transmission/macosx/TorrentTableView.m

/******************************************************************************
 * $Id$
 *
 * Copyright (c) 2005-2008 Transmission authors and contributors
 *
 * Permission is hereby granted, free of charge, to any person obtaining a
 * copy of this software and associated documentation files (the "Software"),
 * to deal in the Software without restriction, including without limitation
 * the rights to use, copy, modify, merge, publish, distribute, sublicense,
 * and/or sell copies of the Software, and to permit persons to whom the
 * Software is furnished to do so, subject to the following conditions:
 *
 * The above copyright notice and this permission notice shall be included in
 * all copies or substantial portions of the Software.
 *
 * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR
 * IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY,
 * FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE
 * AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER
 * LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING
 * FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER
 * DEALINGS IN THE SOFTWARE.
 *****************************************************************************/

#import "TorrentTableView.h"
#import "TorrentCell.h"
#import "Torrent.h"
#import "NSApplicationAdditions.h"
#import "NSMenuAdditions.h"

#define ACTION_MENU_GLOBAL_TAG 101
#define ACTION_MENU_UNLIMITED_TAG 102
#define ACTION_MENU_LIMIT_TAG 103

#define PIECE_CHANGE 0.1
#define PIECE_TIME 0.01

@interface TorrentTableView (Private)

- (BOOL) pointInControlRect: (NSPoint) point;
- (BOOL) pointInRevealRect: (NSPoint) point;
- (BOOL) pointInActionRect: (NSPoint) point;

- (BOOL) pointInProgressRect: (NSPoint) point;
- (BOOL) pointInMinimalStatusRect: (NSPoint) point;
- (void) updateFileMenu: (NSMenu *) menu forFiles: (NSArray *) files;

- (void) resizePiecesBarIncrement;

@end

@implementation TorrentTableView

- (id) initWithCoder: (NSCoder *) decoder
{
    if ((self = [super initWithCoder: decoder]))
    {
        fDefaults = [NSUserDefaults standardUserDefaults];
        
        fTorrentCell = [[TorrentCell alloc] init];
        if (![NSApp isOnLeopardOrBetter])
            [[self tableColumnWithIdentifier: @"Torrent"] setDataCell: fTorrentCell];
        
        fCollapsedGroups = [[NSMutableIndexSet alloc] init];
        
        fMouseControlRow = -1;
        fMouseRevealRow = -1;
        fMouseActionRow = -1;
        fActionPushedRow = -1;
        
        [self setDelegate: self];
        
        fPiecesBarPercent = [fDefaults boolForKey: @"PiecesBar"] ? 1.0 : 0.0;
    }
    
    return self;
}

- (void) dealloc
{
    [fCollapsedGroups release];
    
    [fPiecesBarTimer invalidate];
    [fMenuTorrent release];
    
    [fSelectedValues release];
    
    [fTorrentCell release];
    
    [super dealloc];
}

- (NSIndexSet *) collapsedGroupsIndexes
{
    return fCollapsedGroups;
}

- (BOOL) outlineView: (NSOutlineView *) outlineView isGroupItem: (id) item
{
    return ![item isKindOfClass: [Torrent class]];
}

- (CGFloat) outlineView: (NSOutlineView *) outlineView heightOfRowByItem: (id) item
{
    return [item isKindOfClass: [Torrent class]] ? [self rowHeight] : GROUP_SEPARATOR_HEIGHT;
}

- (NSCell *) outlineView: (NSOutlineView *) outlineView dataCellForTableColumn: (NSTableColumn *) tableColumn item: (id) item
{
    if (!tableColumn)
        return nil;
    return [item isKindOfClass: [Torrent class]] ? fTorrentCell : nil;
}

- (void) outlineView: (NSOutlineView *) outlineView willDisplayCell: (id) cell forTableColumn: (NSTableColumn *) tableColumn
    item: (id) item
{
    if (![item isKindOfClass: [Torrent class]])
        return;
    
