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| Graphics.UI.Gtk.TreeList.TreeModel |
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| Description |
A TreeModel is the abstract base class for
TreeStore and ListStore.
- Most functions are defined in the latter two classes. This module
provides the TreeIter and TreePath objects.
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| Synopsis |
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| Documentation |
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| data TreeModel |
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| class GObjectClass o => TreeModelClass o |
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| castToTreeModel :: GObjectClass obj => obj -> TreeModel |
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| treeModelGetNColumns :: TreeModelClass tm => tm -> IO Int |
| Read the number of columns this TreeModel currently stores.
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| treeModelGetColumnType :: TreeModelClass tm => tm -> Int -> IO TMType |
| Retrieves the type of a specific column.
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| treeModelGetValue :: TreeModelClass tm => tm -> TreeIter -> Int -> IO GenericValue |
| Read the value of at a specific column and Iterator.
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| data TreeModelFlags |
| These flags indicate various properties of a TreeModel. These are
probably not terribly interesting for app developers. See the C documentation
for details.
| | Constructors | | TreeModelItersPersist | | | TreeModelListOnly | |
| | Instances | |
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| treeModelGetFlags :: TreeModelClass tm => tm -> IO [TreeModelFlags] |
| Returns a set of flags supported by this interface. The flags supported
should not change during the lifecycle of the model.
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| newtype TreePath |
| TreePath : a list of indices to specify a subtree or node in the
hierarchical TreeStore database.
| | Constructors | |
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| createTreePath :: Ptr TreePath -> IO TreePath |
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| tree_path_copy :: Ptr TreePath -> IO (Ptr TreePath) |
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| tree_path_free :: Ptr TreePath -> FinalizerPtr TreePath |
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| treePathNew :: IO TreePath |
Create a new TreePath.
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| treePathNewFromString :: String -> IO TreePath |
Turn a String into a TreePath.
- For example, the string "10:4:0" would create a path of depth 3 pointing
to the 11th child of the root node, the 5th child of that 11th child, and the
1st child of that 5th child.
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| treePathNewFromIndicies :: [Int] -> IO TreePath |
| Turn a list of indicies into a TreePath. See treePathNewFromString for
the meaning of these indicies.
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| treePathToString :: TreePath -> IO String |
| Turn a TreePath into a String.
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| treePathNewFirst :: IO TreePath |
Create a TreePath.
- The returned TreePath is an index to the first element.
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| treePathAppendIndex :: TreePath -> Int -> IO () |
| Add an index on the next level. |
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| treePathPrependIndex :: TreePath -> Int -> IO () |
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| treePathGetDepth :: TreePath -> IO Int |
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| treePathGetIndices :: TreePath -> IO [Int] |
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| treePathCopy :: TreePath -> IO TreePath |
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| treePathCompare :: TreePath -> TreePath -> IO Ordering |
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| treePathNext :: TreePath -> IO () |
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| treePathPrev :: TreePath -> IO Bool |
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| treePathUp :: TreePath -> IO Bool |
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| treePathDown :: TreePath -> IO () |
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| treePathIsAncestor |
| :: TreePath | A TreePath | | -> TreePath | A possible descendant | | -> IO Bool | | | Returns True if the second path is a descendant of the first.
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| treePathIsDescendant |
| :: TreePath | A possible descendant | | -> TreePath | A TreePath | | -> IO Bool | | | Returns True if the first path is a descendant of the second.
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| newtype TreeRowReference |
| Tree Row Reference : like a TreePath it points to a subtree or node, but
it is persistent. It identifies the same node (so long as it exists) even
when items are added, removed, or reordered.
| | Constructors | |
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| treeRowReferenceNew :: TreeModelClass tm => tm -> TreePath -> IO TreeRowReference |
| Creates a row reference based on a path. This reference will keep pointing
to the node pointed to by the given path, so long as it exists.
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| treeRowReferenceGetPath :: TreeRowReference -> IO (Maybe TreePath) |
| Returns a path that the row reference currently points to, or Nothing if
the path pointed to is no longer valid.
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| treeRowReferenceValid :: TreeRowReference -> IO Bool |
| Returns True if the reference refers to a current valid path.
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| newtype TreeIter |
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| createTreeIter :: Ptr TreeIter -> IO TreeIter |
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| treeModelGetIter :: TreeModelClass tm => tm -> TreePath -> IO (Maybe TreeIter) |
Turn a TreePath into a
TreeIter.
- Returns Nothing if the tp is invalid.
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| treeModelGetIterFromString :: TreeModelClass tm => tm -> String -> IO (Maybe TreeIter) |
Turn a String into a
TreeIter.
- Returns Nothing if the table is empty.
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| gtk_tree_model_get_iter_from_string :: Ptr TreeModel -> Ptr TreeIter -> Ptr CChar -> IO CInt |
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| treeModelGetIterFirst :: TreeModelClass tm => tm -> IO (Maybe TreeIter) |
Retrieves an TreeIter to the
first entry.
- Returns Nothing if the table is empty.
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| treeModelGetPath :: TreeModelClass tm => tm -> TreeIter -> IO TreePath |
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| treeModelIterNext :: TreeModelClass tm => tm -> TreeIter -> IO Bool |
Advance the iterator to the next element.
- If there is no other element on this hierarchy level, return
False.
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| treeModelIterChildren :: TreeModelClass tm => tm -> TreeIter -> IO (Maybe TreeIter) |
| Retrieve an iterator to the first child.
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| treeModelIterHasChild :: TreeModelClass tm => tm -> TreeIter -> IO Bool |
| Test if this is the last hierarchy level. |
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| treeModelIterNChildren :: TreeModelClass tm => tm -> Maybe TreeIter -> IO Int |
Return the number of children.
- If Nothing is specified for the tm argument, the
function will work on toplevel elements.
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| treeModelIterNthChild :: TreeModelClass tm => tm -> Maybe TreeIter -> Int -> IO (Maybe TreeIter) |
Retrieve the nth child.
- If Nothing is specified for the tm argument, the
function will work on toplevel elements.
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| treeModelIterParent :: TreeModelClass tm => tm -> TreeIter -> IO (Maybe TreeIter) |
| Retrieve the parent of this iterator.
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| treeModelRefNode :: TreeModelClass tm => tm -> TreeIter -> IO () |
| No clue.
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| treeModelUnrefNode :: TreeModelClass tm => tm -> TreeIter -> IO () |
| No clue either.
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| Produced by Haddock version 0.6 |
