juce_DropShadowEffect.h

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/*
  ==============================================================================
 
   This file is part of the JUCE library.
   Copyright (c) 2022 - Raw Material Software Limited
 
   JUCE is an open source library subject to commercial or open-source
   licensing.
 
   By using JUCE, you agree to the terms of both the JUCE 7 End-User License
   Agreement and JUCE Privacy Policy.
 
   End User License Agreement: www.juce.com/juce-7-licence
   Privacy Policy: www.juce.com/juce-privacy-policy
 
   Or: You may also use this code under the terms of the GPL v3 (see
   www.gnu.org/licenses).
 
   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.
 
  ==============================================================================
*/
 
namespace juce
{
 
//==============================================================================
struct JUCE_API  DropShadow
{
    DropShadow() = default;

    DropShadow (Colour shadowColour, int radius, Point<int> offset) noexcept;

    void drawForImage (Graphics& g, const Image& srcImage) const;

    void drawForPath (Graphics& g, const Path& path) const;

    void drawForRectangle (Graphics& g, const Rectangle<int>& area) const;

    Colour colour { 0x90000000 };

    int radius { 4 };

    Point<int> offset;
};
 
//==============================================================================
class JUCE_API  DropShadowEffect  : public ImageEffectFilter
{
public:
    //==============================================================================
    DropShadowEffect();

    ~DropShadowEffect() override;
 
    //==============================================================================
    void setShadowProperties (const DropShadow& newShadow);
 
    //==============================================================================
    void applyEffect (Image& sourceImage, Graphics& destContext, float scaleFactor, float alpha) override;
 
 
private:
    //==============================================================================
    DropShadow shadow;
 
    JUCE_LEAK_DETECTOR (DropShadowEffect)
};
 
} // namespace juce