    [cell setRepresentedObject: item];
    
    int row = [self rowForItem: item];
    [cell setControlHover: row == fMouseControlRow];
    [cell setRevealHover: row == fMouseRevealRow];
    [cell setActionHover: row == fMouseActionRow];
    [cell setActionPushed: row == fActionPushedRow];
}

- (NSRect) frameOfCellAtColumn: (NSInteger) column row: (NSInteger) row
{
    NSRect rect = [super frameOfCellAtColumn: column row: row];
    
    if ([[self itemAtRow: row] isKindOfClass: [Torrent class]])
    {
        rect.size.width += rect.origin.x;
        rect.origin.x = 0.0;
    }
    
    return rect;
}

- (NSString *) outlineView: (NSOutlineView *) outlineView typeSelectStringForTableColumn: (NSTableColumn *) tableColumn item: (id) item
{
    return [item isKindOfClass: [Torrent class]] ? [item name]
            : [[self preparedCellAtColumn: 0 row: [self rowForItem: item]] stringValue];
}

- (void) updateTrackingAreas
{
    [super updateTrackingAreas];
    [self removeButtonTrackingAreas];
    
    NSRange rows = [self rowsInRect: [self visibleRect]];
    if (rows.length == 0)
        return;
    
    NSPoint mouseLocation = [self convertPoint: [[self window] convertScreenToBase: [NSEvent mouseLocation]] fromView: nil];
    
    NSUInteger row;
    for (row = rows.location; row < NSMaxRange(rows); row++)
    {
        if (![[self itemAtRow: row] isKindOfClass: [Torrent class]])
            continue;
        
        NSDictionary * userInfo = [NSDictionary dictionaryWithObject: [NSNumber numberWithInt: row] forKey: @"Row"];
        TorrentCell * cell = (TorrentCell *)[self preparedCellAtColumn: 0 row: row];
        [cell addTrackingAreasForView: self inRect: [self frameOfCellAtColumn: 0 row: row] withUserInfo: userInfo
                mouseLocation: mouseLocation];
    }
}

- (void) removeButtonTrackingAreas
{
    fMouseControlRow = -1;
    fMouseRevealRow = -1;
    fMouseActionRow = -1;
    
    if (![NSApp isOnLeopardOrBetter])
        return;
    
    NSEnumerator * enumerator = [[self trackingAreas] objectEnumerator];
    NSTrackingArea * area;
    while ((area = [enumerator nextObject]))
    {
        if ([area owner] == self && [[area userInfo] objectForKey: @"Row"])
            [self removeTrackingArea: area];
    }
}

- (void) setControlButtonHover: (int) row
{
    fMouseControlRow = row;
    if (row >= 0)
        [self setNeedsDisplayInRect: [self rectOfRow: row]];
}

- (void) setRevealButtonHover: (int) row
{
    fMouseRevealRow = row;
    if (row >= 0)
        [self setNeedsDisplayInRect: [self rectOfRow: row]];
}

- (void) setActionButtonHover: (int) row
{
    fMouseActionRow = row;
    if (row >= 0)
        [self setNeedsDisplayInRect: [self rectOfRow: row]];
}

- (void) mouseEntered: (NSEvent *) event
{
    NSDictionary * dict = (NSDictionary *)[event userData];
    
    NSNumber * row;
    if ((row = [dict objectForKey: @"Row"]))
    {
        int rowVal = [row intValue];
        NSString * type = [dict objectForKey: @"Type"];
        if ([type isEqualToString: @"Action"])
            fMouseActionRow = rowVal;
        else if ([type isEqualToString: @"Control"])
            fMouseControlRow = rowVal;
        else
            fMouseRevealRow = rowVal;
        
        [self setNeedsDisplayInRect: [self rectOfRow: rowVal]];
    }
}

- (void) mouseExited: (NSEvent *) event
{
    NSDictionary * dict = (NSDictionary *)[event userData];
    
