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

// 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/Actor.h>
#include <kiwano/render/LayerArea.h>
#include <kiwano/render/RenderContext.h>

namespace kiwano
{
KGE_DECLARE_SMART_PTR(Layer);

/**
 * \addtogroup Actors
 * @{
 */

/**
 * \~chinese
 * @brief ͼ<EFBFBD><EFBFBD>
 */
class KGE_API Layer : public Actor
{
public:
    Layer();

    virtual ~Layer();

    /// \~chinese
    /// @brief <20>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>û
    bool IsSwallowEventsEnabled() const;

    /// \~chinese
    /// @brief <20><><EFBFBD><EFBFBD><EFBFBD><EFBFBD>Ϣ<EFBFBD><CFA2>û<EFBFBD><C3BB><EFBFBD><EFBFBD>
    /// @param enabled <20>Ƿ<EFBFBD><C7B7><EFBFBD><EFBFBD><EFBFBD>
    void SetSwallowEvents(bool enabled);

    /// \~chinese
    /// @brief <20><><EFBFBD>òü<C3B2><C3BC><EFBFBD><EFBFBD><EFBFBD>
    /// @param clip_rect <20>ü<EFBFBD><C3BC><EFBFBD><EFBFBD><EFBFBD>
    void SetClipRect(Rect const& clip_rect);

    /// \~chinese
    /// @brief <20><><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC>͸<EFBFBD><CDB8><EFBFBD><EFBFBD>
    /// @param opacity ͸<><CDB8><EFBFBD><EFBFBD>
    void SetOpacity(float opacity) override;

    /// \~chinese
    /// @brief <20><><EFBFBD>ü<EFBFBD><C3BC><EFBFBD><EFBFBD>ɲ<EFBFBD>
    /// @param mask <20>ɲ<EFBFBD><C9B2>ļ<EFBFBD><C4BC><EFBFBD><EFBFBD><EFBFBD>״
    void SetMaskGeometry(Geometry const& mask);

    /// \~chinese
    /// @brief <20><><EFBFBD>ü<EFBFBD><C3BC><EFBFBD><EFBFBD>ɲ<EFBFBD><C9B2>Ķ<EFBFBD>ά<EFBFBD>任
    /// @param transform Ӧ<><D3A6><EFBFBD><EFBFBD><EFBFBD>ɲ<EFBFBD><C9B2>Ķ<EFBFBD>ά<EFBFBD>任
    void SetMaskTransform(Matrix3x2 const& transform);

    /// \~chinese
    /// @brief <20><><EFBFBD><EFBFBD>ͼ<EFBFBD><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    /// @param area ͼ<><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    void SetArea(LayerArea const& area);

    /// \~chinese
    /// @brief <20><>ȡͼ<C8A1><CDBC><EFBFBD><EFBFBD><EFBFBD><EFBFBD>
    LayerArea const& GetArea() const;

    bool DispatchEvent(Event* evt) override;

protected:
    void Render(RenderContext& ctx) override;

    bool CheckVisibility(RenderContext& ctx) const override;

private:
    bool      swallow_;
    LayerArea area_;
};

/** @} */

inline bool Layer::IsSwallowEventsEnabled() const
{
    return swallow_;
}

inline void Layer::SetSwallowEvents(bool enabled)
{
    swallow_ = enabled;
}

inline void Layer::SetArea(LayerArea const& area)
{
    area_ = area;
}

inline LayerArea const& Layer::GetArea() const
{
    return area_;
}
}  // namespace kiwano