09489a4c2b
Summary: So far KWin does not know which Compositors the platform actually supports. This results in KWin happily trying to use the OpenGL compositor on fbdev or the QPainter compositor on hwcomposer although that is obviously going to fail as the platform doesn't support this. By adding a pure virtual method all Platforms can define what they support. In a later step the Compositor can use this to create an appropriate scene and also perform proper fallback handling in case the scene creation fails. Test Plan: Compiles Reviewers: #kwin, #plasma Subscribers: plasma-devel, kwin Tags: #kwin Differential Revision: https://phabricator.kde.org/D8316
113 lines
3.5 KiB
C++
113 lines
3.5 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) 2015 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_X11WINDOWED_BACKEND_H
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#define KWIN_X11WINDOWED_BACKEND_H
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#include "platform.h"
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#include <kwin_export.h>
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#include <QObject>
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#include <QSize>
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#include <xcb/xcb.h>
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struct _XDisplay;
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typedef struct _XDisplay Display;
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typedef struct _XCBKeySymbols xcb_key_symbols_t;
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class NETWinInfo;
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namespace KWin
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{
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class KWIN_EXPORT X11WindowedBackend : public Platform
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{
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Q_OBJECT
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Q_INTERFACES(KWin::Platform)
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Q_PLUGIN_METADATA(IID "org.kde.kwin.Platform" FILE "x11.json")
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Q_PROPERTY(QSize size READ screenSize NOTIFY sizeChanged)
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public:
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X11WindowedBackend(QObject *parent = nullptr);
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virtual ~X11WindowedBackend();
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void init() override;
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QVector<QRect> screenGeometries() const override;
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QVector<qreal> screenScales() const override;
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xcb_connection_t *connection() const {
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return m_connection;
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}
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int screenNumer() const {
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return m_screenNumber;
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}
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xcb_window_t window() const {
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return windowForScreen(0);
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}
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xcb_window_t windowForScreen(int screen) const;
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Display *display() const {
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return m_display;
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}
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xcb_window_t rootWindow() const;
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Screens *createScreens(QObject *parent = nullptr) override;
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OpenGLBackend *createOpenGLBackend() override;
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QPainterBackend* createQPainterBackend() override;
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void warpPointer(const QPointF &globalPos) override;
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QVector<CompositingType> supportedCompositors() const override {
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return QVector<CompositingType>{OpenGLCompositing, QPainterCompositing};
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}
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Q_SIGNALS:
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void sizeChanged();
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private:
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void createWindow();
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void startEventReading();
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void grabKeyboard(xcb_timestamp_t time);
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void updateWindowTitle();
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void handleEvent(xcb_generic_event_t *event);
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void handleClientMessage(xcb_client_message_event_t *event);
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void handleButtonPress(xcb_button_press_event_t *event);
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void handleExpose(xcb_expose_event_t *event);
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void updateSize(xcb_configure_notify_event_t *event);
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void createCursor(const QImage &img, const QPoint &hotspot);
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xcb_connection_t *m_connection = nullptr;
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xcb_screen_t *m_screen = nullptr;
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xcb_key_symbols_t *m_keySymbols = nullptr;
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int m_screenNumber = 0;
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struct Output {
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xcb_window_t window = XCB_WINDOW_NONE;
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QSize size;
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qreal scale = 1;
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QPoint xPosition;
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QPoint internalPosition;
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NETWinInfo *winInfo = nullptr;
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};
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QVector<Output> m_windows;
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xcb_atom_t m_protocols = XCB_ATOM_NONE;
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xcb_atom_t m_deleteWindowProtocol = XCB_ATOM_NONE;
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xcb_cursor_t m_cursor = XCB_CURSOR_NONE;
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Display *m_display = nullptr;
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bool m_keyboardGrabbed = false;
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};
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}
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#endif
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