Imported existing sources

2021-04-20 21:34:48 +02:00
parent 924f170ffd
commit 17c5213e73
8 changed files with 956 additions and 41 deletions
@@ -0,0 +1,128 @@
+#include "modbustablemodel.h"
+
+namespace {
+enum {
+    ColumnDecimal,
+    ColumnHex,
+    ColumnBinary,
+    ColumnAscii,
+    ColumnCount
+};
+}
+
+void ModbusTableModel::setResult(const QModbusDataUnit &result)
+{
+    beginResetModel();
+    m_result = result;
+    endResetModel();
+}
+
+QModelIndex ModbusTableModel::index(int row, int column, const QModelIndex &parent) const
+{
+    Q_ASSERT(!parent.isValid());
+    return createIndex(row, column);
+}
+
+QModelIndex ModbusTableModel::parent(const QModelIndex &child) const
+{
+    return {};
+}
+
+int ModbusTableModel::rowCount(const QModelIndex &parent) const
+{
+    Q_ASSERT(!parent.isValid());
+    return m_result.isValid() ? m_result.valueCount() : 0;
+}
+
+int ModbusTableModel::columnCount(const QModelIndex &parent) const
+{
+    Q_ASSERT(!parent.isValid());
+    return ColumnCount;
+}
+
+QVariant ModbusTableModel::data(const QModelIndex &index, int role) const
+{
+    Q_ASSERT(index.isValid());
+    Q_ASSERT(m_result.isValid());
+    Q_ASSERT(index.row() >= 0);
+    Q_ASSERT(index.row() < m_result.valueCount());
+    Q_ASSERT(index.column() >= 0);
+    Q_ASSERT(index.column() < ColumnCount);
+
+    const auto &values = m_result.values();
+    Q_ASSERT(index.row() < values.size());
+
+    const auto &value = values[index.row()];
+
+    switch (role)
+    {
+    case Qt::DisplayRole:
+        switch (index.column())
+        {
+        case ColumnDecimal: return QString::number(value);
+        case ColumnHex:     return QString::number(value, 16).rightJustified(4, '0').insert(2, ' ');
+        case ColumnBinary:  return QString::number(value, 2) .rightJustified(16, '0').insert(8, ' ');
+        case ColumnAscii:   return QString{QChar{(value&0xFF00)>>8}} + QChar{value&0x00FF};
+        }
+        __builtin_unreachable();
+        break;
+    case Qt::EditRole:
+        switch (index.column())
+        {
+        case ColumnDecimal:
+        case ColumnHex:
+        case ColumnBinary:
+        case ColumnAscii:
+            return value;
+        }
+        __builtin_unreachable();
+        break;
+    }
+
+    return {};
+}
+
+QVariant ModbusTableModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    switch (orientation)
+    {
+    case Qt::Horizontal:
+        Q_ASSERT(section >= 0);
+        Q_ASSERT(section < ColumnCount);
+
+        switch (role)
+        {
+        case Qt::DisplayRole:
+        case Qt::EditRole:
+            switch (section)
+            {
+            case ColumnDecimal: return tr("Decimal");
+            case ColumnHex:     return tr("Hex");
+            case ColumnBinary:  return tr("Binary");
+            case ColumnAscii:   return tr("Ascii");
+            }
+            __builtin_unreachable();
+            break;
+        }
+
+        break;
+
+    case Qt::Vertical:
+        Q_ASSERT(m_result.isValid());
+        Q_ASSERT(section >= 0);
+        Q_ASSERT(section < m_result.valueCount());
+
+        switch (role)
+        {
+        case Qt::DisplayRole: return QString::number(m_result.startAddress() + section);
+        case Qt::EditRole:    return m_result.startAddress() + section;
+        }
+
+        break;
+
+    default:
+        __builtin_unreachable();
+    }
+
+    return {};
+}