add flex node & demo

doric-Qt/example/doric/shader/DoricFlexNode.cpp

@@ -0,0 +1,33 @@
+#include "DoricFlexNode.h"
+
+QQuickItem *DoricFlexNode::build() {
+  QQmlComponent component(getContext()->getQmlEngine());
+
+  const QUrl url(QStringLiteral("qrc:/doric/qml/flex.qml"));
+  component.loadUrl(url);
+
+  if (component.isError()) {
+    qCritical() << component.errorString();
+  }
+
+  QQuickItem *item = qobject_cast<QQuickItem *>(component.create());
+  this->createLayouts(item);
+
+  item->setProperty("wrapper", QString::number((qint64)this));
+  return item;
+}
+
+void DoricFlexNode::blend(QQuickItem *view, QString name, QJsonValue prop) {
+  if (name == "flexConfig") {
+
+  } else {
+    DoricGroupNode::blend(view, name, prop);
+  }
+}
+
+void DoricFlexNode::blendSubNode(DoricViewNode *subNode,
+                                 QJsonValue flexConfig) {}
+
+void DoricFlexNode::blendYoga(YGLayout *yoga, QJsonValue flexConfig) {}
+
+void DoricFlexNode::blendYoga(YGLayout *yoga, QString name, QJsonValue prop) {}