custom-tree-models: Custom GtkTreeModel implementations
In RGtk2: R Bindings for Gtk 2.8.0 and Above

Description Usage Arguments Details Value Note Author(s) See Also

Functions that allow one to implement a custom GtkTreeModel

  gtkTreeIter(id, stamp)
  gtkTreeIterGetId(iter)
  gtkTreeIterSetId(iter, id)
  gtkTreeIterGetStamp(iter)
  gtkTreeIterSetStamp(iter, stamp)

`iter`	The `GtkTreeIter` of a custom model
`id`	The integer code identifying `iter`
`stamp`	The integer code for tracking the version of `iter`

These functions allow one to create and access GtkTreeIter structures when implementing a GtkTreeModel.

gtkTreeIter creates an iter from scratch, given an id and stamp.

gtkTreeIterGetId and gtkTreeIterSetId access the integer that identifies the data element referred to by iter.

gtkTreeIterGetStamp and gtkTreeIterSetStamp access the integer that serves as a version stamp. After the model changes, the model version should be incremented, so that all existing iters are invalidated, as evidenced by their stamp.

For gtkTreeIter, an external pointer to the underlying C structure.

For gtkTreeIterGetId, the integer code identifying the element referred to by iter.

For gtkTreeIterGetStamp, the integer code identifying the version of iter.

These functions are for implementing GtkTreeModels only! Most of the time, one can use one of the implementations included with GTK+ (GtkListStore or GtkTreeStore) or RGtkDataFrame.

Michael Lawrence

gClass

RGtk2 documentation built on Oct. 14, 2021, 5:08 p.m.