/
qgsgrassmodule.cpp
3232 lines (2679 loc) · 84.8 KB
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qgsgrassmodule.cpp
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/***************************************************************************
qgsgrasstools.cpp
-------------------
begin : March, 2005
copyright : (C) 2005 by Radim Blazek
email : blazek@itc.it
***************************************************************************/
/***************************************************************************
* *
* 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 "qgsgrassmodule.h"
#include "qgsgrassmapcalc.h"
#include "qgsgrassplugin.h"
#include "qgsgrassselect.h"
#include "qgsgrasstools.h"
#include "qgsgrassprovider.h"
#include "qgsgrassutils.h"
#include "qgsgrass.h"
#include "qgisinterface.h"
#include "qgsapplication.h"
#include "qgsdataprovider.h"
#include "qgsdatasourceuri.h"
#include "qgsfeature.h"
#include "qgslogger.h"
#include "qgsmapcanvas.h"
#include "qgsmaplayer.h"
#include "qgsvectorlayer.h"
#include <typeinfo>
#include <QComboBox>
#include <QDomDocument>
#include <QFileDialog>
#include <QLineEdit>
#include <QMessageBox>
#include <QSvgRenderer>
extern "C"
{
#include <grass/Vect.h>
}
#include <gdal.h> // to collect version information
#if defined(WIN32)
#include <windows.h>
static QString getShortPath( const QString &path )
{
TCHAR buf[MAX_PATH];
GetShortPathName( path.toAscii().data(), buf, MAX_PATH );
return buf;
}
#endif
bool QgsGrassModule::mExecPathInited = 0;
QStringList QgsGrassModule::mExecPath;
QString QgsGrassModule::findExec( QString file )
{
QgsDebugMsg( "called." );
// Init mExecPath
// Windows searches first in current directory
if ( !mExecPathInited )
{
QString path = getenv( "PATH" );
QgsDebugMsg( "path = " + path );
#ifdef WIN32
mExecPath = path.split( ";" );
mExecPath.prepend( getShortPath( QgsApplication::applicationDirPath() ) );
#else
mExecPath = path.split( ":" );
mExecPath.prepend( QgsApplication::applicationDirPath() );
#endif
mExecPathInited = true;
}
if ( QFile::exists( file ) ) return file; // full path
#ifdef WIN32
// On windows try .bat first
for ( QStringList::iterator it = mExecPath.begin();
it != mExecPath.end(); ++it )
{
QString full = *it + "/" + file + ".bat";
if ( QFile::exists( full ) )
{
return full;
}
}
// .exe next
for ( QStringList::iterator it = mExecPath.begin();
it != mExecPath.end(); ++it )
{
QString full = *it + "/" + file + ".exe";
if ( QFile::exists( full ) )
{
return full;
}
}
// and then try if it's a script (w/o extension)
#endif
// Search for module
for ( QStringList::iterator it = mExecPath.begin();
it != mExecPath.end(); ++it )
{
QString full = *it + "/" + file;
if ( QFile::exists( full ) )
{
return full;
}
}
return QString();
}
bool QgsGrassModule::inExecPath( QString file )
{
if ( findExec( file ).isNull() ) return false;
return true;
}
QStringList QgsGrassModule::execArguments( QString module )
{
QString exe;
QStringList arguments;
exe = QgsGrassModule::findExec( module );
if ( exe.isNull() )
{
return arguments;
}
arguments.append( exe );
return arguments;
}
QgsGrassModule::QgsGrassModule( QgsGrassTools *tools, QString moduleName, QgisInterface *iface,
QString path, QWidget * parent, Qt::WFlags f )
: QgsGrassModuleBase( ), mSuccess( false )
