JUCE/examples/DemoRunner/Source/Main.cpp

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

   This file is part of the JUCE 6 technical preview.
   Copyright (c) 2020 - Raw Material Software Limited

   You may use this code under the terms of the GPL v3
   (see www.gnu.org/licenses).

   For this technical preview, this file is not subject to commercial licensing.

   JUCE IS PROVIDED "AS IS" WITHOUT ANY WARRANTY, AND ALL WARRANTIES, WHETHER
   EXPRESSED OR IMPLIED, INCLUDING MERCHANTABILITY AND FITNESS FOR PURPOSE, ARE
   DISCLAIMED.

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

#include <JuceHeader.h>
#include "../../Assets/DemoUtilities.h"

#include "UI/MainComponent.h"

//==============================================================================
#if JUCE_WINDOWS || JUCE_LINUX || JUCE_MAC
 // Just add a simple icon to the Window system tray area or Mac menu bar..
 struct DemoTaskbarComponent  : public SystemTrayIconComponent,
                                private Timer
 {
     DemoTaskbarComponent()
     {
         setIconImage (getImageFromAssets ("juce_icon.png"),
                       getImageFromAssets ("juce_icon_template.png"));
         setIconTooltip ("JUCE demo runner!");
     }

     void mouseDown (const MouseEvent&) override
     {
         // On OSX, there can be problems launching a menu when we're not the foreground
         // process, so just in case, we'll first make our process active, and then use a
         // timer to wait a moment before opening our menu, which gives the OS some time to
         // get its act together and bring our windows to the front.

         Process::makeForegroundProcess();
         startTimer (50);
     }

     // This is invoked when the menu is clicked or dismissed
     static void menuInvocationCallback (int chosenItemID, DemoTaskbarComponent*)
     {
         if (chosenItemID == 1)
             JUCEApplication::getInstance()->systemRequestedQuit();
     }

     void timerCallback() override
     {
         stopTimer();

         PopupMenu m;
         m.addItem (1, "Quit");

         // It's always better to open menus asynchronously when possible.
         m.showMenuAsync (PopupMenu::Options(),
                          ModalCallbackFunction::forComponent (menuInvocationCallback, this));
     }
 };
#endif

std::unique_ptr<AudioDeviceManager> sharedAudioDeviceManager;

//==============================================================================
class DemoRunnerApplication  : public JUCEApplication
{
public:
    //==============================================================================
    DemoRunnerApplication() {}

    ~DemoRunnerApplication() override
    {
        sharedAudioDeviceManager.reset();
    }

    const String getApplicationName() override       { return ProjectInfo::projectName; }
    const String getApplicationVersion() override    { return ProjectInfo::versionString; }
    bool moreThanOneInstanceAllowed() override       { return true; }

    //==============================================================================
    void initialise (const String& commandLine) override
    {
        registerAllDemos();

      #if JUCE_MAC || JUCE_WINDOWS || JUCE_LINUX
        // (This function call is for one of the demos, which involves launching a child process)
        if (invokeChildProcessDemo (commandLine))
            return;
      #else
        ignoreUnused (commandLine);
      #endif

        mainWindow.reset (new MainAppWindow (getApplicationName()));
    }

    bool backButtonPressed() override    { mainWindow->getMainComponent().getSidePanel().showOrHide (false); return true; }
    void shutdown() override             { mainWindow = nullptr; }

    //==============================================================================
    void systemRequestedQuit() override                                 { quit(); }
    void anotherInstanceStarted (const String&) override                {}

private:
    class MainAppWindow    : public DocumentWindow
    {
    public:
        MainAppWindow (const String& name)
            : DocumentWindow (name, Desktop::getInstance().getDefaultLookAndFeel()
                                                          .findColour (ResizableWindow::backgroundColourId),
                              DocumentWindow::allButtons)
        {
            setUsingNativeTitleBar (true);
            setResizable (true, false);
            setResizeLimits (400, 400, 10000, 10000);

           #if JUCE_IOS || JUCE_ANDROID
            setFullScreen (true);
            Desktop::getInstance().setOrientationsEnabled (Desktop::rotatedClockwise | Desktop::rotatedAntiClockwise);
           #else
            setBounds ((int) (0.1f * getParentWidth()),
                       (int) (0.1f * getParentHeight()),
                       jmax (850, (int) (0.5f * getParentWidth())),
                       jmax (600, (int) (0.7f * getParentHeight())));
           #endif

            setContentOwned (new MainComponent(), false);
            setVisible (true);

           #if JUCE_WINDOWS || JUCE_LINUX || JUCE_MAC
            taskbarIcon.reset (new DemoTaskbarComponent());
           #endif
        }

        void closeButtonPressed() override    { JUCEApplication::getInstance()->systemRequestedQuit(); }

        //==============================================================================
        MainComponent& getMainComponent()    { return *dynamic_cast<MainComponent*> (getContentComponent()); }

    private:
        std::unique_ptr<Component> taskbarIcon;

        JUCE_DECLARE_NON_COPYABLE_WITH_LEAK_DETECTOR (MainAppWindow)
    };

    std::unique_ptr<MainAppWindow> mainWindow;
};

//==============================================================================
// This macro generates the main() routine that launches the app.
START_JUCE_APPLICATION (DemoRunnerApplication)