1 files changed, 146 insertions, 0 deletions
diff --git a/ranger/gui/wdisplay.py b/ranger/gui/wdisplay.py
new file mode 100644
index 00000000..95014d51
--- /dev/null
+++ b/ranger/gui/wdisplay.py
@@ -0,0 +1,146 @@
+from ranger.gui.color import color_pairs
+from ranger.gui.widget import Widget as SuperClass
+import curses
+#from ranger.color import color
+
+class WDisplay(SuperClass):
+	def __init__(self, win, level):
+		SuperClass.__init__(self,win)
+		self.level = level
+		self.main_display = False
+		self.display_infostring = False
+		self.scroll_begin = 0
+
+	def feed_env(self, env):
+		self.target = env.at_level(self.level)
+		self.show_hidden = env.opt['show_hidden']
+		self.scroll_offset = env.opt['scroll_offset']
+		self.directories_first = env.opt['directories_first']
+		self.preview_files = env.opt['preview_files']
+
+	def draw(self):
+		from ranger.file import File
+		from ranger.directory import Directory
+
+		if self.target is None:
+			pass
+		elif type(self.target) == File:
+			self.draw_file()
+		elif type(self.target) == Directory:
+			self.draw_directory()
+		else:
+			self.win.addnstr(self.y, self.x, "unknown type.", self.wid)
+
+	def draw_file(self):
+		if not self.target.accessible:
+			self.win.addnstr(self.y, self.x, "not accessible", self.wid)
+			return
+		
+		if self.preview_files:
+			try:
+				if self.target.size < 1024 * 20:
+					f = open(self.target.path, 'r')
+					for line in range(self.hei):
+						read = f.readline().expandtabs()
+						self.win.addnstr(self.y + line, self.x, read, self.wid)
+			except:
+				pass
+
+		else:
+			self.win.addnstr(self.y, self.x, "this is a file.", self.wid)
+
+	def draw_directory(self):
+		from ranger.directory import Directory
+		self.target.show_hidden = self.show_hidden
+		self.target.load_content_if_outdated()
+		self.target.directories_first = self.directories_first
+		self.target.sort_if_outdated()
+		main_display = self.main_display
+
+		if self.target.empty():
+			self.color(bg=1)
+			self.win.addnstr(self.y, self.x, "empty", self.wid)
+			self.color()
+			return
+
+		if not self.target.accessible:
+			self.win.addnstr(self.y, self.x, "not accessible", self.wid)
+			return
+
+		self.set_scroll_begin()
+
+		selected_i = self.target.pointed_index
+		for line in range(self.hei):
+			i = line + self.scroll_begin
+			# last file reached?
+			try: drawed = self.target[i]
+			except IndexError: break
+
+			if isinstance(drawed, Directory):
+				self.color(fg = 4)
+			else:
+				self.color()
+
+			invert = i == selected_i
+			if invert:
+				self.win.attron(curses.A_REVERSE)
+
+			if self.main_display:
+				self.win.addnstr(
+						self.y + line,
+						self.x + 1,
+						' ' + drawed.basename + ' ',
+						self.wid - 2)
+			else:
+				self.win.addnstr(
+						self.y + line,
+						self.x,
+						drawed.basename,
+						self.wid)
+
+			if self.display_infostring and drawed.infostring:
+				info = drawed.infostring
+				x = self.x + self.wid - 1 - len(info)
+				if x > self.x:
+					self.win.addstr(self.y + line, x, str(info) + ' ')
+			self.win.attrset(0)
+
+	def get_scroll_begin(self):
+		offset = self.scroll_offset
+		dirsize = len(self.target)
+		winsize = self.hei
+		halfwinsize = winsize // 2
+		index = self.target.pointed_index or 0
+		original = self.target.scroll_begin
+		projected = index - original
+
+		upper_limit = winsize - 1 - offset
+		lower_limit = offset
+
+		if dirsize < winsize:
+			return 0
+
+		if halfwinsize < offset:
+			return min( dirsize - winsize, max( 0, index - halfwinsize ))
+
+		if original > dirsize - winsize:
+			self.target.scroll_begin = dirsize - winsize
+			return self.get_scroll_begin()
+
+		if projected < upper_limit and projected > lower_limit:
+			return original
+
+		if projected > upper_limit:
+			return min( dirsize - winsize,
+					original + (projected - upper_limit))
+
+		if projected < upper_limit:
+			return max( 0,
+					original - (lower_limit - projected))
+		
+		return original
+
+	def set_scroll_begin(self):
+		self.scroll_begin = self.get_scroll_begin()
+		self.target.scroll_begin = self.scroll_begin
+