widget.browserview: fixed padding_right option

kind of dirty. need to find a way to hide windows completely
when not needed. ;o;

ranger/gui/widgets/browsercolumn.py

@@ -113,6 +113,8 @@ def has_preview(self):
 	def poke(self):
 		Widget.poke(self)
 		self.target = self.env.at_level(self.level)
+		if self.target and self.target.is_file and self.has_preview():
+			self.visible = True
 
 	def draw(self):
 		"""Call either _draw_file() or _draw_directory()"""

ranger/gui/widgets/browserview.py

@@ -235,6 +235,10 @@ def resize(self, y, x, hei, wid):
 			if i == last_i:
 				if not cut_off:
 					wid = int(self.wid - left + 1 - pad)
+				else:
+					self.columns[i].resize(pad, left - 1, hei - pad * 2, 1)
+					self.columns[i].visible = False
+					continue
 
 			if i == last_i - 1:
 				self.pager.resize(pad, left, hei - pad * 2, \