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qgsdataitem.cpp
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qgsdataitem.cpp
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/***************************************************************************
qgsdataitem.cpp - Data items
-------------------
begin : 2011-04-01
copyright : (C) 2011 Radim Blazek
email : radim dot blazek at gmail dot com
***************************************************************************/
/***************************************************************************
* *
* 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 <QApplication>
#include <QtConcurrentMap>
#include <QtConcurrentRun>
#include <QDateTime>
#include <QDir>
#include <QFileInfo>
#include <QMenu>
#include <QMouseEvent>
#include <QTreeWidget>
#include <QTreeWidgetItem>
#include <QVector>
#include <QStyle>
#include <QDesktopServices>
#include <QFileDialog>
#include "qgis.h"
#include "qgsdataitem.h"
#include "qgsapplication.h"
#include "qgsdataitemprovider.h"
#include "qgsdataitemproviderregistry.h"
#include "qgsdataprovider.h"
#include "qgslogger.h"
#include "qgsproviderregistry.h"
#include "qgsconfig.h"
#include "qgssettings.h"
#include "qgsanimatedicon.h"
#include "qgsproject.h"
// use GDAL VSI mechanism
#define CPL_SUPRESS_CPLUSPLUS //#spellok
#include "cpl_vsi.h"
#include "cpl_string.h"
// shared icons
QIcon QgsLayerItem::iconPoint()
{
return QgsApplication::getThemeIcon( QStringLiteral( "/mIconPointLayer.svg" ) );
}
QIcon QgsLayerItem::iconLine()
{
return QgsApplication::getThemeIcon( QStringLiteral( "/mIconLineLayer.svg" ) );
}
QIcon QgsLayerItem::iconPolygon()
{
return QgsApplication::getThemeIcon( QStringLiteral( "/mIconPolygonLayer.svg" ) );
}
QIcon QgsLayerItem::iconTable()
{
return QgsApplication::getThemeIcon( QStringLiteral( "/mIconTableLayer.svg" ) );
}
QIcon QgsLayerItem::iconRaster()
{
return QgsApplication::getThemeIcon( QStringLiteral( "/mIconRaster.svg" ) );
}
QIcon QgsLayerItem::iconDefault()
{
return QgsApplication::getThemeIcon( QStringLiteral( "/mIconLayer.png" ) );
}
QIcon QgsDataCollectionItem::iconDataCollection()
{
return QgsApplication::getThemeIcon( QStringLiteral( "/mIconDbSchema.svg" ) );
}
QIcon QgsDataCollectionItem::iconDir()
{
static QIcon sIcon;
if ( sIcon.isNull() )
{
// initialize shared icons
QStyle *style = QApplication::style();
sIcon = QIcon( style->standardPixmap( QStyle::SP_DirClosedIcon ) );
sIcon.addPixmap( style->standardPixmap( QStyle::SP_DirOpenIcon ),
QIcon::Normal, QIcon::On );
}
return sIcon;
}
QIcon QgsFavoritesItem::iconFavorites()
{
return QgsApplication::getThemeIcon( QStringLiteral( "/mIconFavourites.svg" ) );
}
QVariant QgsFavoritesItem::sortKey() const
{
return QStringLiteral( " 0" );
}
QIcon QgsZipItem::iconZip()
{
return QgsApplication::getThemeIcon( QStringLiteral( "/mIconZip.png" ) );
// icon from http://www.softicons.com/free-icons/application-icons/mega-pack-icons-1-by-nikolay-verin/winzip-folder-icon
}
QgsAnimatedIcon *QgsDataItem::sPopulatingIcon = nullptr;
QgsDataItem::QgsDataItem( QgsDataItem::Type type, QgsDataItem *parent, const QString &name, const QString &path )
// Do not pass parent to QObject, Qt would delete this when parent is deleted
: mType( type )
, mCapabilities( NoCapabilities )
, mParent( parent )
, mState( NotPopulated )
, mName( name )
, mPath( path )
, mDeferredDelete( false )
, mFutureWatcher( nullptr )
{
}
QgsDataItem::~QgsDataItem()
{
QgsDebugMsgLevel( QString( "mName = %1 mPath = %2 mChildren.size() = %3" ).arg( mName, mPath ).arg( mChildren.size() ), 2 );
