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qgsmslayerbuilder.cpp
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qgsmslayerbuilder.cpp
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/***************************************************************************
qgsmslayerbuilder.cpp
---------------------
begin : July, 2008
copyright : (C) 2008 by Marco Hugentobler
email : marco dot hugentobler at karto dot baug dot ethz dot ch
***************************************************************************/
/***************************************************************************
* *
* 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. *
* *
***************************************************************************/
#include "qgsmslayerbuilder.h"
#include "qgsrasterlayer.h"
#include <QDir>
#include <QFileInfo>
#include <QStringList>
#include <ctime>
QgsMSLayerBuilder::QgsMSLayerBuilder()
{
}
QgsMSLayerBuilder::~QgsMSLayerBuilder()
{
}
QString QgsMSLayerBuilder::layerNameFromUri( const QString& uri ) const
{
//file based?
QFileInfo f( uri );
if ( f.exists() )
{
return f.baseName();
}
//http based?
if ( uri.startsWith( "http", Qt::CaseInsensitive ) )
{
return uri;
}
//database?
if ( uri.contains( "dbname" ) )
{
//take tablename
foreach( QString token, uri.split( " " ) )
{
if ( token.startsWith( "table" ) )
{
return token.section( "=", 1, 1 );
}
}
}
return "";
}
QString QgsMSLayerBuilder::createTempFile() const
{
//save the content of the file into a temporary location
//generate a name considering the current time
time_t seconds;
time( &seconds );
srand( seconds );
int randomNumber = rand();
QString tempFileName = QString::number( randomNumber );
QString tempFilePath;
// store temporary file in temporary qgis_wms_serv in temporary directory
QDir tempFileDir( QDir::tempPath() + "/qgis_wms_serv" );
if ( !tempFileDir.exists() ) //make sure the directory exists
{
QDir tmpDir( QDir::tempPath() );
tmpDir.mkdir( "qgis_wms_serv" );
}
tempFilePath = QDir::tempPath() + "/qgis_wms_serv/" + tempFileName;
return tempFilePath;
}
void QgsMSLayerBuilder::clearRasterSymbology( QgsRasterLayer* rl ) const
{
if ( rl )
{
if ( rl->rasterType() == QgsRasterLayer::GrayOrUndefined )
{
rl->setDrawingStyle( QgsRasterLayer::SingleBandPseudoColor );
}
}
}