Merge tag 'upstream/0+git20131201.52a7b0a' - dtv-scan-tables.git

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author	Jonathan McCrohan <jmccrohan@gmail.com>	2013-12-03 22:31:38 +0000
committer	Jonathan McCrohan <jmccrohan@gmail.com>	2013-12-03 22:31:38 +0000
commit	1751d9ef5b7d70a7d104e7939cad6aa867444bc5 (patch)
tree	82e1c7779b6ea1dd8030f4907ea209f10177f099 /dvb-t/se-Kaxholmen_Vistakulle
parent	1b175c07bd383d1caca709d91adac6385132c6fc (diff)
parent	6da3f3d261b2df13d5f2736a1175b2e184e52bc7 (diff)
download	dtv-scan-tables-1751d9ef5b7d70a7d104e7939cad6aa867444bc5.tar.gz

Merge tag 'upstream/0+git20131201.52a7b0a'

Upstream version 0+git20131201.52a7b0a

Diffstat (limited to 'dvb-t/se-Kaxholmen_Vistakulle')

0 files changed, 0 insertions, 0 deletions

/* $Id: widget_text.c,v 1.6 2004/01/15 07:47:02 reinelt Exp $ * * simple text 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_text.c,v $ * Revision 1.6 2004/01/15 07:47:02 reinelt * debian/ postinst and watch added (did CVS forget about them?) * evaluator: conditional expressions (a?b:c) added * text widget nearly finished * * Revision 1.5 2004/01/15 04:29:45 reinelt * moved lcd4linux.conf.sample to *.old * lcd4linux.conf.sample with new layout * new plugins 'loadavg' and 'meminfo' * text widget have pre- and postfix * * Revision 1.4 2004/01/14 11:33:00 reinelt * new plugin 'uname' which does what it's called * text widget nearly finished * first results displayed on MatrixOrbital * * Revision 1.3 2004/01/13 08:18:20 reinelt * timer queues added * liblcd4linux deactivated turing transformation to new layout * * Revision 1.2 2004/01/11 18:26:02 reinelt * further widget and layout processing * * Revision 1.1 2004/01/10 20:22:33 reinelt * added new function 'cfg_list()' (not finished yet) * added layout.c (will replace processor.c someday) * added widget_text.c (will be the first and most important widget) * modified lcd4linux.c so that old-style configs should work, too * */ /* * exported functions: * * WIDGET_CLASS Widget_Text * a simple text widget which * must be supported by all displays * */ #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_text.h" void widget_text_scroll (void *Self) { WIDGET *W = (WIDGET*)Self; WIDGET_TEXT *T = W->data; int num, len, width, pad; char *src, *dst; num = 0; len = strlen(T->value); width = T->width-strlen(T->preval)-strlen(T->postval); if (width<0) width=0; switch (T->align) { case ALIGN_LEFT: pad=0; break; case ALIGN_CENTER: pad=(width - len)/2; if (pad<0) pad=0; break; case ALIGN_RIGHT: pad=width - len; if (pad<0) pad=0; break; case ALIGN_MARQUEE: pad=width - T->scroll; T->scroll++; if (T->scroll >= width+len) T->scroll=0; break; default: // not reached pad=0; } dst=T->buffer; // process prefix src=T->preval; while (num < T->width) { if (*src=='\0') break; *(dst++)=*(src++); num++; } src=T->value; // pad blanks on the beginning while (pad > 0 && num < T->width) { *(dst++)=' '; num++; pad--; } // skip src chars (marquee) while (pad<0) { src++; pad++; } // copy content while (num < T->width) { if (*src=='\0') break; *(dst++)=*(src++); num++; } // pad blanks on the end src=T->postval; len=strlen(src); while (num < T->width-len) { *(dst++)=' '; num++; } // process postfix while (num < T->width) { if (*src=='\0') break; *(dst++)=*(src++); num++; } *dst='\0'; // finally, draw it! if (W->class->draw) W->class->draw(W); } void widget_text_update (void *Self) { WIDGET *W = (WIDGET*)Self; WIDGET_TEXT *T = W->data; RESULT result = {0, 0.0, NULL}; char *preval, *postval, *value; int update; // evaluate prefix if (T->prefix!=NULL && strlen(T->prefix)>0) { Eval(T->prefix, &result); preval=strdup(R2S(&result)); DelResult (&result); } else { preval=strdup(""); } // evaluate postfix if (T->postfix!=NULL && *(T->postfix)!