Merge branch 'master' into features/modelobjectbinder

errors because of not knowing PrivateData otherwise

.github/workflows/cmake.yml

@@ -202,6 +202,7 @@ jobs:
           install-deps: "true"
           modules: "qtwebengine"
           cached: ${{ steps.cache-qt-5-15.outputs.cache-hit }}
+          setup-python: "false"
           tools: ""
           set-env: "true"
           tools-only: "false"
@@ -215,6 +216,7 @@ jobs:
           install-deps: "true"
           modules: "qtwebengine qtshadertools"
           cached: ${{ steps.cache-qt-6-2.outputs.cache-hit }}
+          setup-python: "false"
           tools: ""
           set-env: "true"
           tools-only: "false"

cmake/QskBuildFunctions.cmake

@@ -149,7 +149,7 @@ function(qsk_add_example target)
 
 endfunction()
 
-function(qsk_add_shaders target shader_name)
+function(qsk_add_shaders target)
 
     cmake_parse_arguments( arg "" "" "FILES" ${ARGN} )
 
@@ -160,7 +160,7 @@ function(qsk_add_shaders target shader_name)
         list(APPEND outfiles "${qsbname}.qsb")
     endforeach()
 
-    qt6_add_shaders( ${target} ${shader_name} BATCHABLE PRECOMPILE QUIET
+    qt6_add_shaders( ${target} "qskshaders" BATCHABLE PRECOMPILE QUIET
         PREFIX "/qskinny/shaders" ${ARGV} OUTPUTS ${outfiles} )
 
     # pass on OUTPUT_TARGETS to the caller of this function

designsystems/material3/QskMaterial3ProgressBarSkinlet.cpp

@@ -5,7 +5,9 @@
 
 #include "QskMaterial3ProgressBarSkinlet.h"
 #include <QskProgressBar.h>
-#include <QskBoxHints.h>
+#include <QskBoxShapeMetrics.h>
+#include <QskBoxBorderMetrics.h>
+#include <QskBoxBorderColors.h>
 #include <QskMargins.h>
 #include <QskClipNode.h>
 #include <QskSGNode.h>
@@ -63,11 +65,11 @@ QSGNode* QskMaterial3ProgressBarSkinlet::updateStopIndicatorNode(
     else         
         rect.setBottom( rect.top() + rect.width() );
 
-    QskBoxHints hints;
-    hints.shape = progressBar->boxShapeHint( Q::Fill );
-    hints.gradient = progressBar->gradientHint( Q::Fill ).endColor();
+    const auto color = progressBar->gradientHint( Q::Fill ).endColor();
+    const auto shape = progressBar->boxShapeHint( Q::Fill );
 
-    return updateBoxNode( progressBar, node, rect, hints );
+    return updateBoxNode( progressBar, node, rect, shape,
+        QskBoxBorderMetrics(), QskBoxBorderColors(), color );
 }
 
 QSGNode* QskMaterial3ProgressBarSkinlet::updateGrooveClipNode(

examples/iotdashboard/StorageBarSkinlet.cpp

@@ -14,8 +14,8 @@ StorageBarSkinlet::StorageBarSkinlet( QskSkin* skin )
     setNodeRoles( { Pictures, Music, Videos, Documents, Others, Free } );
 }
 
-QRectF StorageBarSkinlet::subControlRect( const QskSkinnable* skinnable,
-    const QRectF& contentsRect, QskAspect::Subcontrol subControl ) const
+QRectF StorageBarSkinlet::subControlRect( const QskSkinnable* skinnable, const QRectF& contentsRect,
+    QskAspect::Subcontrol subControl ) const
 {
     const auto* const bar = static_cast< const S* >( skinnable );
 
@@ -70,29 +70,35 @@ QRectF StorageBarSkinlet::subControlRect( const QskSkinnable* skinnable,
     return Inherited::subControlRect( skinnable, contentsRect, subControl );
 }
 
+namespace
+{
+    inline QSGNode* updateSegmentBoxNode(
+        const S* const skinnable, const QskAspect::Subcontrol& subcontrol, QSGNode* const node )
+    {
+        return QskSkinlet::updateBoxNode( skinnable, node, skinnable->subControlRect( subcontrol ),
+            skinnable->gradientHint( subcontrol ), subcontrol );
+    }
+}
+
 QSGNode* StorageBarSkinlet::updateSubNode(
     const QskSkinnable* const skinnable, const quint8 nodeRole, QSGNode* const node ) const
 {
+    const auto* const bar = static_cast< const S* >( skinnable );
+
     switch ( nodeRole )
     {
         case Pictures:
-            return updateBoxNode( skinnable, node, S::Pictures );
-
+            return updateSegmentBoxNode( bar, S::Pictures, node );
         case Music:
-            return updateBoxNode( skinnable, node, S::Music );
-
+            return updateSegmentBoxNode( bar, S::Music, node );
         case Videos:
-            return updateBoxNode( skinnable, node, S::Videos );
-
+            return updateSegmentBoxNode( bar, S::Videos, node );
         case Documents:
-            return updateBoxNode( skinnable, node, S::Documents );
-
+            return updateSegmentBoxNode( bar, S::Documents, node );
         case Others:
-            return updateBoxNode( skinnable, node, S::Others );
-
+            return updateSegmentBoxNode( bar, S::Others, node );
         case Free:
-            return updateBoxNode( skinnable, node, S::Free );
-
+            return updateSegmentBoxNode( bar, S::Free, node );
         default:
             return Inherited::updateSubNode( skinnable, nodeRole, node );
     }

playground/CMakeLists.txt

@@ -9,6 +9,7 @@ add_subdirectory(shadows)
 add_subdirectory(shapes)
 add_subdirectory(charts)
 add_subdirectory(plots)
+add_subdirectory(models)
 
 if (BUILD_INPUTCONTEXT)
     add_subdirectory(inputpanel)

playground/models/CMakeLists.txt

@@ -0,0 +1,7 @@
+############################################################################
+# QSkinny - Copyright (C) The authors
+#           SPDX-License-Identifier: BSD-3-Clause
+############################################################################
+
+qsk_add_example(models MainView.h MainView.cpp main.cpp)
+target_link_libraries(models)

playground/models/MainView.cpp

@@ -0,0 +1,215 @@
+/******************************************************************************
+ * QSkinny - Copyright (C) The authors
+ *           SPDX-License-Identifier: BSD-3-Clause
+ *****************************************************************************/
+
+#include "MainView.h"
+
+#include <QskLinearBox.h>
+#include <QskPushButton.h>
+#include <QskTextLabel.h>
+#include <QskTextField.h>
+#include <QskSpinBox.h>
+#include <QskSeparator.h>
+#include <QskFontRole.h>
+#include <QskModelObjectBinder.h>
+
+#include <QStandardItemModel>
+
+namespace
+{
+    class TitleLabel : public QskTextLabel
+    {
+      public:
+        TitleLabel( const QString& text, QQuickItem* parent = nullptr )
+            : QskTextLabel( text, parent )
+        {
+            setFontRole( QskFontRole::Title );
+        }
+    };
+
+    class SpinBox : public QskSpinBox
+    {
+      public:
+        SpinBox( QQuickItem* parent = nullptr )
+            : QskSpinBox( -100.0, 100.0, 1.0, parent )
+        {
+            initSizePolicy( QskSizePolicy::Fixed, QskSizePolicy::Fixed );
+        }
+    };
+
+    class Header : public QskLinearBox
+    {
+        Q_OBJECT
+
+      public:
+        Header( QQuickItem* parent = nullptr )
+            : QskLinearBox( Qt::Horizontal, parent )
+        {
+            initSizePolicy( QskSizePolicy::Ignored, QskSizePolicy::Fixed );
+
+            setPaddingHint( QskBox::Panel, 5 );
+
+            setPanel( true );
+
+            auto rowButton = new QskPushButton( "Toggle Row" );
+            auto submitButton = new QskPushButton( "Submit Changes" );
+
+            connect( rowButton, &QskPushButton::clicked,
+                this, &Header::rowClicked );
+
+            connect( submitButton, &QskPushButton::clicked,
+                this, &Header::submitClicked );
+
+            addItem( rowButton );
+            addItem( submitButton );
+            addStretch( 1 );
+        }
+
+      Q_SIGNALS:
+        void rowClicked();
+        void submitClicked();
+    };
+
+    class Model : public QStandardItemModel
+    {
+      public:
+        Model( QObject* parent = nullptr )
+            : QStandardItemModel( 2, 2, parent )
+        {
+            initValue( 0, 0, 1.0 );
+            initValue( 0, 1, "HELLO" );
+
+            initValue( 1, 0, 2.0 );
+            initValue( 1, 1, "WORLD" );
+        }
+
+      private:
+        void initValue( int row, int col, const QVariant& value )
+        {
+            setData( index( row, col ), value, Qt::EditRole );
+        }
+    };
+
+    class DisplayBox : public QskLinearBox
+    {
+      public:
+        DisplayBox( QQuickItem* parent = nullptr )
+            : QskLinearBox( Qt::Horizontal, parent )
+        {
+            setMargins( 10, 0, 10, 0 );
+            initSizePolicy( QskSizePolicy::MinimumExpanding, QskSizePolicy::Fixed );
+
+            addItem( new SpinBox() );
+            addItem( new QskTextField() );
+        }
+    };
+
+    class ModelBox : public QskLinearBox
+    {
+      public:
+        ModelBox( QAbstractItemModel* model )
+            : QskLinearBox( Qt::Horizontal, model->columnCount() )
+            , m_model( model )
+        {
+            setMargins( 10, 0, 10, 0 );
+            setExtraSpacingAt( Qt::BottomEdge );
+
+            for ( int row = 0; row < model->rowCount(); row++ )
+            {
+                for ( int col = 0; col < model->columnCount(); col++ )
+                {
+                    const auto value = model->data(
+                        model->index( row, col ), Qt::EditRole );
+
+                    if ( value.userType() == QVariant::Double )
+                    {
+                        auto spinBox = new SpinBox( this );
+                        connect( spinBox, &QskSpinBox::valueChanged,
+                            this, &ModelBox::updateModel );
+                    }
+                    else
+                    {
+                        auto textField = new QskTextField( this );
+                        connect( textField, &QskTextField::textChanged,
+                            this, &ModelBox::updateModel );
+                    }
+                }
+            }
+
+            updateDisplay();
+
+            connect( m_model, &Model::dataChanged, this, &ModelBox::updateDisplay );
+        }
+
+      private:
+        void updateModel()
+        {
+            if ( auto item = qobject_cast< const QQuickItem* >( sender() ) )
+            {
+                const int index = indexOf( item );
+
+                const auto modelIndex = m_model->index(
+                    index / dimension(), index % dimension() );
+
+                const auto property = item->metaObject()->userProperty();
+                m_model->setData( modelIndex, property.read( item ), Qt::EditRole );
+            }
+        }
+
+        void updateDisplay() const
+        {
+            for ( int row = 0; row < m_model->rowCount(); row++ )
+            {
+                for ( int col = 0; col < m_model->columnCount(); col++ )
+                {
+                    const auto index = m_model->index( row, col );
+
+                    if ( auto item = itemAtIndex( row * dimension() + col ) )
+                    {
+                        const auto property = item->metaObject()->userProperty();
+                        property.write( item, m_model->data( index, Qt::EditRole ) );
+                    }
+                }
+            }
+        }
+
+        QPointer< QAbstractItemModel > m_model;
+    };
+}
+
+MainView::MainView( QQuickItem* parent )
+    : QskMainView( parent )
+{
+    m_binder = new QskModelObjectBinder( new Model( this ), this );
+
+    auto header = new Header();
+
+    auto displayBox = new DisplayBox();
+    for ( int i = 0; i < displayBox->elementCount(); i++ )
+        m_binder->bindObject( displayBox->itemAtIndex( i ), i );
+
+    auto box = new QskLinearBox( Qt::Vertical );
+
+    box->addItem( new TitleLabel( "Editor:" ) );
+    box->addItem( displayBox );
+    box->addItem( new QskSeparator() );
+    box->addItem( new TitleLabel( "Model:" ) );
+    box->addItem( new ModelBox( m_binder->model() ) );
+
+    setHeader( header );
+    setBody( box );
+
+    connect( header, &Header::rowClicked,
+        this, &MainView::toogleRow );
+
+    connect( header, &Header::submitClicked,
+        m_binder, &QskModelObjectBinder::submit );
+}
+
+void MainView::toogleRow()
+{
+    m_binder->setCurrentRow( m_binder->currentRow() == 0 ? 1 : 0 );
+}
+
+#include "MainView.moc"

