GtkTreeStore
GtkTreeStore — A tree-like data structure that can be used with the GtkTreeView
Functions
GtkTreeStore * | gtk_tree_store_new () |
GtkTreeStore * | gtk_tree_store_newv () |
void | gtk_tree_store_set_column_types () |
void | gtk_tree_store_set_value () |
void | gtk_tree_store_set () |
void | gtk_tree_store_set_valist () |
void | gtk_tree_store_set_valuesv () |
gboolean | gtk_tree_store_remove () |
void | gtk_tree_store_insert () |
void | gtk_tree_store_insert_before () |
void | gtk_tree_store_insert_after () |
void | gtk_tree_store_insert_with_values () |
void | gtk_tree_store_insert_with_valuesv () |
void | gtk_tree_store_prepend () |
void | gtk_tree_store_append () |
gboolean | gtk_tree_store_is_ancestor () |
gint | gtk_tree_store_iter_depth () |
void | gtk_tree_store_clear () |
gboolean | gtk_tree_store_iter_is_valid () |
void | gtk_tree_store_reorder () |
void | gtk_tree_store_swap () |
void | gtk_tree_store_move_before () |
void | gtk_tree_store_move_after () |
Types and Values
struct | GtkTreeStore |
Object Hierarchy
GObject ╰── GtkTreeStore
Implemented Interfaces
GtkTreeStore implements GtkTreeModel, GtkTreeDragSource, GtkTreeDragDest, GtkTreeSortable and GtkBuildable.
Includes
#include <gtk/gtk.h>
Description
The GtkTreeStore object is a list model for use with a GtkTreeView widget. It implements the GtkTreeModel interface, and consequentially, can use all of the methods available there. It also implements the GtkTreeSortable interface so it can be sorted by the view. Finally, it also implements the tree drag and drop interfaces.
GtkTreeStore as GtkBuildable
The GtkTreeStore implementation of the GtkBuildable interface allows to specify the model columns with a <columns> element that may contain multiple <column> elements, each specifying one model column. The “type” attribute specifies the data type for the column.
An example of a UI Definition fragment for a tree store:
Functions
gtk_tree_store_new ()
GtkTreeStore * gtk_tree_store_new (gint n_columns
,...
);
Creates a new tree store as with n_columns
columns each of the types passed in. Note that only types derived from standard GObject fundamental types are supported.
As an example, gtk_tree_store_new (3, G_TYPE_INT, G_TYPE_STRING,
GDK_TYPE_PIXBUF);
will create a new GtkTreeStore with three columns, of type gint, gchararray, and GdkPixbuf respectively.
Parameters
n_columns | number of columns in the tree store | |
... | all GType types for the columns, from first to last |
Returns
a new GtkTreeStore
gtk_tree_store_newv ()
GtkTreeStore * gtk_tree_store_newv (gint n_columns
,GType *types
);
Non vararg creation function. Used primarily by language bindings.
[rename-to gtk_tree_store_new]
Parameters
n_columns | number of columns in the tree store | |
types | an array of GType types for the columns, from first to last. | [array length=n_columns] |
gtk_tree_store_set_column_types ()
void gtk_tree_store_set_column_types (GtkTreeStore *tree_store
,gint n_columns
,GType *types
);
This function is meant primarily for GObjects that inherit from GtkTreeStore, and should only be used when constructing a new GtkTreeStore. It will not function after a row has been added, or a method on the GtkTreeModel interface is called.
Parameters
tree_store | ||
n_columns | Number of columns for the tree store | |
types | An array of GType types, one for each column. | [array length=n_columns] |
gtk_tree_store_set_value ()
void gtk_tree_store_set_value (GtkTreeStore *tree_store
,GtkTreeIter *iter
,gint column
,GValue *value
);
Sets the data in the cell specified by iter
and column
. The type of value
must be convertible to the type of the column.
Parameters
tree_store | ||
iter | A valid GtkTreeIter for the row being modified | |
column | column number to modify | |
value | new value for the cell |
gtk_tree_store_set ()
void gtk_tree_store_set (GtkTreeStore *tree_store
,GtkTreeIter *iter
,...
