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check for valid items in qgscptcitybrowsermodel

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This commit is contained in:
Etienne Tourigny 2012-08-16 12:14:28 -03:00
parent 05d0651694
commit d576a4340e
2 changed files with 58 additions and 14 deletions
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69
src/core/symbology-ng/qgscptcitybrowsermodel.cpp
View File

@ -40,7 +40,7 @@ QgsCptCityDataItem::QgsCptCityDataItem( QgsCptCityDataItem::Type type, QgsCptCit
QString name, QString path, QString info )
// Do not pass parent to QObject, Qt would delete this when parent is deleted
: QObject(), mType( type ), mParent( parent ), mPopulated( false ),
mName( name ), mPath( path ), mInfo( info )
mName( name ), mPath( path ), mInfo( info ), mValid( true )
{
}
@ -252,6 +252,13 @@ QgsCptCityColorRampItem::QgsCptCityColorRampItem( QgsCptCityDataItem* parent,
mRamp.setVariantName( variantList[ variantList.count() / 2 ] );
mRamp.loadFile();
}
// is this item valid? this might fail when there are variants, check
if ( ! QFile::exists( mRamp.fileName() ) )
mValid = false;
else
mValid = true;
// load file and set info
if ( mRamp.count() > 0 )
{
@ -325,6 +332,9 @@ QgsCptCityDirectoryItem::QgsCptCityDirectoryItem( QgsCptCityDataItem* parent,
: QgsCptCityCollectionItem( parent, name, path, info, collectionName )
{
mType = Directory;
mValid = QDir( QgsCptCityCollection::baseDir( mCollectionName ) + "/" + mPath ).exists();
if ( ! mValid )
QgsDebugMsg( "created invalid dir item, path = " + QgsCptCityCollection::baseDir( mCollectionName ) + "/" + mPath );
// populate();
}
@ -335,24 +345,36 @@ QgsCptCityDirectoryItem::~QgsCptCityDirectoryItem()
QVector<QgsCptCityDataItem*> QgsCptCityDirectoryItem::createChildren( )
{
QgsCptCityCollection* collection = QgsCptCityCollection::collectionRegistry().value( mCollectionName );
QgsCptCityDataItem* item = 0;
QVector<QgsCptCityDataItem*> children;
if ( ! mValid )
return children;
QgsDebugMsg( "name= " + mName + " path= " + mPath );
// add children collections
// add children dirs
foreach ( QString childPath, collection->listSchemeCollections( mPath ) )
{
QgsDebugMsg( "childPath = " + childPath + " name= " + QFileInfo( childPath ).baseName() );
children << new QgsCptCityDirectoryItem( this, QFileInfo( childPath ).baseName(), childPath,
collection->collectionNames().value( childPath ),
mCollectionName );
item = new QgsCptCityDirectoryItem( this, QFileInfo( childPath ).baseName(), childPath,
collection->collectionNames().value( childPath ),
mCollectionName );
if ( item->isValid() )
children << item;
else
delete item;
}
// add children schemes
foreach ( QString schemeName, collection->schemeMap().value( mPath ) )
{
// QgsDebugMsg( "schemeName = " + schemeName );
children << new QgsCptCityColorRampItem( this, schemeName, mPath + "/" + schemeName );
item = new QgsCptCityColorRampItem( this, schemeName, mPath + "/" + schemeName );
if ( item->isValid() )
children << item;
else
delete item;
}
return children;
@ -385,6 +407,7 @@ QgsCptCityCategoryItem::~QgsCptCityCategoryItem()
QVector<QgsCptCityDataItem*> QgsCptCityCategoryItem::createChildren( )
{
QgsCptCityCollection* collection = QgsCptCityCollection::collectionRegistry().value( mCollectionName );
QgsCptCityDataItem* item = 0;
QVector<QgsCptCityDataItem*> children;
QgsDebugMsg( "name= " + mName + " path= " + mPath );
@ -396,13 +419,21 @@ QVector<QgsCptCityDataItem*> QgsCptCityCategoryItem::createChildren( )
if ( childPath.endsWith( "/" ) )
{
childPath.chop( 1 );
children << new QgsCptCityDirectoryItem( this, childPath, childPath,
collection->collectionNames().value( childPath ),
mCollectionName );
item = new QgsCptCityDirectoryItem( this, childPath, childPath,
collection->collectionNames().value( childPath ),
mCollectionName );
if ( item->isValid() )
children << item;
else
delete item;
}
else
{
children << new QgsCptCityColorRampItem( this, childPath, childPath );
item = new QgsCptCityColorRampItem( this, childPath, childPath );
if ( item->isValid() )
children << item;
else
delete item;
}
}
@ -451,16 +482,22 @@ void QgsCptCityBrowserModel::addRootItems( )
if ( mViewName == "authors" )
{
QgsCptCityDirectoryItem* item = 0;
foreach ( QString path, collection->listSchemeCollections() )
{
QgsDebugMsg( "path= " + path );
mRootItems << new QgsCptCityDirectoryItem( NULL, QFileInfo( path ).baseName(), path,
collection->collectionNames().value( path ),
mCollectionName );
item = new QgsCptCityDirectoryItem( NULL, QFileInfo( path ).baseName(), path,
collection->collectionNames().value( path ),
mCollectionName );
if ( item->isValid() )
mRootItems << item;
else
delete item;
}
}
else if ( mViewName == "selections" )
{
QgsCptCityCategoryItem* item = 0;
QMapIterator< QString, QStringList> it( collection->collectionSelections() );
while ( it.hasNext() )
{
@ -468,7 +505,11 @@ void QgsCptCityBrowserModel::addRootItems( )
QString path = it.key();
QString info = collection->collectionNames().value( path );
QgsDebugMsg( "path= " + path + " info= " + info);
mRootItems << new QgsCptCityCategoryItem( NULL, path, path, info, mCollectionName );
item = new QgsCptCityCategoryItem( NULL, path, path, info, mCollectionName );
if ( item->isValid() )
mRootItems << item;
else
delete item;
}
}

3
src/core/symbology-ng/qgscptcitybrowsermodel.h
View File

@ -104,6 +104,8 @@ class CORE_EXPORT QgsCptCityDataItem : public QObject
void setToolTip( QString msg ) { mToolTip = msg; }
QString toolTip() const { return mToolTip; }
bool isValid() { return mValid; }
protected:
Type mType;
@ -115,6 +117,7 @@ class CORE_EXPORT QgsCptCityDataItem : public QObject
QString mInfo;
QString mToolTip;
QIcon mIcon;
bool mValid;
public slots:
void emitBeginInsertItems( QgsCptCityDataItem* parent, int first, int last );