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Annotation of Examples/EnterpriseObjects/QueryByExample/QBEPalette/TableMagic.m, revision 1.1

1.1     ! root        1: // TableMagic - some useful methods for dealing with tableViews tied to controllers.
        !             2: 
        !             3: #import "TableMagic.h"
        !             4: 
        !             5: @implementation NXTableView (tableMagic)
        !             6: + keyTableView
        !             7: {
        !             8:     id view = [[NXApp mainWindow] firstResponder];
        !             9:     return ([view isKindOf:[NXTableView class]]) ? view : nil;
        !            10: }
        !            11: 
        !            12: - (EOController *)eoController
        !            13: {
        !            14:     id assoc = [self delegate];
        !            15:     if ([assoc isKindOfClass:[EOAssociation class]])
        !            16:         return [assoc controller];
        !            17:     else
        !            18:         return nil;
        !            19: }
        !            20: 
        !            21: - (NSString *)associationKeyForColumn: (unsigned int)colNum
        !            22: {
        !            23:     id vector = [self columnAt:colNum];
        !            24:     id assoc  = [vector identifier];
        !            25:     return ([assoc isKindOfClass:[EOAssociation class]]) ? [assoc key] : nil;
        !            26: }
        !            27: 
        !            28: - (NSArray *)associationKeysForSelectedColumns
        !            29: {
        !            30:     int numselected = [self selectedColumnCount];
        !            31:     int colNum;
        !            32:     NSMutableArray *keys;
        !            33: 
        !            34:     keys = [NSMutableArray arrayWithCapacity:numselected];
        !            35: 
        !            36:     colNum = NX_NoIndex;
        !            37:     while ((colNum = [self selectedColumnAfter:colNum])!=NX_NoIndex) {
        !            38:         [keys addObject:[self associationKeyForColumn:colNum]];
        !            39:     }
        !            40: 
        !            41:     return keys;
        !            42: }
        !            43: @end

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