Cabana: show MSB/LSB of signals in the BinaryView (#26103)

* dispaly msb and lsb in binary view

* draw at bottom

* move binaryview to seperate files

* increase the width of vertical header

* re-draw changed cells only

* correct lsb/msb position

* check bounds

* todo
old-commit-hash: 99b16151fc

tools/cabana/binaryview.h

@@ -0,0 +1,72 @@
+#pragma once
+
+#include <QStyledItemDelegate>
+#include <QTableView>
+
+#include "tools/cabana/dbcmanager.h"
+
+class BinaryItemDelegate : public QStyledItemDelegate {
+  Q_OBJECT
+
+public:
+  BinaryItemDelegate(QObject *parent);
+  void paint(QPainter *painter, const QStyleOptionViewItem &option, const QModelIndex &index) const override;
+  QSize sizeHint(const QStyleOptionViewItem &option, const QModelIndex &index) const override;
+
+private:
+  QFont small_font, bold_font;
+  QColor highlight_color;
+};
+
+class BinaryViewModel : public QAbstractTableModel {
+  Q_OBJECT
+
+public:
+  BinaryViewModel(QObject *parent) : QAbstractTableModel(parent) {}
+  void setMessage(const QString &message_id);
+  void updateState();
+  Qt::ItemFlags flags(const QModelIndex &index) const;
+  QVariant headerData(int section, Qt::Orientation orientation, int role = Qt::DisplayRole) const override;
+  QModelIndex index(int row, int column, const QModelIndex &parent = QModelIndex()) const;
+  QVariant data(const QModelIndex &index, int role = Qt::DisplayRole) const { return {}; }
+  int rowCount(const QModelIndex &parent = QModelIndex()) const override { return row_count; }
+  int columnCount(const QModelIndex &parent = QModelIndex()) const override { return column_count; }
+
+  struct Item {
+    QColor bg_color = QColor(Qt::white);
+    bool is_msb = false;
+    bool is_lsb = false;
+    QString val = "0";
+  };
+
+private:
+  QString msg_id;
+  const Msg *dbc_msg;
+  int row_count = 0;
+  const int column_count = 9;
+  std::vector<Item> items;
+};
+
+// the default QItemSelectionModel does not support our selection mode.
+class BinarySelectionModel : public QItemSelectionModel {
+ public:
+  BinarySelectionModel(QAbstractItemModel *model = nullptr) : QItemSelectionModel(model) {}
+  void select(const QItemSelection &selection, QItemSelectionModel::SelectionFlags command) override;
+};
+
+class BinaryView : public QTableView {
+  Q_OBJECT
+
+public:
+  BinaryView(QWidget *parent = nullptr);
+  void mouseReleaseEvent(QMouseEvent *event) override;
+  void setMessage(const QString &message_id);
+  void updateState();
+
+signals:
+  void cellsSelected(int start_bit, int size);
+
+private:
+  QString msg_id;
+  BinaryViewModel *model;
+};