QskGraphicLabel::panel property added

src/controls/QskGraphicLabel.cpp

@@ -11,6 +11,7 @@
 #include "QskSetup.h"
 #include "QskSkin.h"
 
+QSK_SUBCONTROL( QskGraphicLabel, Panel )
 QSK_SUBCONTROL( QskGraphicLabel, Graphic )
 
 class QskGraphicLabel::PrivateData
@@ -22,6 +23,7 @@ class QskGraphicLabel::PrivateData
         , fillMode( QskGraphicLabel::PreserveAspectFit )
         , mirror( false )
         , isSourceDirty( !sourceUrl.isEmpty() )
+        , hasPanel( false )
     {
     }
 
@@ -33,6 +35,7 @@ class QskGraphicLabel::PrivateData
     uint fillMode : 2;
     bool mirror : 1;
     bool isSourceDirty : 1;
+    bool hasPanel : 1;
 };
 
 QskGraphicLabel::QskGraphicLabel( const QUrl& source, QQuickItem* parent )
@@ -65,6 +68,24 @@ QskGraphicLabel::~QskGraphicLabel()
 {
 }
 
+void QskGraphicLabel::setPanel( bool on )
+{
+    if ( on == m_data->hasPanel )
+        return;
+
+    m_data->hasPanel = on;
+
+    resetImplicitSize();
+    update();
+
+    Q_EMIT panelChanged( on );
+}
+
+bool QskGraphicLabel::hasPanel() const
+{
+    return m_data->hasPanel;
+}
+
 bool QskGraphicLabel::isEmpty() const
 {
     return m_data->graphic.isNull() && m_data->source.isEmpty();

src/controls/QskGraphicLabel.h

@@ -31,10 +31,13 @@ class QSK_EXPORT QskGraphicLabel : public QskControl
     Q_PROPERTY( FillMode fillMode READ fillMode
         WRITE setFillMode NOTIFY fillModeChanged )
 
+    Q_PROPERTY( bool panel READ hasPanel
+        WRITE setPanel NOTIFY panelChanged )
+
     using Inherited = QskControl;
 
   public:
-    QSK_SUBCONTROLS( Graphic )
+    QSK_SUBCONTROLS( Panel, Graphic )
 
     enum FillMode
     {
@@ -84,6 +87,9 @@ class QSK_EXPORT QskGraphicLabel : public QskControl
     void resetGraphicRole();
     int graphicRole() const;
 
+    void setPanel( bool );
+    bool hasPanel() const;
+
   Q_SIGNALS:
     void sourceChanged();
     void mirrorChanged();
@@ -91,6 +97,7 @@ class QSK_EXPORT QskGraphicLabel : public QskControl
     void graphicRoleChanged( int );
     void alignmentChanged( Qt::Alignment );
     void fillModeChanged( FillMode );
+    void panelChanged( bool );
 
   public Q_SLOTS:
     void setGraphic( const QskGraphic& );

src/controls/QskGraphicLabelSkinlet.cpp

@@ -15,7 +15,7 @@
 QskGraphicLabelSkinlet::QskGraphicLabelSkinlet( QskSkin* skin )
     : Inherited( skin )
 {
-    setNodeRoles( { GraphicRole } );
+    setNodeRoles( { PanelRole, GraphicRole } );
 }
 
 QskGraphicLabelSkinlet::~QskGraphicLabelSkinlet() = default;
@@ -23,11 +23,23 @@ QskGraphicLabelSkinlet::~QskGraphicLabelSkinlet() = default;
 QRectF QskGraphicLabelSkinlet::subControlRect( const QskSkinnable* skinnable,
     const QRectF& contentsRect, QskAspect::Subcontrol subControl ) const
 {
-    const auto label = static_cast< const QskGraphicLabel* >( skinnable );
-
-    if ( subControl == QskGraphicLabel::Graphic )
+    if ( subControl == QskGraphicLabel::Panel )
     {
-        return graphicRect( label, contentsRect );
+        return contentsRect;
+    }
+    else if ( subControl == QskGraphicLabel::Graphic )
+    {
+        auto innerRect = contentsRect;
+
+        const auto label = static_cast< const QskGraphicLabel* >( skinnable );
+
+        if ( label->hasPanel() )
+        {
+            innerRect = label->subControlContentsRect(
+                innerRect, QskGraphicLabel::Panel );
+        }
+
+        return graphicRect( label, innerRect );
     }
 
