/*
 * Duplicate_Selection_Line.bsh - a BeanShell macro script for the
 * jEdit text editor - duplicates the cursor line or current selection if has it.
 * by Sergey Kojin, sergey dot kojin at gmail dot com
 *
 * duplicate the cursor line code copied from buildin macro Duplicate_Line.bsh 
 * of  Francesc Roses froses@menta.net
 * 
 * no multiple selection supported
 * this macro behavior is like IntelliJ IDEA Ctlr+D feature  
 *
 *
 * Checked for jEdit 4.3.pre3
 */


void duplicateSelectionLine()
{
    if(buffer.isReadOnly()){         
        Macros.error(view, "This file is read only.");
        return;
    }
    if( textArea.getSelectionCount() > 0 ){
		sel = textArea.getSelection(0);
		offset = sel.getStart();
		if( textArea.getCaretPosition() == offset ){ //forse caret pos to end of selection
			textArea.setCaretPosition( sel.getEnd() );
			textArea.resizeSelection(offset, sel.getEnd(), 0, false);
		}
		text = textArea.getSelectedText( sel );
		buffer.insert(offset, text);
    } else { // just duplicate current line
		line = textArea.getCaretLine();
		offset = textArea.getLineEndOffset(line);
		// handle last line differently
		if(line == textArea.getLineCount() - 1){
			text = "\n" + textArea.getLineText(line);
			--offset;
		}
		else {
			text = textArea.getLineText(line) + "\n";
		}
		buffer.insert(offset, text);
		textArea.goToNextLine(false);
	}
}

duplicateSelectionLine();