Exemplo n.º 1
0
void WHtreeProcesser::collapseNode( const size_t thisNodeID, const dist_t coefficient, HTPROC_COLLAPSE collapseMode )
{
    if( thisNodeID > m_tree.getRoot().getID() )
    {
        throw std::runtime_error( "ERROR @ collapseNode::flattenBranch(): nodeID is out of boundaries" );
    }

    const WHnode& thisNode( m_tree.getNode( thisNodeID ) );
    dist_t upperLevel( thisNode.getDistLevel() );
    std::list< nodeID_t > worklist;
    worklist.push_back( thisNode.getFullID() );
    while( !worklist.empty() )
    {
        WHnode* currentNode( m_tree.fetchNode( worklist.front() ) );
        worklist.pop_front();
        std::vector< nodeID_t > currentKids( currentNode->getChildren() );
        dist_t parentLevel( currentNode->getDistLevel() );
        for( std::vector< nodeID_t >::iterator kidIter( currentKids.begin() ); kidIter != currentKids.end(); ++kidIter )
        {
            if( m_tree.getNode( *kidIter ).isNode() )
            {
                dist_t kidLevel( m_tree.getNode( *kidIter ).getDistLevel() );

                bool doCollapse( false );

                switch( collapseMode )
                {
                case HTPR_C_CONSTANT:
                    doCollapse = ( ( parentLevel - kidLevel ) < coefficient );
                    break;
                case HTPR_C_LINEAR:
                    doCollapse = ( ( parentLevel - kidLevel ) < ( kidLevel * coefficient ) );
                    break;
                case HTPR_C_SQ:
                    doCollapse = ( ( parentLevel - kidLevel ) < ( kidLevel * kidLevel * coefficient ) );
                    break;
                default:
                    break;
                }

                if( doCollapse )
                {
                    worklist.push_back( *kidIter );
                }
            }
        }
        currentNode->setDistLevel( upperLevel );
    }
    return;
} // end collapseNodeLinear() -------------------------------------------------------------------------------------
void CFileBrowserEngine::GetCurrentItemsL(CDesCArray* aItems)
{
	__LOGSTR_TOFILE("CFileBrowserEngine::GetCurrentItemsL() begins");

	aItems->Reset();

	// If the current directory is not the first one,
	// add '...' entry as the first element of the listbox
	if (iCurrentDirectory.Length() > 0)
	{
		TFileName upperLevel(KNullDesC);
		upperLevel.Format(KStringUp, 2);
		aItems->AppendL(upperLevel);
	}

	// Retrieve folders names
	TFileName folderName(KNullDesC);

	if (iCurrentDirectory.Length() == 0)
	{
		// Get CCoeEnv instance
		CEikonEnv* eikonEnv = CEikonEnv::Static();

		HBufC* stringHolder1 = StringLoader::LoadL(R_FILEBROWSER_PHONEMEMORY, eikonEnv );
		HBufC* stringHolder2 = StringLoader::LoadL(R_FILEBROWSER_CARDMEMORY, eikonEnv );

		for (TInt i = 0; i < iCurrentFolders.Count(); i++)
		{
			// As icon we use folder icon (index 0)
			if ( i == 0)
			{
				TFileName fileName = iCurrentFolders[i].iName;

				fileName.Append(*stringHolder1);

				folderName.Format(KStringIcon, 3, &fileName);
			}
			else
			{
				TFileName fileName = iCurrentFolders[i].iName;

				fileName.Append(*stringHolder2);

				folderName.Format(KStringIcon, 4, &fileName);
			}

			aItems->AppendL(folderName);
		}

		delete stringHolder2;
		stringHolder2 = NULL;

		delete stringHolder1;
		stringHolder1 = NULL;
	}
	else
	{
		for (TInt i = 0; i < iCurrentFolders.Count(); i++)
		{
			// As icon we use folder icon (index 0)
			folderName.Format(KStringIcon, 0, &iCurrentFolders[i].iName);
			aItems->AppendL(folderName);
		}

	}

	// Retrieve files names
	TFileName fileName(KNullDesC);

	for (TInt i = 0; i < iCurrentFiles.Count(); i++)
	{
		// As folder we use file icon (index 1)
		fileName.Format(KStringIcon, 1, &iCurrentFiles[i].iName);
		aItems->AppendL(fileName);
	}

	__LOGSTR_TOFILE("CFileBrowserEngine::GetCurrentItemsL() ends");
}