source: trunk/Cocoa/DockCam/NJRHistoryTrackingComboBox.m@ 5

Last change on this file since 5 was 5, checked in by Nicholas Riley, 20 years ago

Initial import.

File size: 2.3 KB
Line 
1//
2// NJRHistoryTrackingComboBox.m
3// DockCam
4//
5// Created by Nicholas Riley on Fri Jun 28 2002.
6// Copyright (c) 2002 Nicholas Riley. All rights reserved.
7//
8
9#import "NJRHistoryTrackingComboBox.h"
10
11#define NJRHistoryTrackingComboBoxMaxItems 10
12
13@implementation NJRHistoryTrackingComboBox
14
15- (NSString *)_defaultKey;
16{
17 NSAssert([self tag] != 0, @"CanÕt track history for combo box with tag 0: please set a tag");
18 return [NSString stringWithFormat: @"NJRHistoryTrackingComboBox tag %d", [self tag]];
19}
20
21- (void)awakeFromNib;
22{
23 NSAssert([self tag] != 0, @"CanÕt track history for combo box with tag 0: please set a tag");
24 [[NSNotificationCenter defaultCenter] addObserver: self
25 selector: @selector(textDidEndEditing:)
26 name: NSTextDidEndEditingNotification
27 object: self];
28 [self removeAllItems];
29 [self addItemsWithObjectValues: [[NSUserDefaults standardUserDefaults] stringArrayForKey: [self _defaultKey]]];
30 [self setItemHeight: [self itemHeight] + 2];
31}
32
33- (void)_writeHistory;
34{
35 NSUserDefaults *defaults = [NSUserDefaults standardUserDefaults];
36 [defaults setObject: [self objectValues] forKey: [self _defaultKey]];
37 [defaults synchronize];
38}
39
40- (IBAction)removeEntry:(id)sender;
41{
42 int idx = [self indexOfSelectedItem];
43 if (idx == -1) {
44 [self selectItemWithObjectValue: [self stringValue]];
45 idx = [self indexOfSelectedItem];
46 }
47 if (idx != -1) [self removeItemAtIndex: idx];
48 [self setStringValue: @""];
49 [self _writeHistory];
50}
51
52- (IBAction)clearAllEntries:(id)sender;
53{
54 [self removeAllItems];
55 [self setStringValue: @""];
56 [self _writeHistory];
57}
58
59- (BOOL)textShouldEndEditing:(NSText *)textObject;
60{
61 NSString *newValue = [self stringValue];
62 int oldIndex = [self indexOfItemWithObjectValue: newValue];
63 [self removeItemWithObjectValue: newValue];
64 [self insertItemWithObjectValue: newValue atIndex: 0];
65 if (oldIndex == NSNotFound) {
66 int numItems = [self numberOfItems];
67 while (numItems-- > NJRHistoryTrackingComboBoxMaxItems) {
68 [self removeItemAtIndex: numItems - 1];
69 }
70 }
71 [self _writeHistory];
72 return YES;
73}
74
75@end
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