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author | reinelt <reinelt@3ae390bd-cb1e-0410-b409-cd5a39f66f1f> | 2005-12-18 16:18:36 +0000 |
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committer | reinelt <reinelt@3ae390bd-cb1e-0410-b409-cd5a39f66f1f> | 2005-12-18 16:18:36 +0000 |
commit | 0a40256cd918d386d0a7b9955322cf9aa0f9da8b (patch) | |
tree | 819babba1e548bbcd9fffef6875593e7ade8b57b /widget_gpo.c | |
parent | 59524120cfc433dbf1095cf095d8035d21e69784 (diff) | |
download | lcd4linux-0a40256cd918d386d0a7b9955322cf9aa0f9da8b.tar.gz |
[lcd4linux @ 2005-12-18 16:18:34 by reinelt]
GPO's added again
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@602 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
Diffstat (limited to 'widget_gpo.c')
-rw-r--r-- | widget_gpo.c | 141 |
1 files changed, 141 insertions, 0 deletions
diff --git a/widget_gpo.c b/widget_gpo.c new file mode 100644 index 0000000..a53b012 --- /dev/null +++ b/widget_gpo.c @@ -0,0 +1,141 @@ +/* $Id: widget_gpo.c,v 1.1 2005/12/18 16:18:36 reinelt Exp $ + * + * GPO widget handling + * + * Copyright (C) 2005 Michael Reinelt <reinelt@eunet.at> + * Copyright (C) 2005 The LCD4Linux Team <lcd4linux-devel@users.sourceforge.net> + * + * 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, 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., 675 Mass Ave, Cambridge, MA 02139, USA. + * + * + * $Log: widget_gpo.c,v $ + * Revision 1.1 2005/12/18 16:18:36 reinelt + * GPO's added again + * + */ + +/* + * exported functions: + * + * WIDGET_CLASS Widget_GPO + * the GPO widget + * + */ + + +#include "config.h" + +#include <stdlib.h> +#include <stdio.h> +#include <string.h> +#include <ctype.h> + +#include "debug.h" +#include "cfg.h" +#include "evaluator.h" +#include "timer.h" +#include "widget.h" +#include "widget_gpo.h" + +#ifdef WITH_DMALLOC +#include <dmalloc.h> +#endif + + +void widget_gpo_update(void *Self) +{ + WIDGET *W = (WIDGET *) Self; + WIDGET_GPO *GPO = W->data; + RESULT result = { 0, 0, 0, NULL }; + + int val; + + /* evaluate expression */ + val = 0; + if (GPO->tree != NULL) { + Eval(GPO->tree, &result); + val = R2N(&result); + DelResult(&result); + } + GPO->num = W->row; + GPO->val = val; + + /* finally, draw it! */ + if (W->class->draw) + W->class->draw(W); + +} + + +int widget_gpo_init(WIDGET * Self) +{ + char *section; + WIDGET_GPO *GPO; + + /* prepare config section */ + /* strlen("Widget:")=7 */ + section = malloc(strlen(Self->name) + 8); + strcpy(section, "Widget:"); + strcat(section, Self->name); + + GPO = malloc(sizeof(WIDGET_GPO)); + memset(GPO, 0, sizeof(WIDGET_GPO)); + + /* get raw expression (we evaluate them ourselves) */ + GPO->expression = cfg_get_raw(section, "expression", NULL); + + /* sanity check */ + if (GPO->expression == NULL || *GPO->expression == '\0') { + error("widget %s has no expression, using '0.0'", Self->name); + GPO->expression = "0"; + } + + /* compile expression */ + Compile(GPO->expression, &GPO->tree); + + /* update interval (msec), default 1 sec */ + cfg_number(section, "update", 1000, 10, -1, &(GPO->update)); + + free(section); + Self->data = GPO; + + timer_add(widget_gpo_update, Self, GPO->update, 0); + + return 0; +} + + +int widget_gpo_quit(WIDGET * Self) +{ + if (Self) { + if (Self->data) { + WIDGET_GPO *GPO = Self->data; + DelTree(GPO->tree); + free(Self->data); + } + Self->data = NULL; + } + return 0; +} + + + +WIDGET_CLASS Widget_GPO = { + name:"gpo", + type:WIDGET_TYPE_GPO, + init:widget_gpo_init, + draw:NULL, + quit:widget_gpo_quit, +}; |