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// Copyright (C) 2021 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0+ OR GPL-3.0 WITH Qt-GPL-exception-1.0
#include "seekerslider.h"
#include <utils/icon.h>
#include <QStyleOption>
#include <QSlider>
#include <QDebug>
#include <QPainter>
namespace QmlDesigner {
SeekerSlider::SeekerSlider(QWidget *parentWidget)
: QWidget(parentWidget),
m_bgIcon(QLatin1String(":/icon/layout/scrubbg.png"))
{
m_handleIcon.addFile(QLatin1String(":/icon/layout/scrubhandle-24.png"), QSize(24, 24));
m_handleIcon.addFile(QLatin1String(":/icon/layout/scrubhandle-48.png"), QSize(48, 48));
m_handleIcon.addFile(QLatin1String(":/icon/layout/scrubhandle-disabled-24.png"), QSize(24, 24), QIcon::Disabled);
m_handleIcon.addFile(QLatin1String(":/icon/layout/scrubhandle-disabled-48.png"), QSize(48, 48), QIcon::Disabled);
const Utils::Icon bg({{":/icon/layout/scrubbg.png", Utils::Theme::IconsBaseColor}});
m_bgWidth = bg.pixmap().width();
m_bgHeight = bg.pixmap().height();
m_handleWidth = m_bgHeight;
m_handleHeight = m_bgHeight;
int width = m_bgWidth + m_handleWidth * 2;
m_sliderHalfWidth = m_bgWidth / 2;
setMinimumWidth(width);
setMaximumWidth(width);
setProperty("panelwidget", true);
setProperty("panelwidget_singlerow", true);
}
void SeekerSlider::paintEvent([[maybe_unused]] QPaintEvent *event)
{
QPainter painter(this);
{
QStyleOptionToolBar option;
option.rect = rect();
option.state = QStyle::State_Horizontal;
style()->drawControl(QStyle::CE_ToolBar, &option, &painter, this);
}
int x = rect().width() / 2;
int y = rect().height() / 2;
const QPixmap bg = m_bgIcon.pixmap(QSize(m_bgWidth, m_bgHeight), isEnabled() ? QIcon::Normal : QIcon::Disabled, QIcon::On);
painter.drawPixmap(x - m_bgWidth / 2, y - m_bgHeight / 2, bg);
if (m_moving) {
const QPixmap handle = m_handleIcon.pixmap(QSize(m_handleWidth, m_handleHeight), QIcon::Active, QIcon::On);
painter.drawPixmap(x - m_handleWidth / 2 + m_sliderPos, y - m_handleHeight / 2, handle);
} else {
const QPixmap handle = m_handleIcon.pixmap(QSize(m_handleWidth, m_handleHeight), isEnabled() ? QIcon::Normal : QIcon::Disabled, QIcon::On);
painter.drawPixmap(x - m_handleWidth / 2, y - m_handleHeight / 2, handle);
}
}
void SeekerSlider::mousePressEvent(QMouseEvent *event)
{
if (event->button() != Qt::LeftButton) {
QWidget::mousePressEvent(event);
return;
}
int x = rect().width() / 2;
int y = rect().height() / 2;
auto pos = event->localPos();
if (pos.x() >= x - m_handleWidth / 2 && pos.x() <= x + m_handleWidth / 2
&& pos.y() >= y - m_handleHeight / 2 && pos.y() <= y + m_handleHeight / 2) {
m_moving = true;
m_startPos = pos.x();
}
}
void SeekerSlider::mouseMoveEvent(QMouseEvent *event)
{
if (!m_moving) {
QWidget::mouseMoveEvent(event);
return;
}
auto pos = event->localPos();
int delta = pos.x() - m_startPos;
m_sliderPos = qBound(-m_sliderHalfWidth, delta, m_sliderHalfWidth);
delta = m_maxPosition * m_sliderPos / m_sliderHalfWidth;
if (delta != m_position) {
m_position = delta;
Q_EMIT positionChanged();
update();
}
}
void SeekerSlider::mouseReleaseEvent(QMouseEvent *event)
{
if (!m_moving) {
QWidget::mouseReleaseEvent(event);
return;
}
m_moving = false;
m_position = 0;
m_startPos = 0;
m_sliderPos = 0;
Q_EMIT positionChanged();
update();
}
int SeekerSlider::position() const
{
return m_position;
}
} // namespace QmlDesigner
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