qskinny/designsystems/material3/QskMaterial3SliderSkinlet.cpp
2024-11-21 17:59:54 +01:00

158 lines
4.4 KiB
C++

/******************************************************************************
* QSkinny - Copyright (C) The authors
* SPDX-License-Identifier: BSD-3-Clause
*****************************************************************************/
#include "QskMaterial3SliderSkinlet.h"
#include <QskSlider.h>
#include <QskClipNode.h>
#include <QskSGNode.h>
#include <qmath.h>
// the color of stop indicators is different, when being on top of the filling
QSK_SYSTEM_STATE( QskMaterial3SliderSkinlet, Filled, QskAspect::FirstUserState >> 1 )
using Q = QskSlider;
static inline bool qskHasBoundaryTicks( const QskSlider* slider )
{
return ( slider->graduationPolicy() == Qsk::Maybe ) && !slider->isSnapping();
}
QskMaterial3SliderSkinlet::QskMaterial3SliderSkinlet( QskSkin* skin )
: Inherited( skin )
{
}
QRectF QskMaterial3SliderSkinlet::subControlRect( const QskSkinnable* skinnable,
const QRectF& contentsRect, QskAspect::Subcontrol subControl ) const
{
if ( subControl == Q::Scale )
{
auto r = Inherited::subControlRect( skinnable, contentsRect, Q::Scale );
const auto handleSize = skinnable->strutSizeHint( Q::Handle );
const auto slider = static_cast< const QskSlider* >( skinnable );
if( slider->orientation() == Qt::Horizontal )
{
const auto m = 0.5 * handleSize.width();
r.adjust( m, 0.0, -m, 0.0 );
}
{
const auto m = 0.5 * handleSize.height();
r.adjust( 0.0, m, 0.0, -m );
}
return r;
}
return Inherited::subControlRect( skinnable, contentsRect, subControl );
}
QSGNode* QskMaterial3SliderSkinlet::updateSubNode(
const QskSkinnable* skinnable, quint8 nodeRole, QSGNode* node ) const
{
switch( nodeRole )
{
case GrooveRole:
case FillRole:
{
auto clippedNode = QskSGNode::findChildNode( node, nodeRole );
clippedNode = Inherited::updateSubNode( skinnable, nodeRole, clippedNode );
if ( clippedNode )
{
const auto slider = static_cast< const QskSlider* >( skinnable );
auto clipNode = QskSGNode::ensureNode< QskClipNode >( node );
clipNode->setRegion( slider->subControlRect( Q::Panel ),
slider->subControlRect( Q::Handle ) );
QskSGNode::setNodeRole( clippedNode, nodeRole );
QskSGNode::setParentNode( clippedNode, clipNode );
return clipNode;
}
return nullptr;
}
}
return Inherited::updateSubNode( skinnable, nodeRole, node );
}
int QskMaterial3SliderSkinlet::sampleCount( const QskSkinnable* skinnable,
QskAspect::Subcontrol subControl ) const
{
if ( subControl == Q::Tick )
{
const auto slider = static_cast< const QskSlider* >( skinnable );
if ( qskHasBoundaryTicks( slider ) )
{
const bool hasOrigin = false;
// min/origin/max or max
return hasOrigin ? 3 : 1;
}
}
return Inherited::sampleCount( skinnable, subControl );
}
QVariant QskMaterial3SliderSkinlet::sampleAt( const QskSkinnable* skinnable,
QskAspect::Subcontrol subControl, int index ) const
{
if ( subControl == Q::Tick )
{
const auto slider = static_cast< const QskSlider* >( skinnable );
if ( qskHasBoundaryTicks( slider ) )
{
switch( index )
{
case 1:
return slider->minimum();
#if 0
case 2:
return slider->origin();
#endif
default:
return slider->maximum();
}
return QVariant();
}
}
return Inherited::sampleAt( skinnable, subControl, index );
}
QskAspect::States QskMaterial3SliderSkinlet::sampleStates(
const QskSkinnable* skinnable, QskAspect::Subcontrol subControl, int index ) const
{
auto states = Inherited::sampleStates( skinnable, subControl, index );
if ( subControl == Q::Tick )
{
const auto tickValue = sampleAt( skinnable, subControl, index );
if ( tickValue.canConvert< qreal >() )
{
const auto slider = static_cast< const QskSlider* >( skinnable );
if ( tickValue.value< qreal >() <= slider->value() )
states |= QskMaterial3SliderSkinlet::Filled;
}
}
return states;
}
#include "moc_QskMaterial3SliderSkinlet.cpp"