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/*
Copyright (c) 2003 Bruno T. C. de Oliveira
LICENSE INFORMATION:
This program 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., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
Copyright (c) 2002 Bruno T. C. de Oliveira
INFORMAES DE LICENA:
Este programa um software de livre distribuio; voc pode
redistribu-lo e/ou modific-lo sob os termos da GNU General
Public License, conforme publicado pela Free Software Foundation,
pela verso 2 da licena ou qualquer verso posterior.
Este programa distribudo na esperana de que ele ser til
aos seus usurios, porm, SEM QUAISQUER GARANTIAS; sem sequer
a garantia implcita de COMERCIABILIDADE ou DE ADEQUAO A
QUALQUER FINALIDADE ESPECFICA. Consulte a GNU General Public
License para obter mais detalhes (uma cpia acompanha este
programa, armazenada no arquivo COPYING).
*/
#ifndef _btco_aewl_widget_h
#define _btco_aewl_widget_h
#include <ncurses.h>
#include <stdbool.h>
struct AewlForm_;
/* definition of AewlWidget */
struct AewlWidget_;
struct AewlWidget_ {
WINDOW *win; /* the window where this widget draws
* itself. This is set when the
* widget is added to a form, you don't
* need to assign it explicitly. */
struct AewlForm_ *form; /* the form to which this widget belongs. This
* is set when the widget is added to a form */
int x, y, width, height; /* widget position and dimensions */
int shortcut; /* shortcut key to focus widget */
bool focusable; /* indicates whether the widget can
* receive input focus */
struct AewlWidget_* next; /* link to next widget in chain; for use
* when chaining widgets in a linked list */
/* functions */
/* repaints widget onscreen. <focused> indicates whether the widget
* is focused or not. Can be NULL (does not repaint) */
void (*fn_repaint)(struct AewlWidget_ *self, bool focused);
/* handles a keypress directed to this widget. Returns a result code
* (an integer value, plain and simple). This function pointer
* can be NULL (handles no keys, result code returned always 0) */
int (*fn_handlekey)(struct AewlWidget_ *self, int ch);
/* destroys the widget */
void (*fn_destroy)(struct AewlWidget_ *self);
};
typedef struct AewlWidget_ AewlWidget;
/* There is no function to create a widget out of thin air. This is like
* an "abstract class" if you want to think about it that way. */
/* Fills in (in-place) the default values for the fields of the given widget.
* This function is to be called from concrete widget implementation code */
void aewl_widget_fill_defaults(AewlWidget* w);
#endif
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