add change view mode feature for crereader

cre.cpp

@@ -46,9 +46,9 @@ static int initCache(lua_State *L) {
 static int openDocument(lua_State *L) {
 	const char *file_name = luaL_checkstring(L, 1);
 	const char *style_sheet = luaL_checkstring(L, 2);
-
 	int width = luaL_checkint(L, 3);
 	int height = luaL_checkint(L, 4);
+	LVDocViewMode view_mode = (LVDocViewMode)luaL_checkint(L, 5);
 	lString8 css;
 
 	CreDocument *doc = (CreDocument*) lua_newuserdata(L, sizeof(CreDocument));
@@ -63,7 +63,7 @@ static int openDocument(lua_State *L) {
 			doc->text_view->setStyleSheet(css);
 		}
 	}
-	doc->text_view->setViewMode(DVM_SCROLL, -1);
+	doc->text_view->setViewMode(view_mode, -1);
 	doc->text_view->Resize(width, height);
 	doc->text_view->LoadDocument(file_name);
 	doc->dom_doc = doc->text_view->getDocument();

crereader.lua

@@ -14,6 +14,7 @@ CREReader = UniReader:new{
 	font_zoom = 0,
 
 	line_space_percent = 100,
+	view_mode = DCREREADER_VIEW_MODE,
 }
 
 function CREReader:init()
@@ -82,7 +83,7 @@ function CREReader:open(filename)
 		file_type = "cr3"
 	end
 	local style_sheet = "./data/"..file_type..".css"
-	ok, self.doc = pcall(cre.openDocument, filename, style_sheet, G_width, G_height)
+	ok, self.doc = pcall(cre.openDocument, filename, style_sheet, G_width, G_height, self.view_mode)
 	if not ok then
 		return false, "Error opening cre-document. " -- self.doc, will contain error message
 	end

defaults.lua

@@ -68,6 +68,9 @@ DPICVIEWER_COMICS_MODE_ENABLE = true
 DPICVIEWER_RTL_MODE_ENABLE = false
 DPICVIEWER_PAGE_MODE_ENABLE = false
 
+-- 0 for scroll mode, 1 for page mode
+DCREREADER_VIEW_MODE = 1
+
 -- supported extensions
 DPDFREADER_EXT = ";pdf;xps;cbz;zip;"
 DDJVUREADER_EXT = ";djvu;"