qulogic/libgnt
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Make the combobox a tiny bit friendlier.
v2.7.3
2010-07-05, Sadrul Habib Chowdhury
ac8d8a62c098
Make the combobox a tiny bit friendlier.
Pressing the first letter of an item will now jump to that item (and
popup the dropdown first if necessary). Add some API in libgnt in the
process.
/**
* GNT - The GLib Ncurses Toolkit
*
* GNT is the legal property of its developers, whose names are too numerous
* to list here. Please refer to the COPYRIGHT file distributed with this
* source distribution.
*
* This library is free software; you can redistribute it and/or modify
* it under the terms of the GNU General Public License as published by
* the Free Software Foundation; either version 2 of the License, or
* (at your option) any later version.
*
* This program 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 General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02111-1301 USA
*/
#include
"gntinternal.h"
#include
"gntstyle.h"
#include
"gntwindow.h"
#include
<string.h>
struct
_GntWindowPriv
{
GHashTable
*
accels
;
/* key => menuitem-id */
GntWindowFlags
flags
;
};
enum
{
SIG_WORKSPACE_HIDE
,
SIG_WORKSPACE_SHOW
,
SIGS
,
};
static
guint
signals
[
SIGS
]
=
{
0
};
static
GntBoxClass
*
parent_class
=
NULL
;
static
void
(
*
org_destroy
)(
GntWidget
*
widget
);
static
gboolean
show_menu
(
GntBindable
*
bind
,
GList
*
null
)
{
GntWindow
*
win
=
GNT_WINDOW
(
bind
);
if
(
win
->
menu
)
{
GntMenu
*
menu
=
win
->
menu
;
gnt_screen_menu_show
(
menu
);
if
(
menu
->
type
==
GNT_MENU_TOPLEVEL
)
{
GntMenuItem
*
item
;
item
=
g_list_nth_data
(
menu
->
list
,
menu
->
selected
);
if
(
item
&&
gnt_menuitem_get_submenu
(
item
))
{
gnt_widget_activate
(
GNT_WIDGET
(
menu
));
}
}
return
TRUE
;
}
return
FALSE
;
}
static
void
gnt_window_destroy
(
GntWidget
*
widget
)
{
GntWindow
*
window
=
GNT_WINDOW
(
widget
);
if
(
window
->
menu
)
gnt_widget_destroy
(
GNT_WIDGET
(
window
->
menu
));
if
(
window
->
priv
)
{
if
(
window
->
priv
->
accels
)
g_hash_table_destroy
(
window
->
priv
->
accels
);
g_free
(
window
->
priv
);
}
org_destroy
(
widget
);
}
static
void
gnt_window_class_init
(
GntWindowClass
*
klass
)
{
GntBindableClass
*
bindable
=
GNT_BINDABLE_CLASS
(
klass
);
GntWidgetClass
*
wid_class
=
GNT_WIDGET_CLASS
(
klass
);
parent_class
=
GNT_BOX_CLASS
(
klass
);
org_destroy
=
wid_class
->
destroy
;
wid_class
->
destroy
=
gnt_window_destroy
;
signals
[
SIG_WORKSPACE_HIDE
]
=
g_signal_new
(
"workspace-hidden"
,
G_TYPE_FROM_CLASS
(
klass
),
G_SIGNAL_RUN_LAST
,
0
,
NULL
,
NULL
,
g_cclosure_marshal_VOID__VOID
,
G_TYPE_NONE
,
0
);
signals
[
SIG_WORKSPACE_SHOW
]
=
g_signal_new
(
"workspace-shown"
,
G_TYPE_FROM_CLASS
(
klass
),
G_SIGNAL_RUN_LAST
,
0
,
NULL
,
NULL
,
g_cclosure_marshal_VOID__VOID
,
G_TYPE_NONE
,
0
);
gnt_bindable_class_register_action
(
bindable
,
"show-menu"
,
show_menu
,
GNT_KEY_CTRL_O
,
NULL
);
gnt_bindable_register_binding
(
bindable
,
"show-menu"
,
GNT_KEY_F10
,
NULL
);
gnt_style_read_actions
(
G_OBJECT_CLASS_TYPE
(
klass
),
bindable
