/
qgsapplication.cpp
1046 lines (945 loc) · 31.1 KB
/
qgsapplication.cpp
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/***************************************************************************
qgsapplication.cpp - Accessors for application-wide data
--------------------------------------
Date : 02-Jan-2006
Copyright : (C) 2006 by Tom Elwertowski
Email : telwertowski at users dot sourceforge dot net
***************************************************************************
* *
* 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 "qgsapplication.h"
#include "qgslogger.h"
#include "qgsmaplayerregistry.h"
#include "qgsproviderregistry.h"
#include "qgsexception.h"
#include "qgsgeometry.h"
#include <QDir>
#include <QFile>
#include <QFileOpenEvent>
#include <QMessageBox>
#include <QPalette>
#include <QProcess>
#include <QSettings>
#include <QIcon>
#include <QPixmap>
#include <QThreadPool>
#ifndef Q_WS_WIN
#include <netinet/in.h>
#else
#include <winsock.h>
#endif
#include "qgsconfig.h"
#include <gdal.h>
#include <ogr_api.h>
#include <cpl_conv.h> // for setting gdal options
#include <sqlite3.h>
QObject * ABISYM( QgsApplication::mFileOpenEventReceiver );
QStringList ABISYM( QgsApplication::mFileOpenEventList );
QString ABISYM( QgsApplication::mPrefixPath );
QString ABISYM( QgsApplication::mPluginPath );
QString ABISYM( QgsApplication::mPkgDataPath );
QString ABISYM( QgsApplication::mLibraryPath );
QString ABISYM( QgsApplication::mLibexecPath );
QString ABISYM( QgsApplication::mThemeName );
QStringList ABISYM( QgsApplication::mDefaultSvgPaths );
QMap<QString, QString> ABISYM( QgsApplication::mSystemEnvVars );
QString ABISYM( QgsApplication::mConfigPath );
bool ABISYM( QgsApplication::mRunningFromBuildDir ) = false;
QString ABISYM( QgsApplication::mBuildSourcePath );
#ifdef _MSC_VER
QString ABISYM( QgsApplication::mCfgIntDir );
#endif
QString ABISYM( QgsApplication::mBuildOutputPath );
QStringList ABISYM( QgsApplication::mGdalSkipList );
int ABISYM( QgsApplication::mMaxThreads );
/*!
\class QgsApplication
\brief The QgsApplication class manages application-wide information.
This is a subclass of QApplication and should be instantiated in place of
QApplication. Most methods are static in keeping witn the design of QApplication.
This class hides platform-specific path information and provides
a portable way of referencing specific files and directories.
Ideally, hard-coded paths should appear only here and not in other modules
so that platform-conditional code is minimized and paths are easier
to change due to centralization.
*/
QgsApplication::QgsApplication( int & argc, char ** argv, bool GUIenabled, QString customConfigPath )
: QApplication( argc, argv, GUIenabled )
{
init( customConfigPath ); // init can also be called directly by e.g. unit tests that don't inherit QApplication.