Q_FOREACH ( QgsDataItem *child, mChildren )
{
if ( !child ) // should not happen
continue;
child->deleteLater();
}
mChildren.clear();
if ( mFutureWatcher && !mFutureWatcher->isFinished() )
{
// this should not usually happen (until the item was deleted directly when createChildren was running)
QgsDebugMsg( "mFutureWatcher not finished (should not happen) -> waitForFinished()" );
mDeferredDelete = true;
mFutureWatcher->waitForFinished();
}
delete mFutureWatcher;
}
QString QgsDataItem::pathComponent( const QString &string )
{
return QString( string ).replace( QRegExp( "[\\\\/]" ), QStringLiteral( "|" ) );
}
QVariant QgsDataItem::sortKey() const
{
return mSortKey.isValid() ? mSortKey : name();
}
void QgsDataItem::setSortKey( const QVariant &key )
{
mSortKey = key;
}
void QgsDataItem::deleteLater()
{
QgsDebugMsgLevel( "path = " + path(), 3 );
setParent( nullptr ); // also disconnects parent
Q_FOREACH ( QgsDataItem *child, mChildren )
{
if ( !child ) // should not happen
continue;
child->deleteLater();
}
mChildren.clear();
if ( mFutureWatcher && !mFutureWatcher->isFinished() )
{
QgsDebugMsg( "mFutureWatcher not finished -> schedule to delete later" );
mDeferredDelete = true;
}
else
{
QObject::deleteLater();
}
}
void QgsDataItem::deleteLater( QVector<QgsDataItem *> &items )
{
Q_FOREACH ( QgsDataItem *item, items )
{
if ( !item ) // should not happen
continue;
item->deleteLater();
}
items.clear();
}
void QgsDataItem::moveToThread( QThread *targetThread )
{
// QObject::moveToThread() cannot move objects with parent, but QgsDataItem is not using paren/children from QObject
Q_FOREACH ( QgsDataItem *child, mChildren )
{
if ( !child ) // should not happen
continue;
QgsDebugMsgLevel( "moveToThread child " + child->path(), 3 );
child->QObject::setParent( nullptr ); // to be sure
child->moveToThread( targetThread );
}
QObject::moveToThread( targetThread );
}
QIcon QgsDataItem::icon()
{
if ( state() == Populating && sPopulatingIcon )
return sPopulatingIcon->icon();
if ( !mIcon.isNull() )
return mIcon;
if ( !mIconMap.contains( mIconName ) )
{
mIconMap.insert( mIconName, mIconName.startsWith( ':' ) ? QIcon( mIconName ) : QgsApplication::getThemeIcon( mIconName ) );
}
return mIconMap.value( mIconName );
}
void QgsDataItem::setName( const QString &name )
{
mName = name;
emit dataChanged( this );
}
QVector<QgsDataItem *> QgsDataItem::createChildren()
{
return QVector<QgsDataItem *>();
}
void QgsDataItem::populate( bool foreground )
{
if ( state() == Populated || state() == Populating )
return;
QgsDebugMsgLevel( "mPath = " + mPath, 2 );
if ( capabilities2() & QgsDataItem::Fast || foreground )
{
populate( createChildren() );
}
else
{
setState( Populating );
// The watcher must not be created with item (in constructor) because the item may be created in thread and the watcher created in thread does not work correctly.
if ( !mFutureWatcher )
{
mFutureWatcher = new QFutureWatcher< QVector <QgsDataItem *> >( this );
}
connect( mFutureWatcher, &QFutureWatcherBase::finished, this, &QgsDataItem::childrenCreated );
mFutureWatcher->setFuture( QtConcurrent::run( runCreateChildren, this ) );
}
}
// This is expected to be run in a separate thread
QVector<QgsDataItem *> QgsDataItem::runCreateChildren( QgsDataItem *item )
{
QgsDebugMsgLevel( "path = " + item->path(), 2 );
QTime time;
time.start();
QVector <QgsDataItem *> children = item->createChildren();
QgsDebugMsgLevel( QString( "%1 children created in %2 ms" ).arg( children.size() ).arg( time.elapsed() ), 3 );
// Children objects must be pushed to main thread.
