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executable file 145 lines (104 sloc) 4.268 kb
// FastListDataSource.m
// Notation
// Created by Zachary Schneirov on 1/8/06.
/*Copyright (c) 2010, Zachary Schneirov. All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted
provided that the following conditions are met:
- Redistributions of source code must retain the above copyright notice, this list of conditions
and the following disclaimer.
- Redistributions in binary form must reproduce the above copyright notice, this list of
conditions and the following disclaimer in the documentation and/or other materials provided with
the distribution.
- Neither the name of Notational Velocity nor the names of its contributors may be used to endorse
or promote products derived from this software without specific prior written permission. */
#import "FastListDataSource.h"
#import "NotesTableView.h"
#import "NoteAttributeColumn.h"
@implementation FastListDataSource
- (const id *)immutableObjects {
return (const id *)objects;
- (NSUInteger)count {
return count;
- (NSUInteger)indexOfObjectIdenticalTo:(id)address {
register NSUInteger i;
if (address) {
for (i=0; i<count; i++) {
if (objects[i] == address)
return i;
return NSNotFound;
//NSArray has objectsAtIndexes--too bad it's only in 10.4.
//figure out which notes are in the indexset
- (NSArray*)objectsAtFilteredIndexes:(NSIndexSet*)indexSet {
NSUInteger indexBuffer[40];
NSUInteger bufferIndex;
NSUInteger indexCount = 1;
NSRange range = NSMakeRange([indexSet firstIndex],
[indexSet lastIndex]-[indexSet firstIndex]+1);
NSMutableArray *objectsInIndexSet = [[NSMutableArray alloc] initWithCapacity:[indexSet count]];
while ((indexCount = [indexSet getIndexes:indexBuffer maxCount:40 inIndexRange:&range])) {
for (bufferIndex=0; bufferIndex < indexCount; bufferIndex++) {
NSUInteger objIndex = indexBuffer[bufferIndex];
if (objIndex < count)
[objectsInIndexSet addObject:objects[objIndex]];
NSLog(@"objectsAtFilteredIndexes: index is %lu ( > %lu)", objIndex, count);
return [objectsInIndexSet autorelease];
//as long as this class is only used for temporary display, we probably do not need to uncomment the retains and releases
- (void)fillArrayFromArray:(NSArray*)array {
NSUInteger oldArraySize = count;
//release old values
//unsigned int i;
if (objects) {
//for (i=0; i<count; i++)
//objRelease(objects[i], @selector(release));
count = CFArrayGetCount((CFArrayRef)array);
if (count > oldArraySize) {
objects = (id*)realloc(objects, count * sizeof(id));
CFArrayGetValues((CFArrayRef)array, CFRangeMake(0, count), (const void **)objects);
//retain new ones
//for (i=0; i<count; i++)
//objRetain(objects[i], @selector(retain));
- (BOOL)filterArrayUsingFunction:(BOOL (*)(id, void*))present context:(void*)context {
register NSUInteger j = 0, i, oldCount = count;
if (!objects)
return NO;
for (i=0; i<oldCount; i++) {
id obj = objects[i];
if (present(obj, context)) {
objects[j++] = obj;
} else {
//objRelease(obj, @selector(release));
count = j;
return (count != oldCount);
- (void)sortStableUsingFunction:(NSInteger (*)(id *, id *))compare {
mergesort((void *)objects, (size_t)count, sizeof(id), (int (*)(const void *, const void *))compare);
- (void)tableView:(NSTableView *)aTableView setObjectValue:(id)anObject
forTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex {
//allow the tableview to override the selector destination for this object value
SEL colAttributeMutator = [(NotesTableView*)aTableView attributeSetterForColumn:(NoteAttributeColumn*)aTableColumn];
[objects[rowIndex] performSelector:colAttributeMutator ? colAttributeMutator : columnAttributeMutator((NoteAttributeColumn*)aTableColumn) withObject:anObject];
- (id)tableView:(NSTableView *)aTableView objectValueForTableColumn:(NSTableColumn *)aTableColumn row:(NSInteger)rowIndex {
return columnAttributeForObject((NotesTableView*)aTableView, (NoteAttributeColumn*)aTableColumn, objects[rowIndex], rowIndex);
- (NSInteger)numberOfRowsInTableView:(NSTableView *)aTableView {
return count;
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