strcview.cpp

来自「开放源码的编译器open watcom 1.6.0版的源代码」· C++ 代码 · 共 642 行 · 第 1/2 页

{
    char * tmp;
    initState();

    if( _indentLevel > 0 ) {
        tmp = new char[ _indentLevel * 2 + 3 + _name.size() ];
        memset( tmp, ' ', _indentLevel * 2 );
        tmp[ _indentLevel * 2 ] = '\0';
    } else {
        tmp = new char[ _name.size() + 3 ];
        tmp[ 0 ] = '\0';
    }

    switch( _expandState ) {
        case LeafNode:
            strcat( tmp, "  " );
            break;
        case Collapsed:
            strcat( tmp, "+ " );
            break;
        case Expanded:
            strcat( tmp, "- " );
            break;
        default:
            REQUIRE( 0, "strcview name -- _expandState out of range" );
    }

    strcat( tmp, _name );
    return tmp;
}

void StrucViewItem::expandNode( int index )
//-----------------------------------------
{
    VerboseListBox * listbox = _parent->getListBox();
    WVList         * listobjs = _parent->getObjs();
    int childIndex = index + 1;
    int i;

    initState();

    if( _expandState == Collapsed ) {
        _expandState=Expanded;
    } else {
        return;
    }

    char * tmp = name();
    listbox->deleteString( index );
    listbox->insertString( tmp, index );
    delete tmp;
    listobjs->removeAt( index );
    listobjs->insertAt( index, this );

    for( i = 0; i < _kids.count(); i++ ) {
        char *tmp = ((StrucViewItem *)_kids[i])->name();
        listbox->insertString( tmp, childIndex );
        delete tmp;
        listobjs->insertAt( childIndex, _kids[i] );
        childIndex ++;
    }

    listbox->select( index );
    return;
}

void StrucViewItem::collapseNode( int &index )
//--------------------------------------------
{
    WVList *         listobjs = _parent->getObjs();
    VerboseListBox * listbox = _parent->getListBox();

    initState();

    if( _expandState == Expanded ) {
        index += 1;
        for( int i = 0; i < _kids.count();  i++ ) {
            ((StrucViewItem *)_kids[ i ])->collapseNode( index );
        }
        index -= 1;
    }

    listobjs->removeAt( index );
    listbox->deleteString( index );
    if( _expandState == Expanded ) {
        _expandState = Collapsed;
    }
}

void StrucViewItem::expandAllNode( int &index )
//---------------------------------------------
{
    WVList *         listobjs = _parent->getObjs();
    VerboseListBox * listbox = _parent->getListBox();

    initState();

    if( (*listobjs)[ index ] != this ) {
        if( _expandState == Collapsed ) {
            _expandState = Expanded;
        }
        listobjs->insertAt( index, this );
        char * tmp = name();
        listbox->insertString( tmp, index );
        delete tmp;
        if( _expandState == Collapsed ) {
            _expandState = Expanded;
        }
    } else {
        if( _expandState == Collapsed ) {
            _expandState = Expanded;
            listbox->deleteString( index );
            char * tmp = name();
            listbox->insertString( tmp, index );
            delete tmp;
        }
    }
    index += 1;

    if( _expandState != LeafNode ) {
        for( int i = 0; i < _kids.count();  i++ ) {
            ((StrucViewItem *)_kids[ i ])->expandAllNode( index );
        }
    }
}

const char * StrucViewItem::typeStr(void)
//---------------------------------------
{
    initState();
    return _type;
}

void StrucViewItem::initState()
//-----------------------------
// if i represent a variable, i must find my type
// if the base type is a ClassType, then i am Collapsed
// else i am LeafNode
{
    bool        do_inherited = FALSE;
    ClassType * classType;
    dr_sym_type stype = _info->symtype();

    REQUIRE( stype != DR_SYM_NOT_SYM,"strucview::initstate ack");

    if( !_initialized ) {
        if( _classNode != NULL ) {
            REQUIRE( stype == DR_SYM_CLASS,"strucview::initstate nak");
            classType = (ClassType *)_info;
            _type = _name;
        } else {
            classType = flattenTypeDesc( _info, _type );
            _name = _info->name();
        }

        if( classType ) {
            WVList kidInfos;
            FilterFlags flags = _parent->getFilter();
            if( ( flags & FILT_INHERITED ) || ( flags & FILT_ALL_INHERITED )) {
                do_inherited = TRUE;
                FILT_RESET_INHERITED( flags );
            }

            classType->dataMembers( kidInfos, flags );
            if( kidInfos.count() != 0 ) {
                _expandState = Collapsed;
                _parent->addSeen( this );
                for( int i = 0; i < kidInfos.count(); i++ ) {
                    _kids.add( new StrucViewItem( _parent, ((Symbol *)kidInfos[i]),
                                                  _indentLevel + 1 ) );
                }
            } else {
                _expandState = LeafNode;
            }
            if( classType != _info ) {
                delete classType;
            }

            if( do_inherited ) {
                startInherited();
            }
        } else {
            _expandState = LeafNode;
        }
        _initialized = TRUE;
    }
}