Q_FOREACH ( QgsDataItem *child, children )
{
if ( !child ) // should not happen
continue;
QgsDebugMsgLevel( "moveToThread child " + child->path(), 2 );
if ( qApp )
child->moveToThread( qApp->thread() ); // moves also children
}
QgsDebugMsgLevel( QString( "finished path %1: %2 children" ).arg( item->path() ).arg( children.size() ), 3 );
return children;
}
void QgsDataItem::childrenCreated()
{
QgsDebugMsgLevel( QString( "path = %1 children.size() = %2" ).arg( path() ).arg( mFutureWatcher->result().size() ), 3 );
if ( deferredDelete() )
{
QgsDebugMsg( "Item was scheduled to be deleted later" );
QObject::deleteLater();
return;
}
if ( mChildren.isEmpty() ) // usually populating but may also be refresh if originally there were no children
{
populate( mFutureWatcher->result() );
}
else // refreshing
{
refresh( mFutureWatcher->result() );
}
disconnect( mFutureWatcher, &QFutureWatcherBase::finished, this, &QgsDataItem::childrenCreated );
emit dataChanged( this ); // to replace loading icon by normal icon
}
void QgsDataItem::updateIcon()
{
emit dataChanged( this );
}
void QgsDataItem::populate( const QVector<QgsDataItem *> &children )
{
QgsDebugMsgLevel( "mPath = " + mPath, 3 );
Q_FOREACH ( QgsDataItem *child, children )
{
if ( !child ) // should not happen
continue;
// update after thread finished -> refresh
addChildItem( child, true );
}
setState( Populated );
}
void QgsDataItem::depopulate()
{
QgsDebugMsgLevel( "mPath = " + mPath, 3 );
Q_FOREACH ( QgsDataItem *child, mChildren )
{
QgsDebugMsgLevel( "remove " + child->path(), 3 );
child->depopulate(); // recursive
deleteChildItem( child );
}
setState( NotPopulated );
}
void QgsDataItem::refresh()
{
if ( state() == Populating )
return;
QgsDebugMsgLevel( "mPath = " + mPath, 3 );
if ( capabilities2() & QgsDataItem::Fast )
{
refresh( createChildren() );
}
else
{
setState( Populating );
if ( !mFutureWatcher )
{
mFutureWatcher = new QFutureWatcher< QVector <QgsDataItem *> >( this );
}
connect( mFutureWatcher, &QFutureWatcherBase::finished, this, &QgsDataItem::childrenCreated );
mFutureWatcher->setFuture( QtConcurrent::run( runCreateChildren, this ) );
}
}
void QgsDataItem::refreshConnections()
{
// Walk up until the root node is reached
if ( mParent )
{
mParent->refreshConnections();
}
else
{
refresh();
emit connectionsChanged();
}
}
void QgsDataItem::refresh( const QVector<QgsDataItem *> &children )
{
QgsDebugMsgLevel( "mPath = " + mPath, 2 );
// Remove no more present children
QVector<QgsDataItem *> remove;
Q_FOREACH ( QgsDataItem *child, mChildren )
{
if ( !child ) // should not happen
continue;
if ( findItem( children, child ) >= 0 )
continue;
remove.append( child );
}
Q_FOREACH ( QgsDataItem *child, remove )
{
QgsDebugMsgLevel( "remove " + child->path(), 3 );
deleteChildItem( child );
}
// Add new children
Q_FOREACH ( QgsDataItem *child, children )
{
if ( !child ) // should not happen
continue;
int index = findItem( mChildren, child );
if ( index >= 0 )
{
// Refresh recursively (some providers may create more generations of descendants)
if ( !( child->capabilities2() & QgsDataItem::Fertile ) )
{
// The child cannot createChildren() itself
mChildren.value( index )->refresh( child->children() );
}
child->deleteLater();
continue;
}
addChildItem( child, true );
}
setState( Populated );
}
int QgsDataItem::rowCount()
{
return mChildren.size();
}
bool QgsDataItem::hasChildren()
{
return ( state() == Populated ? !mChildren.isEmpty() : true );
}
void QgsDataItem::setParent( QgsDataItem *parent )
{
if ( mParent )
{
disconnect( this, nullptr, mParent, nullptr );
}
if ( parent )
{
connect( this, &QgsDataItem::beginInsertItems, parent, &QgsDataItem::beginInsertItems );
connect( this, &QgsDataItem::endInsertItems, parent, &QgsDataItem::endInsertItems );
