eeschema: neatly wrap placeholder text in symbol chooser

include/gr_basic.h

@@ -3,24 +3,20 @@
  *
  * Copyright (C) 2015 Jean-Pierre Charras, jp.charras at wanadoo.fr
  * Copyright (C) 2011 Wayne Stambaugh <[email protected]>
- * Copyright (C) 1992-2015 KiCad Developers, see AUTHORS.txt for contributors.
+ * Copyright (C) 1992-2018 KiCad Developers, see AUTHORS.txt for contributors.
  *
- * 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 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 3 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.
+ * 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, you may find one here:
- * http://www.gnu.org/licenses/old-licenses/gpl-2.0.html
- * or you may search the http://www.gnu.org website for the version 2 license,
- * or you may write to the Free Software Foundation, Inc.,
- * 51 Franklin Street, Fifth Floor, Boston, MA  02110-1301, USA
+ * You should have received a copy of the GNU General Public License along
+ * with this program.  If not, see <http://www.gnu.org/licenses/>.
  */
 
 /**
@@ -259,4 +255,11 @@ void GRLineArray(  EDA_RECT* aClipBox, wxDC* aDC,std::vector<wxPoint>& aLines,
 void GRDrawAnchor( EDA_RECT* aClipBox, wxDC *aDC, int x, int y, int aSize,
                    COLOR4D aColor );
 
+/**
+ * Draw text centered on a wxDC with wrapping.
+ * @param aDC wxDC instance onto which the text will be drawn
+ * @param aText the text to draw
+ */
+void GRDrawWrappedText( wxDC& aDC, wxString const& aText );
+
 #endif      /* define GR_BASIC */