59 lines
1.8 KiB
C++
59 lines
1.8 KiB
C++
/*
|
|
==============================================================================
|
|
|
|
This file is part of the JUCE library.
|
|
Copyright (c) 2017 - ROLI Ltd.
|
|
|
|
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 5 End-User License
|
|
Agreement and JUCE 5 Privacy Policy (both updated and effective as of the
|
|
27th April 2017).
|
|
|
|
End User License Agreement: www.juce.com/juce-5-licence
|
|
Privacy Policy: www.juce.com/juce-5-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
|
|
{
|
|
|
|
GlowEffect::GlowEffect() {}
|
|
GlowEffect::~GlowEffect() {}
|
|
|
|
void GlowEffect::setGlowProperties (float newRadius, Colour newColour, Point<int> pos)
|
|
{
|
|
radius = newRadius;
|
|
colour = newColour;
|
|
offset = pos;
|
|
}
|
|
|
|
void GlowEffect::applyEffect (Image& image, Graphics& g, float scaleFactor, float alpha)
|
|
{
|
|
Image temp (image.getFormat(), image.getWidth(), image.getHeight(), true);
|
|
|
|
ImageConvolutionKernel blurKernel (roundToInt (radius * scaleFactor * 2.0f));
|
|
|
|
blurKernel.createGaussianBlur (radius);
|
|
blurKernel.rescaleAllValues (radius);
|
|
|
|
blurKernel.applyToImage (temp, image, image.getBounds());
|
|
|
|
g.setColour (colour.withMultipliedAlpha (alpha));
|
|
g.drawImageAt (temp, offset.x, offset.y, true);
|
|
|
|
g.setOpacity (alpha);
|
|
g.drawImageAt (image, offset.x, offset.y, false);
|
|
}
|
|
|
|
} // namespace juce
|