83 lines
2.4 KiB
C++
83 lines
2.4 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) 2007 Lubos Lunak <l.lunak@kde.org>
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Copyright (C) 2011 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_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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virtual ~MagnifierEffect();
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virtual void reconfigure(ReconfigureFlags);
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virtual void prePaintScreen(ScreenPrePaintData& data, int time);
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virtual void paintScreen(int mask, QRegion region, ScreenPaintData& data);
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virtual void postPaintScreen();
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virtual bool isActive() const;
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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 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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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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