filetable.m

iPhone development example: Tables.

#import "FileTable.h"
#import "UIDeletableCell.h"

@implementation FileTable

- (id)initWithFrame:(struct CGRect)rect {
    self = [ super initWithFrame: rect ];
    if (nil != self) {


        colFilename = [ [ UITableColumn alloc ]
            initWithTitle: @"Filename"
            identifier:@"filename"
            width: rect.size.width - 75
        ];
        [ self addTableColumn: colFilename ];

        colType = [ [ UITableColumn alloc ]
            initWithTitle: @"Type"
            identifier:@"type"
            width: 75
        ];
        [ self addTableColumn: colType ];

        [ self setSeparatorStyle: 1 ];
        [ self setDelegate: self ];
        [ self setDataSource: self ];
        [ self setRowHeight: 64 ];

        fileList = [ [ NSMutableArray alloc] init ];
    }

    return self;
}

- (void) setPath:(NSString *)_path {
    path = [ _path copy ];
}

- (void) setExtension:(NSString *)_extension {
    extension = [ _extension copy ];
}

- (void) reloadData {
    NSFileManager *fileManager = [ NSFileManager defaultManager ];
    NSDirectoryEnumerator *dirEnum; 
    NSString *file;

    if ([ fileManager fileExistsAtPath: path ] == NO) {
        return;
    } 

    [ fileList removeAllObjects ];
 
    dirEnum = [ [ NSFileManager defaultManager ] enumeratorAtPath: path ];
    while ((file = [ dirEnum nextObject ])) {
        if ([ file hasSuffix: extension ] == YES) {
            [ fileList addObject: file ];
        }
    }    

    [ super reloadData ];
}

- (int)numberOfRowsInTable:(UITable *)_table {
    return [ fileList count ];
}

- (UITableCell *)table:(UITable *)table 
  cellForRow:(int)row 
  column:(UITableColumn *)col
{
    if (col == colFilename) {
        UIDeletableCell *cell = [ [ UIDeletableCell alloc ] init ];
        [ cell setTable: self ];

        UIImageView *image = [ [ UIImage alloc ] 
              initWithContentsOfFile: [ [ NSString alloc ] 
              initWithFormat: @"/Applications/%@/icon.png", [ fileList 
                  objectAtIndex: row ] ] ];
        [ cell setTitle: [ [ fileList objectAtIndex: row ]
        stringByDeletingPathExtension ]];
        [ cell setImage: image ];
[ cell setShowDisclosure: YES ];
[ cell setDisclosureStyle: 3 ];
        return [ cell autorelease ];
    } else if (col == colType) {
        UIDeletableCell *cell = [ [ UIDeletableCell alloc ] init ];
        [ cell setTable: self ];
        [ cell setTitle: extension ];
        return [ cell autorelease ];
    }
}

- (int)swipe:(int)type withEvent:(struct __GSEvent *)event;
{
    CGPoint point= GSEventGetLocationInWindow(event);
    CGPoint offset = _startOffset;

    if (point.x < 100 || point.x > 200) {
        point.x += offset.x;
        point.y += offset.y;
        int row = [ self rowAtPoint:point ];

        [ [ self visibleCellForRow: row column: 1 ]
           _showDeleteOrInsertion: YES
           withDisclosure: NO
           animated: YES
           isDelete: YES
           andRemoveConfirmation: YES
        ];

        return [ super swipe:type withEvent:event ];
    }
}

- (void)_willDeleteRow:(int)row 
    forTableCell:(id)cell
    viaEdge:(int)edge
    animateOthers:(BOOL)animate 
{
    [ fileList removeObjectAtIndex: row ];
    [ super _willDeleteRow: row forTableCell: cell viaEdge: edge animateOthers: animate ];
}

- (void)tableRowSelected:(NSNotification *)notification {
    NSString *fileName = [ fileList objectAtIndex: [ self selectedRow ] ];

    /* A file was selected. Do something here. */
}

- (void)dealloc {
    [ colFilename release ];
    [ colType release ];
    [ fileList release ];
    [ super dealloc ];
} 
@end