}
void QgsApplication::init( QString customConfigPath )
{
if ( customConfigPath.isEmpty() )
{
customConfigPath = QString( "%1/.qgis%2/" ).arg( QDir::homePath() ).arg( QGis::QGIS_VERSION_INT / 10000 );
}
qRegisterMetaType<QgsGeometry::Error>( "QgsGeometry::Error" );
QString prefixPath( getenv( "QGIS_PREFIX_PATH" ) ? getenv( "QGIS_PREFIX_PATH" ) : applicationDirPath() );
// QgsDebugMsg( QString( "prefixPath(): %1" ).arg( prefixPath ) );
// check if QGIS is run from build directory (not the install directory)
QFile f;
// "/../../.." is for Mac bundled app in build directory
foreach ( QString path, QStringList() << "" << "/.." << "/bin" << "/../../.." )
{
f.setFileName( prefixPath + path + "/qgisbuildpath.txt" );
if ( f.exists() )
break;
}
if ( f.exists() && f.open( QIODevice::ReadOnly ) )
{
ABISYM( mRunningFromBuildDir ) = true;
ABISYM( mBuildSourcePath ) = f.readLine().trimmed();
ABISYM( mBuildOutputPath ) = f.readLine().trimmed();
qDebug( "Running from build directory!" );
qDebug( "- source directory: %s", ABISYM( mBuildSourcePath ).toUtf8().data() );
qDebug( "- output directory of the build: %s", ABISYM( mBuildOutputPath ).toUtf8().data() );
#ifdef _MSC_VER
ABISYM( mCfgIntDir ) = prefixPath.split( "/", QString::SkipEmptyParts ).last();
qDebug( "- cfg: %s", ABISYM( mCfgIntDir ).toUtf8().data() );
#endif
}
if ( ABISYM( mRunningFromBuildDir ) )
{
// we run from source directory - not installed to destination (specified prefix)
ABISYM( mPrefixPath ) = QString(); // set invalid path
#if defined(_MSC_VER) && !defined(USING_NMAKE)
setPluginPath( ABISYM( mBuildOutputPath ) + "/" + QString( QGIS_PLUGIN_SUBDIR ) + "/" + ABISYM( mCfgIntDir ) );
#else
setPluginPath( ABISYM( mBuildOutputPath ) + "/" + QString( QGIS_PLUGIN_SUBDIR ) );
#endif
setPkgDataPath( ABISYM( mBuildSourcePath ) ); // directly source path - used for: doc, resources, svg
ABISYM( mLibraryPath ) = ABISYM( mBuildOutputPath ) + "/" + QGIS_LIB_SUBDIR + "/";
#if defined(_MSC_VER) && !defined(USING_NMAKE)
ABISYM( mLibexecPath ) = ABISYM( mBuildOutputPath ) + "/" + QGIS_LIBEXEC_SUBDIR + "/" + ABISYM( mCfgIntDir ) + "/";
#else
ABISYM( mLibexecPath ) = ABISYM( mBuildOutputPath ) + "/" + QGIS_LIBEXEC_SUBDIR + "/";
#endif
}
else
{
char *prefixPath = getenv( "QGIS_PREFIX_PATH" );
if ( !prefixPath )
{
#if defined(Q_WS_MACX) || defined(Q_WS_WIN32) || defined(WIN32)
setPrefixPath( applicationDirPath(), true );
#elif defined(ANDROID)
// this is "/data/data/org.qgis.qgis" in android
QDir myDir( QDir::homePath() );
myDir.cdUp();
QString myPrefix = myDir.absolutePath();
setPrefixPath( myPrefix, true );
#else
QDir myDir( applicationDirPath() );
myDir.cdUp();
QString myPrefix = myDir.absolutePath();
setPrefixPath( myPrefix, true );
#endif
}
else
{
setPrefixPath( prefixPath, true );
}
}
if ( !customConfigPath.isEmpty() )
{
ABISYM( mConfigPath ) = customConfigPath + "/"; // make sure trailing slash is included
}
ABISYM( mDefaultSvgPaths ) << qgisSettingsDirPath() + QString( "svg/" );
// store system environment variables passed to application, before they are adjusted
QMap<QString, QString> systemEnvVarMap;
foreach ( const QString &varStr, QProcess::systemEnvironment() )
{
int pos = varStr.indexOf( QLatin1Char( '=' ) );
if ( pos == -1 )
continue;
QString varStrName = varStr.left( pos );
QString varStrValue = varStr.mid( pos + 1 );
systemEnvVarMap.insert( varStrName, varStrValue );
}
ABISYM( mSystemEnvVars ) = systemEnvVarMap;
// allow Qt to search for Qt plugins (e.g. sqldrivers) in our plugin directory
QCoreApplication::addLibraryPath( pluginPath() );
// set max. thread count to -1
// this should be read from QSettings but we don't know where they are at this point
// so we read actual value in main.cpp
ABISYM( mMaxThreads ) = -1;
}
QgsApplication::~QgsApplication()
{
}
bool QgsApplication::event( QEvent * event )
{
bool done = false;
if ( event->type() == QEvent::FileOpen )
{
// handle FileOpen event (double clicking a file icon in Mac OS X Finder)
if ( ABISYM( mFileOpenEventReceiver ) )
{
// Forward event to main window.
done = notify( ABISYM( mFileOpenEventReceiver ), event );
}
else
{
// Store filename because receiver has not registered yet.
