--- dotneato/common/gdgen.c.orig	Sun Jun 20 15:39:41 2004
+++ dotneato/common/gdgen.c	Mon Jun 21 03:28:12 2004
@@ -497,8 +497,40 @@
                         ROUND(ep.x), ROUND(ep.y),
 			cstk[SP].pencolor);
         } else {
+	  	double angle;
+		angle = (Rot? 90.0 : 0.0);
+		if(Viewport.x>800) { // XXX dirty
+		  double where;
+		  int flip=0;
+		  pointf c;
+		  c.x=p.x;
+		  c.y=p.y;
+		  c=gdpt(c);
+		  where = atan2(c.y-Viewport.y/2,c.x-Viewport.x/2)/PI*180.0;
+		  //fprintf(stderr, "(%.1f,%.1f)%s,%.2f\n",mp.x-Viewport.x,mp.y-Viewport.y,str,where);
+		  if(fabs(where-90)<30 || fabs(where+90)<30) {
+		    angle=where;
+
+		    mp=c;
+
+		    // 把字轉正
+		    if(angle>90) {
+		      flip=-180;
+		    } else if(angle<-90) {
+		      flip=180;
+		    }
+		    if(flip) {
+		      mp.x+=line->width*cos(angle*PI/180.0);
+		      mp.y+=line->width*sin(angle*PI/180.0);
+		    }
+		    angle+=flip;
+
+		    angle=-angle; // 轉成 gd 座標系
+		  }
+		}
+		angle*=PI/180.0;
 		err = gdImageStringFT(im, brect, cstk[SP].pencolor,
-			fontlist, fontsz, (Rot? 90.0 : 0.0) * PI / 180.0,
+			fontlist, fontsz, angle,
 			ROUND(mp.x), ROUND(mp.y), str);
 		if (err) {
 			/* revert to builtin fonts */