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/* $Id$
* $URL$
*
* icon widget handling
*
* Copyright (C) 2003, 2004 Michael Reinelt <michael@reinelt.co.at>
* Copyright (C) 2004 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_Icon
* the icon widget
*
*/
#include "config.h"
#include <stdlib.h>
#include <stdio.h>
#include <string.h>
#include <ctype.h>
#include "debug.h"
#include "cfg.h"
#include "qprintf.h"
#include "property.h"
#include "timer.h"
#include "widget.h"
#include "widget_icon.h"
#ifdef WITH_DMALLOC
#include <dmalloc.h>
#endif
/* icons size is same as char size */
extern int XRES, YRES;
static void widget_icon_read_bitmap(const char *section, WIDGET_ICON * Icon)
{
int row, n;
char key[15];
char *val, *v;
unsigned char *map;
for (row = 0; row < YRES; row++) {
qprintf(key, sizeof(key), "Bitmap.Row%d", row + 1);
val = cfg_get(section, key, "");
map = Icon->bitmap + row;
n = 0;
for (v = val; *v != '\0'; v++) {
if (n >= Icon->maxmap) {
Icon->maxmap++;
Icon->bitmap = realloc(Icon->bitmap, Icon->maxmap * YRES * sizeof(char));
memset(Icon->bitmap + n * YRES, 0, YRES * sizeof(char));
map = Icon->bitmap + n * YRES + row;
}
switch (*v) {
case '|':
n++;
map += YRES;
break;
case '*':
(*map) <<= 1;
(*map) |= 1;
break;
default:
(*map) <<= 1;
}
}
free(val);
}
}
void widget_icon_update(void *Self)
{
WIDGET *W = (WIDGET *) Self;
WIDGET_ICON *Icon = W->data;
/* process the parent only */
if (W->parent == NULL) {
/* evaluate properties */
property_eval(&Icon->speed);
property_eval(&Icon->visible);
property_eval(&Icon->frame);
int frame = P2N(&Icon->frame);
if ((frame >= 0) && (frame <= Icon->maxmap)) {
/* select icon bitmap by evaluated frame number */
Icon->curmap = frame;
} else {
/* rotate icon bitmap */
Icon->curmap++;
if (Icon->curmap >= Icon->maxmap)
Icon->curmap = 0;
}
}
/* finally, draw it! */
if (W->class->draw)
W->class->draw(W);
/* add a new one-shot timer */
if (P2N(&Icon->speed) > 0) {
timer_add(widget_icon_update, Self, P2N(&Icon->speed), 1);
}
}
int widget_icon_init(WIDGET * Self)
{
char *section;
WIDGET_ICON *Icon;
/* re-use the parent if one exists */
if (Self->parent == NULL) {
/* prepare config section */
/* strlen("Widget:")=7 */
section = malloc(strlen(Self->name) + 8);
strcpy(section, "Widget:");
strcat(section, Self->name);
Icon = malloc(sizeof(WIDGET_ICON));
memset(Icon, 0, sizeof(WIDGET_ICON));
/* load properties */
property_load(section, "speed", "100", &Icon->speed);
property_load(section, "visible", "1", &Icon->visible);
property_load(section, "frame", "-1", &Icon->frame);
/* read bitmap */
widget_icon_read_bitmap(section, Icon);
free(section);
Self->data = Icon;
Self->x2 = Self->col + 1;
Self->y2 = Self->row + 1;
/* as the speed is evaluatod on every call, we use 'one-shot'-timers. */
/* The timer will be reactivated on every call to widget_icon_update(). */
/* We do the initial call here... */
Icon->prvmap = -1;
/* reset ascii */
Icon->ascii = -1;
} else {
/* re-use the parent */
Self->data = Self->parent->data;
}
/* just do it! */
widget_icon_update(Self);
return 0;
}
int widget_icon_quit(WIDGET * Self)
{
if (Self) {
/* do not deallocate child widget! */
if (Self->parent == NULL) {
if (Self->data) {
WIDGET_ICON *Icon = Self->data;
property_free(&Icon->speed);
property_free(&Icon->visible);
if (Icon->bitmap)
free(Icon->bitmap);
free(Self->data);
Self->data = NULL;
}
}
}
return 0;
}
WIDGET_CLASS Widget_Icon = {
.name = "icon",
.type = WIDGET_TYPE_RC,
.init = widget_icon_init,
.draw = NULL,
.quit = widget_icon_quit,
};
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