playground/models/MainView.h

@@ -0,0 +1,21 @@
+/******************************************************************************
+ * QSkinny - Copyright (C) The authors
+ *           SPDX-License-Identifier: BSD-3-Clause
+ *****************************************************************************/
+
+#pragma once
+
+#include <QskMainView.h>
+
+class QskModelObjectBinder;
+
+class MainView : public QskMainView
+{
+  public:
+    MainView( QQuickItem* = nullptr );
+
+  private:
+    void toogleRow();
+
+    QskModelObjectBinder* m_binder;
+};

playground/models/main.cpp

@@ -0,0 +1,37 @@
+/******************************************************************************
+ * QSkinny - Copyright (C) The authors
+ *           SPDX-License-Identifier: BSD-3-Clause
+ *****************************************************************************/
+
+#include "MainView.h"
+
+#include <SkinnyShortcut.h>
+
+#include <QskObjectCounter.h>
+#include <QskFocusIndicator.h>
+#include <QskWindow.h>
+
+#include <QGuiApplication>
+
+int main( int argc, char* argv[] )
+{
+#ifdef ITEM_STATISTICS
+    QskObjectCounter counter( true );
+#endif
+
+    QGuiApplication app( argc, argv );
+
+    SkinnyShortcut::enable( SkinnyShortcut::AllShortcuts );
+
+    QskWindow window;
+    window.resize( 600, 400 );
+
+    auto focusIndicator = new QskFocusIndicator();
+    focusIndicator->setObjectName( "FocusIndicator" );
+
+    window.addItem( focusIndicator );
+    window.addItem( new MainView() );
+    window.show();
+
+    return app.exec();
+}

playground/plots/PlotCursorSkinlet.cpp

@@ -9,7 +9,6 @@
 #include <QskSGNode.h>
 #include <QskTextOptions.h>
 #include <QskTextColors.h>
-#include <QskBoxHints.h>
 
 #include <QskPlotCurve.h>
 #include <QskPlotCorridor.h>
@@ -144,10 +143,8 @@ QSGNode* PlotCursorSkinlet::updateSampleNode( const QskSkinnable* skinnable,
 
     if ( subControl == Q::LabelPanel )
     {
-        auto hints = skinnable->boxHints( subControl );
-        hints.gradient = skinnable->gradientHint( aspect );
-
-        return updateBoxNode( skinnable, node, rect, hints );
+        const auto gradient = skinnable->gradientHint( aspect );
+        return updateBoxNode( skinnable, node, rect, gradient, subControl );
     }
 
     if ( subControl == Q::LabelText )

playground/shadows/CMakeLists.txt

@@ -35,6 +35,6 @@ if (QT_VERSION_MAJOR VERSION_GREATER_EQUAL 6)
         shaders/arcshadow-vulkan.vert
         shaders/arcshadow-vulkan.frag
     )
-    qsk_add_shaders( ${target} "qskArcShaders" FILES ${SHADERS} OUTPUT_TARGETS shader_target)
+    qsk_add_shaders( ${target} FILES ${SHADERS} OUTPUT_TARGETS shader_target)
 endif()
 

playground/shadows/ShadowedArc.cpp

@@ -8,7 +8,7 @@
 
 #include <QskSkinlet.h>
 #include <QskArcNode.h>
-#include <QskArcHints.h>
+#include <QskArcMetrics.h>
 #include <QskShadowMetrics.h>
 #include <QskSGNode.h>
 #include <QskRgbValue.h>
@@ -107,7 +107,14 @@ namespace
             return nullptr;
 
         auto arcNode = QskSGNode::ensureNode< QskArcNode >( node );
-        arcNode->setArcData( rect, arc->arcHints( Q::Arc ) );
+
+        const auto metrics = arc->arcMetricsHint( Q::Arc );
+        const auto fillGradient = arc->gradientHint( Q::Arc );
+
+        const auto borderColor = arc->color( Q::Arc | QskAspect::Border );
+        const auto borderWidth = arc->metric( Q::Arc | QskAspect::Border );
+
+        arcNode->setArcData( rect, metrics, borderWidth, borderColor, fillGradient );
 
         return arcNode;
     }

playground/shadows/Slider.cpp

@@ -21,7 +21,6 @@ Slider::Slider( const QString& text, qreal min, qreal max,
     m_slider->setBoundaries( min, max );
     m_slider->setStepSize( step );
     m_slider->setSnapping( true );
-    m_slider->setTickPolicy( Qsk::Never ); // too many steps
     m_slider->setValue( value );
 
     m_valueLabel = new QskTextLabel( this );

src/CMakeLists.txt

@@ -5,7 +5,6 @@
 
 list(APPEND HEADERS
     common/QskArcMetrics.h
-    common/QskArcHints.h
     common/QskAspect.h
     common/QskBoxBorderColors.h
     common/QskBoxBorderMetrics.h
@@ -42,7 +41,6 @@ list(APPEND HEADERS
 
 list(APPEND SOURCES
     common/QskArcMetrics.cpp
-    common/QskArcHints.cpp
     common/QskAspect.cpp
     common/QskBoxBorderColors.cpp
     common/QskBoxBorderMetrics.cpp
@@ -235,6 +233,7 @@ list(APPEND HEADERS
     controls/QskListViewSkinlet.h
     controls/QskMenu.h
     controls/QskMenuSkinlet.h
+    controls/QskModelObjectBinder.h
     controls/QskObjectTree.h
     controls/QskPageIndicator.h
     controls/QskPageIndicatorSkinlet.h
@@ -347,6 +346,7 @@ list(APPEND SOURCES
     controls/QskListViewSkinlet.cpp
     controls/QskMenuSkinlet.cpp
     controls/QskMenu.cpp
+    controls/QskModelObjectBinder.cpp
     controls/QskObjectTree.cpp
     controls/QskPageIndicator.cpp
     controls/QskPageIndicatorSkinlet.cpp
@@ -510,7 +510,7 @@ else()
 endif()
 
 if (QT_VERSION_MAJOR VERSION_GREATER_EQUAL 6)
-    qsk_add_shaders( ${target} "qskshaders" FILES ${SHADERS} OUTPUT_TARGETS shader_target)
+    qsk_add_shaders( ${target} FILES ${SHADERS} OUTPUT_TARGETS shader_target)
 endif()
 
 target_include_directories(${target} PUBLIC

src/common/QskArcHints.cpp

@@ -1,69 +0,0 @@
-/******************************************************************************
- * QSkinny - Copyright (C) The authors
- *           SPDX-License-Identifier: BSD-3-Clause
- *****************************************************************************/
-
-#include "QskArcHints.h"
-#include "QskRgbValue.h"
-
-static inline qreal qskInterpolated( qreal from, qreal to, qreal ratio )
-{
-    return from + ( to - from ) * ratio;
-}
-
-QskArcHints::QskArcHints()
-{
-}
-
-QskArcHints::QskArcHints( const QskArcMetrics& metrics, qreal borderWidth,
-        const QColor& borderColor, const QskGradient& gradient )
-    : metrics( metrics )
-    , borderWidth( borderWidth )
-    , borderColor( borderColor )
-    , gradient( gradient )
-{
-}
-
-bool QskArcHints::isVisible() const
-{
-    if ( metrics.isNull() ) 
-        return false;
-                
-    if ( borderWidth > 0.0 && borderColor.isValid() && borderColor.alpha() > 0 )
-        return true;
-                
-    return gradient.isVisible();
-}
-
-QskArcHints QskArcHints::toAbsolute( const QSizeF& size ) const noexcept
-{
-    return QskArcHints( metrics.toAbsolute( size ),
-        borderWidth, borderColor, gradient );
-}
-
-QskArcHints QskArcHints::interpolated(
-    const QskArcHints& to, qreal value ) const noexcept
-{
-    return QskArcHints(
-        metrics.interpolated( to.metrics, value ),
-        qskInterpolated( borderWidth, to.borderWidth, value ),
-        QskRgb::interpolated( borderColor, to.borderColor, value ),
-        gradient.interpolated( to.gradient, value )
-    );
-}
-
-#ifndef QT_NO_DEBUG_STREAM
-
-#include <qdebug.h>
-
-QDebug operator<<( QDebug debug, const QskArcHints& hints )
-{
-    debug << hints.metrics << hints.borderWidth
-        << hints.borderColor << hints.gradient;
-
-    return debug;
-}
-
-#endif
-
-#include "moc_QskArcHints.cpp"

src/common/QskArcHints.h

@@ -1,47 +0,0 @@
-/******************************************************************************
- * QSkinny - Copyright (C) The authors
- *           SPDX-License-Identifier: BSD-3-Clause
- *****************************************************************************/
-
-#ifndef QSK_ARC_HINTS_H
-#define QSK_ARC_HINTS_H
-
-#include "QskArcMetrics.h"
-#include "QskGradient.h"
-#include <qcolor.h>
-
-class QSK_EXPORT QskArcHints
-{
-    Q_GADGET
-
-    Q_PROPERTY( QskArcMetrics metrics MEMBER metrics )
-    Q_PROPERTY( qreal borderWidth MEMBER borderWidth )
-    Q_PROPERTY( QColor borderColor MEMBER borderColor )
-
-  public:
-    QskArcHints();
-    QskArcHints( const QskArcMetrics&, qreal borderWidth,
-        const QColor& borderColor, const QskGradient& );
-
-    QskArcHints toAbsolute( const QSizeF& ) const noexcept;
-
-    QskArcHints interpolated(
-        const QskArcHints&, qreal value ) const noexcept;
-
-    bool isVisible() const;
-
-    QskArcMetrics metrics;
-    qreal borderWidth = 0.0;
-
-    QColor borderColor;
-    QskGradient gradient;
-};
-
-#ifndef QT_NO_DEBUG_STREAM
-
-class QDebug;
-QSK_EXPORT QDebug operator<<( QDebug, const QskArcHints& );
-
-#endif
-
-#endif

src/common/QskGradient.cpp

@@ -81,7 +81,7 @@ QskGradient::QskGradient( const QColor& color1, const QColor& color2 )
 QskGradient::QskGradient( QGradient::Preset preset )
     : QskGradient()
 {
-    setStops( qskFromQGradientStops( QGradient( preset ).stops() ) );
+    setStops( qskBuildGradientStops( QGradient( preset ).stops() ) );
 }
 
