ListView

AboutToHide AboutToShow AdjustSize CellStyleChanges CellToIndex CellValue Confirm DeleteSelection

DrawCell DrawColumnTitles DrawRow EditName GoTo GoToRow IndexToCell MatchText

MaximumScrollOffset Notice RowHeight ScrollArrowPositions TapObject Touch TouchedObject TypeKeys

Attributes

CanDeleteSelection CanGoTo ConstantRowHeight Editable List List RowCount Selected UseBuiltInScrollArrows

Fields

instance ListView tag;
 relativeOrigin: <0.0,0.0>;
    contentSize: <0.0,0.0>;
      viewFlags: 0x00000000;
     labelStyle: nilObject;
          color: 0;
       altColor: 0;
         shadow: nilObject;
          sound: nilObject;
         border: nilObject;
   scrollOffset: <0.0,0.0>;
     selectMode: false;
      showCount: false;
useContainerList: false;
showColumnTitles: false;
 keyboardScroll: false;
scrollToSelected: false;
showColumnLines: false;
   showRowLines: false;
showExtraRowLines: false;
 showTitleLines: false;
    menuResizeH: false;
alwaysOneSelected: false;
setCurrentContact: false;
      dontTrack: false;
  showRemaining: false;
showColumnTitleAsLetter: false;
showColumnTitleAsNumber: false;
  showRowTitles: false;
showRowTitleAsLetter: false;
showRowTitleAsNumber: false;
useListElementPerCell: false;
  noPartialCell: false;
grayTitleBackground: false;
gridViewCenteredTitle: false;
    forPrinting: false;
 emboldenGroups: false;
confirmOnSelect: false;
   removePlural: false;
  listViewArrow: false;
  cellTextStyle: nilObject;
   columnTitles: nilObject;
   emptyMessage: nilObject;
 selectedColumn: 0;
    selectedRow: 0;
 titleTextStyle: nilObject;
 columnKeysList: nilObject;
columnOffsetsList: nilObject;
columnFlagsList: nilObject;
           list: nilObject;
  summaryString: nilObject;
end instance;

Define Class ListView;
    inherits from GridView, AcceptsTyping, HasBuiltInScrollArrows;
    inherits from HasGoTo;
    has no dispatcher hintdata;

    field list: HasIndexing, weak;
    field summaryString: Text;
    
    overrides ConstantRowHeight;                
        // returns true
    overrides RowHeight;

    // Data values

    operation CellToIndex(column: Unsigned; row: Unsigned): Unsigned;
    operation IndexToCell(index: Unsigned; var column: Unsigned; var row: Unsigned);
    
    operation CellValue(column: Unsigned; row: Unsigned): Object;
    operation CellStyleChanges(column: Unsigned; row: Unsigned): Unsigned;
    
    // Object data values

    attribute CanDeleteSelection: Boolean, readOnly;
        // returns true if there is a current selection and the selection returns true for CanDeleteDeep
    operation DeleteSelection();
    operation EditName();           
        // bring up name editor for selected object 
    attribute Selected: Object;
    operation TouchedObject(touchInput: TouchInput; object: Object; column: Unsigned; row: Unsigned);
    overrides Confirm;
        // does nothing at this level; call to accept current state of list view

    operation TapObject(object: Object);    
        // call to simulate a user tap on a line of the listview

    overrides AboutToHide, AboutToShow;
    overrides AdjustSize;
    overrides ScrollArrowPositions;
        // calls inherited method, then moves up-arrow down by height of column title
    overrides DrawCell, DrawRow;
    overrides DrawColumnTitles;                 
        // if list implements HasSortKeys, highlights the sorted column
    overrides Editable;                         
        // return true if can used typed chars to scroll
    overrides CanGoTo, GoTo;                    
        // calls GoTo(self, SelectedRow(self))
    operation GoToRow(rowNumber: Unsigned);
        // zooms from row bounds to entire screen, then calls GoTo on object in this row
    overrides MaximumScrollOffset;              
        // don't change horizontal scroll
    overrides MatchText;
    overrides Notice;
    overrides RowCount;
    overrides List, SetList;
    overrides Touch;
    overrides TypeKeys;         
        // scroll to typed chars if proper flag set
    overrides UseBuiltInScrollArrows;
        // returns value of listViewArrow bit in grid view flags
end class;