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/* $Id: widget.h 996 2009-03-23 17:22:24Z volker $
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* $URL: https://ssl.bulix.org/svn/lcd4linux/trunk/widget.h $
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* generic widget handling
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* Copyright (C) 2003, 2004 Michael Reinelt <michael@reinelt.co.at>
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* Copyright (C) 2004 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net>
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* This file is part of LCD4Linux.
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* LCD4Linux is free software; you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation; either version 2, or (at your option)
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* LCD4Linux is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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* You should have received a copy of the GNU General Public License
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* along with this program; if not, write to the Free Software
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* Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA.
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struct WIDGET; /* forward declaration */
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typedef struct WIDGET_CLASS {
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int (*init) (struct WIDGET * Self);
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int (*draw) (struct WIDGET * Self);
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int (*find) (struct WIDGET * Self, void *needle);
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int (*quit) (struct WIDGET * Self);
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typedef struct WIDGET {
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struct WIDGET *parent;
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int x2; /* x of opposite corner, -1 for no display widget */
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int y2; /* y of opposite corner, -1 for no display widget */
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#define WIDGET_TYPE_RC 1
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#define WIDGET_TYPE_XY 2
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#define WIDGET_TYPE_GPO 3
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#define WIDGET_TYPE_TIMER 4
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#define WIDGET_TYPE_KEYPAD 5
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int widget_register(WIDGET_CLASS * widget);
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void widget_unregister(void);
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int intersect(WIDGET * w1, WIDGET * w2);
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int widget_add(const char *name, const int type, const int layer, const int row, const int col);
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WIDGET *widget_find(int type, void *needle);
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int widget_color(const char *section, const char *name, const char *key, RGBA * C);
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#define MIN(a,b) ((a) < (b) ? (a) : (b))
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#define MAX(a,b) ((a) > (b) ? (a) : (b))
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widget.h
