From bcdc5c98b356d926939b226a3962d97763295d3b Mon Sep 17 00:00:00 2001
From: Dan Goodliffe <dan@randomdan.homeip.net>
Date: Sat, 18 Dec 2021 19:28:54 +0000
Subject: Window handles UIComponent rendering

---
 ui/gameMainWindow.cpp |  3 +--
 ui/gameMainWindow.h   |  1 -
 ui/uiComponent.h      | 12 ++++++++++++
 ui/window.cpp         | 11 ++++++++++-
 ui/window.h           |  2 +-
 5 files changed, 24 insertions(+), 5 deletions(-)
 create mode 100644 ui/uiComponent.h

diff --git a/ui/gameMainWindow.cpp b/ui/gameMainWindow.cpp
index b41fc56..cd9d3e4 100644
--- a/ui/gameMainWindow.cpp
+++ b/ui/gameMainWindow.cpp
@@ -34,6 +34,5 @@ GameMainWindow::render(const GameState * gameState) const
 {
 	glEnable(GL_DEPTH_TEST);
 	gameState->world.apply<Renderable>(&Renderable::render, shader);
-	glDisable(GL_DEPTH_TEST);
-	// do ui bits
+	Window::render(gameState);
 }
diff --git a/ui/gameMainWindow.h b/ui/gameMainWindow.h
index 36f8e80..8b88f11 100644
--- a/ui/gameMainWindow.h
+++ b/ui/gameMainWindow.h
@@ -4,7 +4,6 @@
 #include "chronology.hpp"
 #include "gfx/gl/camera.h"
 #include "gfx/gl/shader.h"
-#include "gfx/gl/uiShader.h"
 #include "window.h"
 #include <cstddef>
 
diff --git a/ui/uiComponent.h b/ui/uiComponent.h
new file mode 100644
index 0000000..cd21de3
--- /dev/null
+++ b/ui/uiComponent.h
@@ -0,0 +1,12 @@
+#ifndef UICOMPONENT_H
+#define UICOMPONENT_H
+
+class UIShader;
+
+class UIComponent {
+public:
+	virtual ~UIComponent() = default;
+	virtual void render(const UIShader &) const = 0;
+};
+
+#endif
diff --git a/ui/window.cpp b/ui/window.cpp
index d9e0467..cd4a202 100644
--- a/ui/window.cpp
+++ b/ui/window.cpp
@@ -1,5 +1,6 @@
 #include "window.h"
-#include "ui/inputHandler.h"
+#include "inputHandler.h"
+#include "uiComponent.h"
 #include <GL/glew.h>
 #include <optional>
 #include <stdexcept>
@@ -73,3 +74,11 @@ Window::refresh(const GameState * gameState) const
 
 	swapBuffers();
 }
+
+void
+Window::render(const GameState *) const
+{
+	uiShader.use();
+	glDisable(GL_DEPTH_TEST);
+	inputStack.apply<UIComponent>(&UIComponent::render, uiShader);
+}
diff --git a/ui/window.h b/ui/window.h
index 97a0253..9c6d023 100644
--- a/ui/window.h
+++ b/ui/window.h
@@ -30,7 +30,7 @@ public:
 
 protected:
 	SDL_GLContext glContext() const;
-	virtual void render(const GameState *) const = 0;
+	virtual void render(const GameState *) const;
 
 	using SDL_WindowPtr = wrapped_ptrt<SDL_Window, SDL_CreateWindow, SDL_DestroyWindow>;
 	SDL_WindowPtr m_window;
-- 
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