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/*
==============================================================================
This file is part of the IEM plug-in suite.
Author: Daniel Rudrich
Copyright (c) 2017 - Institute of Electronic Music and Acoustics (IEM)
https://iem.at
The IEM plug-in suite is free software: you can redistribute it and/or modify
it under the terms of the GNU General Public License as published by
the Free Software Foundation, either version 3 of the License, or
(at your option) any later version.
The IEM plug-in suite is distributed in the hope that it will be useful,
but WITHOUT ANY WARRANTY; without even the implied warranty of
MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
GNU General Public License for more details.
You should have received a copy of the GNU General Public License
along with this software. If not, see <https://www.gnu.org/licenses/>.
==============================================================================
*/
#pragma once
#include "../../resources/heatmap.h"
#include "../../resources/viridis_cropped.h"
#include "../JuceLibraryCode/JuceHeader.h"
//==============================================================================
/*
*/
class VisualizerColormap : public juce::Component
{
public:
VisualizerColormap()
{
// In your constructor, you should add any child components, and
// initialise any special settings that your component needs.
}
~VisualizerColormap() {}
void paint (juce::Graphics& g) override
{
juce::Colour colormapData[256];
if (usePerceptualColormap)
for (int i = 0; i < 256; ++i)
{
const float alpha = juce::jlimit (0.0f, 1.0f, (float) i / 50.0f);
colormapData[i] = juce::Colour::fromFloatRGBA (viridis_cropped[i][0],
viridis_cropped[i][1],
viridis_cropped[i][2],
alpha);
}
else
for (int i = 0; i < 256; ++i)
{
colormapData[i] = juce::Colour::fromFloatRGBA (heatmap[i][0],
heatmap[i][1],
heatmap[i][2],
heatmap[i][3]);
}
juce::Rectangle<int> colormapArea (getLocalBounds());
colormapArea.removeFromTop (12);
colormapArea.removeFromBottom (6);
colormapArea.removeFromRight (25);
juce::ColourGradient gradient;
gradient.point1 = colormapArea.getTopLeft().toFloat();
gradient.point2 = colormapArea.getBottomLeft().toFloat();
for (int i = 0; i < 256; ++i)
gradient.addColour (1.0f - i * 1.0f / 256, colormapData[i]);
juce::Path path;
path.addRectangle (colormapArea);
g.setGradientFill (gradient);
g.fillPath (path);
g.setColour (juce::Colours::white);
int width = colormapArea.getWidth();
auto currentFont =
juce::FontOptions (getLookAndFeel().getTypefaceForFont (juce::FontOptions (12.0f, 1)));
g.setFont (currentFont);
g.drawText ("dB", 25, 0, width, 12, juce::Justification::centred);
currentFont =
juce::FontOptions (getLookAndFeel().getTypefaceForFont (juce::FontOptions (12.0f, 0)))
.withHeight (12.0f);
g.setFont (currentFont);
const float yStep = (float) colormapArea.getHeight() / 7;
g.drawText (juce::String (maxLevel, 1), 25, 12, width, 12, juce::Justification::centred);
for (int i = 1; i < 8; ++i)
{
g.drawText (juce::String (maxLevel - range / 7.0 * i, 1),
25,
6 + yStep * i,
width,
12,
juce::Justification::centred);
}
}
void setMaxLevel (const float newMaxLevel)
{
maxLevel = newMaxLevel;
repaint();
}
void setRange (const float newRange)
{
range = newRange;
repaint();
}
void mouseDown (const juce::MouseEvent& event) override
{
usePerceptualColormap = ! usePerceptualColormap;
repaint();
}
void setColormap (bool shouldUsePerceptualColormap)
{
if (usePerceptualColormap != shouldUsePerceptualColormap)
{
usePerceptualColormap = shouldUsePerceptualColormap;
repaint();
}
}
bool getColormap() { return usePerceptualColormap; }
void resized() override {}
private:
bool usePerceptualColormap = true;
float maxLevel = 0.0f;
float range = 35.0f;
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (VisualizerColormap)
};
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