173 lines
6 KiB
C++
173 lines
6 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 Rivo Laks <rivolaks@hot.ee>
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Copyright (C) 2008 Lucas Murray <lmurray@undefinedfire.com>
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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_PRESENTWINDOWS_H
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#define KWIN_PRESENTWINDOWS_H
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#include "presentwindows_proxy.h"
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#include <kwineffects.h>
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#include <kshortcut.h>
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namespace KWin
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{
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/**
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* Expose-like effect which shows all windows on current desktop side-by-side,
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* letting the user select active window.
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**/
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class PresentWindowsEffect
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: public QObject, public Effect
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{
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Q_OBJECT
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private:
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// Structures
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struct WindowData
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{
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bool visible;
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double opacity;
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double highlight;
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int slot;
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int slot_distance;
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EffectFrame* textFrame;
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EffectFrame* iconFrame;
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};
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typedef QHash<EffectWindow*, WindowData> DataHash;
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struct GridSize
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{
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int columns;
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int rows;
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};
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public:
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PresentWindowsEffect();
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virtual ~PresentWindowsEffect();
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virtual void reconfigure( ReconfigureFlags );
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virtual const void* proxy() const;
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// Screen painting
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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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// Window painting
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virtual void prePaintWindow( EffectWindow *w, WindowPrePaintData &data, int time );
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virtual void paintWindow( EffectWindow *w, int mask, QRegion region, WindowPaintData &data );
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// User interaction
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virtual void windowAdded( EffectWindow *w );
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virtual void windowClosed( EffectWindow *w );
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virtual void windowDeleted( EffectWindow *w );
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virtual bool borderActivated( ElectricBorder border );
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virtual void windowInputMouseEvent( Window w, QEvent *e );
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virtual void grabbedKeyboardEvent( QKeyEvent *e );
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// Tab box
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virtual void tabBoxAdded( int mode );
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virtual void tabBoxClosed();
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virtual void tabBoxUpdated();
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enum { LayoutNatural, LayoutRegularGrid, LayoutFlexibleGrid }; // Layout modes
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public slots:
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void setActive( bool active, bool closingTab = false ); // HACK: closingTab shouldn't be needed
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void toggleActive() { m_allDesktops = false; setActive( !m_activated ); }
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void toggleActiveAllDesktops() { m_allDesktops = true; setActive( !m_activated ); }
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// slots for global shortcut changed
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// needed to toggle the effect
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void globalShortcutChanged( const QKeySequence& seq );
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void globalShortcutChangedAll( const QKeySequence& seq );
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protected:
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// Window rearranging
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void rearrangeWindows();
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void calculateWindowTransformationsClosest( EffectWindowList windowlist, int screen );
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void calculateWindowTransformationsKompose( EffectWindowList windowlist, int screen );
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void calculateWindowTransformationsNatural( EffectWindowList windowlist, int screen );
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// Helper functions for window rearranging
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inline double aspectRatio( EffectWindow *w )
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{ return w->width() / double( w->height() ); }
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inline int widthForHeight( EffectWindow *w, int height )
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{ return int(( height / double( w->height() )) * w->width() ); }
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inline int heightForWidth( EffectWindow *w, int width )
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{ return int(( width / double( w->width() )) * w->height() ); }
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void assignSlots( EffectWindowList windowlist, const QRect &area, int columns, int rows );
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void getBestAssignments( EffectWindowList windowlist );
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bool isOverlappingAny( EffectWindow *w, const QHash<EffectWindow*, QRect> &targets, const QRegion &border );
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// Filter box
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void updateFilterFrame();
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// Helper functions
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bool isSelectableWindow( EffectWindow *w );
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bool isVisibleWindow( EffectWindow *w );
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void setHighlightedWindow( EffectWindow *w );
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EffectWindow* relativeWindow( EffectWindow *w, int xdiff, int ydiff, bool wrap ) const;
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EffectWindow* findFirstWindow() const;
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private:
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PresentWindowsEffectProxy m_proxy;
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friend class PresentWindowsEffectProxy;
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// User configuration settings
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QList<ElectricBorder> m_borderActivate;
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QList<ElectricBorder> m_borderActivateAll;
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int m_layoutMode;
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bool m_showCaptions;
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bool m_showIcons;
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bool m_tabBoxAllowed;
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int m_accuracy;
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bool m_fillGaps;
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double m_fadeDuration;
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bool m_showPanel;
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// Activation
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bool m_activated;
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bool m_allDesktops;
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bool m_ignoreMinimized;
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double m_decalOpacity;
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Window m_input;
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bool m_hasKeyboardGrab;
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bool m_tabBoxEnabled;
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// Window data
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WindowMotionManager m_motionManager;
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DataHash m_windowData;
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EffectWindow *m_highlightedWindow;
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// Grid layout info
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QList<GridSize> m_gridSizes;
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// Filter box
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EffectFrame m_filterFrame;
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QString m_windowFilter;
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// Shortcut - needed to toggle the effect
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KShortcut shortcut;
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KShortcut shortcutAll;
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};
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} // namespace
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#endif
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