);
Sets the value of one or more cells in the row referenced by iter
. The variable argument list should contain integer column numbers, each column number followed by the value to be set. The list is terminated by a -1. For example, to set column 0 with type G_TYPE_STRING
to “Foo”, you would write gtk_tree_store_set (store, iter, 0, "Foo", -1)
.
The value will be referenced by the store if it is a G_TYPE_OBJECT
, and it will be copied if it is a G_TYPE_STRING
or G_TYPE_BOXED
.
Parameters
tree_store | ||
iter | A valid GtkTreeIter for the row being modified | |
... | pairs of column number and value, terminated with -1 |
gtk_tree_store_set_valist ()
void gtk_tree_store_set_valist (GtkTreeStore *tree_store
,GtkTreeIter *iter
,va_list var_args
);
See gtk_tree_store_set()
; this version takes a va_list for use by language bindings.
Parameters
tree_store | ||
iter | A valid GtkTreeIter for the row being modified | |
var_args | va_list of column/value pairs |
gtk_tree_store_set_valuesv ()
void gtk_tree_store_set_valuesv (GtkTreeStore *tree_store
,GtkTreeIter *iter
,gint *columns
,GValue *values
,gint n_values
);
A variant of gtk_tree_store_set_valist()
which takes the columns and values as two arrays, instead of varargs. This function is mainly intended for language bindings or in case the number of columns to change is not known until run-time.
[rename-to gtk_tree_store_set]
Parameters
tree_store | ||
iter | A valid GtkTreeIter for the row being modified | |
columns | an array of column numbers. | [array length=n_values] |
values | an array of GValues. | [array length=n_values] |
n_values | the length of the |
Since: 2.12
gtk_tree_store_remove ()
gboolean gtk_tree_store_remove (GtkTreeStore *tree_store
,GtkTreeIter *iter
);
Removes iter
from tree_store
. After being removed, iter
is set to the next valid row at that level, or invalidated if it previously pointed to the last one.
Parameters
tree_store | ||
iter | A valid GtkTreeIter |
Returns
TRUE
if iter
is still valid, FALSE
if not.
gtk_tree_store_insert ()
void gtk_tree_store_insert (GtkTreeStore *tree_store
,GtkTreeIter *iter
,GtkTreeIter *parent
,gint position
);
Creates a new row at position
. If parent is non-NULL
, then the row will be made a child of parent
. Otherwise, the row will be created at the toplevel. If position
is -1 or is larger than the number of rows at that level, then the new row will be inserted to the end of the list. iter
will be changed to point to this new row. The row will be empty after this function is called. To fill in values, you need to call gtk_tree_store_set()
or gtk_tree_store_set_value()
.
Parameters
tree_store | ||
iter | An unset GtkTreeIter to set to the new row. | [out] |
parent | A valid GtkTreeIter, or | [allow-none] |
position | position to insert the new row, or -1 for last |
gtk_tree_store_insert_before ()
void gtk_tree_store_insert_before (GtkTreeStore *tree_store
,GtkTreeIter *iter
,GtkTreeIter *parent
,GtkTreeIter *sibling
);
Inserts a new row before sibling
. If sibling
is NULL
, then the row will be appended to parent
’s children. If parent
and sibling
are NULL
, then the row will be appended to the toplevel. If both sibling
and parent
are set, then parent
must be the parent of sibling
. When sibling
is set, parent
is optional.
iter
will be changed to point to this new row. The row will be empty after this function is called. To fill in values, you need to call gtk_tree_store_set()
or gtk_tree_store_set_value()
.
