src/Dialog_SplashScreen.cpp

   1 ///////////////////////////////////////////////////////////////////////////////
   2 // LameXP - Audio Encoder Front-End
   3 // Copyright (C) 2004-2011 LoRd_MuldeR <MuldeR2@GMX.de>
   4 //
   5 // This program is free software; you can redistribute it and/or modify
   6 // it under the terms of the GNU General Public License as published by
   7 // the Free Software Foundation; either version 2 of the License, or
   8 // (at your option) any later version.
   9 //
  10 // This program is distributed in the hope that it will be useful,
  11 // but WITHOUT ANY WARRANTY; without even the implied warranty of
  12 // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  13 // GNU General Public License for more details.
  14 //
  15 // You should have received a copy of the GNU General Public License along
  16 // with this program; if not, write to the Free Software Foundation, Inc.,
  17 // 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA.
  18 //
  19 // http://www.gnu.org/licenses/gpl-2.0.txt
  20 ///////////////////////////////////////////////////////////////////////////////
  21
  22 #include "Dialog_SplashScreen.h"
  23
  24 #include "Global.h"
  25
  26 #include <QThread>
  27 #include <QMovie>
  28 #include <QKeyEvent>
  29
  30 #define EPS (1.0E-5)
  31
  32 ////////////////////////////////////////////////////////////
  33 // Constructor
  34 ////////////////////////////////////////////////////////////
  35
  36 SplashScreen::SplashScreen(QWidget *parent)
  37         : QFrame(parent, Qt::CustomizeWindowHint | Qt::WindowStaysOnTopHint)
  38 {
  39         //Init the dialog, from the .ui file
  40         setupUi(this);
  41
  42         //Start animation
  43         m_working = new QMovie(":/images/Loading.gif");
  44         labelLoading->setMovie(m_working);
  45         m_working->start();
  46
  47         //Set wait cursor
  48         setCursor(Qt::WaitCursor);
  49
  50         //Prevent close
  51         m_canClose = false;
  52 }
  53
  54 ////////////////////////////////////////////////////////////
  55 // Destructor
  56 ////////////////////////////////////////////////////////////
  57
  58 SplashScreen::~SplashScreen(void)
  59 {
  60         if(m_working)
  61         {
  62                 m_working->stop();
  63                 delete m_working;
  64                 m_working = NULL;
  65         }
  66 }
  67
  68 ////////////////////////////////////////////////////////////
  69 // PUBLIC FUNCTIONS
  70 ////////////////////////////////////////////////////////////
  71
  72 void SplashScreen::showSplash(QThread *thread)
  73 {
  74         SplashScreen *splashScreen = new SplashScreen();
  75
  76         //Show splash
  77         splashScreen->m_canClose = false;
  78         splashScreen->setWindowOpacity(0.0);
  79         splashScreen->show();
  80         QApplication::processEvents();
  81
  82         //Start the thread
  83         thread->start();
  84
  85         //Fade in
  86         for(double d = 0.0; d <= 1.0 + EPS; d = d + 0.01)
  87         {
  88                 splashScreen->setWindowOpacity(d);
  89                 QApplication::processEvents();
  90                 Sleep(6);
  91         }
  92
  93         //Loop while thread is running
  94         while(thread->isRunning())
  95         {
  96                 QApplication::processEvents(QEventLoop::AllEvents | QEventLoop::WaitForMoreEvents);
  97         }
  98
  99         //Fade out
 100         for(double d = 1.0; d >= 0.0; d = d - 0.01)
 101         {
 102                 splashScreen->setWindowOpacity(d);
 103                 QApplication::processEvents();
 104                 Sleep(6);
 105         }
 106
 107         //Hide splash
 108         splashScreen->m_canClose = true;
 109         splashScreen->close();
 110
 111         LAMEXP_DELETE(splashScreen);
 112 }
 113
 114 ////////////////////////////////////////////////////////////
 115 // EVENTS
 116 ////////////////////////////////////////////////////////////
 117
 118 void SplashScreen::keyPressEvent(QKeyEvent *event)
 119 {
 120         event->ignore();
 121 }
 122
 123 void SplashScreen::keyReleaseEvent(QKeyEvent *event)
 124 {
 125         event->ignore();
 126 }
 127
 128 void SplashScreen::closeEvent(QCloseEvent *event)
 129 {
 130         if(!m_canClose) event->ignore();
 131 }