37aef0c015
From the spec
On surface.attach requests to the pointer surface, hotspot_x
and hotspot_y are decremented by the x and y parameters
passed to the request. Attach must be confirmed by
wl_surface.commit as usual.
In practice, I don't think it matters that much as most toolkits use
wl_pointer.set_cursor to change the hotspot.
163 lines
3.3 KiB
C++
163 lines
3.3 KiB
C++
/*
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SPDX-FileCopyrightText: 2022 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#include "cursorsource.h"
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#include "cursor.h"
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#include "wayland/surface_interface.h"
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namespace KWin
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{
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CursorSource::CursorSource(QObject *parent)
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: QObject(parent)
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{
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}
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QSizeF CursorSource::size() const
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{
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return m_size;
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}
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QPointF CursorSource::hotspot() const
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{
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return m_hotspot;
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}
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ShapeCursorSource::ShapeCursorSource(QObject *parent)
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: CursorSource(parent)
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{
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m_delayTimer.setSingleShot(true);
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connect(&m_delayTimer, &QTimer::timeout, this, &ShapeCursorSource::selectNextSprite);
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}
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QImage ShapeCursorSource::image() const
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{
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return m_image;
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}
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QByteArray ShapeCursorSource::shape() const
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{
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return m_shape;
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}
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void ShapeCursorSource::setShape(const QByteArray &shape)
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{
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if (m_shape != shape) {
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m_shape = shape;
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refresh();
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}
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}
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void ShapeCursorSource::setShape(Qt::CursorShape shape)
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{
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setShape(CursorShape(shape).name());
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}
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KXcursorTheme ShapeCursorSource::theme() const
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{
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return m_theme;
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}
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void ShapeCursorSource::setTheme(const KXcursorTheme &theme)
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{
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if (m_theme != theme) {
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m_theme = theme;
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refresh();
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}
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}
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void ShapeCursorSource::refresh()
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{
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m_currentSprite = -1;
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m_delayTimer.stop();
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m_sprites = m_theme.shape(m_shape);
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if (m_sprites.isEmpty()) {
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const auto alternativeNames = Cursor::cursorAlternativeNames(m_shape);
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for (const QByteArray &alternativeName : alternativeNames) {
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m_sprites = m_theme.shape(alternativeName);
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if (!m_sprites.isEmpty()) {
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break;
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}
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}
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}
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if (!m_sprites.isEmpty()) {
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selectSprite(0);
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}
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}
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void ShapeCursorSource::selectNextSprite()
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{
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selectSprite((m_currentSprite + 1) % m_sprites.size());
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}
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void ShapeCursorSource::selectSprite(int index)
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{
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if (m_currentSprite == index) {
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return;
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}
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const KXcursorSprite &sprite = m_sprites[index];
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m_currentSprite = index;
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m_image = sprite.data();
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m_size = QSizeF(m_image.size()) / m_image.devicePixelRatio();
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m_hotspot = sprite.hotspot();
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if (sprite.delay().count() && m_sprites.size() > 1) {
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m_delayTimer.start(sprite.delay());
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}
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Q_EMIT changed();
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}
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SurfaceCursorSource::SurfaceCursorSource(QObject *parent)
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: CursorSource(parent)
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{
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}
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KWaylandServer::SurfaceInterface *SurfaceCursorSource::surface() const
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{
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return m_surface;
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}
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void SurfaceCursorSource::refresh()
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{
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m_size = m_surface->size();
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m_hotspot -= m_surface->offset();
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Q_EMIT changed();
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}
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void SurfaceCursorSource::update(KWaylandServer::SurfaceInterface *surface, const QPointF &hotspot)
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{
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bool dirty = false;
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if (m_hotspot != hotspot) {
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dirty = true;
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m_hotspot = hotspot;
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}
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if (m_surface != surface) {
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dirty = true;
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if (m_surface) {
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disconnect(m_surface, &KWaylandServer::SurfaceInterface::committed, this, &SurfaceCursorSource::refresh);
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}
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m_surface = surface;
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if (m_surface) {
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m_size = surface->size();
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connect(m_surface, &KWaylandServer::SurfaceInterface::committed, this, &SurfaceCursorSource::refresh);
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} else {
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m_size = QSizeF(0, 0);
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}
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}
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if (dirty) {
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Q_EMIT changed();
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}
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}
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} // namespace KWin
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