107 lines
2.9 KiB
C++
107 lines
2.9 KiB
C++
/******************************************************************************
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* QSkinny - Copyright (C) 2016 Uwe Rathmann
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* SPDX-License-Identifier: BSD-3-Clause
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*****************************************************************************/
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#include "Overlay.h"
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#include "BlurringNode.h"
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#include <QskSkinlet.h>
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#include <QskSceneTexture.h>
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#include <QskQuick.h>
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#include <QskBoxShapeMetrics.h>
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#include <QskBoxBorderMetrics.h>
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#include <QskBoxBorderColors.h>
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#include <QskGradient.h>
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namespace
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{
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class Skinlet : public QskSkinlet
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{
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using Inherited = QskSkinlet;
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public:
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enum NodeRole { EffectRole, BorderRole };
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Skinlet()
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{
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setNodeRoles( { EffectRole, BorderRole } );
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}
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QSGNode* updateSubNode(
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const QskSkinnable* skinnable, quint8 nodeRole, QSGNode* node ) const
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{
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const auto overlay = static_cast< const Overlay* >( skinnable );
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switch ( nodeRole )
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{
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case EffectRole:
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return updateEffectNode( overlay, node );
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case BorderRole:
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return updateBoxNode( overlay, node, overlay->contentsRect(),
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QskBoxShapeMetrics(), 1, Qt::darkGray, QskGradient() );
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break;
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};
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return nullptr;
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}
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private:
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QSGNode* updateEffectNode( const Overlay* overlay, QSGNode* node ) const
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{
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const auto window = overlay->window();
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if ( overlay->size().isEmpty() )
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return nullptr;
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auto rootNode = qskScenegraphAnchorNode( window );
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if ( rootNode == nullptr )
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return nullptr;
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auto effectNode = static_cast< BlurringNode* >( node );
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if ( effectNode == nullptr )
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{
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auto texture = new QskSceneTexture( window );
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QObject::connect( texture, &QskSceneTexture::updateRequested,
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overlay, &QQuickItem::update );
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effectNode = new BlurringNode();
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effectNode->setTexture( texture );
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}
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auto texture = qobject_cast< QskSceneTexture* >( effectNode->texture() );
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Q_ASSERT( texture );
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texture->setFiltering( overlay->smooth() ? QSGTexture::Linear : QSGTexture::Nearest );
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auto finalNode = const_cast< QSGTransformNode* >( qskItemNode( overlay ) );
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texture->render( rootNode, finalNode, overlay->geometry() );
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effectNode->setRect( overlay->rect() );
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return effectNode;
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}
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};
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}
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Overlay::Overlay( QQuickItem* parent )
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: Inherited( parent )
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{
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setSkinlet( new Skinlet() );
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}
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Overlay::~Overlay()
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{
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}
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void Overlay::geometryChange(
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const QRectF& newGeometry, const QRectF& oldGeometry )
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{
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Inherited::geometryChange( newGeometry, oldGeometry );
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update();
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}
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#include "moc_Overlay.cpp"
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