// If QGIS has been launched by double clicking a file icon, FileOpen will be
// the first event; the main window is not yet ready to handle the event.
ABISYM( mFileOpenEventList ).append( static_cast<QFileOpenEvent *>( event )->file() );
done = true;
}
}
else
{
// pass other events to base class
done = QApplication::event( event );
}
return done;
}
bool QgsApplication::notify( QObject * receiver, QEvent * event )
{
bool done = false;
// Crashes in customization (especially on Mac), if we're not in the main/UI thread, see #5597
if ( thread() == receiver->thread() )
emit preNotify( receiver, event, &done );
if ( done )
return true;
// Send event to receiver and catch unhandled exceptions
done = true;
try
{
done = QApplication::notify( receiver, event );
}
catch ( QgsException & e )
{
QMessageBox::critical( activeWindow(), tr( "Exception" ), e.what() );
}
catch ( std::exception & e )
{
QMessageBox::critical( activeWindow(), tr( "Exception" ), e.what() );
}
catch ( ... )
{
QMessageBox::critical( activeWindow(), tr( "Exception" ), tr( "unknown exception" ) );
}
return done;
}
void QgsApplication::setFileOpenEventReceiver( QObject * receiver )
{
// Set receiver for FileOpen events
ABISYM( mFileOpenEventReceiver ) = receiver;
// Propagate any events collected before the receiver has registered.
if ( ABISYM( mFileOpenEventList ).count() > 0 )
{
QStringListIterator i( ABISYM( mFileOpenEventList ) );
while ( i.hasNext() )
{
QFileOpenEvent foe( i.next() );
QgsApplication::sendEvent( ABISYM( mFileOpenEventReceiver ), &foe );
}
ABISYM( mFileOpenEventList ).clear();
}
}
void QgsApplication::setPrefixPath( const QString &thePrefixPath, bool useDefaultPaths )
{
ABISYM( mPrefixPath ) = thePrefixPath;
#if defined(_MSC_VER)
if ( ABISYM( mPrefixPath ).endsWith( "/bin" ) )
{
ABISYM( mPrefixPath ).chop( 4 );
}
#endif
if ( useDefaultPaths && !ABISYM( mRunningFromBuildDir ) )
{
setPluginPath( ABISYM( mPrefixPath ) + "/" + QString( QGIS_PLUGIN_SUBDIR ) );
setPkgDataPath( ABISYM( mPrefixPath ) + "/" + QString( QGIS_DATA_SUBDIR ) );
}
ABISYM( mLibraryPath ) = ABISYM( mPrefixPath ) + "/" + QGIS_LIB_SUBDIR + "/";
ABISYM( mLibexecPath ) = ABISYM( mPrefixPath ) + "/" + QGIS_LIBEXEC_SUBDIR + "/";
}
void QgsApplication::setPluginPath( const QString &thePluginPath )
{
ABISYM( mPluginPath ) = thePluginPath;
}
void QgsApplication::setPkgDataPath( const QString &thePkgDataPath )
{
ABISYM( mPkgDataPath ) = thePkgDataPath;
QString mySvgPath = thePkgDataPath + ( ABISYM( mRunningFromBuildDir ) ? "/images/svg/" : "/svg/" );
// avoid duplicate entries
if ( !ABISYM( mDefaultSvgPaths ).contains( mySvgPath ) )
ABISYM( mDefaultSvgPaths ) << mySvgPath;
}
void QgsApplication::setDefaultSvgPaths( const QStringList& pathList )
{
ABISYM( mDefaultSvgPaths ) = pathList;
}
const QString QgsApplication::prefixPath()
{
if ( ABISYM( mRunningFromBuildDir ) )
{
qWarning( "!!! prefix path was requested, but it is not valid - we do not run from installed path !!!" );
}
return ABISYM( mPrefixPath );
}
const QString QgsApplication::pluginPath()
{
return ABISYM( mPluginPath );
}
const QString QgsApplication::pkgDataPath()
{
return ABISYM( mPkgDataPath );
}
const QString QgsApplication::defaultThemePath()
{
return ":/images/themes/default/";
}
const QString QgsApplication::activeThemePath()
{
return ":/images/themes/" + themeName() + "/";
}
QString QgsApplication::iconPath( QString iconFile )
{
// try active theme
QString path = activeThemePath();
if ( QFile::exists( path + iconFile ) )
return path + iconFile;
// use default theme
return defaultThemePath() + iconFile;
}
QIcon QgsApplication::getThemeIcon( const QString &theName )
{
QString myPreferredPath = activeThemePath() + QDir::separator() + theName;
QString myDefaultPath = defaultThemePath() + QDir::separator() + theName;
if ( QFile::exists( myPreferredPath ) )
{
return QIcon( myPreferredPath );
}
else if ( QFile::exists( myDefaultPath ) )
{
//could still return an empty icon if it
//doesnt exist in the default theme either!
