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156 lines
3.2 KiB
156 lines
3.2 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 <QPaintEvent> |
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#include <QPointer> |
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#include <QWidget> |
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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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{ |
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_widget = value; |
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} |
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//* associated window |
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QWidget *widget() const |
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{ |
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return _widget; |
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} |
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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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{ |
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_shadowHelper = shadowHelper; |
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} |
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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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{ |
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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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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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} |
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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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if (!windowShadow->isVisible()) |
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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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} |
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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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} |
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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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