JUCE/modules/juce_gui_basics/keyboard/juce_ModifierKeys.cpp

/*
  ==============================================================================

   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.

  ==============================================================================
*/

ModifierKeys::ModifierKeys() noexcept  : flags (0) {}
ModifierKeys::ModifierKeys (int rawFlags) noexcept  : flags (rawFlags) {}
ModifierKeys::ModifierKeys (const ModifierKeys& other) noexcept  : flags (other.flags) {}

ModifierKeys& ModifierKeys::operator= (const ModifierKeys other) noexcept
{
    flags = other.flags;
    return *this;
}

ModifierKeys ModifierKeys::currentModifiers;

ModifierKeys ModifierKeys::getCurrentModifiers() noexcept
{
    return currentModifiers;
}

int ModifierKeys::getNumMouseButtonsDown() const noexcept
{
    int num = 0;

    if (isLeftButtonDown())     ++num;
    if (isRightButtonDown())    ++num;
    if (isMiddleButtonDown())   ++num;

    return num;
}