qulogic/libgnt

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.
/**
* @file gntmenuitem.h Menuitem API
* @ingroup gnt
*/
/*
* 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
*/
#ifndef GNT_MENUITEM_H
#define GNT_MENUITEM_H
#include <glib.h>
#include <glib-object.h>
#define GNT_TYPE_MENU_ITEM (gnt_menuitem_get_gtype())
#define GNT_MENU_ITEM(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GNT_TYPE_MENU_ITEM, GntMenuItem))
#define GNT_MENU_ITEM_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GNT_TYPE_MENU_ITEM, GntMenuItemClass))
#define GNT_IS_MENU_ITEM(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GNT_TYPE_MENU_ITEM))
#define GNT_IS_MENU_ITEM_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GNT_TYPE_MENU_ITEM))
#define GNT_MENU_ITEM_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GNT_TYPE_MENU_ITEM, GntMenuItemClass))
#define GNT_MENU_ITEM_FLAGS(obj) (GNT_MENU_ITEM(obj)->priv.flags)
#define GNT_MENU_ITEM_SET_FLAGS(obj, flags) (GNT_MENU_ITEM_FLAGS(obj) |= flags)
#define GNT_MENU_ITEM_UNSET_FLAGS(obj, flags) (GNT_MENU_ITEM_FLAGS(obj) &= ~(flags))
typedef struct _GntMenuItem GntMenuItem;
typedef struct _GntMenuItemPriv GntMenuItemPriv;
typedef struct _GntMenuItemClass GntMenuItemClass;
#include "gntmenu.h"
struct _GntMenuItemPriv
{
/* These will be used to determine the position of the submenu */
int x;
int y;
char trigger;
char *id;
};
typedef void (*GntMenuItemCallback)(GntMenuItem *item, gpointer data);
struct _GntMenuItem
{
GObject parent;
GntMenuItemPriv priv;
char *text;
/* A GntMenuItem can have a callback associated with it.
* The callback will be activated whenever the suer selects it and presses enter (or clicks).
* However, if the GntMenuItem has some child, then the callback and callbackdata will be ignored. */
gpointer callbackdata;
GntMenuItemCallback callback;
GntMenu *submenu;
};
struct _GntMenuItemClass
{
GObjectClass parent;
void (*gnt_reserved1)(void);
void (*gnt_reserved2)(void);
void (*gnt_reserved3)(void);
void (*gnt_reserved4)(void);
};
G_BEGIN_DECLS
/**
* @return GType for GntMenuItem.
*/
GType gnt_menuitem_get_gtype(void);
/**
* Create a new menuitem.
*
* @param text Label for the menuitem.
*
* @return The newly created menuitem.
*/
GntMenuItem * gnt_menuitem_new(const char *text);
/**
* Set a callback function for a menuitem.
*
* @param item The menuitem.
* @param callback The callback function.
* @param data Data to send to the callback function.
*/
void gnt_menuitem_set_callback(GntMenuItem *item, GntMenuItemCallback callback, gpointer data);
/**
* Set a submenu for a menuitem. A menuitem with a submenu cannot have a callback.
*
* @param item The menuitem.
* @param menu The submenu.
*/
void gnt_menuitem_set_submenu(GntMenuItem *item, GntMenu *menu);
/**
* Get the submenu for a menuitem.
*
* @param item The menuitem.
*
* @return The submenu, or @c NULL.
*
* @since 2.3.0
*/
GntMenu *gnt_menuitem_get_submenu(GntMenuItem *item);
/**
* Set a trigger key for the item.
*
* @param item The menuitem
* @param trigger The key that will trigger the item when the parent manu is visible
*/
void gnt_menuitem_set_trigger(GntMenuItem *item, char trigger);
/**
* Get the trigger key for a menuitem.
*
* @param item The menuitem
*
* @return The trigger key for the menuitem.
*
* @see gnt_menuitem_set_trigger
*/
char gnt_menuitem_get_trigger(GntMenuItem *item);
/**
* Set an ID for the menuitem.
*
* @param item The menuitem.
* @param id The ID for the menuitem.
*
* @since 2.3.0
*/
void gnt_menuitem_set_id(GntMenuItem *item, const char *id);
/**
* Get the ID of the menuitem.
*
* @param item The menuitem.
*
* @return The ID for the menuitem.
*
* @since 2.3.0
*/
const char * gnt_menuitem_get_id(GntMenuItem *item);
/**
* Activate a menuitem.
* Activating the menuitem will first trigger the 'activate' signal for the
* menuitem. Then the callback for the menuitem is triggered, if there is one.
*
* @param item The menuitem.
*
* @return Whether the callback for the menuitem was called.
*
* @since 2.3.0
*/
gboolean gnt_menuitem_activate(GntMenuItem *item);
G_END_DECLS
#endif /* GNT_MENUITEM_H */