sizeHint calculations moved to skinlet

src/controls/QskStatusIndicator.cpp

@@ -54,6 +54,7 @@ class QskStatusIndicator::PrivateData
 
     int currentStatus;
     QMap< int, StatusData > map;
+    mutable QList<int> statusList;
 };
 
 QskStatusIndicator::QskStatusIndicator( QQuickItem* parent )
@@ -69,8 +70,8 @@ QskStatusIndicator::~QskStatusIndicator()
 
 QUrl QskStatusIndicator::source( int status ) const
 {
-    const auto it = m_data->map.find( status );
+    const auto it = m_data->map.constFind( status );
-    if ( it != m_data->map.end() )
+    if ( it != m_data->map.constEnd() )
         return it->source;
 
     return QUrl();
@@ -95,6 +96,8 @@ void QskStatusIndicator::setSource( int status, const QUrl& url )
     else
     {
         m_data->map.insert( status, StatusData( url ) );
+        m_data->statusList.clear();
+
         hasChanged = true;
     }
 
@@ -111,7 +114,10 @@ QskGraphic QskStatusIndicator::graphic( int status ) const
 {
     const auto it = m_data->map.find( status );
     if ( it != m_data->map.end() )
+    {
+        it->ensureGraphic( this );
         return it->graphic;
+    }
 
     return QskGraphic();
 }
@@ -135,6 +141,7 @@ void QskStatusIndicator::setGraphic( int status, const QskGraphic& graphic )
     else
     {
         m_data->map.insert( status, StatusData( graphic ) );
+        m_data->statusList.clear();
         hasChanged = true;
     }
 
@@ -153,41 +160,6 @@ QskColorFilter QskStatusIndicator::graphicFilter( int status ) const
     return effectiveGraphicFilter( QskStatusIndicator::Graphic );
 }
 
-QSizeF QskStatusIndicator::contentsSizeHint(
-    Qt::SizeHint which, const QSizeF& constraint ) const
-{
-    if ( which != Qt::PreferredSize )
-        return QSizeF();
-
-    QSizeF sz;
-
-    for ( auto& statusData : m_data->map )
-    {
-        statusData.ensureGraphic( this );
-
-        if ( !statusData.graphic.isEmpty() )
-        {
-            auto hint = statusData.graphic.defaultSize();
-
-            if ( !hint.isEmpty() )
-            {
-                if ( constraint.width() >= 0.0 )
-                {
-                    hint.setHeight( sz.height() * constraint.width() / sz.width() );
-                }
-                else if ( constraint.height() >= 0.0 )
-                {
-                    hint.setWidth( sz.width() * constraint.height() / sz.height() );
-                }
-            }
-
-            sz = sz.expandedTo( hint );
-        }
-    }
-
-    return sz;
-}
-
 int QskStatusIndicator::status() const
 {
     return m_data->currentStatus;
@@ -222,6 +194,19 @@ void QskStatusIndicator::setStatus( int status )
     update();
 }
 
+QList<int> QskStatusIndicator::statusList() const
+{
+    /*
+        We should be have a QMap< int, QskGraphic >, so that
+        users can iterate over all entries without having to
+        do extra lookups for each entry. TODO ...
+     */
+    if ( m_data->statusList.isEmpty() && !m_data->map.isEmpty() )
+        m_data->statusList = m_data->map.keys();
+
+    return m_data->statusList;
+}
+
 void QskStatusIndicator::changeEvent( QEvent* event )
 {
     if ( event->type() == QEvent::StyleChange )

src/controls/QskStatusIndicator.h

@@ -38,6 +38,8 @@ class QSK_EXPORT QskStatusIndicator : public QskControl
     int status() const;
     bool hasStatus( int status ) const;
 
+    QList<int> statusList() const;
+
   public Q_SLOTS:
     void setStatus( int status );
 
@@ -48,8 +50,6 @@ class QSK_EXPORT QskStatusIndicator : public QskControl
     void changeEvent( QEvent* ) override;
     void updateLayout() override;
 
-    QSizeF contentsSizeHint( Qt::SizeHint, const QSizeF& ) const override;
-
   private:
     class PrivateData;
     std::unique_ptr< PrivateData > m_data;

src/controls/QskStatusIndicatorSkinlet.cpp

@@ -81,4 +81,41 @@ QSGNode* QskStatusIndicatorSkinlet::updateGraphicNode(
     return node;
 }
 
+QSizeF QskStatusIndicatorSkinlet::sizeHint( const QskSkinnable* skinnable,
+    Qt::SizeHint which, const QSizeF& constraint ) const
+{
+    if ( which != Qt::PreferredSize )
+        return QSizeF();
+
+    const auto indicator = static_cast< const QskStatusIndicator* >( skinnable );
+
+    QSizeF sz;
+
+    for ( const auto status : indicator->statusList() )
+    {
+        const auto graphic = indicator->graphic( status );
+
+        if ( !graphic.isEmpty() )
+        {
+            auto hint = graphic.defaultSize();
+
+            if ( !hint.isEmpty() )
+            {
+                if ( constraint.width() >= 0.0 )
+                {
+                    hint.setHeight( sz.height() * constraint.width() / sz.width() );
+                }
+                else if ( constraint.height() >= 0.0 )
+                {
+                    hint.setWidth( sz.width() * constraint.height() / sz.height() );
+                }
+            }
+
+            sz = sz.expandedTo( hint );
+        }
+    }
+
+    return sz;
+}
+
 #include "moc_QskStatusIndicatorSkinlet.cpp"

src/controls/QskStatusIndicatorSkinlet.h

@@ -28,6 +28,9 @@ class QSK_EXPORT QskStatusIndicatorSkinlet : public QskSkinlet
     QRectF subControlRect( const QskSkinnable*,
         const QRectF&, QskAspect::Subcontrol ) const override;
 
+    QSizeF sizeHint( const QskSkinnable*,
+        Qt::SizeHint, const QSizeF& ) const override;
+
   protected:
     QSGNode* updateSubNode( const QskSkinnable*,
         quint8 nodeRole, QSGNode* ) const override;