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//
// MSchemaDataSource.m
// MySQLGUICommon
//
// Created by Alfredo Kojima on Sun Jun 27 2004.
// Copyright (c) 2004 MySQL AB. All rights reserved.
//
#import "MSchemaDataSource.h"
@implementation MSchemaItem
- (id)initWithCatalog: (MYX_CATALOG*)catalog
icon: (NSImage*)aicon
{
if (!(self= [super init]))
return nil;
type= MCatalogItemType;
_object.catalog= catalog;
_repr= nil;
icon= [aicon retain];
return self;
}
- (id)initWithSchema: (MYX_SCHEMA*)schema
parentCatalog: (MSchemaItem*)parentItem
icon: (NSImage*)aicon
{
if (!(self= [super init]))
return nil;
type= MSchemaItemType;
_object.schema= schema;
parent= parentItem;
_repr= nil;
icon= [aicon retain];
return self;
}
- (id)initWithTable: (MYX_SCHEMA_TABLE*)table
parentSchema: (MSchemaItem*)parentItem
icon: (NSImage*)aicon
{
if (!(self= [super init]))
return nil;
type= MTableItemType;
_object.table= table;
parent= parentItem;
_repr= nil;
icon= [aicon retain];
return self;
}
- (id)initWithColumn: (MYX_SCHEMA_TABLE_COLUMN*)column
parentTable: (MSchemaItem*)parentItem
icon: (NSImage*)aicon
{
if (!(self= [super init]))
return nil;
type= MColumnItemType;
_object.column= column;
_repr= nil;
parent= parentItem;
icon= [aicon retain];
return self;
}
- (void)dealloc
{
[_identifier release];
[_repr release];
[icon release];
[super dealloc];
}
- (NSImage*)icon
{
return icon;
}
- (id)identifier
{
if (!_identifier)
_identifier= [[NSString stringWithFormat:@"%p",self] retain];
return _identifier;
}
- (NSString*)repr
{
if (!_repr)
{
switch (type)
{
case MCatalogItemType:
_repr= [NSString stringWithUTF8String: _object.catalog->catalog_name?:"?"];
break;
case MSchemaItemType:
_repr= [NSString stringWithUTF8String: _object.schema->schema_name?:""];
break;
case MTableItemType:
_repr= [NSString stringWithUTF8String: _object.table->table_name?:""];
break;
case MColumnItemType:
_repr= [NSString stringWithUTF8String: _object.column->column_name?:""];
break;
}
[_repr retain];
}
return _repr;
}
- (MYX_CATALOG*)catalog
{
MSchemaItem *item= nil;
switch (type)
{
case MCatalogItemType:
item= self;
break;
case MSchemaItemType:
item= self->parent;
break;
case MTableItemType:
item= self->parent->parent;
break;
case MColumnItemType:
item= self->parent->parent->parent;
break;
}
return item ? item->_object.catalog : NULL;
}
- (MYX_SCHEMA*)schema
{
MSchemaItem *item= nil;
switch (type)
{
case MSchemaItemType:
item= self;
break;
case MTableItemType:
item= self->parent;
break;
case MColumnItemType:
item= self->parent->parent;
break;
default:
NSAssert(0,@"invalid type (table)");
break;
}
return item ? item->_object.schema : NULL;
}
- (MYX_SCHEMA_TABLE*)table
{
MSchemaItem *item= nil;
switch (type)
{
case MTableItemType:
item= self;
break;
case MColumnItemType:
item= self->parent;
break;
default:
NSAssert(0,@"invalid type (table)");
break;
}
return item ? item->_object.table : NULL;
}
- (MYX_SCHEMA_TABLE_COLUMN*)column
{
MSchemaItem *item= nil;
switch (type)
{
case MColumnItemType:
item= self;
break;
default:
NSAssert(0,@"invalid type (table)");
break;
}
return item ? item->_object.column : NULL;
}
@end
//==============================================================================
@implementation MSchemaDataSource
- (MSchemaItem*)findItem: (NSString*)name
{
/*
int i, c= [_rootList count];
for (i= 0; i < c; i++)
{
if ([[[_rootList objectAtIndex:i] repr] isEqualToString:name])
return [_rootList objectAtIndex:i];
}
*/
return nil;
}
- (id)initWithRoot: (MSchemaDSItemType)root
leaf: (MSchemaDSItemType)leaf
{
self= [super init];
if (self)
{
_rootType= root;
_leafType= leaf;
_children= [[NSMutableDictionary alloc] init];
_items= [[NSMutableDictionary alloc] init];
}
return self;
}
- (void)dealloc
{
[_children release];
[_items release];
[super dealloc];
}
- (void)setTableFetcher:(id)target selector:(SEL)sel
{
_tableFetcher= target;
_tableFetcherAction= sel;
}
- (void)resetTree
{
[_children removeAllObjects];
[_items removeAllObjects];
}
- (void)setChildren: (NSMutableArray*)array
forItem: (MSchemaItem*)item
{
unsigned int i, c;
NSMutableArray *children;
children= [NSMutableArray arrayWithCapacity:[array count]];
c= [array count];
for (i= 0; i < c; i++)
{
MSchemaItem *obj= [array objectAtIndex:i];
[_items setObject:obj forKey:[obj identifier]];
[children addObject:[obj identifier]];
}
[_children setObject:children forKey:item ? [item identifier] : @"root"];
}
- (id)outlineView:(NSOutlineView *)outlineView
child:(int)index
ofItem:(id)item
{
if (item == nil)
return [_items objectForKey:[[_children objectForKey:@"root"] objectAtIndex: index]];
else
{
id tmp= [_children objectForKey:[item identifier]];
if (!tmp)
{
[_tableFetcher performSelector:_tableFetcherAction
withObject:self
withObject:item];
return @"Loading...";
}
else
return [_items objectForKey:[tmp objectAtIndex:index]];
}
}
- (BOOL)outlineView:(NSOutlineView *)outlineView
isItemExpandable:(id)item
{
if ([item isMemberOfClass:[MSchemaItem class]] && ((MSchemaItem*)item)->type < _leafType)
return YES;
else
return NO;
}
- (int)outlineView:(NSOutlineView *)outlineView
numberOfChildrenOfItem:(id)item
{
if (item == nil)
return [[_children objectForKey:@"root"] count];
else if ([item isKindOfClass: [NSString class]]) // the Loading... string
return 0;
else
{
id tmp= [_children objectForKey:[item identifier]];
if (!tmp)
return 1; // for Loading...