{
QgsDebugMsg( "called" );
setupUi( this );
lblModuleName->setText( tr( "Module: %1" ).arg( moduleName ) );
mPath = path;
mTools = tools;
mIface = iface;
mCanvas = mIface->mapCanvas();
mParent = parent;
/* Read module description and create options */
// Open QGIS module description
QString mpath = mPath + ".qgm";
QFile qFile( mpath );
if ( !qFile.exists() )
{
QMessageBox::warning( 0, tr( "Warning" ), tr( "The module file (%1) not found." ).arg( mpath ) );
return;
}
if ( ! qFile.open( QIODevice::ReadOnly ) )
{
QMessageBox::warning( 0, tr( "Warning" ), tr( "Cannot open module file (%1)" ).arg( mpath ) );
return;
}
QDomDocument qDoc( "qgisgrassmodule" );
QString err;
int line, column;
if ( !qDoc.setContent( &qFile, &err, &line, &column ) )
{
QString errmsg = tr( "Cannot read module file (%1)" ).arg( mpath )
+ tr( "\n%1\nat line %2 column %3" ).arg( err ).arg( line ).arg( column );
QgsDebugMsg( errmsg );
QMessageBox::warning( 0, tr( "Warning" ), errmsg );
qFile.close();
return;
}
qFile.close();
QDomElement qDocElem = qDoc.documentElement();
// Read GRASS module description
QString xName = qDocElem.attribute( "module" );
QString xDocName = qDocElem.attribute( "manual" );
if ( xDocName.isEmpty() )
{
xDocName = xName;
}
// Binary modules on windows has .exe extension
// but not all modules have to be binary (can be scripts)
// => test if the module is in path and if it is not
// add .exe and test again
#ifdef WIN32
if ( inExecPath( xName ) )
{
mXName = xName;
}
else if ( inExecPath( xName + ".exe" ) )
{
mXName = xName + ".exe";
}
else
{
QgsDebugMsg( "Module " + xName + " not found" );
QMessageBox::warning( 0, tr( "Warning" ), tr( "Module %1 not found" ).arg( xName ) );
return;
}
#else
mXName = xName;
#endif
if ( xName == "r.mapcalc" )
{
QGridLayout *layout = new QGridLayout( mTabWidget->widget( 0 ) );
mOptions = new QgsGrassMapcalc( mTools, this,
mIface, mTabWidget->widget( 0 ) );
QWidget *w = dynamic_cast<QWidget *>( mOptions );
layout->addWidget( w, 0, 0 );
}
else
{
mOptions = new QgsGrassModuleStandardOptions( mTools, this,
mIface, mXName, qDocElem, mTabWidget->widget( 0 ) );
}
// Hide display if there is no output
if ( mOptions->output( QgsGrassModuleOption::Vector ).size() == 0
&& mOptions->output( QgsGrassModuleOption::Raster ).size() == 0 )
{
mViewButton->hide();
}
mViewButton->setEnabled( false );
// Create manual if available
QString gisBase = getenv( "GISBASE" );
QString manPath = gisBase + "/docs/html/" + xDocName + ".html";
QFile manFile( manPath );
if ( manFile.exists() )
{
mManualTextBrowser->setSource( QUrl::fromLocalFile( manPath ) );
}
else
{
mManualTextBrowser->clear();
mManualTextBrowser->textCursor().insertImage( ":/grass/error.png" );
mManualTextBrowser->insertPlainText( tr( "Cannot find man page %1" ).arg( manPath ) );
mManualTextBrowser->insertPlainText( tr( "Please ensure you have the GRASS documentation installed." ) );
}
connect( &mProcess, SIGNAL( readyReadStandardOutput() ), this, SLOT( readStdout() ) );
connect( &mProcess, SIGNAL( readyReadStandardError() ), this, SLOT( readStderr() ) );
connect( &mProcess, SIGNAL( finished( int, QProcess::ExitStatus ) ), this, SLOT( finished( int, QProcess::ExitStatus ) ) );
const char *env = "GRASS_MESSAGE_FORMAT=gui";
