Write values dialog preparations

2021-05-09 17:53:06 +02:00
parent c686ac87f4
commit 3a3c385a55
10 changed files with 376 additions and 1 deletions
@@ -0,0 +1,134 @@
+#include "changevaluesmodel.h"
+
+// Qt includes
+#include <QDebug>
+
+ChangeValuesModel::ChangeValuesModel(QObject *parent) :
+    QAbstractTableModel{parent}
+{
+    m_registers.resize(m_count);
+    qDebug() << "size =" << m_registers.size();
+}
+
+ChangeValuesModel::~ChangeValuesModel()
+{
+    qDebug() << "called";
+}
+
+QModelIndex ChangeValuesModel::index(int row, int column, const QModelIndex &parent) const
+{
+    Q_ASSERT(!parent.isValid());
+    return createIndex(row, column);
+}
+
+QModelIndex ChangeValuesModel::parent(const QModelIndex &child) const
+{
+    Q_UNUSED(child)
+    return {};
+}
+
+int ChangeValuesModel::rowCount(const QModelIndex &parent) const
+{
+    Q_ASSERT(!parent.isValid());
+    return m_count;
+}
+
+int ChangeValuesModel::columnCount(const QModelIndex &parent) const
+{
+    Q_ASSERT(!parent.isValid());
+    return 1;
+}
+
+QVariant ChangeValuesModel::data(const QModelIndex &index, int role) const
+{
+    Q_ASSERT(index.isValid());
+
+    switch (role)
+    {
+    case Qt::DisplayRole:
+        return QString::number(m_registers.at(m_firstRegister + index.row()));
+    case Qt::EditRole:
+        return m_registers.at(m_firstRegister + index.row());
+    }
+
+    return {};
+}
+
+QVariant ChangeValuesModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    switch (orientation)
+    {
+    case Qt::Horizontal:
+        Q_ASSERT(section == 0);
+
+        switch (role)
+        {
+        case Qt::DisplayRole:
+        case Qt::EditRole:
+            switch (section)
+            {
+            case 0: return tr("Value");
+            }
+            __builtin_unreachable();
+            break;
+        }
+
+        break;
+
+    case Qt::Vertical:
+
+        switch (role)
+        {
+        case Qt::DisplayRole: return QString::number(m_firstRegister + section);
+        case Qt::EditRole:    return m_firstRegister + section;
+        }
+
+    default:
+        __builtin_unreachable();
+    }
+
+    return {};
+}
+
+Qt::ItemFlags ChangeValuesModel::flags(const QModelIndex &index) const
+{
+    return QAbstractTableModel::flags(index) | Qt::ItemIsEditable;
+}
+
+bool ChangeValuesModel::setData(const QModelIndex &index, const QVariant &value, int role)
+{
+    qDebug() << "setData" << index << value << Qt::ItemDataRole(role);
+
+    if (!value.canConvert<uint16_t>())
+    {
+        qCritical() << "wrong type";
+        return false;
+    }
+
+    switch (role)
+    {
+    case Qt::EditRole:
+        m_registers[index.row() + m_firstRegister] = value.value<uint16_t>();
+        return true;
+    }
+
+    return false;
+}
+
+void ChangeValuesModel::setFirstRegister(uint16_t firstRegister)
+{
+    beginResetModel();
+    m_firstRegister = firstRegister;
+    if (m_registers.size() < m_firstRegister + m_count)
+        m_registers.resize(m_firstRegister + m_count);
+    endResetModel();
+}
+
+void ChangeValuesModel::setCount(uint16_t count)
+{
+    beginResetModel();
+    m_count = count;
+    if (m_registers.size() < m_firstRegister + m_count)
+        m_registers.resize(m_firstRegister + m_count);
+    endResetModel();
+}