return QIcon( myDefaultPath );
}
else
{
return QIcon();
}
}
// TODO: add some caching mechanism ?
QPixmap QgsApplication::getThemePixmap( const QString &theName )
{
QString myPreferredPath = activeThemePath() + QDir::separator() + theName;
QString myDefaultPath = defaultThemePath() + QDir::separator() + theName;
if ( QFile::exists( myPreferredPath ) )
{
return QPixmap( myPreferredPath );
}
else
{
//could still return an empty icon if it
//doesnt exist in the default theme either!
return QPixmap( myDefaultPath );
}
}
/*!
Set the theme path to the specified theme.
*/
void QgsApplication::setThemeName( const QString &theThemeName )
{
QString myPath = ":/images/themes/" + theThemeName + "/";
//check it exists and if not roll back to default theme
if ( QFile::exists( myPath ) )
{
ABISYM( mThemeName ) = theThemeName;
}
else
{
ABISYM( mThemeName ) = "default";
}
}
/*!
* Get the active theme name
*/
const QString QgsApplication::themeName()
{
return ABISYM( mThemeName );
}
/*!
Returns the path to the authors file.
*/
const QString QgsApplication::authorsFilePath()
{
return ABISYM( mPkgDataPath ) + QString( "/doc/AUTHORS" );
}
/*!
Returns the path to the contributors file.
*/
const QString QgsApplication::contributorsFilePath()
{
return ABISYM( mPkgDataPath ) + QString( "/doc/CONTRIBUTORS" );
}
/*!
Returns the path to the sponsors file.
*/
const QString QgsApplication::sponsorsFilePath()
{
return ABISYM( mPkgDataPath ) + QString( "/doc/SPONSORS" );
}
/*!
Returns the path to the donors file.
*/
const QString QgsApplication::donorsFilePath()
{
return ABISYM( mPkgDataPath ) + QString( "/doc/DONORS" );
}
/*!
Returns the path to the sponsors file.
@note Added in QGIS 1.1
*/
const QString QgsApplication::translatorsFilePath()
{
return ABISYM( mPkgDataPath ) + QString( "/doc/TRANSLATORS" );
}
/*!
Returns the path to the licence file.
*/
const QString QgsApplication::licenceFilePath()
{
return ABISYM( mPkgDataPath ) + QString( "/doc/LICENSE" );
}
/*!
Returns the path to the help application.
*/
const QString QgsApplication::helpAppPath()
{
QString helpAppPath;
#ifdef Q_OS_MACX
helpAppPath = applicationDirPath() + "/bin/qgis_help.app/Contents/MacOS";
#else
helpAppPath = libexecPath();
#endif
helpAppPath += "/qgis_help";
#ifdef Q_OS_WIN
helpAppPath += ".exe";
#endif
return helpAppPath;
}
/*!
Returns the path to the translation directory.