connect( this, &QgsDataItem::beginRemoveItems, parent, &QgsDataItem::beginRemoveItems );
connect( this, &QgsDataItem::endRemoveItems, parent, &QgsDataItem::endRemoveItems );
connect( this, &QgsDataItem::dataChanged, parent, &QgsDataItem::dataChanged );
connect( this, &QgsDataItem::stateChanged, parent, &QgsDataItem::stateChanged );
}
mParent = parent;
}
void QgsDataItem::addChildItem( QgsDataItem *child, bool refresh )
{
Q_ASSERT( child );
QgsDebugMsgLevel( QString( "path = %1 add child #%2 - %3 - %4" ).arg( mPath ).arg( mChildren.size() ).arg( child->mName ).arg( child->mType ), 3 );
//calculate position to insert child
int i;
if ( type() == Directory )
{
for ( i = 0; i < mChildren.size(); i++ )
{
// sort items by type, so directories are before data items
if ( mChildren.at( i )->mType == child->mType &&
mChildren.at( i )->mName.localeAwareCompare( child->mName ) > 0 )
break;
}
}
else
{
for ( i = 0; i < mChildren.size(); i++ )
{
if ( mChildren.at( i )->mName.localeAwareCompare( child->mName ) >= 0 )
break;
}
}
if ( refresh )
emit beginInsertItems( this, i, i );
mChildren.insert( i, child );
child->setParent( this );
if ( refresh )
emit endInsertItems();
}
void QgsDataItem::deleteChildItem( QgsDataItem *child )
{
QgsDebugMsgLevel( "mName = " + child->mName, 2 );
int i = mChildren.indexOf( child );
Q_ASSERT( i >= 0 );
emit beginRemoveItems( this, i, i );
mChildren.remove( i );
child->deleteLater();
emit endRemoveItems();
}
QgsDataItem *QgsDataItem::removeChildItem( QgsDataItem *child )
{
QgsDebugMsgLevel( "mName = " + child->mName, 2 );
int i = mChildren.indexOf( child );
Q_ASSERT( i >= 0 );
if ( i < 0 )
{
child->setParent( nullptr );
return nullptr;
}
emit beginRemoveItems( this, i, i );
mChildren.remove( i );
emit endRemoveItems();
return child;
}
int QgsDataItem::findItem( QVector<QgsDataItem *> items, QgsDataItem *item )
{
for ( int i = 0; i < items.size(); i++ )
{
Q_ASSERT_X( items[i], "findItem", QString( "item %1 is nullptr" ).arg( i ).toLatin1() );
QgsDebugMsgLevel( QString::number( i ) + " : " + items[i]->mPath + " x " + item->mPath, 2 );
if ( items[i]->equal( item ) )
return i;
}
return -1;
}
bool QgsDataItem::equal( const QgsDataItem *other )
{
return ( metaObject()->className() == other->metaObject()->className() &&
mPath == other->path() );
}
QList<QAction *> QgsDataItem::actions( QWidget *parent )
{
Q_UNUSED( parent );
return QList<QAction *>();
}
bool QgsDataItem::handleDoubleClick()
{
return false;
}
QgsDataItem::State QgsDataItem::state() const
{
return mState;
}
void QgsDataItem::setState( State state )
{
QgsDebugMsgLevel( QString( "item %1 set state %2 -> %3" ).arg( path() ).arg( this->state() ).arg( state ), 3 );
if ( state == mState )
return;
State oldState = mState;
if ( state == Populating ) // start loading
{
if ( !sPopulatingIcon )
{
// TODO: ensure that QgsAnimatedIcon is created on UI thread only
sPopulatingIcon = new QgsAnimatedIcon( QgsApplication::iconPath( QStringLiteral( "/mIconLoading.gif" ) ), QgsApplication::instance() );
}
sPopulatingIcon->connectFrameChanged( this, &QgsDataItem::updateIcon );
}
else if ( mState == Populating && sPopulatingIcon ) // stop loading
{
sPopulatingIcon->disconnectFrameChanged( this, &QgsDataItem::updateIcon );
}
mState = state;
emit stateChanged( this, oldState );
if ( state == Populated )
updateIcon();
}
QList<QMenu *> QgsDataItem::menus( QWidget *parent )
{
Q_UNUSED( parent );
return QList<QMenu *>();
}
// ---------------------------------------------------------------------
QgsLayerItem::QgsLayerItem( QgsDataItem *parent, const QString &name, const QString &path, const QString &uri, LayerType layerType, const QString &providerKey )
: QgsDataItem( Layer, parent, name, path )
