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| gboolean | (*CtkTreeSelectionFunc) () |
| void | (*CtkTreeSelectionForeachFunc) () |
| void | ctk_tree_selection_set_mode () |
| CtkSelectionMode | ctk_tree_selection_get_mode () |
| void | ctk_tree_selection_set_select_function () |
| CtkTreeSelectionFunc | ctk_tree_selection_get_select_function () |
| gpointer | ctk_tree_selection_get_user_data () |
| CtkTreeView * | ctk_tree_selection_get_tree_view () |
| gboolean | ctk_tree_selection_get_selected () |
| void | ctk_tree_selection_selected_foreach () |
| GList * | ctk_tree_selection_get_selected_rows () |
| gint | ctk_tree_selection_count_selected_rows () |
| void | ctk_tree_selection_select_path () |
| void | ctk_tree_selection_unselect_path () |
| gboolean | ctk_tree_selection_path_is_selected () |
| void | ctk_tree_selection_select_iter () |
| void | ctk_tree_selection_unselect_iter () |
| gboolean | ctk_tree_selection_iter_is_selected () |
| void | ctk_tree_selection_select_all () |
| void | ctk_tree_selection_unselect_all () |
| void | ctk_tree_selection_select_range () |
| void | ctk_tree_selection_unselect_range () |
The CtkTreeSelection object is a helper object to manage the selection for a CtkTreeView widget. The CtkTreeSelection object is automatically created when a new CtkTreeView widget is created, and cannot exist independently of this widget. The primary reason the CtkTreeSelection objects exists is for cleanliness of code and API. That is, there is no conceptual reason all these functions could not be methods on the CtkTreeView widget instead of a separate function.
The CtkTreeSelection object is gotten from a CtkTreeView by calling
ctk_tree_view_get_selection(). It can be manipulated to check the
selection status of the tree, as well as select and deselect individual
rows. Selection is done completely view side. As a result, multiple
views of the same model can have completely different selections.
Additionally, you cannot change the selection of a row on the model that
is not currently displayed by the view without expanding its parents
first.
One of the important things to remember when monitoring the selection of a view is that the “changed” signal is mostly a hint. That is, it may only emit one signal when a range of rows is selected. Additionally, it may on occasion emit a “changed” signal when nothing has happened (mostly as a result of programmers calling select_row on an already selected row).
gboolean (*CtkTreeSelectionFunc) (CtkTreeSelection *selection,CtkTreeModel *model,CtkTreePath *path,gboolean path_currently_selected,gpointer data);
A function used by ctk_tree_selection_set_select_function() to filter
whether or not a row may be selected. It is called whenever a row's
state might change. A return value of TRUE indicates to selection
that it is okay to change the selection.
selection |
||
model |
A CtkTreeModel being viewed |
|
path |
The CtkTreePath of the row in question |
|
path_currently_selected |
|
|
data |
user data. |
[closure] |
void (*CtkTreeSelectionForeachFunc) (CtkTreeModel *model,CtkTreePath *path,CtkTreeIter *iter,gpointer data);
A function used by ctk_tree_selection_selected_foreach() to map all
selected rows. It will be called on every selected row in the view.
model |
The CtkTreeModel being viewed |
|
path |
The CtkTreePath of a selected row |
|
iter |
A CtkTreeIter pointing to a selected row |
|
data |
user data. |
[closure] |
void ctk_tree_selection_set_mode (CtkTreeSelection *selection,CtkSelectionMode type);
Sets the selection mode of the selection
. If the previous type was
CTK_SELECTION_MULTIPLE, then the anchor is kept selected, if it was
previously selected.
CtkSelectionMode
ctk_tree_selection_get_mode (CtkTreeSelection *selection);
Gets the selection mode for selection
. See
ctk_tree_selection_set_mode().
void ctk_tree_selection_set_select_function (CtkTreeSelection *selection,CtkTreeSelectionFunc func,gpointer data,GDestroyNotify destroy);
Sets the selection function.
If set, this function is called before any node is selected or unselected,
giving some control over which nodes are selected. The select function
should return TRUE if the state of the node may be toggled, and FALSE
if the state of the node should be left unchanged.
CtkTreeSelectionFunc
ctk_tree_selection_get_select_function
(CtkTreeSelection *selection);
Returns the current selection function.
[skip]
Since: 2.14
gpointer
ctk_tree_selection_get_user_data (CtkTreeSelection *selection);
Returns the user data for the selection function.
