Magic_Game/src/kiwano/2d/Layer.cpp

// Copyright (c) 2016-2018 Kiwano - Nomango
// 
// Permission is hereby granted, free of charge, to any person obtaining a copy
// of this software and associated documentation files (the "Software"), to deal
// in the Software without restriction, including without limitation the rights
// to use, copy, modify, merge, publish, distribute, sublicense, and/or sell
// copies of the Software, and to permit persons to whom the Software is
// furnished to do so, subject to the following conditions:
// 
// The above copyright notice and this permission notice shall be included in
// all copies or substantial portions of the Software.
// 
// THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
// IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
// FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
// AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
// LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM,
// OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN
// THE SOFTWARE.

#pragma once
#include <kiwano/2d/Layer.h>
#include <kiwano/renderer/Renderer.h>

namespace kiwano
{
	Layer::Layer()
		: swallow_(false)
	{
		auto handler = Closure(this, &Layer::HandleMessages);

		AddListener(MouseEvents::Down(), handler);
		AddListener(MouseEvents::Up(), handler);
		AddListener(MouseEvents::Move(), handler);
		AddListener(MouseEvents::Wheel(), handler);

		AddListener(KeyEvents::Down(), handler);
		AddListener(KeyEvents::Up(), handler);
		AddListener(KeyEvents::Char(), handler);
	}

	Layer::~Layer()
	{
	}

	void Layer::SetClipRect(Rect const& clip_rect)
	{
		area_.SetAreaRect(clip_rect);
	}

	void Layer::SetOpacity(float opacity)
	{
		// Actor::SetOpacity(opacity);
		area_.SetOpacity(opacity);
	}

	void Layer::SetMaskGeometry(Geometry const& mask)
	{
		area_.SetMaskGeometry(mask);
	}

	void Layer::SetMaskTransform(Matrix3x2 const& transform)
	{
		area_.SetMaskTransform(transform);
	}

	void Layer::Dispatch(Event& evt)
	{
		if (!IsVisible())
			return;

		if (!swallow_)
		{
			ActorPtr prev;
			for (auto child = GetAllChildren().last_item(); child; child = prev)
			{
				prev = child->prev_item();
				child->Dispatch(evt);
			}
		}

		EventDispatcher::Dispatch(evt);
	}

	void Layer::Render(RenderTarget* rt)
	{
		PrepareRender(rt);

		rt->PushLayer(area_);
		Actor::Render(rt);
		rt->PopLayer();
	}

	void Layer::HandleMessages(Event& evt)
	{
		if (evt.IsType<MouseDownEvent>())
		{
			const auto& real_evt = evt.SafeCast<MouseDownEvent>();
			OnMouseButtonDown(real_evt.button, real_evt.pos);
		}
		else if (evt.IsType<MouseUpEvent>())
		{
			const auto& real_evt = evt.SafeCast<MouseUpEvent>();
			OnMouseButtonUp(real_evt.button, real_evt.pos);
		}
		else if (evt.IsType<MouseMoveEvent>())
		{
			const auto& real_evt = evt.SafeCast<MouseMoveEvent>();
			OnMouseMoved(real_evt.pos);
		}
		else if (evt.IsType<MouseWheelEvent>())
		{
			const auto& real_evt = evt.SafeCast<MouseWheelEvent>();
			OnMouseWheel(real_evt.wheel);
		}
		else if (evt.IsType<KeyDownEvent>())
		{
			const auto& real_evt = evt.SafeCast<KeyDownEvent>();
			OnKeyDown(real_evt.code);
		}
		else if (evt.IsType<KeyUpEvent>())
		{
			const auto& real_evt = evt.SafeCast<KeyUpEvent>();
			OnKeyUp(real_evt.code);
		}
		else if (evt.IsType<KeyCharEvent>())
		{
			const auto& real_evt = evt.SafeCast<KeyCharEvent>();
			OnChar(real_evt.value);
		}
	}

}