Top |
Functions
Properties
gboolean | activate-on-single-click | Read / Write |
GtkSelectionMode | selection-mode | Read / Write |
Signals
void | activate-cursor-row | Action |
void | move-cursor | Action |
void | row-activated | Run Last |
void | row-selected | Run Last |
void | toggle-cursor-row | Action |
void | activate | Action |
Types and Values
struct | GtkListBox |
struct | GtkListBoxClass |
struct | GtkListBoxRow |
struct | GtkListBoxRowClass |
Object Hierarchy
GObject ╰── GInitiallyUnowned ╰── GtkWidget ╰── GtkContainer ├── GtkBin │ ╰── GtkListBoxRow ╰── GtkListBox
Implemented Interfaces
GtkListBox implements AtkImplementorIface and GtkBuildable.
GtkListBoxRow implements AtkImplementorIface and GtkBuildable.
Description
A GtkListBox is a vertical container that contains GtkListBoxRow children. These rows can by dynamically sorted and filtered, and headers can be added dynamically depending on the row content. It also allows keyboard and mouse navigation and selection like a typical list.
Using GtkListBox is often an alternative to GtkTreeView, especially when the list contents has a more complicated layout than what is allowed by a GtkCellRenderer, or when the contents is interactive (i.e. has a button in it).
Although a GtkListBox must have only GtkListBoxRow children you can
add any kind of widget to it via gtk_container_add()
, and a GtkListBoxRow
widget will automatically be inserted between the list and the widget.
The GtkListBox widget was added in GTK+ 3.10.
Functions
GtkListBoxFilterFunc ()
gboolean (*GtkListBoxFilterFunc) (GtkListBoxRow *row
,gpointer user_data
);
Will be called whenever the row changes or is added and lets you control if the row should be visible or not.
Since 3.10
GtkListBoxSortFunc ()
gint (*GtkListBoxSortFunc) (GtkListBoxRow *row1
,GtkListBoxRow *row2
,gpointer user_data
);
Compare two rows to determine which should be first.
Since 3.10
GtkListBoxUpdateHeaderFunc ()
void (*GtkListBoxUpdateHeaderFunc) (GtkListBoxRow *row
,GtkListBoxRow *before
,gpointer user_data
);
Whenever row
changes or which row is before row
changes this
is called, which lets you update the header on row
. You may
remove or set a new one via gtk_list_box_row_set_header()
or
just change the state of the current header widget.
Parameters
row |
the row to update |
|
before |
the row before |
[allow-none] |
user_data |
user data. |
[closure] |
Since 3.10
gtk_list_box_new ()
GtkWidget *
gtk_list_box_new (void
);
Creates a new GtkListBox container.
Since 3.10
gtk_list_box_prepend ()
void gtk_list_box_prepend (GtkListBox *list_box
,GtkWidget *child
);
Prepend a widget to the list. If a sort function is set, the widget will
actually be inserted at the calculated position and this function has the
same effect of gtk_container_add()
.
Since 3.10
gtk_list_box_insert ()
void gtk_list_box_insert (GtkListBox *list_box
,GtkWidget *child
,gint position
);
Insert the child
into the list_box
at position
. If a sort function is
set, the widget will actually be inserted at the calculated position and
this function has the same effect of gtk_container_add()
.
If position
is -1, or larger than the total number of items in the
list_box
, then the child
will be appended to the end.
Parameters
list_box |
a GtkListBox. |
|
child |
the GtkWidget to add |
|
position |
the position to insert |
Since 3.10
gtk_list_box_select_row ()
void gtk_list_box_select_row (GtkListBox *list_box
,GtkListBoxRow *row
);
Make row
the currently selected row.
Since 3.10
gtk_list_box_get_selected_row ()
GtkListBoxRow *
gtk_list_box_get_selected_row (GtkListBox *list_box
);
Gets the selected row.
Since 3.10
gtk_list_box_set_selection_mode ()
void gtk_list_box_set_selection_mode (GtkListBox *list_box
,GtkSelectionMode mode
);
Sets how selection works in the listbox. See GtkSelectionMode for details.
Note: GtkListBox does not support GTK_SELECTION_MULTIPLE
.
Since 3.10
gtk_list_box_get_selection_mode ()
GtkSelectionMode
gtk_list_box_get_selection_mode (GtkListBox *list_box
);
Gets the selection mode of the listbox.
Since 3.10
gtk_list_box_set_activate_on_single_click ()
void gtk_list_box_set_activate_on_single_click (GtkListBox *list_box
,gboolean single
);
If single
is TRUE
, rows will be activated when you click on them,
otherwise you need to double-click.
Since 3.10
gtk_list_box_get_activate_on_single_click ()
gboolean
gtk_list_box_get_activate_on_single_click
(GtkListBox *list_box
);
Returns whether rows activate on single clicks.
