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Diffstat (limited to '')
| -rw-r--r-- | widget_keypad.c | 176 |
1 files changed, 176 insertions, 0 deletions
diff --git a/widget_keypad.c b/widget_keypad.c new file mode 100644 index 0000000..8c278b1 --- /dev/null +++ b/widget_keypad.c @@ -0,0 +1,176 @@ +/* $Id: widget_keypad.c,v 1.1 2006/02/21 05:50:34 reinelt Exp $ + * + * keypad widget handling + * + * Copyright (C) 2006 Chris Maj <cmaj@freedomcorpse.com> + * Copyright (C) 2006 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_keypad.c,v $ + * Revision 1.1 2006/02/21 05:50:34 reinelt + * keypad support from Cris Maj + * + * + */ + +/* + * exported functions: + * + * WIDGET_CLASS Widget_Keypad + * the keypad 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_keypad.h" + +#ifdef WITH_DMALLOC +#include <dmalloc.h> +#endif + + +void widget_keypad_update(void *Self) +{ + WIDGET *W = (WIDGET *) Self; + WIDGET_KEYPAD *keypad = W->data; + RESULT result = { 0, 0, 0, NULL }; + + int val; + + /* evaluate expression */ + val = 0; + if (keypad->tree != NULL) { + Eval(keypad->tree, &result); + val = R2N(&result); + DelResult(&result); + } + keypad->val = val; + + /* finally, draw it! */ + if (W->class->draw) + W->class->draw(W); + +} + + +int widget_keypad_init(WIDGET * Self) +{ + char *section; + char *c; + WIDGET_KEYPAD *keypad; + + /* prepare config section */ + /* strlen("Widget:")=7 */ + section = malloc(strlen(Self->name) + 8); + strcpy(section, "Widget:"); + strcat(section, Self->name); + + keypad = malloc(sizeof(WIDGET_KEYPAD)); + memset(keypad, 0, sizeof(WIDGET_KEYPAD)); + + /* get raw expression (we evaluate them ourselves) */ + keypad->expression = cfg_get_raw(section, "expression", NULL); + + /* sanity check */ + if (keypad->expression == NULL || *keypad->expression == '\0') { + error("widget %s has no expression, using '0.0'", Self->name); + keypad->expression = "0"; + } + + /* compile expression */ + Compile(keypad->expression, &keypad->tree); + + /* state: pressed (default), released */ + c = cfg_get(section, "state", "pressed"); + if (!strcasecmp(c, "released")) + keypad->key = KEY_RELEASED; + else + keypad->key = KEY_PRESSED; + + /* position: confirm (default), up, down, left, right, cancel */ + c = cfg_get(section, "position", "confirm"); + if (!strcasecmp(c, "up")) + keypad->key += KEY_UP; + else if (!strcasecmp(c, "down")) + keypad->key += KEY_DOWN; + else if (!strcasecmp(c, "left")) + keypad->key += KEY_LEFT; + else if (!strcasecmp(c, "right")) + keypad->key += KEY_RIGHT; + else if (!strcasecmp(c, "cancel")) + keypad->key += KEY_CANCEL; + else + keypad->key += KEY_CONFIRM; + + free(section); + Self->data = keypad; + + return 0; +} + +int widget_keypad_find(WIDGET * Self, void *needle) +{ + WIDGET_KEYPAD *keypad; + unsigned int *n = needle; + + if (Self) { + if (Self->data) { + keypad = Self->data; + if (keypad->key == *n) + return 0; + } + } + + return -1; +} + +int widget_keypad_quit(WIDGET * Self) +{ + if (Self) { + if (Self->data) { + WIDGET_KEYPAD *KEYPAD = Self->data; + DelTree(KEYPAD->tree); + free(Self->data); + } + Self->data = NULL; + } + return 0; +} + + + +WIDGET_CLASS Widget_Keypad = { + name:"keypad", + type:WIDGET_TYPE_KEYPAD, + init:widget_keypad_init, + draw:NULL, + find:widget_keypad_find, + update:widget_keypad_update, + quit:widget_keypad_quit, +}; |