saveDialog.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 <qtextbrowser.h>
#include <qlineedit.h>
#include <qlistbox.h>
#include <qframe.h>
#include <qstringlist.h>
#include <qdir.h>
#include <qpushbutton.h>
#include <qfiledialog.h>
#include <qtooltip.h>

//Projectwide includes
#include "saveDialog.h"
#include "../config.h"

#include <iostream>

//==============================================
SaveDialog::SaveDialog( QString actionMessage,
                                    QString defaultPath,
                                    QString defaultTheme,
                                    QWidget* parent,
                                    const char* name ) : 
                                    QDialog(parent,name)
{
  //set window title
  setCaption( actionMessage );
  
  //set the background of the widget to be white
  setPaletteBackgroundColor( QColor(255, 255, 255) );
    
  QFont textFont( "Times", 12, QFont::Bold );
  
  //create location frame and widgets
  locationFrame = new QFrame( this );  
  locationLabel = new QLabel( tr("Save to:"), locationFrame );
  locationLabel->setFont( textFont );  
  locationVal = new QLineEdit( locationFrame );
  locationVal->setText( defaultPath );
  locationVal->setFont( textFont );
  browseButton = new QPushButton( locationFrame );
  browseButton->setPixmap( QPixmap(QString(IMAGE_PATH)+"browse.png") );
  browseButton->setSizePolicy( QSizePolicy::Maximum, QSizePolicy::Maximum );
  QToolTip::add( browseButton, tr("Browse to save destination") );
  connect( browseButton, SIGNAL(clicked()), SLOT(browse()) );
  locationGrid = new QGridLayout( locationFrame, 1, 3, 0 );
  locationGrid->addWidget( locationLabel, 0, 0 );
  locationGrid->addWidget( locationVal, 0, 1 );
  locationGrid->addWidget( browseButton, 0, 2);
  locationGrid->setColStretch( 1, 1 );
  
  //create theme selection frame and widgets
  themeSelectionFrame = new QFrame( this );
  themesLabel = new QLabel( tr("Themes:"), themeSelectionFrame );
  themesLabel->setFont( textFont );  
  themesList = new QListBox( themeSelectionFrame );
  QToolTip::add( themesList, tr("Select theme for saving album") );
  QDir localDir( THEMES_PATH );
  QStringList list = localDir.entryList( QDir::Dirs );
  bool itemsAdded = false;
  QStringList::Iterator file;
  for ( file = list.begin(); file != list.end(); ++file ) 
  {
    if(localDir.exists( QString(*file) + "/theme.xsl" ))
    {
      themesList->insertItem( *file );
      itemsAdded = true;
    }
  }
  
  //attempt to select default theme passed in, if not found select first theme in list
  bool themeFound = false;
  uint i=0;
  for(i=0; i<themesList->count(); i++)
  {
    if(themesList->text(i) == defaultTheme )
    {
      themeFound = true;
      themesList->setCurrentItem( i );
      break;
    }
  }
  if(!themeFound && itemsAdded )
  {
    themesList->setCurrentItem( 0 );
  }
  
  connect( themesList, SIGNAL( highlighted(int) ), this, SLOT( updatePreview() ) );
    
  themeSelectionGrid = new QGridLayout( themeSelectionFrame, 2, 1, 0 );
  themeSelectionGrid->addWidget( themesLabel, 0, 0 );
  themeSelectionGrid->addWidget( themesList, 1, 0 );