*/
const QString QgsApplication::i18nPath()
{
if ( ABISYM( mRunningFromBuildDir ) )
return ABISYM( mBuildOutputPath ) + QString( "/i18n" );
else
return ABISYM( mPkgDataPath ) + QString( "/i18n/" );
}
/*!
Returns the path to the master qgis.db file.
*/
const QString QgsApplication::qgisMasterDbFilePath()
{
return ABISYM( mPkgDataPath ) + QString( "/resources/qgis.db" );
}
/*!
Returns the path to the settings directory in user's home dir
*/
const QString QgsApplication::qgisSettingsDirPath()
{
return ABISYM( mConfigPath );
}
/*!
Returns the path to the user qgis.db file.
*/
const QString QgsApplication::qgisUserDbFilePath()
{
return qgisSettingsDirPath() + QString( "qgis.db" );
}
/*!
Returns the path to the splash screen image directory.
*/
const QString QgsApplication::splashPath()
{
return QString( ":/images/splash/" );
}
/*!
Returns the path to the icons image directory.
*/
const QString QgsApplication::iconsPath()
{
return ABISYM( mPkgDataPath ) + QString( "/images/icons/" );
}
/*!
Returns the path to the srs.db file.
*/
const QString QgsApplication::srsDbFilePath()
{
if ( ABISYM( mRunningFromBuildDir ) )
{
QString tempCopy = QDir::tempPath() + "/srs.db";
if ( !QFile( tempCopy ).exists() )
{
QFile f( ABISYM( mPkgDataPath ) + "/resources/srs.db" );
if ( !f.copy( tempCopy ) )
{
qFatal( "Could not create temporary copy" );
}
}
return tempCopy;
}
else
{
return ABISYM( mPkgDataPath ) + QString( "/resources/srs.db" );
}
}
/*!
Returns the paths to the svg directories.
*/
const QStringList QgsApplication::svgPaths()
{
//local directories to search when looking for an SVG with a given basename
//defined by user in options dialog
QSettings settings;
QStringList myPathList;
QString myPaths = settings.value( "svg/searchPathsForSVG", "" ).toString();
if ( !myPaths.isEmpty() )
{
myPathList = myPaths.split( "|" );
}
myPathList << ABISYM( mDefaultSvgPaths );
return myPathList;
}
const QString QgsApplication::userStyleV2Path()
{
return qgisSettingsDirPath() + QString( "symbology-ng-style.db" );
}
const QString QgsApplication::defaultStyleV2Path()
{
return ABISYM( mPkgDataPath ) + QString( "/resources/symbology-ng-style.db" );
}
const QString QgsApplication::libraryPath()
{
return ABISYM( mLibraryPath );
}
const QString QgsApplication::libexecPath()
{
return ABISYM( mLibexecPath );
}
QgsApplication::endian_t QgsApplication::endian()
{
return ( htonl( 1 ) == 1 ) ? XDR : NDR ;
}
void QgsApplication::initQgis()
{
// set the provider plugin path (this creates provider registry)
QgsProviderRegistry::instance( pluginPath() );
// create map layer registry if doesn't exist
QgsMapLayerRegistry::instance();
}
void QgsApplication::exitQgis()
{
delete QgsMapLayerRegistry::instance();
delete QgsProviderRegistry::instance();
}
QString QgsApplication::showSettings()
{
QString myEnvironmentVar( getenv( "QGIS_PREFIX_PATH" ) );
QString myState = tr( "Application state:\n"
"QGIS_PREFIX_PATH env var:\t\t%1\n"
"Prefix:\t\t%2\n"
"Plugin Path:\t\t%3\n"
"Package Data Path:\t%4\n"
"Active Theme Name:\t%5\n"
"Active Theme Path:\t%6\n"
"Default Theme Path:\t%7\n"
"SVG Search Paths:\t%8\n"
"User DB Path:\t%9\n" )
.arg( myEnvironmentVar )
.arg( prefixPath() )
.arg( pluginPath() )
