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Don't try and set FFT size when no file is loaded, fixes #20

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This commit is contained in:
Mike Walters
2015-07-23 17:18:54 +01:00
parent 223378a30b
commit 9ca3d8edb9
2 changed files with 9 additions and 4 deletions
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12
spectrogram.cpp
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@@ -10,6 +10,7 @@
Spectrogram::Spectrogram()
{
inputSource = nullptr;
fftSize = 1024;
powerMax = 0.0f;
powerMin = -50.0f;
}
@@ -26,7 +27,7 @@ void Spectrogram::pickFile()
);
if (fileName != nullptr) {
try {
InputSource *newFile = new InputSource(fileName.toUtf8().constData(), (inputSource != nullptr) ? inputSource->GetWidth() : 1024);
InputSource *newFile = new InputSource(fileName.toUtf8().constData(), fftSize);
delete inputSource;
inputSource = newFile;
resize(inputSource->GetWidth(), inputSource->GetHeight());
@@ -135,9 +136,12 @@ void Spectrogram::paintEvent(QPaintEvent *event)
void Spectrogram::setFFTSize(int size)
{
inputSource->setFFTSize(size);
update();
resize(inputSource->GetWidth(), inputSource->GetHeight());
fftSize = size;
if (inputSource != nullptr) {
inputSource->setFFTSize(size);
update();
resize(inputSource->GetWidth(), inputSource->GetHeight());
}
}
void Spectrogram::setPowerMax(int power)