JUCE/modules/juce_audio_processors/juce_audio_processors.cpp

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

   This file is part of the JUCE library.
   Copyright (c) 2020 - Raw Material Software Limited

   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 6 End-User License
   Agreement and JUCE Privacy Policy (both effective as of the 16th June 2020).

   End User License Agreement: www.juce.com/juce-6-licence
   Privacy Policy: www.juce.com/juce-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.

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

#ifdef JUCE_AUDIO_PROCESSORS_H_INCLUDED
 /* When you add this cpp file to your project, you mustn't include it in a file where you've
    already included any other headers - just put it inside a file on its own, possibly with your config
    flags preceding it, but don't include anything else. That also includes avoiding any automatic prefix
    header files that the compiler may be using.
 */
 #error "Incorrect use of JUCE cpp file"
#endif

#define JUCE_CORE_INCLUDE_NATIVE_HEADERS 1
#define JUCE_CORE_INCLUDE_OBJC_HELPERS 1
#define JUCE_GUI_BASICS_INCLUDE_XHEADERS 1
#define JUCE_GUI_BASICS_INCLUDE_SCOPED_THREAD_DPI_AWARENESS_SETTER 1

#include "juce_audio_processors.h"
#include <juce_gui_extra/juce_gui_extra.h>

//==============================================================================
#if JUCE_MAC
 #if JUCE_SUPPORT_CARBON && (JUCE_PLUGINHOST_VST || JUCE_PLUGINHOST_AU)
  #include <Carbon/Carbon.h>
  #include <juce_gui_extra/native/juce_mac_CarbonViewWrapperComponent.h>
 #endif
#endif

#if (JUCE_PLUGINHOST_VST || JUCE_PLUGINHOST_VST3) && JUCE_LINUX
 #include <X11/Xlib.h>
 #include <X11/Xutil.h>
 #include <sys/utsname.h>
 #undef KeyPress
#endif

#if ! JUCE_WINDOWS && ! JUCE_MAC && ! JUCE_LINUX
 #undef JUCE_PLUGINHOST_VST3
 #define JUCE_PLUGINHOST_VST3 0
#endif

#if JUCE_PLUGINHOST_AU && (JUCE_MAC || JUCE_IOS)
 #include <AudioUnit/AudioUnit.h>
#endif

//==============================================================================
namespace juce
{

#if JUCE_PLUGINHOST_VST || (JUCE_PLUGINHOST_LADSPA && JUCE_LINUX)

static bool arrayContainsPlugin (const OwnedArray<PluginDescription>& list,
                                 const PluginDescription& desc)
{
    for (auto* p : list)
        if (p->isDuplicateOf (desc))
            return true;

    return false;
}

#endif

#if JUCE_WINDOWS

//==============================================================================
class HWNDComponentWithParent  : public HWNDComponent,
                                 private Timer
{
public:
    HWNDComponentWithParent()
    {
        String className ("JUCE_");
        className << String::toHexString (Time::getHighResolutionTicks());

        HMODULE moduleHandle = (HMODULE) Process::getCurrentModuleInstanceHandle();

        WNDCLASSEX wc = {};
        wc.cbSize         = sizeof (wc);
        wc.lpfnWndProc    = (WNDPROC) wndProc;
        wc.cbWndExtra     = 4;
        wc.hInstance      = moduleHandle;
        wc.lpszClassName  = className.toWideCharPointer();

        atom = RegisterClassEx (&wc);
        jassert (atom != 0);

        hwnd = CreateWindow (getClassNameFromAtom(), L"HWNDComponentWithParent",
                             0, 0, 0, 0, 0,
                             nullptr, nullptr, moduleHandle, nullptr);

        jassert (hwnd != nullptr);

        setHWND (hwnd);
        startTimer (30);
    }

    ~HWNDComponentWithParent() override
    {
        if (IsWindow (hwnd))
            DestroyWindow (hwnd);

