RenderHints.h

/*
 * AUI Framework - Declarative UI toolkit for modern C++20
 * Copyright (C) 2020-2025 Alex2772 and Contributors
 *
 * SPDX-License-Identifier: MPL-2.0
 *
 * This Source Code Form is subject to the terms of the Mozilla Public
 * License, v. 2.0. If a copy of the MPL was not distributed with this
 * file, You can obtain one at http://mozilla.org/MPL/2.0/.
 */
 
#pragma once
 
#include <glm/glm.hpp>
#include <AUI/Views.h>
#include <AUI/Common/AColor.h>
#include <AUI/GL/gl.h>
#include "IRenderer.h"
 
namespace RenderHints {
   template<aui::invocable Callable>
   static void pushMask(IRenderer& render, Callable&& maskRenderer) {
       render.pushMaskBefore();
       maskRenderer();
       render.pushMaskAfter();
   }

   template<aui::invocable Callable>
   static void popMask(IRenderer& render, Callable&& maskRenderer) {
       render.popMaskBefore();
       maskRenderer();
       render.popMaskAfter();
   }
 
   template<aui::invocable Callable>
   struct PushMask {
   public:
       inline explicit PushMask(IRenderer& render, Callable&& maskRenderer) :
               render(render),
               maskRenderer(std::forward<Callable>(maskRenderer)) {
           pushMask(render, std::forward<Callable>(maskRenderer));
       }
 
       inline ~PushMask() {
           popMask(render, std::forward<Callable>(maskRenderer));
       }
 
   private:
       IRenderer& render;
       Callable maskRenderer;
   };
 
   struct PushMatrix {
   public:
       inline explicit PushMatrix(IRenderer& render) : render(render), stored(render.getTransform()) {
       }
 
       inline ~PushMatrix() {
           render.setTransformForced(stored);
       }
 
   private:
       IRenderer& render;
       glm::mat4 stored;
   };
 
   struct PushColor {
   public:
       inline explicit PushColor(IRenderer& render): render(render), stored(render.getColor()) {
       }
 
       inline ~PushColor() {
           render.setColorForced(stored);
       }
 
   private:
       IRenderer& render;
       AColor stored;
   };
 
   class PushState : PushColor, PushMatrix {
   public:
       inline explicit PushState(IRenderer& render): PushColor(render), PushMatrix(render) {}
   };
}

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