/*
 * Move_Line_Up.bsh - Beanshell macro to move a line up by one line.
 *
 * Copyright (C) 2002 Lee Turner (lee@leeturner.org)
 * Version 1.0
 *
 * :tabSize=4:indentSize=4:noTabs=false:
 * :folding=explicit:collapseFolds=1:
 *
 * 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 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.
 */

// Lets first check to see if the buffer is readonly as we can't make
// updates to a readonly buffer now can we......
if(buffer.isReadOnly())
{
	Macros.error(view, "This file is read only.");
	return;
}

// move current line one line up
boolean onLastLine = ((textArea.getCaretLine()+1) == buffer.getLineCount());

textArea.selectLine();
Registers.copy(textArea,'_');
textArea.selectNone();
textArea.deleteLine();

if(onLastLine)
{
	textArea.goToStartOfLine(false);
	Registers.paste(textArea,'_',false);
	textArea.setSelectedText("\n");
	textArea.goToPrevLine(false);
}
else
{
	textArea.goToPrevLine(false);
	textArea.goToStartOfLine(false);
	Registers.paste(textArea,'_',false);
	textArea.setSelectedText("\n");
	textArea.goToPrevLine(false);
}