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/* $Id: widget.h 996 2009-03-23 17:22:24Z volker $
* $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/widget.h $
*
* generic widget handling
*
* Copyright (C) 2003, 2004 Michael Reinelt <michael@reinelt.co.at>
* Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
*
* This file is part of LCD4Linux.
*
* LCD4Linux 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, or (at your option)
* any later version.
*
* LCD4Linux 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., 675 Mass Ave, Cambridge, MA 02139, USA.
*
*/
#ifndef _WIDGET_H_
#define _WIDGET_H_
#include "rgb.h"
struct WIDGET; /* forward declaration */
typedef struct WIDGET_CLASS {
char *name;
int type;
int (*init) (struct WIDGET * Self);
int (*draw) (struct WIDGET * Self);
int (*find) (struct WIDGET * Self, void *needle);
int (*quit) (struct WIDGET * Self);
} WIDGET_CLASS;
typedef struct WIDGET {
char *name;
WIDGET_CLASS *class;
struct WIDGET *parent;
RGBA fg_color;
RGBA bg_color;
int fg_valid;
int bg_valid;
int layer;
int row;
int col;
void *data;
int x2; /* x of opposite corner, -1 for no display widget */
int y2; /* y of opposite corner, -1 for no display widget */
} WIDGET;
#define WIDGET_TYPE_RC 1
#define WIDGET_TYPE_XY 2
#define WIDGET_TYPE_GPO 3
#define WIDGET_TYPE_TIMER 4
#define WIDGET_TYPE_KEYPAD 5
int widget_register(WIDGET_CLASS * widget);
void widget_unregister(void);
int intersect(WIDGET * w1, WIDGET * w2);
int widget_add(const char *name, const int type, const int layer, const int row, const int col);
WIDGET *widget_find(int type, void *needle);
int widget_color(const char *section, const char *name, const char *key, RGBA * C);
#undef MIN
#define MIN(a,b) ((a) < (b) ? (a) : (b))
#undef MAX
#define MAX(a,b) ((a) > (b) ? (a) : (b))
#define NOCOORD (-1)
#endif
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