static VALUE
rg_runs(VALUE self)
{
GSList* list = _SELF(self)->runs;
VALUE ary = rb_ary_new();
while (list) {
PangoGlyphItem* old_item = (PangoGlyphItem*)list->data;
PangoGlyphItem new_item;
new_item.item = pango_item_copy(old_item->item);
new_item.glyphs = pango_glyph_string_copy(old_item->glyphs);
rb_ary_push(ary, PANGOGLYPHITEM2RVAL(&new_item));
list = list->next;
}
return ary;
}
/**
* pango_item_split:
* @orig: a #PangoItem
* @split_index: byte index of position to split item, relative to the start of the item
* @split_offset: number of chars between start of @orig and @split_index
*
* Modifies @orig to cover only the text after @split_index, and
* returns a new item that covers the text before @split_index that
* used to be in @orig. You can think of @split_index as the length of
* the returned item. @split_index may not be 0, and it may not be
* greater than or equal to the length of @orig (that is, there must
* be at least one byte assigned to each item, you can't create a
* zero-length item). @split_offset is the length of the first item in
* chars, and must be provided because the text used to generate the
* item isn't available, so pango_item_split() can't count the char
* length of the split items itself.
*
* Return value: new item representing text before @split_index
**/
PangoItem*
pango_item_split (PangoItem *orig,
int split_index,
int split_offset)
{
PangoItem *new_item = pango_item_copy (orig);
g_return_val_if_fail (orig != NULL, NULL);
g_return_val_if_fail (orig->length > 0, NULL);
g_return_val_if_fail (split_index > 0, NULL);
g_return_val_if_fail (split_index < orig->length, NULL);
g_return_val_if_fail (split_offset > 0, NULL);
g_return_val_if_fail (split_offset < orig->num_chars, NULL);
new_item->length = split_index;
new_item->num_chars = split_offset;
orig->offset += split_index;
orig->length -= split_index;
orig->num_chars -= split_offset;
return new_item;
}