char *envstr = new char[strlen( env )+1];
strcpy( envstr, env );
putenv( envstr );
mOutputTextBrowser->setReadOnly( TRUE );
}
/******************* QgsGrassModuleOptions *******************/
QgsGrassModuleOptions::QgsGrassModuleOptions(
QgsGrassTools *tools, QgsGrassModule *module,
QgisInterface *iface )
{
QgsDebugMsg( "called." );
mTools = tools;
mModule = module;
mIface = iface;
mCanvas = mIface->mapCanvas();
}
QgsGrassModuleOptions::~QgsGrassModuleOptions()
{
}
QStringList QgsGrassModuleOptions::arguments()
{
return QStringList();
}
/*************** QgsGrassModuleStandardOptions ***********************/
QgsGrassModuleStandardOptions::QgsGrassModuleStandardOptions(
QgsGrassTools *tools, QgsGrassModule *module,
QgisInterface *iface,
QString xname, QDomElement qDocElem,
QWidget * parent, Qt::WFlags f )
: QgsGrassModuleOptions( tools, module, iface ),
QWidget( parent, f )
{
QgsDebugMsg( "called." );
QgsDebugMsg( QString( "PATH = %1" ).arg( getenv( "PATH" ) ) );
// Attention!: sh.exe (MSYS) sets $0 in scripts to file name
// without full path. Strange because when run from msys.bat
// $0 is set to full path. GRASS scripts call
// exec g.parser "$0" "$@"
// and it fails -> find and run with full path
mXName = xname;
mParent = parent;
QStringList arguments = QgsGrassModule::execArguments( mXName );
if ( arguments.size() == 0 )
{
QMessageBox::warning( 0, tr( "Warning" ), tr( "Cannot find module %1" ).arg( mXName ) );
return;
}
QString cmd = arguments.takeFirst();
arguments.append( "--interface-description" );
QProcess process( this );
process.start( cmd, arguments );
// ? Does binary on Win need .exe extention ?
// Return code 255 (-1) was correct in GRASS < 6.1.0
if ( !process.waitForFinished()
|| ( process.exitCode() != 0 && process.exitCode() != 255 ) )
{
QgsDebugMsg( "process.exitCode() = " + QString::number( process.exitCode() ) );
QMessageBox::warning( 0, tr( "Warning" ),
tr( "Cannot start module %1" ).arg( mXName )
+ tr( "<br>command: %1 %2<br>%3<br>%4" )
.arg( cmd ).arg( arguments.join( " " ) )
.arg( process.readAllStandardOutput().constData() )
.arg( process.readAllStandardError().constData() ) );
return;
}
QByteArray gDescArray = process.readAllStandardOutput();
QByteArray errArray = process.readAllStandardError();
QDomDocument gDoc( "task" );
QString err;
int line, column;
if ( !gDoc.setContent(( QByteArray )gDescArray, &err, &line, &column ) )
{
QString errmsg = tr( "Cannot read module description (%1):" ).arg( mXName )
+ tr( "\n%1\nat line %2 column %3" ).arg( err ).arg( line ).arg( column );
QgsDebugMsg( errmsg );
QgsDebugMsg( QString( gDescArray ) );
QgsDebugMsg( QString( errArray ) );
QMessageBox::warning( 0, tr( "Warning" ), errmsg );
return;
}
QDomElement gDocElem = gDoc.documentElement();
// Read QGIS options and create controls
QDomNode n = qDocElem.firstChild();
//
//Set up dynamic inside a scroll box
//
QVBoxLayout * mypOuterLayout = new QVBoxLayout( mParent );
mypOuterLayout->setContentsMargins( 0, 0, 0, 0 );
QScrollArea * mypScrollArea = new QScrollArea();
//transfers scroll area ownership so no need to call delete
mypOuterLayout->addWidget( mypScrollArea );
QFrame * mypInnerFrame = new QFrame();
mypInnerFrame->setFrameShape( QFrame::NoFrame );
mypInnerFrame->setFrameShadow( QFrame::Plain );
