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154 lines
3.1 KiB
C++
154 lines
3.1 KiB
C++
/*
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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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#pragma once
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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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}
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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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