        UnregisterClass (getClassNameFromAtom(), nullptr);
    }

private:
    //==============================================================================
    static LRESULT CALLBACK wndProc (HWND h, const UINT message, const WPARAM wParam, const LPARAM lParam)
    {
        if (message == WM_SHOWWINDOW && wParam == TRUE)
            return 0;

        return DefWindowProc (h, message, wParam, lParam);
    }

    void timerCallback() override
    {
        if (HWND child = getChildHWND())
        {
            stopTimer();

            ShowWindow (child, SW_HIDE);
            SetParent (child, NULL);

            auto windowFlags = GetWindowLongPtr (child, -16);

            windowFlags &= ~WS_CHILD;
            windowFlags |= WS_POPUP;

            SetWindowLongPtr (child, -16, windowFlags);

            setHWND (child);
        }
    }

    LPCTSTR getClassNameFromAtom() noexcept  { return (LPCTSTR) (pointer_sized_uint) atom; }

    HWND getChildHWND() const
    {
        if (HWND parent = (HWND) getHWND())
            return GetWindow (parent, GW_CHILD);

        return nullptr;
    }

    //==============================================================================
    ATOM atom;
    HWND hwnd;

    //==============================================================================
    JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (HWNDComponentWithParent)
};

#elif JUCE_MAC || JUCE_IOS

#if JUCE_IOS
 #define JUCE_IOS_MAC_VIEW  UIView
 using ViewComponentBaseClass = UIViewComponent;
#else
 #define JUCE_IOS_MAC_VIEW  NSView
 using ViewComponentBaseClass = NSViewComponent;
#endif

//==============================================================================
struct AutoResizingNSViewComponent  : public ViewComponentBaseClass,
                                      private AsyncUpdater
{
    void childBoundsChanged (Component*) override  { triggerAsyncUpdate(); }
    void handleAsyncUpdate() override              { resizeToFitView(); }
};

//==============================================================================
struct AutoResizingNSViewComponentWithParent  : public AutoResizingNSViewComponent,
                                                private Timer
{
    AutoResizingNSViewComponentWithParent()
    {
        JUCE_IOS_MAC_VIEW* v = [[JUCE_IOS_MAC_VIEW alloc] init];
        setView (v);
        [v release];

        startTimer (30);
    }

    JUCE_IOS_MAC_VIEW* getChildView() const
    {
        if (JUCE_IOS_MAC_VIEW* parent = (JUCE_IOS_MAC_VIEW*) getView())
            if ([[parent subviews] count] > 0)
                return [[parent subviews] objectAtIndex: 0];

        return nil;
    }

    void timerCallback() override
    {
        if (JUCE_IOS_MAC_VIEW* child = getChildView())
        {
            stopTimer();
            setView (child);
        }
    }
};

#endif

} // namespace juce

#include "format/juce_AudioPluginFormat.cpp"
#include "format/juce_AudioPluginFormatManager.cpp"
#include "format_types/juce_LegacyAudioParameter.cpp"
#include "processors/juce_AudioProcessor.cpp"
#include "processors/juce_AudioPluginInstance.cpp"
#include "processors/juce_AudioProcessorEditor.cpp"
#include "processors/juce_AudioProcessorGraph.cpp"
#include "processors/juce_GenericAudioProcessorEditor.cpp"
#include "processors/juce_PluginDescription.cpp"
#include "format_types/juce_LADSPAPluginFormat.cpp"
#include "format_types/juce_VSTPluginFormat.cpp"
#include "format_types/juce_VST3PluginFormat.cpp"
#include "format_types/juce_AudioUnitPluginFormat.mm"
#include "scanning/juce_KnownPluginList.cpp"
#include "scanning/juce_PluginDirectoryScanner.cpp"
#include "scanning/juce_PluginListComponent.cpp"
#include "processors/juce_AudioProcessorParameterGroup.cpp"
#include "utilities/juce_AudioProcessorParameterWithID.cpp"
#include "utilities/juce_RangedAudioParameter.cpp"
#include "utilities/juce_AudioParameterFloat.cpp"
#include "utilities/juce_AudioParameterInt.cpp"
#include "utilities/juce_AudioParameterBool.cpp"
#include "utilities/juce_AudioParameterChoice.cpp"
#include "utilities/juce_ParameterAttachments.cpp"
#include "utilities/juce_AudioProcessorValueTreeState.cpp"