add cre view mode support in frontend

frontend/document/credocument.lua

@@ -6,6 +6,7 @@ CreDocument = Document:new{
 
 	line_space_percent = 100,
 	default_font = "Droid Sans Fallback",
+	view_mode = "page",
 }
 
 -- NuPogodi, 20.05.12: inspect the zipfile content
@@ -68,8 +69,13 @@ function CreDocument:init()
 	end
 	local style_sheet = "./data/"..file_type..".css"
 
+	-- view_mode default to page mode
+	local view_mode = 1
+	if self.view_mode == "scroll" then
+		view_mode = 0
+	end
 	ok, self._document = pcall(cre.openDocument, self.file, style_sheet,
-				Screen:getWidth(), Screen:getHeight())
+				Screen:getWidth(), Screen:getHeight(), view_mode)
 	if not ok then
 		self.error_message = self.doc -- will contain error message
 		return

frontend/ui/reader/readerview.lua

@@ -57,7 +57,8 @@ function ReaderView:paintTo(bb, x, y)
 			self.state.pos)
 	end
 	-- dim last read area
-	if self.dim_area.w ~= 0 and self.dim_area.h ~= 0 then
+	if self.document.view_mode ~= "page" 
+	and self.dim_area.w ~= 0 and self.dim_area.h ~= 0 then
 		bb:dimRect(
 			self.dim_area.x, self.dim_area.y,
 			self.dim_area.w, self.dim_area.h

frontend/ui/readerui.lua

@@ -47,7 +47,8 @@ function ReaderUI:init()
 	self[1] = ReaderView:new{
 		dialog = self.dialog,
 		dimen = self.dimen,
-		ui = self
+		ui = self,
+		document = self.document,
 	}
 	-- rotation controller
 	self[2] = ReaderRotation:new{