392 lines
13 KiB
C++
392 lines
13 KiB
C++
/*
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==============================================================================
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This file is part of the JUCE framework.
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Copyright (c) Raw Material Software Limited
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JUCE is an open source framework subject to commercial or open source
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licensing.
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By downloading, installing, or using the JUCE framework, or combining the
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JUCE framework with any other source code, object code, content or any other
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copyrightable work, you agree to the terms of the JUCE End User Licence
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Agreement, and all incorporated terms including the JUCE Privacy Policy and
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the JUCE Website Terms of Service, as applicable, which will bind you. If you
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do not agree to the terms of these agreements, we will not license the JUCE
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framework to you, and you must discontinue the installation or download
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process and cease use of the JUCE framework.
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JUCE End User Licence Agreement: https://juce.com/legal/juce-8-licence/
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JUCE Privacy Policy: https://juce.com/juce-privacy-policy
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JUCE Website Terms of Service: https://juce.com/juce-website-terms-of-service/
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Or:
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You may also use this code under the terms of the AGPLv3:
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https://www.gnu.org/licenses/agpl-3.0.en.html
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THE JUCE FRAMEWORK IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL
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WARRANTIES, WHETHER EXPRESSED OR IMPLIED, INCLUDING WARRANTY OF
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MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE, ARE DISCLAIMED.
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==============================================================================
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*/
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#include <JuceHeader.h>
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#include "UI/MainHostWindow.h"
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#include "Plugins/InternalPlugins.h"
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#if ! (JUCE_PLUGINHOST_VST || JUCE_PLUGINHOST_VST3 || JUCE_PLUGINHOST_AU)
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#error "If you're building the audio plugin host, you probably want to enable VST and/or AU support"
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#endif
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class PluginScannerSubprocess final : private ChildProcessWorker,
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private AsyncUpdater
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{
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public:
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PluginScannerSubprocess()
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{
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formatManager.addDefaultFormats();
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}
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using ChildProcessWorker::initialiseFromCommandLine;
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private:
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void handleMessageFromCoordinator (const MemoryBlock& mb) override
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{
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if (mb.isEmpty())
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return;
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const std::lock_guard<std::mutex> lock (mutex);
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if (const auto results = doScan (mb); ! results.isEmpty())
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{
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sendResults (results);
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}
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else
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{
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pendingBlocks.emplace (mb);
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triggerAsyncUpdate();
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}
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}
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void handleConnectionLost() override
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{
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JUCEApplicationBase::quit();
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}
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void handleAsyncUpdate() override
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{
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for (;;)
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{
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const std::lock_guard<std::mutex> lock (mutex);
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if (pendingBlocks.empty())
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return;
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sendResults (doScan (pendingBlocks.front()));
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pendingBlocks.pop();
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}
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}
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OwnedArray<PluginDescription> doScan (const MemoryBlock& block)
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{
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MemoryInputStream stream { block, false };
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const auto formatName = stream.readString();
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const auto identifier = stream.readString();
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PluginDescription pd;
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pd.fileOrIdentifier = identifier;
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pd.uniqueId = pd.deprecatedUid = 0;
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const auto matchingFormat = [&]() -> AudioPluginFormat*
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{
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for (auto* format : formatManager.getFormats())
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if (format->getName() == formatName)
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return format;
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return nullptr;
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}();
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OwnedArray<PluginDescription> results;
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if (matchingFormat != nullptr
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&& (MessageManager::getInstance()->isThisTheMessageThread()
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|| matchingFormat->requiresUnblockedMessageThreadDuringCreation (pd)))
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{
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matchingFormat->findAllTypesForFile (results, identifier);
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}
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return results;
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}
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void sendResults (const OwnedArray<PluginDescription>& results)
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{
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XmlElement xml ("LIST");
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for (const auto& desc : results)
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xml.addChildElement (desc->createXml().release());
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const auto str = xml.toString();
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sendMessageToCoordinator ({ str.toRawUTF8(), str.getNumBytesAsUTF8() });
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}
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std::mutex mutex;
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std::queue<MemoryBlock> pendingBlocks;
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AudioPluginFormatManager formatManager;
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};
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//==============================================================================
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class PluginHostApp final : public JUCEApplication,
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private AsyncUpdater
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{
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public:
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PluginHostApp() = default;
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void initialise (const String& commandLine) override
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{
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auto scannerSubprocess = std::make_unique<PluginScannerSubprocess>();
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if (scannerSubprocess->initialiseFromCommandLine (commandLine, processUID))
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{
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storedScannerSubprocess = std::move (scannerSubprocess);
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return;
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}
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// initialise our settings file..
