Element tree

example/CMakeLists.txt

@@ -4,4 +4,6 @@ set(CMAKE_CXX_STANDARD 11)
 
 include_directories(../src)
 
+link_libraries("-framework opengl" SDL2 glew eurekaui)
+
 add_executable(helloworld helloworld.cpp)

example/helloworld.cpp

@@ -2,5 +2,6 @@
 
 int main(int argc,char **argv)
 {
-    EurekaUI::Context con;
-}
+    EurekaUI::Context context;
+    EurekaUI::Element *element = context.root()->createChild<EurekaUI::Element>();
+}

src/context.cpp

@@ -1 +1,10 @@
 #include "eurekaui/context.h"
+
+namespace EurekaUI
+{
+    Context::Context()
+        :mRoot(nullptr)
+    {
+    }
+
+}

src/element.cpp

@@ -0,0 +1,18 @@
+#include "eurekaui/element.h"
+
+namespace EurekaUI
+{
+    Element::Element(Element *parent)
+        :mParent(parent)
+    {
+    }
+
+    Element::~Element()
+    {
+        // Free memory;
+        for(auto child:mChildren)
+        {
+            delete child;
+        }
+    }
+}

src/eurekaui/context.h

@@ -1,5 +1,7 @@
 #ifndef EUREKAUI_CONTEXT_H
 #define EUREKAUI_CONTEXT_H
+#include <vector>
+#include "element.h"
 
 namespace EurekaUI
 {
@@ -9,9 +11,10 @@ namespace EurekaUI
     class Context
     {
     public:
-
+        explicit Context();
+        Element *root(){return &mRoot;};
     private:
-
+        Element mRoot;
     };
 }
 

src/eurekaui/element.h

@@ -0,0 +1,42 @@
+#ifndef EUREKAUI_ELEMENT_H
+#define EUREKAUI_ELEMENT_H
+#include <unordered_map>
+#include <string>
+#include <list>
+
+namespace EurekaUI
+{
+    class Context;
+    /**
+     *
+     */
+    class Element
+    {
+        friend class Context;
+    public:
+        template<class T> Element *createChild()
+        {
+            Element *e = new T(*this);
+            mChildren.push_back(e);
+            return e;
+        };
+
+        template<class T> Element *createChild(const std::string &&Id)
+        {
+            Element *e = createChild<T>();
+            mChildrenById[Id] = e;
+            return e;
+        }
+
+        Element *getParent(){return mParent;}
+    private:
+        explicit Element(Element *parent);
+        ~Element();
+
+        Element *mParent;
+        std::list<Element*> mChildren;
+        std::unordered_map<std::string,Element*> mChildrenById;
+    };
+}
+
+#endif

src/eurekaui/eurekaui.h

@@ -1 +1,2 @@
 #include "context.h"
+#include "element.h"