//
//  $Id$
//
//  CMCopyTable.m
//  sequel-pro
//
//  Created by Stuart Glenn on Wed Apr 21 2004.
//  Changed by Lorenz Textor on Sat Nov 13 2004
//  Copyright (c) 2004 Stuart Glenn. All rights reserved.
//
//  This program is free software; you can redistribute it and/or modify
//  it under the terms of the GNU General Public License as published by
//  the Free Software Foundation; either version 2 of the License, or
//  (at your option) any later version.
//
//  This program is distributed in the hope that it will be useful,
//  but WITHOUT ANY WARRANTY; without even the implied warranty of
//  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
//  GNU General Public License for more details.
//
//  You should have received a copy of the GNU General Public License
//  along with this program; if not, write to the Free Software
//  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA

#import "CMCopyTable.h"

int MENU_EDIT_COPY_WITH_COLUMN = 2001;

@implementation CMCopyTable

- (void)copy:(id)sender
{
	NSString *tmp = nil;

	BOOL withHeaders = NO;
	if([sender tag] == MENU_EDIT_COPY_WITH_COLUMN) {
		withHeaders = YES;
	}
	
	tmp = [self selectedRowsAsTabStringWithHeaders:withHeaders];		
	if ( nil != tmp )
	{
		NSPasteboard *pb = [NSPasteboard generalPasteboard];
		
		[pb declareTypes:[NSArray arrayWithObjects: NSTabularTextPboardType, 
			NSStringPboardType, nil]
				   owner:nil];
		
		[pb setString:tmp forType:NSStringPboardType];
		[pb setString:tmp forType:NSTabularTextPboardType];
	}
}

//allow for drag-n-drop out of the application as a copy
- (unsigned int)draggingSourceOperationMaskForLocal:(BOOL)isLocal
{
	return NSDragOperationCopy;
}

//only have the copy menu item enabled when row(s) are selected
- (BOOL)validateMenuItem:(NSMenuItem*)anItem 
{	
	int row = [self selectedRow];
	if ( [[anItem title] isEqualToString:@"Copy"] || [anItem tag] == MENU_EDIT_COPY_WITH_COLUMN )
	{
		if (row < 0 )
		{
			return NO;
		}
	}
	return YES;
}

//get selected rows a string of newline separated lines of tab separated fields
//the value in each field is from the objects description method
- (NSString *)selectedRowsAsTabStringWithHeaders:(BOOL)withHeaders
{
	if ( [self numberOfSelectedRows] > 0 )
	{
		NSArray *columns = [self tableColumns];
		int numColumns = [columns count];
		id dataSource = [self dataSource];
		
		NSMutableString *result = [NSMutableString stringWithCapacity:numColumns];
		
		if(withHeaders) {
			int i;
			for( i = 0; i < numColumns; i++ ){
				[result appendString:[NSString stringWithFormat:@"%@\t", [[[columns objectAtIndex:i] headerCell] stringValue]]];
			}
			[result appendString:[NSString stringWithFormat:@"\n"]];
		}
		
		//this is really deprecated in 10.3, but the new method is really weird
		NSEnumerator *enumerator = [self selectedRowEnumerator]; 
		
		int c;
		id row = nil;
		id rowData = nil;
		NSTableColumn *col = nil;
		
		while (row = [enumerator nextObject]) 
		{ 
			rowData = nil;
			for ( c = 0; c < numColumns; c++)
			{
				col = [columns objectAtIndex:c];
				rowData = [dataSource tableView:self 
					  objectValueForTableColumn:col 
											row:[row intValue] ];
				
				if ( nil != rowData )
				{
					[result appendString:[NSString stringWithFormat:@"%@\t", [rowData description] ] ];
				}
				else
				{
					[result appendString:@"\t"];
				}
			} //end for each column
			
			if ( [result length] )
			{
				[result deleteCharactersInRange:NSMakeRange([result length]-1, 1)];
			}
			[result appendString: [ NSString stringWithFormat:@"\n"]];
		} //end for each row
		
		if ( [result length] )
		{
			[result deleteCharactersInRange:NSMakeRange([result length]-1, 1)];
		}
		return result;
	}
	else
	{
		return nil;
	}
}

//get dragged rows a string of newline separated lines of tab separated fields
//the value in each field is from the objects description method
- (NSString *)draggedRowsAsTabString:(NSArray *)rows
{
	if ( [rows count] > 0 )
	{
		NSArray *columns = [self tableColumns];
		int numColumns = [columns count];
		id dataSource = [self dataSource];
		
		NSMutableString *result = [NSMutableString stringWithCapacity:numColumns];

		//this is really deprecated in 10.3, but the new method is really weird
		NSEnumerator *enumerator = [rows objectEnumerator]; 
		
		int c;
		id row = nil;
		id rowData = nil;
		NSTableColumn *col = nil;
		
		while (row = [enumerator nextObject]) 
		{ 
			rowData = nil;
			for ( c = 0; c < numColumns; c++)
			{
				col = [columns objectAtIndex:c];
				rowData = [dataSource tableView:self 
					  objectValueForTableColumn:col 
											row:[row intValue] ];
				
				if ( nil != rowData )
				{
					[result appendString:[NSString stringWithFormat:@"%@\t", [rowData description] ] ];
				}
				else
				{
					[result appendString:@"\t"];
				}
			} //end for each column
			
			if ( [result length] )
			{
				[result deleteCharactersInRange:NSMakeRange([result length]-1, 1)];
			}
			[result appendString: [ NSString stringWithFormat:@"\n"]];
		} //end for each row
		
		if ( [result length] )
		{
			[result deleteCharactersInRange:NSMakeRange([result length]-1, 1)];
		}
		return result;
	}
	else
	{
		return nil;
	}
}

@end