 QskGradient::QskGradient( const QVector< QskGradientStop >& stops )
@@ -165,7 +165,7 @@ QskGradient::QskGradient( const QGradient& qGradient )
         }
     }
 
-    setStops( qskFromQGradientStops( qGradient.stops() ) );
+    setStops( qskBuildGradientStops( qGradient.stops() ) );
 }
 
 QskGradient::QskGradient( const QskGradient& other ) noexcept
@@ -305,7 +305,7 @@ void QskGradient::setStops( const QColor& color1, const QColor& color2 )
 
 void QskGradient::setStops( QGradient::Preset preset )
 {
-    const auto stops = qskFromQGradientStops( QGradient( preset ).stops() );
+    const auto stops = qskBuildGradientStops( QGradient( preset ).stops() );
     setStops( stops );
 }
 

src/common/QskGradientStop.cpp

@@ -23,31 +23,6 @@ static void qskRegisterGradientStop()
 
 Q_CONSTRUCTOR_FUNCTION( qskRegisterGradientStop )
 
-static inline qreal qskBoundedStopPos( qreal pos )
-{
-    if ( ( pos < 0.0 ) || qFuzzyIsNull( pos ) )
-        return 0.0;
-
-    if ( ( pos > 1.0 ) || qFuzzyCompare( pos, 1.0 ) )
-        return 1.0;
-
-    return pos;
-}
-
-static inline QVector< QskGradientStop >
-qskNormalizedStops( const QVector< QskGradientStop >& stops )
-{
-    auto s = stops;
-
-    if ( s.first().position() > 0.0 )
-        s.prepend( QskGradientStop( 0.0, s.first().color() ) );
-
-    if ( s.last().position() < 1.0 )
-        s.append( QskGradientStop( 1.0, s.last().color() ) );
-
-    return s;
-}
-
 void QskGradientStop::setPosition( qreal position ) noexcept
 {
     m_position = position;
@@ -81,19 +56,26 @@ QskHashValue QskGradientStop::hash( QskHashValue seed ) const noexcept
     return qHashBits( &m_color, sizeof( m_color ), hash );
 }
 
-QskGradientStop QskGradientStop::interpolated(
-    const QskGradientStop& to, qreal ratio ) const
+QColor QskGradientStop::interpolated(
+    const QskGradientStop& s1, const QskGradientStop& s2, qreal position ) noexcept
 {
-    return QskGradientStop(
-        m_position + ( to.m_position - m_position ) * ratio,
-        QskRgb::interpolated( m_color, to.m_color, ratio )
-    );
-}
+    if ( s1.color() == s2.color() )
+        return s1.color();
 
-QVariant QskGradientStop::interpolate(
-    const QskGradientStop& from, const QskGradientStop& to, qreal ratio )
-{
-    return QVariant::fromValue( from.interpolated( to, ratio ) );
+    auto min = &s1;
+    auto max = &s2;
+
+    if ( min->position() > max->position() )
+        std::swap( min, max );
+
+    if ( position <= min->position() )
+        return min->color();
+
+    if ( position >= max->position() )
+        return max->color();
+
+    const qreal r = ( position - min->position() ) / ( max->position() - min->position() );
+    return QskRgb::interpolated( min->color(), max->color(), r );
 }
 
 #ifndef QT_NO_DEBUG_STREAM
@@ -113,23 +95,19 @@ QDebug operator<<( QDebug debug, const QskGradientStop& stop )
 
 #endif
 
+#include "moc_QskGradientStop.cpp"
+
 // some helper functions around QskGradientStops
 
-static inline QColor qskColorAtPosition(
-    const QskGradientStop& s1, const QskGradientStop& s2, qreal pos )
+static inline QColor qskInterpolatedColor(
+    const QskGradientStops& stops, int index1, int index2, qreal position )
 {
-    const auto dp = s2.position() - s1.position();
-    if ( qFuzzyIsNull( dp ) )
-        return s1.color();
+    const auto max = static_cast< int >( stops.count() ) - 1;
 
-    return QskRgb::interpolated(
-        s1.color(), s2.color(), ( pos - s1.position() ) / dp );
-}
+    index1 = qBound( 0, index1, max );
+    index2 = qBound( 0, index2, max );
 
-static inline QskGradientStop qskCreateStopAtPosition(
-    const QskGradientStop& s1, const QskGradientStop& s2, qreal pos )
-{
-    return { pos, qskColorAtPosition( s1, s2, pos ) };
+    return QskGradientStop::interpolated( stops[ index1 ], stops[ index2 ], position );
 }
 
 bool qskIsVisible( const QskGradientStops& stops ) noexcept
@@ -300,126 +278,43 @@ QColor qskInterpolatedColorAt( const QskGradientStops& stops, qreal pos ) noexce
     if ( stops.isEmpty() )
         return QColor();
 
+    pos = qBound( 0.0, pos, 1.0 );
+
     if ( pos <= stops.first().position() )
         return stops.first().color();
 
     for ( int i = 1; i < stops.count(); i++ )
     {
-        if ( pos <= stops[ i ].position() )
-            return qskColorAtPosition( stops[ i - 1 ], stops[ i ], pos );
+        if ( pos <= stops[i].position() )
+            return qskInterpolatedColor( stops, i - 1, i, pos );
     }
 
     return stops.last().color();
 }
 
-QskGradientStops qskReplacedGradientStops( const QskGradientStops& gradientStops,
-    const QskGradientStop& stop1, const QskGradientStop& stop2 )
-{
-    if ( stop1.position() >= stop2.position() )
-        return gradientStops;
-
-    const auto s1 = QskGradientStop( qskBoundedStopPos( stop1.position() ), stop1.color() );
-    const auto s2 = QskGradientStop( qskBoundedStopPos( stop2.position() ), stop2.color() );
-
-    QskGradientStops stops;
-
-    if ( s1.position() == 0.0 && s2.position() == 1.0 )
-    {
-        stops = { s1, s2 };
-    }
-    else if ( qskIsMonochrome( gradientStops ) )
-    {
-        stops.reserve( 4 );
-
-        const auto c = gradientStops.isEmpty()
-            ? QColor::fromRgba( 0 ) : gradientStops.first().color();
-
-        if ( s1.position() > 0.0 )
-            stops += { s1.position(), c };
-
-        stops += s1;
-        stops += s2;
-
-        if ( s2.position() < 1.0 )
-            stops += { s2.position(), c };
-    }
-    else
-    {
-        // not the most efficient implementation - maybe later TODO ...
-        const auto stops0 = qskNormalizedStops( gradientStops );
-
-        int i = 0;
-
-        if ( s1.position() > 0.0 )
-        {
-            while ( s1.position() > stops0[i].position() )
-                stops += stops0[i++];
-
-            if ( s1.position() == stops0[i].position() )
-                stops += stops0[i++];
-            else
-                stops += qskCreateStopAtPosition( stops0[i - 1], stops0[i], s1.position() );
-        }
-
-        stops += s1;
-
-        while ( s2.position() > stops0[i].position() )
-            i++;
-
-        stops += s2;
-
-        if ( s2.position() < 1.0 )
-        {
-            while ( stops0[i + 1].position() == s2.position() )
-                i++;
-
-            if ( s2.position() != stops0[i].position() )
-                stops += qskCreateStopAtPosition( stops0[i - 1], stops0[i], s2.position() );
-
-            while( i < stops0.count() )
-                stops += stops0[i++];
-        }
-    }
-
-    return stops;
-}
-
-QskGradientStops qskClippedGradientStops(
-    const QskGradientStops& stops, qreal from, qreal to )
-{
-    return qskReplacedGradientStops( stops, { from, 0 }, { to, 0 } );
-}
-
 QskGradientStops qskExtractedGradientStops(
-    const QskGradientStops& stops, qreal from, qreal to )
+    const QskGradientStops& gradientStops, qreal from, qreal to )
 {
-    if ( ( from > to ) || ( to > 1.0 ) || ( from < 0.0 ) || stops.isEmpty() )
+    if ( ( from > to ) || ( from > 1.0 ) || gradientStops.isEmpty() )
         return QskGradientStops();
 
-    from = qskBoundedStopPos( from );
-    to = qskBoundedStopPos( to );
+    if ( ( from <= 0.0 ) && ( to >= 1.0 ) )
+        return gradientStops;
 
-    if ( ( from == 0.0 ) && ( to == 1.0 ) )
-        return stops;
+    from = qMax( from, 0.0 );
+    to = qMin( to, 1.0 );
 
-    if ( from == to )
-    {
-        const auto color = qskInterpolatedColorAt( stops, from );
+    QVector< QskGradientStop > stops1 = gradientStops;
 
-        QVector< QskGradientStop > s;
-        s.reserve( 2 );
-        s += QskGradientStop( 0.0, color );
-        s += QskGradientStop( 1.0, color );
+#if 1
+    // not the most efficient implementation - maybe later TODO ...
 
