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94 lines
2.9 KiB
C++
94 lines
2.9 KiB
C++
/* ============================================================
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*
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* This file is part of the KDE project
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*
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* Date : 2009-11-13
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* Description : Sane interface for KDE
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*
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* Copyright (C) 2009 by Kare Sars <kare dot sars at iki dot fi>
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) version 3, or any
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* later version accepted by the membership of KDE e.V. (or its
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* successor approved by the membership of KDE e.V.), which shall
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* act as a proxy defined in Section 6 of version 3 of the license.
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*
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* This library 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 GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this program. If not, see <http://www.gnu.org/licenses/>.
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*
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* ============================================================ */
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#ifndef KSANE_PREVIEW_THREAD_H
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#define KSANE_PREVIEW_THREAD_H
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// Sane includes
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extern "C"
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{
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#include <sane/saneopts.h>
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#include <sane/sane.h>
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}
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#include <QThread>
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#include <QMutex>
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#include <QImage>
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#define PREVIEW_READ_CHUNK_SIZE 100000
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namespace KSaneIface
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{
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class KSanePreviewThread: public QThread
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{
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Q_OBJECT
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public:
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typedef enum
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{
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READ_ON_GOING,
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READ_ERROR,
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READ_CANCEL,
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READ_READY
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} ReadStatus;
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KSanePreviewThread(SANE_Handle handle, QImage *img);
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void run();
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void setPreviewInverted(bool);
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void cancelScan();
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int scanProgress();
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bool saneStartDone();
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bool imageResized();
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SANE_Status status;
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QMutex imgMutex;
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private:
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void readData();
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void copyToPreviewImg(int readBytes);
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SANE_Byte m_readData[PREVIEW_READ_CHUNK_SIZE];
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int m_frameSize;
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int m_frameRead;
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int m_dataSize;
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int m_frame_t_count;
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int m_pixel_x;
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int m_pixel_y;
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int m_px_colors[3];
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int m_px_c_index;
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SANE_Parameters m_params;
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QImage *m_img;
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SANE_Handle m_saneHandle;
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bool m_invertColors;
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ReadStatus m_readStatus;
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// int m_scanProgress;
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bool m_saneStartDone;
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bool m_imageResized;
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};
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}
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#endif
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