);
GNTDEBUG
;
}
static
void
gnt_window_init
(
GTypeInstance
*
instance
,
gpointer
class
)
{
GntWidget
*
widget
=
GNT_WIDGET
(
instance
);
GntWindow
*
win
=
GNT_WINDOW
(
widget
);
GNT_WIDGET_UNSET_FLAGS
(
widget
,
GNT_WIDGET_NO_BORDER
|
GNT_WIDGET_NO_SHADOW
);
GNT_WIDGET_SET_FLAGS
(
widget
,
GNT_WIDGET_CAN_TAKE_FOCUS
);
win
->
priv
=
g_new0
(
GntWindowPriv
,
1
);
win
->
priv
->
accels
=
g_hash_table_new_full
(
g_str_hash
,
g_str_equal
,
g_free
,
g_free
);
GNTDEBUG
;
}
/******************************************************************************
* GntWindow API
*****************************************************************************/
GType
gnt_window_get_gtype
(
void
)
{
static
GType
type
=
0
;
if
(
type
==
0
)
{
static
const
GTypeInfo
info
=
{
sizeof
(
GntWindowClass
),
NULL
,
/* base_init */
NULL
,
/* base_finalize */
(
GClassInitFunc
)
gnt_window_class_init
,
NULL
,
/* class_finalize */
NULL
,
/* class_data */
sizeof
(
GntWindow
),
0
,
/* n_preallocs */
gnt_window_init
,
/* instance_init */
NULL
/* value_table */
};
type
=
g_type_register_static
(
GNT_TYPE_BOX
,
"GntWindow"
,
&
info
,
0
);
}
return
type
;
}
GntWidget
*
gnt_window_new
()
{
GntWidget
*
widget
=
g_object_new
(
GNT_TYPE_WINDOW
,
NULL
);
return
widget
;
}
GntWidget
*
gnt_window_box_new
(
gboolean
homo
,
gboolean
vert
)
{
GntWidget
*
wid
=
gnt_window_new
();
GntBox
*
box
=
GNT_BOX
(
wid
);
box
->
homogeneous
=
homo
;
box
->
vertical
=
vert
;
box
->
alignment
=
vert
?
GNT_ALIGN_LEFT
:
GNT_ALIGN_MID
;
return
wid
;
}
void
gnt_window_workspace_hiding
(
GntWindow
*
window
)
{
if
(
window
->
menu
)
gnt_widget_hide
(
GNT_WIDGET
(
window
->
menu
));
g_signal_emit
(
window
,
signals
[
SIG_WORKSPACE_HIDE
],
0
);
}
void
gnt_window_workspace_showing
(
GntWindow
*
window
)
{
g_signal_emit
(
window
,
signals
[
SIG_WORKSPACE_SHOW
],
0
);
}
void
gnt_window_set_menu
(
GntWindow
*
window
,
GntMenu
*
menu
)
{
/* If a menu already existed, then destroy that first. */
const
char
*
name
=
gnt_widget_get_name
(
GNT_WIDGET
(
window
));
if
(
window
->
menu
)
gnt_widget_destroy
(
GNT_WIDGET
(
window
->
menu
));
window
->
menu
=
menu
;
if
(
name
&&
window
->
priv
)
{
if
(
!
gnt_style_read_menu_accels
(
name
,
window
->
priv
->
accels
))
{
g_hash_table_destroy
(
window
->
priv
->
accels
);
window
->
priv
->
accels
=
NULL
;
}
}
}
const
char
*
gnt_window_get_accel_item
(
GntWindow
*
window
,
const
char
*
key
)
{
if
(
window
->
priv
->
accels
)
return
g_hash_table_lookup
(
window
->
priv
->
accels
,
key
);
return
NULL
;
}
void
gnt_window_set_maximize
(
GntWindow
*
window
,
GntWindowFlags
maximize
)
{
if
(
maximize
&
GNT_WINDOW_MAXIMIZE_X
)
window
->
priv
->
flags
|=
GNT_WINDOW_MAXIMIZE_X
;
else
window
->
priv
->
flags
&=
~
GNT_WINDOW_MAXIMIZE_X
;
if
(
maximize
&
GNT_WINDOW_MAXIMIZE_Y
)
window
->
priv
->
flags
|=
GNT_WINDOW_MAXIMIZE_Y
;
else
window
->
priv
->
flags
&=
~
GNT_WINDOW_MAXIMIZE_Y
;
}
GntWindowFlags
gnt_window_get_maximize
(
GntWindow
*
window
)
{
return
(
window
->
priv
->
flags
&
(
GNT_WINDOW_MAXIMIZE_X
|
GNT_WINDOW_MAXIMIZE_Y
));
}