From 25f07764423af70cf3f4daa2590969f8595613f6 Mon Sep 17 00:00:00 2001
From: Peter M. Groen <pgroen@nuc64.osdev.nl>
Date: Sat, 17 Sep 2022 03:04:26 +0200
Subject: [PATCH] Implementing the memorymodel

---
 src/CMakeLists.txt              |  2 ++
 src/memorymodel/memorymodel.cpp | 72 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++++
 src/memorymodel/memorymodel.h   | 27 +++++++++++++++++++++++++++
 3 files changed, 101 insertions(+), 0 deletions(-)
 create mode 100644 src/memorymodel/memorymodel.cpp
 create mode 100644 src/memorymodel/memorymodel.h

diff --git a/src/CMakeLists.txt b/src/CMakeLists.txt
index 0656d7a..682ece8 100644
--- a/src/CMakeLists.txt
+++ b/src/CMakeLists.txt
@@ -14,11 +14,13 @@ include(compiler)
 set( SRC_LIST
     ${CMAKE_CURRENT_SOURCE_DIR}/tablemodel/tablemodel.cpp
     ${CMAKE_CURRENT_SOURCE_DIR}/tablemodel/modeldataitem.cpp
+    ${CMAKE_CURRENT_SOURCE_DIR}/memorymodel/memorymodel.cpp
 )
 
 include(qtmoc)
 create_mocs( SRC_LIST MOC_LIST
     ${CMAKE_CURRENT_SOURCE_DIR}/tablemodel/tablemodel.h
+    ${CMAKE_CURRENT_SOURCE_DIR}/memorymodel/memorymodel.h
 )
 
 link_directories(
diff --git a/src/memorymodel/memorymodel.cpp b/src/memorymodel/memorymodel.cpp
new file mode 100644
index 0000000..9a9e077
--- /dev/null
+++ b/src/memorymodel/memorymodel.cpp
@@ -0,0 +1,72 @@
+#include "memorymodel.h"
+
+MemoryModel::MemoryModel(int segments, int registers_per_segment, QObject *parent)
+    : QAbstractItemModel(parent)
+    , m_memoryData()
+{
+    for(int nCount = 0; nCount < segments; nCount++)
+    {
+        m_memoryData.insert( nCount, QVector<uint16_t>(registers_per_segment, 0x00) );
+    }
+}
+
+int MemoryModel::columnCount(const QModelIndex &parent) const
+{
+    if(rowCount(parent) > 0)
+    {
+        return m_memoryData.value(0).count();
+    }
+    return 0;
+}
+
+QVariant MemoryModel::data(const QModelIndex &index, int role) const
+{
+    int segment = index.row();
+    int reg = index.column();
+
+    switch(role)
+    {
+        case Qt::DisplayRole:
+            return QVariant(m_memoryData.value(segment).at(reg));
+
+        default:
+            return QVariant();
+    }
+}
+
+QVariant MemoryModel::headerData(int section, Qt::Orientation orientation, int role) const
+{
+    // Make sure we stay within the header boundaries...
+    // ColumnNames
+    if(role == Qt::DisplayRole && orientation == Qt::Horizontal && section < m_headers.size())
+    {
+        return m_headers.at(section);
+    }
+    return QVariant();
+}
+
+QModelIndex MemoryModel::index(int row, int column, const QModelIndex &parent) const
+{
+
+}
+
+QModelIndex MemoryModel::parent(const QModelIndex &index) const
+{
+    Q_UNUSED(index)
+    return QModelIndex();
+}
+
+int MemoryModel::rowCount(const QModelIndex &parent) const
+{
+    return m_memoryData.count();
+}
+
+bool MemoryModel::setData(const QModelIndex &index, const QVariant &value, int role)
+{
+
+}
+
+bool MemoryModel::setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role)
+{
+
+}
diff --git a/src/memorymodel/memorymodel.h b/src/memorymodel/memorymodel.h
new file mode 100644
index 0000000..8cff292
--- /dev/null
+++ b/src/memorymodel/memorymodel.h
@@ -0,0 +1,27 @@
+#pragma once
+
+#include <QAbstractItemModel>
+#include <QVector>
+#include <QHash>
+
+class MemoryModel : public QAbstractItemModel
+{
+    Q_OBJECT
+
+public:
+    explicit MemoryModel(int segments = 10, int registers_per_segment = 10, QObject *parent = nullptr);
+    virtual ~MemoryModel() override {}
+
+    virtual int columnCount(const QModelIndex &parent = QModelIndex()) const override;
+    virtual QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const override;
+    virtual QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
+    virtual QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const override;
+    virtual QModelIndex parent(const QModelIndex &index) const override;
+    virtual int rowCount(const QModelIndex &parent = QModelIndex()) const override;
+    virtual bool setData(const QModelIndex &index, const QVariant &value, int role = Qt::EditRole) override;
+    virtual bool setHeaderData(int section, Qt::Orientation orientation, const QVariant &value, int role = Qt::EditRole) override;
+
+private:
+    QHash<int, QVector<uint16_t>>   m_memoryData;
+    QStringList                     m_headers;
+};
--
libgit2 0.21.4