forked from dolphin-emu/dolphin
93 lines
2.1 KiB
C++
93 lines
2.1 KiB
C++
// Copyright 2018 Dolphin Emulator Project
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// Licensed under GPLv2+
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// Refer to the license.txt file included.
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#include "DolphinQt/TAS/StickWidget.h"
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#include <algorithm>
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#include <cmath>
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#include <QMouseEvent>
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#include <QPainter>
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#include "Common/CommonTypes.h"
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StickWidget::StickWidget(QWidget* parent, u16 max_x, u16 max_y)
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: QWidget(parent), m_max_x(max_x), m_max_y(max_y)
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{
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setMouseTracking(false);
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setToolTip(tr("Left click to set the stick value.\n"
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"Right click to re-center it."));
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}
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void StickWidget::SetX(u16 x)
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{
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m_x = std::min(m_max_x, x);
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update();
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}
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void StickWidget::SetY(u16 y)
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{
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m_y = std::min(m_max_y, y);
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update();
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}
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void StickWidget::paintEvent(QPaintEvent* event)
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{
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QPainter painter(this);
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painter.setRenderHint(QPainter::Antialiasing, true);
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painter.setRenderHint(QPainter::SmoothPixmapTransform, true);
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painter.setBrush(Qt::white);
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painter.drawEllipse(0, 0, width() - 1, height() - 1);
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painter.drawLine(0, height() / 2, width(), height() / 2);
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painter.drawLine(width() / 2, 0, width() / 2, height());
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// convert from value space to widget space
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u16 x = (m_x * width()) / m_max_x;
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u16 y = height() - (m_y * height()) / m_max_y;
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painter.drawLine(width() / 2, height() / 2, x, y);
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painter.setBrush(Qt::blue);
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int wh_avg = (width() + height()) / 2;
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int radius = wh_avg / 30;
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painter.drawEllipse(x - radius, y - radius, radius * 2, radius * 2);
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}
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void StickWidget::mousePressEvent(QMouseEvent* event)
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{
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handleMouseEvent(event);
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}
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void StickWidget::mouseMoveEvent(QMouseEvent* event)
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{
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handleMouseEvent(event);
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}
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void StickWidget::handleMouseEvent(QMouseEvent* event)
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{
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if (event->button() == Qt::RightButton)
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{
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m_x = std::round(m_max_x / 2.);
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m_y = std::round(m_max_y / 2.);
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}
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else
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{
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// convert from widget space to value space
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int new_x = (event->x() * m_max_x) / width();
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int new_y = m_max_y - (event->y() * m_max_y) / height();
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m_x = std::max(0, std::min(static_cast<int>(m_max_x), new_x));
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m_y = std::max(0, std::min(static_cast<int>(m_max_y), new_y));
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}
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emit ChangedX(m_x);
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emit ChangedY(m_y);
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update();
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}
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