    NSNumber * row;
    if ((row = [dict objectForKey: @"Row"]))
    {
        NSString * type = [dict objectForKey: @"Type"];
        if ([type isEqualToString: @"Action"])
            fMouseActionRow = -1;
        else if ([type isEqualToString: @"Control"])
            fMouseControlRow = -1;
        else
            fMouseRevealRow = -1;
        
        [self setNeedsDisplayInRect: [self rectOfRow: [row intValue]]];
    }
}

- (void) outlineViewSelectionIsChanging: (NSNotification *) notification
{
    if (fSelectedValues)
        [self selectValues: fSelectedValues];
}

- (void) outlineViewItemDidExpand: (NSNotification *) notification
{
    int value = [[[[notification userInfo] objectForKey: @"NSObject"] objectForKey: @"Group"] intValue];
    [fCollapsedGroups removeIndex: value >= 0 ? value : INT_MAX];
    
    [[NSNotificationCenter defaultCenter] postNotificationName: @"OutlineExpandCollapse" object: self];
}

- (void) outlineViewItemDidCollapse: (NSNotification *) notification
{
    int value = [[[[notification userInfo] objectForKey: @"NSObject"] objectForKey: @"Group"] intValue];
    [fCollapsedGroups addIndex: value >= 0 ? value : INT_MAX];
    
    [[NSNotificationCenter defaultCenter] postNotificationName: @"OutlineExpandCollapse" object: self];
}

- (void) mouseDown: (NSEvent *) event
{
    NSPoint point = [self convertPoint: [event locationInWindow] fromView: nil];
    
    BOOL pushed = [self pointInControlRect: point] || [self pointInRevealRect: point] || [self pointInActionRect: point]
                    || [self pointInProgressRect: point] || [self pointInMinimalStatusRect: point];
    
    //if pushing a button, don't change the selected rows
    if (pushed)
        fSelectedValues = [[self selectedValues] retain];
    
    [super mouseDown: event];
    
    [fSelectedValues release];
    fSelectedValues = nil;
    
    //avoid weird behavior when showing menu by doing this after mouse down
    if ([self pointInActionRect: point])
    {
        int row = [self rowAtPoint: point];
        
        fActionPushedRow = row;
        [self setNeedsDisplayInRect: [self rectOfRow: row]]; //ensure button is pushed down
        
        [self displayTorrentMenuForEvent: event];
        
        fActionPushedRow = -1;
        [self setNeedsDisplayInRect: [self rectOfRow: row]];
    }
    else if (!pushed && [event clickCount] == 2) //double click
    {
        id item = [self itemAtRow: [self rowAtPoint: point]];
        
        if ([item isKindOfClass: [Torrent class]])
            [fController showInfo: nil];
        else
        {
            if ([self isItemExpanded: item])
                [self collapseItem: item];
            else
                [self expandItem: item];
        }
    }
    else;
}

- (void) selectValues: (NSArray *) values
{
    NSMutableIndexSet * indexSet = [NSMutableIndexSet indexSet];
    
    NSEnumerator * enumerator = [values objectEnumerator];
    id item;
    while ((item = [enumerator nextObject]))
    {
        if ([item isKindOfClass: [Torrent class]])
        {
            NSUInteger index = [self rowForItem: item];
            if (index != -1)
                [indexSet addIndex: index];
        }
        else
        {
            int group = [[item objectForKey: @"Group"] intValue], i;
            for (i = 0; i < [self numberOfRows]; i++)
            {
                id tableItem = [self itemAtRow: i];
                if (![tableItem isKindOfClass: [Torrent class]] && [[tableItem objectForKey: @"Group"] intValue] == group)
                {
                    [indexSet addIndex: i];
                    break;
                }
            }
        }
    }
    
    [self selectRowIndexes: indexSet byExtendingSelection: NO];
}

- (NSArray *) selectedValues
{
    NSIndexSet * selectedIndexes = [self selectedRowIndexes];
    NSMutableArray * values = [NSMutableArray arrayWithCapacity: [selectedIndexes count]];
    
