cog/Custom/AMRemovableColumnsTableView.m

300 lines
8.7 KiB
Objective-C

//
// AMRemovableColumnsTableView.m
// HebX
//
// Created by Andreas on 26.08.05.
// Copyright 2005 Andreas Mayer. All rights reserved.
//
#import "AMRemovableColumnsTableView.h"
#import "AMRemovableTableColumn.h"
@interface NSTableView (ApplePrivate)
- (void)_readPersistentTableColumns;
- (void)_writePersistentTableColumns;
@end
@interface AMRemovableColumnsTableView (Private)
- (NSString *)columnVisibilitySaveName;
- (void)setAllTableColumns:(NSSet *)newAllTableColumns;
- (void)am_hideTableColumn:(NSTableColumn *)column;
- (void)am_showTableColumn:(NSTableColumn *)column;
- (void)readPersistentTableColumns;
- (void)writePersistentTableColumns;
- (void)am_readPersistentTableColumns;
- (void)am_writePersistentTableColumns;
@end
@implementation AMRemovableColumnsTableView
static BOOL AMRemovableColumnsTableView_readPersistentTableColumnsIsPublic = NO;
+ (void)initialize
{
// should the framework support readPersistentTableColumns/writePersistentTableColumns, use the public methods
AMRemovableColumnsTableView_readPersistentTableColumnsIsPublic = [NSTableColumn instancesRespondToSelector:@selector(readPersistentTableColumns)];
}
- (void)awakeFromNib
{
am_respondsToControlDidBecomeFirstResponder = [[self delegate] respondsToSelector:@selector(controlDidBecomeFirstResponder:)];
// set main table view for columns
NSEnumerator *enumerator = [[self tableColumns] objectEnumerator];
AMRemovableTableColumn *column;
while (column = [enumerator nextObject]) {
[column setMainTableView:self];
}
// if there's an array of the names of obligatory columns, update the obligatoryTableColumns set
if (obligatoryColumnIdentifiers) {
NSMutableSet *columns = (NSMutableSet *)[NSMutableSet setWithSet:[self allTableColumns]];
NSEnumerator *enumerator = [columns objectEnumerator];
NSTableColumn *column;
while (column = [enumerator nextObject]) {
if (![(NSArray *)obligatoryColumnIdentifiers containsObject:[column identifier]]) {
[columns removeObject:column];
}
}
[self setObligatoryTableColumns:columns];
}
}
- (void)dealloc
{
[obligatoryColumnIdentifiers release];
[super dealloc];
}
- (NSSet *)allTableColumns
{
return allTableColumns;
}
- (void)setAllTableColumns:(NSSet *)newAllTableColumns
{
if (allTableColumns != newAllTableColumns) {
[newAllTableColumns retain];
[allTableColumns release];
allTableColumns = newAllTableColumns;
}
}
- (NSSet *)visibleTableColumns
{
NSMutableSet *result = [NSMutableSet set];
[result addObjectsFromArray:[self tableColumns]];
return result;
}
- (NSSet *)hiddenTableColumns
{
NSMutableSet *result = [NSMutableSet setWithSet:[self allTableColumns]];
[result minusSet:[self visibleTableColumns]];
return result;
}
- (NSSet *)obligatoryTableColumns
{
return obligatoryTableColumns;
}
- (void)setObligatoryTableColumns:(NSSet *)newObligatoryTableColumns
{
if (obligatoryTableColumns != newObligatoryTableColumns) {
[newObligatoryTableColumns retain];
[obligatoryTableColumns release];
obligatoryTableColumns = newObligatoryTableColumns;
}
}
- (BOOL)hideTableColumn:(NSTableColumn *)column
{
BOOL result = NO;
if (![(AMRemovableTableColumn *)column isHidden] && ![self isObligatoryColumn:column]) {
[(AMRemovableTableColumn *)column setHidden:YES];
result = YES;
}
return result;
}
- (BOOL)showTableColumn:(NSTableColumn *)column
{
BOOL result = NO;
if ([(AMRemovableTableColumn *)column isHidden]) {
[(AMRemovableTableColumn *)column setHidden:NO];
result = YES;
}
return result;
}
- (BOOL)isObligatoryColumn:(NSTableColumn *)column
{
return [(NSArray *)obligatoryColumnIdentifiers containsObject:[column identifier]] ;
}
// ============================================================
#pragma mark -
#pragma mark ━ table view methods ━
// ============================================================
- (NSTableColumn *)tableColumnWithIdentifier:(id)identifier
{
NSTableColumn *result = nil;
NSEnumerator *enumerator = [[self allTableColumns] objectEnumerator];
NSTableColumn *column;
while (column = [enumerator nextObject]) {
if ([[column identifier] isEqualToString:identifier]) {
result = column;
break;
}
}
return result;
}
- (void)setDelegate:(id)anObject
{
am_respondsToControlDidBecomeFirstResponder = [anObject respondsToSelector:@selector(controlDidBecomeFirstResponder:)];
[super setDelegate:anObject];
}
