = 0;
for(item = recon_list; item != NULL; item = g_slist_next(item))
{
recon = (InfTextRemoteDeleteOperationRecon*)item->data;
if(position + text_pos + cur_len < recon->position &&
text_pos < inf_text_chunk_get_length(chunk))
{
text_len = recon->position - position - text_pos - cur_len;
if(text_len > inf_text_chunk_get_length(chunk) - text_pos)
text_len = inf_text_chunk_get_length(chunk) - text_pos;
new_recon = g_slice_new(InfTextRemoteDeleteOperationRecon);
new_recon->position = position + text_pos + cur_len;
new_recon->chunk = inf_text_chunk_substring(chunk, text_pos, text_len);
new_list = g_slist_append_fast(new_list, &last, new_recon);
text_pos += text_len;
}
cur_len += inf_text_chunk_get_length(recon->chunk);
new_recon = g_slice_new(InfTextRemoteDeleteOperationRecon);
new_recon->position = recon->position;
new_recon->chunk = inf_text_chunk_copy(recon->chunk);
new_list = g_slist_append_fast(new_list, &last, new_recon);
}
if(text_pos < inf_text_chunk_get_length(chunk))
{
new_recon = g_slice_new(InfTextRemoteDeleteOperationRecon);
new_recon->position = position + text_pos + cur_len;
new_recon->chunk = inf_text_chunk_substring(
chunk,
text_pos,
inf_text_chunk_get_length(chunk) - text_pos
);
new_list = g_slist_append_fast(new_list, &last, new_recon);
}
return new_list;
}
static InfAdoptedSplitOperation*
inf_text_default_delete_operation_transform_split(
InfTextDeleteOperation* operation,
guint split_pos,
guint split_len)
{
InfTextDefaultDeleteOperationPrivate* priv;
InfTextChunk* first_chunk;
InfTextChunk* second_chunk;
GObject* first;
GObject* second;
InfAdoptedSplitOperation* result;
priv = INF_TEXT_DEFAULT_DELETE_OPERATION_PRIVATE(operation);
first_chunk = inf_text_chunk_substring(priv->chunk, 0, split_pos);
second_chunk = inf_text_chunk_substring(
priv->chunk,
split_pos,
inf_text_chunk_get_length(priv->chunk) - split_pos
);
first = g_object_new(
INF_TEXT_TYPE_DEFAULT_DELETE_OPERATION,
"position", priv->position,
"chunk", first_chunk,
NULL
);
second = g_object_new(
INF_TEXT_TYPE_DEFAULT_DELETE_OPERATION,
"position", priv->position + split_pos + split_len,
"chunk", second_chunk,
NULL
);
inf_text_chunk_free(first_chunk);
inf_text_chunk_free(second_chunk);
result = inf_adopted_split_operation_new(
INF_ADOPTED_OPERATION(first),
INF_ADOPTED_OPERATION(second)
);
g_object_unref(first);
g_object_unref(second);
return result;
}
static InfTextDeleteOperation*
inf_text_remote_delete_operation_transform_overlap(
InfTextDeleteOperation* operation,
InfTextDeleteOperation* other,
guint position,
guint begin,
guint other_begin,
guint length)
{
InfTextRemoteDeleteOperationPrivate* priv;
InfTextChunk* chunk;
GObject* result;
InfTextRemoteDeleteOperationPrivate* result_priv;
/* It is actually possible that two remote delete operations are
* transformed against each other (actually the parts of a splitted
* remote delete operation). However, they must not overlap. */
g_assert(INF_TEXT_IS_DEFAULT_DELETE_OPERATION(other));
priv = INF_TEXT_REMOTE_DELETE_OPERATION_PRIVATE(operation);
chunk = inf_text_chunk_substring(
inf_text_default_delete_operation_get_chunk(
INF_TEXT_DEFAULT_DELETE_OPERATION(other)
),
other_begin,
length
);
result = g_object_new(
INF_TEXT_TYPE_REMOTE_DELETE_OPERATION,
"position", position,
"length", priv->length - length,
NULL
);
result_priv = INF_TEXT_REMOTE_DELETE_OPERATION_PRIVATE(result);
result_priv->recon = inf_text_remote_delete_operation_recon_feed(
priv->recon,
begin,
chunk
);
inf_text_chunk_free(chunk);
result_priv->recon_offset = priv->recon_offset;
return INF_TEXT_DELETE_OPERATION(result);
}
int main()
{
InfTextChunk* chunk;
InfTextChunk* chunk2;
chunk2 = inf_text_chunk_new("UTF-8");
inf_text_chunk_insert_text(chunk2, 0, "a", 1, 1, 500);
inf_text_chunk_insert_text(chunk2, 0, "b", 1, 1, 501);
inf_text_chunk_insert_text(chunk2, 0, "c", 1, 1, 502);
inf_text_chunk_insert_text(chunk2, 3, "ü", 2, 1, 503);
chunk = inf_text_chunk_substring(chunk2, 0, 3);
inf_text_chunk_free(chunk);
inf_text_chunk_free(chunk2);
return 0;
}