     return Inherited::subControlRect( skinnable, contentsRect, subControl );
@@ -40,6 +52,13 @@ QSGNode* QskGraphicLabelSkinlet::updateSubNode(
 
     switch ( nodeRole )
     {
+        case PanelRole:
+        {
+            if ( !label->hasPanel() )
+                return nullptr;
+
+            return updateBoxNode( label, node, QskGraphicLabel::Panel );
+        }
         case GraphicRole:
         {
             return updateGraphicNode( label, node );
@@ -52,6 +71,8 @@ QSGNode* QskGraphicLabelSkinlet::updateSubNode(
 QRect QskGraphicLabelSkinlet::graphicRect(
     const QskGraphicLabel* label, const QRectF& contentsRect ) const
 {
+    using Q = QskGraphicLabel;
+
     // textures are in integers, to avoid useless recalculations
     // that finally will be rounded anyway, we calculate in integers
 
@@ -59,18 +80,18 @@ QRect QskGraphicLabelSkinlet::graphicRect(
 
     const QRect graphicRect = contentsRect.toAlignedRect();
 
-    if ( fillMode == QskGraphicLabel::Stretch )
+    if ( fillMode == Q::Stretch )
     {
         return graphicRect;
     }
 
     QSizeF sz = label->effectiveSourceSize();
 
-    if ( fillMode == QskGraphicLabel::PreserveAspectFit )
+    if ( fillMode == Q::PreserveAspectFit )
     {
         sz.scale( graphicRect.size(), Qt::KeepAspectRatio );
     }
-    else if ( fillMode == QskGraphicLabel::PreserveAspectCrop )
+    else if ( fillMode == Q::PreserveAspectCrop )
     {
         sz.scale( graphicRect.size(), Qt::KeepAspectRatioByExpanding );
     }
@@ -82,14 +103,16 @@ QRect QskGraphicLabelSkinlet::graphicRect(
 QSGNode* QskGraphicLabelSkinlet::updateGraphicNode(
     const QskGraphicLabel* label, QSGNode* node ) const
 {
+    using Q = QskGraphicLabel;
+
     const auto colorFilter = label->graphicFilter();
-    const auto rect = label->subControlRect( QskGraphicLabel::Graphic );
+    const auto rect = label->subControlRect( Q::Graphic );
 
     Qt::Orientations mirrored;
     if ( label->mirror() )
         mirrored = Qt::Horizontal;
 
-    if ( label->fillMode() == QskGraphicLabel::Stretch )
+    if ( label->fillMode() == Q::Stretch )
     {
         node = QskSkinlet::updateGraphicNode( label, node,
             label->graphic(), colorFilter, rect, mirrored );
@@ -106,28 +129,57 @@ QSGNode* QskGraphicLabelSkinlet::updateGraphicNode(
 QSizeF QskGraphicLabelSkinlet::sizeHint( const QskSkinnable* skinnable,
     Qt::SizeHint which, const QSizeF& constraint ) const
 {
+    using Q = QskGraphicLabel;
+
     if ( which != Qt::PreferredSize )
         return QSizeF();
 
+    const bool hasConstraint =
+        ( constraint.width() >= 0.0 ) || ( constraint.height() >= 0.0 );
+
     const auto label = static_cast< const QskGraphicLabel* >( skinnable );
+    const auto sourceSize = label->effectiveSourceSize();
 
-    auto sz = label->effectiveSourceSize();
+    auto hint = sourceSize;
 
