78 lines
2.4 KiB
C++
78 lines
2.4 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE library.
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Copyright (c) 2017 - ROLI Ltd.
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JUCE is an open source library subject to commercial or open-source
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licensing.
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By using JUCE, you agree to the terms of both the JUCE 5 End-User License
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Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
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27th April 2017).
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End User License Agreement: www.juce.com/juce-5-licence
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Privacy Policy: www.juce.com/juce-5-privacy-policy
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Or: You may also use this code under the terms of the GPL v3 (see
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www.gnu.org/licenses).
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JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
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EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
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DISCLAIMED.
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==============================================================================
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*/
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namespace juce
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{
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//==============================================================================
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/**
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A component effect that adds a coloured blur around the component's contents.
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(This will only work on non-opaque components).
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@see Component::setComponentEffect, DropShadowEffect
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@tags{Graphics}
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*/
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class JUCE_API GlowEffect : public ImageEffectFilter
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{
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public:
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//==============================================================================
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/** Creates a default 'glow' effect.
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To customise its appearance, use the setGlowProperties() method.
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*/
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GlowEffect();
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/** Destructor. */
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~GlowEffect() override;
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//==============================================================================
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/** Sets the glow's radius and colour.
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The radius is how large the blur should be, and the colour is
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used to render it (for a less intense glow, lower the colour's
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opacity).
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*/
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void setGlowProperties (float newRadius,
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Colour newColour,
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Point<int> offset = {});
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//==============================================================================
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/** @internal */
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void applyEffect (Image&, Graphics&, float scaleFactor, float alpha) override;
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private:
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//==============================================================================
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float radius = 2.0f;
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Colour colour { Colours::white };
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Point<int> offset;
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JUCE_LEAK_DETECTOR (GlowEffect)
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};
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} // namespace juce
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