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112 lines
3.9 KiB
Plaintext
112 lines
3.9 KiB
Plaintext
/*
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* CPOutlineView.j
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* AppKit
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*
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* Created by Francisco Tolmasky.
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* Copyright 2008, 280 North, Inc.
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*
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* This library is free software; you can redistribute it and/or
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* modify it under the terms of the GNU Lesser General Public
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* License as published by the Free Software Foundation; either
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* version 2.1 of the License, or (at your option) any later version.
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*
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* This library is distributed in the hope that it will be useful,
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* but WITHOUT ANY WARRANTY; without even the implied warranty of
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU
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* Lesser General Public License for more details.
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*
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* You should have received a copy of the GNU Lesser General Public
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* License along with this library; if not, write to the Free Software
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* Foundation, Inc., 51 Franklin Street, Fifth Floor, Boston, MA 02110-1301 USA
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*/
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import "CPTableView.j"
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/*
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@ignore
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This class is a subclass of <objj>CPTableView</objj> which provides the user with a way to display
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tree structured data in an outline format. It is particularly useful for displaying hierarchical data
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such as a class inheritance tree or any other set of relationships.
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*/
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@implementation CPOutlineView : CPTableView
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{
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id _outlineDataSource;
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CPArray _itemsByRow;
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}
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- (id)initWithFrame:(CGRect)aFrame
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{
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self = [super initWithFrame:aFrame];
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if (self)
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{
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[super setDataSource:self];
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_itemsByRow = [[CPArray alloc] init];
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}
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return self;
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}
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/*
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@ignore
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Sets the outline's data source. The data source must implement the following methods:
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<pre>
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- (id)outlineView:(<objj>CPOutlineView</objj>)outlineView child:(int)index ofItem:(id)item
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- (BOOL)outlineView:(<objj>CPOutlineView</objj>)outlineView isItemExpandable:(id)item
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- (int)outlineView:(<objj>CPOutlineView</objj>)outlineView numberOfChildrenOfItem:(id)item
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- (id)outlineView:(<objj>CPOutlineView</objj>)outlineView objectValueForTableColumn:(<objj>CPTableColumn</objj>)tableColumn byItem:(id)item
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</pre>
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@param aDataSource the outline's data source
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@throws CPInternalInconsistencyException if the data source does not implement all the required methods
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*/
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- (void)setDataSource:(id)aDataSource
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{
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if (![aDataSource respondsToSelector:@selector(outlineView:child:ofItem)])
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[CPException raise:CPInternalInconsistencyException reason:"Data source must implement 'outlineView:child:ofItem'"];
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if (![aDataSource respondsToSelector:@selector(outlineView:isItemExpandable)])
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[CPException raise:CPInternalInconsistencyException reason:"Data source must implement 'outlineView:isItemExpandable'"];
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if (![aDataSource respondsToSelector:@selector(outlineView:numberOfChildrenOfItem)])
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[CPException raise:CPInternalInconsistencyException reason:"Data source must implement 'outlineView:numberOfChildrenOfItem'"];
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if (![aDataSource respondsToSelector:@selector(outlineView:objectValueForTableColumn:byItem)])
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[CPException raise:CPInternalInconsistencyException reason:"Data source must implement 'outlineView:objectValueForTableColumn:byItem'"];
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_outlineDataSource = aDataSource;
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[self reloadData];
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}
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/* @ignore */
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- (void)reloadData
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{
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_numberOfVisibleItems = [_outlineDataSource outlineView:self numberOfChildrenOfItem:nil];
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_numberOfRows = _numberOfVisibleItems;
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var i = 0;
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for (; i < _numberOfVisibleItems; ++i)
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_itemsByRow[i] = [_outlineDataSource outlineView:self child:i ofItem:nil];
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[self loadTableCellsInRect:[self bounds]];
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}
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@end
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/* @ignore */
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@implementation CPOutlineView (CPTableDataSource)
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/*
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FIXME
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*/
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/* @ignore */
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- (void)numberOfRowsInTableView:(CPTableView)aTableView
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{
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return _numberOfVisibleItems;
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}
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/* @ignore */
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- (void)tableView:(CPTableView)aTableView objectValueForTableColumn:(CPTableColumn)aTableColumn row:(int)aRowIndex
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{
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return [_outlineDataSource outlineView:self objectValueForTableColumn:aTableColumn byItem:_itemsByRow[aRowIndex]];
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}
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@end |