small fix

[Simon Griph]

Someone missed to add extra conditions when changing from
unsigned to signed.


/Simon Griph

Index: libs/PictureImageLoader.c
===================================================================
RCS file: /home/cvs/fvwm/fvwm/libs/PictureImageLoader.c,v
retrieving revision 1.33
diff -u -r1.33 PictureImageLoader.c
--- libs/PictureImageLoader.c   16 Jul 2007 15:07:14 -0000      1.33
+++ libs/PictureImageLoader.c   19 Jul 2007 00:37:56 -0000
@@ -879,7 +879,8 @@
                fpa.mask = FPAM_NO_ALPHA | FPAM_MONOCHROME;
 
                /* Adjust the hot-spot if necessary */
-               if (x_hot >= width || y_hot >= height)
+               if (x_hot < 0 || x_hot >= width ||
+                   y_hot < 0 || y_hot >= height)
                {
                        FxpmImage xpm_im;
                        FxpmInfo xpm_info;
@@ -897,11 +898,11 @@
                                FxpmFreeXpmImage(&xpm_im);
                                FxpmFreeXpmInfo(&xpm_info);
                        }
-                       if (x_hot >= width)
+                       if (x_hot < 0 || x_hot >= width)
                        {
                                x_hot = width / 2;
                        }
-                       if (y_hot >= height)
+                       if (y_hot < 0 || y_hot >= height)
                        {
                                y_hot = height / 2;
                        }