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/buttons/juce_TextButton.h

@@ -0,0 +1,115 @@
+/*
+  ==============================================================================
+
+   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
+{
+
+//==============================================================================
+/**
+    A button that uses the standard lozenge-shaped background with a line of
+    text on it.
+
+    @see Button, DrawableButton
+
+    @tags{GUI}
+*/
+class JUCE_API  TextButton  : public Button
+{
+public:
+    //==============================================================================
+    /** Creates a TextButton. */
+    TextButton();
+
+    /** Creates a TextButton.
+        @param buttonName           the text to put in the button (the component's name is also
+                                    initially set to this string, but these can be changed later
+                                    using the setName() and setButtonText() methods)
+    */
+    explicit TextButton (const String& buttonName);
+
+    /** Creates a TextButton.
+        @param buttonName           the text to put in the button (the component's name is also
+                                    initially set to this string, but these can be changed later
+                                    using the setName() and setButtonText() methods)
+        @param toolTip              an optional string to use as a toolip
+    */
+    TextButton (const String& buttonName, const String& toolTip);
+
+    /** Destructor. */
+    ~TextButton();
+
+    //==============================================================================
+    /** A set of colour IDs to use to change the colour of various aspects of the button.
+
+        These constants can be used either via the Component::setColour(), or LookAndFeel::setColour()
+        methods.
+
+        @see Component::setColour, Component::findColour, LookAndFeel::setColour, LookAndFeel::findColour
+    */
+    enum ColourIds
+    {
+        buttonColourId                  = 0x1000100,  /**< The colour used to fill the button shape (when the button is toggled
+                                                           'off'). The look-and-feel class might re-interpret this to add
+                                                           effects, etc. */
+        buttonOnColourId                = 0x1000101,  /**< The colour used to fill the button shape (when the button is toggled
+                                                           'on'). The look-and-feel class might re-interpret this to add
+                                                           effects, etc. */
+        textColourOffId                 = 0x1000102,  /**< The colour to use for the button's text when the button's toggle state is "off". */
+        textColourOnId                  = 0x1000103   /**< The colour to use for the button's text.when the button's toggle state is "on". */
+    };
+
+    //==============================================================================
+    /** Changes this button's width to fit neatly around its current text, without
+        changing its height.
+    */
+    void changeWidthToFitText();
+
+    /** Resizes the button's width to fit neatly around its current text, and gives it
+        the specified height.
+    */
+    void changeWidthToFitText (int newHeight);
+
+    /** Returns the width that the LookAndFeel suggests would be best for this button if it
+        had the given height.
+    */
+    int getBestWidthForHeight (int buttonHeight);
+
+    //==============================================================================
+    /** @internal */
+    void paintButton (Graphics&, bool isMouseOverButton, bool isButtonDown) override;
+    /** @internal */
+    void colourChanged() override;
+
+private:
+   #if JUCE_CATCH_DEPRECATED_CODE_MISUSE
+    // Note that this method has been removed - instead, see LookAndFeel::getTextButtonFont()
+    virtual int getFont() { return 0; }
+   #endif
+
+    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (TextButton)
+};
+
+} // namespace juce