else
return [tmp count];
}
}
- (id)outlineView:(NSOutlineView *)outlineView
objectValueForTableColumn:(NSTableColumn *)tableColumn
byItem:(id)item
{
if ([item isMemberOfClass: [MSchemaItem class]])
return [item repr];
else
return item; // NSString for Loading...
}
@end
//==============================================================================
@implementation MFilteredSchemaDataSource
- (id)initWithDataSource:(MSchemaDataSource*)parent
{
self= [super initWithRoot:parent->_rootType leaf:parent->_leafType];
if (self)
{
_parentDS= parent;
}
return self;
}
- (void)setRootList: (NSMutableArray*)array
{
NSLog(@"NSFilteredSchemaDataSource should not have its rootList changed");
}
- (id)outlineView:(NSOutlineView *)outlineView
child:(int)index
ofItem:(id)item
{
if (!_filter)
return [_parentDS outlineView:outlineView child:index ofItem:item];
else
return [super outlineView:outlineView child:index ofItem:item];
}
- (BOOL)outlineView:(NSOutlineView *)outlineView
isItemExpandable:(id)item
{
if (!_filter)
return [_parentDS outlineView:outlineView isItemExpandable:item];
else
return [super outlineView:outlineView isItemExpandable:item];
}
- (int)outlineView:(NSOutlineView *)outlineView
numberOfChildrenOfItem:(id)item
{
if (!_filter)
return [_parentDS outlineView:outlineView numberOfChildrenOfItem:item];
else
return [super outlineView:outlineView numberOfChildrenOfItem:item];
}
- (id)outlineView:(NSOutlineView *)outlineView
objectValueForTableColumn:(NSTableColumn *)tableColumn
byItem:(id)item
{
if (!_filter)
return [_parentDS outlineView:outlineView
objectValueForTableColumn:tableColumn
byItem:item];
else
return [super outlineView:outlineView
objectValueForTableColumn:tableColumn
byItem:item];
}
- (BOOL)filterChildren:(NSArray*)children
ofItem:(MSchemaItem*)item
matching:(NSString*)filter
{
unsigned int i, c= [children count];
NSMutableArray *array= [NSMutableArray arrayWithCapacity:1];
for (i= 0; i < c; i++)
{
id ident= [children objectAtIndex:i];
id obj= [_parentDS->_items objectForKey:ident];
NSArray *ch= [_parentDS->_children objectForKey:ident];
BOOL ok= NO;
if ([[obj repr] rangeOfString:filter].location!=NSNotFound)
ok= YES,
NSLog(@"%@ matche", [obj repr]);
if (ch && [self filterChildren:ch ofItem:obj matching:filter])
ok= YES;
if (ok)
[array addObject:ident];
}
[_children setObject:array forKey:[item identifier]];
return [array count]>0;
}
- (BOOL)removeChildren:(NSMutableArray*)children
ofItem:(MSchemaItem*)item
notMatching:(NSString*)filter
{
int i, c= [children count];
int matches= 0;
for (i= c-1; i >= 0; i--)
{
id ident= [children objectAtIndex:i];
id obj= [_parentDS->_items objectForKey:ident];
NSMutableArray *ch= [_parentDS->_children objectForKey:ident];
if (ch && [self removeChildren:ch ofItem:obj notMatching:filter])
{
matches++;
}
else if ([[obj repr] rangeOfString:filter].location!=NSNotFound)
{
matches++;
}
else
{
[children removeObject:ident];
}
}
return matches>0;
}
- (void)performSearch:(NSString*)filter
{
int i, c;
// NSLog(@"filter by %@", filter);
if (!filter || [filter length] == 0)
{
[_filter release];
_filter= nil;
}
else if (!_filter || [filter rangeOfString:_filter].location == NSNotFound)
{
NSArray *array;
NSMutableArray *rootArray= nil;
[_filter release];
_filter= [filter retain];
[_children removeAllObjects];
array= [_parentDS->_children objectForKey:@"root"];
c= [array count];
for (i= 0; i < c; i++)
{
if ([self filterChildren:[_parentDS->_children objectForKey:[array objectAtIndex:i]]
ofItem:[_parentDS->_items objectForKey:[array objectAtIndex:i]]
matching:filter])
{
if (!rootArray)
rootArray= [NSMutableArray arrayWithCapacity:1];
[rootArray addObject:[array objectAtIndex:i]];
}
}
if (rootArray)
{
[_children setObject:rootArray forKey:@"root"];
_items= _parentDS->_items;
}
}
else // incremental search
{
NSMutableArray *array;
[_filter release];
_filter= [filter retain];
array= [_children objectForKey:@"root"];
c= [array count];
for (i= c-1; i >= 0; i--)
{
if (![self removeChildren:[_children objectForKey:[array objectAtIndex:i]]
ofItem:[_parentDS->_items objectForKey:[array objectAtIndex:i]]
notMatching:filter])
{
[array removeObject:[array objectAtIndex:i]];
}
}
}
}
@end
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