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158 lines
4.3 KiB
158 lines
4.3 KiB
#ifndef breezeframeshadow_h |
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#define breezeframeshadow_h |
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/************************************************************************* |
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* Copyright (C) 2014 by Hugo Pereira Da Costa <hugo.pereira@free.fr> * |
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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, write to the * |
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* Free Software Foundation, Inc., * |
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA . * |
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*************************************************************************/ |
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#include "breeze.h" |
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#include "breezeaddeventfilter.h" |
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#include "breezehelper.h" |
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#include <QEvent> |
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#include <QObject> |
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#include <QSet> |
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#include <QWidget> |
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#include <QPaintEvent> |
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#include <KColorScheme> |
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namespace Breeze |
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{ |
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//* shadow manager |
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class FrameShadowFactory: public QObject |
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{ |
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Q_OBJECT |
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public: |
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//* constructor |
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explicit FrameShadowFactory( QObject* parent ): |
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QObject( parent ) |
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{} |
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//* destructor |
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virtual ~FrameShadowFactory( void ) |
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{} |
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//* register widget |
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bool registerWidget( QWidget*, Helper& ); |
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//* unregister |
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void unregisterWidget( QWidget* ); |
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//* true if widget is registered |
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bool isRegistered( const QWidget* widget ) const |
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{ return _registeredWidgets.contains( widget ); } |
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//* event filter |
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virtual bool eventFilter( QObject*, QEvent*); |
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//* update state |
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void updateState( const QWidget*, bool focus, bool hover, qreal opacity, AnimationMode ) const; |
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//* update shadows geometry |
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void updateShadowsGeometry( const QObject*, QRect ) const; |
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protected: |
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//* install shadows on given widget |
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void installShadows( QWidget*, Helper& ); |
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//* remove shadows from widget |
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void removeShadows( QWidget* ); |
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//* raise shadows |
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void raiseShadows( QObject* ) const; |
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//* update shadows |
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void update( QObject* ) const; |
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//* install shadow on given side |
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void installShadow( QWidget*, Helper&, Side ) const; |
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protected Q_SLOTS: |
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//* triggered by object destruction |
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void widgetDestroyed( QObject* ); |
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private: |
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//* needed to block ChildAdded events when creating shadows |
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AddEventFilter _addEventFilter; |
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//* set of registered widgets |
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QSet<const QObject*> _registeredWidgets; |
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}; |
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//* frame shadow |
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/** this allows the shadow to be painted over the widgets viewport */ |
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class FrameShadow : public QWidget |
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{ |
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Q_OBJECT |
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public: |
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//* constructor |
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FrameShadow( Side, Helper& ); |
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//* destructor |
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virtual ~FrameShadow() |
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{} |
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//* update geometry |
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virtual void updateGeometry( QRect ); |
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//* update state |
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void updateState( bool focus, bool hover, qreal opacity, AnimationMode ); |
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protected: |
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//* painting |
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virtual void paintEvent(QPaintEvent *); |
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//* return viewport associated to parent widget |
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virtual QWidget* viewport( void ) const; |
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private: |
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//* helper |
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Helper& _helper; |
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//* shadow area |
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Side _area; |
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//* margins |
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/** offsets between update rect and parent widget rect. It is set via updateGeometry */ |
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QMargins _margins; |
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//*@name widget state |
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//@{ |
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bool _hasFocus; |
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bool _mouseOver; |
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qreal _opacity; |
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AnimationMode _mode; |
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//@} |
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}; |
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} |
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#endif
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