added --begin-top option to force view point at the top of the image

src/help.raw

@@ -24,6 +24,7 @@ OPTIONS
                            before attempting to display anything
  -., --scale-down          Automatically scale down images to fit screen size
  -F, --fullscreen          Make the window full screen
+     --begin-top           Force view point at the top of the image
  -Z, --auto-zoom           Zoom picture to screen size in fullscreen/geom mode
      --zoom PERCENT        Zooms images by a PERCENT, when in full screen
                            mode or when window geometry is fixed. If combined

src/options.c

@@ -414,6 +414,7 @@ static void feh_parse_option_array(int argc, char **argv, int finalrun)
 		{"xinerama-index", 1, 0, 239},
 		{"insecure"      , 0, 0, 240},
 		{"no-recursive"  , 0, 0, 241},
+		{"begin-top"      , 0, 0, 242},
 		{"cache-size"    , 1, 0, 243},
 		{"version-sort"  , 0, 0, 246},
 		{0, 0, 0, 0}
@@ -773,6 +774,8 @@ static void feh_parse_option_array(int argc, char **argv, int finalrun)
 			break;
 		case 241:
 			opt.recursive = 0;
+		case 242:
+			opt.begin_top = 1;
 			break;
 		case 243:
 			opt.cache_size = atoi(optarg);

src/options.h

@@ -113,6 +113,7 @@ struct __fehoptions {
 	unsigned int geom_h;
 	int default_zoom;
 	int zoom_mode;
+	int begin_top;
 	unsigned char adjust_reload;
 	int xinerama_index;
 

src/winwidget.c

@@ -551,8 +551,15 @@ void winwidget_render_image(winwidget winwid, int resize, int force_alias)
 	}
 	else if (need_center && !winwid->full_screen
 			&& (winwid->type != WIN_TYPE_THUMBNAIL) && !opt.keep_zoom_vp) {
+			int image_smaller;
 		winwid->im_x = (int) (winwid->w - (winwid->im_w * winwid->zoom)) >> 1;
 		winwid->im_y = (int) (winwid->h - (winwid->im_h * winwid->zoom)) >> 1;
+
+		image_smaller = ((winwid->im_w < winwid->w)
+				&& (winwid->im_h < winwid->h));
+
+		if (!image_smaller && opt.begin_top)
+			winwid->im_y = 0;
 	}
 
 	/* Now we ensure only to render the area we're looking at */