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JUCE/examples/MPETest/Source/ZoneColourPicker.h

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C++

/*
==============================================================================
This file is part of the JUCE library.
Copyright (c) 2015 - ROLI Ltd.
Permission is granted to use this software under the terms of either:
a) the GPL v2 (or any later version)
b) the Affero GPL v3
Details of these licenses can be found at: www.gnu.org/licenses
JUCE 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.
------------------------------------------------------------------------------
To release a closed-source product which uses JUCE, commercial licenses are
available: visit www.juce.com for more information.
==============================================================================
*/
#ifndef ZONECOLOURPICKER_H_INCLUDED
#define ZONECOLOURPICKER_H_INCLUDED
class ZoneColourPicker
{
public:
//==========================================================================
ZoneColourPicker()
: omniModeEnabled (false)
{
}
//==========================================================================
Colour getColourForMidiChannel (int midiChannel) const noexcept
{
if (omniModeEnabled)
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 (omniModeEnabled)
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 setOmniModeEnabled (bool shouldBeEnabled) noexcept { omniModeEnabled = shouldBeEnabled; }
private:
//==========================================================================
JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (ZoneColourPicker)
MPEZoneLayout zoneLayout;
bool omniModeEnabled;
};
#endif // ZONECOLOURPICKER_H_INCLUDED