, mProviderKey( providerKey )
, mUri( uri )
, mLayerType( layerType )
{
mIconName = iconName( layerType );
}
QgsMapLayer::LayerType QgsLayerItem::mapLayerType() const
{
if ( mLayerType == QgsLayerItem::Raster )
return QgsMapLayer::RasterLayer;
if ( mLayerType == QgsLayerItem::Plugin )
return QgsMapLayer::PluginLayer;
return QgsMapLayer::VectorLayer;
}
QString QgsLayerItem::layerTypeAsString( QgsLayerItem::LayerType layerType )
{
static int enumIdx = staticMetaObject.indexOfEnumerator( "LayerType" );
return staticMetaObject.enumerator( enumIdx ).valueToKey( layerType );
}
QString QgsLayerItem::iconName( QgsLayerItem::LayerType layerType )
{
switch ( layerType )
{
case Point:
return QStringLiteral( "/mIconPointLayer.svg" );
break;
case Line:
return QStringLiteral( "/mIconLineLayer.svg" );
break;
case Polygon:
return QStringLiteral( "/mIconPolygonLayer.svg" );
break;
// TODO add a new icon for generic Vector layers
case Vector :
return QStringLiteral( "/mIconPolygonLayer.svg" );
break;
case TableLayer:
case Table:
return QStringLiteral( "/mIconTableLayer.svg" );
break;
case Raster:
return QStringLiteral( "/mIconRaster.svg" );
break;
default:
return QStringLiteral( "/mIconLayer.png" );
break;
}
}
bool QgsLayerItem::equal( const QgsDataItem *other )
{
//QgsDebugMsg ( mPath + " x " + other->mPath );
if ( type() != other->type() )
{
return false;
}
//const QgsLayerItem *o = qobject_cast<const QgsLayerItem *> ( other );
const QgsLayerItem *o = dynamic_cast<const QgsLayerItem *>( other );
if ( !o )
return false;
return ( mPath == o->mPath && mName == o->mName && mUri == o->mUri && mProviderKey == o->mProviderKey );
}
QgsMimeDataUtils::Uri QgsLayerItem::mimeUri() const
{
QgsMimeDataUtils::Uri u;
switch ( mapLayerType() )
{
case QgsMapLayer::VectorLayer:
u.layerType = QStringLiteral( "vector" );
break;
case QgsMapLayer::RasterLayer:
u.layerType = QStringLiteral( "raster" );
break;
case QgsMapLayer::PluginLayer:
u.layerType = QStringLiteral( "plugin" );
break;
default:
return u; // invalid URI
}
u.providerKey = providerKey();
u.name = layerName();
u.uri = uri();
u.supportedCrs = supportedCrs();
u.supportedFormats = supportedFormats();
return u;
}
// ---------------------------------------------------------------------
QgsDataCollectionItem::QgsDataCollectionItem( QgsDataItem *parent, const QString &name, const QString &path )
: QgsDataItem( Collection, parent, name, path )
{
mCapabilities = Fertile;
mIconName = QStringLiteral( "/mIconDbSchema.svg" );
}
QgsDataCollectionItem::~QgsDataCollectionItem()
{
QgsDebugMsgLevel( "mName = " + mName + " mPath = " + mPath, 2 );
// Do not delete children, children are deleted by QObject parent
#if 0
Q_FOREACH ( QgsDataItem *i, mChildren )
{
QgsDebugMsgLevel( QString( "delete child = 0x%0" ).arg( ( qlonglong )i, 8, 16, QLatin1Char( '0' ) ), 2 );
delete i;
}
#endif
}
//-----------------------------------------------------------------------
QgsDirectoryItem::QgsDirectoryItem( QgsDataItem *parent, const QString &name, const QString &path )
: QgsDataCollectionItem( parent, QDir::toNativeSeparators( name ), path )
, mDirPath( path )
, mRefreshLater( false )
{
mType = Directory;
init();
}
QgsDirectoryItem::QgsDirectoryItem( QgsDataItem *parent, const QString &name, const QString &dirPath, const QString &path )
: QgsDataCollectionItem( parent, QDir::toNativeSeparators( name ), path )
, mDirPath( dirPath )
, mRefreshLater( false )
{
mType = Directory;
init();
}
void QgsDirectoryItem::init()
{
setToolTip( QDir::toNativeSeparators( mDirPath ) );
}
QIcon QgsDirectoryItem::icon()
{
if ( state() == Populating )
return QgsDataItem::icon();
return iconDir();
}
QVector<QgsDataItem *> QgsDirectoryItem::createChildren()
{