Parameters
tree_store | ||
iter | An unset GtkTreeIter to set to the new row. | [out] |
parent | A valid GtkTreeIter, or | [allow-none] |
sibling | A valid GtkTreeIter, or | [allow-none] |
gtk_tree_store_insert_after ()
void gtk_tree_store_insert_after (GtkTreeStore *tree_store
,GtkTreeIter *iter
,GtkTreeIter *parent
,GtkTreeIter *sibling
);
Inserts a new row after sibling
. If sibling
is NULL
, then the row will be prepended to parent
’s children. If parent
and sibling
are NULL
, then the row will be prepended to the toplevel. If both sibling
and parent
are set, then parent
must be the parent of sibling
. When sibling
is set, parent
is optional.
iter
will be changed to point to this new row. The row will be empty after this function is called. To fill in values, you need to call gtk_tree_store_set()
or gtk_tree_store_set_value()
.
Parameters
tree_store | ||
iter | An unset GtkTreeIter to set to the new row. | [out] |
parent | A valid GtkTreeIter, or | [allow-none] |
sibling | A valid GtkTreeIter, or | [allow-none] |
gtk_tree_store_insert_with_values ()
void gtk_tree_store_insert_with_values (GtkTreeStore *tree_store
,GtkTreeIter *iter
,GtkTreeIter *parent
,gint position
,...
);
Creates a new row at position
. iter
will be changed to point to this new row. If position
is -1, or larger than the number of rows on the list, then the new row will be appended to the list. The row will be filled with the values given to this function.
Calling gtk_tree_store_insert_with_values (tree_store, iter, position, ...)
has the same effect as calling
<object class="GtkTreeStore"> <columns> <column type="gchararray"/> <column type="gchararray"/> <column type="gint"/> </columns> </object>
with the different that the former will only emit a row_inserted signal, while the latter will emit row_inserted, row_changed and if the tree store is sorted, rows_reordered. Since emitting the rows_reordered signal repeatedly can affect the performance of the program, gtk_tree_store_insert_with_values()
should generally be preferred when inserting rows in a sorted tree store.
Parameters
tree_store | ||
iter | An unset GtkTreeIter to set the new row, or | [out][allow-none] |
parent | A valid GtkTreeIter, or | [allow-none] |
position | position to insert the new row, or -1 to append after existing rows | |
... | pairs of column number and value, terminated with -1 |
Since: 2.10
gtk_tree_store_insert_with_valuesv ()
void gtk_tree_store_insert_with_valuesv (GtkTreeStore *tree_store
,GtkTreeIter *iter
,GtkTreeIter *parent
,gint position
,gint *columns
,GValue *values
,gint n_values
);
A variant of gtk_tree_store_insert_with_values()
which takes the columns and values as two arrays, instead of varargs. This function is mainly intended for language bindings.
[rename-to gtk_tree_store_insert_with_values]
Parameters
tree_store | ||
iter | An unset GtkTreeIter to set the new row, or | [out][allow-none] |
parent | A valid GtkTreeIter, or | [allow-none] |
position | position to insert the new row, or -1 for last | |
columns | an array of column numbers. | [array length=n_values] |
values | an array of GValues. | [array length=n_values] |
n_values | the length of the |
Since: 2.10
gtk_tree_store_prepend ()
void gtk_tree_store_prepend (GtkTreeStore *tree_store
,GtkTreeIter *iter
,GtkTreeIter *parent
);
Prepends a new row to tree_store
. If parent
is non-NULL
, then it will prepend the new row before the first child of parent
, otherwise it will prepend a row to the top level. iter
will be changed to point to this new row. The row will be empty after this function is called. To fill in values, you need to call gtk_tree_store_set()
or gtk_tree_store_set_value()
.
Parameters
tree_store | ||
iter | An unset GtkTreeIter to set to the prepended row. | [out] |
parent | A valid GtkTreeIter, or | [allow-none] |
gtk_tree_store_append ()
void gtk_tree_store_append (GtkTreeStore *tree_store
,GtkTreeIter *iter
,GtkTreeIter *parent
);
Appends a new row to tree_store
. If parent
is non-NULL
, then it will append the new row after the last child of parent
, otherwise it will append a row to the top level. iter
will be changed to point to this new row. The row will be empty after this function is called. To fill in values, you need to call gtk_tree_store_set()
or gtk_tree_store_set_value()
.
