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3f5e373ee4
I was having an issue with size of off_t on a multi-gigabit file. This may have been related to long being a signed 32 bits on MSVC. But I think there is good reason to use size_t here in general: https://stackoverflow.com/questions/10634629/what-are-the-usage-differences-between-size-t-and-off-t
50 lines
1.5 KiB
C++
50 lines
1.5 KiB
C++
/*
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* Copyright (C) 2016, Mike Walters <mike@flomp.net>
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*
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* This file is part of inspectrum.
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*
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* This program is free software: you can redistribute it and/or modify
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* it under the terms of the GNU General Public License as published by
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* the Free Software Foundation, either version 3 of the License, or
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* (at your option) any later version.
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*
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* This program is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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* GNU General Public License for more details.
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*
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* You should have received a copy of the GNU General Public License
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* along with this program. If not, see <http://www.gnu.org/licenses/>.
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*/
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#pragma once
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#include <memory>
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#include "abstractsamplesource.h"
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#include "plot.h"
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#include "util.h"
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class TracePlot : public Plot
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{
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Q_OBJECT
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public:
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TracePlot(std::shared_ptr<AbstractSampleSource> source);
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void paintMid(QPainter &painter, QRect &rect, range_t<size_t> sampleRange);
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std::shared_ptr<AbstractSampleSource> source() { return sampleSource; };
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signals:
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void imageReady(QString key, QImage image);
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public slots:
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void handleImage(QString key, QImage image);
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private:
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QSet<QString> tasks;
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const int tileWidth = 1000;
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QPixmap getTile(size_t tileID, size_t sampleCount);
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void drawTile(QString key, const QRect &rect, range_t<size_t> sampleRange);
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void plotTrace(QPainter &painter, const QRect &rect, float *samples, size_t count, int step);
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};
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