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#include "previewimageprovider.h"
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PreviewImageProvider::PreviewImageProvider()
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: QQuickImageProvider(QQuickImageProvider::Pixmap) {}
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QPixmap PreviewImageProvider::requestPixmap(const QString &id, QSize *size,
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const QSize &requestedSize) {
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Q_UNUSED(id);
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Q_UNUSED(requestedSize);
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if (size) *size = m_px.size();
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return m_px;
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}
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void PreviewImageProvider::setPixmap(const QByteArray &px) {
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QVector<QRgb> colorTable;
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colorTable.resize(256);
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for (int i = 0; i < 256; ++i) colorTable[i] = qRgba(255, 255, 0, i);
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const quint8 *buf = (const quint8 *)px.constData();
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QImage im(buf, 256, 128, QImage::Format_Indexed8);
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im.setColorTable(colorTable);
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m_px = QPixmap::fromImage(im, Qt::ColorOnly);
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// QPixmap pxres(px.size());
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// QPainter p(&pxres);
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// p.fillRect(pxres.rect(), linearGrad);
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// p.drawPixmap(0, 0, px);
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}
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