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#include "programcounter.h"
using namespace coreview;
//////////////////////
#define WIDTH 80
#define HEIGHT 100
#define PENW 1
//////////////////////
ProgramCounter::ProgramCounter(QtMipsMachine *machine) : QGraphicsObject(nullptr), value(this), name(this) {
value.setText(QString("0x") + QString::number(machine->registers()->read_pc(), 16));
value.setPos(0, HEIGHT/2 - value.boundingRect().height()/2);
name.setText(QString("PC"));
name.setPos(WIDTH/2 - name.boundingRect().width()/2, 0);
connect(machine->registers(), SIGNAL(pc_update(std::uint32_t)), this, SLOT(pc_update(std::uint32_t)));
con_in = new Connector();
con_out = new Connector();
setPos(x(), y()); // To set initial connectors positions
}
QRectF ProgramCounter::boundingRect() const {
return QRectF(-PENW / 2, -PENW / 2, WIDTH + PENW, HEIGHT + PENW);
}
void ProgramCounter::paint(QPainter *painter, const QStyleOptionGraphicsItem *option, QWidget *widget) {
painter->drawRect(0, 0, WIDTH, HEIGHT);
}
void ProgramCounter::setPos(qreal x, qreal y) {
QGraphicsObject::setPos(x, y);
con_in->setPos(x, y + HEIGHT/2);
con_out->setPos(x + WIDTH, y + HEIGHT/2);
}
const Connector *ProgramCounter::connector_in() const {
return con_in;
}
const Connector *ProgramCounter::connector_out() const {
return con_out;
}
void ProgramCounter::pc_update(std::uint32_t val) {
value.setText(QString("0x") + QString::number(val, 16));
}
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