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JUCE/examples/MPETest/Source/ZoneColourPicker.h

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/*
==============================================================================
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.
==============================================================================
*/
#pragma once
class ZoneColourPicker
{
public:
//==============================================================================
ZoneColourPicker()
: legacyModeEnabled (false)
{
}
//==============================================================================
Colour getColourForMidiChannel (int midiChannel) const noexcept
{
if (legacyModeEnabled)
return Colours::white;
if (zoneLayout.getNumZones() == 0)
return Colours::transparentBlack;
MPEZone* zone = zoneLayout.getZoneByChannel (midiChannel);
if (zone == nullptr)
return Colours::transparentBlack;
return getColourForZoneIndex (std::distance (zoneLayout.getZoneByIndex (0), zone));
}
//==============================================================================
Colour getColourForZoneIndex (int zoneIndex) const noexcept
{
if (legacyModeEnabled)
return Colours::white;
if (zoneIndex >= zoneLayout.getNumZones())
return Colours::transparentBlack;
static const std::array<Colour, 8> colours = {
Colours::red,
Colours::yellow,
Colours::blue,
Colours::magenta,
Colours::limegreen,
Colours::cyan,
Colours::orange,
Colours::salmon
};
return colours[zoneIndex % colours.size()];
}
//==============================================================================
void setZoneLayout (MPEZoneLayout layout) noexcept { zoneLayout = layout; }
void setLegacyModeEnabled (bool shouldBeEnabled) noexcept { legacyModeEnabled = shouldBeEnabled; }
private:
//==============================================================================
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ZoneColourPicker)
MPEZoneLayout zoneLayout;
bool legacyModeEnabled;
};