    NSUInteger i;
    for (i = [selectedIndexes firstIndex]; i != NSNotFound; i = [selectedIndexes indexGreaterThanIndex: i])
        [values addObject: [self itemAtRow: i]];
    
    return values;
}

- (NSArray *) selectedTorrents
{
    NSIndexSet * selectedIndexes = [self selectedRowIndexes];
    NSMutableArray * torrents = [NSMutableArray array];
    
    NSUInteger i;
    for (i = [selectedIndexes firstIndex]; i != NSNotFound; i = [selectedIndexes indexGreaterThanIndex: i])
    {
        id item = [self itemAtRow: i];
        if ([item isKindOfClass: [Torrent class]])
        {
            if (![torrents containsObject: item])
                [torrents addObject: item];
        }
        else
            [torrents addObjectsFromArray: [item objectForKey: @"Torrents"]];
    }
    
    return torrents;
}

- (NSMenu *) menuForEvent: (NSEvent *) event
{
    int row = [self rowAtPoint: [self convertPoint: [event locationInWindow] fromView: nil]];
    if (row >= 0)
    {
        if (![self isRowSelected: row])
            [self selectRowIndexes: [NSIndexSet indexSetWithIndex: row] byExtendingSelection: NO];
        return fContextRow;
    }
    else
    {
        [self deselectAll: self];
        return fContextNoRow;
    }
}

//make sure that the pause buttons become orange when holding down the option key
- (void) flagsChanged: (NSEvent *) event
{
    [self display];
    [super flagsChanged: event];
}

- (void) toggleControlForTorrent: (Torrent *) torrent
{
    if ([torrent isActive])
        [fController stopTorrents: [NSArray arrayWithObject: torrent]];
    else
    {
        if ([[NSApp currentEvent] modifierFlags] & NSAlternateKeyMask)
            [fController resumeTorrentsNoWait: [NSArray arrayWithObject: torrent]];
        else if ([torrent waitingToStart])
            [fController stopTorrents: [NSArray arrayWithObject: torrent]];
        else
            [fController resumeTorrents: [NSArray arrayWithObject: torrent]];
    }
}

- (void) displayTorrentMenuForEvent: (NSEvent *) event
{
    int row = [self rowAtPoint: [self convertPoint: [event locationInWindow] fromView: nil]];
    if (row < 0)
        return;
    
    //get and update file menu
    fMenuTorrent = [[self itemAtRow: row] retain];
    NSMenu * fileMenu = [fMenuTorrent fileMenu];
    [self updateFileMenu: fileMenu forFiles: [fMenuTorrent fileList]];
    
    //add file menu items to action menu
    NSRange range = NSMakeRange(0, [fileMenu numberOfItems]);
    [fActionMenu appendItemsFromMenu: fileMenu atIndexes: [NSIndexSet indexSetWithIndexesInRange: range] atBottom: YES];
    
    //place menu below button
    NSRect rect = [fTorrentCell iconRectForBounds: [self frameOfCellAtColumn: 0 row: row]];
    NSPoint location = rect.origin;
    location.y += rect.size.height + 5.0;
    location = [self convertPoint: location toView: nil];
    
    NSEvent * newEvent = [NSEvent mouseEventWithType: [event type] location: location
        modifierFlags: [event modifierFlags] timestamp: [event timestamp] windowNumber: [event windowNumber]
        context: [event context] eventNumber: [event eventNumber] clickCount: [event clickCount] pressure: [event pressure]];
    
    [NSMenu popUpContextMenu: fActionMenu withEvent: newEvent forView: self];
    
    //move file menu items back to the torrent's file menu
    range.location = [fActionMenu numberOfItems] - range.length;
    [fileMenu appendItemsFromMenu: fActionMenu atIndexes: [NSIndexSet indexSetWithIndexesInRange: range] atBottom: YES];
    
