c5bebcd809
First XRender effect which gets ported over. Therefore required bits are added to CMakeLists.txt. Port to xcb is luckily rather straight forward. Though the QPixmap usage needs to be replaced by xcb_pixmap_t together with a XRenderPicture.
82 lines
2.4 KiB
C++
82 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 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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