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Code Issues Releases Activity

Fix instead of workaround for d0edfa7004

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This commit is contained in:
Nikolas Garofil 2009-07-19 21:28:14 +02:00
parent 4139ec096f
commit f1c47e5fc4
2 changed files with 54 additions and 32 deletions
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9
doc/variables.xml
View File

@ -2583,11 +2583,10 @@
may also contain variables. 'step' is optional and defaults
to 1 if not set. If a var creates output on multiple lines
then the lines are placed behind each other separated with
a '|'-sign. The effect of $color is disabled inside scroll.
If you want spaces between the start and the end of 'text',
place them at the end of 'text' not at the front ("4 foobar"
can generate "arfo" but "4 foobar " will keep the space like
this "ar f").
a '|'-sign. If you change the textcolor inside $scroll it
will automatically have it's old value back at the end of
$scroll. The end and the start of text will be seperated by
'length' number of spaces.
<para /></listitem>
</varlistentry>
<varlistentry>

77
src/conky.c
View File

@ -2992,7 +2992,12 @@ static struct text_object *construct_text_object(const char *s,
} else {
obj->data.scroll.step = 1;
}
obj->data.scroll.text = strndup(arg + n1, text_buffer_size);
obj->data.scroll.text = malloc(strlen(arg + n1) + obj->data.scroll.show + 1);
for(n2 = 0; (unsigned int) n2 < obj->data.scroll.show; n2++) {
obj->data.scroll.text[n2] = ' ';
}
obj->data.scroll.text[n2] = 0;
strcat(obj->data.scroll.text, arg + n1);
obj->data.scroll.start = 0;
obj->sub = malloc(sizeof(struct text_object));
extract_variable_text_internal(obj->sub,
@ -5792,50 +5797,68 @@ static void generate_text_internal(char *p, int p_max_size,
snprintf(p, p_max_size, "%s", buf);
}
OBJ(scroll) {
unsigned int j, k, colorchanges = 0;
char *tmp, buf[max_user_text];
unsigned int j, colorchanges = 0, frontcolorchanges = 0, visibcolorchanges = 0, strend;
char *pwithcolors;
char buf[max_user_text];
generate_text_internal(buf, max_user_text,
*obj->sub, cur);
if (strlen(buf) <= obj->data.scroll.show) {
snprintf(p, p_max_size, "%s", buf);
break;
}
for(j = 0; buf[j] != 0; j++) {
switch(buf[j]) {
case '\n': //place all the lines behind each other with LINESEPARATOR between them
#define LINESEPARATOR '|'
buf[j]=LINESEPARATOR;
break;
case 1: //make sure $color isn't treated like a char
strfold(buf+j, 1);
case 1: //every 1 is a color change (1, not '1')
colorchanges++;
break;
}
}
//scroll the output obj->data.scroll.start places by copying that many chars from
//the front of the string to tmp, scrolling the rest to the front and placing tmp
//at the back of the string
tmp = calloc(obj->data.scroll.start + 1, sizeof(char));
strncpy(tmp, buf, obj->data.scroll.start); tmp[obj->data.scroll.start] = 0;
for(j = obj->data.scroll.start; buf[j] != 0; j++){
buf[j - obj->data.scroll.start] = buf[j];
//no scrolling necessary if the length of the text to scroll is too short
if (strlen(buf) - colorchanges <= obj->data.scroll.show) {
snprintf(p, p_max_size, "%s", buf);
break;
}
strcpy(&buf[j - obj->data.scroll.start], tmp);
free(tmp);
//only show the requested number of chars
if(obj->data.scroll.show < j) {
for(k = 0; k < colorchanges; k++) {
buf[obj->data.scroll.show + k] = 1;
//make sure a colorchange at the front is not part of the string we are going to show
while(*(buf + obj->data.scroll.start) == 1) {
obj->data.scroll.start++;
}
//place all chars that should be visible in p, including colorchanges
for(j=0; j < obj->data.scroll.show + visibcolorchanges; j++) {
p[j] = *(buf + obj->data.scroll.start + j);
if(p[j] == 1) {
visibcolorchanges++;
}
buf[obj->data.scroll.show + colorchanges] = 0;
//if there is still room fill it with spaces
if( ! p[j]) break;
}
//next time, scroll a place more or reset scrolling if we are at the end
for(; j < obj->data.scroll.show + visibcolorchanges; j++) {
p[j] = ' ';
}
p[j] = 0;
//count colorchanges in front of the visible part and place that many colorchanges in front of the visible part
for(j = 0; j < obj->data.scroll.start; j++) {
if(buf[j] == 1) frontcolorchanges++;
}
pwithcolors=malloc(strlen(p) + 1 + colorchanges - visibcolorchanges);
for(j = 0; j < frontcolorchanges; j++) {
pwithcolors[j] = 1;
}
pwithcolors[j] = 0;
strcat(pwithcolors,p);
strend = strlen(pwithcolors);
//and place the colorchanges not in front or in the visible part behind the visible part
for(j = 0; j < colorchanges - frontcolorchanges - visibcolorchanges; j++) {
pwithcolors[strend + j] = 1;
}
pwithcolors[strend + j] = 0;
strcpy(p, pwithcolors);
free(pwithcolors);
//scroll
obj->data.scroll.start += obj->data.scroll.step;
if(obj->data.scroll.start >= j){
if(buf[obj->data.scroll.start] == 0){
obj->data.scroll.start = 0;
}
snprintf(p, p_max_size, "%s", buf);
//reset color when scroll is finished
new_fg(p + strlen(p), obj->data.scroll.resetcolor);
}
OBJ(combine) {