// ============================================================
#pragma mark -
#pragma mark ━ view methods ━
// ============================================================
- (void)viewWillMoveToWindow:(NSWindow *)newWindow
{
//NSLog(@"AMRemovableColumnsTableView - viewWillMoveToWindow:%@", newWindow);
[self am_readPersistentTableColumns];
[super viewWillMoveToWindow:newWindow];
}
// ============================================================
#pragma mark -
#pragma mark ━ responder methods ━
// ============================================================
- (BOOL)becomeFirstResponder
{
BOOL result = [super becomeFirstResponder];
if (result && am_respondsToControlDidBecomeFirstResponder) {
[[self delegate] performSelector:@selector(controlDidBecomeFirstResponder:) withObject:self];
}
return result;
}
// ============================================================
#pragma mark -
#pragma mark ━ private table view methods ━
// ============================================================
- (void)_readPersistentTableColumns
{
//NSLog(@"_readPersistentTableColumns");
if (!AMRemovableColumnsTableView_readPersistentTableColumnsIsPublic) {
[self setAllTableColumns:[NSSet setWithArray:[self tableColumns]]];
// restore visible columns
[self am_readPersistentTableColumns];
} // else readPersistentTableColumns will be used
[super _readPersistentTableColumns];
}
- (void)_writePersistentTableColumns
{
//NSLog(@"_writePersistentTableColumns");
[super _writePersistentTableColumns];
// save visible columns
if (!AMRemovableColumnsTableView_readPersistentTableColumnsIsPublic) {
[self am_writePersistentTableColumns];
} // else writePersistentTableColumns will be used
}
// just in case these methods should become public:
- (void)readPersistentTableColumns
{
//NSLog(@"_readPersistentTableColumns");
[self setAllTableColumns:[NSSet setWithArray:[self tableColumns]]];
// restore visible columns
[self am_readPersistentTableColumns];
[(id)super readPersistentTableColumns]; // cast to avoid compiler warning
}
- (void)writePersistentTableColumns
{
//NSLog(@"_writePersistentTableColumns");
[(id)super writePersistentTableColumns]; // cast to avoid compiler warning
// save visible columns
[self am_writePersistentTableColumns];
}
// ============================================================
#pragma mark -
#pragma mark ━ private methods ━
// ============================================================
- (NSString *)columnVisibilitySaveName
{
NSString *autosaveName = [self autosaveName];
if (!autosaveName) {
NSLog(@"AMRemovableColumnsTableView: autosave name missing for table view: %@", self);
autosaveName = @"no-autosave-name-set";
}
return [@"AMRemovableColumnsTableView VisibleColumns " stringByAppendingString:autosaveName];
}
- (void)am_readPersistentTableColumns
{
// restore visible columns
NSArray *visibleColumnIdentifiers = [[NSUserDefaults standardUserDefaults] objectForKey:[self columnVisibilitySaveName]];
if (visibleColumnIdentifiers) {
NSSet *allColumns = [self allTableColumns];
NSEnumerator *enumerator = [allColumns objectEnumerator];
NSTableColumn *column;
while (column = [enumerator nextObject]) {
if (![visibleColumnIdentifiers containsObject:[column identifier]]) {
[(AMRemovableTableColumn *)column setMainTableView:self];
[self removeTableColumn:column];
}
}
}
}
- (void)am_writePersistentTableColumns
{
NSMutableArray *visibleColumnIdentifiers = [NSMutableArray array];
NSEnumerator *enumerator = [[self visibleTableColumns] objectEnumerator];
NSTableColumn *column;
while (column = [enumerator nextObject]) {
[visibleColumnIdentifiers addObject:[column identifier]];
}
[[NSUserDefaults standardUserDefaults] setObject:visibleColumnIdentifiers forKey:[self columnVisibilitySaveName]];
}
- (void)am_hideTableColumn:(NSTableColumn *)column
{
[(AMRemovableTableColumn *)column setMainTableView:self];
[self removeTableColumn:column];
[NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(am_writePersistentTableColumns) object:nil];
[self performSelector:@selector(am_writePersistentTableColumns) withObject:nil afterDelay:0.0];
}
- (void)am_showTableColumn:(NSTableColumn *)column
{
[self addTableColumn:column];
[NSObject cancelPreviousPerformRequestsWithTarget:self selector:@selector(am_writePersistentTableColumns) object:nil];
[self performSelector:@selector(am_writePersistentTableColumns) withObject:nil afterDelay:0.0];
}
@end