[skip]
CtkTreeView *
ctk_tree_selection_get_tree_view (CtkTreeSelection *selection);
Returns the tree view associated with selection
.
gboolean ctk_tree_selection_get_selected (CtkTreeSelection *selection,CtkTreeModel **model,CtkTreeIter *iter);
Sets iter
to the currently selected node if selection
is set to
CTK_SELECTION_SINGLE or CTK_SELECTION_BROWSE. iter
may be NULL if you
just want to test if selection
has any selected nodes. model
is filled
with the current model as a convenience. This function will not work if you
use selection
is CTK_SELECTION_MULTIPLE.
selection |
||
model |
A pointer to set to the CtkTreeModel, or NULL. |
[out][allow-none][transfer none] |
iter |
The CtkTreeIter, or NULL. |
[out][allow-none] |
void ctk_tree_selection_selected_foreach (CtkTreeSelection *selection,CtkTreeSelectionForeachFunc func,gpointer data);
Calls a function for each selected node. Note that you cannot modify
the tree or selection from within this function. As a result,
ctk_tree_selection_get_selected_rows() might be more useful.
GList * ctk_tree_selection_get_selected_rows (CtkTreeSelection *selection,CtkTreeModel **model);
Creates a list of path of all selected rows. Additionally, if you are
planning on modifying the model after calling this function, you may
want to convert the returned list into a list of CtkTreeRowReferences.
To do this, you can use ctk_tree_row_reference_new().
To free the return value, use:
1 |
g_list_free_full (list, (GDestroyNotify) ctk_tree_path_free); |
selection |
||
model |
A pointer to set to the CtkTreeModel, or |
[out][allow-none][transfer none] |
A GList containing a CtkTreePath for each selected row.
[element-type CtkTreePath][transfer full]
Since: 2.2
gint
ctk_tree_selection_count_selected_rows
(CtkTreeSelection *selection);
Returns the number of rows that have been selected in tree
.
Since: 2.2
void ctk_tree_selection_select_path (CtkTreeSelection *selection,CtkTreePath *path);
Select the row at path
.
void ctk_tree_selection_unselect_path (CtkTreeSelection *selection,CtkTreePath *path);
Unselects the row at path
.
gboolean ctk_tree_selection_path_is_selected (CtkTreeSelection *selection,CtkTreePath *path);
Returns TRUE if the row pointed to by path
is currently selected. If path
does not point to a valid location, FALSE is returned
void ctk_tree_selection_select_iter (CtkTreeSelection *selection,CtkTreeIter *iter);
Selects the specified iterator.
void ctk_tree_selection_unselect_iter (CtkTreeSelection *selection,CtkTreeIter *iter);
Unselects the specified iterator.
gboolean ctk_tree_selection_iter_is_selected (CtkTreeSelection *selection,CtkTreeIter *iter);
Returns TRUE if the row at iter
is currently selected.
void
ctk_tree_selection_select_all (CtkTreeSelection *selection);
Selects all the nodes. selection
must be set to CTK_SELECTION_MULTIPLE
mode.
void
ctk_tree_selection_unselect_all (CtkTreeSelection *selection);
Unselects all the nodes.
void ctk_tree_selection_select_range (CtkTreeSelection *selection,CtkTreePath *start_path,CtkTreePath *end_path);
Selects a range of nodes, determined by start_path
and end_path
inclusive.
selection
must be set to CTK_SELECTION_MULTIPLE mode.
void ctk_tree_selection_unselect_range (CtkTreeSelection *selection,CtkTreePath *start_path,CtkTreePath *end_path);
Unselects a range of nodes, determined by start_path
and end_path
inclusive.
selection |
||
start_path |
The initial node of the range. |
|
end_path |
The initial node of the range. |
Since: 2.2
“mode” property“mode” CtkSelectionMode
Selection mode.
See ctk_tree_selection_set_mode() for more information on this property.
Owner: CtkTreeSelection
Flags: Read / Write
Default value: CTK_SELECTION_SINGLE
Since: 3.2
“changed” signalvoid user_function (CtkTreeSelection *treeselection, gpointer user_data)
Emitted whenever the selection has (possibly) changed. Please note that this signal is mostly a hint. It may only be emitted once when a range of rows are selected, and it may occasionally be emitted when nothing has happened.
treeselection |
the object which received the signal. |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run First