JUCE/modules/juce_gui_extra/misc/juce_SplashScreen.cpp

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

   This file is part of the JUCE library.
   Copyright (c) 2013 - Raw Material Software Ltd.

   Permission is granted to use this software under the terms of either:
   a) the GPL v2 (or any later version)
   b) the Affero GPL v3

   Details of these licenses can be found at: www.gnu.org/licenses

   JUCE is distributed in the hope that it will be useful, but WITHOUT ANY
   WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR
   A PARTICULAR PURPOSE.  See the GNU General Public License for more details.

   ------------------------------------------------------------------------------

   To release a closed-source product which uses JUCE, commercial licenses are
   available: visit www.juce.com for more information.

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

SplashScreen::SplashScreen()
    : originalClickCounter (0)
{
    setOpaque (true);
}

SplashScreen::~SplashScreen()
{
}

//==============================================================================
void SplashScreen::show (const String& title,
                         const Image& backgroundImage_,
                         const int minimumTimeToDisplayFor,
                         const bool useDropShadow,
                         const bool removeOnMouseClick)
{
    backgroundImage = backgroundImage_;

    jassert (backgroundImage_.isValid());

    if (backgroundImage_.isValid())
    {
        setOpaque (! backgroundImage_.hasAlphaChannel());

        show (title,
              backgroundImage_.getWidth(),
              backgroundImage_.getHeight(),
              minimumTimeToDisplayFor,
              useDropShadow,
              removeOnMouseClick);
    }
}

void SplashScreen::show (const String& title,
                         const int width,
                         const int height,
                         const int minimumTimeToDisplayFor,
                         const bool useDropShadow,
                         const bool removeOnMouseClick)
{
    setName (title);
    setAlwaysOnTop (true);
    setVisible (true);
    centreWithSize (width, height);

    addToDesktop (useDropShadow ? ComponentPeer::windowHasDropShadow : 0);
    toFront (false);

   #if JUCE_MODAL_LOOPS_PERMITTED
    MessageManager::getInstance()->runDispatchLoopUntil (300);
   #endif

    repaint();

    originalClickCounter = removeOnMouseClick
                                ? Desktop::getInstance().getMouseButtonClickCounter()
                                : std::numeric_limits<int>::max();

    earliestTimeToDelete = Time::getCurrentTime() + RelativeTime::milliseconds (minimumTimeToDisplayFor);

    startTimer (50);
}

//==============================================================================
void SplashScreen::paint (Graphics& g)
{
    g.setOpacity (1.0f);

    g.drawImage (backgroundImage,
                 0, 0, getWidth(), getHeight(),
                 0, 0, backgroundImage.getWidth(), backgroundImage.getHeight());
}

void SplashScreen::timerCallback()
{
    if (Time::getCurrentTime() > earliestTimeToDelete
         || Desktop::getInstance().getMouseButtonClickCounter() != originalClickCounter)
    {
        delete this;
    }
}