From 5b38caed00058ec3de7952b6ed806644f3a1674f Mon Sep 17 00:00:00 2001
From: David Capello <davidcapello@gmail.com>
Date: Wed, 30 Dec 2015 10:29:13 -0300
Subject: [PATCH] Reduce code in StateWithWheelBehavior::onMouseWheel()

---
 src/app/ui/editor/state_with_wheel_behavior.cpp | 11 +++--------
 1 file changed, 3 insertions(+), 8 deletions(-)

diff --git a/src/app/ui/editor/state_with_wheel_behavior.cpp b/src/app/ui/editor/state_with_wheel_behavior.cpp
index 030aa59cd..4627c8ae5 100644
--- a/src/app/ui/editor/state_with_wheel_behavior.cpp
+++ b/src/app/ui/editor/state_with_wheel_behavior.cpp
@@ -20,6 +20,7 @@
 #include "app/ui_context.h"
 #include "doc/palette.h"
 #include "ui/message.h"
+#include "ui/theme.h"
 
 namespace app {
 
@@ -111,14 +112,8 @@ bool StateWithWheelBehavior::onMouseWheel(Editor* editor, MouseMessage* msg)
     case WHEEL_ZOOM: {
       MouseMessage* mouseMsg = static_cast<MouseMessage*>(msg);
       render::Zoom zoom = editor->zoom();
-      if (dz < 0) {
-        while (dz++ < 0)
-          zoom.in();
-      }
-      else {
-        while (dz-- > 0)
-          zoom.out();
-      }
+
+      zoom = render::Zoom::fromLinearScale(zoom.linearScale() - dz);
 
       if (editor->zoom() != zoom) {
         bool center = Preferences::instance().editor.zoomFromCenterWithWheel();