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// Copyright (C) 2016 The Qt Company Ltd.
// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR GPL-3.0-only WITH Qt-GPL-exception-1.0
#include "progressview.h"
#include "../coreplugintr.h"
#include <QApplication>
#include <QEvent>
#include <QMouseEvent>
#include <QVBoxLayout>
namespace Core::Internal {
ProgressView::ProgressView(QWidget *parent)
: QWidget(parent)
{
m_layout = new QVBoxLayout;
setLayout(m_layout);
m_layout->setContentsMargins(0, 0, 0, 1);
m_layout->setSpacing(0);
m_layout->setSizeConstraint(QLayout::SetFixedSize);
setWindowTitle(Tr::tr("Processes"));
}
ProgressView::~ProgressView() = default;
void ProgressView::addProgressWidget(QWidget *widget)
{
if (m_layout->count() == 0)
m_anchorBottomRight = {}; // reset temporarily user-moved progress details
m_layout->insertWidget(0, widget);
}
void ProgressView::removeProgressWidget(QWidget *widget)
{
m_layout->removeWidget(widget);
}
bool ProgressView::isHovered() const
{
return m_hovered;
}
void ProgressView::setReferenceWidget(QWidget *widget)
{
if (m_referenceWidget)
removeEventFilter(this);
m_referenceWidget = widget;
if (m_referenceWidget)
installEventFilter(this);
m_anchorBottomRight = {};
reposition();
}
bool ProgressView::event(QEvent *event)
{
if (event->type() == QEvent::ParentAboutToChange && parentWidget()) {
parentWidget()->removeEventFilter(this);
} else if (event->type() == QEvent::ParentChange && parentWidget()) {
parentWidget()->installEventFilter(this);
} else if (event->type() == QEvent::Resize) {
reposition();
} else if (event->type() == QEvent::Enter) {
m_hovered = true;
emit hoveredChanged(m_hovered);
} else if (event->type() == QEvent::Leave) {
m_hovered = false;
emit hoveredChanged(m_hovered);
} else if (event->type() == QEvent::Show) {
m_anchorBottomRight = {}; // reset temporarily user-moved progress details
reposition();
}
return QWidget::event(event);
}
bool ProgressView::eventFilter(QObject *obj, QEvent *event)
{
if ((obj == parentWidget() || obj == m_referenceWidget) && event->type() == QEvent::Resize)
reposition();
return false;
}
void ProgressView::mousePressEvent(QMouseEvent *ev)
{
if ((ev->buttons() & Qt::LeftButton) && parentWidget() && m_referenceWidget) {
m_clickPosition = ev->globalPosition();
m_clickPositionInWidget = ev->position();
} else {
m_clickPosition.reset();
}
QWidget::mousePressEvent(ev);
}
static QPoint boundedInParent(QWidget *widget, const QPoint &pos, QWidget *parent)
{
QPoint bounded = pos;
bounded.setX(qBound(widget->rect().width(), bounded.x(), parent->width()));
bounded.setY(qBound(widget->rect().height(), bounded.y(), parent->height()));
return bounded;
}
void ProgressView::mouseMoveEvent(QMouseEvent *ev)
{
if (m_clickPosition) {
const QPointF current = ev->globalPosition();
if (m_isDragging
|| (current - *m_clickPosition).manhattanLength() > QApplication::startDragDistance()) {
m_isDragging = true;
const QPointF newGlobal = current - m_clickPositionInWidget;
const QPoint bottomRightInParent = parentWidget()->mapFromGlobal(newGlobal).toPoint()
+ rect().bottomRight();
m_anchorBottomRight = boundedInParent(this, bottomRightInParent, parentWidget())
- topRightReferenceInParent();
if (m_anchorBottomRight.manhattanLength() <= QApplication::startDragDistance())
m_anchorBottomRight = {};
QMetaObject::invokeMethod(this, [this] { reposition(); });
}
}
QWidget::mouseMoveEvent(ev);
}
void ProgressView::mouseReleaseEvent(QMouseEvent *ev)
{
if ((ev->buttons() & Qt::LeftButton)) {
m_clickPosition.reset();
m_isDragging = false;
}
QWidget::mouseReleaseEvent(ev);
}
void ProgressView::reposition()
{
if (!parentWidget() || !m_referenceWidget)
return;
move(boundedInParent(this, topRightReferenceInParent() + m_anchorBottomRight, parentWidget())
- rect().bottomRight());
}
QPoint ProgressView::topRightReferenceInParent() const
{
if (!parentWidget() || !m_referenceWidget)
return {};
return m_referenceWidget->mapTo(parentWidget(), m_referenceWidget->rect().topRight());
}
} // Core::Internal
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