1 #include "previewimageprovider.h"

     2 

     3 PreviewImageProvider::PreviewImageProvider()

     4         : QQuickImageProvider(QQuickImageProvider::Pixmap)

     5 {

     6 }

     7 

     8 QPixmap PreviewImageProvider::requestPixmap(const QString &id, QSize *size, const QSize &requestedSize)

     9 {

    10     Q_UNUSED(id);

    11     Q_UNUSED(requestedSize);

    12 

    13     if (size)

    14         *size = m_px.size();

    15 

    16     return m_px;

    17 }

    18 

    19 void PreviewImageProvider::setPixmap(const QByteArray &px)

    20 {

    21     QVector<QRgb> colorTable;

    22     colorTable.resize(256);

    23     for(int i = 0; i < 256; ++i)

    24         colorTable[i] = qRgba(255, 255, 0, i);

    25 

    26     const quint8 *buf = (const quint8*) px.constData();

    27     QImage im(buf, 256, 128, QImage::Format_Indexed8);

    28     im.setColorTable(colorTable);

    29 

    30     m_px = QPixmap::fromImage(im, Qt::ColorOnly);

    31     //QPixmap pxres(px.size());

    32     //QPainter p(&pxres);

    33 

    34     //p.fillRect(pxres.rect(), linearGrad);

    35     //p.drawPixmap(0, 0, px);

    36 }