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PropertiesFile::Options options;
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options.applicationName = "Juce Audio Plugin Host";
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options.filenameSuffix = "settings";
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options.osxLibrarySubFolder = "Preferences";
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appProperties.reset (new ApplicationProperties());
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appProperties->setStorageParameters (options);
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mainWindow.reset (new MainHostWindow());
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commandManager.registerAllCommandsForTarget (this);
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commandManager.registerAllCommandsForTarget (mainWindow.get());
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mainWindow->menuItemsChanged();
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// Important note! We're going to use an async update here so that if we need
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// to re-open a file and instantiate some plugins, it will happen AFTER this
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// initialisation method has returned.
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// On Windows this probably won't make a difference, but on OSX there's a subtle event loop
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// issue that can happen if a plugin runs one of those irritating modal dialogs while it's
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// being loaded. If that happens inside this method, the OSX event loop seems to be in some
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// kind of special "initialisation" mode and things get confused. But if we load the plugin
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// later when the normal event loop is running, everything's fine.
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triggerAsyncUpdate();
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}
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void handleAsyncUpdate() override
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{
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File fileToOpen;
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#if JUCE_ANDROID || JUCE_IOS
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fileToOpen = PluginGraph::getDefaultGraphDocumentOnMobile();
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#else
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for (int i = 0; i < getCommandLineParameterArray().size(); ++i)
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{
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fileToOpen = File::getCurrentWorkingDirectory().getChildFile (getCommandLineParameterArray()[i]);
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if (fileToOpen.existsAsFile())
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break;
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}
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#endif
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if (! fileToOpen.existsAsFile())
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{
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RecentlyOpenedFilesList recentFiles;
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recentFiles.restoreFromString (getAppProperties().getUserSettings()->getValue ("recentFilterGraphFiles"));
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if (recentFiles.getNumFiles() > 0)
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fileToOpen = recentFiles.getFile (0);
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}
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if (fileToOpen.existsAsFile())
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if (auto* graph = mainWindow->graphHolder.get())
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if (auto* ioGraph = graph->graph.get())
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ioGraph->loadFrom (fileToOpen, true);
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}
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void shutdown() override
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{
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mainWindow = nullptr;
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appProperties = nullptr;
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LookAndFeel::setDefaultLookAndFeel (nullptr);
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}
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void suspended() override
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{
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#if JUCE_ANDROID || JUCE_IOS
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if (auto graph = mainWindow->graphHolder.get())
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if (auto ioGraph = graph->graph.get())
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ioGraph->saveDocument (PluginGraph::getDefaultGraphDocumentOnMobile());
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#endif
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}
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void systemRequestedQuit() override
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{
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if (mainWindow != nullptr)
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mainWindow->tryToQuitApplication();
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else
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JUCEApplicationBase::quit();
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}
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bool backButtonPressed() override
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{
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if (mainWindow->graphHolder != nullptr)
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mainWindow->graphHolder->hideLastSidePanel();
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return true;
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}
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const String getApplicationName() override { return "Juce Plug-In Host"; }
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const String getApplicationVersion() override { return ProjectInfo::versionString; }
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bool moreThanOneInstanceAllowed() override { return true; }
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ApplicationCommandManager commandManager;
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std::unique_ptr<ApplicationProperties> appProperties;
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private:
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std::unique_ptr<MainHostWindow> mainWindow;
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std::unique_ptr<PluginScannerSubprocess> storedScannerSubprocess;
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};
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static PluginHostApp& getApp() { return *dynamic_cast<PluginHostApp*> (JUCEApplication::getInstance()); }
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ApplicationProperties& getAppProperties() { return *getApp().appProperties; }
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ApplicationCommandManager& getCommandManager() { return getApp().commandManager; }
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bool isOnTouchDevice()
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{
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static bool isTouch = Desktop::getInstance().getMainMouseSource().isTouch();
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return isTouch;
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}
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//==============================================================================
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static AutoScale autoScaleFromString (StringRef str)
