Button.h

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// Button.h
//
// Copyright (c) 2013-2016 Michael Imamura.
//
// Licensed under GrokkSoft HoverRace SourceCode License v1.0(the "License");
// you may not use this file except in compliance with the License.
//
// A copy of the license should have been attached to the package from which
// you have taken this file. If you can not find the license you can not use
// this file.
//
//
// The author makes no representations about the suitability of
// this software for any purpose.  It is provided "as is" "AS IS",
// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
// implied.
//
// See the License for the specific language governing permissions
// and limitations under the License.

#pragma once

#include "Res.h"

#include "ClickRegion.h"
#include "FillBox.h"

#if defined(_WIN32) && defined(HR_ENGINE_SHARED)
#   ifdef MR_ENGINE
#       define MR_DllDeclare   __declspec( dllexport )
#   else
#       define MR_DllDeclare   __declspec( dllimport )
#   endif
#else
#   define MR_DllDeclare
#endif

namespace HoverRace {
    namespace Display {
        class BaseContainer;
        class Display;
        class Label;
        class Picture;
        class Texture;
    }
}

namespace HoverRace {
namespace Display {

class MR_DllDeclare Button : public ClickRegion
{
    using SUPER = ClickRegion;

public:
    struct Props
    {
        enum
        {
            TEXT = SUPER::Props::NEXT_,
            ICON,
            IMAGE,
            CONTENTS,
            NEXT_,  
        };
    };

public:
    Button(Display &display, const std::string &text,
        uiLayoutFlags_t layoutFlags = 0);
    Button(Display &display, const Vec2 &size, const std::string &text,
        uiLayoutFlags_t layoutFlags = 0);
    virtual ~Button();

private:
    void Init(const std::string &text);

public:
    void AttachView(Display &disp) override { AttachViewDynamic(disp, this); }

public:
    bool OnNavigate(const Control::Nav &nav) override;

public:
    const std::string &GetText() const;
    void SetText(const std::string &text);

    Alignment getTextAlignment() const;
    void SetTextAlignment(Alignment textAlignment);

    Box *GetIcon() const { return icon.get(); }
    std::shared_ptr<Box> ShareIcon() const { return icon; }
    void SetIcon(std::shared_ptr<Box> icon);

    std::shared_ptr<Res<Texture>> ShareTexture() const;
    void SetTexture(std::shared_ptr<Res<Texture>> image);

    void SetContents(std::shared_ptr<BaseContainer> contents);

    Box *GetBackgroundChild() const { return background.get(); }
    Label *GetLabelChild() const { return label.get(); }
    Box *GetIconChild() const { return icon.get(); }
    BaseContainer *GetContentsChild() const { return contents.get(); }
    Picture *GetPictureChild() const { return picture.get(); }
    FillBox *GetHighlightChild() const { return highlight.get(); }

    void SetFixedWidth(double width);

protected:
    void Layout() override;

public:
    Vec3 Measure() override;
    void FireModelUpdate(int prop) override;

private:
    std::unique_ptr<FillBox> background;
    std::unique_ptr<Label> label;
    std::shared_ptr<Box> icon;
    std::shared_ptr<BaseContainer> contents;
    std::unique_ptr<Picture> picture;
    std::unique_ptr<FillBox> highlight;
    boost::optional<double> fixedWidth;
    double paddingTop, paddingRight, paddingBottom, paddingLeft, iconGap;
};

}  // namespace Display
}  // namespace HoverRace

#undef MR_DllDeclare