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156 lines
3.5 KiB
156 lines
3.5 KiB
/* |
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* SPDX-FileCopyrightText: 2014 Hugo Pereira Da Costa <hugo.pereira@free.fr> |
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* |
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* SPDX-License-Identifier: GPL-2.0-or-later |
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*/ |
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#ifndef breezemdiwindowshadow_h |
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#define breezemdiwindowshadow_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 <QPointer> |
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#include "breezetileset.h" |
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namespace Breeze |
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{ |
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class ShadowHelper; |
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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 MdiWindowShadow: 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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explicit MdiWindowShadow( QWidget*, const TileSet & ); |
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//* update geometry |
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void updateGeometry(); |
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//* update ZOrder |
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void updateZOrder(); |
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//* set associated window |
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void setWidget( QWidget* value ) |
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{ _widget = value; } |
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//* associated window |
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QWidget* widget() const |
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{ return _widget; } |
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protected: |
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//* painting |
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void paintEvent(QPaintEvent *) override; |
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private: |
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//* associated widget |
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QWidget* _widget = nullptr; |
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//* tileset rect, used for painting |
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QRect _shadowTilesRect; |
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//* tileset used to draw shadow |
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TileSet _shadowTiles; |
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}; |
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//* shadow manager |
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class MdiWindowShadowFactory: 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 MdiWindowShadowFactory( QObject* ); |
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//* set shadow helper |
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void setShadowHelper( ShadowHelper* shadowHelper ) |
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{ _shadowHelper = shadowHelper; } |
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//* register widget |
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bool registerWidget( QWidget* ); |
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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 QObject* widget ) const |
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{ return _registeredWidgets.contains( widget ); } |
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//* event filter |
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bool eventFilter( QObject*, QEvent*) override; |
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protected: |
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//* find shadow matching a given object |
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MdiWindowShadow* findShadow( QObject* ) const; |
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//* install shadows on given widget |
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void installShadow( QObject* ); |
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//* remove shadows from widget |
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void removeShadow( QObject* ); |
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//* hide shadows |
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void hideShadows( QObject* object ) const |
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{ |
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if( MdiWindowShadow* windowShadow = findShadow( object ) ) |
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{ windowShadow->hide(); } |
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} |
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//* update ZOrder |
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void updateShadowZOrder( QObject* object ) const |
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{ |
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if( MdiWindowShadow* windowShadow = findShadow( object ) ) |
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{ |
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if( !windowShadow->isVisible() ) windowShadow->show(); |
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windowShadow->updateZOrder(); |
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} |
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} |
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//* update shadows geometry |
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void updateShadowGeometry( QObject* object ) const |
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{ |
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if( MdiWindowShadow* windowShadow = findShadow( object ) ) |
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{ windowShadow->updateGeometry(); } |
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} |
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//* update shadows |
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void update( QObject* object ) const |
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{ |
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if( MdiWindowShadow* windowShadow = findShadow( object ) ) |
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{ windowShadow->update(); } |
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} |
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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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//* set of registered widgets |
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QSet<const QObject*> _registeredWidgets; |
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//* shadow helper used to generate the shadows |
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QPointer<ShadowHelper> _shadowHelper; |
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}; |
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} |
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#endif
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