1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
|
/* 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/>.
*/
/**
* SECTION:gtkcelleditable
* @Short_description: Interface for widgets that can be used for editing cells
* @Title: GtkCellEditable
* @See_also: #GtkCellRenderer
*
* 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"
#include "gtkintl.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",
P_("Editing Canceled"),
P_("Indicates that editing has been canceled"),
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");
}
|