='\0') { Eval(T->postfix, &result); postval=strdup(R2S(&result)); DelResult (&result); } else { postval=strdup(""); } // evaluate expression Eval(T->expression, &result); // string or number? if (T->precision==0xC0DE) { value=strdup(R2S(&result)); } else { double number=R2N(&result); int width=T->width-strlen(preval)-strlen(postval); if (width<0) width=0; int precision=T->precision; // print zero bytes so we can specify NULL as target // and get the length of the resulting string int size=snprintf (NULL, 0, "%.*f", precision, number); // number does not fit into field width: try to reduce precision if (size>width && precision>0) { int delta=size-width; if (delta>precision) delta=precision; precision-=delta; size-=delta; // zero precision: omit decimal point, too if (precision==0) size--; } // number still doesn't fit: display '*****' if (size>width) { value=malloc(width+1); memset (value, '*', width); *(value+width)='\0'; } else { value=malloc(size+1); snprintf (value, size+1, "%.*f", precision, number); } } DelResult (&result); update=0; // prefix changed? if (T->preval == NULL || strcmp(T->preval, preval)!=0) { update=1; if (T->preval) free (T->preval); T->preval=preval; T->scroll=0; // reset marquee counter } else { free (preval); } // postfix changed? if (T->postval == NULL || strcmp(T->postval, postval)!=0) { update=1; if (T->postval) free (T->postval); T->postval=postval; T->scroll=0; // reset marquee counter } else { free (postval); } // value changed? if (T->value == NULL || strcmp(T->value, value)!=0) { update=1; if (T->value) free (T->value); T->value=value; T->scroll=0; // reset marquee counter } else { free (value); } // something has changed and should be updated if (update) { // if there's a marquee scroller active, it has its own // update callback timer, so we do nothing here; otherwise // we simply call this scroll callback directly if (T->align!=ALIGN_MARQUEE) { widget_text_scroll (Self); } } } int widget_text_init (WIDGET *Self) { char *section; char *c; WIDGET_TEXT *T; // prepare config section // strlen("Widget:")=7 section=malloc(strlen(Self->name)+8); strcpy(section, "Widget:"); strcat(section, Self->name); T=malloc(sizeof(WIDGET_TEXT)); memset (T, 0, sizeof(WIDGET_TEXT)); // get raw pre- and postfix (we evaluate it ourselves) T->prefix = cfg_get_raw (section, "prefix", NULL); T->postfix = cfg_get_raw (section, "postfix", NULL); // get raw expression (we evaluate it ourselves) T->expression = cfg_get_raw (section, "expression", "''"); // field width, default 10 cfg_number (section, "width", 10, 0, 99999, &(T->width)); // precision: number of digits after the decimal point (default: none) // Note: this is the *maximum* precision on small values, // for larger values the precision may be reduced to fit into the field width. // The default value 0xC0DE is used to distinguish between numbers and strings: // if no precision is given, the result is always treated as a string. If a // precision is specified, the result is treated as a number. cfg_number (section, "precision", 0xC0DE, 0, 80, &(T->precision)); // field alignment: Left (default), Center, Right or Marquee c = cfg_get (section, "align", "L"); switch (toupper(*c)) { case 'L': T->align=ALIGN_LEFT; break; case 'C': T->align=ALIGN_CENTER; break; case 'R': T->align=ALIGN_RIGHT; break; case 'M': T->align=ALIGN_MARQUEE; break; default: error ("widget %s has unknown alignment '%s', using 'Left'", section, c); T->align=ALIGN_LEFT; } free (c); // update interval (msec), default 1 sec cfg_number (section, "update", 1000, 10, 99999, &(T->update)); // marquee scroller speed: interval (msec), default 500msec if (T->align==ALIGN_MARQUEE) { cfg_number (section, "speed", 500, 10, 99999, &(T->speed)); } // buffer T->buffer=malloc(T->width+1); free (section); Self->data=T; timer_add (widget_text_update, Self, T->update, 0); // a marquee scroller has its own timer and callback if (T->align==ALIGN_MARQUEE) { timer_add (widget_text_scroll, Self, T->speed, 0); } return 0; } int widget_text_quit (WIDGET *Self) { if (Self->data) { free (Self->data); Self->data=NULL; } return 0; } WIDGET_CLASS Widget_Text = { name: "text", init: widget_text_init, draw: NULL, quit: widget_text_quit, };


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