  //create theme preview frame and widgets
  themePreviewFrame = new QFrame( this );
  themePreviewLabel = new QLabel( tr("Theme Preview:"), themePreviewFrame );
  themePreviewLabel->setFont( textFont ); 
  themeScreenShot = new QLabel( themePreviewFrame );  
  screenShotLabel = new QLabel( themePreviewFrame );
  screenShotLabel->setFont( textFont );
  themeScreenPrev = new QPushButton( themePreviewFrame );
  themeScreenPrev->setPixmap( QPixmap(QString(IMAGE_PATH)+"previous.png") );
  themeScreenPrev->setSizePolicy( QSizePolicy::Maximum, QSizePolicy::Maximum );
  QToolTip::add( themeScreenPrev, tr("View previous theme screenshot") );
  connect( themeScreenPrev, SIGNAL(clicked()), SLOT(prevScreenShot()) );
  themeScreenNext = new QPushButton( themePreviewFrame );
  themeScreenNext->setPixmap( QPixmap(QString(IMAGE_PATH)+"next.png") );
  themeScreenNext->setSizePolicy( QSizePolicy::Maximum, QSizePolicy::Maximum );
  QToolTip::add( themeScreenNext, tr("View next theme screenshot") );
  connect( themeScreenNext, SIGNAL(clicked()), SLOT(nextScreenShot()) );
  themeFeatures = new QTextBrowser( themePreviewFrame ); 
  themeFeatures->setFrameStyle( QFrame::Panel | QFrame::Sunken );
  themeFeatures->mimeSourceFactory()->setFilePath( QStringList(THEMES_PATH) );
  updatePreview();
  
  themePreviewGrid = new QGridLayout( themePreviewFrame, 5, 5, 0);  
  themePreviewGrid->addWidget( themePreviewLabel, 0, 0 );
  themePreviewGrid->addMultiCellWidget( themeScreenShot, 1, 1, 0, 4 );
  themePreviewGrid->addMultiCellWidget( screenShotLabel, 2, 2, 0, 4, Qt::AlignCenter );
  themePreviewGrid->setColStretch( 0, 1 );
  themePreviewGrid->addWidget( themeScreenPrev, 3, 1 );
  themePreviewGrid->addColSpacing( 2, 10 );
  themePreviewGrid->addWidget( themeScreenNext, 3, 3 );
  themePreviewGrid->setColStretch( 4, 1 );
  themePreviewGrid->addMultiCellWidget( themeFeatures, 4, 4, 0, 4 );

  //create buttons frame and widgets
  buttonsFrame = new QFrame( this );
  saveButton = new QPushButton( QPixmap(QString(IMAGE_PATH)+"save.png"), tr("Save"), buttonsFrame );
  saveButton->setSizePolicy( QSizePolicy::Maximum, QSizePolicy::Maximum );
  saveButton->setDefault(true);
  connect( saveButton, SIGNAL(clicked()), SLOT(save()) );
  cancelButton = new QPushButton( QPixmap(QString(IMAGE_PATH)+"button_cancel.png"), tr("Cancel"), buttonsFrame );
  cancelButton->setSizePolicy( QSizePolicy::Maximum, QSizePolicy::Maximum );
  connect( cancelButton, SIGNAL(clicked()), SLOT(cancel()) );
  buttonsGrid = new QGridLayout( buttonsFrame, 1, 5, 0 );
  buttonsGrid->setColStretch( 0, 1 );
  buttonsGrid->addWidget( saveButton, 0, 1 );
  buttonsGrid->addColSpacing( 2, 10 );
  buttonsGrid->addWidget( cancelButton, 0, 3 );
  buttonsGrid->setColStretch( 4, 1 );
  
  //place top level frames in grid
  mainGrid = new QGridLayout( this, 3, 2, 0);
  mainGrid->addWidget( themeSelectionFrame, 0, 0 );
  mainGrid->addWidget( themePreviewFrame, 0, 1 );
  mainGrid->addMultiCellWidget( locationFrame, 1, 1, 0, 1 );
  mainGrid->addMultiCellWidget( buttonsFrame, 2, 2, 0, 1 );
  
  //allow image and description region of select theme to expand to fit window
  mainGrid->setColStretch( 1, 1 );
  mainGrid->setRowStretch( 1, 1 );
  
