From f6b3824fc2b80f2e2a7864c5b487b672a8aa2671 Mon Sep 17 00:00:00 2001
From: Bala Clark <balaclark@gmail.com>
Date: Thu, 8 Jul 2010 00:56:30 +0100
Subject: [PATCH] implemented vertical alignment for comics in manual mode

---
 scripts.js | 11 ++++++++---
 1 file changed, 8 insertions(+), 3 deletions(-)

diff --git a/scripts.js b/scripts.js
index 16111c2..e70274a 100644
--- a/scripts.js
+++ b/scripts.js
@@ -20,7 +20,6 @@ window.onload = function() {
 
 	book = new ComicBook("comic", pages, options);
 	book.draw();
-	book.zoom(.5);
 }
 
 window.onresize = function() {
@@ -160,11 +159,17 @@ function ComicBook(id, srcs, opts) {
 		if (canvas_width < window.innerWidth && options.zoomMode == "manual") {
 			offsetW = (window.innerWidth - page_width) / 2;
 			if (options.displayMode == "double") offsetW = offsetW - page_width / 2;
+			
+		}
+		
+		// work out a vertical position that will keep the pages always centred
+		if (canvas_height < window.innerHeight && options.zoomMode == "manual") {
+			offsetH = (window.innerHeight - page_height) / 2;
 		}
 		
 		// draw the page(s)
-		context.drawImage(page, offsetW, 0, page_width, page_height);
-		if (options.displayMode == "double" && typeof page2 == "object") context.drawImage(page2, page_width + offsetW, 0, page_width, page_height);
+		context.drawImage(page, offsetW, offsetH, page_width, page_height);
+		if (options.displayMode == "double" && typeof page2 == "object") context.drawImage(page2, page_width + offsetW, offsetH, page_width, page_height);
 		
 	}