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54 lines
1.1 KiB
C++
54 lines
1.1 KiB
C++
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// Copyright (C) 2016 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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//! [0]
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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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//! [0]
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//! [1]
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void ImageModel::setImage(const QImage &image)
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{
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beginResetModel();
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modelImage = image;
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endResetModel();
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}
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//! [1]
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//! [2]
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int ImageModel::rowCount(const QModelIndex & /* parent */) const
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{
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return modelImage.height();
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}
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int ImageModel::columnCount(const QModelIndex & /* parent */) const
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//! [2] //! [3]
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{
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return modelImage.width();
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}
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//! [3]
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//! [4]
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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(modelImage.pixel(index.column(), index.row()));
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}
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//! [4]
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//! [5]
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QVariant ImageModel::headerData(int /* section */,
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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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//! [5]
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