From 61bbd91fab4c56959d29d40f15e8caa5798cb670 Mon Sep 17 00:00:00 2001
From: =?UTF-8?q?Vladim=C3=ADr=20Vondru=C5=A1?= <mosra@centrum.cz>
Date: Mon, 30 Jun 2014 01:18:38 +0200
Subject: [PATCH] framebuffer: ignore mouse move event when nothing is pressed.

I switched GLUT for SDL2 and didn't bother to test, apparently.
---
 src/framebuffer/FramebufferExample.cpp | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/framebuffer/FramebufferExample.cpp b/src/framebuffer/FramebufferExample.cpp
index df30513b4..b19ed2b46 100644
--- a/src/framebuffer/FramebufferExample.cpp
+++ b/src/framebuffer/FramebufferExample.cpp
@@ -112,6 +112,8 @@ void FramebufferExample::mousePressEvent(MouseEvent& event) {
 }
 
 void FramebufferExample::mouseMoveEvent(MouseMoveEvent& event) {
+    if(!event.buttons()) return;
+
     billboard->translate(camera->projectionSize()*Vector2(event.position()-previous)/Vector2(camera->viewport())*Vector2(2.0f, -2.0f));
     previous = event.position();
     redraw();