dtv-scan-tables.git - Digital TV scan tables

Age	Commit message (Expand)	Author	Files	Lines
2005-03-04	update submitted by Angelo Conforti	Johannes Stezenbach	1	-1/+3
2005-02-25	submitted by Angelo Conforti	Johannes Stezenbach	1	-0/+10

/* $Id: widget_bar.c,v 1.12 2004/06/26 12:05:00 reinelt Exp $ * * bar widget handling * * Copyright 2003,2004 Michael Reinelt <reinelt@eunet.at> * Copyright 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_bar.c,v $ * Revision 1.12 2004/06/26 12:05:00 reinelt * * uh-oh... the last CVS log message messed up things a lot... * * Revision 1.11 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 1.10 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 1.9 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 1.8 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 2004/01/30 20:57:56 reinelt * HD44780 patch from Martin Hejl * dmalloc integrated * * Revision 1.6 2004/01/29 04:40:03 reinelt * every .c file includes "config.h" now * * Revision 1.5 2004/01/23 04:54:00 reinelt * icon widget added (not finished yet!) * * Revision 1.4 2004/01/20 14:25:12 reinelt * some reorganization * moved drv_generic to drv_generic_serial * moved port locking stuff to drv_generic_serial * * Revision 1.3 2004/01/20 12:45:47 reinelt * "Default screen" working with MatrixOrbital * * Revision 1.2 2004/01/20 04:51:39 reinelt * moved generic stuff from drv_MatrixOrbital to drv_generic * implemented new-stylish bars which are nearly finished * * Revision 1.1 2004/01/18 21:25:16 reinelt * Framework for bar widget opened * */ /* * exported functions: * * WIDGET_CLASS Widget_Bar * the bar 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_bar.h" #ifdef WITH_DMALLOC #include <dmalloc.h> #endif void widget_bar_update (void *Self) { WIDGET *W = (WIDGET*)Self; WIDGET_BAR *Bar = W->data; RESULT result = {0, 0, 0, NULL}; double val1, val2; double min, max; /* evaluate expressions */ val1 = 0.0; if (Bar->tree1 != NULL) { Eval(Bar->tree1, &result); val1 = R2N(&result); DelResult(&result); } val2 = val1; if (Bar->tree2!=NULL) { Eval(Bar->tree2, &result); val2 = R2N(&result); DelResult(&result); } /* minimum: if expression is empty, do auto-scaling */ if (Bar->tree_min!=NULL) { Eval(Bar->tree_min, &result); min = R2N(&result); DelResult(&result); } else { min = Bar->min; if (val1 < min) min = val1; if (val2 < min) min = val2; } /* maximum: if expression is empty, do auto-scaling */ if (Bar->tree_max!=NULL) { Eval(Bar->tree_max, &result); max = R2N(&result); DelResult(&result); } else { max = Bar->max; if (val1 > max) max = val1; if (val2 > max) max = val2; } /* calculate bar values */ Bar->min=min; Bar->max=max; if (max>min) { Bar->val1=(val1-min)/(max-min); Bar->val2=(val2-min)/(max-min); } else { Bar->val1=0.0; Bar->val2=0.0; } /* finally, draw it! */ if (W->class->draw) W->class->draw(W); } int widget_bar_init (WIDGET *Self) { char *section; char *c; WIDGET_BAR *Bar; /* prepare config section */ /* strlen("Widget:")=7 */ section=malloc(strlen(Self->name)+8); strcpy(section, "Widget:"); strcat(section, Self->name); Bar=malloc(sizeof(WIDGET_BAR)); memset (Bar, 0, sizeof(WIDGET_BAR)); /* get raw expressions (we evaluate them ourselves) */ Bar->expression1 = cfg_get_raw (section, "expression", NULL); Bar->expression2 = cfg_get_raw (section, "expression2", NULL); /* sanity check */ if (Bar->expression1==NULL || *Bar->expression1=='\0') { error ("widget %s has no expression, using '0.0'", Self->name); Bar->expression1="0"; } /* minimum and maximum value */ Bar->expr_min = cfg_get_raw (section, "min", NULL); Bar->expr_max = cfg_get_raw (section, "max", NULL); /* compile all expressions */ Compile (Bar->expression1, &Bar->tree1); Compile (Bar->expression2, &Bar->tree2); Compile (Bar->expr_min, &Bar->tree_min); Compile (Bar->expr_max, &Bar->tree_max); /* bar length, default 1 */ cfg_number (section, "length", 1, 0, 99999, &(Bar->length)); /* direction: East (default), West, North, South */ c = cfg_get (section, "direction", "E"); switch (toupper(*c)) { case 'E': Bar->direction=DIR_EAST; break; case 'W': Bar->direction=DIR_WEST; break; case 'N': Bar->direction=DIR_NORTH; break; case 'S': Bar->direction=DIR_SOUTH; break; default: error ("widget %s has unknown direction '%s', using 'East'", Self->name, c); Bar->direction=DIR_EAST; } free (c); /* update interval (msec), default 1 sec */ cfg_number (section, "update", 1000, 10, 99999, &(Bar->update)); free (section); Self->data=Bar; timer_add (widget_bar_update, Self, Bar->update, 0); return 0; } int widget_bar_quit (WIDGET *Self) { if (Self ) { if (Self->data) { WIDGET_BAR *Bar = Self->data; DelTree(Bar->tree1); DelTree(Bar->tree2); DelTree(Bar->tree_min); DelTree(Bar->tree_max); free(Self->data); } Self->data=NULL; } return 0; } WIDGET_CLASS Widget_Bar = { name: "bar", init: widget_bar_init, draw: NULL, quit: widget_bar_quit, };