-        return s;
-    }
+    if ( stops1.first().position() > 0.0 )
+        stops1.prepend( QskGradientStop( 0.0, stops1.first().color() ) );
 
-    /*
-        For situations where we have no stops at 0.0 and 1.0 we insert them
-        manually. Not the most efficient implementation, but we avoid having
-        to deal with these situations for the moment. TODO ...
-     */
-    const auto stops1 = qskNormalizedStops( stops );
+    if ( stops1.last().position() < 1.0 )
+        stops1.append( QskGradientStop( 1.0, stops1.last().color() ) );
+#endif
 
     QVector< QskGradientStop > stops2;
     stops2.reserve( stops1.count() );
@@ -436,26 +331,26 @@ QskGradientStops qskExtractedGradientStops(
     {
         int i = 0;
 
-        if ( from == 0.0 )
+        for ( ; i < stops1.count(); i++ )
         {
-            stops2 += stops1[i++];
-        }
-        else
-        {
-            while( stops1[++i].position() <= from ); // skip leading stops
-
-            stops2 += QskGradientStop( 0.0,
-                qskColorAtPosition( stops1[i - 1], stops1[ i ], from ) );
+            if ( stops1[i].position() > from )
+                break;
         }
 
-        while ( stops1[i].position() < to )
+        stops2 += QskGradientStop( 0.0,
+            qskInterpolatedColor( stops1, i - 1, i, from ) );
+
+        for ( ; i < stops1.count(); i++ )
         {
+            if ( stops1[i].position() >= to )
+                break;
+
             const auto pos = ( stops1[i].position() - from ) / ( to - from );
-            stops2 += QskGradientStop( pos, stops1[i++].color() );
+            stops2 += QskGradientStop( pos, stops1[i].color() );
         }
 
         stops2 += QskGradientStop( 1.0,
-            qskColorAtPosition( stops1[i - 1], stops1[ i ], to ) );
+            qskInterpolatedColor( stops1, i, i + 1, to ) );
     }
 
     return stops2;
@@ -472,7 +367,7 @@ QskGradientStops qskRevertedGradientStops( const QskGradientStops& stops )
     return s;
 }
 
-QVector< QskGradientStop > qskFromQGradientStops( const QGradientStops& qtStops )
+QVector< QskGradientStop > qskBuildGradientStops( const QGradientStops& qtStops )
 {
     QVector< QskGradientStop > stops;
     stops.reserve( qtStops.count() );
@@ -568,5 +463,3 @@ QGradientStops qskToQGradientStops( const QskGradientStops& stops )
 
     return qStops;
 }
-
-#include "moc_QskGradientStop.cpp"

src/common/QskGradientStop.h

@@ -45,10 +45,8 @@ class QSK_EXPORT QskGradientStop
     void setRgb( QRgb ) noexcept;
     QRgb rgb() const noexcept;
 
-    QskGradientStop interpolated( const QskGradientStop&, qreal ) const;
-
-    static QVariant interpolate( const QskGradientStop&,
-        const QskGradientStop&, qreal );
+    static QColor interpolated(
+        const QskGradientStop&, const QskGradientStop&, qreal position ) noexcept;
 
     QskHashValue hash( QskHashValue seed ) const noexcept;
 
@@ -131,48 +129,27 @@ QSK_EXPORT QskGradientStops qskInterpolatedGradientStops(
     const QskGradientStops&, bool, const QskGradientStops&, bool,
     qreal ratio );
 
-// interpolating colors in direction of a color.
 QSK_EXPORT QskGradientStops qskInterpolatedGradientStops(
     const QskGradientStops&, const QColor&, qreal ratio );
 
-// interpolating colors starting from a color.
 QSK_EXPORT QskGradientStops qskInterpolatedGradientStops(
     const QColor&, const QskGradientStops&, qreal ratio );
 
-// interpolating the opacity of the colors
 QSK_EXPORT QskGradientStops qskTransparentGradientStops(
     const QskGradientStops&, qreal ratio );
 
-// extracting the colors of [from, to ] and stretching them to [0.0, 1.0]
 QSK_EXPORT QskGradientStops qskExtractedGradientStops(
     const QskGradientStops&, qreal from, qreal to );
 
-// reverting the color stops
-QSK_EXPORT QskGradientStops qskRevertedGradientStops( const QskGradientStops& );
-
-QSK_EXPORT QskGradientStops qskReplacedGradientStops(
-    const QskGradientStops&, const QskGradientStop&, const QskGradientStop& );
-
-QSK_EXPORT QskGradientStops qskClippedGradientStops(
-    const QskGradientStops&, qreal from, qreal to );
-
-/*
-   creating equidistant color stops from a list of colors.
-   when discrete is true the result will contain 2 stops at each position
-   one with the previous and one with the following color so that the
-   interval [pos1-pos2] will be monochrome.
- */
 QSK_EXPORT QskGradientStops qskBuildGradientStops(
     const QVector< QRgb >&, bool discrete = false );
 
 QSK_EXPORT QskGradientStops qskBuildGradientStops(
     const QVector< QColor >&, bool discrete = false );
 
-/*
-   convert color stops from/to a vector of QGradientStop, that can be
-   used for QGradients.
- */
-QSK_EXPORT QskGradientStops qskFromQGradientStops( const QVector< QGradientStop >& );
+QSK_EXPORT QskGradientStops qskRevertedGradientStops( const QskGradientStops& );
+
+QSK_EXPORT QskGradientStops qskBuildGradientStops( const QVector< QGradientStop >& );
 QSK_EXPORT QVector< QGradientStop > qskToQGradientStops( const QVector< QskGradientStop >& );
 
 #endif

src/common/QskTextColors.h

@@ -41,7 +41,7 @@ class QSK_EXPORT QskTextColors
     void setLinkColor( QRgb );
     void setLinkColor( Qt::GlobalColor );
 
-    QskTextColors interpolated( const QskTextColors&, qreal ratio ) const;
+    QskTextColors interpolated( const QskTextColors&, qreal value ) const;
 
     static QVariant interpolate( const QskTextColors&,
         const QskTextColors&, qreal ratio );

src/controls/QskMenuSkinlet.cpp

@@ -9,7 +9,6 @@
 #include "QskGraphic.h"
 #include "QskColorFilter.h"
 #include "QskTextOptions.h"
-#include "QskBoxHints.h"
 #include "QskFunctions.h"
 #include "QskMargins.h"
 #include "QskFunctions.h"
@@ -573,13 +572,11 @@ QSGNode* QskMenuSkinlet::updateSampleNode( const QskSkinnable* skinnable,
 
     if ( subControl == Q::Separator )
     {
-        auto hints = skinnable->boxHints( subControl );
-
-        auto& gradient = hints.gradient;
+        auto gradient = menu->gradientHint( subControl );
         if ( ( gradient.type() == QskGradient::Stops ) && !gradient.isMonochrome() )
             gradient.setLinearDirection( Qt::Vertical );
 
-        return updateBoxNode( menu, node, rect, hints );
+        return updateBoxNode( menu, node, rect, gradient, subControl );
     }
 
     return nullptr;

src/controls/QskModelObjectBinder.cpp

@@ -0,0 +1,274 @@
+/******************************************************************************
+ * QSkinny - Copyright (C) The authors
+ *           SPDX-License-Identifier: BSD-3-Clause
+ *****************************************************************************/
+
+#include "QskModelObjectBinder.h"
+
+#include <qmetaobject.h>
+#include <qabstractitemmodel.h>
+#include <qpointer.h>
+
+static inline QMetaProperty qskMetaProperty(
+    const QMetaObject* metaObject, const QByteArray& name )
+{
+    if ( name.isEmpty() )
+        return metaObject->userProperty();
+
+    const auto idx = metaObject->indexOfProperty( name );
+    return ( idx >= 0 ) ? metaObject->property( idx ) : QMetaProperty();
+}
+
+static void qskEnableConnections( QObject* object,
+    QskModelObjectBinder* binder, bool on )
+{
+    if ( on )
+    {
+        QObject::connect( object, &QObject::destroyed,
+            binder, &QskModelObjectBinder::unbindObject );
+    }
+    else
+    {
+        QObject::disconnect( object, &QObject::destroyed,
+            binder, &QskModelObjectBinder::unbindObject );
+    }
+}
+
+namespace
+{
+    struct Binding
+    {
+        Binding( int column, const QMetaProperty& property )
+            : property( property )
+            , column( column )
+        {
+        }
+
+        QMetaProperty property;
+        int column;
+    };
+}
+
+class QskModelObjectBinder::PrivateData
+{
+  public:
+    void updateProperties()
+    {
+        if ( model && currentRowIndex.isValid() )
+        {
+            for ( auto it = bindings.constBegin(); it != bindings.constEnd(); ++it )
+                updateObjectProperty( it.key(), it.value() );
+        }
+    }
+
+    void updateProperties( const QModelIndex& topLeft,
+        const QModelIndex& bottomRight, const QVector< int >& roles )
+    {
+        if ( !( model && currentRowIndex.isValid() ) )
+            return;
+
+        if ( !( roles.isEmpty() || roles.contains( Qt::EditRole ) ) )
+            return;
+
+        const int row = currentRowIndex.row();
+
+        if ( topLeft.row() <= row && row <= bottomRight.row() )
+        {
+            for ( auto it = bindings.constBegin(); it != bindings.constEnd(); ++it )
+            {
+                const int col = it.value().column;
+
+                if( topLeft.column() <= col && col <= bottomRight.column() )
+                    updateObjectProperty( it.key(), it.value() );
+            }
+        }
+    }
+
+    void updateObjectProperty( QObject* object, const Binding& binding )
+    {
+        const auto index = model->index( currentRowIndex.row(), binding.column );
+        binding.property.write( object, index.data( Qt::EditRole ) );
+    }
+
+  public:
+    QMap< QObject*, Binding > bindings;
+    QPointer< QAbstractItemModel > model;
+    QPersistentModelIndex currentRowIndex;
+};
+
+QskModelObjectBinder::QskModelObjectBinder( QObject* parent )
+    : QObject( parent )
+    , m_data( new PrivateData() )
+{
+}
+
+QskModelObjectBinder::QskModelObjectBinder( QAbstractItemModel* model, QObject* parent )
+    : QskModelObjectBinder( parent )
+{
+    setModel( model );
+}
+
+QskModelObjectBinder::~QskModelObjectBinder()
+{
+}
+
+void QskModelObjectBinder::bindObject(
+    QObject* object, int column, const QByteArray& propertyName )
+{
+    if( object == nullptr )
+        return;
+
+    // does not work with dynamic properties ...
+
+    const auto metaProperty = qskMetaProperty( object->metaObject(), propertyName );
+    Q_ASSERT( metaProperty.isValid() );
+
+    if ( metaProperty.isValid() )
+    {
+        const Binding binding = { column, metaProperty };
+
+        m_data->bindings.insert( object, binding );
+        qskEnableConnections( object, this, true );
+
+        if ( m_data->model && m_data->currentRowIndex.isValid() )
+            m_data->updateObjectProperty( object, binding );
+    }
+}
+
+void QskModelObjectBinder::unbindObject( QObject* object )
+{
+    auto& bindings = m_data->bindings;
+
+    auto it = bindings.find( object );
+    if ( it != bindings.end() )
+    {
+        qskEnableConnections( object, this, false );
+        bindings.erase( it );
+    }
+}
+
+void QskModelObjectBinder::clearBindings()
+{
+    auto& bindings = m_data->bindings;
+
+    for ( auto it = bindings.constBegin(); it != bindings.constEnd(); ++it )
+        qskEnableConnections( it.key(), this, false );
+
+    bindings.clear();
+}
+
+QObjectList QskModelObjectBinder::boundObjects() const
+{
+    auto& bindings = m_data->bindings;
+
+    QObjectList objects;
+    objects.reserve( bindings.count() );
+
+    for ( auto it = bindings.constBegin(); it != bindings.constEnd(); ++it )
+        objects += it.key();
+
+    return objects;
+}
+
+QMetaProperty QskModelObjectBinder::boundProperty( const QObject* object ) const
+{
+    auto it = m_data->bindings.constFind( const_cast< QObject* >( object ) );
+    if ( it != m_data->bindings.constEnd() )
+        return it.value().property;
+
+    return QMetaProperty();
+}
+
+void QskModelObjectBinder::setModel( QAbstractItemModel* model )
+{
+    if ( model == m_data->model )
+        return;
+
+    if ( m_data->model )
+    {
+        disconnect( m_data->model, &QAbstractItemModel::dataChanged, this, nullptr );
+
+        m_data->model = nullptr;
+        m_data->currentRowIndex = QModelIndex();
+
+        clearBindings();
+    }
+
+    m_data->model = model;
+
+    if( model )
+    {
+        auto updateProperties = [this](
+            const QModelIndex& topLeft, const QModelIndex& bottomRight,
+            const QVector< int >& roles )
+        {
+            m_data->updateProperties( topLeft, bottomRight, roles );
+        };
+
+        connect( m_data->model, &QAbstractItemModel::dataChanged,
+            this, updateProperties );
+
+        connect( m_data->model, &QObject::destroyed,
+            this, &QskModelObjectBinder::clearBindings );
+
+        setCurrentRow( 0 );
+    }
+}
+
+const QAbstractItemModel* QskModelObjectBinder::model() const
+{
+    return m_data->model;
+}
+
+QAbstractItemModel* QskModelObjectBinder::model()
+{
+    return m_data->model;
+}
+
+void QskModelObjectBinder::setCurrentRow( int row )
+{
+    auto model = m_data->model.data();
+    auto& bindings = m_data->bindings;
+
+    Q_ASSERT( model != nullptr );
+
+    if ( model && row >= 0 && row < model->rowCount() )
+    {
+        m_data->currentRowIndex = model->index( row, 0 );
+
+        for ( auto it = bindings.constBegin(); it != bindings.constEnd(); ++it )
+            m_data->updateObjectProperty( it.key(), it.value() );
+
+        Q_EMIT currentRowChanged( row );
+    }
+}
+
+int QskModelObjectBinder::currentRow() const
+{
+    return m_data->currentRowIndex.row();
+}
+
+void QskModelObjectBinder::submit()
+{
+    if ( auto model = m_data->model )
+    {
+        const auto& bindings = m_data->bindings;
+
+        for ( auto it = bindings.begin(); it != bindings.end(); ++it )
+        {
+            const auto value = it.value().property.read( it.key() );
+
+            const auto row = m_data->currentRowIndex.row();
+            const auto index = model->index( row, it.value().column );
+
+            model->setData( index, value );
+        }
+    }
+}
+
+void QskModelObjectBinder::revert()
+{
+    m_data->updateProperties();
+}
+
+#include "moc_QskModelObjectBinder.cpp"