QVector<QgsDataItem *> children;
QDir dir( mDirPath );
const QList<QgsDataItemProvider *> providers = QgsApplication::dataItemProviderRegistry()->providers();
QStringList entries = dir.entryList( QDir::AllDirs | QDir::NoDotAndDotDot, QDir::Name | QDir::IgnoreCase );
Q_FOREACH ( const QString &subdir, entries )
{
if ( mRefreshLater )
{
deleteLater( children );
return children;
}
QString subdirPath = dir.absoluteFilePath( subdir );
QgsDebugMsgLevel( QString( "creating subdir: %1" ).arg( subdirPath ), 2 );
QString path = mPath + '/' + subdir; // may differ from subdirPath
if ( QgsDirectoryItem::hiddenPath( path ) )
continue;
bool handledByProvider = false;
for ( QgsDataItemProvider *provider : providers )
{
if ( provider->handlesDirectoryPath( path ) )
{
handledByProvider = true;
break;
}
}
if ( handledByProvider )
continue;
QgsDirectoryItem *item = new QgsDirectoryItem( this, subdir, subdirPath, path );
// we want directories shown before files
item->setSortKey( QStringLiteral( " %1" ).arg( subdir ) );
// propagate signals up to top
children.append( item );
}
QStringList fileEntries = dir.entryList( QDir::Dirs | QDir::NoDotAndDotDot | QDir::Files, QDir::Name );
Q_FOREACH ( const QString &name, fileEntries )
{
if ( mRefreshLater )
{
deleteLater( children );
return children;
}
QString path = dir.absoluteFilePath( name );
QFileInfo fileInfo( path );
if ( fileInfo.suffix() == QLatin1String( "qgs" ) || fileInfo.suffix() == QLatin1String( "qgz" ) )
{
QgsDataItem *item = new QgsProjectItem( this, fileInfo.completeBaseName(), path );
children.append( item );
continue;
}
// vsizip support was added to GDAL/OGR 1.6 but GDAL_VERSION_NUM not available here
// so we assume it's available anyway
{
QgsDataItem *item = QgsZipItem::itemFromPath( this, path, name, mPath + '/' + name );
if ( item )
{
children.append( item );
continue;
}
}
for ( QgsDataItemProvider *provider : providers )
{
int capabilities = provider->capabilities();
if ( !( ( fileInfo.isFile() && ( capabilities & QgsDataProvider::File ) ) ||
( fileInfo.isDir() && ( capabilities & QgsDataProvider::Dir ) ) ) )
{
continue;
}
QgsDataItem *item = provider->createDataItem( path, this );
if ( item )
{
children.append( item );
}
}
}
return children;
}
void QgsDirectoryItem::setState( State state )
{
QgsDataCollectionItem::setState( state );
if ( state == Populated )
{
if ( !mFileSystemWatcher )
{
mFileSystemWatcher = new QFileSystemWatcher( this );
mFileSystemWatcher->addPath( mDirPath );
connect( mFileSystemWatcher, &QFileSystemWatcher::directoryChanged, this, &QgsDirectoryItem::directoryChanged );
}
mLastScan = QDateTime::currentDateTime();
}
else if ( state == NotPopulated )
{
if ( mFileSystemWatcher )
{
delete mFileSystemWatcher;
mFileSystemWatcher = nullptr;
}
}
}
void QgsDirectoryItem::directoryChanged()
{
// If the last scan was less than 10 seconds ago, skip this
if ( mLastScan.msecsTo( QDateTime::currentDateTime() ) < QgsSettings().value( QStringLiteral( "browser/minscaninterval" ), 10000 ).toInt() )
{
return;
}
if ( state() == Populating )
{
// schedule to refresh later, because refresh() simply returns if Populating
mRefreshLater = true;
}
else
{
// We definintely don't want the temporary files created by sqlite
// to re-trigger a refresh in an infinite loop.
disconnect( mFileSystemWatcher, &QFileSystemWatcher::directoryChanged, this, &QgsDirectoryItem::directoryChanged );
// QFileSystemWhatcher::directoryChanged is emitted when a
// file is created and not when it is closed/flushed.
//
// Delay to give to OS the time to complete writing the file
// this happens when a new file appears in the directory and
// the item's children thread will try to open the file with
// GDAL or OGR even if it is still being written.
