1 files changed, 95 insertions, 0 deletions
diff --git a/qtmips_gui/coreview/registers.cpp b/qtmips_gui/coreview/registers.cpp
new file mode 100644
index 0000000..12684e8
--- /dev/null
+++ b/qtmips_gui/coreview/registers.cpp
@@ -0,0 +1,95 @@
+#include "registers.h"
+#include <cmath>
+
+using namespace coreview;
+
+//////////////////////
+#define WIDTH 680
+#define HEIGHT 30
+#define PENW 1
+//////////////////////
+
+Registers::Registers() : QGraphicsObject(nullptr) {
+    con_read1 = new Connector(-M_PI_2);
+    con_read1_reg = new Connector(-M_PI_2);
+    con_read2 = new Connector(-M_PI_2);
+    con_read2_reg = new Connector(-M_PI_2);
+    con_write = new Connector(-M_PI_2);
+    con_write_reg = new Connector(-M_PI_2);
+    con_ctl_write = new Connector(-M_PI_2);
+
+    // TODO do we want to have any hooks on real registers?
+
+    // TODO add labels for connections
+
+    name = new QGraphicsSimpleTextItem("Registers", this);
+    QRectF name_box = name->boundingRect();
+    name->setPos(WIDTH/2 - name_box.width()/2, HEIGHT/2 - name_box.height()/2);
+
+    setPos(x(), y()); // set connector's position
+}
+
+Registers::~Registers() {
+    delete con_read1;
+    delete con_read1_reg;
+    delete con_read2;
+    delete con_read2_reg;
+    delete con_write;
+    delete con_write_reg;
+    delete con_ctl_write;
+}
+
+QRectF Registers::boundingRect() const {
+    return QRectF(-PENW / 2, -PENW / 2, WIDTH + PENW, HEIGHT + PENW);
+}
+
+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) {
+    QGraphicsObject::setPos(x, y);
+
+    con_read1_reg->setPos(x + 30, y + HEIGHT);
+    con_read2_reg->setPos(x + 40, y + HEIGHT);
+    con_read1->setPos(x + 60, y + HEIGHT);
+    con_read2->setPos(x + 70, y + HEIGHT);
+
+    con_write_reg->setPos(x + WIDTH - 40, y + HEIGHT);
+    con_write->setPos(x + WIDTH - 30, y + HEIGHT);
+    con_ctl_write->setPos(x + WIDTH - 20, y + HEIGHT);
+}
+
+const Connector *Registers::connector_read1() const {
+    return con_read1;
+}
+
+const Connector *Registers::connector_read1_reg() const {
+    return con_read1_reg;
+}
+
+const Connector *Registers::connector_read2() const {
+    return con_read2;
+}
+
+const Connector *Registers::connector_read2_reg() const {
+    return con_read2_reg;
+}
+
+const Connector *Registers::connector_write() const {
+    return con_write;
+}
+
+const Connector *Registers::connector_write_reg() const {
+    return con_write_reg;
+}
+
+const Connector *Registers::connector_ctl_write() const {
+    return con_ctl_write;
+}
+
+void Registers::mouseDoubleClickEvent(QGraphicsSceneMouseEvent *event) {
+    QGraphicsObject::mouseDoubleClickEvent(event);
+    emit open_registers();
+}