src/controls/QskModelObjectBinder.h

@@ -0,0 +1,61 @@
+/******************************************************************************
+ * QSkinny - Copyright (C) The authors
+ *           SPDX-License-Identifier: BSD-3-Clause
+ *****************************************************************************/
+
+#ifndef QSK_MODEL_OBJECT_BINDER_H
+#define QSK_MODEL_OBJECT_BINDER_H
+
+#include "QskGlobal.h"
+
+#include <qobject.h>
+#include <qbytearray.h>
+
+#include <memory>
+
+class QAbstractItemModel;
+class QMetaProperty;
+
+class QSK_EXPORT QskModelObjectBinder : public QObject
+{
+    Q_OBJECT
+
+    Q_PROPERTY( int currentRow READ currentRow
+        WRITE setCurrentRow NOTIFY currentRowChanged )
+
+  public:
+    QskModelObjectBinder( QObject* parent = nullptr );
+    QskModelObjectBinder( QAbstractItemModel*, QObject* parent = nullptr );
+
+    ~QskModelObjectBinder() override;
+
+    void setModel( QAbstractItemModel* );
+
+    const QAbstractItemModel* model() const;
+    QAbstractItemModel* model();
+
+    void setCurrentRow( int row );
+    int currentRow() const;
+
+    void bindObject( QObject*, int column,
+        const QByteArray& propertyName = QByteArray() );
+
+    void unbindObject( QObject* );
+
+    QMetaProperty boundProperty( const QObject* ) const;
+    QObjectList boundObjects() const;
+
+  Q_SIGNALS:
+    void currentRowChanged( int );
+
+  public Q_SLOTS:
+    void submit();
+    void revert();
+    void clearBindings();
+
+  private:
+    class PrivateData;
+    std::unique_ptr< PrivateData > m_data;
+};
+
+#endif

src/controls/QskPopupSkinlet.cpp

@@ -6,7 +6,6 @@
 #include "QskPopupSkinlet.h"
 #include "QskPopup.h"
 #include "QskRgbValue.h"
-#include "QskBoxHints.h"
 
 static inline QRgb qskInterpolatedRgb( QRgb rgb, qreal factor )
 {
@@ -59,9 +58,7 @@ QSGNode* QskPopupSkinlet::updateOverlayNode(
     if ( rect.isEmpty() )
         return nullptr;
 
-    auto hints = popup->boxHints( Q::Overlay );
-
-    auto& gradient = hints.gradient;
+    auto gradient = popup->gradientHint( Q::Overlay );
 
     if ( gradient.isVisible() && factor != 1.0 )
     {
@@ -73,7 +70,7 @@ QSGNode* QskPopupSkinlet::updateOverlayNode(
         gradient.setStops( stops );
     }
 
-    return updateBoxNode( popup, node, rect, hints );
+    return updateBoxNode( popup, node, rect, gradient, QskPopup::Overlay );
 }
 
 #include "moc_QskPopupSkinlet.cpp"

src/controls/QskProgressBarSkinlet.cpp

@@ -6,7 +6,7 @@
 #include "QskProgressBarSkinlet.h"
 #include "QskProgressBar.h"
 #include "QskIntervalF.h"
-#include "QskBoxHints.h"
+#include "QskBoxBorderMetrics.h"
 
 #include <qeasingcurve.h>
 #include <cmath>
@@ -50,6 +50,41 @@ static QskIntervalF qskFillInterval( const QskProgressIndicator* indicator )
     return QskIntervalF( pos1, pos2 );
 }
 
+static QskGradient qskFillGradient( const QskProgressBar* progressBar )
+{
+    auto gradient = progressBar->gradientHint( Q::Fill );
+
+    if ( gradient.isVisible() && !gradient.isMonochrome()
+        && ( gradient.type() == QskGradient::Stops ) )
+    {
+        /*
+            When having stops only we use a linear gradient,
+            where the colors are increasing in direction of the
+            progress value. We interprete the gradient as a
+            definition for the 100% situation and have to adjust
+            the stops for smaller bars.
+
+            For this situation it would be more convenient to
+            adjust the start/stop positions, but the box renderer is
+            not supporting this yet. TODO ...
+         */
+
+        const auto intv = qskFillInterval( progressBar );
+
+        const auto stops = qskExtractedGradientStops(
+            gradient.stops(), intv.lowerBound(), intv.upperBound() );
+
+        gradient.setStops( stops );
+
+        gradient.setLinearDirection( progressBar->orientation() );
+
+        if ( progressBar->orientation() == Qt::Vertical || progressBar->layoutMirroring() )
+            gradient.reverse();
+    }
+
+    return gradient;
+}
+
 QskProgressBarSkinlet::QskProgressBarSkinlet( QskSkin* skin )
     : Inherited( skin )
 {
@@ -87,40 +122,9 @@ QSGNode* QskProgressBarSkinlet::updateFillNode(
     if ( rect.isEmpty() )
         return nullptr;
 
-    auto hints = indicator->boxHints( Q::Fill );
-
-    auto& gradient = hints.gradient;
-
-    if ( gradient.isVisible() && !gradient.isMonochrome()
-         && ( gradient.type() == QskGradient::Stops ) )
-    {
-        /*
-            When having stops only we use a linear gradient,
-            where the colors are increasing in direction of the
-            progress value. We interprete the gradient as a
-            definition for the 100% situation and have to adjust
-            the stops for smaller bars.
-
-            For this situation it would be more convenient to
-            adjust the start/stop positions, but the box renderer is
-            not supporting this yet. TODO ...
-         */
-
-        const auto intv = qskFillInterval( indicator );
-
-        const auto stops = qskExtractedGradientStops(
-            gradient.stops(), intv.lowerBound(), intv.upperBound() );
-
-        gradient.setStops( stops );
-
-        const auto orientation = static_cast< const Q* >( indicator )->orientation();
-        gradient.setLinearDirection( orientation );
-
-        if ( orientation == Qt::Vertical || indicator->layoutMirroring() )
-            gradient.reverse();
-    }
-
-    return updateBoxNode( indicator, node, rect, hints );
+    const auto progressBar = static_cast< const Q* >( indicator );
+    return updateBoxNode( indicator, node, rect,
+        qskFillGradient( progressBar ), Q::Fill );
 }
 
 QRectF QskProgressBarSkinlet::grooveRect(

src/controls/QskProgressRingSkinlet.cpp

@@ -4,7 +4,7 @@
  *****************************************************************************/
 
 #include "QskProgressRingSkinlet.h"
-#include "QskArcHints.h"
+#include "QskArcMetrics.h"
 #include "QskProgressRing.h"
 #include "QskIntervalF.h"
 
@@ -85,12 +85,8 @@ QSGNode* QskProgressRingSkinlet::updateGrooveNode(
                 endAngle = fillAngles.first - 360.0 + spacing;
             }
 
