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130 lines
2.7 KiB
130 lines
2.7 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 breezeframeshadow_h |
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#define breezeframeshadow_h |
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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 <KColorScheme> |
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#include <QPaintEvent> |
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#include <QWidget> |
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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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} |
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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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{ |
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return _registeredWidgets.contains(widget); |
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} |
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//* event filter |
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bool eventFilter(QObject *, QEvent *) override; |
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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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//* 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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void paintEvent(QPaintEvent *) override; |
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//* return viewport associated to parent widget |
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QWidget *viewport() 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 = false; |
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bool _mouseOver = false; |
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qreal _opacity = -1; |
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AnimationMode _mode = AnimationNone; |
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//@} |
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}; |
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} |
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#endif
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