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{
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if (str.isEmpty()) return AutoScale::useDefault;
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if (str == CharPointer_ASCII { "0" }) return AutoScale::scaled;
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if (str == CharPointer_ASCII { "1" }) return AutoScale::unscaled;
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jassertfalse;
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return AutoScale::useDefault;
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}
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static const char* autoScaleToString (AutoScale autoScale)
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{
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if (autoScale == AutoScale::scaled) return "0";
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if (autoScale == AutoScale::unscaled) return "1";
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return {};
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}
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AutoScale getAutoScaleValueForPlugin (const String& identifier)
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{
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if (identifier.isNotEmpty())
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{
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auto plugins = StringArray::fromLines (getAppProperties().getUserSettings()->getValue ("autoScalePlugins"));
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plugins.removeEmptyStrings();
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for (auto& plugin : plugins)
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{
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auto fromIdentifier = plugin.fromFirstOccurrenceOf (identifier, false, false);
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if (fromIdentifier.isNotEmpty())
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return autoScaleFromString (fromIdentifier.fromFirstOccurrenceOf (":", false, false));
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}
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}
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return AutoScale::useDefault;
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}
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void setAutoScaleValueForPlugin (const String& identifier, AutoScale s)
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{
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auto plugins = StringArray::fromLines (getAppProperties().getUserSettings()->getValue ("autoScalePlugins"));
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plugins.removeEmptyStrings();
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auto index = [identifier, plugins]
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{
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auto it = std::find_if (plugins.begin(), plugins.end(),
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[&] (const String& str) { return str.startsWith (identifier); });
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return (int) std::distance (plugins.begin(), it);
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}();
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if (s == AutoScale::useDefault && index != plugins.size())
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{
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plugins.remove (index);
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}
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else
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{
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auto str = identifier + ":" + autoScaleToString (s);
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if (index != plugins.size())
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plugins.getReference (index) = str;
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else
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plugins.add (str);
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}
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getAppProperties().getUserSettings()->setValue ("autoScalePlugins", plugins.joinIntoString ("\n"));
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}
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static bool isAutoScaleAvailableForPlugin (const PluginDescription& description)
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{
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return autoScaleOptionAvailable
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&& (description.pluginFormatName.containsIgnoreCase ("VST")
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|| description.pluginFormatName.containsIgnoreCase ("LV2"));
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}
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bool shouldAutoScalePlugin (const PluginDescription& description)
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{
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if (! isAutoScaleAvailableForPlugin (description))
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return false;
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const auto scaleValue = getAutoScaleValueForPlugin (description.fileOrIdentifier);
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return (scaleValue == AutoScale::scaled
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|| (scaleValue == AutoScale::useDefault
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&& getAppProperties().getUserSettings()->getBoolValue ("autoScalePluginWindows")));
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}
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void addPluginAutoScaleOptionsSubMenu (AudioPluginInstance* pluginInstance,
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PopupMenu& menu)
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{
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if (pluginInstance == nullptr)
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return;
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auto description = pluginInstance->getPluginDescription();
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if (! isAutoScaleAvailableForPlugin (description))
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return;
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auto identifier = description.fileOrIdentifier;
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PopupMenu autoScaleMenu;
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autoScaleMenu.addItem ("Default",
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true,
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getAutoScaleValueForPlugin (identifier) == AutoScale::useDefault,
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[identifier] { setAutoScaleValueForPlugin (identifier, AutoScale::useDefault); });
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autoScaleMenu.addItem ("Enabled",
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true,
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getAutoScaleValueForPlugin (identifier) == AutoScale::scaled,
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[identifier] { setAutoScaleValueForPlugin (identifier, AutoScale::scaled); });
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autoScaleMenu.addItem ("Disabled",
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true,
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getAutoScaleValueForPlugin (identifier) == AutoScale::unscaled,
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[identifier] { setAutoScaleValueForPlugin (identifier, AutoScale::unscaled); });
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menu.addSubMenu ("Auto-scale window", autoScaleMenu);
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}
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// This kicks the whole thing off..
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START_JUCE_APPLICATION (PluginHostApp)
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