3 files changed, 81 insertions, 1 deletions
diff --git a/qtmips_gui/coreview/registers.cpp b/qtmips_gui/coreview/registers.cpp
index ba46f53..e4515c0 100644
--- a/qtmips_gui/coreview/registers.cpp
+++ b/qtmips_gui/coreview/registers.cpp
@@ -46,7 +46,6 @@ QRectF Registers::boundingRect() const {
 
 void Registers::paint(QPainter *painter, const QStyleOptionGraphicsItem *option __attribute((unused)), QWidget *widget __attribute((unused))) {
     painter->drawRect(0, 0, WIDTH, HEIGHT);
-    // TODO anything else?
 }
 
 void Registers::setPos(qreal x, qreal y) {
diff --git a/qtmips_gui/coreview/value.cpp b/qtmips_gui/coreview/value.cpp
new file mode 100644
index 0000000..557abfe
--- /dev/null
+++ b/qtmips_gui/coreview/value.cpp
@@ -0,0 +1,51 @@
+#include "value.h"
+
+using namespace coreview;
+
+#define HEIGHT 8
+#define LETWIDTH 7
+
+// TODO orientation
+Value::Value(bool vertical, unsigned width, std::uint32_t init_val) : QGraphicsObject(nullptr) {
+    wid = width;
+    val = init_val;
+    this->vertical = vertical;
+}
+
+QRectF Value::boundingRect() const {
+    if (vertical)
+        return QRectF(-LETWIDTH/2 - 1, -HEIGHT*(int)wid/2 - 1, LETWIDTH + 2, HEIGHT*wid + 2);
+    else
+        return QRectF(-(LETWIDTH*(int)wid)/2 - 1, -HEIGHT/2 - 1, LETWIDTH*wid + 2, HEIGHT + 2);
+}
+
+void Value::paint(QPainter *painter, const QStyleOptionGraphicsItem *option __attribute__((unused)), QWidget *widget __attribute__((unused))){
+    QFont f;
+    f.setPointSize(7);
+    painter->setFont(f);
+
+    QRectF rect;
+    if (vertical)
+        rect = QRectF(-LETWIDTH/2 - 0.5, -(HEIGHT*(int)wid)/2 - 0.5, LETWIDTH + 1, HEIGHT*wid + 1);
+    else
+        rect = QRectF(-(LETWIDTH*(int)wid)/2 - 0.5, -HEIGHT/2 - 0.5, LETWIDTH*wid + 1, HEIGHT + 1);
+    painter->setBrush(QBrush(QColor(Qt::white)));
+    painter->setBackgroundMode(Qt::OpaqueMode);
+    painter->drawRect(rect);
+    painter->setBackgroundMode(Qt::TransparentMode);
+    QString str = QString("%1").arg(val, wid, 16, QChar('0'));
+    if (vertical) {
+        rect.setHeight(HEIGHT + 1);
+        for (unsigned i = 0; i < wid; i++) {
+            painter->drawText(rect, Qt::AlignCenter, QString(str[i]));
+            // TODO this is probably broken (it is offseted)
+            rect.setY(rect.y() + HEIGHT + 8);
+        }
+    } else
+        painter->drawText(rect, Qt::AlignCenter, str);
+}
+
+void Value::value_update(std::uint32_t val)  {
+    this->val = val;
+    update();
+}
diff --git a/qtmips_gui/coreview/value.h b/qtmips_gui/coreview/value.h
new file mode 100644
index 0000000..c454024
--- /dev/null
+++ b/qtmips_gui/coreview/value.h
@@ -0,0 +1,30 @@
+#ifndef VALUE_H
+#define VALUE_H
+
+#include <QGraphicsObject>
+#include <QPainter>
+
+namespace coreview {
+
+class Value : public QGraphicsObject {
+    Q_OBJECT
+public:
+    Value(bool vertical = false, unsigned width = 8, unsigned init_val = 0); // width is for number of character to be shown from number
+
+    QRectF boundingRect() const;
+    void paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget);
+
+public slots:
+    void value_update(std::uint32_t);
+
+protected:
+    std::uint32_t val;
+
+private:
+    unsigned wid;
+    bool vertical;
+};
+
+}
+
+#endif // VALUE_H