c12199a8e0
The Renderer gets reparented to the Deleted. While passing it to the Deleted the Scene's implementation can ensure that the buffers are up to date. After passing to Deleted it's no longer allowed to call the render method.
103 lines
2.3 KiB
C++
103 lines
2.3 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) 2014 Martin Gräßlin <mgraesslin@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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#ifndef KWIN_DECORATION_RENDERER_H
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#define KWIN_DECORATION_RENDERER_H
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#include <QObject>
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#include <QRegion>
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#include <xcb/xcb.h>
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class QTimer;
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namespace KWin
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{
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class Deleted;
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namespace Decoration
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{
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class DecoratedClientImpl;
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class Renderer : public QObject
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{
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Q_OBJECT
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public:
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virtual ~Renderer();
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void schedule(const QRect &rect);
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/**
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* Reparents this Renderer to the @p deleted.
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* After this call the Renderer is no longer able to render
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* anything, client() returns a nullptr.
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**/
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virtual void reparent(Deleted *deleted);
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Q_SIGNALS:
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void renderScheduled(const QRect &geo);
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protected:
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explicit Renderer(DecoratedClientImpl *client);
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/**
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* @returns the scheduled paint region and resets
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**/
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QRegion getScheduled();
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virtual void render() = 0;
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DecoratedClientImpl *client() {
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return m_client;
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}
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bool areImageSizesDirty() const {
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return m_imageSizesDirty;
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}
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void resetImageSizesDirty() {
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m_imageSizesDirty = false;
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}
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QImage renderToImage(const QRect &geo);
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private:
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DecoratedClientImpl *m_client;
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QRegion m_scheduled;
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bool m_imageSizesDirty;
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};
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class X11Renderer : public Renderer
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{
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Q_OBJECT
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public:
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explicit X11Renderer(DecoratedClientImpl *client);
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virtual ~X11Renderer();
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protected:
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void render() override;
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private:
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QTimer *m_scheduleTimer;
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xcb_gcontext_t m_gc;
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};
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}
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}
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#endif
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