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| Graphics.UI.Gtk.ModelView.TreeDrag | | Portability | portable (depends on GHC) | | Stability | provisional | | Maintainer | gtk2hs-users@lists.sourceforge.net |
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| Description |
| Interfaces for drag-and-drop support in TreeView.
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| Synopsis |
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| Detail
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| TreeViews provide special support for
Drag-and-Drop such as hover-to-open-rows or autoscrolling. This module
implements two utility functions that set and get a path and a model in a
Selection structure. These functions
are thus useful to implement drag-and-drop functionality in a
TreeModel. In fact, they are used as part of
the default drag-and-drop interfaces of
ListStore and
TreeStore that allows to permute rows and move
them between hierarchy levels.
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| Utility functions
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| treeModelEqual :: (TreeModelClass tm1, TreeModelClass tm2) => tm1 -> tm2 -> Bool |
| Compare two tree model for equality.
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| treeGetRowDragData :: SelectionDataM (Maybe (TreeModel, TreePath)) |
| Obtains a TreeModel and a path from SelectionDataM whenever the target name is
GTK_TREE_MODEL_ROW. Normally called from a treeDragDestDragDataReceived handler.
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| treeSetRowDragData :: TreeModelClass treeModel => treeModel -> TreePath -> SelectionDataM Bool |
Sets selection data with the target name GTK_TREE_MODEL_ROW, consisting
of a TreeModel and a TreePath. Normally used in a
treeDragSourceDragDataGet handler.
- Returns True if setting the data was successful.
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| Produced by Haddock version 0.8 |
