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// Copyright 2018 Dolphin Emulator Project
// SPDX-License-Identifier: GPL-2.0-or-later
#include "DolphinQt/TAS/StickWidget.h"
#include <algorithm>
#include <cmath>
#include <QMouseEvent>
#include <QPainter>
#include "Common/CommonTypes.h"
constexpr int PADDING = 1;
StickWidget::StickWidget(QWidget* parent, u16 max_x, u16 max_y)
: QWidget(parent), m_max_x(max_x), m_max_y(max_y)
{
setMouseTracking(false);
setToolTip(tr("Left click to set the stick value.\n"
"Right click to re-center it."));
// If the widget gets too small, it will get deformed.
setMinimumSize(QSize(64, 64));
}
QSize StickWidget::sizeHint() const
{
return QSize(128, 128);
}
void StickWidget::SetX(u16 x)
{
m_x = std::min(m_max_x, x);
update();
}
void StickWidget::SetY(u16 y)
{
m_y = std::min(m_max_y, y);
update();
}
void StickWidget::paintEvent(QPaintEvent* event)
{
QPainter painter(this);
painter.setRenderHint(QPainter::Antialiasing, true);
painter.setRenderHint(QPainter::SmoothPixmapTransform, true);
const int diameter = std::min(width(), height()) - PADDING * 2;
// inscribe the StickWidget inside a square
painter.fillRect(PADDING, PADDING, diameter, diameter, Qt::lightGray);
painter.setBrush(Qt::white);
painter.drawEllipse(PADDING, PADDING, diameter, diameter);
painter.drawLine(PADDING, PADDING + diameter / 2, PADDING + diameter, PADDING + diameter / 2);
painter.drawLine(PADDING + diameter / 2, PADDING, PADDING + diameter / 2, PADDING + diameter);
// convert from value space to widget space
u16 x = PADDING + ((m_x * diameter) / m_max_x);
u16 y = PADDING + (diameter - (m_y * diameter) / m_max_y);
painter.drawLine(PADDING + diameter / 2, PADDING + diameter / 2, x, y);
painter.setBrush(Qt::blue);
int neutral_radius = diameter / 30;
painter.drawEllipse(x - neutral_radius, y - neutral_radius, neutral_radius * 2,
neutral_radius * 2);
}
void StickWidget::mousePressEvent(QMouseEvent* event)
{
handleMouseEvent(event);
m_ignore_movement = event->button() == Qt::RightButton;
}
void StickWidget::mouseMoveEvent(QMouseEvent* event)
{
if (!m_ignore_movement)
handleMouseEvent(event);
}
void StickWidget::handleMouseEvent(QMouseEvent* event)
{
u16 prev_x = m_x;
u16 prev_y = m_y;
if (event->button() == Qt::RightButton)
{
m_x = std::round(m_max_x / 2.);
m_y = std::round(m_max_y / 2.);
}
else
{
// convert from widget space to value space
int new_x = (event->pos().x() * m_max_x) / width();
int new_y = m_max_y - (event->pos().y() * m_max_y) / height();
m_x = std::max(0, std::min(static_cast<int>(m_max_x), new_x));
m_y = std::max(0, std::min(static_cast<int>(m_max_y), new_y));
}
bool changed = false;
if (prev_x != m_x)
{
emit ChangedX(m_x);
changed = true;
}
if (prev_y != m_y)
{
emit ChangedY(m_y);
changed = true;
}
if (changed)
update();
}
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