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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 <QString>
#include <QTextBlock>
#include <QTextCursor>
#include "lcddisplaydock.h"
#include "lcddisplayview.h"
LcdDisplayDock::LcdDisplayDock(QWidget *parent, QSettings *settings) : Super(parent) {
(void)settings;
lcd_display_widget = new LcdDisplayView(this);
QWidget *fill_widget = new QWidget(this);
layout = new QBoxLayout(QBoxLayout::LeftToRight, fill_widget);
// add spacer, then your widget, then spacer
layout->addItem(new QSpacerItem(0, 0));
layout->addWidget(lcd_display_widget);
layout->addItem(new QSpacerItem(0, 0));
fill_widget->setLayout(layout);
setWidget(fill_widget);
setObjectName("LCD Display");
setWindowTitle("LCD Display");
}
LcdDisplayDock::~LcdDisplayDock() {
delete lcd_display_widget;
}
void LcdDisplayDock::setup(machine::LcdDisplay *lcd_display) {
lcd_display_widget->setup(lcd_display);
update_layout(width(), height());
}
void LcdDisplayDock::update_layout(int w, int h) {
// Keeping aspect ratio based on
// https://stackoverflow.com/questions/30005540/keeping-the-aspect-ratio-of-a-sub-classed-qwidget-during-resize
float thisAspectRatio = (float)w / h;
int widgetStretch, outerStretch;
float arWidth = lcd_display_widget->fb_width(); // aspect ratio width
float arHeight = lcd_display_widget->fb_height(); // aspect ratio height
if ((arWidth == 0) || (arHeight == 0)) {
outerStretch = 0;
widgetStretch = 1;
} else if (thisAspectRatio > (arWidth/arHeight)) { // too wide
layout->setDirection(QBoxLayout::LeftToRight);
widgetStretch = height() * (arWidth/arHeight); // i.e., my width
outerStretch = (width() - widgetStretch) / 2 + 0.5;
} else { // too tall
layout->setDirection(QBoxLayout::TopToBottom);
widgetStretch = width() * (arHeight/arWidth); // i.e., my height
outerStretch = (height() - widgetStretch) / 2 + 0.5;
}
layout->setStretch(0, outerStretch);
layout->setStretch(1, widgetStretch);
layout->setStretch(2, outerStretch);
}
void LcdDisplayDock::resizeEvent(QResizeEvent *event) {
// Keeping aspect ratio based on
// https://stackoverflow.com/questions/30005540/keeping-the-aspect-ratio-of-a-sub-classed-qwidget-during-resize
update_layout(event->size().width(), event->size().height());
Super::resizeEvent(event);
}
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