shapes playground example added

playground/playground.pro

@@ -6,9 +6,9 @@ SUBDIRS += \
     dialogbuttons \
     invoker \
     inputpanel \
-    images
-
-SUBDIRS += shadows
+    images \
+    shadows \
+    shapes
 
 qtHaveModule(webengine) {
 

playground/shapes/ShapeItem.cpp

@@ -0,0 +1,132 @@
+/******************************************************************************
+ * QSkinny - Copyright (C) 2016 Uwe Rathmann
+ * This file may be used under the terms of the 3-clause BSD License
+ *****************************************************************************/
+
+#include "ShapeItem.h"
+
+#include <QskStrokeNode.h>
+#include <QskShapeNode.h>
+#include <QskSGNode.h>
+
+ShapeItem::ShapeItem( QQuickItem* parent )
+    : QskControl( parent )
+{
+    setMargins( 20 );
+}
+
+ShapeItem::~ShapeItem()
+{
+}
+
+void ShapeItem::setPen( const QPen& pen )
+{
+    if ( pen != m_pen )
+    {
+        m_pen = pen;
+        update();
+    }
+}
+
+QPen ShapeItem::pen() const
+{
+    return m_pen;
+}
+
+void ShapeItem::setFillColor( const QColor& color )
+{
+    if ( color != m_fillColor )
+    {
+        m_fillColor = color;
+        update();
+    }
+}
+
+QColor ShapeItem::fillColor() const
+{
+    return m_fillColor;
+}
+
+void ShapeItem::setPath( const QPainterPath& path )
+{
+    if ( path != m_path )
+    {
+        m_path = path;
+        update();
+    }
+}
+
+QPainterPath ShapeItem::path() const
+{
+    return m_path;
+}
+
+void ShapeItem::updateNode( QSGNode* parentNode )
+{
+    enum NodeRole
+    {
+        ShapeRole,
+        StrokeRole
+    };
+
+    const auto pathRect = m_path.controlPointRect();
+    const auto rect = contentsRect();
+
+#if 1
+    QTransform transform;
+    transform.translate( rect.left(), rect.top() );
+
+    transform.scale( rect.width() / pathRect.width(),
+        rect.height() / pathRect.height() );
+
+    /*
+        The triangulators in the nodes are able to do transformations
+        on the fly. TODO ...
+     */
+    const auto effectivePath = transform.map( m_path );
+#endif
+
+    auto shapeNode = static_cast< QskShapeNode* >(
+        QskSGNode::findChildNode( parentNode, ShapeRole ) );
+
+    if ( pathRect.isEmpty() || rect.isEmpty() )
+    {
+        delete shapeNode;
+    }
+    else
+    {
+        if ( shapeNode == nullptr )
+        {
+            shapeNode = new QskShapeNode;
+            QskSGNode::setNodeRole( shapeNode, ShapeRole );
+        }
+
+        shapeNode->updateNode( effectivePath, m_fillColor );
+
+        if ( shapeNode->parent() != parentNode )
+            parentNode->prependChildNode( shapeNode );
+    }
+
+    auto strokeNode = static_cast< QskStrokeNode* >(
+        QskSGNode::findChildNode( parentNode, StrokeRole ) );
+
+    if ( pathRect.isEmpty() || rect.isEmpty() )
+    {
+        delete strokeNode;
+    }
+    else
+    {
+        if ( strokeNode == nullptr )
+        {
+            strokeNode = new QskStrokeNode;
+            QskSGNode::setNodeRole( strokeNode, StrokeRole );
+        }
+
+        strokeNode->updateNode( effectivePath, m_pen );
+
+        if ( strokeNode->parent() != parentNode )
+            parentNode->appendChildNode( strokeNode );
+    }
+}
+
+#include "moc_ShapeItem.cpp"

playground/shapes/ShapeItem.h

@@ -0,0 +1,36 @@
+/******************************************************************************
+ * QSkinny - Copyright (C) 2016 Uwe Rathmann
+ * This file may be used under the terms of the 3-clause BSD License
+ *****************************************************************************/
+
+#pragma once
+
+#include <QskControl.h>
+#include <QPen>
+#include <QPainterPath>
+
+class ShapeItem : public QskControl
+{
+    Q_OBJECT
+
+  public:
+    ShapeItem( QQuickItem* parent = nullptr );
+    ~ShapeItem() override;
+
+    void setPen( const QPen& );
+    QPen pen() const;
+
+    void setFillColor( const QColor& );
+    QColor fillColor() const;
+
+    void setPath( const QPainterPath& );
+    QPainterPath path() const;
+
+  protected:
+    void updateNode( QSGNode* ) override;
+
+  private:
+    QPen m_pen;
+    QColor m_fillColor;
+    QPainterPath m_path;
+};

playground/shapes/main.cpp

@@ -0,0 +1,46 @@
+/******************************************************************************
+ * QSkinny - Copyright (C) 2016 Uwe Rathmann
+ * This file may be used under the terms of the 3-clause BSD License
+ *****************************************************************************/
+
+#include "ShapeItem.h"
+
+#include <QskObjectCounter.h>
+#include <QskWindow.h>
+
+#include <SkinnyShortcut.h>
+#include <SkinnyShapeFactory.h>
+#include <QGuiApplication>
+
+namespace
+{
+    QPainterPath path( SkinnyShapeFactory::Shape shape )
+    {
+        return SkinnyShapeFactory::shapePath( shape, QSizeF( 50, 50 ) );
+    }
+}
+
+int main( int argc, char* argv[] )
+{
+#ifdef ITEM_STATISTICS
+    QskObjectCounter counter( true );
+#endif
+
+    QGuiApplication app( argc, argv );
+
+    SkinnyShortcut::enable( SkinnyShortcut::AllShortcuts );
+
+    QskWindow window;
+
+    auto shapeItem = new ShapeItem();
+
+    shapeItem->setPath( path( SkinnyShapeFactory::Hexagon ) );
+    shapeItem->setPen( QPen( Qt::darkBlue, 20 ) );
+    shapeItem->setFillColor( Qt::darkYellow );
+
+    window.addItem( shapeItem );
+    window.resize( 600, 600 );
+    window.show();
+
+    return app.exec();
+}

playground/shapes/shapes.pro

@@ -0,0 +1,8 @@
+CONFIG += qskexample
+
+HEADERS += \
+    ShapeItem.h \
+
+SOURCES += \
+    ShapeItem.cpp \
+    main.cpp