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# ROCK Linux: rock-src/package/jimmy/zgv/mousexy-fix.patch
# ROCK Linux is Copyright (C) 1998 - 2006 Clifford Wolf
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--- ./src/readnbkey.c.orig	2003-04-05 16:40:39.000000000 +0300
+++ ./src/readnbkey.c	2003-08-10 12:27:23.000000000 +0300
@@ -62,7 +62,7 @@
 
 
 /* saved mx/my in in range 0..MPOS_SAVE_MAX. */
-#define MPOS_SAVE_MAX	16383
+#define MPOS_SAVE_MAX	16383.0
 
 
 static int old_click_status=0,new_click_status=0;
@@ -276,7 +276,8 @@
 }
 
 
-static int saved_mx=0,saved_my=0;
+/* All save/restore calculations are done in float to avoid int truncating. */
+static float saved_mx=0.0,saved_my=0.0;
 
 /* save mouse pointer's current position. used when switching over
  * to the panning-follows-mouse model used by vgadisp.c, so that on
@@ -288,7 +289,7 @@
  */
 void save_mouse_pos()
 {
-int mx,my;
+float mx,my;
 
 if(!has_mouse) return;
 
@@ -297,13 +298,13 @@
  */
 if(vga_getcurrentmode()==TEXT)
   {
-  mx=MPOS_SAVE_MAX/2;
-  my=MPOS_SAVE_MAX/2;
+  mx=MPOS_SAVE_MAX/2.0;
+  my=MPOS_SAVE_MAX/2.0;
   }
 else
   {
-  mx=(mouse_getx()*MPOS_SAVE_MAX)/(vga_getxdim()-1);
-  my=(mouse_gety()*MPOS_SAVE_MAX)/(vga_getydim()-1);
+  mx=(mouse_getx()*MPOS_SAVE_MAX)/(vga_getxdim()-1.0);
+  my=(mouse_gety()*MPOS_SAVE_MAX)/(vga_getydim()-1.0);
   }
 /* just in case */
 if(mx>MPOS_SAVE_MAX) mx=MPOS_SAVE_MAX;
@@ -323,12 +324,13 @@
 /* restore saved pos assuming given size screen */
 void restore_mouse_pos_with_size(int width,int height)
 {
-int mx,my;
+extern float roundf(float x);	/* may be missing from math.h, must be declared */
+float mx,my;
 
 if(!has_mouse) return;
 
-mx=(saved_mx*(width-1))/MPOS_SAVE_MAX;
-my=(saved_my*(height-1))/MPOS_SAVE_MAX;
+mx=roundf((saved_mx*(width-1.0))/MPOS_SAVE_MAX);
+my=roundf((saved_my*(height-1.0))/MPOS_SAVE_MAX);
 /* just in case */
 if(mx>width-1) mx=width-1;
 if(my>height-1) my=height-1;