-            auto hints = indicator->arcHints( Q::Groove );
-            hints.metrics.setStartAngle( startAngle );
-            hints.metrics.setSpanAngle( endAngle - startAngle );
-
-            const auto rect = indicator->subControlRect( Q::Groove );
-            return updateArcNode( ring, node, rect, hints );
+            return updateArcNode( ring, node,
+                startAngle, endAngle - startAngle, Q::Groove );
         }
     }
 
@@ -108,14 +104,16 @@ QSGNode* QskProgressRingSkinlet::updateFillNode(
     if ( rect.isEmpty() )
         return nullptr;
 
-    auto hints = ring->arcHints( subControl );
-    if ( !hints.isVisible() )
+    const auto metrics = ring->arcMetricsHint( subControl );
+    if ( metrics.isNull() )
+        return nullptr;
+
+    auto gradient = ring->gradientHint( subControl );
+    if ( !gradient.isVisible() )
         return nullptr;
 
     const auto intv = qskFillInterval( ring );
 
-    auto& gradient = hints.gradient;
-
     if ( ( gradient.type() == QskGradient::Stops ) && !gradient.isMonochrome() )
     {
         const auto stops = qskExtractedGradientStops( gradient.stops(),
@@ -123,15 +121,14 @@ QSGNode* QskProgressRingSkinlet::updateFillNode(
 
         gradient.setStops( stops );
 
-        if ( hints.metrics.spanAngle() < 0.0 )
+        if ( metrics.spanAngle() < 0.0 )
             gradient.reverse();
     }
 
-    const auto angles = qskFillAngles( hints.metrics, intv );
-    hints.metrics.setStartAngle( angles.first );
-    hints.metrics.setSpanAngle( angles.second - angles.first );
+    const auto angles = qskFillAngles( metrics, intv );
 
-    return updateArcNode( ring, node, rect, hints );
+    return updateArcNode( ring, node, rect, gradient,
+        angles.first, angles.second - angles.first, subControl );
 }
 
 QSizeF QskProgressRingSkinlet::sizeHint( const QskSkinnable* skinnable,

src/controls/QskSeparatorSkinlet.cpp

@@ -6,7 +6,6 @@
 #include "QskSeparatorSkinlet.h"
 #include "QskSeparator.h"
 
-#include "QskBoxHints.h"
 #include "QskGradientDirection.h"
 #include "QskAspect.h"
 
@@ -43,12 +42,8 @@ QSGNode* QskSeparatorSkinlet::updateSubNode(
             using Q = QskSeparator;
 
             const auto rect = separator->subControlRect( Q::Panel );
-            if ( rect.isEmpty() )
-                return nullptr;
 
-            auto hints = separator->boxHints( Q::Panel );
-
-            auto& gradient = hints.gradient;
+            auto gradient = separator->gradientHint( Q::Panel );
             if ( ( gradient.type() == QskGradient::Stops ) && !gradient.isMonochrome() )
             {
                 // gradient in opposite orientation
@@ -58,7 +53,7 @@ QSGNode* QskSeparatorSkinlet::updateSubNode(
                 gradient.setLinearDirection( orientation );
             }
 
-            return updateBoxNode( separator, node, rect, hints );
+            return updateBoxNode( separator, node, rect, gradient, Q::Panel );
         }
     }
 

src/controls/QskSkinlet.cpp

@@ -7,7 +7,9 @@
 
 #include "QskArcNode.h"
 #include "QskAspect.h"
-#include "QskArcHints.h"
+#include "QskArcMetrics.h"
+#include "QskBoxBorderColors.h"
+#include "QskBoxBorderMetrics.h"
 #include "QskBoxNode.h"
 #include "QskBoxRectangleNode.h"
 #include "QskBoxShapeMetrics.h"
@@ -154,6 +156,18 @@ static inline bool qskIsBoxVisible( const QskBoxBorderMetrics& borderMetrics,
     return !borderMetrics.isNull() && borderColors.isVisible();
 }
 
+static inline bool qskIsArcVisible( const QskArcMetrics& arcMetrics,
+    qreal borderWidth, const QColor borderColor, const QskGradient& gradient )
+{
+    if ( arcMetrics.isNull() )
+        return false;
+
+    if ( borderWidth > 0.0 && borderColor.isValid() && borderColor.alpha() > 0 )
+        return true;
+
+    return gradient.isVisible();
+}
+
 static inline bool qskIsLineVisible( const QColor& lineColor, qreal lineWidth )
 {
     return ( lineWidth > 0.0 ) && lineColor.isValid() && ( lineColor.alpha() > 0 );
@@ -188,18 +202,22 @@ static inline QQuickWindow* qskWindowOfSkinnable( const QskSkinnable* skinnable
     return nullptr;
 }
 
-static inline QSGNode* qskUpdateBoxNode( const QskSkinnable* skinnable,
-    QSGNode* node, const QRectF& rect, const QskBoxHints& hints )
+static inline QSGNode* qskUpdateBoxNode(
+    const QskSkinnable* skinnable, QSGNode* node, const QRectF& rect,
+    const QskBoxShapeMetrics& shape, const QskBoxBorderMetrics& borderMetrics,
+    const QskBoxBorderColors& borderColors, const QskGradient& gradient,
+    const QskShadowMetrics& shadowMetrics, const QColor& shadowColor )
 {
     if ( !rect.isEmpty() )
     {
-        if ( qskIsBoxVisible( hints.borderMetrics, hints.borderColors, hints.gradient )
-            || qskIsShadowVisible( hints.shadowMetrics, hints.shadowColor ) )
+        if ( qskIsBoxVisible( borderMetrics, borderColors, gradient )
+            || qskIsShadowVisible( shadowMetrics, shadowColor ) )
         {
             if ( auto window = qskWindowOfSkinnable( skinnable ) )
             {
                 auto boxNode = QskSGNode::ensureNode< QskBoxNode >( node );
-                boxNode->updateNode( window, rect, hints );
+                boxNode->updateNode( window, rect, shape, borderMetrics,
+                    borderColors, gradient, shadowMetrics, shadowColor );
 
                 return boxNode;
             }
@@ -209,20 +227,21 @@ static inline QSGNode* qskUpdateBoxNode( const QskSkinnable* skinnable,
     return nullptr;
 }
 
-static inline QSGNode* qskUpdateArcNode( const QskSkinnable* skinnable,
-    QSGNode* node, const QRectF& rect, const QskArcHints& hints )
+static inline QSGNode* qskUpdateArcNode(
+    const QskSkinnable*, QSGNode* node, const QRectF& rect,
+    qreal borderWidth, const QColor borderColor,
+    const QskGradient& gradient, const QskArcMetrics& metrics )
 {
-    Q_UNUSED( skinnable );
+    if ( rect.isEmpty() )
+        return nullptr;
 
-    if ( !rect.isEmpty() && hints.isVisible() )
-    {
-        auto arcNode = QskSGNode::ensureNode< QskArcNode >( node );
-        arcNode->setArcData( rect, hints );
+    if ( !qskIsArcVisible( metrics, borderWidth, borderColor, gradient ) )
+        return nullptr;
 
-        return arcNode;
-    }
+    auto arcNode = QskSGNode::ensureNode< QskArcNode >( node );
+    arcNode->setArcData( rect, metrics, borderWidth, borderColor, gradient );
 
-    return nullptr;
+    return arcNode;
 }
 
 static inline QSGNode* qskUpdateLineNode(
@@ -415,30 +434,54 @@ void QskSkinlet::replaceChildNode( quint8 role,
 QSGNode* QskSkinlet::updateBoxNode( const QskSkinnable* skinnable,
     QSGNode* node, QskAspect::Subcontrol subControl ) const
 {
-    auto r = qskSubControlRect( this, skinnable, subControl );
-    if ( r.isEmpty() )
-        return nullptr;
-
-    r = r.marginsRemoved( skinnable->marginHint( subControl ) );
-
-    return qskUpdateBoxNode( skinnable, node,
-        r, skinnable->boxHints( subControl ) );
+    const auto rect = qskSubControlRect( this, skinnable, subControl );
+    return updateBoxNode( skinnable, node, rect, subControl );
 }
 
 QSGNode* QskSkinlet::updateBoxNode( const QskSkinnable* skinnable,
     QSGNode* node, const QRectF& rect, QskAspect::Subcontrol subControl )
 {
-    if ( rect.isEmpty() )
+    const auto fillGradient = skinnable->gradientHint( subControl );
+    return updateBoxNode( skinnable, node, rect, fillGradient, subControl );
+}
+
+QSGNode* QskSkinlet::updateBoxNode( const QskSkinnable* skinnable,
+    QSGNode* node, const QRectF& rect, const QskGradient& fillGradient,
+    QskAspect::Subcontrol subControl )
+{
+    const auto margins = skinnable->marginHint( subControl );
+
+    const auto boxRect = rect.marginsRemoved( margins );
+    if ( boxRect.isEmpty() )
         return nullptr;
 
-    const auto r = rect.marginsRemoved( skinnable->marginHint( subControl ) );
-    return qskUpdateBoxNode( skinnable, node, r, skinnable->boxHints( subControl ) );
+    const auto borderMetrics = skinnable->boxBorderMetricsHint( subControl );
+    const auto borderColors = skinnable->boxBorderColorsHint( subControl );
+    const auto shape = skinnable->boxShapeHint( subControl );
+    const auto shadowMetrics = skinnable->shadowMetricsHint( subControl );
+    const auto shadowColor = skinnable->shadowColorHint( subControl );
+
+    return qskUpdateBoxNode( skinnable, node,
+        boxRect, shape, borderMetrics, borderColors, fillGradient,
+        shadowMetrics, shadowColor );
+}
+
+QSGNode* QskSkinlet::updateBoxNode(
+    const QskSkinnable* skinnable, QSGNode* node, const QRectF& rect,
+    const QskBoxShapeMetrics& shape, const QskBoxBorderMetrics& borderMetrics,
+    const QskBoxBorderColors& borderColors, const QskGradient& fillGradient )
+{
+    return qskUpdateBoxNode( skinnable, node,
+        rect, shape, borderMetrics, borderColors, fillGradient,
+        QskShadowMetrics(), QColor() );
 }
 
 QSGNode* QskSkinlet::updateBoxNode( const QskSkinnable* skinnable,
     QSGNode* node, const QRectF& rect, const QskBoxHints& hints )
 {
-    return qskUpdateBoxNode( skinnable, node, rect, hints );
+    return qskUpdateBoxNode( skinnable, node, rect,
+        hints.shape, hints.borderMetrics, hints.borderColors, hints.gradient,
+        hints.shadowMetrics, hints.shadowColor );
 }
 
