Brush.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/platform/NativeObject.hpp>
#include <kiwano/render/Color.h>
#include <kiwano/render/Texture.h>
 
namespace kiwano
{
 
KGE_DECLARE_SMART_PTR(Brush);
 
struct GradientStop
{
    float offset;  
    Color color;   
 
    GradientStop();
 
    GradientStop(float offset, Color color);
};
 
enum class GradientExtendMode
{
    Clamp,  
    Wrap,   
    Mirror  
};
 
struct LinearGradientStyle
{
    Point                begin;        
    Point                end;          
    Vector<GradientStop> stops;        
    GradientExtendMode   extend_mode;  
 
    LinearGradientStyle();
 
    LinearGradientStyle(const Point& begin, const Point& end, const Vector<GradientStop>& stops,
                        GradientExtendMode extend_mode = GradientExtendMode::Clamp);
};
 
struct RadialGradientStyle
{
    Point                center;       
    Vec2                 offset;       
    Vec2                 radius;       
    Vector<GradientStop> stops;        
    GradientExtendMode   extend_mode;  
 
    RadialGradientStyle();
 
    RadialGradientStyle(const Point& center, const Vec2& offset, const Vec2& radius, const Vector<GradientStop>& stops,
                        GradientExtendMode extend_mode = GradientExtendMode::Clamp);
};
 
class KGE_API Brush : public NativeObject
{
public:
    Brush(const Color& color);
 
    Brush(const LinearGradientStyle& style);
 
    Brush(const RadialGradientStyle& style);
 
    Brush();
 
    void SetColor(const Color& color);
 
    void SetStyle(const LinearGradientStyle& style);
 
    void SetStyle(const RadialGradientStyle& style);
 
    void SetTexture(TexturePtr texture);
 
    void SetTransform(const Transform& transform);
 
    void SetTransform(const Matrix3x2& transform);
 
public:
    enum class Type
    {
        None,
        SolidColor,      
        LinearGradient,  
        RadialGradient,  
        Texture          
    };
 
    Type GetType() const;
 
private:
    Type type_;
};
 
inline Brush::Type Brush::GetType() const
{
    return type_;
}
 
}  // namespace kiwano