  //set window to not be resizeable
  this->show();
  setFixedSize(size());
}
//==============================================
void SaveDialog::updatePreview()
{
  previewNum = 1;
  int i=1;
  QDir localDir( THEMES_PATH );
  while( localDir.exists( QString( themesList->currentText() + "/preview%1.png").arg(i) ) )
  {
    i++;
  }
  numPreviews = i-1;

  //update theme description if provided
  if(localDir.exists( themesList->currentText() + "/description.html" ))
  {
    themeFeatures->setSource( themesList->currentText() + "/description.html" );
  }
  
  //update preview image to provide one or default otherwise
  if(localDir.exists( themesList->currentText() + "/preview1.png") )
  {
    screenShotLabel->setText( QString( tr("Screenshot") ) + QString( " %1/%2").arg(previewNum).arg(numPreviews) );
    themeScreenShot->setPixmap( QPixmap(THEMES_PATH + themesList->currentText() + "/preview1.png") );
    themeScreenPrev->setEnabled(false);
    themeScreenNext->setEnabled(true);
  }
  else
  {
    screenShotLabel->setText( "" );
    themeScreenShot->setPixmap( QPixmap(QString(IMAGE_PATH)+"themePreview.png") );
    themeScreenPrev->setEnabled(false);
    themeScreenNext->setEnabled(false);
  }

}
//==============================================
void SaveDialog::save()
{
  accept();
}
//==============================================
void SaveDialog::cancel()
{
  reject();
}
//==============================================
void SaveDialog::prevScreenShot()
{
  previewNum--;
  themeScreenNext->setEnabled(true);
  if(previewNum == 1)
  {
    themeScreenPrev->setEnabled(false);
  }
  
  screenShotLabel->setText( QString( tr("Screenshot") ) + QString( " %1/%2").arg(previewNum).arg(numPreviews) );
  themeScreenShot->setPixmap( QPixmap( QString(THEMES_PATH + themesList->currentText() + "/preview%1.png").arg(previewNum) ) );
}
//==============================================
void SaveDialog::nextScreenShot()
{
  previewNum++;
  themeScreenPrev->setEnabled(true);
  if(previewNum == numPreviews)
  {
    themeScreenNext->setEnabled(false);
  }
  
  screenShotLabel->setText( QString( tr("Screenshot") ) + QString( " %1/%2").arg(previewNum).arg(numPreviews) );
  themeScreenShot->setPixmap( QPixmap( QString(THEMES_PATH + themesList->currentText() + "/preview%1.png").arg(previewNum) ) );
}
//==============================================
void SaveDialog::browse()
{
  QString dirName = QFileDialog::getSaveFileName( locationVal->text(),
                                                                          NULL,
                                                                          this,
                                                                          NULL,
                                                                          "Save as" );
  
  
  if(!dirName.isNull())
    locationVal->setText( dirName );
}
//==============================================
QString SaveDialog::getTheme()
{
  return themesList->currentText();
}
//==============================================
QString SaveDialog::getPath()
{
  return locationVal->text();
}
//==============================================
bool SaveDialog::selectThemeAndPath( QString titleMessage, 
                                                        QString defaultPath, 
                                                        QString &theme, 
                                                        QString &path )
{
  SaveDialog* dlg = new SaveDialog( titleMessage, defaultPath, theme );
  if( dlg->exec() == QDialog::Accepted )
  {
    theme = dlg->getTheme();
    path = dlg->getPath();
    delete dlg;
    return true;
  }
  else
  {
    delete dlg;
    return false;
  }
}
//==============================================
bool SaveDialog::themeAvailable(QString theme)
{
  //walk through the themes directory searching
  //for a directory with the name of the theme 
  //that also has a theme.xsl file inside it
  QDir localDir( THEMES_PATH );
  QStringList list = localDir.entryList( QDir::Dirs );
  QStringList::Iterator file;
  for ( file = list.begin(); file != list.end(); ++file ) 
  {
    if(localDir.exists( QString(*file) + "/theme.xsl") &&
      QString(*file) == theme)
      return true;
  }
  //theme not found
  return false;
}
//==============================================

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