From 11d6445943f0fb69aeaf64f356b529a91f167595 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Luis=20Pe=C3=B1aranda?= <luis.penaranda@gmx.com>
Date: Wed, 23 Jan 2013 13:42:18 -0200
Subject: [PATCH] use mouse wheel to change fov

---
 openglcanvas.cpp | 7 +++++++
 openglcanvas.h   | 1 +
 2 files changed, 8 insertions(+)

diff --git a/openglcanvas.cpp b/openglcanvas.cpp
index ca83ae7..da7b7b4 100644
--- a/openglcanvas.cpp
+++ b/openglcanvas.cpp
@@ -608,6 +608,13 @@ void OpenGLCanvas::mouseMoveEvent(QMouseEvent *event){
     }
 }
 
+void OpenGLCanvas::wheelEvent(QWheelEvent *event){
+    if(event->orientation()==Qt::Vertical){
+        fov+=((double)event->delta())/60;
+        updateGL();
+    }
+}
+
 void OpenGLCanvas::paintGL(){
 
     float fov_rads = (fov/180.f)*1.5708f;
diff --git a/openglcanvas.h b/openglcanvas.h
index 364ce83..0ba1f5d 100644
--- a/openglcanvas.h
+++ b/openglcanvas.h
@@ -57,6 +57,7 @@ protected:
     void setShaders();
     void mousePressEvent(QMouseEvent *event);
     void mouseMoveEvent(QMouseEvent *event);
+    void wheelEvent(QWheelEvent *event);
 
 signals:
     void fps(QString newFPS);
-- 
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