From: Simon A. Eugster <simon.eu@gmail.com>
Date: Mon, 13 Dec 2010 08:20:09 +0000 (+0000)
Subject: Audio spectrum: Fixed crash when the mouse cursor moved outside the widget while... 
X-Git-Url: https://git.sesse.net/?a=commitdiff_plain;h=775e3b8521a841f1cfc72a4e154e530f62c60505;p=kdenlive

Audio spectrum: Fixed crash when the mouse cursor moved outside the widget while calculating

svn path=/trunk/kdenlive/; revision=5171
---

diff --git a/src/audioscopes/audiospectrum.cpp b/src/audioscopes/audiospectrum.cpp
index 6122b766..ef8b44be 100644
--- a/src/audioscopes/audiospectrum.cpp
+++ b/src/audioscopes/audiospectrum.cpp
@@ -20,7 +20,7 @@
 
 #include <iostream>
 
-// Enables debugging, like writing a GNU Octave .m file to /tmp
+// Enables debugging
 //#define DEBUG_AUDIOSPEC
 
 #ifdef DEBUG_AUDIOSPEC
@@ -284,7 +284,9 @@ QImage AudioSpectrum::renderHUD(uint)
         bool drawDb = false;
 
         m_lastFFTLock.acquire();
-        if (m_lastFFT.size() > 0) {
+        // We need to test whether the mouse is inside the widget
+        // because the position could already have changed in the meantime (-> crash)
+        if (m_lastFFT.size() > 0 && mouseX >= 0 && mouseX < m_innerScopeRect.width()) {
             uint right = ((float) m_freqMax)/(m_freq) * (m_lastFFT.size() - 1);
             QVector<float> dbMap = AudioSpectrum::interpolatePeakPreserving(m_lastFFT, m_innerScopeRect.width(), 0, right, -120);