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74 lines
1.9 KiB
C++
74 lines
1.9 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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SPDX-FileCopyrightText: 2007 Lubos Lunak <l.lunak@kde.org>
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SPDX-FileCopyrightText: 2011 Martin Gräßlin <mgraesslin@kde.org>
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SPDX-License-Identifier: GPL-2.0-or-later
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*/
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#ifndef KWIN_MAGNIFIER_H
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#define KWIN_MAGNIFIER_H
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#include <kwineffects.h>
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namespace KWin
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{
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class GLRenderTarget;
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class GLTexture;
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class XRenderPicture;
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class MagnifierEffect
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: public Effect
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{
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Q_OBJECT
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Q_PROPERTY(QSize magnifierSize READ magnifierSize)
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Q_PROPERTY(qreal targetZoom READ targetZoom)
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public:
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MagnifierEffect();
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~MagnifierEffect() override;
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void reconfigure(ReconfigureFlags) override;
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void prePaintScreen(ScreenPrePaintData& data, std::chrono::milliseconds presentTime) override;
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void paintScreen(int mask, const QRegion ®ion, ScreenPaintData& data) override;
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void postPaintScreen() override;
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bool isActive() const override;
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static bool supported();
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// for properties
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QSize magnifierSize() const {
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return magnifier_size;
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}
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qreal targetZoom() const {
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return target_zoom;
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}
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private Q_SLOTS:
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void zoomIn();
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void zoomOut();
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void toggle();
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void slotMouseChanged(const QPoint& pos, const QPoint& old,
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Qt::MouseButtons buttons, Qt::MouseButtons oldbuttons,
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Qt::KeyboardModifiers modifiers, Qt::KeyboardModifiers oldmodifiers);
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void slotWindowDamaged();
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void destroyPixmap();
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private:
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QRect magnifierArea(QPoint pos = cursorPos()) const;
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double zoom;
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double target_zoom;
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bool polling; // Mouse polling
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std::chrono::milliseconds m_lastPresentTime;
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QSize magnifier_size;
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GLTexture *m_texture;
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GLRenderTarget *m_fbo;
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#ifdef KWIN_HAVE_XRENDER_COMPOSITING
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xcb_pixmap_t m_pixmap;
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QSize m_pixmapSize;
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QScopedPointer<XRenderPicture> m_picture;
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#endif
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};
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} // namespace
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#endif
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