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/* $Id: widget_icon.c,v 1.23 2006/02/25 13:36:33 geronet Exp $
*
* icon widget handling
*
* Copyright (C) 2003, 2004 Michael Reinelt <reinelt@eunet.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.
*
*
* $Log: widget_icon.c,v $
* Revision 1.23 2006/02/25 13:36:33 geronet
* updated indent.sh, applied coding style
*
* Revision 1.22 2006/01/23 06:17:18 reinelt
* timer widget added
*
* Revision 1.21 2006/01/22 10:01:09 reinelt
* allow 'static' icons with speed=0
*
* Revision 1.20 2005/12/18 16:18:36 reinelt
* GPO's added again
*
* Revision 1.19 2005/11/06 09:54:43 reinelt
* fixed icon size removed, uses XRES & YRES (I hope this doesn't lead to problemes...)
*
* Revision 1.18 2005/11/06 09:17:20 reinelt
* re-use icons (thanks to Jesus de Santos Garcia)
*
* Revision 1.17 2005/05/08 04:32:45 reinelt
* CodingStyle added and applied
*
* Revision 1.16 2005/01/18 06:30:24 reinelt
* added (C) to all copyright statements
*
* Revision 1.15 2004/11/28 15:50:24 reinelt
* Cwlinux fixes (invalidation of user-defined chars)
*
* Revision 1.14 2004/06/26 12:05:00 reinelt
*
* uh-oh... the last CVS log message messed up things a lot...
*
* Revision 1.13 2004/06/26 09:27:21 reinelt
*
* added '-W' to CFLAGS
* changed all C++ comments to C ones
* cleaned up a lot of signed/unsigned mistakes
*
* Revision 1.12 2004/06/20 10:09:56 reinelt
*
* 'const'ified the whole source
*
* Revision 1.11 2004/03/11 06:39:59 reinelt
* big patch from Martin:
* - reuse filehandles
* - memory leaks fixed
* - earlier busy-flag checking with HD44780
* - reuse memory for strings in RESULT and hash
* - netdev_fast to wavid time-consuming regex
*
* Revision 1.10 2004/03/06 20:31:16 reinelt
* Complete rewrite of the evaluator to get rid of the code
* from mark Morley (because of license issues).
* The new Evaluator does a pre-compile of expressions, and
* stores them in trees. Therefore it should be reasonable faster...
*
* Revision 1.9 2004/03/03 04:44:16 reinelt
* changes (cosmetics?) to the big patch from Martin
* hash patch un-applied
*
* Revision 1.8 2004/03/03 03:47:04 reinelt
* big patch from Martin Hejl:
* - use qprintf() where appropriate
* - save CPU cycles on gettimeofday()
* - add quit() functions to free allocated memory
* - fixed lots of memory leaks
*
* Revision 1.7 2004/02/15 21:43:43 reinelt
* T6963 driver nearly finished
* framework for graphic displays done
* i2c_sensors patch from Xavier
* some more old generation files removed
*
* Revision 1.6 2004/02/07 13:45:23 reinelt
* icon visibility patch #2 from Xavier
*
* Revision 1.5 2004/02/04 19:11:44 reinelt
* icon visibility patch from Xavier
*
* Revision 1.4 2004/01/30 20:57:56 reinelt
* HD44780 patch from Martin Hejl
* dmalloc integrated
*
* Revision 1.3 2004/01/29 04:40:03 reinelt
* every .c file includes "config.h" now
*
* Revision 1.2 2004/01/23 07:04:39 reinelt
* icons finished!
*
* Revision 1.1 2004/01/23 04:54:03 reinelt
* icon widget added (not finished yet!)
*
*/
/*
* 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 "evaluator.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;
RESULT result = { 0, 0, 0, NULL };
/* process the parent only */
if (W->parent == NULL) {
/* evaluate expressions */
Icon->speed = 100;
if (Icon->speed_tree != NULL) {
Eval(Icon->speed_tree, &result);
Icon->speed = R2N(&result);
if (Icon->speed <= 0)
Icon->speed = 0;
else if (Icon->speed < 10)
Icon->speed = 10;
DelResult(&result);
}
Icon->visible = 1;
if (Icon->visible_tree != NULL) {
Eval(Icon->visible_tree, &result);
Icon->visible = R2N(&result);
if (Icon->visible < 0)
Icon->visible = 0;
DelResult(&result);
}
/* 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 (Icon->speed > 0) {
timer_add(widget_icon_update, Self, 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));
/* get raw expressions (we evaluate them ourselves) */
Icon->speed_expr = cfg_get_raw(section, "speed", NULL);
Icon->visible_expr = cfg_get_raw(section, "visible", NULL);
/* sanity check */
if (Icon->speed_expr == NULL || *Icon->speed_expr == '\0') {
error("Icon %s has no speed, using '100'", Self->name);
Icon->speed_expr = "100";
}
/* compile'em */
Compile(Icon->speed_expr, &Icon->speed_tree);
Compile(Icon->visible_expr, &Icon->visible_tree);
/* read bitmap */
widget_icon_read_bitmap(section, Icon);
free(section);
Self->data = Icon;
/* 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;
DelTree(Icon->speed_tree);
DelTree(Icon->visible_tree);
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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