dolphin/Source/Core/DolphinQt/TAS/IRWidget.cpp

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// Copyright 2018 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
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#include "DolphinQt/TAS/IRWidget.h"
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#include <algorithm>
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#include <cmath>
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#include <QMouseEvent>
#include <QPainter>
#include "Common/CommonTypes.h"
constexpr int PADDING = 1;
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IRWidget::IRWidget(QWidget* parent) : QWidget(parent)
{
setMouseTracking(false);
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setToolTip(tr("Left click to set the IR value.\n"
"Right click to re-center it."));
// If the widget gets too small, it will get deformed.
setMinimumSize(QSize(64, 48));
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}
void IRWidget::SetX(u16 x)
{
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m_x = std::min(ir_max_x, x);
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update();
}
void IRWidget::SetY(u16 y)
{
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m_y = std::min(ir_max_y, y);
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update();
}
void IRWidget::paintEvent(QPaintEvent* event)
{
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing, true);
painter.setRenderHint(QPainter::SmoothPixmapTransform, true);
const int w = width() - PADDING * 2;
const int h = height() - PADDING * 2;
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painter.setBrush(Qt::white);
painter.drawRect(PADDING, PADDING, w, h);
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painter.drawLine(PADDING, PADDING + h / 2, PADDING + w, PADDING + h / 2);
painter.drawLine(PADDING + w / 2, PADDING, PADDING + w / 2, PADDING + h);
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// convert from value space to widget space
u16 x = PADDING + (w - (m_x * w) / ir_max_x);
u16 y = PADDING + ((m_y * h) / ir_max_y);
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painter.drawLine(PADDING + w / 2, PADDING + h / 2, x, y);
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painter.setBrush(Qt::blue);
int wh_avg = (w + h) / 2;
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int radius = wh_avg / 30;
painter.drawEllipse(x - radius, y - radius, radius * 2, radius * 2);
}
void IRWidget::mousePressEvent(QMouseEvent* event)
{
handleMouseEvent(event);
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m_ignore_movement = event->button() == Qt::RightButton;
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}
void IRWidget::mouseMoveEvent(QMouseEvent* event)
{
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if (!m_ignore_movement)
handleMouseEvent(event);
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}
void IRWidget::handleMouseEvent(QMouseEvent* event)
{
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if (event->button() == Qt::RightButton)
{
m_x = std::round(ir_max_x / 2.);
m_y = std::round(ir_max_y / 2.);
}
else
{
// convert from widget space to value space
int new_x = ir_max_x - (event->x() * ir_max_x) / width();
int new_y = (event->y() * ir_max_y) / height();
m_x = std::max(0, std::min(static_cast<int>(ir_max_x), new_x));
m_y = std::max(0, std::min(static_cast<int>(ir_max_y), new_y));
}
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emit ChangedX(m_x);
emit ChangedY(m_y);
update();
}