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/* gtkcelleditable.c
* Copyright (C) 2000 Red Hat, Inc., Jonathan Blandford <jrb@redhat.com>
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Library General Public
* License as published by the Free Software Foundation; either
* version 2 of the License, or (at your option) any later version.
*
* This library is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
* Library General Public License for more details.
*
* You should have received a copy of the GNU Library General Public
* License along with this library. If not, see <http://www.gnu.org/licenses/>.
*/
/**
* GtkCellEditable:
*
* Interface for widgets that can be used for editing cells
*
* The `GtkCellEditable` interface must be implemented for widgets to be usable
* to edit the contents of a `GtkTreeView` cell. It provides a way to specify how
* temporary widgets should be configured for editing, get the new value, etc.
*/
#include "config.h"
#include "gtkcelleditable.h"
#include "gtkmarshalers.h"
#include "gtkprivate.h"
typedef GtkCellEditableIface GtkCellEditableInterface;
G_DEFINE_INTERFACE(GtkCellEditable, gtk_cell_editable, GTK_TYPE_WIDGET)
static void
gtk_cell_editable_default_init (GtkCellEditableInterface *iface)
{
/**
* GtkCellEditable:editing-canceled:
*
* Indicates whether editing on the cell has been canceled.
*/
g_object_interface_install_property (iface,
g_param_spec_boolean ("editing-canceled", NULL, NULL,
FALSE,
GTK_PARAM_READWRITE|G_PARAM_EXPLICIT_NOTIFY));
/**
* GtkCellEditable::editing-done:
* @cell_editable: the object on which the signal was emitted
*
* This signal is a sign for the cell renderer to update its
* value from the @cell_editable.
*
* Implementations of `GtkCellEditable` are responsible for
* emitting this signal when they are done editing, e.g.
* `GtkEntry` emits this signal when the user presses Enter. Typical things to
* do in a handler for ::editing-done are to capture the edited value,
* disconnect the @cell_editable from signals on the `GtkCellRenderer`, etc.
*
* gtk_cell_editable_editing_done() is a convenience method
* for emitting `GtkCellEditable::editing-done`.
*/
g_signal_new (I_("editing-done"),
GTK_TYPE_CELL_EDITABLE,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkCellEditableIface, editing_done),
NULL, NULL,
NULL,
G_TYPE_NONE, 0);
/**
* GtkCellEditable::remove-widget:
* @cell_editable: the object on which the signal was emitted
*
* This signal is meant to indicate that the cell is finished
* editing, and the @cell_editable widget is being removed and may
* subsequently be destroyed.
*
* Implementations of `GtkCellEditable` are responsible for
* emitting this signal when they are done editing. It must
* be emitted after the `GtkCellEditable::editing-done` signal,
* to give the cell renderer a chance to update the cell's value
* before the widget is removed.
*
* gtk_cell_editable_remove_widget() is a convenience method
* for emitting `GtkCellEditable::remove-widget`.
*/
g_signal_new (I_("remove-widget"),
GTK_TYPE_CELL_EDITABLE,
G_SIGNAL_RUN_LAST,
G_STRUCT_OFFSET (GtkCellEditableIface, remove_widget),
NULL, NULL,
NULL,
G_TYPE_NONE, 0);
}
/**
* gtk_cell_editable_start_editing:
* @cell_editable: A `GtkCellEditable`
* @event: (nullable): The `GdkEvent` that began the editing process, or
* %NULL if editing was initiated programmatically
*
* Begins editing on a @cell_editable.
*
* The `GtkCellRenderer` for the cell creates and returns a `GtkCellEditable` from
* gtk_cell_renderer_start_editing(), configured for the `GtkCellRenderer` type.
*
* gtk_cell_editable_start_editing() can then set up @cell_editable suitably for
* editing a cell, e.g. making the Esc key emit `GtkCellEditable::editing-done`.
*
* Note that the @cell_editable is created on-demand for the current edit; its
* lifetime is temporary and does not persist across other edits and/or cells.
**/
void
gtk_cell_editable_start_editing (GtkCellEditable *cell_editable,
GdkEvent *event)
{
g_return_if_fail (GTK_IS_CELL_EDITABLE (cell_editable));
(* GTK_CELL_EDITABLE_GET_IFACE (cell_editable)->start_editing) (cell_editable, event);
}
/**
* gtk_cell_editable_editing_done:
* @cell_editable: A `GtkCellEditable`
*
* Emits the `GtkCellEditable::editing-done` signal.
*/
void
gtk_cell_editable_editing_done (GtkCellEditable *cell_editable)
{
g_return_if_fail (GTK_IS_CELL_EDITABLE (cell_editable));
g_signal_emit_by_name (cell_editable, "editing-done");
}
/**
* gtk_cell_editable_remove_widget:
* @cell_editable: A `GtkCellEditable`
*
* Emits the `GtkCellEditable::remove-widget` signal.
**/
void
gtk_cell_editable_remove_widget (GtkCellEditable *cell_editable)
{
g_return_if_fail (GTK_IS_CELL_EDITABLE (cell_editable));
g_signal_emit_by_name (cell_editable, "remove-widget");
}
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