fix macOS build (following Projucer changes made in Windows, which removed /Applications/JUCE/modules from its headers). move JUCE headers under source control, so that Windows and macOS can both build against same version of JUCE. remove AUv3 target (I think it's an iOS thing, so it will never work with this macOS fluidsynth dylib).

modules/juce_gui_basics/lookandfeel/juce_LookAndFeel.cpp

@@ -0,0 +1,192 @@
+/*
+  ==============================================================================
+
+   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
+{
+
+static Typeface::Ptr getTypefaceForFontFromLookAndFeel (const Font& font)
+{
+    return LookAndFeel::getDefaultLookAndFeel().getTypefaceForFont (font);
+}
+
+typedef Typeface::Ptr (*GetTypefaceForFont) (const Font&);
+extern GetTypefaceForFont juce_getTypefaceForFont;
+
+//==============================================================================
+LookAndFeel::LookAndFeel()
+{
+    /* if this fails it means you're trying to create a LookAndFeel object before
+       the static Colours have been initialised. That ain't gonna work. It probably
+       means that you're using a static LookAndFeel object and that your compiler has
+       decided to intialise it before the Colours class.
+    */
+    jassert (Colours::white == Colour (0xffffffff));
+
+    juce_getTypefaceForFont = getTypefaceForFontFromLookAndFeel;
+}
+
+LookAndFeel::~LookAndFeel()
+{
+    /* This assertion is triggered if you try to delete a LookAndFeel object while something
+       is still using it!
+
+       Reasons may be:
+         - it's still being used as the default LookAndFeel; or
+         - it's set as a Component's current lookandfeel; or
+         - there's a WeakReference to it somewhere else in your code
+
+       Generally the fix for this will be to make sure you call
+       Component::setLookandFeel (nullptr) on any components that were still using
+       it before you delete it, or call LookAndFeel::setDefaultLookAndFeel (nullptr)
+       if you had set it up to be the default one. This assertion can also be avoided by
+       declaring your LookAndFeel object before any of the Components that use it as
+       the Components will be destroyed before the LookAndFeel.
+
+       Deleting a LookAndFeel is unlikely to cause a crash since most things will use a
+       safe WeakReference to it, but it could cause some unexpected graphical behaviour,
+       so it's advisable to clear up any references before destroying them!
+    */
+    jassert (masterReference.getNumActiveWeakReferences() == 0
+              || (masterReference.getNumActiveWeakReferences() == 1
+                   && this == &getDefaultLookAndFeel()));
+}
+
+//==============================================================================
+Colour LookAndFeel::findColour (int colourID) const noexcept
+{
+    const ColourSetting c = { colourID, Colour() };
+    auto index = colours.indexOf (c);
+
+    if (index >= 0)
+        return colours.getReference (index).colour;
+
+    jassertfalse;
+    return Colours::black;
+}
+
+void LookAndFeel::setColour (int colourID, Colour newColour) noexcept
+{
+    const ColourSetting c = { colourID, newColour };
+    auto index = colours.indexOf (c);
+
+    if (index >= 0)
+        colours.getReference (index).colour = newColour;
+    else
+        colours.add (c);
+}
+
+bool LookAndFeel::isColourSpecified (const int colourID) const noexcept
+{
+    const ColourSetting c = { colourID, Colour() };
+    return colours.contains (c);
+}
+
+//==============================================================================
+LookAndFeel& LookAndFeel::getDefaultLookAndFeel() noexcept
+{
+    return Desktop::getInstance().getDefaultLookAndFeel();
+}
+
+void LookAndFeel::setDefaultLookAndFeel (LookAndFeel* newDefaultLookAndFeel) noexcept
+{
+    Desktop::getInstance().setDefaultLookAndFeel (newDefaultLookAndFeel);
+}
+
+//==============================================================================
+Typeface::Ptr LookAndFeel::getTypefaceForFont (const Font& font)
+{
+    if (font.getTypefaceName() == Font::getDefaultSansSerifFontName())
+    {
+        if (defaultTypeface != nullptr)
+            return defaultTypeface;
+
+        if (defaultSans.isNotEmpty())
+        {
+            Font f (font);
+            f.setTypefaceName (defaultSans);
+            return Typeface::createSystemTypefaceFor (f);
+        }
+    }
+
+    return Font::getDefaultTypefaceForFont (font);
+}
+
+void LookAndFeel::setDefaultSansSerifTypeface (Typeface::Ptr newDefaultTypeface)
+{
+    if (defaultTypeface != newDefaultTypeface)
+    {
+        defaultTypeface = newDefaultTypeface;
+        Typeface::clearTypefaceCache();
+    }
+}
+
+void LookAndFeel::setDefaultSansSerifTypefaceName (const String& newName)
+{
+    if (defaultSans != newName)
+    {
+        defaultTypeface = {};
+        Typeface::clearTypefaceCache();
+        defaultSans = newName;
+    }
+}
+
+//==============================================================================
+MouseCursor LookAndFeel::getMouseCursorFor (Component& component)
+{
+    auto cursor = component.getMouseCursor();
+
+    for (auto* parent = component.getParentComponent();
+         parent != nullptr && cursor == MouseCursor::ParentCursor;
+         parent = parent->getParentComponent())
+    {
+        cursor = parent->getMouseCursor();
+    }
+
+    return cursor;
+}
+
+LowLevelGraphicsContext* LookAndFeel::createGraphicsContext (const Image& imageToRenderOn, const Point<int>& origin,
+                                                             const RectangleList<int>& initialClip)
+{
+    return new LowLevelGraphicsSoftwareRenderer (imageToRenderOn, origin, initialClip);
+}
+
+//==============================================================================
+void LookAndFeel::setUsingNativeAlertWindows (bool shouldUseNativeAlerts)
+{
+    useNativeAlertWindows = shouldUseNativeAlerts;
+}
+
+bool LookAndFeel::isUsingNativeAlertWindows()
+{
+   #if JUCE_LINUX
+    return false; // not available currently..
+   #else
+    return useNativeAlertWindows;
+   #endif
+}
+
+} // namespace juce