cb7a9456c0
Currently in order to load an Xcursor theme, kwin uses libwayland api, which looks really awkward because of the way how the compositor talks to itself via the internal connection. The main motivation behind this change is to limit the usage of kwayland client api in kwin.
102 lines
2.6 KiB
C++
102 lines
2.6 KiB
C++
/*
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* Copyright (C) 2020 Vlad Zahorodnii <vlad.zahorodnii@kde.org>
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*
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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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*
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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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*
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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 <kwin_export.h>
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#include <QImage>
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#include <QMap>
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#include <QVector>
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#include <chrono>
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namespace KWin
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{
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/**
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* The KXcursorSprite class represents a single sprite in the Xcursor theme.
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*/
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class KWIN_EXPORT KXcursorSprite
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{
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public:
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/**
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* Constructs an empty XcursorSprite.
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*/
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KXcursorSprite();
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/**
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* Constructs an XcursorSprite with the specified @a data, @a hotspot, and @a delay.
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*/
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KXcursorSprite(const QImage &data, const QPoint &hotspot,
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const std::chrono::milliseconds &delay);
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/**
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* Returns the image for this sprite.
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*/
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QImage data() const;
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/**
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* Returns the hotspot for this sprite. (0, 0) corresponds to the upper left corner.
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*
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* The coordinates of the hotspot are in device pixels.
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*/
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QPoint hotspot() const;
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/**
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* Returns the time interval between this sprite and the next one, in milliseconds.
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*/
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std::chrono::milliseconds delay() const;
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private:
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QImage m_data;
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QPoint m_hotspot;
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std::chrono::milliseconds m_delay;
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};
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/**
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* The KXcursorTheme class represents an Xcursor theme.
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*/
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class KWIN_EXPORT KXcursorTheme
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{
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public:
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/**
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* Returns the ratio between device pixels and logical pixels for the Xcursor theme.
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*/
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qreal devicePixelRatio() const;
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/**
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* Returns @c true if the Xcursor theme is empty; otherwise returns @c false.
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*/
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bool isEmpty() const;
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/**
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* Returns the list of cursor sprites for the cursor with the given @a name.
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*/
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QVector<KXcursorSprite> shape(const QByteArray &name) const;
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/**
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* Attempts to load the Xcursor theme with the given @a themeName and @a size.
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*/
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static KXcursorTheme fromTheme(const QString &themeName, int size, qreal dpr);
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private:
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QMap<QByteArray, QVector<KXcursorSprite>> m_cursorRegistry;
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qreal m_devicePixelRatio = 1;
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};
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} // namespace KWin
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