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// SPDX-License-Identifier: GPL-2.0+
/*******************************************************************************
* QtMips - MIPS 32-bit Architecture Subset Simulator
*
* Implemented to support following courses:
*
* B35APO - Computer Architectures
* https://cw.fel.cvut.cz/wiki/courses/b35apo
*
* B4M35PAP - Advanced Computer Architectures
* https://cw.fel.cvut.cz/wiki/courses/b4m35pap/start
*
* Copyright (c) 2017-2019 Karel Koci<cynerd@email.cz>
* Copyright (c) 2019 Pavel Pisa <pisa@cmp.felk.cvut.cz>
*
* Faculty of Electrical Engineering (http://www.fel.cvut.cz)
* Czech Technical University (http://www.cvut.cz/)
*
* This program is free software; you can redistribute it and/or
* modify it under the terms of the GNU General Public License
* as published by the Free Software Foundation; either version 2
* of the License, or (at your option) any later version.
*
* This program is distributed in the hope that it will be useful,
* but WITHOUT ANY WARRANTY; without even the implied warranty of
* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
* GNU General Public License for more details.
*
* You should have received a copy of the GNU General Public License
* along with this program; if not, write to the Free Software
* Foundation, Inc., 51 Franklin Street, Fifth Floor,
* Boston, MA 02110-1301, USA.
*
******************************************************************************/
#include "instructionview.h"
#include "fontsize.h"
#include <QPainter>
#include <QFont>
using namespace coreview;
//////////////////////
#define WIDTH 120
#define HEIGHT 14
#define ROUND 5
#define GAP 2
#define PENW 1
//////////////////////
InstructionView::InstructionView() : QGraphicsObject(nullptr), text(this) {
QFont f;
f.setPointSize(FontSize::SIZE6);
text.setFont(f);
// Initialize to NOP
instruction_update(machine::Instruction(), 0, machine::EXCAUSE_NONE);
}
QRectF InstructionView::boundingRect() const {
return QRectF(-WIDTH/2 - PENW/2, -PENW/2, WIDTH + PENW, HEIGHT + PENW);
}
void InstructionView::paint(QPainter *painter, const QStyleOptionGraphicsItem *option __attribute__((unused)), QWidget *widget __attribute__((unused))) {
painter->setPen(QPen(QColor(240, 240, 240)));
if (excause == machine::EXCAUSE_NONE)
painter->setBrush(QBrush(QColor(240, 240, 240)));
else
painter->setBrush(QBrush(QColor(255, 100, 100)));
painter->drawRoundRect(-WIDTH/2, 0, WIDTH, HEIGHT, ROUND, ROUND);
}
void InstructionView::instruction_update(const machine::Instruction &i,
std::uint32_t inst_addr, machine::ExceptionCause excause) {
QRectF prev_box = boundingRect();
text.setText(i.to_str(inst_addr));
this->excause = excause;
QRectF box = text.boundingRect();
text.setPos(-box.width()/2, GAP);
update(prev_box.united(boundingRect()));
}
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