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50
51#include "imagemodel.h"
52
53ImageModel::ImageModel(QObject *parent)
54 : QAbstractTableModel(parent)
55{
56}
57
58QString ImageModel::source() const
59{
60 return m_source;
61}
62
63//! [setsource]
64void ImageModel::setSource(const QString &source)
65{
66 if (m_source == source)
67 return;
68
69 beginResetModel();
70 m_source = source;
71 m_image.load(fileName: m_source);
72 endResetModel();
73}
74//! [setsource]
75
76//! [rowcolcount]
77int ImageModel::rowCount(const QModelIndex &parent) const
78{
79 if (parent.isValid())
80 return 0;
81 return m_image.height();
82}
83
84int ImageModel::columnCount(const QModelIndex &parent) const
85{
86 if (parent.isValid())
87 return 0;
88 return m_image.width();
89}
90//! [rowcolcount]
91
92
93//! [data]
94QVariant ImageModel::data(const QModelIndex &index, int role) const
95{
96 if (!index.isValid() || role != Qt::DisplayRole)
97 return QVariant();
98 return qGray(rgb: m_image.pixel(x: index.column(), y: index.row()));
99}
100//! [data]
101
102QVariant ImageModel::headerData(int /* section */, Qt::Orientation /* orientation */,
103 int role) const
104{
105 if (role == Qt::SizeHintRole)
106 return QSize(1, 1);
107 return QVariant();
108}
109

source code of qtdeclarative/examples/quick/tableview/pixelator/imagemodel.cpp