Use integers rather than floats everywhere

We don't need floating point precision if results are casted back to
integer. Instead, rearrange operations and do the integer division after
the multiplication.

Version numbers are terminating decimals anyway and can be stored using
two integers without losing any information.

Signed-off-by: Lukas Fleischer <calcurse@cryptocrack.de>

1 files changed, 2 insertions, 3 deletions

diff --git a/src/wins.c b/src/wins.c
index 2f04605..85666df 100644
--- a/src/wins.c
+++ b/src/wins.c
@@ -253,9 +253,8 @@ void wins_scrollwin_display(struct scrollwin *sw)
   const int visible_lines = sw->win.h - sw->pad.y - 1;
 
   if (sw->total_lines > visible_lines) {
-    float ratio = ((float)visible_lines) / ((float)sw->total_lines);
-    int sbar_length = (int)(ratio * visible_lines);
-    int highend = (int)(ratio * sw->first_visible_line);
+    int sbar_length = visible_lines * visible_lines / sw->total_lines;
+    int highend = visible_lines * sw->first_visible_line / sw->total_lines;
     int sbar_top = highend + sw->pad.y + 1;
 
     if ((sbar_top + sbar_length) > sw->win.h - 1)