134 lines
3.8 KiB
C++
134 lines
3.8 KiB
C++
/******************************************************************************
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* QSkinny - Copyright (C) 2016 Uwe Rathmann
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* This file may be used under the terms of the QSkinny License, Version 1.0
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*****************************************************************************/
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#include "QskGraphicLabelSkinlet.h"
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#include "QskGraphicLabel.h"
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#include "QskAspect.h"
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#include "QskColorFilter.h"
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#include "QskFunctions.h"
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#include "QskGraphic.h"
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#include "QskTextureNode.h"
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QskGraphicLabelSkinlet::QskGraphicLabelSkinlet( QskSkin* skin )
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: Inherited( skin )
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{
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setNodeRoles( { GraphicRole } );
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}
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QskGraphicLabelSkinlet::~QskGraphicLabelSkinlet() = default;
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QRectF QskGraphicLabelSkinlet::subControlRect( const QskSkinnable* skinnable,
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const QRectF& contentsRect, QskAspect::Subcontrol subControl ) const
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{
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const auto label = static_cast< const QskGraphicLabel* >( skinnable );
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if ( subControl == QskGraphicLabel::Graphic )
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{
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return graphicRect( label, contentsRect );
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}
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return Inherited::subControlRect( skinnable, contentsRect, subControl );
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}
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QSGNode* QskGraphicLabelSkinlet::updateSubNode(
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const QskSkinnable* skinnable, quint8 nodeRole, QSGNode* node ) const
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{
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const auto label = static_cast< const QskGraphicLabel* >( skinnable );
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switch ( nodeRole )
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{
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case GraphicRole:
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{
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return updateGraphicNode( label, node );
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}
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}
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return Inherited::updateSubNode( skinnable, nodeRole, node );
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}
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QRect QskGraphicLabelSkinlet::graphicRect(
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const QskGraphicLabel* label, const QRectF& contentsRect ) const
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{
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// textures are in integers, to avoid useless recalculations
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// that finally will be rounded anyway, we calculate in integers
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const auto fillMode = label->fillMode();
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const QRect graphicRect = contentsRect.toAlignedRect();
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if ( fillMode == QskGraphicLabel::Stretch )
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{
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return graphicRect;
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}
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QSizeF sz = label->effectiveSourceSize();
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if ( fillMode == QskGraphicLabel::PreserveAspectFit )
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{
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sz.scale( graphicRect.size(), Qt::KeepAspectRatio );
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}
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else if ( fillMode == QskGraphicLabel::PreserveAspectCrop )
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{
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sz.scale( graphicRect.size(), Qt::KeepAspectRatioByExpanding );
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}
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return qskAlignedRect( graphicRect,
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( int ) sz.width(), ( int ) sz.height(), label->alignment() );
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}
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QSGNode* QskGraphicLabelSkinlet::updateGraphicNode(
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const QskGraphicLabel* label, QSGNode* node ) const
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{
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const auto colorFilter = label->graphicFilter();
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const auto rect = label->subControlRect( QskGraphicLabel::Graphic );
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Qt::Orientations mirrored;
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if ( label->mirror() )
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mirrored = Qt::Horizontal;
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if ( label->fillMode() == QskGraphicLabel::Stretch )
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{
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node = QskSkinlet::updateGraphicNode( label, node,
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label->graphic(), colorFilter, rect, mirrored );
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}
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else
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{
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node = QskSkinlet::updateGraphicNode( label, node,
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label->graphic(), colorFilter, rect, Qt::AlignCenter, mirrored );
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}
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return node;
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}
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QSizeF QskGraphicLabelSkinlet::sizeHint( const QskSkinnable* skinnable,
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Qt::SizeHint which, const QSizeF& constraint ) const
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{
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if ( which != Qt::PreferredSize )
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return QSizeF();
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const auto label = static_cast< const QskGraphicLabel* >( skinnable );
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auto sz = label->effectiveSourceSize();
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if ( !sz.isEmpty() )
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{
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if ( constraint.width() >= 0.0 )
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{
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sz.setHeight( sz.height() * constraint.width() / sz.width() );
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sz.setWidth( -1.0 );
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}
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else if ( constraint.height() >= 0.0 )
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{
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sz.setWidth( sz.width() * constraint.height() / sz.height() );
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sz.setHeight( -1.0 );
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}
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}
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return sz;
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}
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#include "moc_QskGraphicLabelSkinlet.cpp"
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