Example #1
0
void TSC_source::cmd_tab(bool invert, bool backup)
{
	QString str;
	int selline1,selcol1,selline2,selcol2;
	if (!G_sel(selline1,selcol1,selline2,selcol2))
	{
		//try to indent
		int linenr=G_cursor_linenr();
		if ((linenr<0)||(linenr>=G_linecount())) return;
		int colnr=G_cursor_colnr();
		if ((colnr<G_line(linenr)->G_length())) return;
		if (backup) undo_begin();
		(*lines[linenr])+=_qstr("   ");
		if (backup) addundo(new TSC_source_undoaction_insertstring(this,_qstr("   ")));
		cursor_colnr+=3;
		if (backup) undo_end();
		modified=true;
		return;
	}

	//shift group block
	if (backup) undo_begin();
	int ct1=selline1;
	int ct2=selline2;
	if (selcol2<0) ct2=selline2-1;
	for (int i=ct1; i<=ct2; i++)
	{
		if (!invert)
		{
			cursor_linenr=i;cursor_colnr=0;
			str=_qstr(" ");
			str+=*lines[cursor_linenr];
			if (backup) addundo(new TSC_source_undoaction_insertstring(this,_qstr(" ")));
			*lines[cursor_linenr]=str;
		}
		else
		{
			cursor_linenr=i;cursor_colnr=0;
			str=*lines[cursor_linenr];
			if (str.G_char(0)==' ')
			{
				str.substring(1,str.G_length()-1);
				if (backup) addundo(new TSC_source_undoaction_del(this,1));
				*lines[cursor_linenr]=str;
			}
		}
	}
	if (backup) undo_end();
	modified=true;
}