int QgsSVGDiagramFactoryWidget::addDirectoryToPreview( const QString& path )
{
//go through all files of a directory
QDir directory( path );
if ( !directory.exists() || !directory.isReadable() )
{
return 1; //error
}
QFileInfoList fileList = directory.entryInfoList( QDir::Files );
QFileInfoList::const_iterator fileIt = fileList.constBegin();
QProgressDialog progress( "Adding Icons...", "Abort", 0, fileList.size() - 1, this );
//cancel button does not seem to work properly with modal dialog
//progress.setWindowModality(Qt::WindowModal);
int counter = 0;
for ( ; fileIt != fileList.constEnd(); ++fileIt )
{
progress.setLabelText( tr( "Creating icon for file %1" ).arg( fileIt->fileName() ) );
progress.setValue( counter );
QCoreApplication::processEvents();
if ( progress.wasCanceled() )
{
break;
}
QString filePath = fileIt->absoluteFilePath();
//test if file is svg or pixel format
bool fileIsSvg = testSvgFile( filePath );
//exclude files that are not svg or image
if ( !fileIsSvg )
{
++counter; continue;
}
QListWidgetItem * listItem = new QListWidgetItem( mPreviewListWidget );
if ( fileIsSvg )
{
QIcon icon( filePath );
listItem->setIcon( icon );
}
listItem->setText( "" );
//store the absolute icon file path as user data
listItem->setData( Qt::UserRole, fileIt->absoluteFilePath() );
++counter;
}
return 0;
}
void QgsSVGDiagramFactoryWidget::on_mPictureBrowseButton_clicked()
{
QString openDir;
QString lineEditText = mPictureLineEdit->text();
if ( !lineEditText.isEmpty() )
{
QFileInfo openDirFileInfo( lineEditText );
openDir = openDirFileInfo.path();
}
//show file dialog
QString filePath = QFileDialog::getOpenFileName( 0, tr( "Select svg file" ), openDir );
if ( filePath.isEmpty() )
{
return;
}
//check if file exists
QFileInfo fileInfo( filePath );
if ( !fileInfo.exists() || !fileInfo.isReadable() )
{
QMessageBox::critical( 0, "Invalid file", "Error, file does not exist or is not readable" );
return;
}
//check if it is a valid svg file
if ( !testSvgFile( filePath ) )
{
QMessageBox::critical( 0, "Invalid file", "Error, the selected file is not a valid svg file" );
return;
}
mPictureLineEdit->blockSignals( true );
mPictureLineEdit->setText( filePath );
mPictureLineEdit->blockSignals( false );
}
int QgsComposerPictureWidget::addDirectoryToPreview( const QString& path )
{
//go through all files of a directory
QDir directory( path );
if ( !directory.exists() || !directory.isReadable() )
{
return 1; //error
}
QFileInfoList fileList = directory.entryInfoList( QDir::Files );
QFileInfoList::const_iterator fileIt = fileList.constBegin();
QProgressDialog progress( "Adding Icons...", "Abort", 0, fileList.size() - 1, this );
//cancel button does not seem to work properly with modal dialog
//progress.setWindowModality(Qt::WindowModal);
int counter = 0;
for ( ; fileIt != fileList.constEnd(); ++fileIt )
{
progress.setLabelText( tr( "Creating icon for file %1" ).arg( fileIt->fileName() ) );
progress.setValue( counter );
QCoreApplication::processEvents();
if ( progress.wasCanceled() )
{
break;
}
QString filePath = fileIt->absoluteFilePath();
//test if file is svg or pixel format
bool fileIsPixel = false;
bool fileIsSvg = testSvgFile( filePath );
if ( !fileIsSvg )
{
fileIsPixel = testImageFile( filePath );
}
//exclude files that are not svg or image
if ( !fileIsSvg && !fileIsPixel )
{
++counter; continue;
}
QListWidgetItem * listItem = new QListWidgetItem( mPreviewListWidget );
listItem->setFlags( Qt::ItemIsSelectable | Qt::ItemIsEnabled );
if ( fileIsSvg )
{
QIcon icon( filePath );
listItem->setIcon( icon );
}
else //for pixel formats: create icon from scaled pixmap
{
QPixmap iconPixmap( filePath );
if ( iconPixmap.isNull() )
{
++counter; continue; //unknown file format or other problem
}
//set pixmap hardcoded to 30/30, same as icon size for mPreviewListWidget
QPixmap scaledPixmap( iconPixmap.scaled( QSize( 30, 30 ), Qt::KeepAspectRatio ) );
QIcon icon( scaledPixmap );
listItem->setIcon( icon );
}
listItem->setText( "" );
//store the absolute icon file path as user data
listItem->setData( Qt::UserRole, fileIt->absoluteFilePath() );
++counter;
}
return 0;
}