    [fMenuTorrent release];
    fMenuTorrent = nil;
}

- (void) menuNeedsUpdate: (NSMenu *) menu
{
    //this method seems to be called when it shouldn't be
    if (!fMenuTorrent || ![menu supermenu])
        return;
    
    if (menu == fUploadMenu || menu == fDownloadMenu)
    {
        NSMenuItem * item;
        if ([menu numberOfItems] == 4)
        {
            const int speedLimitActionValue[] = { 0, 5, 10, 20, 30, 40, 50, 75, 100, 150, 200, 250, 500, 750, -1 };
            
            int i;
            for (i = 0; speedLimitActionValue[i] != -1; i++)
            {
                item = [[NSMenuItem alloc] initWithTitle: [NSString stringWithFormat: NSLocalizedString(@"%d KB/s",
                        "Action menu -> upload/download limit"), speedLimitActionValue[i]] action: @selector(setQuickLimit:)
                        keyEquivalent: @""];
                [item setTarget: self];
                [item setRepresentedObject: [NSNumber numberWithInt: speedLimitActionValue[i]]];
                [menu addItem: item];
                [item release];
            }
        }
        
        BOOL upload = menu == fUploadMenu;
        int mode = [fMenuTorrent speedMode: upload];
        
        item = [menu itemWithTag: ACTION_MENU_LIMIT_TAG];
        [item setState: mode == TR_SPEEDLIMIT_SINGLE ? NSOnState : NSOffState];
        [item setTitle: [NSString stringWithFormat: NSLocalizedString(@"Limit (%d KB/s)",
                            "torrent action menu -> upload/download limit"), [fMenuTorrent speedLimit: upload]]];
        
        item = [menu itemWithTag: ACTION_MENU_UNLIMITED_TAG];
        [item setState: mode == TR_SPEEDLIMIT_UNLIMITED ? NSOnState : NSOffState];
        
        item = [menu itemWithTag: ACTION_MENU_GLOBAL_TAG];
        [item setState: mode == TR_SPEEDLIMIT_GLOBAL ? NSOnState : NSOffState];
    }
    else if (menu == fRatioMenu)
    {
        NSMenuItem * item;
        if ([menu numberOfItems] == 4)
        {
            const float ratioLimitActionValue[] = { 0.25, 0.5, 0.75, 1.0, 1.5, 2.0, 3.0, -1.0 };
            
            int i;
            for (i = 0; ratioLimitActionValue[i] != -1.0; i++)
            {
                item = [[NSMenuItem alloc] initWithTitle: [NSString stringWithFormat: @"%.2f", ratioLimitActionValue[i]]
                        action: @selector(setQuickRatio:) keyEquivalent: @""];
                [item setTarget: self];
                [item setRepresentedObject: [NSNumber numberWithFloat: ratioLimitActionValue[i]]];
                [menu addItem: item];
                [item release];
            }
        }
        
        int mode = [fMenuTorrent ratioSetting];
        
        item = [menu itemWithTag: ACTION_MENU_LIMIT_TAG];
        [item setState: mode == NSOnState ? NSOnState : NSOffState];
        [item setTitle: [NSString stringWithFormat: NSLocalizedString(@"Stop at Ratio (%.2f)", "torrent action menu -> ratio stop"),
                            [fMenuTorrent ratioLimit]]];
        
        item = [menu itemWithTag: ACTION_MENU_UNLIMITED_TAG];
        [item setState: mode == NSOffState ? NSOnState : NSOffState];
        
        item = [menu itemWithTag: ACTION_MENU_GLOBAL_TAG];
        [item setState: mode == NSMixedState ? NSOnState : NSOffState];
    }
    else  //assume the menu is part of the file list
    {
        NSMenu * supermenu = [menu supermenu];
        [self updateFileMenu: menu forFiles: [[[supermenu itemAtIndex: [supermenu indexOfItemWithSubmenu: menu]]
                                                    representedObject] objectForKey: @"Children"]];
    }
}

