Carla/source/modules/juce_gui_extra/misc/juce_SplashScreen.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.

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

namespace juce
{

SplashScreen::SplashScreen (const String& title, const Image& image, bool useDropShadow)
    : Component (title),
      backgroundImage (image),
      clickCountToDelete (0)
{
    // You must supply a valid image here!
    jassert (backgroundImage.isValid());

    setOpaque (! backgroundImage.hasAlphaChannel());

   #if JUCE_IOS || JUCE_ANDROID
    const bool useFullScreen = true;
   #else
    const bool useFullScreen = false;
   #endif

    makeVisible (image.getWidth(), image.getHeight(), useDropShadow, useFullScreen);
}

SplashScreen::SplashScreen (const String& title, int width, int height, bool useDropShadow)
    : Component (title),
      clickCountToDelete (0)
{
    makeVisible (width, height, useDropShadow, false);
}

void SplashScreen::makeVisible (int w, int h, bool useDropShadow, bool fullscreen)
{
    clickCountToDelete = Desktop::getInstance().getMouseButtonClickCounter();
    creationTime = Time::getCurrentTime();

    const Rectangle<int> screenSize = Desktop::getInstance().getDisplays().getMainDisplay().userArea;
    const int width  = (fullscreen ? screenSize.getWidth()   : w);
    const int height = (fullscreen ? screenSize.getHeight()  : h);

    setAlwaysOnTop (true);
    setVisible (true);
    centreWithSize (width, height);
    addToDesktop (useDropShadow ? ComponentPeer::windowHasDropShadow : 0);

    if (fullscreen)
        getPeer()->setFullScreen (true);

    toFront (false);
}

SplashScreen::~SplashScreen() {}

void SplashScreen::deleteAfterDelay (RelativeTime timeout, bool removeOnMouseClick)
{
    // Note that this method must be safe to call from non-GUI threads
    if (! removeOnMouseClick)
        clickCountToDelete = std::numeric_limits<int>::max();

    minimumVisibleTime = timeout;

    startTimer (50);
}

void SplashScreen::paint (Graphics& g)
{
    g.setOpacity (1.0f);
    g.drawImage (backgroundImage, getLocalBounds().toFloat(), RectanglePlacement (RectanglePlacement::fillDestination));
}

void SplashScreen::timerCallback()
{
    if (Time::getCurrentTime() > creationTime + minimumVisibleTime
         || Desktop::getInstance().getMouseButtonClickCounter() > clickCountToDelete)
        delete this;
}

} // namespace juce