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/* $Id$
* $URL$
*
* 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.
*
*/
/*
* 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
int widget_keypad_draw(WIDGET * Self)
{
WIDGET_KEYPAD *keypad = Self->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;
return val;
}
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 = WIDGET_KEY_RELEASED;
else
keypad->key = WIDGET_KEY_PRESSED;
/* position: confirm (default), up, down, left, right, cancel */
c = cfg_get(section, "position", "confirm");
if (!strcasecmp(c, "up"))
keypad->key += WIDGET_KEY_UP;
else if (!strcasecmp(c, "down"))
keypad->key += WIDGET_KEY_DOWN;
else if (!strcasecmp(c, "left"))
keypad->key += WIDGET_KEY_LEFT;
else if (!strcasecmp(c, "right"))
keypad->key += WIDGET_KEY_RIGHT;
else if (!strcasecmp(c, "cancel"))
keypad->key += WIDGET_KEY_CANCEL;
else
keypad->key += WIDGET_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:widget_keypad_draw,
find:widget_keypad_find,
quit:widget_keypad_quit,
};
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