//transfers frame ownership so no need to call delete
mypScrollArea->setWidget( mypInnerFrame );
mypScrollArea->setWidgetResizable( true );
QVBoxLayout *layout = new QVBoxLayout( mypInnerFrame );
while ( !n.isNull() )
{
QDomElement e = n.toElement();
if ( !e.isNull() )
{
QString optionType = e.tagName();
QgsDebugMsg( "optionType = " + optionType );
QString key = e.attribute( "key" );
QgsDebugMsg( "key = " + key );
QDomNode gnode = QgsGrassModule::nodeByKey( gDocElem, key );
if ( gnode.isNull() )
{
QMessageBox::warning( 0, tr( "Warning" ), tr( "Cannot find key %1" ).arg( key ) );
return;
}
if ( optionType == "option" )
{
bool created = false;
// Check option type and create appropriate control
QDomNode promptNode = gnode.namedItem( "gisprompt" );
if ( !promptNode.isNull() )
{
QDomElement promptElem = promptNode.toElement();
QString element = promptElem.attribute( "element" );
QString age = promptElem.attribute( "age" );
//QgsDebugMsg("element = " + element + " age = " + age);
if ( age == "old" && ( element == "vector" || element == "cell" ) )
{
QgsGrassModuleInput *mi = new QgsGrassModuleInput(
mModule, this, key, e, gDocElem, gnode, mParent );
layout->addWidget( mi );
created = true;
mItems.push_back( mi );
}
}
if ( !created )
{
QgsGrassModuleOption *so = new QgsGrassModuleOption(
mModule, key, e, gDocElem, gnode, mParent );
layout->addWidget( so );
created = true;
mItems.push_back( so );
}
}
else if ( optionType == "ogr" )
{
QgsGrassModuleGdalInput *mi = new QgsGrassModuleGdalInput(
mModule, QgsGrassModuleGdalInput::Ogr, key, e,
gDocElem, gnode, mParent );
layout->addWidget( mi );
mItems.push_back( mi );
}
else if ( optionType == "gdal" )
{
QgsGrassModuleGdalInput *mi = new QgsGrassModuleGdalInput(
mModule, QgsGrassModuleGdalInput::Gdal, key, e,
gDocElem, gnode, mParent );
layout->addWidget( mi );
mItems.push_back( mi );
}
else if ( optionType == "field" )
{
QgsGrassModuleField *mi = new QgsGrassModuleField(
mModule, this, key, e,
gDocElem, gnode, mParent );
layout->addWidget( mi );
mItems.push_back( mi );
}
else if ( optionType == "selection" )
{
QgsGrassModuleSelection *mi = new QgsGrassModuleSelection(
mModule, this, key, e,
gDocElem, gnode, mParent );
layout->addWidget( mi );
mItems.push_back( mi );
}
else if ( optionType == "file" )
{
QgsGrassModuleFile *mi = new QgsGrassModuleFile(
mModule, key, e, gDocElem, gnode, mParent );
layout->addWidget( mi );
mItems.push_back( mi );
}
else if ( optionType == "flag" )
{
QgsGrassModuleFlag *flag = new QgsGrassModuleFlag(
mModule, key, e, gDocElem, gnode, mParent );
layout->addWidget( flag );
mItems.push_back( flag );
}
}
n = n.nextSibling();
}
// Create list of flags
n = gDocElem.firstChild();
while ( !n.isNull() )
{
QDomElement e = n.toElement();
if ( !e.isNull() )
{
QString optionType = e.tagName();
QgsDebugMsg( "optionType = " + optionType );
if ( optionType == "flag" )
{
QString name = e.attribute( "name" ).trimmed();
QgsDebugMsg( "name = " + name );
mFlagNames.append( name );
}
}
n = n.nextSibling();
}
layout->addStretch();
}
QStringList QgsGrassModuleStandardOptions::arguments()
{
QStringList arg;
for ( unsigned int i = 0; i < mItems.size(); i++ )
{
QStringList list = mItems[i]->options();
for ( QStringList::Iterator it = list.begin();
it != list.end(); ++it )
{
