62 lines
1.2 KiB
C++
62 lines
1.2 KiB
C++
// Copyright (C) 2018 The Qt Company Ltd.
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// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
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#include "imagemodel.h"
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ImageModel::ImageModel(QObject *parent)
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: QAbstractTableModel(parent)
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{
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}
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QString ImageModel::source() const
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{
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return m_source;
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}
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//! [setsource]
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void ImageModel::setSource(const QString &source)
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{
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if (m_source == source)
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return;
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beginResetModel();
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m_source = source;
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m_image.load(m_source);
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endResetModel();
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}
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//! [setsource]
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//! [rowcolcount]
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int ImageModel::rowCount(const QModelIndex &parent) const
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{
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if (parent.isValid())
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return 0;
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return m_image.height();
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}
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int ImageModel::columnCount(const QModelIndex &parent) const
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{
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if (parent.isValid())
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return 0;
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return m_image.width();
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}
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//! [rowcolcount]
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//! [data]
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QVariant ImageModel::data(const QModelIndex &index, int role) const
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{
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if (!index.isValid() || role != Qt::DisplayRole)
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return QVariant();
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return qGray(m_image.pixel(index.column(), index.row()));
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}
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//! [data]
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QVariant ImageModel::headerData(int /* section */, Qt::Orientation /* orientation */,
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int role) const
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{
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if (role == Qt::SizeHintRole)
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return QSize(1, 1);
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return QVariant();
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}
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