qulogic/libgnt

Fix arrow keys
fix-arrow-keys
2019-02-20, Petteri Pitkänen
7ac801527b0b
Fix arrow keys

The key-tree expects that for arrow keys the terminal transmits codes that
are defined in the terminfo database, but these codes are transmitted only
in application mode. To make the arrow key handling portable across
terminals, and to prevent the need for manually translating these codes, put
the terminal into application mode by calling ncurses keypad().

Fixes #12676.
/*
* 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 02110-1301, USA.
*/
#ifndef GNT_MENU_H
#define GNT_MENU_H
/**
* SECTION:gntmenu
* @section_id: libgnt-gntmenu
* @short_description: <filename>gntmenu.h</filename>
* @title: Menu
*/
#include "gnttree.h"
#include "gntcolors.h"
#include "gntkeys.h"
#define GNT_TYPE_MENU (gnt_menu_get_type())
#define GNT_MENU(obj) (G_TYPE_CHECK_INSTANCE_CAST((obj), GNT_TYPE_MENU, GntMenu))
#define GNT_MENU_CLASS(klass) (G_TYPE_CHECK_CLASS_CAST((klass), GNT_TYPE_MENU, GntMenuClass))
#define GNT_IS_MENU(obj) (G_TYPE_CHECK_INSTANCE_TYPE((obj), GNT_TYPE_MENU))
#define GNT_IS_MENU_CLASS(klass) (G_TYPE_CHECK_CLASS_TYPE((klass), GNT_TYPE_MENU))
#define GNT_MENU_GET_CLASS(obj) (G_TYPE_INSTANCE_GET_CLASS((obj), GNT_TYPE_MENU, GntMenuClass))
#define GNT_MENU_FLAGS(obj) (GNT_MENU(obj)->priv.flags)
#define GNT_MENU_SET_FLAGS(obj, flags) (GNT_MENU_FLAGS(obj) |= flags)
#define GNT_MENU_UNSET_FLAGS(obj, flags) (GNT_MENU_FLAGS(obj) &= ~(flags))
typedef struct _GntMenu GntMenu;
typedef struct _GntMenuPriv GntMenuPriv;
typedef struct _GntMenuClass GntMenuClass;
#include "gntmenuitem.h"
/**
* GntMenuType:
* @GNT_MENU_TOPLEVEL: Menu for a toplevel window
* @GNT_MENU_POPUP: A popup menu
*
* A toplevel-menu is displayed at the top of the screen, and it spans accross
* the entire width of the screen.
* A popup-menu could be displayed, for example, as a context menu for widgets.
*/
typedef enum
{
GNT_MENU_TOPLEVEL = 1,
GNT_MENU_POPUP,
} GntMenuType;
struct _GntMenu
{
GntTree parent;
GntMenuType type;
GList *list;
guint selected;
/* This will keep track of its immediate submenu which is visible so that
* keystrokes can be passed to it. */
GntMenu *submenu;
GntMenu *parentmenu;
};
struct _GntMenuClass
{
GntTreeClass parent;
/*< private >*/
void (*gnt_reserved1)(void);
void (*gnt_reserved2)(void);
void (*gnt_reserved3)(void);
void (*gnt_reserved4)(void);
};
G_BEGIN_DECLS
/**
* gnt_menu_get_type:
*
* Returns: The GType for GntMenu.
*/
GType gnt_menu_get_type(void);
/**
* gnt_menu_new:
* @type: The type of the menu, whether it's a toplevel menu or a popup menu.
*
* Create a new menu.
*
* Returns: The newly created menu.
*/
GntWidget * gnt_menu_new(GntMenuType type);
/**
* gnt_menu_add_item:
* @menu: The menu.
* @item: The item to add to the menu.
*
* Add an item to the menu.
*/
void gnt_menu_add_item(GntMenu *menu, GntMenuItem *item);
/**
* gnt_menu_get_item:
* @menu: The menu.
* @id: The ID for an item.
*
* Return the GntMenuItem with the given ID.
*
* Returns: (transfer none): The menuitem with the given ID, or %NULL.
*
* Since: 2.3.0
*/
GntMenuItem *gnt_menu_get_item(GntMenu *menu, const char *id);
G_END_DECLS
#endif /* GNT_MENU_H */