-    if ( !sz.isEmpty() )
+    if ( hasConstraint && !sourceSize.isEmpty() )
     {
+        auto innerConstraint = constraint;
+
+        if ( label->hasPanel() )
+        {
+            constexpr qreal max = std::numeric_limits< int >::max();
+
+            QRectF r( 0.0, 0.0, max, max );
+            
+            if ( constraint.width() >= 0.0 )
+                r.setWidth( constraint.width() );
+            else
+                r.setHeight( constraint.height() );
+
+            innerConstraint = label->subControlContentsRect( r, Q::Panel ).size();
+        }
+
+        const qreal aspectRatio = sourceSize.width() / sourceSize.height();
+
         if ( constraint.width() >= 0.0 )
-        {
-            sz.setHeight( sz.height() * constraint.width() / sz.width() );
-            sz.setWidth( -1.0 );
-        }
-        else if ( constraint.height() >= 0.0 )
-        {
-            sz.setWidth( sz.width() * constraint.height() / sz.height() );
-            sz.setHeight( -1.0 );
-        }
+            hint.setHeight( innerConstraint.width() / aspectRatio );
+        else 
+            hint.setWidth( innerConstraint.height() * aspectRatio );
     }
 
-    return sz;
+    hint = hint.expandedTo( label->strutSizeHint( Q::Graphic ) );
+
+    if ( label->hasPanel() )
+    {
+        hint = label->outerBoxSize( Q::Panel, hint );
+        hint = hint.expandedTo( label->strutSizeHint( Q::Panel ) );
+    }
+
+    if ( hasConstraint )
+        hint = hintWithoutConstraint( hint, constraint );
+
+    return hint;
 }
 
 #include "moc_QskGraphicLabelSkinlet.cpp"

src/controls/QskGraphicLabelSkinlet.h

@@ -19,7 +19,7 @@ class QSK_EXPORT QskGraphicLabelSkinlet : public QskSkinlet
   public:
     enum NodeRole
     {
-        GraphicRole
+        PanelRole, GraphicRole
     };
 
     Q_INVOKABLE QskGraphicLabelSkinlet( QskSkin* = nullptr );

src/controls/QskSkinlet.cpp

@@ -448,4 +448,22 @@ QSGNode* QskSkinlet::updateGraphicNode(
     return qskUpdateGraphicNode( skinnable, node, graphic, colorFilter, rect, mirrored );
 }
 
+QSizeF QskSkinlet::hintWithoutConstraint(
+    const QSizeF& hint, const QSizeF& constraint ) const
+{
+    /*
+        This method is useful in situations, where a hint has been calculated
+        from a constraint and we want to return the calculated part only 
+     */
+    QSizeF h;
+
+    if ( constraint.width() < 0.0 )
+        h.setWidth( hint.width() );
+
+    if ( constraint.height() < 0.0 )
+        h.setHeight( hint.height() );
+
+    return h;
+}
+
 #include "moc_QskSkinlet.cpp"

src/controls/QskSkinlet.h

@@ -98,6 +98,9 @@ class QSK_EXPORT QskSkinlet
     void replaceChildNode( quint8 nodeRole, QSGNode* parentNode,
         QSGNode* oldNode, QSGNode* newNode ) const;
 
+     QSizeF hintWithoutConstraint(
+        const QSizeF& hint, const QSizeF& constraint ) const;
+
   private:
     class PrivateData;
     std::unique_ptr< PrivateData > m_data;

src/controls/QskTextLabel.h

@@ -30,7 +30,7 @@ class QSK_EXPORT QskTextLabel : public QskControl
         WRITE setAlignment NOTIFY alignmentChanged )
 
     Q_PROPERTY( bool panel READ hasPanel
-        WRITE setPanel NOTIFY panelChanged FINAL )
+        WRITE setPanel NOTIFY panelChanged )
 
     using Inherited = QskControl;
 

src/controls/QskTextLabelSkinlet.cpp

@@ -32,7 +32,10 @@ QRectF QskTextLabelSkinlet::subControlRect( const QskSkinnable* skinnable,
         const auto label = static_cast< const QskTextLabel* >( skinnable );
 
         if ( label->hasPanel() )
-            return label->subControlContentsRect( contentsRect, QskTextLabel::Panel );
+        {
+            return label->subControlContentsRect(
+                contentsRect, QskTextLabel::Panel );
+        }
 
         return contentsRect;
     }