model window in own class (pImpl)

hw3d/Mesh.cpp

 #include "Mesh.h"
 #include "imgui/imgui.h"
 
+namespace dx = DirectX;
+
 // Mesh
 Mesh::Mesh( Graphics& gfx,std::vector<std::unique_ptr<Bind::Bindable>> bindPtrs )
 {
@@ -63,14 +65,14 @@ void Node::AddChild( std::unique_ptr<Node> pChild ) noxnd
 	childPtrs.push_back( std::move( pChild ) );
 }
 
-void Node::RenderTree() const noexcept
+void Node::ShowTree() const noexcept
 {
 	// if tree node expanded, recursively render all children
 	if( ImGui::TreeNode( name.c_str() ) )
 	{
 		for( const auto& pChild : childPtrs )
 		{
-			pChild->RenderTree();
+			pChild->ShowTree();
 		}
 		ImGui::TreePop();
 	}
@@ -78,7 +80,50 @@ void Node::RenderTree() const noexcept
 
 
 // Model
+class ModelWindow // pImpl idiom, only defined in this .cpp
+{
+public:
+	void Show( const char* windowName,const Node& root ) noexcept
+	{
+		// window name defaults to "Model"
+		windowName = windowName ? windowName : "Model";
+		if( ImGui::Begin( windowName ) )
+		{
+			ImGui::Columns( 2,nullptr,true );
+			root.ShowTree();
+
+			ImGui::NextColumn();
+			ImGui::Text( "Orientation" );
+			ImGui::SliderAngle( "Roll",&pos.roll,-180.0f,180.0f );
+			ImGui::SliderAngle( "Pitch",&pos.pitch,-180.0f,180.0f );
+			ImGui::SliderAngle( "Yaw",&pos.yaw,-180.0f,180.0f );
+			ImGui::Text( "Position" );
+			ImGui::SliderFloat( "X",&pos.x,-20.0f,20.0f );
+			ImGui::SliderFloat( "Y",&pos.y,-20.0f,20.0f );
+			ImGui::SliderFloat( "Z",&pos.z,-20.0f,20.0f );
+		}
+		ImGui::End();
+	}
+	dx::XMMATRIX GetTransform() const noexcept
+	{
+		return dx::XMMatrixRotationRollPitchYaw( pos.roll,pos.pitch,pos.yaw ) *
+			dx::XMMatrixTranslation( pos.x,pos.y,pos.z );
+	}
+private:
+	struct
+	{
+		float roll = 0.0f;
+		float pitch = 0.0f;
+		float yaw = 0.0f;
+		float x = 0.0f;
+		float y = 0.0f;
+		float z = 0.0f;
+	} pos;
+};
+
 Model::Model( Graphics& gfx,const std::string fileName )
+	:
+	pWindow( std::make_unique<ModelWindow>() )
 {
 	Assimp::Importer imp;
 	const auto pScene = imp.ReadFile( fileName.c_str(),
@@ -96,32 +141,17 @@ Model::Model( Graphics& gfx,const std::string fileName )
 
 void Model::Draw( Graphics& gfx ) const noxnd
 {
-	const auto transform = DirectX::XMMatrixRotationRollPitchYaw( pos.roll,pos.pitch,pos.yaw ) *
-		DirectX::XMMatrixTranslation( pos.x,pos.y,pos.z );
-	pRoot->Draw( gfx,transform );
+	pRoot->Draw( gfx,pWindow->GetTransform() );
 }
 
 void Model::ShowWindow( const char* windowName ) noexcept
 {
-	windowName = windowName ? windowName : "Model";
-	if( ImGui::Begin( windowName ) )
-	{
-		ImGui::Columns( 2,nullptr,true );
-		pRoot->RenderTree();
-
-		ImGui::NextColumn();
-		ImGui::Text( "Orientation" );
-		ImGui::SliderAngle( "Roll",&pos.roll,-180.0f,180.0f );
-		ImGui::SliderAngle( "Pitch",&pos.pitch,-180.0f,180.0f );
-		ImGui::SliderAngle( "Yaw",&pos.yaw,-180.0f,180.0f );
-		ImGui::Text( "Position" );
-		ImGui::SliderFloat( "X",&pos.x,-20.0f,20.0f );
-		ImGui::SliderFloat( "Y",&pos.y,-20.0f,20.0f );
-		ImGui::SliderFloat( "Z",&pos.z,-20.0f,20.0f );
-	}
-	ImGui::End();
+	pWindow->Show( windowName,*pRoot );
 }
 
+Model::~Model() noexcept
+{}
+
 std::unique_ptr<Mesh> Model::ParseMesh( Graphics& gfx,const aiMesh& mesh )
 {
 	namespace dx = DirectX;

hw3d/Mesh.h

@@ -23,7 +23,7 @@ class Node
 public:
 	Node( const std::string& name,std::vector<Mesh*> meshPtrs,const DirectX::XMMATRIX& transform ) noxnd;
 	void Draw( Graphics& gfx,DirectX::FXMMATRIX accumulatedTransform ) const noxnd;
-	void RenderTree() const noexcept;
+	void ShowTree() const noexcept;
 private:
 	void AddChild( std::unique_ptr<Node> pChild ) noxnd;
 private:
@@ -39,19 +39,12 @@ public:
 	Model( Graphics& gfx,const std::string fileName );
 	void Draw( Graphics& gfx ) const noxnd;
 	void ShowWindow( const char* windowName = nullptr ) noexcept;
+	~Model() noexcept;
 private:
 	static std::unique_ptr<Mesh> ParseMesh( Graphics& gfx,const aiMesh& mesh );
 	std::unique_ptr<Node> ParseNode( const aiNode& node ) noexcept;
 private:
 	std::unique_ptr<Node> pRoot;
 	std::vector<std::unique_ptr<Mesh>> meshPtrs;
-	struct
-	{
-		float roll = 0.0f;
-		float pitch = 0.0f;
-		float yaw = 0.0f;
-		float x = 0.0f;
-		float y = 0.0f;
-		float z = 0.0f;
-	} pos;
+	std::unique_ptr<class ModelWindow> pWindow;
 };
\ No newline at end of file