.arg( pkgDataPath() )
.arg( themeName() )
.arg( activeThemePath() )
.arg( defaultThemePath() )
.arg( svgPaths().join( tr( "\n\t\t", "match indentation of application state" ) ) )
.arg( qgisMasterDbFilePath() );
return myState;
}
QString QgsApplication::reportStyleSheet()
{
//
// Make the style sheet desktop preferences aware by using qappliation
// palette as a basis for colors where appropriate
//
// QColor myColor1 = palette().highlight().color();
QColor myColor1( Qt::lightGray );
QColor myColor2 = myColor1;
myColor2 = myColor2.lighter( 110 ); //10% lighter
QString myStyle;
myStyle = "p.glossy{ background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1, "
" stop: 0 " + myColor1.name() + ","
" stop: 0.1 " + myColor2.name() + ","
" stop: 0.5 " + myColor1.name() + ","
" stop: 0.9 " + myColor2.name() + ","
" stop: 1 " + myColor1.name() + ");"
" color: black;"
" padding-left: 4px;"
" padding-top: 20px;"
" padding-bottom: 8px;"
" border: 1px solid #6c6c6c;"
"}"
"p.subheaderglossy{ background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1, "
" stop: 0 " + myColor1.name() + ","
" stop: 0.1 " + myColor2.name() + ","
" stop: 0.5 " + myColor1.name() + ","
" stop: 0.9 " + myColor2.name() + ","
" stop: 1 " + myColor1.name() + ");"
" font-weight: bold;"
" font-size: medium;"
" line-height: 1.1em;"
" width: 100%;"
" color: black;"
" padding-left: 4px;"
" padding-right: 4px;"
" padding-top: 20px;"
" padding-bottom: 8px;"
" border: 1px solid #6c6c6c;"
"}"
"th.glossy{ background-color: qlineargradient(x1:0, y1:0, x2:0, y2:1, "
" stop: 0 " + myColor1.name() + ","
" stop: 0.1 " + myColor2.name() + ","
" stop: 0.5 " + myColor1.name() + ","
" stop: 0.9 " + myColor2.name() + ","
" stop: 1 " + myColor1.name() + ");"
" color: black;"
" border: 1px solid #6c6c6c;"
"}"
".overview{ font: 1.82em; font-weight: bold;}"
"body{ background: white;"
" color: black;"
" font-family: arial,sans-serif;"
"}"
"h1{ background-color: #F6F6F6;"
" color: #8FB171; "
" font-size: x-large; "
" font-weight: normal;"
" font-family: luxi serif, georgia, times new roman, times, serif;"
" background: none;"
" padding: 0.75em 0 0;"
" margin: 0;"
" line-height: 3em;"
"}"
"h2{ background-color: #F6F6F6;"
" color: #8FB171; "
" font-size: medium; "
" font-weight: normal;"
" font-family: luxi serif, georgia, times new roman, times, serif;"
" background: none;"
" padding: 0.75em 0 0;"
" margin: 0;"
" line-height: 1.1em;"
"}"
"h3{ background-color: #F6F6F6;"
" color: #729FCF;"
" font-family: luxi serif, georgia, times new roman, times, serif;"
" font-weight: bold;"
" font-size: large;"
" text-align: right;"
" border-bottom: 5px solid #DCEB5C;"
"}"
"h4{ background-color: #F6F6F6;"
" color: #729FCF;"
" font-family: luxi serif, georgia, times new roman, times, serif;"
" font-weight: bold;"
" font-size: medium;"
" text-align: right;"
"}"
"h5{ background-color: #F6F6F6;"
" color: #729FCF;"
" font-family: luxi serif, georgia, times new roman, times, serif;"
" font-weight: bold;"
" font-size: small;"
" text-align: right;"
"}"
"a{ color: #729FCF;"
" font-family: arial,sans-serif;"
" font-size: small;"
"}"
"label{ background-color: #FFFFCC;"
" border: 1px solid black;"
" margin: 1px;"
