From 8b8fbde300b9bc3d7790593d9a5b01c97fb86c51 Mon Sep 17 00:00:00 2001
From: Aleksei Kanash <sc.kanash.aleksei@gmail.com>
Date: Tue, 7 Aug 2012 15:06:22 +0300
Subject: [PATCH] SANKORE-343. Maximum zoom was limited to 9.

---
 src/board/UBBoardController.cpp | 11 +++++++++--
 src/core/UB.h                   |  2 +-
 2 files changed, 10 insertions(+), 3 deletions(-)

diff --git a/src/board/UBBoardController.cpp b/src/board/UBBoardController.cpp
index da904560..0d23d9f9 100644
--- a/src/board/UBBoardController.cpp
+++ b/src/board/UBBoardController.cpp
@@ -687,9 +687,16 @@ void UBBoardController::zoom(const qreal ratio, QPointF scenePoint)
     QPointF offset = scenePoint - viewCenter;
     QPointF scalledOffset = offset / ratio;
 
-    mControlView->scale(ratio, ratio);
+    qreal currentZoom = ratio * mControlView->viewportTransform().m11() / mSystemScaleFactor;
 
-    qreal currentZoom = mControlView->viewportTransform().m11() / mSystemScaleFactor;
+    qreal usedRatio = ratio;
+    if (currentZoom > UB_MAX_ZOOM)
+    {
+        currentZoom = UB_MAX_ZOOM;
+        usedRatio = currentZoom * mSystemScaleFactor / mControlView->viewportTransform().m11();
+    }
+
+    mControlView->scale(usedRatio, usedRatio);
 
     QPointF newCenter = scenePoint - scalledOffset;
 
diff --git a/src/core/UB.h b/src/core/UB.h
index 862a63eb..78241f46 100644
--- a/src/core/UB.h
+++ b/src/core/UB.h
@@ -18,7 +18,7 @@
 
 #include <QtGui>
 
-#define UB_MAX_ZOOM 15
+#define UB_MAX_ZOOM 9
 
 struct UBMimeType
 {