ClassType * StrucViewItem::flattenTypeDesc( Symbol * sym, WString & desc )
//------------------------------------------------------------------------
{
    ClassType *     classType = NULL;
    char *          str = NULL;
    WVList          typeParts;
    Description *   entry;
    int             i;

    REQUIRE( sym != NULL, "strucview::flatten passed null symbol!" );
    dr_sym_type stype = sym->symtype();
    REQUIRE( stype != DR_SYM_NOT_SYM,"strucview::flatten bad set");

    switch( stype ) {
    case DR_SYM_VARIABLE:
        // need to find out the type of the data member
        ((VariableSym *) sym)->loadTypeInfo( typeParts );
        for( i = 0; i < typeParts.count(); i++ ) {
            entry = (Description *) typeParts[i];
            if( entry->_nameGoesHere ) {
                desc.concat( entry->u.text );
            } else {
                if( !sym->isEqual( entry->u.sym ) ){
                    if( classType == NULL ) {
                        classType = flattenTypeDesc( entry->u.sym, desc );
                    } else {
                        desc.concat( entry->u.sym->name() );
                    }
                }
            }
        }
        break;

    case DR_SYM_TYPEDEF:
    case DR_SYM_ENUM:
        sym->description( typeParts );
        for( i = 0; i < typeParts.count(); i++ ) {
            entry = (Description *) typeParts[ i ];
            if( entry->_isUserDefined ) {
                if( entry->u.sym->symtype() == DR_SYM_CLASS && classType == NULL ) {
                    classType = (ClassType *) entry->u.sym;
                }
            }
        }
        desc.concat( sym->name() );
        break;

    case DR_SYM_CLASS:
        if( _parent->isSeen( sym ) ) {
            desc.concat( sym->name() );
            classType = NULL;
        } else {
            classType = (ClassType *) sym;
            desc.concat( classType->name() );
        }
        break;

    default: {}
    }

    for( i=0; i < typeParts.count(); i++ ) {
        entry = (Description *) typeParts[ i ];
        if( entry->_isUserDefined && entry->u.sym != classType &&
            entry->u.sym != sym ) {
            delete entry->u.sym;
        }
    }
    typeParts.deleteContents();

    return classType;
}

struct InheritedData
{
    StrucViewItem * me;
    WString *       name;
};

void StrucViewItem::startInherited( void )
//----------------------------------------
{
    WString       start( _name );
    InheritedData data;
    data.me = this;
    data.name = &start;
    if( _classNode != NULL ) {
        _classNode->enumerateBases( &inhHook, &data );
    } else {
        _parent->getLattice()->enumerateBases( &inhHook, &data );
    }
}

bool StrucViewItem::inhHook( DerivationPtr & ptr, void * info )
//-------------------------------------------------------------
{
    InheritedData * data = (InheritedData *) info;
    WString         name( *data->name );
    StrucViewItem * item = NULL;

    name.concat( "::" );
    name.concat( ptr._class->name() );

    if( ptr._virtuality == DR_VIRTUALITY_VIRTUAL ) {
        WVList * list = data->me->_parent->getSeen();
        for( int i = list->count(); i > 0; i -= 1 ) {
            StrucViewItem * test = (StrucViewItem *) (*list)[ i - 1 ];
            if( test->_info->getHandle() == ptr._class->getHandle() ) {
                item = test;
            }
        }
    }
    if( item != NULL ) {
        item->_name.concat( ", " );
        item->_name.concat( name );
    } else {
        item = new StrucViewItem( data->me->_parent, ptr._class,
                                  data->me->_indentLevel );
        item->_name = name;
        item->initState();
        data->me->_kids.add( item );
    }

    return TRUE;
}

void StrucViewItem::reset( void )
//-------------------------------
{
    _kids.deleteContents();
    _initialized = FALSE;
    initState();
}