 QSGNode* QskSkinlet::updateInterpolatedBoxNode(
@@ -483,24 +526,79 @@ QSGNode* QskSkinlet::updateInterpolatedBoxNode(
 QSGNode* QskSkinlet::updateArcNode( const QskSkinnable* skinnable,
     QSGNode* node, QskAspect::Subcontrol subControl ) const
 {
-    auto rect = qskSubControlRect( this, skinnable, subControl );
-    rect = rect.marginsRemoved( skinnable->marginHint( subControl ) );
-
-    return qskUpdateArcNode( skinnable,
-        node, rect, skinnable->arcHints( subControl ) );
-}
-
-QSGNode* QskSkinlet::updateArcNode( const QskSkinnable* skinnable,
-    QSGNode* node, const QRectF& rect, const QskArcHints& hints )
-{
-    return qskUpdateArcNode( skinnable, node, rect, hints );
+    const auto rect = qskSubControlRect( this, skinnable, subControl );
+    return updateArcNode( skinnable, node, rect, subControl );
 }
 
 QSGNode* QskSkinlet::updateArcNode( const QskSkinnable* skinnable,
     QSGNode* node, const QRectF& rect, QskAspect::Subcontrol subControl )
 {
+    const auto fillGradient = skinnable->gradientHint( subControl );
+    return updateArcNode( skinnable, node, rect, fillGradient, subControl );
+}
+
+QSGNode* QskSkinlet::updateArcNode( const QskSkinnable* skinnable,
+    QSGNode* node, const QRectF& rect, const QskGradient& fillGradient,
+    QskAspect::Subcontrol subControl )
+{
+    const auto metrics = skinnable->arcMetricsHint( subControl );
+    const auto r = rect.marginsRemoved( skinnable->marginHint( subControl ) );
+
+    const qreal borderWidth = skinnable->metric( subControl | QskAspect::Border );
+
+    QColor borderColor;
+    if ( borderWidth > 0.0 )
+        borderColor = skinnable->color( subControl | QskAspect::Border );
+
     return qskUpdateArcNode( skinnable, node,
-        rect, skinnable->arcHints( subControl ) );
+        r, borderWidth, borderColor, fillGradient, metrics );
+}
+
+QSGNode* QskSkinlet::updateArcNode(
+    const QskSkinnable* skinnable, QSGNode* node, const QRectF& rect,
+    qreal borderWidth, const QColor& borderColor,
+    const QskGradient& fillGradient, const QskArcMetrics& metrics )
+{
+    return qskUpdateArcNode( skinnable, node, rect,
+        borderWidth, borderColor, fillGradient, metrics );
+}
+
+QSGNode* QskSkinlet::updateArcNode( const QskSkinnable* skinnable,
+    QSGNode* node, qreal startAngle, qreal spanAngle,
+    QskAspect::Subcontrol subControl ) const
+{
+    const auto rect = qskSubControlRect( this, skinnable, subControl );
+
+    return updateArcNode( skinnable, node,
+        rect, startAngle, spanAngle, subControl );
+}
+
+QSGNode* QskSkinlet::updateArcNode( const QskSkinnable* skinnable,
+    QSGNode* node, const QRectF& rect, qreal startAngle, qreal spanAngle,
+    QskAspect::Subcontrol subControl )
+{
+    const auto fillGradient = skinnable->gradientHint( subControl );
+    return updateArcNode( skinnable, node, rect,
+        fillGradient, startAngle, spanAngle, subControl );
+}
+
+QSGNode* QskSkinlet::updateArcNode( const QskSkinnable* skinnable,
+    QSGNode* node, const QRectF& rect, const QskGradient& fillGradient,
+    qreal startAngle, qreal spanAngle, QskAspect::Subcontrol subControl )
+{
+    auto arcMetrics = skinnable->arcMetricsHint( subControl );
+    arcMetrics.setStartAngle( startAngle );
+    arcMetrics.setSpanAngle( spanAngle );
+
+    const qreal borderWidth = skinnable->metric( subControl | QskAspect::Border );
+
+    QColor borderColor;
+    if ( borderWidth > 0.0 )
+        borderColor = skinnable->color( subControl | QskAspect::Border );
+
+    const auto r = rect.marginsRemoved( skinnable->marginHint( subControl ) );
+    return updateArcNode( skinnable, node, r,
+        borderWidth, borderColor, fillGradient, arcMetrics );
 }
 
 QSGNode* QskSkinlet::updateLineNode( const QskSkinnable* skinnable,

src/controls/QskSkinlet.h

@@ -23,8 +23,10 @@ class QskColorFilter;
 class QskGraphic;
 class QskTextOptions;
 class QskTextColors;
+class QskBoxShapeMetrics;
+class QskBoxBorderMetrics;
+class QskBoxBorderColors;
 class QskBoxHints;
-class QskArcHints;
 
 class QSGNode;
 
@@ -74,6 +76,13 @@ class QSK_EXPORT QskSkinlet
     static QSGNode* updateBoxNode( const QskSkinnable*, QSGNode*,
         const QRectF&, QskAspect::Subcontrol );
 
+    static QSGNode* updateBoxNode( const QskSkinnable*, QSGNode*,
+        const QRectF&, const QskGradient&, QskAspect::Subcontrol );
+
+    static QSGNode* updateBoxNode( const QskSkinnable*, QSGNode*,
+        const QRectF&, const QskBoxShapeMetrics&, const QskBoxBorderMetrics&,
+        const QskBoxBorderColors&, const QskGradient& );
+
     static QSGNode* updateBoxNode( const QskSkinnable*, QSGNode*,
         const QRectF&, const QskBoxHints& );
 
@@ -85,7 +94,18 @@ class QSK_EXPORT QskSkinlet
         const QRectF&, QskAspect::Subcontrol );
 
     static QSGNode* updateArcNode( const QskSkinnable*, QSGNode*,
-        const QRectF&, const QskArcHints& );
+        const QRectF&, const QskGradient&, QskAspect::Subcontrol );
+
+    static QSGNode* updateArcNode( const QskSkinnable*, QSGNode*,
+        const QRectF&, qreal borderWidth, const QColor& borderColor,
+        const QskGradient&, const QskArcMetrics& );
+
+    static QSGNode* updateArcNode( const QskSkinnable*, QSGNode*,
+        const QRectF&, qreal startAngle, qreal spanAngle, QskAspect::Subcontrol );
+
+    static QSGNode* updateArcNode( const QskSkinnable*, QSGNode*,
+        const QRectF&, const QskGradient&, qreal startAngle, qreal spanAngle,
+        QskAspect::Subcontrol );
 
     static QSGNode* updateLineNode( const QskSkinnable*, QSGNode*,
         const QLineF&, QskAspect::Subcontrol );
@@ -136,6 +156,10 @@ class QSK_EXPORT QskSkinlet
     QSGNode* updateArcNode( const QskSkinnable*, QSGNode*,
         QskAspect::Subcontrol ) const;
 
+    QSGNode* updateArcNode( const QskSkinnable*, QSGNode*,
+        qreal startAngle, qreal spanAngle,
+        QskAspect::Subcontrol ) const;
+
     QSGNode* updateBoxClipNode( const QskSkinnable*, QSGNode*,
         QskAspect::Subcontrol ) const;
 

src/controls/QskSkinnable.cpp

@@ -6,7 +6,7 @@
 #include "QskSkinnable.h"
 
 #include "QskAnimationHint.h"
-#include "QskArcHints.h"
+#include "QskArcMetrics.h"
 #include "QskAspect.h"
 #include "QskColorFilter.h"
 #include "QskControl.h"
@@ -637,23 +637,9 @@ QColor QskSkinnable::shadowColorHint( QskAspect aspect, QskSkinHintStatus* statu
 QskBoxHints QskSkinnable::boxHints( QskAspect aspect ) const
 {
     return QskBoxHints(
-        boxShapeHint( aspect ),
-        boxBorderMetricsHint( aspect ),
-        boxBorderColorsHint( aspect ),
-        gradientHint( aspect ),
-        shadowMetricsHint( aspect ),
-        shadowColorHint( aspect )
-    );
-}
-
-QskArcHints QskSkinnable::arcHints( QskAspect aspect ) const
-{
-    return QskArcHints(
-        arcMetricsHint( aspect ),
-        metric( aspect | QskAspect::Border ),
-        color( aspect | QskAspect::Border ),
-        gradientHint( aspect )
-    );
+        boxShapeHint( aspect ), boxBorderMetricsHint( aspect ),
+        boxBorderColorsHint( aspect ), gradientHint( aspect ),
+        shadowMetricsHint( aspect ), shadowColorHint( aspect ) );
 }
 
 bool QskSkinnable::setArcMetricsHint(

src/controls/QskSkinnable.h

@@ -22,7 +22,6 @@ class QDebug;
 class QSGNode;
 class QQuickItem;
 
-class QskArcHints;
 class QskArcMetrics;
 class QskControl;
 class QskAnimationHint;
@@ -227,7 +226,6 @@ class QSK_EXPORT QskSkinnable
     QColor shadowColorHint( QskAspect, QskSkinHintStatus* = nullptr ) const;
 
     QskBoxHints boxHints( QskAspect ) const;
-    QskArcHints arcHints( QskAspect ) const;
 
     bool setArcMetricsHint( QskAspect, const QskArcMetrics& );
     bool resetArcMetricsHint( QskAspect );

src/controls/QskSlider.cpp

@@ -197,23 +197,6 @@ bool QskSlider::hasOrigin() const
     return m_data->hasOrigin;
 }
 
-void QskSlider::setTickPolicy( Qsk::Policy policy )
-{
-    if ( setFlagHint( Tick | QskAspect::Option, policy ) )
-        Q_EMIT tickPolicyChanged( policy );
-}
-
-void QskSlider::resetTickPolicy()
-{
-    if ( resetSkinHint( Tick | QskAspect::Option ) )
-        Q_EMIT tickPolicyChanged( tickPolicy() );
-}
-
-Qsk::Policy QskSlider::tickPolicy() const
-{
-    return flagHint< Qsk::Policy >( Tick | QskAspect::Option, Qsk::Maybe );
-}
-
 QskAspect::Variation QskSlider::effectiveVariation() const
 {
     return static_cast< QskAspect::Variation >( m_data->orientation );

src/controls/QskSlider.h

@@ -22,9 +22,6 @@ class QSK_EXPORT QskSlider : public QskBoundedValueInput
     Q_PROPERTY( bool tracking READ isTracking
         WRITE setTracking NOTIFY trackingChanged )
 
-    Q_PROPERTY( Qsk::Policy tickPolicy READ tickPolicy
-        WRITE setTickPolicy RESET resetTickPolicy NOTIFY tickPolicyChanged )
-
     Q_PROPERTY( qreal origin READ origin
         WRITE setOrigin RESET resetOrigin NOTIFY originChanged )
 
