File indexing completed on 2024-04-28 05:30:14

 /*
     SPDX-FileCopyrightText: 2022 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
 
     SPDX-License-Identifier: GPL-2.0-or-later
 */
 
 #include "cursorsource.h"
 #include "cursor.h"
 #include "wayland/surface.h"
 
 namespace KWin
 {
 
 CursorSource::CursorSource(QObject *parent)
     : QObject(parent)
 {
 }
 
 QSizeF CursorSource::size() const
 {
     return m_size;
 }
 
 QPointF CursorSource::hotspot() const
 {
     return m_hotspot;
 }
 
 ShapeCursorSource::ShapeCursorSource(QObject *parent)
     : CursorSource(parent)
 {
     m_delayTimer.setSingleShot(true);
     connect(&m_delayTimer, &QTimer::timeout, this, &ShapeCursorSource::selectNextSprite);
 }
 
 QImage ShapeCursorSource::image() const
 {
     return m_image;
 }
 
 QByteArray ShapeCursorSource::shape() const
 {
     return m_shape;
 }
 
 void ShapeCursorSource::setShape(const QByteArray &shape)
 {
     if (m_shape != shape) {
         m_shape = shape;
         refresh();
     }
 }
 
 void ShapeCursorSource::setShape(Qt::CursorShape shape)
 {
     setShape(CursorShape(shape).name());
 }
 
 KXcursorTheme ShapeCursorSource::theme() const
 {
     return m_theme;
 }
 
 void ShapeCursorSource::setTheme(const KXcursorTheme &theme)
 {
     if (m_theme != theme) {
         m_theme = theme;
         refresh();
     }
 }
 
 void ShapeCursorSource::refresh()
 {
     m_currentSprite = -1;
     m_delayTimer.stop();
 
     m_sprites = m_theme.shape(m_shape);
     if (m_sprites.isEmpty()) {
         const auto alternativeNames = CursorShape::alternatives(m_shape);
         for (const QByteArray &alternativeName : alternativeNames) {
             m_sprites = m_theme.shape(alternativeName);
             if (!m_sprites.isEmpty()) {
                 break;
             }
         }
     }
 
     if (!m_sprites.isEmpty()) {
         selectSprite(0);
     }
 }
 
 void ShapeCursorSource::selectNextSprite()
 {
     selectSprite((m_currentSprite + 1) % m_sprites.size());
 }
 
 void ShapeCursorSource::selectSprite(int index)
 {
     if (m_currentSprite == index) {
         return;
     }
     const KXcursorSprite &sprite = m_sprites[index];
     m_currentSprite = index;
     m_image = sprite.data();
     m_size = QSizeF(m_image.size()) / m_image.devicePixelRatio();
     m_hotspot = sprite.hotspot();
     if (sprite.delay().count() && m_sprites.size() > 1) {
         m_delayTimer.start(sprite.delay());
     }
     Q_EMIT changed();
 }
 
 SurfaceCursorSource::SurfaceCursorSource(QObject *parent)
     : CursorSource(parent)
 {
 }
 
 SurfaceInterface *SurfaceCursorSource::surface() const
 {
     return m_surface;
 }
 
 void SurfaceCursorSource::refresh()
 {
     m_size = m_surface->size();
     m_hotspot -= m_surface->offset();
     Q_EMIT changed();
 }
 
 void SurfaceCursorSource::reset()
 {
     m_size = QSizeF(0, 0);
     m_hotspot = QPointF(0, 0);
     m_surface = nullptr;
     Q_EMIT changed();
 }
 
 void SurfaceCursorSource::update(SurfaceInterface *surface, const QPointF &hotspot)
 {
     bool dirty = false;
 
     if (m_hotspot != hotspot) {
         dirty = true;
         m_hotspot = hotspot;
     }
 
     if (m_surface != surface) {
         dirty = true;
 
         if (m_surface) {
             disconnect(m_surface, &SurfaceInterface::committed, this, &SurfaceCursorSource::refresh);
             disconnect(m_surface, &SurfaceInterface::destroyed, this, &SurfaceCursorSource::reset);
         }
 
         m_surface = surface;
 
         if (m_surface) {
             m_size = surface->size();
 
             connect(m_surface, &SurfaceInterface::committed, this, &SurfaceCursorSource::refresh);
             connect(m_surface, &SurfaceInterface::destroyed, this, &SurfaceCursorSource::reset);
         } else {
             m_size = QSizeF(0, 0);
         }
     }
 
     if (dirty) {
         Q_EMIT changed();
     }
 }
 
 } // namespace KWin
 
 #include "moc_cursorsource.cpp"