- (void) setQuickLimitMode: (id) sender
{
    int mode;
    switch ([sender tag])
    {
        case ACTION_MENU_UNLIMITED_TAG:
            mode = TR_SPEEDLIMIT_UNLIMITED;
            break;
        case ACTION_MENU_LIMIT_TAG:
            mode = TR_SPEEDLIMIT_SINGLE;
            break;
        case ACTION_MENU_GLOBAL_TAG:
            mode = TR_SPEEDLIMIT_GLOBAL;
            break;
        default:
            return;
    }
    
    [fMenuTorrent setSpeedMode: mode upload: [sender menu] == fUploadMenu];
    
    [[NSNotificationCenter defaultCenter] postNotificationName: @"UpdateOptions" object: nil];
}

- (void) setQuickLimit: (id) sender
{
    BOOL upload = [sender menu] == fUploadMenu;
    [fMenuTorrent setSpeedMode: TR_SPEEDLIMIT_SINGLE upload: upload];
    [fMenuTorrent setSpeedLimit: [[sender representedObject] intValue] upload: upload];
    
    [[NSNotificationCenter defaultCenter] postNotificationName: @"UpdateOptions" object: nil];
}

- (void) setQuickRatioMode: (id) sender
{
    int mode;
    switch ([sender tag])
    {
        case ACTION_MENU_UNLIMITED_TAG:
            mode = NSOffState;
            break;
        case ACTION_MENU_LIMIT_TAG:
            mode = NSOnState;
            break;
        case ACTION_MENU_GLOBAL_TAG:
            mode = NSMixedState;
            break;
        default:
            return;
    }
    
    [fMenuTorrent setRatioSetting: mode];
    
    [[NSNotificationCenter defaultCenter] postNotificationName: @"UpdateOptions" object: nil];
}

- (void) setQuickRatio: (id) sender
{
    [fMenuTorrent setRatioSetting: NSOnState];
    [fMenuTorrent setRatioLimit: [[sender representedObject] floatValue]];
    
    [[NSNotificationCenter defaultCenter] postNotificationName: @"UpdateOptions" object: nil];
}

- (void) checkFile: (id) sender
{
    NSIndexSet * indexSet = [[sender representedObject] objectForKey: @"Indexes"];
    [fMenuTorrent setFileCheckState: [sender state] != NSOnState ? NSOnState : NSOffState forIndexes: indexSet];
    
    [[NSNotificationCenter defaultCenter] postNotificationName: @"UpdateStats" object: nil];
}

- (void) togglePiecesBar
{
    [self resizePiecesBarIncrement];
    
    if (!fPiecesBarTimer)
    {
        fPiecesBarTimer = [NSTimer scheduledTimerWithTimeInterval: PIECE_TIME target: self
                            selector: @selector(resizePiecesBarIncrement) userInfo: nil repeats: YES];
        [[NSRunLoop currentRunLoop] addTimer: fPiecesBarTimer forMode: NSModalPanelRunLoopMode];
        [[NSRunLoop currentRunLoop] addTimer: fPiecesBarTimer forMode: NSEventTrackingRunLoopMode];
    }
}

- (float) piecesBarPercent
{
    return fPiecesBarPercent;
}

@end

@implementation TorrentTableView (Private)

- (BOOL) pointInControlRect: (NSPoint) point
{
    int row = [self rowAtPoint: point];
    if (row < 0 || ![[self itemAtRow: row] isKindOfClass: [Torrent class]])
        return NO;
    
    return NSPointInRect(point, [fTorrentCell controlButtonRectForBounds: [self frameOfCellAtColumn: 0 row: row]]);
}

- (BOOL) pointInRevealRect: (NSPoint) point
{
    int row = [self rowAtPoint: point];
    if (row < 0 || ![[self itemAtRow: row] isKindOfClass: [Torrent class]])
        return NO;
    
    return NSPointInRect(point, [fTorrentCell revealButtonRectForBounds: [self frameOfCellAtColumn: 0 row: row]]);
}

- (BOOL) pointInActionRect: (NSPoint) point
{
    int row = [self rowAtPoint: point];
    if (row < 0 || ![[self itemAtRow: row] isKindOfClass: [Torrent class]])
        return NO;
    
    return NSPointInRect(point, [fTorrentCell iconRectForBounds: [self frameOfCellAtColumn: 0 row: row]]);
}

