albumStatistics.cpp

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//==============================================
//  copyright            : (C) 2003 by Will Stokes
//==============================================
//  This program is free software; you can redistribute it 
//  and/or modify it under the terms of the GNU General 
//  Public License as published by the Free Software 
//  Foundation; either version 2 of the License, or  
//  (at your option) any later version.         
//
//  As a special exception, Will Stokes gives permission to 
//  link this program with Qt non-commercial edition, and 
//  distribute the resulting executable, without including the 
//  source code for the Qt non-commercial edition in the 
//  source distribution. 
//==============================================

//Systemwide includes
#include <qlayout.h>
#include <qlabel.h>
#include <qfont.h>
#include <qpixmap.h>
#include <qimage.h>
#include <qpushbutton.h> 
#include <qfileinfo.h>

//Projectwide includes
#include "albumStatistics.h"
#include "../backend/album.h"
#include "../backend/subalbum.h"
#include "../backend/photo.h"
#include "../backend/imageTools.h"
#include "../config.h"

//==============================================
AlbumStatistics::AlbumStatistics( Album* album, 
                                  QWidget* parent,
                                  const char* name ) : 
                                  QDialog(parent,name)
{
  //--
  //this album pointer
  this->album = album;
  //--
  //compute number of photos and size on disk  
  int photos = 0;
  int albumSize = 0;
  Subalbum* curSubalbum = album->getFirstSubalbum();
  QFileInfo info;
  while(curSubalbum != NULL)
  {
    photos+= curSubalbum->getNumPhotos();
    Photo* curPhoto = curSubalbum->getFirst();
    while(curPhoto != NULL)
    {
      info.setFile( curPhoto->getImageFilename() );
      albumSize+=info.size();
      
      info.setFile( curPhoto->getSlideshowFilename() );
      albumSize+=info.size();
     
      curPhoto = curPhoto->getNext();    
    }
    curSubalbum = curSubalbum->getNext();
  }
  //--  
  //set window title
  setCaption( tr("Album Statistics"));
  //--
  //set the background of the widget to be white
  setPaletteBackgroundColor( QColor(255, 255, 255) );
  //--
  //create title
  titleMessage = new QLabel( tr("Album Statistics"), this);
  QFont titleFont( "Times", 14, QFont::Bold );
  titleFont.setUnderline(true);
  titleMessage->setFont( titleFont );
  //--
  //create stats
  QFont statsFont( "Times", 12, QFont::Bold );
  
  numSubalbums = new QLabel( tr("Subalbums:"), this);
  numSubalbums->setFont( statsFont );    
  numSubalbumsVal = new QLabel(this);
  numSubalbumsVal->setText( QString("%1").arg(album->getNumSubalbums()) );
  numSubalbumsVal->setFont( statsFont );
  
  numPhotos = new QLabel( tr("Photos:"), this);
  numPhotos->setFont( statsFont );    
  numPhotosVal = new QLabel(this);
  numPhotosVal->setText( QString("%1").arg(photos) );
  numPhotosVal->setFont( statsFont );
  
  sizeOnDisk = new QLabel( tr("Size:"), this);
  sizeOnDisk->setFont( statsFont );    
  sizeOnDiskVal = new QLabel(this);
  sizeOnDiskVal->setFont( statsFont );  
  if(albumSize < 1024)
    sizeOnDiskVal->setText( QString(tr("~%1 Bytes")).arg(albumSize) );
  else if( albumSize/1024 < 1024)
    sizeOnDiskVal->setText( QString(tr("~%1 Kb")).arg( ((float)albumSize)/1024 ) );
  else if( albumSize/(1024*1024) < 1024)
    sizeOnDiskVal->setText( QString(tr("~%1 Mb")).arg( ((float)albumSize)/(1024*1024) ) );
  else
    sizeOnDiskVal->setText( QString(tr("~%1 Gigs")).arg( ((float)albumSize)/(1024*1024*1024) ) );
  //--
  //create album image and title labels  
  albumPreview = new QFrame( this );
  albumIcon = new QLabel( albumPreview );
  
  //if no rep image use small version
  if(album->getRepresentativeImage(LARGE) == NULL)
    albumIcon->setPixmap( *album->getRepresentativeImage( SMALL ) );
  else
  {
    QImage tImage = album->getRepresentativeImage( LARGE )->convertToImage();
    int newWidth, newHeight;
    resizeImage( tImage.width(), tImage.height(),
                 300, 300,
                 newWidth, newHeight);
    QImage tImage2 = tImage.smoothScale( newWidth, newHeight );
    albumImage = new QPixmap( newWidth, newHeight );
    albumImage->convertFromImage( tImage2 );
    albumIcon->setPixmap( *albumImage );
  }
  
  albumTitle = new QLabel( albumPreview );
  if(album->getName().compare("") != 0)
  {
    albumTitle->setText( "\"" + album->getName() + "\"" );
  }  
  albumTitle->setFont( statsFont );  
  //--
  //create ok button
  okButton = new QPushButton( QPixmap(QString(IMAGE_PATH)+"button_ok.png"), 
                              tr("Ok"), 
                              this );
  okButton->setSizePolicy( QSizePolicy::Maximum, QSizePolicy::Maximum );
  okButton->setDefault(true);
  connect( okButton, SIGNAL(clicked()), SLOT(close()) );
  //--
  //place widgets in grid
  grid = new QGridLayout( this, 8, 3, 0);
  
  //add statistics text
  grid->addMultiCellWidget( titleMessage, 1, 1, 0, 1, Qt::AlignCenter);
  grid->addWidget( numSubalbums, 3, 0 );
  grid->addWidget( numSubalbumsVal, 3, 1, Qt::AlignRight );
  grid->addWidget( numPhotos, 4, 0 );
  grid->addWidget( numPhotosVal, 4, 1, Qt::AlignRight );
  grid->addWidget( sizeOnDisk, 5, 0 );
  grid->addWidget( sizeOnDiskVal, 5, 1, Qt::AlignRight );

  //add album image and name
  grid2 = new QGridLayout( albumPreview, 2, 1, 0 );
  grid2->addWidget( albumIcon, 0, 0, Qt::AlignCenter );
  grid2->addWidget( albumTitle, 1, 0, Qt::AlignCenter );  
  grid->addMultiCellWidget( albumPreview, 0, 6, 2, 2, Qt::AlignCenter );
  
  //add ok button
  grid->addMultiCellWidget( okButton, 7, 7, 0, 2, Qt::AlignCenter );
   
  //add space between "Album Statistics" text and actual statistics 
  grid->addRowSpacing( 2, 10 );
  
  //create expanding white space above and below text on left
  grid->setRowStretch( 0, 1 );  
  grid->setRowStretch( 6, 1 );  
  
  //set the text area to stretch width-wise
  grid->setColStretch( 1, 1 );  
  //--
  //set window to not be resizeable
  this->show();
  setFixedSize(size());
  //-------------------------------
}
//==============================================
void AlbumStatistics::closeEvent( QCloseEvent* e)
{
  albumStatisticsClosed();
  QWidget::closeEvent( e );
}
//==============================================

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