diff options
Diffstat (limited to 'libowl/owltreemodelslice.c')
| -rw-r--r-- | libowl/owltreemodelslice.c | 280 |
1 files changed, 280 insertions, 0 deletions
diff --git a/libowl/owltreemodelslice.c b/libowl/owltreemodelslice.c new file mode 100644 index 0000000..356683f --- /dev/null +++ b/libowl/owltreemodelslice.c @@ -0,0 +1,280 @@ +#include <gtk/gtk.h> + +#include "owltreemodelslice.h" + +struct _OwlTreeModelSlicePrivate { + GtkTreeModel *child_model; + GtkTreePath *root; +}; + +#define OWL_TREE_MODEL_SLICE_GET_PRIVATE(obj) (G_TYPE_INSTANCE_GET_PRIVATE ((obj), OWL_TYPE_TREE_MODEL_SLICE, OwlTreeModelSlicePrivate)) + +static void owl_tree_model_slice_tree_model_init (GtkTreeModelIface *iface); + +/* + * Implementation prototypes + */ + +static GtkTreeModelFlags owl_tree_model_slice_get_flags (GtkTreeModel *model); +static gint owl_tree_model_slice_get_n_columns (GtkTreeModel *model); +static GType owl_tree_model_slice_get_column_type (GtkTreeModel *model, gint index); +static gboolean owl_tree_model_slice_get_iter (GtkTreeModel *model, GtkTreeIter *iter, GtkTreePath *path); +// TODO get_path +static void owl_tree_model_slice_get_value (GtkTreeModel *tree_model, GtkTreeIter *iter, gint column, GValue *value); +static gboolean owl_tree_model_slice_iter_next (GtkTreeModel *tree_model, GtkTreeIter *iter); +static gboolean owl_tree_model_slice_iter_children (GtkTreeModel *model, GtkTreeIter *iter, GtkTreeIter *parent); +static gboolean owl_tree_model_slice_iter_has_child (GtkTreeModel *model, GtkTreeIter *iter); +static gint owl_tree_model_slice_iter_n_children (GtkTreeModel *model, GtkTreeIter *iter); +static gboolean owl_tree_model_slice_iter_nth_child (GtkTreeModel *model, GtkTreeIter *iter, GtkTreeIter *parent, gint n); +static gboolean owl_tree_model_slice_iter_parent (GtkTreeModel *model, GtkTreeIter *iter, GtkTreeIter *child); +// TODO ref node +// TODO unref node + +G_DEFINE_TYPE_EXTENDED (OwlTreeModelSlice, + owl_tree_model_slice, + G_TYPE_OBJECT, + 0, + G_IMPLEMENT_INTERFACE (GTK_TYPE_TREE_MODEL, + owl_tree_model_slice_tree_model_init)); + +static void +owl_tree_model_slice_init (OwlTreeModelSlice *slice) +{ + slice->priv = OWL_TREE_MODEL_SLICE_GET_PRIVATE (slice); +} + +static void +owl_tree_model_slice_class_init (OwlTreeModelSliceClass *klass) +{ + g_type_class_add_private (G_OBJECT_CLASS (klass), sizeof (OwlTreeModelSlicePrivate)); +} + +static void +owl_tree_model_slice_tree_model_init (GtkTreeModelIface *iface) +{ + iface->get_flags = owl_tree_model_slice_get_flags; + iface->get_n_columns = owl_tree_model_slice_get_n_columns; + iface->get_column_type = owl_tree_model_slice_get_column_type; + iface->get_iter = owl_tree_model_slice_get_iter; + //iface->get_path = owl_tree_model_slice_get_path; + iface->get_value = owl_tree_model_slice_get_value; + iface->iter_next = owl_tree_model_slice_iter_next; + iface->iter_children = owl_tree_model_slice_iter_children; + iface->iter_has_child = owl_tree_model_slice_iter_has_child; + iface->iter_n_children = owl_tree_model_slice_iter_n_children; + iface->iter_nth_child = owl_tree_model_slice_iter_nth_child; + iface->iter_parent = owl_tree_model_slice_iter_parent; + // iface->ref_node = owl_tree_model_slice_ref_node; + // iface->unref_node = owl_tree_model_slice_unref_node; +} + +static GtkTreeModelFlags +owl_tree_model_slice_get_flags (GtkTreeModel *model) +{ + OwlTreeModelSlice *slice = OWL_TREE_MODEL_SLICE (model); + + g_return_val_if_fail (slice != NULL, 0); + g_return_val_if_fail (slice->priv->child_model != NULL, 0); + + return gtk_tree_model_get_flags (slice->priv->child_model) | GTK_TREE_MODEL_LIST_ONLY; +} + +static gint +owl_tree_model_slice_get_n_columns (GtkTreeModel *model) +{ + OwlTreeModelSlice *slice = OWL_TREE_MODEL_SLICE (model); + + g_return_val_if_fail (slice != NULL, 0); + g_return_val_if_fail (slice->priv->child_model != NULL, 0); + + return gtk_tree_model_get_n_columns (slice->priv->child_model); +} + +static GType +owl_tree_model_slice_get_column_type (GtkTreeModel *model, gint index) +{ + OwlTreeModelSlice *slice = OWL_TREE_MODEL_SLICE (model); + + g_return_val_if_fail (slice != NULL, G_TYPE_INVALID); + g_return_val_if_fail (slice->priv->child_model != NULL, G_TYPE_INVALID); + + return gtk_tree_model_get_column_type (slice->priv->child_model, index); +} + +static GtkTreePath* +convert_to_child (OwlTreeModelSlice *slice, GtkTreePath *path) +{ + GtkTreePath *new_path; + gint depth; + gint *indices; + + g_assert (slice); + g_assert (path); + + if (slice->priv->root == NULL) + return path; + + new_path = gtk_tree_path_copy (slice->priv->root); + depth = gtk_tree_path_get_depth (path); + indices = gtk_tree_path_get_indices (path); + while (depth--) + gtk_tree_path_append_index (new_path, *indices++); + return new_path; +} + +static gboolean +owl_tree_model_slice_get_iter (GtkTreeModel *model, + GtkTreeIter *iter, + GtkTreePath *path) +{ + OwlTreeModelSlice *slice = OWL_TREE_MODEL_SLICE (model); + GtkTreePath *new_path; + + g_return_val_if_fail (slice != NULL, FALSE); + g_return_val_if_fail (slice->priv->child_model != NULL, FALSE); + + new_path = convert_to_child (slice, path); + + return gtk_tree_model_get_iter (slice->priv->child_model, iter, new_path); +} + +static void +owl_tree_model_slice_get_value (GtkTreeModel *model, + GtkTreeIter *iter, + gint column, + GValue *value) +{ + OwlTreeModelSlice *slice = OWL_TREE_MODEL_SLICE (model); + + g_return_if_fail (slice != NULL); + g_return_if_fail (slice->priv->child_model != NULL); + + gtk_tree_model_get_value (slice->priv->child_model, iter, column, value); +} + +static gboolean +owl_tree_model_slice_iter_next (GtkTreeModel *model, + GtkTreeIter *iter) +{ + OwlTreeModelSlice *slice = OWL_TREE_MODEL_SLICE (model); + + g_return_val_if_fail (slice != NULL, FALSE); + g_return_val_if_fail (slice->priv->child_model != NULL, FALSE); + + return gtk_tree_model_iter_next (slice->priv->child_model, iter); +} + +static gboolean +owl_tree_model_slice_iter_children (GtkTreeModel *model, + GtkTreeIter *iter, + GtkTreeIter *parent) +{ + OwlTreeModelSlice *slice = OWL_TREE_MODEL_SLICE (model); + + g_return_val_if_fail (slice != NULL, FALSE); + g_return_val_if_fail (slice->priv->child_model != NULL, FALSE); + + if (parent == NULL) + return gtk_tree_model_get_iter_first (model, iter); + else + return FALSE; +} + +static gboolean +owl_tree_model_slice_iter_has_child (GtkTreeModel *model, + GtkTreeIter *iter) +{ + OwlTreeModelSlice *slice = OWL_TREE_MODEL_SLICE (model); + + g_return_val_if_fail (slice != NULL, FALSE); + g_return_val_if_fail (slice->priv->child_model != NULL, FALSE); + + return FALSE; +} + +static gint +owl_tree_model_slice_iter_n_children (GtkTreeModel *model, + GtkTreeIter *iter) +{ + OwlTreeModelSlice *slice = OWL_TREE_MODEL_SLICE (model); + + g_return_val_if_fail (slice != NULL, 0); + g_return_val_if_fail (slice->priv->child_model != NULL, 0); + + if (iter) { + return 0; + } else { + GtkTreeIter child_iter; + if (!gtk_tree_model_get_iter (slice->priv->child_model, &child_iter, slice->priv->root)) { + g_warning ("Cannot get child iterator"); + return 0; + } + return gtk_tree_model_iter_n_children (slice->priv->child_model, &child_iter); + } +} + + +static gboolean +owl_tree_model_slice_iter_nth_child (GtkTreeModel *model, + GtkTreeIter *iter, + GtkTreeIter *parent, + gint n) +{ + OwlTreeModelSlice *slice = OWL_TREE_MODEL_SLICE (model); + + g_return_val_if_fail (slice != NULL, FALSE); + g_return_val_if_fail (slice->priv->child_model != NULL, FALSE); + + if (parent != NULL) + return FALSE; + else + return gtk_tree_model_iter_nth_child (slice->priv->child_model, iter, parent, n); +} + +static gboolean +owl_tree_model_slice_iter_parent (GtkTreeModel *model, GtkTreeIter *iter, GtkTreeIter *child) +{ + OwlTreeModelSlice *slice = OWL_TREE_MODEL_SLICE (model); + + g_return_val_if_fail (slice != NULL, FALSE); + g_return_val_if_fail (slice->priv->child_model != NULL, FALSE); + + return FALSE; +} + +GtkTreeModel * +owl_tree_model_slice_new (GtkTreeModel *child_model, + GtkTreePath *root) +{ + OwlTreeModelSlice *slice; + + g_return_val_if_fail (child_model != NULL, NULL); + + slice = g_object_new (OWL_TYPE_TREE_MODEL_SLICE, NULL); + + slice->priv->child_model = child_model; + slice->priv->root = root; + + return (GtkTreeModel *)slice; +} + +GtkTreeModel * +gtk_tree_model_slice_get_model (OwlTreeModelSlice *slice) +{ + g_return_val_if_fail (OWL_IS_TREE_MODEL_SLICE (slice), NULL); + + return slice->priv->child_model; +} + + +/* TODO */ +void owl_tree_model_slice_convert_child_iter_to_iter (OwlTreeModelSlice *slice, + GtkTreeIter *slice_iter, + GtkTreeIter *child_iter); +void owl_tree_model_slice_convert_iter_to_child_iter (OwlTreeModelSlice *slice, + GtkTreeIter *child_iter, + GtkTreeIter *slice_iter); +GtkTreePath *owl_tree_model_slice_convert_child_path_to_path (OwlTreeModelSlice *slice, + GtkTreePath *child_path); +GtkTreePath *owl_tree_model_slice_convert_path_to_child_path (OwlTreeModelSlice *slice, + GtkTreePath *slice_path); |