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author | reinelt <reinelt@3ae390bd-cb1e-0410-b409-cd5a39f66f1f> | 2004-06-26 09:27:21 +0000 |
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committer | reinelt <reinelt@3ae390bd-cb1e-0410-b409-cd5a39f66f1f> | 2004-06-26 09:27:21 +0000 |
commit | 1338a264d57ad5f74ce6f8283966020a8e978d2e (patch) | |
tree | b14a2a596dd615ae17880b7007d6b2b78191af94 /widget_text.c | |
parent | 55abb63f11967a147d26e4654cbbd7ab3f01a558 (diff) | |
download | lcd4linux-1338a264d57ad5f74ce6f8283966020a8e978d2e.tar.gz |
[lcd4linux @ 2004-06-26 09:27:20 by reinelt]
added '-W' to CFLAGS
changed all C++ comments to C ones ('//' => '/* */')
cleaned up a lot of signed/unsigned mistakes
git-svn-id: https://ssl.bulix.org/svn/lcd4linux/trunk@480 3ae390bd-cb1e-0410-b409-cd5a39f66f1f
Diffstat (limited to 'widget_text.c')
-rw-r--r-- | widget_text.c | 100 |
1 files changed, 53 insertions, 47 deletions
diff --git a/widget_text.c b/widget_text.c index 5840a34..f15bc5d 100644 --- a/widget_text.c +++ b/widget_text.c @@ -1,4 +1,4 @@ -/* $Id: widget_text.c,v 1.17 2004/03/11 06:39:59 reinelt Exp $ +/* $Id: widget_text.c,v 1.18 2004/06/26 09:27:21 reinelt Exp $ * * simple text widget handling * @@ -21,6 +21,12 @@ * * * $Log: widget_text.c,v $ + * Revision 1.18 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 1.17 2004/03/11 06:39:59 reinelt * big patch from Martin: * - reuse filehandles @@ -161,13 +167,13 @@ void widget_text_scroll (void *Self) T->scroll++; if (T->scroll >= width+len) T->scroll=0; break; - default: // not reached + default: /* not reached */ pad=0; } dst=T->buffer; - // process prefix + /* process prefix */ src=T->preval; while (num < T->width) { if (*src=='\0') break; @@ -177,27 +183,27 @@ void widget_text_scroll (void *Self) src=T->value; - // pad blanks on the beginning + /* pad blanks on the beginning */ while (pad > 0 && num < T->width) { *(dst++)=' '; num++; pad--; } - // skip src chars (marquee) + /* skip src chars (marquee) */ while (pad<0) { src++; pad++; } - // copy content + /* copy content */ while (num < T->width) { if (*src=='\0') break; *(dst++)=*(src++); num++; } - // pad blanks on the end + /* pad blanks on the end */ src=T->postval; len=strlen(src); while (num < T->width-len) { @@ -205,7 +211,7 @@ void widget_text_scroll (void *Self) num++; } - // process postfix + /* process postfix */ while (num < T->width) { if (*src=='\0') break; *(dst++)=*(src++); @@ -214,7 +220,7 @@ void widget_text_scroll (void *Self) *dst='\0'; - // finally, draw it! + /* finally, draw it! */ if (W->class->draw) W->class->draw(W); } @@ -229,7 +235,7 @@ void widget_text_update (void *Self) char *preval, *postval, *value; int update; - // evaluate prefix + /* evaluate prefix */ if (T->pretree!=NULL) { Eval(T->pretree, &result); preval=strdup(R2S(&result)); @@ -238,7 +244,7 @@ void widget_text_update (void *Self) preval=strdup(""); } - // evaluate postfix + /* evaluate postfix */ if (T->posttree!=NULL) { Eval(T->posttree, &result); postval=strdup(R2S(&result)); @@ -247,30 +253,30 @@ void widget_text_update (void *Self) postval=strdup(""); } - // evaluate expression + /* evaluate expression */ Eval(T->tree, &result); - // string or number? + /* string or number? */ if (T->precision==0xC0DE) { value=strdup(R2S(&result)); } else { double number=R2N(&result); int width=T->width-strlen(preval)-strlen(postval); int precision=T->precision; - // print zero bytes so we can specify NULL as target - // and get the length of the resulting string + /* 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 + /* number does not fit into field width: try to reduce precision */ if (width<0) width=0; if (size>width && precision>0) { int delta=size-width; if (delta>precision) delta=precision; precision-=delta; size-=delta; - // zero precision: omit decimal point, too + /* zero precision: omit decimal point, too */ if (precision==0) size--; } - // number still doesn't fit: display '*****' + /* number still doesn't fit: display '*****' */ if (size>width) { value=malloc(width+1); memset (value, '*', width); @@ -285,41 +291,41 @@ void widget_text_update (void *Self) update=0; - // prefix changed? + /* 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 + T->scroll=0; /* reset marquee counter */ } else { free (preval); } - // postfix changed? + /* 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 + T->scroll=0; /* reset marquee counter */ } else { free (postval); } - // value changed? + /* 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 + T->scroll=0; /* reset marquee counter */ } else { free (value); } - // something has changed and should be updated + /* 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 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); } @@ -333,8 +339,8 @@ int widget_text_init (WIDGET *Self) char *section; char *c; WIDGET_TEXT *Text; - // prepare config section - // strlen("Widget:")=7 + /* prepare config section */ + /* strlen("Widget:")=7 */ section=malloc(strlen(Self->name)+8); strcpy(section, "Widget:"); strcat(section, Self->name); @@ -342,30 +348,30 @@ int widget_text_init (WIDGET *Self) Text=malloc(sizeof(WIDGET_TEXT)); memset (Text, 0, sizeof(WIDGET_TEXT)); - // get raw pre- and postfix (we evaluate it ourselves) + /* get raw pre- and postfix (we evaluate it ourselves) */ Text->prefix = cfg_get_raw (section, "prefix", NULL); Text->postfix = cfg_get_raw (section, "postfix", NULL); - // compile pre- and postfix + /* compile pre- and postfix */ Compile (Text->prefix, &Text->pretree); Compile (Text->postfix, &Text->posttree); - // get raw expression (we evaluate it ourselves) + /* get raw expression (we evaluate it ourselves) */ Text->expression = cfg_get_raw (section, "expression", "''"); Compile (Text->expression, &Text->tree); - // field width, default 10 + /* field width, default 10 */ cfg_number (section, "width", 10, 0, 99999, &(Text->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. + /* 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, &(Text->precision)); - // field alignment: Left (default), Center, Right or Marquee + /* field alignment: Left (default), Center, Right or Marquee */ c = cfg_get (section, "align", "L"); switch (toupper(*c)) { case 'L': @@ -386,26 +392,26 @@ int widget_text_init (WIDGET *Self) } free (c); - // update interval (msec), default 1 sec, 0 stands for never + /* update interval (msec), default 1 sec, 0 stands for never */ cfg_number (section, "update", 1000, 0, 99999, &(Text->update)); - // limit update interval to min 10 msec + /* limit update interval to min 10 msec */ if (Text->update > 0 && Text->update < 10) Text->update = 10; - // marquee scroller speed: interval (msec), default 500msec + /* marquee scroller speed: interval (msec), default 500msec */ if (Text->align==ALIGN_MARQUEE) { cfg_number (section, "speed", 500, 10, 99999, &(Text->speed)); } - // buffer + /* buffer */ Text->buffer=malloc(Text->width+1); free (section); Self->data=Text; - // add update timer, use one-shot if 'update' is zero + /* add update timer, use one-shot if 'update' is zero */ timer_add (widget_text_update, Self, Text->update, Text->update==0); - // a marquee scroller has its own timer and callback + /* a marquee scroller has its own timer and callback */ if (Text->align==ALIGN_MARQUEE) { timer_add (widget_text_scroll, Self, Text->speed, 0); } |