kworship/display/KwBackgroundManager.cpp

   1 /***************************************************************************
   2  *   This file is part of KWorship.                                        *
   3  *   Copyright 2008 James Hogan <james@albanarts.com>                      *
   4  *                                                                         *
   5  *   KWorship 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  *   KWorship 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     *
  16  *   along with KWorship.  If not, write to the Free Software Foundation,  *
  17  *   Inc., 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA.   *
  18  ***************************************************************************/
  19
  20 /**
  21  * @file KwBackgroundManager.cpp
  22  * @brief Background manager.
  23  * @author James Hogan <james@albanarts.com>
  24  */
  25
  26 #include "KwBackgroundManager.h"
  27 #include "KwDisplayStyles.h"
  28
  29 #include "KwImageLayer.h"
  30 #include "KwVideoLayer.h"
  31
  32 #include <phonon/mediaobject.h>
  33 #include <phonon/audiooutput.h>
  34
  35 /*
  36  * Constructors + destructors
  37  */
  38
  39 /// Default constructor.
  40 KwBackgroundManager::KwBackgroundManager(KwMediaManager* mediaManager)
  41 : KwAbstractDisplayManager()
  42 , m_mediaManager(mediaManager)
  43 , m_imageLayer(0)
  44 , m_videoLayer(0)
  45 {
  46 }
  47
  48 /// Destructor.
  49 KwBackgroundManager::~KwBackgroundManager()
  50 {
  51   clear();
  52 }
  53
  54 /*
  55  * Main interface
  56  */
  57
  58 /// Apply the styles in a scope.
  59 void KwBackgroundManager::applyStyles(KwCssScope* scope)
  60 {
  61   KwResourceLink image = KwDisplayStyles::background::image::src(scope);
  62   if (image.isNull())
  63   {
  64     // Set background if applicable
  65     setPlain(KwDisplayStyles::background::brush(scope));
  66   }
  67   else
  68   {
  69     /// @todo Get the actual file from resource link instead of assuming its a url.
  70     setImage(QPixmap(image.url().toLocalFile()));
  71   }
  72 }
  73
  74 /// Clear the background.
  75 void KwBackgroundManager::clear()
  76 {
  77   m_display.clearLayers();
  78   delete m_imageLayer;
  79   delete m_videoLayer;
  80   m_imageLayer = 0;
  81   m_videoLayer = 0;
  82 }
  83
  84 /// Set background to a brush.
  85 void KwBackgroundManager::setPlain(QBrush brush)
  86 {
  87   clear();
  88   m_imageLayer = new KwImageLayer(brush);
  89   m_display.setLayer(0, m_imageLayer, true);
  90 }
  91
  92 /// Set the background to an image.
  93 void KwBackgroundManager::setImage(const QPixmap& pixmap)
  94 {
  95   clear();
  96   m_imageLayer = new KwImageLayer(pixmap);
  97   m_display.setLayer(0, m_imageLayer, true);
  98 }
  99
 100 /// Set the background up for video.
 101 void KwBackgroundManager::setVideo()
 102 {
 103   // Make sure the background video layer is set up
 104   if (0 == m_videoLayer)
 105   {
 106     clear();
 107     m_videoLayer = new KwVideoLayer(m_mediaManager);
 108     m_display.setLayer(0, m_videoLayer, true);
 109   }
 110 }
 111