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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR BSD-3-Clause
#include "registermodel.h"
enum { NumColumn = 0, RegistersColumn = 1, ColumnCount = 2, RowCount = 10 };
RegisterModel::RegisterModel(QObject *parent)
: QAbstractTableModel(parent)
, m_registers(RowCount, 0u)
{
}
int RegisterModel::rowCount(const QModelIndex &/*parent*/) const
{
return RowCount;
}
int RegisterModel::columnCount(const QModelIndex &/*parent*/) const
{
return ColumnCount;
}
QVariant RegisterModel::data(const QModelIndex &index, int role) const
{
if (!index.isValid() || index.row() >= RowCount || index.column() >= ColumnCount)
return QVariant();
Q_ASSERT(m_registers.count() == RowCount);
if (index.column() == NumColumn && role == Qt::DisplayRole)
return QString::number(index.row());
if (index.column() == RegistersColumn && role == Qt::DisplayRole)
return QString("0x%1").arg(QString::number(m_registers.at(index.row()), 16));
return QVariant();
}
QVariant RegisterModel::headerData(int section, Qt::Orientation orientation, int role) const
{
if (role != Qt::DisplayRole)
return QVariant();
if (orientation == Qt::Horizontal) {
switch (section) {
case NumColumn:
return tr("Address");
case RegistersColumn:
return tr("Registers");
default:
break;
}
}
return QVariant();
}
bool RegisterModel::setData(const QModelIndex &index, const QVariant &value, int role)
{
if (!index.isValid() || index.row() >= RowCount || index.column() >= ColumnCount)
return false;
Q_ASSERT(m_registers.count() == RowCount);
if (index.column() == RegistersColumn && role == Qt::EditRole) {
bool result = false;
quint16 newValue = value.toString().toUShort(&result, 16);
if (result)
m_registers[index.row()] = newValue;
emit dataChanged(index, index);
return result;
}
return false;
}
Qt::ItemFlags RegisterModel::flags(const QModelIndex &index) const
{
if (!index.isValid() || index.row() >= RowCount || index.column() >= ColumnCount)
return QAbstractTableModel::flags(index);
Qt::ItemFlags flags = QAbstractTableModel::flags(index);
if ((index.row() < m_address) || (index.row() >= (m_address + m_number)))
flags &= ~Qt::ItemIsEnabled;
if (index.column() == RegistersColumn)
return flags | Qt::ItemIsEditable;
return flags;
}
void RegisterModel::setStartAddress(int address)
{
m_address = address;
emit updateViewport();
}
void RegisterModel::setNumberOfValues(const QString &number)
{
m_number = number.toInt();
emit updateViewport();
}
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