arg.append( *it );
}
}
return arg;
}
QgsGrassModuleItem *QgsGrassModuleStandardOptions::item( QString id )
{
QgsDebugMsg( "id = " + id );
for ( unsigned int i = 0; i < mItems.size(); i++ )
{
if ( mItems[i]->id() == id )
{
return mItems[i];
}
}
QMessageBox::warning( 0, tr( "Warning" ), tr( "Item with id %1 not found" ).arg( id ) );
return 0;
}
QStringList QgsGrassModuleStandardOptions::checkOutput()
{
QgsDebugMsg( "called." );
QStringList list;
for ( unsigned int i = 0; i < mItems.size(); i++ )
{
if ( typeid( *( mItems[i] ) ) != typeid( QgsGrassModuleOption ) )
{
continue;
}
QgsGrassModuleOption *opt =
dynamic_cast<QgsGrassModuleOption *>( mItems[i] );
QgsDebugMsg( "opt->key() = " + opt->key() );
if ( opt->isOutput() )
{
QString out = opt->outputExists();
if ( !out.isNull() )
{
list.append( out );
}
}
}
return list;
}
void QgsGrassModuleStandardOptions::freezeOutput()
{
QgsDebugMsg( "called." );
#ifdef WIN32
for ( unsigned int i = 0; i < mItems.size(); i++ )
{
if ( typeid( *( mItems[i] ) ) != typeid( QgsGrassModuleOption ) )
{
continue;
}
QgsGrassModuleOption *opt =
dynamic_cast<QgsGrassModuleOption *>( mItems[i] );
QgsDebugMsg( "opt->key() = " + opt->key() );
if ( opt->isOutput()
&& opt->outputType() == QgsGrassModuleOption::Vector )
{
QgsDebugMsg( "freeze vector layers" );
QChar sep = '/';
int nlayers = mCanvas->layerCount();
for ( int i = 0; i < nlayers; i++ )
{
QgsMapLayer *layer = mCanvas->layer( i );
if ( layer->type() != QgsMapLayer::VectorLayer ) continue;
QgsVectorLayer *vector = ( QgsVectorLayer* )layer;
if ( vector->providerType() != "grass" ) continue;
//TODO dynamic_cast ?
QgsGrassProvider *provider = ( QgsGrassProvider * ) vector->dataProvider();
// TODO add map() mapset() location() gisbase() to grass provider
QString source = QDir::cleanPath( provider->dataSourceUri() );
QgsDebugMsg( "source = " + source );
// Check GISBASE and LOCATION
QStringList split = source.split( sep );
if ( split.size() < 4 ) continue;
split.pop_back(); // layer
QString map = split.last();
split.pop_back(); // map
QString mapset = split.last();
split.pop_back(); // mapset
QString loc = source.remove( QRegExp( "/[^/]+/[^/]+/[^/]+$" ) );
loc = QDir( loc ).canonicalPath();
QDir curlocDir( QgsGrass::getDefaultGisdbase() + sep + QgsGrass::getDefaultLocation() );
QString curloc = curlocDir.canonicalPath();
if ( loc != curloc ) continue;
if ( mapset != QgsGrass::getDefaultMapset() ) continue;
if ( provider->isFrozen() ) continue;
provider->freeze();
}
}
}
#endif
}
void QgsGrassModuleStandardOptions::thawOutput()
{
QgsDebugMsg( "called." );
#ifdef WIN32
for ( unsigned int i = 0; i < mItems.size(); i++ )
{
if ( typeid( *( mItems[i] ) ) != typeid( QgsGrassModuleOption ) )
{
continue;
}
QgsGrassModuleOption *opt =
dynamic_cast<QgsGrassModuleOption *>( mItems[i] );
QgsDebugMsg( "opt->key() = " + opt->key() );
if ( opt->isOutput()
&& opt->outputType() == QgsGrassModuleOption::Vector )
{
QgsDebugMsg( "thaw vector layers" );
QChar sep = '/';
int nlayers = mCanvas->layerCount();
for ( int i = 0; i < nlayers; i++ )
{
QgsMapLayer *layer = mCanvas->layer( i );
if ( layer->type() != QgsMapLayer::VectorLayer ) continue;
QgsVectorLayer *vector = ( QgsVectorLayer* )layer;
if ( vector->providerType() != "grass" ) continue;
//TODO dynamic_cast ?
