Line data    Source code

       1              : /*
       2              :  * SPDX-License-Identifier: GPL-3.0-only
       3              :  * MuseScore-CLA-applies
       4              :  *
       5              :  * MuseScore Studio
       6              :  * Music Composition & Notation
       7              :  *
       8              :  * Copyright (C) 2021 MuseScore Limited and others
       9              :  *
      10              :  * This program is free software: you can redistribute it and/or modify
      11              :  * it under the terms of the GNU General Public License version 3 as
      12              :  * published by the Free Software Foundation.
      13              :  *
      14              :  * This program is distributed in the hope that it will be useful,
      15              :  * but WITHOUT ANY WARRANTY; without even the implied warranty of
      16              :  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
      17              :  * GNU General Public License for more details.
      18              :  *
      19              :  * You should have received a copy of the GNU General Public License
      20              :  * along with this program.  If not, see <https://www.gnu.org/licenses/>.
      21              :  */
      22              : 
      23              : #include "widgetview.h"
      24              : 
      25              : #include <QWidget>
      26              : 
      27              : using namespace muse::uicomponents;
      28              : 
      29            0 : WidgetView::WidgetView(QQuickItem* parent)
      30            0 :     : QuickPaintedView(parent)
      31              : {
      32            0 :     setFlag(QQuickItem::ItemAcceptsDrops, true);
      33            0 :     setFlag(QQuickItem::ItemHasContents, true);
      34              : 
      35            0 :     setAcceptHoverEvents(true);
      36            0 :     setAcceptedMouseButtons(Qt::AllButtons);
      37            0 : }
      38              : 
      39            0 : void WidgetView::paint(QPainter* painter)
      40              : {
      41            0 :     if (qWidget()) {
      42            0 :         qWidget()->render(painter, QPoint(), QRegion(),
      43              :                           QWidget::DrawWindowBackground | QWidget::DrawChildren);
      44              :     }
      45            0 : }
      46              : 
      47            0 : bool WidgetView::event(QEvent* event)
      48              : {
      49            0 :     if (!m_widget) {
      50            0 :         return QQuickItem::event(event);
      51              :     }
      52              : 
      53            0 :     bool ok = true;
      54              : 
      55            0 :     switch (event->type()) {
      56            0 :     case QEvent::HoverEnter:
      57              :     case QEvent::HoverMove:
      58              :     case QEvent::HoverLeave:
      59            0 :         ok = handleHoverEvent(dynamic_cast<QHoverEvent*>(event));
      60            0 :         break;
      61            0 :     case QEvent::MouseButtonPress:
      62              :     case QEvent::MouseButtonDblClick:
      63            0 :         setFocus(true);
      64              :         [[fallthrough]];
      65            0 :     default:
      66            0 :         ok = m_widget->handleEvent(event);
      67            0 :         break;
      68              :     }
      69              : 
      70            0 :     if (ok) {
      71            0 :         update();
      72              :     }
      73              : 
      74            0 :     return ok;
      75              : }
      76              : 
      77            0 : bool WidgetView::handleHoverEvent(QHoverEvent* event)
      78              : {
      79            0 :     auto convertEventType = [](QEvent::Type type) {
      80              :         static const QMap<QEvent::Type, QEvent::Type> types {
      81              :             { QEvent::HoverLeave, QEvent::Leave },
      82              :             { QEvent::HoverEnter, QEvent::Enter },
      83              :             { QEvent::HoverMove, QEvent::MouseMove }
      84            0 :         };
      85              : 
      86            0 :         return types[type];
      87              :     };
      88              : 
      89            0 :     QEvent::Type convertedType = convertEventType(event->type());
      90              : 
      91            0 :     if (convertedType == QEvent::MouseMove) {
      92            0 :         QMouseEvent mouseEvent(convertedType, event->position(),
      93            0 :                                event->scenePosition(), event->globalPosition(),
      94            0 :                                Qt::NoButton, Qt::NoButton, event->modifiers());
      95            0 :         mouseEvent.setAccepted(event->isAccepted());
      96            0 :         mouseEvent.setTimestamp(event->timestamp());
      97            0 :         bool ok = m_widget->handleEvent(&mouseEvent);
      98            0 :         setCursor(qWidget()->cursor());
      99            0 :         return ok;
     100            0 :     }
     101              : 
     102            0 :     QEvent newEvent(convertedType);
     103            0 :     newEvent.setAccepted(event->isAccepted());
     104              : 
     105            0 :     return m_widget->handleEvent(&newEvent);
     106            0 : }
     107              : 
     108            0 : void WidgetView::componentComplete()
     109              : {
     110            0 :     QQuickItem::componentComplete();
     111              : 
     112            0 :     connect(this, &QQuickItem::widthChanged, [this]() {
     113            0 :         updateSizeConstraints();
     114            0 :     });
     115              : 
     116            0 :     connect(this, &QQuickItem::heightChanged, [this]() {
     117            0 :         updateSizeConstraints();
     118            0 :     });
     119            0 : }
     120              : 
     121            0 : QWidget* WidgetView::qWidget() const
     122              : {
     123            0 :     return m_widget ? m_widget->qWidget() : nullptr;
     124              : }
     125              : 
     126            0 : void WidgetView::updateSizeConstraints()
     127              : {
     128            0 :     if (qWidget()) {
     129            0 :         qWidget()->setFixedSize(width(), height());
     130              :     }
     131            0 : }
     132              : 
     133            0 : void WidgetView::setWidget(std::shared_ptr<IDisplayableWidget> widget)
     134              : {
     135            0 :     m_widget = widget;
     136              : 
     137            0 :     updateSizeConstraints();
     138            0 : }