Since 3.10
gtk_list_box_get_adjustment ()
GtkAdjustment *
gtk_list_box_get_adjustment (GtkListBox *list_box
);
Gets the adjustment (if any) that the widget uses to for vertical scrolling.
Since 3.10
gtk_list_box_set_adjustment ()
void gtk_list_box_set_adjustment (GtkListBox *list_box
,GtkAdjustment *adjustment
);
Sets the adjustment (if any) that the widget uses to for vertical scrolling. For instance, this is used to get the page size for PageUp/Down key handling.
In the normal case when the list_box
is packed inside
a GtkScrolledWindow the adjustment from that will
be picked up automatically, so there is no need
to manually do that.
Since 3.10
gtk_list_box_set_placeholder ()
void gtk_list_box_set_placeholder (GtkListBox *list_box
,GtkWidget *placeholder
);
Sets the placeholder widget that is shown in the list when it doesn’t display any visible children.
Since 3.10
gtk_list_box_get_row_at_index ()
GtkListBoxRow * gtk_list_box_get_row_at_index (GtkListBox *list_box
,gint index_
);
Gets the n:th child in the list (not counting headers).
If _index
is negative or larger than the number of items in the
list, NULL
is returned.
Since 3.10
gtk_list_box_get_row_at_y ()
GtkListBoxRow * gtk_list_box_get_row_at_y (GtkListBox *list_box
,gint y
);
Gets the row at the y
position.
Since 3.10
gtk_list_box_invalidate_filter ()
void
gtk_list_box_invalidate_filter (GtkListBox *list_box
);
Update the filtering for all rows. Call this when result
of the filter function on the list_box
is changed due
to an external factor. For instance, this would be used
if the filter function just looked for a specific search
string and the entry with the search string has changed.
Since 3.10
gtk_list_box_invalidate_headers ()
void
gtk_list_box_invalidate_headers (GtkListBox *list_box
);
Update the separators for all rows. Call this when result
of the header function on the list_box
is changed due
to an external factor.
Since 3.10
gtk_list_box_invalidate_sort ()
void
gtk_list_box_invalidate_sort (GtkListBox *list_box
);
Update the sorting for all rows. Call this when result
of the sort function on the list_box
is changed due
to an external factor.
Since 3.10
gtk_list_box_set_filter_func ()
void gtk_list_box_set_filter_func (GtkListBox *list_box
,GtkListBoxFilterFunc filter_func
,gpointer user_data
,GDestroyNotify destroy
);
By setting a filter function on the list_box
one can decide dynamically which
of the rows to show. For instance, to implement a search function on a list that
filters the original list to only show the matching rows.
The filter_func
will be called for each row after the call, and it will
continue to be called each time a row changes (via gtk_list_box_row_changed()
) or
when gtk_list_box_invalidate_filter()
is called.
Parameters
list_box |
||
filter_func |
callback that lets you filter which rows to show. |
[closure user_data][allow-none] |
user_data |
user data passed to |
|
destroy |
destroy notifier for |
Since 3.10
gtk_list_box_set_header_func ()
void gtk_list_box_set_header_func (GtkListBox *list_box
,GtkListBoxUpdateHeaderFunc update_header
,gpointer user_data
,GDestroyNotify destroy
);
By setting a header function on the list_box
one can dynamically add headers
in front of rows, depending on the contents of the row and its position in the list.
For instance, one could use it to add headers in front of the first item of a
new kind, in a list sorted by the kind.
The update_header
can look at the current header widget using gtk_list_box_row_get_header()
and either update the state of the widget as needed, or set a new one using
gtk_list_box_row_set_header()
. If no header is needed, set the header to NULL
.
Note that you may get many calls update_header
to this for a particular row when e.g.
changing things that don’t affect the header. In this case it is important for performance
to not blindly replace an exisiting header widh an identical one.
The update_header
function will be called for each row after the call, and it will
continue to be called each time a row changes (via gtk_list_box_row_changed()
) and when
the row before changes (either by gtk_list_box_row_changed()
on the previous row, or when
the previous row becomes a different row). It is also called for all rows when
gtk_list_box_invalidate_headers()
is called.
Parameters
list_box |
||
update_header |
callback that lets you add row headers. |
[closure user_data][allow-none] |
user_data |
user data passed to |
|
destroy |
destroy notifier for |
Since 3.10
gtk_list_box_set_sort_func ()
void gtk_list_box_set_sort_func (GtkListBox *list_box
,GtkListBoxSortFunc sort_func
,gpointer user_data
,GDestroyNotify destroy
);
By setting a sort function on the list_box
one can dynamically reorder the rows
of the list, based on the contents of the rows.
The sort_func
will be called for each row after the call, and will continue to
be called each time a row changes (via gtk_list_box_row_changed()
) and when
gtk_list_box_invalidate_sort()
is called.
