b22317458c
Required to stop and disconnect the timer. Otherwise it's possible that the render is invoked after the Client got destroyed. This happened for example with e.g. opening Kickoff.
105 lines
2.3 KiB
C++
105 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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void reparent(Deleted *deleted) override;
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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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