617650d440
The surface size is a logical size, which renders it unsuitable for deciding whether the window pixmap needs to be discarded. We need to discard window pixmaps when the buffer size changes. That has a drawback though, discarding textures is kind of an overkill with linux-dmabuf. However, fixing that would involve changes in kwayland server that are far from being trivial. BUG: 422459
90 lines
2.8 KiB
C++
90 lines
2.8 KiB
C++
/********************************************************************
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KWin - the KDE window manager
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This file is part of the KDE project.
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Copyright (C) 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
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This program is free software; you can redistribute it and/or modify
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it under the terms of the GNU General Public License as published by
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the Free Software Foundation; either version 2 of the License, or
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(at your option) any later version.
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This program is distributed in the hope that it will be useful,
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but WITHOUT ANY WARRANTY; without even the implied warranty of
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MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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GNU General Public License for more details.
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You should have received a copy of the GNU General Public License
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along with this program. If not, see <http://www.gnu.org/licenses/>.
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*********************************************************************/
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#pragma once
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#include <QObject>
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namespace KWaylandServer
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{
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class SurfaceInterface;
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class SubSurfaceInterface;
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}
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namespace KWin
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{
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/**
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* The SubSurfaceMonitor class provides a convenient way for monitoring changes in
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* sub-surface trees, e.g. addition or removal of sub-surfaces, etc.
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*/
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class SubSurfaceMonitor : public QObject
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{
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Q_OBJECT
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public:
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/**
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* Constructs a SubSurfaceTreeMonitor with the given @a surface and @a parent.
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*/
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SubSurfaceMonitor(KWaylandServer::SurfaceInterface *surface, QObject *parent);
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Q_SIGNALS:
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/**
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* This signal is emitted when a new sub-surface has been added to the tree.
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*/
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void subSurfaceAdded();
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/**
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* This signal is emitted when a sub-surface has been removed from the tree.
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*/
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void subSurfaceRemoved();
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/**
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* This signal is emitted when a sub-surface has been moved relative to its parent.
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*/
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void subSurfaceMoved();
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/**
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* This signal is emitted when a sub-surface has been resized.
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*/
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void subSurfaceResized();
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/**
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* This signal is emitted when a sub-surface is mapped.
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*/
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void subSurfaceMapped();
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/**
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* This signal is emitted when a sub-surface is unmapped.
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*/
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void subSurfaceUnmapped();
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/**
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* This signal is emitted when the mapping between the surface-local coordinate space
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* and the buffer coordinate space for a sub-surface has changed.
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*/
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void subSurfaceSurfaceToBufferMatrixChanged();
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/**
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* This signal is emitted when the buffer size of a subsurface has changed.
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*/
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void subSurfaceBufferSizeChanged();
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private:
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void registerSubSurface(KWaylandServer::SubSurfaceInterface *subSurface);
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void unregisterSubSurface(KWaylandServer::SubSurfaceInterface *subSurface);
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void registerSurface(KWaylandServer::SurfaceInterface *surface);
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void unregisterSurface(KWaylandServer::SurfaceInterface *surface);
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};
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} // namespace KWin
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