QgsGrassProvider *provider = ( QgsGrassProvider * ) vector->dataProvider();
// TODO add map() mapset() location() gisbase() to grass provider
QString source = QDir::cleanPath( provider->dataSourceUri() );
QgsDebugMsg( "source = " + source );
// Check GISBASE and LOCATION
QStringList split = source.split( sep );
if ( split.size() < 4 ) continue;
split.pop_back(); // layer
QString map = split.last();
split.pop_back(); // map
QString mapset = split.last();
split.pop_back(); // mapset
QString loc = source.remove( QRegExp( "/[^/]+/[^/]+/[^/]+$" ) );
loc = QDir( loc ).canonicalPath();
QDir curlocDir( QgsGrass::getDefaultGisdbase() + sep + QgsGrass::getDefaultLocation() );
QString curloc = curlocDir.canonicalPath();
if ( loc != curloc ) continue;
if ( mapset != QgsGrass::getDefaultMapset() ) continue;
if ( !provider->isFrozen() ) continue;
provider->thaw();
}
}
}
#endif
}
QStringList QgsGrassModuleStandardOptions::output( int type )
{
QgsDebugMsg( "called." );
QStringList list;
for ( unsigned int i = 0; i < mItems.size(); i++ )
{
if ( typeid( *( mItems[i] ) ) != typeid( QgsGrassModuleOption ) )
{
continue;
}
QgsGrassModuleOption *opt =
dynamic_cast<QgsGrassModuleOption *>( mItems[i] );
QgsDebugMsg( "opt->key() = " + opt->key() );
if ( opt->isOutput() )
{
if ( opt->outputType() == type )
{
QString out = opt->value();
list.append( out );
}
}
}
return list;
}
QStringList QgsGrassModuleStandardOptions::ready()
{
QgsDebugMsg( "entered." );
QStringList list;
for ( unsigned int i = 0; i < mItems.size(); i++ )
{
QString err = mItems[i]->ready();
if ( !err.isNull() )
{
list.append( err );
}
}
return list;
}
QStringList QgsGrassModuleStandardOptions::checkRegion()
{
QgsDebugMsg( "called." );
QStringList list;
struct Cell_head currentWindow;
if ( !QgsGrass::region( QgsGrass::getDefaultGisdbase(),
QgsGrass::getDefaultLocation(),
QgsGrass::getDefaultMapset(), ¤tWindow ) )
{
QMessageBox::warning( 0, tr( "Warning" ), tr( "Cannot get current region" ) );
return list;
}
for ( unsigned int i = 0; i < mItems.size(); i++ )
{
if ( typeid( *( mItems[i] ) ) != typeid( QgsGrassModuleInput ) )
{
continue;
}
struct Cell_head window;
QgsGrassModuleInput *item = dynamic_cast<QgsGrassModuleInput *>( mItems[i] );
QgsGrass::MapType mapType = QgsGrass::Vector;
switch ( item->type() )
{
case QgsGrassModuleInput::Raster :
mapType = QgsGrass::Raster;
break;
case QgsGrassModuleInput::Vector :
mapType = QgsGrass::Vector;
break;
}
QStringList mm = item->currentMap().split( "@" );
QString map = mm.at( 0 );
QString mapset = QgsGrass::getDefaultMapset();
if ( mm.size() > 1 ) mapset = mm.at( 1 );
if ( !QgsGrass::mapRegion( mapType,
QgsGrass::getDefaultGisdbase(),
QgsGrass::getDefaultLocation(), mapset, map,
&window ) )
{
QMessageBox::warning( 0, tr( "Warning" ), tr( "Cannot check region of map %1" ).arg( item->currentMap() ) );
continue;
}
if ( G_window_overlap( ¤tWindow,
window.north, window.south, window.east, window.west ) == 0 )
{
list.append( item->currentMap() );
}
}
return list;
}
bool QgsGrassModuleStandardOptions::inputRegion( struct Cell_head *window, bool all )
{
QgsDebugMsg( "called." );
// Get current resolution
if ( !QgsGrass::region( QgsGrass::getDefaultGisdbase(),
QgsGrass::getDefaultLocation(),
QgsGrass::getDefaultMapset(), window ) )
{
QMessageBox::warning( 0, tr( "Warning" ), tr( "Cannot get current region" ) );
return false;
}
int rasterCount = 0;
int vectorCount = 0;
for ( unsigned int i = 0; i < mItems.size(); i++ )
{
if ( typeid( *( mItems[i] ) ) != typeid( QgsGrassModuleInput ) )
{
continue;
}
struct Cell_head mapWindow;
QgsGrassModuleInput *item = dynamic_cast<QgsGrassModuleInput *>( mItems[i] );
if ( !all && !item->useRegion() ) continue;
QgsGrass::MapType mapType = QgsGrass::Vector;
switch ( item->type() )
{
case QgsGrassModuleInput::Raster :
mapType = QgsGrass::Raster;
break;
case QgsGrassModuleInput::Vector :
mapType = QgsGrass::Vector;
break;
}
QStringList mm = item->currentMap().split( "@" );
QString map = mm.at( 0 );
QString mapset = QgsGrass::getDefaultMapset();
if ( mm.size() > 1 ) mapset = mm.at( 1 );
if ( !QgsGrass::mapRegion( mapType,
QgsGrass::getDefaultGisdbase(),
QgsGrass::getDefaultLocation(), mapset, map,
&mapWindow ) )
{
QMessageBox::warning( 0, tr( "Warning" ), tr( "Cannot set region of map %1" ).arg( item->currentMap() ) );
return false;
}
// TODO: best way to set resolution ?