Parameters
tree_store | ||
iter | An unset GtkTreeIter to set to the appended row. | [out] |
parent | A valid GtkTreeIter, or | [allow-none] |
gtk_tree_store_is_ancestor ()
gboolean gtk_tree_store_is_ancestor (GtkTreeStore *tree_store
,GtkTreeIter *iter
,GtkTreeIter *descendant
);
Returns TRUE
if iter
is an ancestor of descendant
. That is, iter
is the parent (or grandparent or great-grandparent) of descendant
.
Parameters
tree_store | ||
iter | A valid GtkTreeIter | |
descendant | A valid GtkTreeIter |
Returns
TRUE
, if iter
is an ancestor of descendant
gtk_tree_store_iter_depth ()
gint gtk_tree_store_iter_depth (GtkTreeStore *tree_store
,GtkTreeIter *iter
);
Returns the depth of iter
. This will be 0 for anything on the root level, 1 for anything down a level, etc.
Parameters
tree_store | ||
iter | A valid GtkTreeIter |
Returns
The depth of iter
gtk_tree_store_clear ()
void
gtk_tree_store_clear (GtkTreeStore *tree_store
);
Removes all rows from tree_store
Parameters
tree_store |
gtk_tree_store_iter_is_valid ()
gboolean gtk_tree_store_iter_is_valid (GtkTreeStore *tree_store
,GtkTreeIter *iter
);
WARNING: This function is slow. Only use it for debugging and/or testing purposes.
Checks if the given iter is a valid iter for this GtkTreeStore.
Parameters
tree_store | A GtkTreeStore. | |
iter | A GtkTreeIter. |
Returns
TRUE
if the iter is valid, FALSE
if the iter is invalid.
Since: 2.2
gtk_tree_store_reorder ()
void gtk_tree_store_reorder (GtkTreeStore *tree_store
,GtkTreeIter *parent
,gint *new_order
);
Reorders the children of parent
in tree_store
to follow the order indicated by new_order
. Note that this function only works with unsorted stores.
[skip]
Parameters
tree_store | ||
parent | A GtkTreeIter, or | [nullable] |
new_order | an array of integers mapping the new position of each child to its old position before the re-ordering, i.e. | [array] |
Since: 2.2
gtk_tree_store_swap ()
void gtk_tree_store_swap (GtkTreeStore *tree_store
,GtkTreeIter *a
,GtkTreeIter *b
);
Swaps a
and b
in the same level of tree_store
. Note that this function only works with unsorted stores.
Parameters
tree_store | A GtkTreeStore. | |
a | A GtkTreeIter. | |
b | Another GtkTreeIter. |
Since: 2.2
gtk_tree_store_move_before ()
void gtk_tree_store_move_before (GtkTreeStore *tree_store
,GtkTreeIter *iter
,GtkTreeIter *position
);
Moves iter
in tree_store
to the position before position
. iter
and position
should be in the same level. Note that this function only works with unsorted stores. If position
is NULL
, iter
will be moved to the end of the level.
Parameters
tree_store | A GtkTreeStore. | |
iter | A GtkTreeIter. | |
position | A GtkTreeIter or | [allow-none] |
Since: 2.2
gtk_tree_store_move_after ()
void gtk_tree_store_move_after (GtkTreeStore *tree_store
,GtkTreeIter *iter
,GtkTreeIter *position
);
Moves iter
in tree_store
to the position after position
. iter
and position
should be in the same level. Note that this function only works with unsorted stores. If position
is NULL
, iter
will be moved to the start of the level.
Parameters
tree_store | A GtkTreeStore. | |
iter | A GtkTreeIter. | |
position | A GtkTreeIter. | [allow-none] |
Since: 2.2
Types and Values
struct GtkTreeStore
struct GtkTreeStore;
See Also
© 2005–2020 The GNOME Project
Licensed under the GNU Lesser General Public License version 2.1 or later.
https://developer.gnome.org/gtk3/3.24/GtkTreeStore.html