" padding: 0px 3px; "
" font-size: small;"
"}";
return myStyle;
}
void QgsApplication::registerOgrDrivers()
{
if ( 0 >= OGRGetDriverCount() )
{
OGRRegisterAll();
}
}
QString QgsApplication::absolutePathToRelativePath( QString aPath, QString targetPath )
{
#if defined( Q_OS_WIN )
const Qt::CaseSensitivity cs = Qt::CaseInsensitive;
aPath.replace( "\\", "/" );
if ( aPath.startsWith( "//" ) )
{
// keep UNC prefix
aPath = "\\\\" + aPath.mid( 2 );
}
targetPath.replace( "\\", "/" );
if ( targetPath.startsWith( "//" ) )
{
// keep UNC prefix
targetPath = "\\\\" + targetPath.mid( 2 );
}
#else
const Qt::CaseSensitivity cs = Qt::CaseSensitive;
#endif
QStringList targetElems = targetPath.split( "/", QString::SkipEmptyParts );
QStringList aPathElems = aPath.split( "/", QString::SkipEmptyParts );
targetElems.removeAll( "." );
aPathElems.removeAll( "." );
// remove common part
int n = 0;
while ( aPathElems.size() > 0 &&
targetElems.size() > 0 &&
aPathElems[0].compare( targetElems[0], cs ) == 0 )
{
aPathElems.removeFirst();
targetElems.removeFirst();
n++;
}
if ( n == 0 )
{
// no common parts; might not even be a file
return aPath;
}
if ( targetElems.size() > 0 )
{
// go up to the common directory
for ( int i = 0; i < targetElems.size(); i++ )
{
aPathElems.insert( 0, ".." );
}
}
else
{
// let it start with . nevertheless,
// so relative path always start with either ./ or ../
aPathElems.insert( 0, "." );
}
return aPathElems.join( "/" );
}
QString QgsApplication::relativePathToAbsolutePath( QString rpath, QString targetPath )
{
// relative path should always start with ./ or ../
if ( !rpath.startsWith( "./" ) && !rpath.startsWith( "../" ) )
{
return rpath;
}
#if defined(Q_OS_WIN)
rpath.replace( "\\", "/" );
targetPath.replace( "\\", "/" );
bool uncPath = targetPath.startsWith( "//" );
#endif
QStringList srcElems = rpath.split( "/", QString::SkipEmptyParts );
QStringList targetElems = targetPath.split( "/", QString::SkipEmptyParts );
#if defined(Q_OS_WIN)
if ( uncPath )
{
targetElems.insert( 0, "" );
targetElems.insert( 0, "" );
}
#endif
// append source path elements
targetElems << srcElems;
targetElems.removeAll( "." );
// resolve ..
int pos;
while (( pos = targetElems.indexOf( ".." ) ) > 0 )
{
// remove preceding element and ..
targetElems.removeAt( pos - 1 );
targetElems.removeAt( pos - 1 );
}
#if !defined(Q_OS_WIN)
// make path absolute
targetElems.prepend( "" );
#endif
return targetElems.join( "/" );
}
void QgsApplication::skipGdalDriver( QString theDriver )
{
if ( ABISYM( mGdalSkipList ).contains( theDriver ) || theDriver.isEmpty() )
{
return;
}
ABISYM( mGdalSkipList ) << theDriver;
applyGdalSkippedDrivers();
}
void QgsApplication::restoreGdalDriver( QString theDriver )
{
if ( !ABISYM( mGdalSkipList ).contains( theDriver ) )
{
return;
}
int myPos = ABISYM( mGdalSkipList ).indexOf( theDriver );
if ( myPos >= 0 )
{
ABISYM( mGdalSkipList ).removeAt( myPos );
}
applyGdalSkippedDrivers();
}
void QgsApplication::applyGdalSkippedDrivers()
{
ABISYM( mGdalSkipList ).removeDuplicates();
QString myDriverList = ABISYM( mGdalSkipList ).join( " " );
QgsDebugMsg( "Gdal Skipped driver list set to:" );
QgsDebugMsg( myDriverList );
CPLSetConfigOption( "GDAL_SKIP", myDriverList.toUtf8() );
