Implemented cell marks.

Closes #4.

Author: Kaffeine

Cell.cpp

@@ -17,6 +17,7 @@ void Cell::reset()
 {
     m_haveMine = false;
     m_open = false;
+    m_mark = 0;
 }
 
 int Cell::minesAround() const
@@ -55,6 +56,15 @@ void Cell::open()
     }
 }
 
+void Cell::toggleMark()
+{
+    if (m_mark == 2) {
+        m_mark = 0;
+    } else {
+        ++m_mark;
+    }
+}
+
 void maybeAddCell(QVector<Cell*> *vector, Cell *cell)
 {
     if (cell) {

Cell.hpp

@@ -23,6 +23,9 @@ class Cell
     bool isOpen() const { return m_open; }
     void open();
 
+    int mark() const { return m_mark; }
+    void toggleMark();
+
     QVector<Cell*> getNeighbors() const;
 
 private:
@@ -34,6 +37,8 @@ class Cell
     bool m_haveMine;
     bool m_open;
 
+    int m_mark;
+
 };
 
 #endif // CELL_HPP

CellItem.cpp

@@ -44,7 +44,18 @@ void CellItem::paint(QPainter *painter, const QStyleOptionGraphicsItem *option,
         }
     } else {
         painter->fillRect(border, border, cellSize - border * 2, cellSize - border * 2, Qt::lightGray);
-        m_text->setText("");
+
+        switch (m_cell->mark()) {
+        case 1:
+            m_text->setText("!");
+            break;
+        case 2:
+            m_text->setText("?");
+            break;
+        default: // case 0
+            m_text->setText("");
+            break;
+        }
     }
     m_text->setPos((cellSize - m_text->boundingRect().width()) / 2, (cellSize - m_text->boundingRect().height()) / 2);
 }
@@ -58,6 +69,8 @@ void CellItem::mouseReleaseEvent(QGraphicsSceneMouseEvent *event)
 {
     if (event->button() == Qt::LeftButton) {
         m_cell->open();
+    } else if (event->button() == Qt::RightButton) {
+        m_cell->toggleMark();
     }
 
     update();