@@ -42,10 +39,6 @@ class QSK_EXPORT QskSlider : public QskBoundedValueInput
     void setOrientation( Qt::Orientation );
     Qt::Orientation orientation() const;
 
-    void setTickPolicy( Qsk::Policy );
-    void resetTickPolicy();
-    Qsk::Policy tickPolicy() const;
-
     void setInverted( bool );
     bool isInverted() const;
 
@@ -68,7 +61,6 @@ class QSK_EXPORT QskSlider : public QskBoundedValueInput
     void invertedChanged( bool );
     void trackingChanged( bool );
     void originChanged( qreal );
-    void tickPolicyChanged( Qsk::Policy );
 
   protected:
     void mousePressEvent( QMouseEvent* ) override;

src/controls/QskSliderSkinlet.cpp

@@ -388,7 +388,10 @@ bool QskSliderSkinlet::hasGraduation( const QskSlider* slider ) const
 {
     if ( slider->stepSize() )
     {
-        switch( slider->tickPolicy() )
+        const auto policy = slider->flagHint< Qsk::Policy >(
+            Q::Tick | QskAspect::Option, Qsk::Never );
+
+        switch( policy )
         {
             case Qsk::Always:
                 return true;

src/controls/QskTabBar.cpp

@@ -129,7 +129,7 @@ namespace
         {
             if ( qskIsAncestorOf( this, item ) )
             {
-                const auto pos = mapFromItem( item, QPointF() ) + scrollPos();
+                const auto pos = mapFromItem( item, QPointF() );
                 ensureVisible( QRectF( pos.x(), pos.y(), item->width(), item->height() ) );
             }
         }

src/controls/QskVariantAnimator.cpp

@@ -13,7 +13,6 @@
 #include "QskGraduationMetrics.h"
 #include "QskColorFilter.h"
 #include "QskGradient.h"
-#include "QskGradientStop.h"
 #include "QskMargins.h"
 #include "QskIntervalF.h"
 #include "QskTextColors.h"
@@ -44,7 +43,6 @@ static void qskRegisterInterpolator()
     qRegisterAnimationInterpolator< QskColorFilter >( QskColorFilter::interpolate );
     qRegisterAnimationInterpolator< QskIntervalF >( QskIntervalF::interpolate );
     qRegisterAnimationInterpolator< QskMargins >( QskMargins::interpolate );
-    qRegisterAnimationInterpolator< QskGradientStop >( QskGradientStop::interpolate );
     qRegisterAnimationInterpolator< QskGradient >( QskGradient::interpolate );
     qRegisterAnimationInterpolator< QskBoxShapeMetrics >( QskBoxShapeMetrics::interpolate );
     qRegisterAnimationInterpolator< QskBoxBorderMetrics >( QskBoxBorderMetrics::interpolate );

src/nodes/QskArcNode.cpp

@@ -4,10 +4,11 @@
  *****************************************************************************/
 
 #include "QskArcNode.h"
-#include "QskArcHints.h"
+#include "QskArcMetrics.h"
 #include "QskArcRenderNode.h"
 #include "QskArcRenderer.h"
 #include "QskMargins.h"
+#include "QskGradient.h"
 #include "QskSGNode.h"
 #include "QskRgbValue.h"
 
@@ -57,21 +58,24 @@ QskArcNode::~QskArcNode()
 {
 }
 
-void QskArcNode::setArcData( const QRectF& rect, const QskArcHints& hints )
+void QskArcNode::setArcData( const QRectF& rect,
+    const QskArcMetrics& arcMetrics, const QskGradient& gradient )
+{
+    setArcData( rect, arcMetrics, 0.0, QColor(), gradient );
+}
+
+void QskArcNode::setArcData( const QRectF& rect, const QskArcMetrics& arcMetrics,
+    const qreal borderWidth, const QColor& borderColor, const QskGradient& gradient )
 {
     using namespace QskSGNode;
 
     QskArcRenderNode* arcNode = nullptr;
     QskArcRenderNode* fillNode = nullptr;
 
-    if ( !rect.isEmpty() && hints.isVisible() )
+    if ( !( rect.isEmpty() || arcMetrics.isNull() ) )
     {
-        const auto& gradient = hints.gradient;
-        const auto borderWidth = hints.borderWidth;
-        const auto borderColor = hints.borderColor;
-
         const bool radial = false;
-        const auto metricsArc = hints.metrics.toAbsolute( rect.size() );
+        const auto metricsArc = arcMetrics.toAbsolute( rect.size() );
 
         const auto hasFilling = gradient.isVisible();
         const auto hasBorder = ( borderWidth > 0.0 ) && QskRgb::isVisible( borderColor );

src/nodes/QskArcNode.h

@@ -9,7 +9,8 @@
 #include "QskGlobal.h"
 #include <qsgnode.h>
 
-class QskArcHints;
+class QskArcMetrics;
+class QskGradient;
 
 class QSK_EXPORT QskArcNode : public QSGNode
 {
@@ -17,7 +18,10 @@ class QSK_EXPORT QskArcNode : public QSGNode
     QskArcNode();
     ~QskArcNode() override;
 
-    void setArcData( const QRectF&, const QskArcHints& );
+    void setArcData( const QRectF&, const QskArcMetrics&, const QskGradient& );
+
+    void setArcData( const QRectF&, const QskArcMetrics&,
+        qreal borderWidth, const QColor& borderColor, const QskGradient& );
 };
 
 #endif

src/nodes/QskBoxNode.cpp

@@ -8,8 +8,12 @@
 #include "QskBoxRectangleNode.h"
 #include "QskSGNode.h"
 
-#include "QskBoxHints.h"
+#include "QskGradient.h"
 #include "QskGradientDirection.h"
+#include "QskShadowMetrics.h"
+#include "QskBoxBorderMetrics.h"
+#include "QskBoxBorderColors.h"
+#include "QskBoxShapeMetrics.h"
 #include "QskRgbValue.h"
 
 namespace
@@ -56,8 +60,10 @@ QskBoxNode::~QskBoxNode()
 {
 }
 
-void QskBoxNode::updateNode( const QQuickWindow* window,
-    const QRectF& rect, const QskBoxHints& hints )
+void QskBoxNode::updateNode( const QQuickWindow* window, const QRectF& rect,
+    const QskBoxShapeMetrics& shapeMetrics, const QskBoxBorderMetrics& borderMetrics,
+    const QskBoxBorderColors& borderColors, const QskGradient& gradient,
+    const QskShadowMetrics& shadowMetrics, const QColor& shadowColor )
 {
     using namespace QskSGNode;
 
@@ -68,13 +74,6 @@ void QskBoxNode::updateNode( const QQuickWindow* window,
 
     if ( !rect.isEmpty() )
     {
-        const auto& shapeMetrics = hints.shape;
-        const auto& borderMetrics = hints.borderMetrics;
-        const auto& borderColors = hints.borderColors;
-        const auto& gradient = hints.gradient;
-        const auto& shadowMetrics = hints.shadowMetrics;
-        const auto& shadowColor = hints.shadowColor;
-
         const auto hasFilling = gradient.isVisible();
         const auto hasBorder = !borderMetrics.isNull() && borderColors.isVisible();
         const auto hasShadow = !shadowMetrics.isNull() && QskRgb::isVisible( shadowColor );

src/nodes/QskBoxNode.h

@@ -9,8 +9,14 @@
 #include "QskGlobal.h"
 #include <qsgnode.h>
 
-class QskBoxHints;
+class QskShadowMetrics;
+class QskBoxShapeMetrics;
+class QskBoxBorderMetrics;
+class QskBoxBorderColors;
+class QskGradient;
+class QskShadowMetrics;
 class QQuickWindow;
+class QColor;
 
 class QSK_EXPORT QskBoxNode : public QSGNode
 {
@@ -18,7 +24,10 @@ class QSK_EXPORT QskBoxNode : public QSGNode
     QskBoxNode();
     ~QskBoxNode() override;
 
-    void updateNode( const QQuickWindow*, const QRectF&, const QskBoxHints& );
+    void updateNode( const QQuickWindow*, const QRectF&,
+        const QskBoxShapeMetrics&, const QskBoxBorderMetrics&,
+        const QskBoxBorderColors&, const QskGradient&,
+        const QskShadowMetrics&, const QColor& shadowColor );
 };
 
 #endif

src/nodes/QskGradientMaterial.cpp

@@ -54,16 +54,16 @@ namespace
         }
 
 #if QT_VERSION >= QT_VERSION_CHECK( 6, 0, 0 )
+        // make Qt 5/6 APIs matching
+
         QSGMaterialShader* createShader(
             QSGRendererInterface::RenderMode ) const override final
-#else
-        QSGMaterialShader* createShader() const override final
-#endif
         {
-            return createMaterialShader();
+            return createShader();
         }
 
-        virtual QSGMaterialShader* createMaterialShader() const = 0;
+        virtual QSGMaterialShader* createShader() const = 0;
+#endif
 
         virtual bool setGradient( const QskGradient& ) = 0;
     };
@@ -217,7 +217,7 @@ namespace
                 return GradientMaterial::compare( other );
         }
 
-        QSGMaterialShader* createMaterialShader() const override;
+        QSGMaterialShader* createShader() const override;
 
         /*
             xy: position
@@ -299,7 +299,7 @@ namespace
     };
 #endif
 
-    QSGMaterialShader* LinearMaterial::createMaterialShader() const
+    QSGMaterialShader* LinearMaterial::createShader() const
     {
 #if QT_VERSION < QT_VERSION_CHECK( 6, 0, 0 )
         if ( !( flags() & QSGMaterial::RhiShaderWanted ) )
@@ -371,7 +371,7 @@ namespace
             }
         }
 
-        QSGMaterialShader* createMaterialShader() const override;
+        QSGMaterialShader* createShader() const override;
 
         QVector2D m_center;
         QVector2D m_radius;
@@ -465,7 +465,7 @@ namespace
     };
 #endif
 
-    QSGMaterialShader* RadialMaterial::createMaterialShader() const
+    QSGMaterialShader* RadialMaterial::createShader() const
     {
 #ifdef SHADER_GL
         if ( !( flags() & QSGMaterial::RhiShaderWanted ) )
@@ -575,7 +575,7 @@ namespace
             return GradientMaterial::compare( other );
         }
 
-        QSGMaterialShader* createMaterialShader() const override;
+        QSGMaterialShader* createShader() const override;
 
         QVector2D m_center;
         float m_aspectRatio = 1.0;
@@ -685,7 +685,7 @@ namespace
     };
 #endif
 
-    QSGMaterialShader* ConicMaterial::createMaterialShader() const
+    QSGMaterialShader* ConicMaterial::createShader() const
     {
 #ifdef SHADER_GL
         if ( !( flags() & QSGMaterial::RhiShaderWanted ) )