GDALAllRegister(); //to update driver list and skip missing ones
}
bool QgsApplication::createDB( QString *errorMessage )
{
// set a working directory up for gdal to write .aux.xml files into
// for cases where the raster dir is read only to the user
// if the env var is already set it will be used preferentially
QString myPamPath = qgisSettingsDirPath() + QString( "gdal_pam/" );
QDir myDir( myPamPath );
if ( !myDir.exists() )
{
myDir.mkpath( myPamPath ); //fail silently
}
#if defined(Q_WS_WIN32) || defined(WIN32)
CPLSetConfigOption( "GDAL_PAM_PROXY_DIR", myPamPath.toUtf8() );
#else
//under other OS's we use an environment var so the user can
//override the path if he likes
int myChangeFlag = 0; //whether we want to force the env var to change
setenv( "GDAL_PAM_PROXY_DIR", myPamPath.toUtf8(), myChangeFlag );
#endif
// Check qgis.db and make private copy if necessary
QFile qgisPrivateDbFile( QgsApplication::qgisUserDbFilePath() );
// first we look for ~/.qgis/qgis.db
if ( !qgisPrivateDbFile.exists() )
{
// if it doesnt exist we copy it in from the global resources dir
QString qgisMasterDbFileName = QgsApplication::qgisMasterDbFilePath();
QFile masterFile( qgisMasterDbFileName );
// Must be sure there is destination directory ~/.qgis
QDir().mkpath( QgsApplication::qgisSettingsDirPath() );
//now copy the master file into the users .qgis dir
bool isDbFileCopied = masterFile.copy( qgisPrivateDbFile.fileName() );
if ( !isDbFileCopied )
{
if ( errorMessage )
{
*errorMessage = tr( "[ERROR] Can not make qgis.db private copy" );
}
return false;
}
}
else
{
// migrate if necessary
sqlite3 *db;
if ( sqlite3_open( QgsApplication::qgisUserDbFilePath().toUtf8().constData(), &db ) != SQLITE_OK )
{
if ( errorMessage )
{
*errorMessage = tr( "Could not open qgis.db" );
}
return false;
}
char *errmsg;
int res = sqlite3_exec( db, "SELECT epsg FROM tbl_srs LIMIT 0", 0, 0, &errmsg );
if ( res == SQLITE_OK )
{
// epsg column exists => need migration
if ( sqlite3_exec( db,
"ALTER TABLE tbl_srs RENAME TO tbl_srs_bak;"
"CREATE TABLE tbl_srs ("
"srs_id INTEGER PRIMARY KEY,"
"description text NOT NULL,"
"projection_acronym text NOT NULL,"
"ellipsoid_acronym NOT NULL,"
"parameters text NOT NULL,"
"srid integer,"
"auth_name varchar,"
"auth_id varchar,"
"is_geo integer NOT NULL,"
"deprecated boolean);"
"CREATE INDEX idx_srsauthid on tbl_srs(auth_name,auth_id);"
"INSERT INTO tbl_srs(srs_id,description,projection_acronym,ellipsoid_acronym,parameters,srid,auth_name,auth_id,is_geo,deprecated) SELECT srs_id,description,projection_acronym,ellipsoid_acronym,parameters,srid,'','',is_geo,0 FROM tbl_srs_bak;"
"DROP TABLE tbl_srs_bak", 0, 0, &errmsg ) != SQLITE_OK
)
{
if ( errorMessage )
{
*errorMessage = tr( "Migration of private qgis.db failed.\n%1" ).arg( QString::fromUtf8( errmsg ) );
}
sqlite3_free( errmsg );
sqlite3_close( db );
return false;
}
}
else
{
sqlite3_free( errmsg );
}
if ( sqlite3_exec( db, "DROP VIEW vw_srs", 0, 0, &errmsg ) != SQLITE_OK )
{
QgsDebugMsg( QString( "vw_srs didn't exists in private qgis.db: %1" ).arg( errmsg ) );
}
if ( sqlite3_exec( db,
"CREATE VIEW vw_srs AS"
" SELECT"
" a.description AS description"
",a.srs_id AS srs_id"