- (BOOL) pointInProgressRect: (NSPoint) point
{
    int row = [self rowAtPoint: point];
    if (row < 0 || ![[self itemAtRow: row] isKindOfClass: [Torrent class]] || [fDefaults boolForKey: @"SmallView"])
        return NO;
    
    TorrentCell * cell;
    if ([NSApp isOnLeopardOrBetter])
        cell = (TorrentCell *)[self preparedCellAtColumn: 0 row: row];
    else
    {
        cell = fTorrentCell;
        [cell setRepresentedObject: [self itemAtRow: row]];
    }
    return NSPointInRect(point, [cell progressRectForBounds: [self frameOfCellAtColumn: 0 row: row]]);
}

- (BOOL) pointInMinimalStatusRect: (NSPoint) point
{
    int row = [self rowAtPoint: point];
    if (row < 0 || ![[self itemAtRow: row] isKindOfClass: [Torrent class]] || ![fDefaults boolForKey: @"SmallView"])
        return NO;
    
    TorrentCell * cell;
    if ([NSApp isOnLeopardOrBetter])
        cell = (TorrentCell *)[self preparedCellAtColumn: 0 row: row];
    else
    {
        cell = fTorrentCell;
        [cell setRepresentedObject: [self itemAtRow: row]];
    }
    return NSPointInRect(point, [cell minimalStatusRectForBounds: [self frameOfCellAtColumn: 0 row: row]]);
}

- (void) updateFileMenu: (NSMenu *) menu forFiles: (NSArray *) files
{
    BOOL create = [menu numberOfItems] <= 0;
    
    NSEnumerator * enumerator = [files objectEnumerator];
    NSDictionary * dict;
    NSMenuItem * item;
    while ((dict = [enumerator nextObject]))
    {
        NSString * name = [dict objectForKey: @"Name"];
        
        if (create)
        {
            item = [[NSMenuItem alloc] initWithTitle: name action: @selector(checkFile:) keyEquivalent: @""];
            
            NSImage * icon;
            if (![[dict objectForKey: @"IsFolder"] boolValue])
                icon = [[NSWorkspace sharedWorkspace] iconForFileType: [name pathExtension]];
            else
            {
                NSMenu * itemMenu = [[NSMenu alloc] initWithTitle: name];
                [itemMenu setAutoenablesItems: NO];
                [item setSubmenu: itemMenu];
                [itemMenu setDelegate: self];
                [itemMenu release];
                
                icon = [[NSWorkspace sharedWorkspace] iconForFileType: NSFileTypeForHFSTypeCode('fldr')];
            }
            
            [item setRepresentedObject: dict];
            
            [icon setScalesWhenResized: YES];
            [icon setSize: NSMakeSize(16.0, 16.0)];
            [item setImage: icon];
            
            [menu addItem: item];
            [item release];
        }
        else
            item = [menu itemWithTitle: name];
        
        NSIndexSet * indexSet = [dict objectForKey: @"Indexes"];
        [item setState: [fMenuTorrent checkForFiles: indexSet]];
        [item setEnabled: [fMenuTorrent canChangeDownloadCheckForFiles: indexSet]];
    }
}

- (void) resizePiecesBarIncrement
{
    BOOL done;
    if ([fDefaults boolForKey: @"PiecesBar"])
    {
        fPiecesBarPercent = MIN(fPiecesBarPercent + PIECE_CHANGE, 1.0);
        done = fPiecesBarPercent == 1.0;
    }
    else
    {
        fPiecesBarPercent = MAX(fPiecesBarPercent - PIECE_CHANGE, 0.0);
        done = fPiecesBarPercent == 0.0;
    }
    
    if (done)
    {
        [fPiecesBarTimer invalidate];
        fPiecesBarTimer = nil;
    }
    
    [self reloadData];
}

@end