Parameters
list_box |
||
sort_func |
the sort function. |
[closure user_data][allow-none] |
user_data |
user data passed to |
|
destroy |
destroy notifier for |
Since 3.10
gtk_list_box_drag_highlight_row ()
void gtk_list_box_drag_highlight_row (GtkListBox *list_box
,GtkListBoxRow *row
);
This is a helper function for implementing DnD onto a GtkListBox.
The passed in row
will be highlighted via gtk_drag_highlight()
,
and any previously highlighted row will be unhighlighted.
The row will also be unhighlighted when the widget gets a drag leave event.
Since 3.10
gtk_list_box_drag_unhighlight_row ()
void
gtk_list_box_drag_unhighlight_row (GtkListBox *list_box
);
If a row has previously been highlighted via gtk_list_box_drag_highlight_row()
it will have the highlight removed.
Since 3.10
gtk_list_box_row_new ()
GtkWidget *
gtk_list_box_row_new (void
);
Creates a new GtkListBoxRow, to be used as a child of a GtkListBox.
Since 3.10
gtk_list_box_row_changed ()
void
gtk_list_box_row_changed (GtkListBoxRow *row
);
Marks row
as changed, causing any state that depends on this
to be updated. This affects sorting, filtering and headers.
Note that calls to this method must be in sync with the data
used for the row functions. For instance, if the list is
mirroring some external data set, and *two* rows changed in the
external data set then when you call gtk_list_box_row_changed()
on the first row the sort function must only read the new data
for the first of the two changed rows, otherwise the resorting
of the rows will be wrong.
This generally means that if you don’t fully control the data
model you have to duplicate the data that affects the listbox
row functions into the row widgets themselves. Another alternative
is to call gtk_list_box_invalidate_sort()
on any model change,
but that is more expensive.
Since 3.10
gtk_list_box_row_get_header ()
GtkWidget *
gtk_list_box_row_get_header (GtkListBoxRow *row
);
Returns the current header of the row
. This can be used
in a GtkListBoxUpdateHeaderFunc to see if there is a header
set already, and if so to update the state of it.
Since 3.10
gtk_list_box_row_set_header ()
void gtk_list_box_row_set_header (GtkListBoxRow *row
,GtkWidget *header
);
Sets the current header of the row
. This is only allowed to be called
from a GtkListBoxUpdateHeaderFunc. It will replace any existing
header in the row, and be shown in front of the row in the listbox.
Since 3.10
gtk_list_box_row_get_index ()
gint
gtk_list_box_row_get_index (GtkListBoxRow *row
);
Gets the current index of the row
in its GtkListBox container.
Since 3.10
Types and Values
struct GtkListBoxClass
struct GtkListBoxClass { GtkContainerClass parent_class; void (*row_selected) (GtkListBox *list_box, GtkListBoxRow *row); void (*row_activated) (GtkListBox *list_box, GtkListBoxRow *row); void (*activate_cursor_row) (GtkListBox *list_box); void (*toggle_cursor_row) (GtkListBox *list_box); void (*move_cursor) (GtkListBox *list_box, GtkMovementStep step, gint count); };
Members
GtkContainerClass |
The parent class. |
|
Signal emitted when a new row is selected. |
||
Signal emitted when a row has been activated by the user. |
||
Property Details
The “activate-on-single-click”
property
“activate-on-single-click” gboolean
Activate row on a single click.
Flags: Read / Write
Default value: TRUE
The “selection-mode”
property
“selection-mode” GtkSelectionMode
The selection mode.
Flags: Read / Write
Default value: GTK_SELECTION_SINGLE
Signal Details
The “activate-cursor-row”
signal
void user_function (GtkListBox *listbox, gpointer user_data)
Flags: Action
The “move-cursor”
signal
void user_function (GtkListBox *listbox, GtkMovementStep arg1, gint arg2, gpointer user_data)
Flags: Action
The “row-activated”
signal
void user_function (GtkListBox *list_box, GtkListBoxRow *row, gpointer user_data)
The ::row-activated signal is emitted when a row has been activated by the user.
Parameters
list_box |
the GtkListBox |
|
row |
the activated row |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run Last
Since 3.10
The “row-selected”
signal
void user_function (GtkListBox *list_box, GtkListBoxRow *row, gpointer user_data)
The ::row-selected signal is emitted when a new row is selected, or
(with a NULL
row
) when the selection is cleared.
Parameters
list_box |
the GtkListBox |
|
row |
the selected row |
|
user_data |
user data set when the signal handler was connected. |
Flags: Run Last
Since 3.10
The “toggle-cursor-row”
signal
void user_function (GtkListBox *listbox, gpointer user_data)
Flags: Action
The “activate”
signal
void user_function (GtkListBoxRow *listboxrow, gpointer user_data)
Flags: Action