[Freeciv-Dev] (PR#12608) gui_rect_iterate iterates over too large an area

["Jason Short" <jdorje@xxxxxxxxxxxxxxxxxxxxx>]

<URL: http://bugs.freeciv.org/Ticket/Display.html?id=12608 >

In non-iso view the area of iteration is larger than necessary.  I 
believe this fixes it.

-jason

? diff
Index: client/mapview_common.h
===================================================================
RCS file: /home/freeciv/CVS/freeciv/client/mapview_common.h,v
retrieving revision 1.107
diff -u -r1.107 mapview_common.h
--- client/mapview_common.h     23 Mar 2005 17:56:54 -0000      1.107
+++ client/mapview_common.h     23 Mar 2005 21:19:31 -0000
@@ -105,8 +105,8 @@
     const int _Wr = NORMAL_TILE_WIDTH;                                     \
     const int _Hr = NORMAL_TILE_HEIGHT;                                        
    \
     /* Don't divide by _r yet, to avoid integer rounding errors. */        \
-    const int GRI_x0 = DIVIDE(_gui_x0 * _r, _Wr) - 1;                      \
-    const int GRI_y0 = DIVIDE(_gui_y0 * _r, _Hr) - 1;                      \
+    const int GRI_x0 = DIVIDE(_gui_x0 * _r, _Wr) - _ratio / 2;         \
+    const int GRI_y0 = DIVIDE(_gui_y0 * _r, _Hr) - _ratio / 2;         \
     const int GRI_x1 = DIVIDE((_gui_x0 + _width) * _r + _Wr - 1,           \
                              _Wr) + _ratio;                                \
     const int GRI_y1 = DIVIDE((_gui_y0 + _height) * _r + _Hr - 1,          \