QTimer::singleShot( 100, this, SLOT( refresh() ) );
}
}
bool QgsDirectoryItem::hiddenPath( const QString &path )
{
QgsSettings settings;
QStringList hiddenItems = settings.value( QStringLiteral( "browser/hiddenPaths" ),
QStringList() ).toStringList();
int idx = hiddenItems.indexOf( path );
return ( idx > -1 );
}
QList<QAction *> QgsDirectoryItem::actions( QWidget *parent )
{
QList<QAction *> result;
QAction *openFolder = new QAction( tr( "Open Directory…" ), parent );
connect( openFolder, &QAction::triggered, this, [ = ]
{
QDesktopServices::openUrl( QUrl::fromLocalFile( mDirPath ) );
} );
result << openFolder;
return result;
}
void QgsDirectoryItem::childrenCreated()
{
QgsDebugMsgLevel( QString( "mRefreshLater = %1" ).arg( mRefreshLater ), 3 );
if ( mRefreshLater )
{
QgsDebugMsgLevel( "directory changed during createChidren() -> refresh() again", 3 );
mRefreshLater = false;
setState( Populated );
refresh();
}
else
{
QgsDataCollectionItem::childrenCreated();
}
// Re-connect the file watcher after all children have been created
connect( mFileSystemWatcher, &QFileSystemWatcher::directoryChanged, this, &QgsDirectoryItem::directoryChanged );
}
bool QgsDirectoryItem::equal( const QgsDataItem *other )
{
//QgsDebugMsg ( mPath + " x " + other->mPath );
if ( type() != other->type() )
{
return false;
}
return ( path() == other->path() );
}
QWidget *QgsDirectoryItem::paramWidget()
{
return new QgsDirectoryParamWidget( mPath );
}
QgsDirectoryParamWidget::QgsDirectoryParamWidget( const QString &path, QWidget *parent )
: QTreeWidget( parent )
{
setRootIsDecorated( false );
// name, size, date, permissions, owner, group, type
setColumnCount( 7 );
QStringList labels;
labels << tr( "Name" ) << tr( "Size" ) << tr( "Date" ) << tr( "Permissions" ) << tr( "Owner" ) << tr( "Group" ) << tr( "Type" );
setHeaderLabels( labels );
QStyle *style = QApplication::style();
QIcon iconDirectory = QIcon( style->standardPixmap( QStyle::SP_DirClosedIcon ) );
QIcon iconFile = QIcon( style->standardPixmap( QStyle::SP_FileIcon ) );
QIcon iconDirLink = QIcon( style->standardPixmap( QStyle::SP_DirLinkIcon ) );
QIcon iconFileLink = QIcon( style->standardPixmap( QStyle::SP_FileLinkIcon ) );
QList<QTreeWidgetItem *> items;
QDir dir( path );
QStringList entries = dir.entryList( QDir::AllEntries | QDir::NoDotAndDotDot, QDir::Name | QDir::IgnoreCase );
Q_FOREACH ( const QString &name, entries )
{
QFileInfo fi( dir.absoluteFilePath( name ) );
QStringList texts;
texts << name;
QString size;
if ( fi.size() > 1024 )
{
size = size.sprintf( "%.1f KiB", fi.size() / 1024.0 );
}
else if ( fi.size() > 1.048576e6 )
{
size = size.sprintf( "%.1f MiB", fi.size() / 1.048576e6 );
}
else
{
size = QStringLiteral( "%1 B" ).arg( fi.size() );
}
texts << size;
texts << fi.lastModified().toString( Qt::SystemLocaleShortDate );
QString perm;
perm += fi.permission( QFile::ReadOwner ) ? 'r' : '-';
perm += fi.permission( QFile::WriteOwner ) ? 'w' : '-';
perm += fi.permission( QFile::ExeOwner ) ? 'x' : '-';
// QFile::ReadUser, QFile::WriteUser, QFile::ExeUser
perm += fi.permission( QFile::ReadGroup ) ? 'r' : '-';
perm += fi.permission( QFile::WriteGroup ) ? 'w' : '-';
perm += fi.permission( QFile::ExeGroup ) ? 'x' : '-';
perm += fi.permission( QFile::ReadOther ) ? 'r' : '-';
perm += fi.permission( QFile::WriteOther ) ? 'w' : '-';
perm += fi.permission( QFile::ExeOther ) ? 'x' : '-';
texts << perm;