qxcbscreen.h - mozsearch

// Copyright (C) 2016 The Qt Company Ltd.

// SPDX-License-Identifier: LicenseRef-Qt-Commercial OR LGPL-3.0-only OR GPL-2.0-only OR GPL-3.0-only

// Qt-Security score:significant reason:default

#pragma once

#include <qpa/qplatformscreen.h>

#include <qpa/qplatformscreen_p.h>

#include <QtCore/QString>

#include <xcb/xcb.h>

#include <xcb/randr.h>

#include <xcb/xfixes.h>

#include "qxcbobject.h"

#include <private/qfontengine_p.h>

#include <QtGui/private/qedidparser_p.h>

#include <memory>

QT_BEGIN_NAMESPACE

class QXcbConnection;

class QXcbCursor;

class QXcbXSettings;

#ifndef QT_NO_DEBUG_STREAM

class QDebug;

#endif

class QXcbVirtualDesktop : public QXcbObject

public:

    QXcbVirtualDesktop(QXcbConnection *connection, xcb_screen_t *screen, int number);

    ~QXcbVirtualDesktop();

    xcb_screen_t *screen() const { return m_screen; }

    int number() const { return m_number; }

    QSize size() const { return QSize(m_screen->width_in_pixels, m_screen->height_in_pixels); }

    QSize physicalSize() const { return QSize(m_screen->width_in_millimeters, m_screen->height_in_millimeters); }

    QDpi dpi() const;

    xcb_window_t root() const { return m_screen->root; }

    QXcbScreen *screenAt(const QPoint &pos) const;

    QList<QPlatformScreen *> screens() const { return m_screens; }

    void setScreens(QList<QPlatformScreen *> &&sl) { m_screens = std::move(sl); }

    void removeScreen(QPlatformScreen *s) { m_screens.removeOne(s); }

    void addScreen(QPlatformScreen *s);

    void setPrimaryScreen(QPlatformScreen *s);

    QXcbXSettings *xSettings() const;

    bool compositingActive() const;

    void updateWorkArea();

    QRect availableGeometry(const QRect &screenGeometry) const;

    void handleXFixesSelectionNotify(xcb_xfixes_selection_notify_event_t *notify_event);

    void subscribeToXFixesSelectionNotify();

    void handleScreenChange(xcb_randr_screen_change_notify_event_t *change_event);

    int forcedDpi() const { return m_forcedDpi; }

    QFontEngine::HintStyle hintStyle() const { return m_hintStyle; }

    QFontEngine::SubpixelAntialiasingType subpixelType() const { return m_subpixelType; }

    int antialiasingEnabled() const { return m_antialiasingEnabled; }

    QString windowManagerName() const { return m_windowManagerName; }

    QSurfaceFormat surfaceFormatFor(const QSurfaceFormat &format) const;

    const xcb_visualtype_t *visualForFormat(const QSurfaceFormat &format) const;

    const xcb_visualtype_t *visualForId(xcb_visualid_t) const;

    quint8 depthOfVisual(xcb_visualid_t) const;

    xcb_colormap_t colormapForVisual(xcb_visualid_t) const;

private:

    QRect getWorkArea() const;

    static bool xResource(const QByteArray &identifier,

                          const QByteArray &expectedIdentifier,

                          QByteArray &stringValue);

    void readXResources();

    bool setDpiFromXSettings(const QVariant &property);

    xcb_screen_t *m_screen;

    const int m_number;

    QList<QPlatformScreen *> m_screens;

    QXcbXSettings *m_xSettings = nullptr;

    xcb_atom_t m_net_wm_cm_atom = 0;

    bool m_compositingActive = false;

    QRect m_workArea;

    int m_forcedDpi = -1;

    QFontEngine::HintStyle m_hintStyle = QFontEngine::HintUnset;

    QFontEngine::SubpixelAntialiasingType m_subpixelType = QFontEngine::Subpixel_Unset;

    int m_antialiasingEnabled = -1;

    QString m_windowManagerName;

    QMap<xcb_visualid_t, xcb_visualtype_t> m_visuals;

    QMap<xcb_visualid_t, quint8> m_visualDepths;

    mutable QMap<xcb_visualid_t, xcb_colormap_t> m_visualColormaps;

    uint16_t m_rotation = 0;

    friend class QXcbConnection;

};

class Q_XCB_EXPORT QXcbScreen : public QXcbObject, public QPlatformScreen

                              , public QNativeInterface::Private::QXcbScreen

public:

    QXcbScreen(QXcbConnection *connection, QXcbVirtualDesktop *virtualDesktop,

               xcb_randr_output_t outputId, xcb_randr_get_output_info_reply_t *outputInfo);

    QXcbScreen(QXcbConnection *connection, QXcbVirtualDesktop *virtualDesktop,

               xcb_randr_monitor_info_t *monitorInfo, xcb_timestamp_t timestamp = XCB_NONE);

    ~QXcbScreen();

    QString getOutputName(xcb_randr_get_output_info_reply_t *outputInfo);

    QString getName(xcb_randr_monitor_info_t *monitorInfo);