if ( item->type() == QgsGrassModuleInput::Raster
&& rasterCount == 0 )
{
QgsGrass::copyRegionResolution( &mapWindow, window );
}
if ( rasterCount + vectorCount == 0 )
{
QgsGrass::copyRegionExtent( &mapWindow, window );
}
else
{
QgsGrass::extendRegion( &mapWindow, window );
}
if ( item->type() == QgsGrassModuleInput::Raster )
rasterCount++;
else if ( item->type() == QgsGrassModuleInput::Vector )
vectorCount++;
}
G_adjust_Cell_head3( window, 0, 0, 0 );
return true;
}
bool QgsGrassModuleStandardOptions::requestsRegion()
{
QgsDebugMsg( "called." );
for ( unsigned int i = 0; i < mItems.size(); i++ )
{
if ( typeid( *( mItems[i] ) ) != typeid( QgsGrassModuleInput ) )
{
continue;
}
QgsGrassModuleInput *item = dynamic_cast<QgsGrassModuleInput *>
( mItems[i] );
if ( item->useRegion() ) return true;
}
return false;
}
bool QgsGrassModuleStandardOptions::usesRegion()
{
QgsDebugMsg( "called." );
for ( unsigned int i = 0; i < mItems.size(); i++ )
{
if ( typeid( *( mItems[i] ) ) == typeid( QgsGrassModuleInput ) )
{
QgsGrassModuleInput *item =
dynamic_cast<QgsGrassModuleInput *>( mItems[i] );
if ( item->useRegion() )
return true;
}
/* It only make sense to check input, right?
* Output has no region yet */
if ( typeid( *( mItems[i] ) ) == typeid( QgsGrassModuleOption ) )
{
QgsGrassModuleOption *item =
dynamic_cast<QgsGrassModuleOption *>( mItems[i] );
if ( item->usesRegion() )
return true;
}
}
QgsDebugMsg( "NO usesRegion()" );
return false;
}
QgsGrassModuleStandardOptions::~QgsGrassModuleStandardOptions()
{
}
QString QgsGrassModule::label( QString path )
{
QgsDebugMsg( "called." );
// Open QGIS module description
path.append( ".qgm" );
QFile qFile( path );
if ( !qFile.exists() )
{
return tr( "Not available, description not found (%1)" ).arg( path );
}
if ( ! qFile.open( QIODevice::ReadOnly ) )
{
return tr( "Not available, cannot open description (%1)" ).arg( path );
}
QDomDocument qDoc( "qgisgrassmodule" );
QString err;
int line, column;
if ( !qDoc.setContent( &qFile, &err, &line, &column ) )
{
QString errmsg = tr( "Cannot read module file (%1)" ).arg( path )
+ tr( "\n%1\nat line %2 column %3" ).arg( err ).arg( line ).arg( column );
QgsDebugMsg( errmsg );
QMessageBox::warning( 0, tr( "Warning" ), errmsg );
qFile.close();
return tr( "Not available, incorrect description (%1)" ).arg( path );
}
qFile.close();
QDomElement qDocElem = qDoc.documentElement();
return ( qDocElem.attribute( "label" ) );
}
QPixmap QgsGrassModule::pixmap( QString path, int height )
{
QgsDebugMsg( "called." );
std::vector<QPixmap> pixmaps;
// Create vector of available pictures
int cnt = 1;