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https://github.com/f4exb/sdrangel.git
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cddc8c9b83
Plot Sun and Moon on sky temperature chart. Plot markers on Galactic line-of-sight chart. Create animations from Galactic line-of-sight chart. Allow weather at antenna location to be downloaded from openweathermap.org Allow target to be entered as Galactic longitude / latitude. Add azimuth and elevation offsets to support scans around targets. Add S7, S8 and S9 targets. Refactor some code from GUI to main plugin, so computed values can be used in other plugins.
97 lines
3.4 KiB
C++
97 lines
3.4 KiB
C++
///////////////////////////////////////////////////////////////////////////////////
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// Copyright (C) 2021 Jon Beniston, M7RCE //
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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 as 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 V3 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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#ifndef INCLUDE_PNG_H
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#define INCLUDE_PNG_H
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#include <QByteArray>
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#include <QImage>
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#include "export.h"
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#include "util/crc.h"
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// PNG (Portable Network Graphics) utility code
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// Contains just enough functionality to support assembling APNG files (Animated PNGs)
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// from multiple PNGs (which can be created using Qt)
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class SDRBASE_API PNG {
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public:
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PNG();
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PNG(QByteArray data);
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void appendSignature();
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void appendEnd();
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void appendChunk(const char *type, QByteArray chunk);
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void append(QByteArray data);
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void appendInt(QByteArray& ba, quint32 value);
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void appendShort(QByteArray& ba, quint16 value);
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void appendInt(quint32 value);
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qint32 getInt(int index);
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qint32 crc(const char *type, const QByteArray data);
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qint32 typeStringToInt(const char *header);
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QString intToTypeString(quint32 type);
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void appendacTL(int frames, quint32 loops=0);
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void appendfcTL(quint32 seqNo, quint32 width, quint32 height, int fps, quint32 xOffset=0, quint32 yOffset=0);
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void appendfdAT(quint32 seqNo, const QByteArray& data);
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QByteArray data();
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bool checkSignature();
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int findChunk(const char *type, int startIndex=0);
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QByteArray getChunk(const char *type);
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QByteArray getChunks(const char *type);
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QList<QByteArray> getChunkData(const char *type);
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quint32 getWidth() const;
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quint32 getHeight() const;
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private:
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QByteArray m_signature = QByteArrayLiteral("\x89\x50\x4e\x47\x0d\x0a\x1a\x0a");
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QByteArray m_bytes;
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crc32 m_crc;
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quint32 m_width;
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quint32 m_height;
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};
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// Animated PNG
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class SDRBASE_API APNG {
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public:
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APNG(int frames) :
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m_frames(frames),
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m_frame(0),
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m_seqNo(0),
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m_ended(false)
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{
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m_png.appendSignature();
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}
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bool addImage(const QImage& image, int fps=5);
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bool save(const QString& fileName);
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private:
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PNG m_png;
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int m_frames; //!< Total number of frames in animation
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int m_frame; //!< Current frame number
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int m_seqNo; //!< Chunk sequence number
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bool m_ended; //!< IEND chunk has added
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};
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#endif // INCLUDE_PNG_H
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