    QPixmap grabWindow(WId window, int x, int y, int width, int height) const override;

    QWindow *topLevelAt(const QPoint &point) const override;

    QString manufacturer() const override;

    QString model() const override;

    QString serialNumber() const override;

    QRect geometry() const override { return m_geometry; }

    QRect availableGeometry() const override;

    int depth() const override { return screen()->root_depth; }

    QImage::Format format() const override;

    QColorSpace colorSpace() const override { return m_colorSpace; }

    QSizeF physicalSize() const override { return m_sizeMillimeters; }

    QDpi logicalDpi() const override;

    QDpi logicalBaseDpi() const override { return QDpi(96, 96); }

    QPlatformCursor *cursor() const override;

    qreal refreshRate() const override { return m_refreshRate; }

    Qt::ScreenOrientation orientation() const override { return m_orientation; }

    QList<QPlatformScreen *> virtualSiblings() const override { return m_virtualDesktop->screens(); }

    QXcbVirtualDesktop *virtualDesktop() const { return m_virtualDesktop; }

    void setPrimary(bool primary) { m_primary = primary; }

    bool isPrimary() const { return m_primary; }

    int screenNumber() const { return m_virtualDesktop->number(); }

    int virtualDesktopNumber() const override { return screenNumber(); }

    xcb_screen_t *screen() const { return m_virtualDesktop->screen(); }

    xcb_window_t root() const { return screen()->root; }

    xcb_randr_output_t output() const { return m_output; }

    xcb_randr_crtc_t crtc() const { return m_crtc; }

    xcb_randr_mode_t mode() const { return m_mode; }

    QList<xcb_randr_output_t> outputs() const { return m_outputs; }

    QList<xcb_randr_crtc_t> crtcs() const { return m_crtcs; }

    void setOutput(xcb_randr_output_t outputId,

                   xcb_randr_get_output_info_reply_t *outputInfo);

    void setCrtc(xcb_randr_crtc_t crtc) { m_crtc = crtc; }

    void setMonitor(xcb_randr_monitor_info_t *monitorInfo, xcb_timestamp_t timestamp = XCB_NONE);

    QString defaultName();

    bool isPrimaryInXScreen();

    void windowShown(QXcbWindow *window);

    QString windowManagerName() const { return m_virtualDesktop->windowManagerName(); }

    QSurfaceFormat surfaceFormatFor(const QSurfaceFormat &format) const;

    const xcb_visualtype_t *visualForFormat(const QSurfaceFormat &format) const { return m_virtualDesktop->visualForFormat(format); }

    const xcb_visualtype_t *visualForId(xcb_visualid_t visualid) const;

    xcb_colormap_t colormapForVisual(xcb_visualid_t visualid) const { return m_virtualDesktop->colormapForVisual(visualid); }

    quint8 depthOfVisual(xcb_visualid_t visualid) const { return m_virtualDesktop->depthOfVisual(visualid); }

    QString name() const override { return m_outputName; }

    void updateGeometry(const QRect &geometry, uint8_t rotation);

    void updateGeometry(xcb_timestamp_t timestamp = XCB_TIME_CURRENT_TIME);

    void updateAvailableGeometry();

    void updateRefreshRate(xcb_randr_mode_t mode);

    QFontEngine::HintStyle hintStyle() const { return m_virtualDesktop->hintStyle(); }

    QFontEngine::SubpixelAntialiasingType subpixelType() const { return m_virtualDesktop->subpixelType(); }

    int antialiasingEnabled() const { return m_virtualDesktop->antialiasingEnabled(); }

    QXcbXSettings *xSettings() const;

private:

    void sendStartupMessage(const QByteArray &message) const;

    int forcedDpi() const;

    void updateColorSpaceAndEdid();

    QByteArray getOutputProperty(xcb_atom_t atom) const;

    QByteArray getEdid() const;

    QXcbVirtualDesktop *m_virtualDesktop;

    xcb_randr_monitor_info_t *m_monitor;

    xcb_randr_output_t m_output;

    xcb_randr_crtc_t m_crtc;

    xcb_randr_mode_t m_mode = XCB_NONE;

    bool m_primary = false;

    bool m_singlescreen = false;

    QList<xcb_randr_output_t> m_outputs;

    QList<xcb_randr_crtc_t> m_crtcs;

    QString m_outputName;

    QSizeF m_outputSizeMillimeters;

    QSizeF m_sizeMillimeters;

    QRect m_geometry;

    QRect m_availableGeometry;

    QColorSpace m_colorSpace;

    Qt::ScreenOrientation m_orientation = Qt::PrimaryOrientation;

    std::unique_ptr<QXcbCursor> m_cursor;

    qreal m_refreshRate = 60.0;

    QEdidParser m_edid;

    friend class QXcbConnection;

    friend class QXcbVirtualDesktop;

};

#ifndef QT_NO_DEBUG_STREAM

Q_XCB_EXPORT QDebug operator<<(QDebug, const QXcbScreen *);

#endif

QT_END_NAMESPACE

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