diff options
| -rw-r--r-- | src/libdraw/mkfile | 1 | ||||
| -rw-r--r-- | src/libdraw/scroll.c | 29 |
2 files changed, 30 insertions, 0 deletions
diff --git a/src/libdraw/mkfile b/src/libdraw/mkfile index e734fd5f..fbbe68e4 100644 --- a/src/libdraw/mkfile +++ b/src/libdraw/mkfile @@ -42,6 +42,7 @@ OFILES=\ rectclip.$O\ replclipr.$O\ rgb.$O\ + scroll.$O\ string.$O\ stringbg.$O\ stringsubfont.$O\ diff --git a/src/libdraw/scroll.c b/src/libdraw/scroll.c new file mode 100644 index 00000000..ea0aa25c --- /dev/null +++ b/src/libdraw/scroll.c @@ -0,0 +1,29 @@ +#include <u.h> +#include <libc.h> +#include <draw.h> + +int +mousescrollsize(int maxlines) +{ + static int lines, pcnt; + char *mss; + + if(lines == 0 && pcnt == 0){ + mss = getenv("mousescrollsize"); + if(mss){ + if(strchr(mss, '%') != nil) + pcnt = atof(mss); + else + lines = atoi(mss); + free(mss); + } + if(lines == 0 && pcnt == 0) + lines = 1; + if(pcnt>=100) + pcnt = 100; + } + + if(lines) + return lines; + return pcnt * maxlines/100.0; +} |