DockWidgetQuick.cpp

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/*
  This file is part of KDDockWidgets.
 
  SPDX-FileCopyrightText: 2019-2022 Klarälvdalens Datakonsult AB, a KDAB Group company <info@kdab.com>
  Author: Sérgio Martins <sergio.martins@kdab.com>
 
  SPDX-License-Identifier: GPL-2.0-only OR GPL-3.0-only
 
  Contact KDAB at <info@kdab.com> for commercial licensing options.
*/
 
#include "DockWidgetQuick.h"
#include "FrameworkWidgetFactory.h"
 
#include "private/TitleBar_p.h"
#include "private/DockWidgetBase_p.h"
#include "private/quick/FrameQuick_p.h"
 
#include <Config.h>
#include <QQuickItem>
#include <QCloseEvent>
 
using namespace KDDockWidgets;
 
class DockWidgetQuick::Private
{
public:
    Private(DockWidgetQuick *dw, QQmlEngine *qmlengine)
        : q(dw)
        , m_visualItem(q->createItem(qmlengine,
                                     Config::self().frameworkWidgetFactory()->dockwidgetFilename().toString()))
        , m_qmlEngine(qmlengine)
    {
        Q_ASSERT(m_visualItem);
        m_visualItem->setParent(q);
        m_visualItem->setParentItem(q);
    }
 
    DockWidgetBase *const q;
    QQuickItem *const m_visualItem;
    QQmlEngine *const m_qmlEngine;
};
 
DockWidgetQuick::DockWidgetQuick(const QString &name, Options options,
                                 LayoutSaverOptions layoutSaverOptions, QQmlEngine *engine)
    : DockWidgetBase(name, options, layoutSaverOptions)
    , d(new Private(this, engine ? engine : Config::self().qmlEngine()))
{
    // To mimic what QtWidgets does when creating a new QWidget.
    setVisible(false);
}
 
DockWidgetQuick::~DockWidgetQuick()
{
    delete d;
}
 
void DockWidgetQuick::setWidget(const QString &qmlFilename)
{
    QQuickItem *guest = createItem(d->m_qmlEngine, qmlFilename);
    if (!guest)
        return;
 
    setWidget(guest);
}
 
void DockWidgetQuick::setWidget(QWidgetAdapter *widget)
{
    widget->QWidgetAdapter::setParent(this);
    QWidgetAdapter::makeItemFillParent(widget);
    DockWidgetBase::setWidget(widget);
}
 
void DockWidgetQuick::setWidget(QQuickItem *guest)
{
    auto adapter = new QWidgetAdapter(this);
    adapter->setIsWrapper();
 
    // In case the user app needs to use them:
    adapter->setProperty("originalParent", QVariant::fromValue(guest->parent()));
    adapter->setProperty("originalParentItem", QVariant::fromValue(guest->parentItem()));
 
    guest->setParentItem(adapter);
    guest->setParent(adapter);
    QWidgetAdapter::makeItemFillParent(guest);
 
    setWidget(adapter);
}
 
bool DockWidgetQuick::event(QEvent *e)
{
    if (e->type() == QEvent::ParentChange) {
        onParentChanged();
        Q_EMIT actualTitleBarChanged();
    } else if (e->type() == QEvent::Show) {
        onShown(e->spontaneous());
    } else if (e->type() == QEvent::Hide) {
        onHidden(e->spontaneous());
    } else if (e->type() == QEvent::Close) {
        onCloseEvent(static_cast<QCloseEvent *>(e));
    }
 
    return DockWidgetBase::event(e);
}
 
QSize DockWidgetQuick::minimumSize() const
{
    if (QWidgetAdapter *guestWidget = widget()) {
        // The guests min-size is the same as the widget's, there's no spacing or margins.
        return guestWidget->minimumSize();
    }
 
    return DockWidgetBase::minimumSize();
}
 
QSize DockWidgetQuick::maximumSize() const
{
    if (QWidgetAdapter *guestWidget = widget()) {
        // The guests max-size is the same as the widget's, there's no spacing or margins.
        return guestWidget->maximumSize();
    }
 
    return DockWidgetBase::maximumSize();
}
 
TitleBar *DockWidgetQuick::actualTitleBar() const
{
    if (Frame *frame = DockWidgetBase::d->frame())
        return frame->actualTitleBar();
    return nullptr;
}
 
QObject *DockWidgetQuick::actualTitleBarObj() const
{
    return actualTitleBar();
}
 
QQuickItem *DockWidgetQuick::frameVisualItem() const
{
    if (auto frame = qobject_cast<FrameQuick *>(DockWidgetBase::d->frame()))
        return frame->visualItem();
 
    return nullptr;
}
 
void DockWidgetQuick::onGeometryUpdated()
{
    if (auto frame = qobject_cast<FrameQuick *>(DockWidgetBase::d->frame())) {
        frame->updateConstriants();
        frame->updateGeometry();
    }
}
 
Frame *DockWidgetQuick::frame() const
{
    return qobject_cast<FrameQuick *>(DockWidgetBase::d->frame());
}