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/*
*
* Copyright (C) 2000 Silicon Graphics, Inc. All Rights Reserved.
*
* This library is free software; you can redistribute it and/or
* modify it under the terms of the GNU Lesser General Public
* License as published by the Free Software Foundation; either
* version 2.1 of the License, or (at your option) any later version.
*
* This library 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
* Lesser General Public License for more details.
*
* Further, this software is distributed without any warranty that it is
* free of the rightful claim of any third person regarding infringement
* or the like. Any license provided herein, whether implied or
* otherwise, applies only to this software file. Patent licenses, if
* any, provided herein do not apply to combinations of this program with
* other software, or any other product whatsoever.
*
* You should have received a copy of the GNU Lesser General Public
* License along with this library; if not, write to the Free Software
* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
*
* Contact information: Silicon Graphics, Inc., 1600 Amphitheatre Pkwy,
* Mountain View, CA 94043, or:
*
* http://www.sgi.com
*
* For further information regarding this notice, see:
*
* http://oss.sgi.com/projects/GenInfo/NoticeExplan/
*
*/
// -*- C++ -*-
/*
* Copyright (C) 1990,91 Silicon Graphics, Inc.
*
_______________________________________________________________________
______________ S I L I C O N G R A P H I C S I N C . ____________
|
| $Revision: 1.1.1.1 $
|
| Description:
| This file defines the SoText2 node class.
|
| Author(s) : Thad Beier
|
______________ S I L I C O N G R A P H I C S I N C . ____________
_______________________________________________________________________
*/
#ifndef _SO_TEXT_2_
#define _SO_TEXT_2_
#include <Inventor/fields/SoMFString.h>
#include <Inventor/fields/SoSFEnum.h>
#include <Inventor/fields/SoSFFloat.h>
#include <Inventor/nodes/SoShape.h>
// C-api: end
class SoBitmapFontCache; // Internal class
// C-api: begin
//////////////////////////////////////////////////////////////////////////////
//
// Class: SoText2
//
// 2D, screen-aligned text. The origin of the text is always 0,0,0
// in object space, but the text is always the same size (based on
// the fontSize from the SoFont node) and is always aligned with the
// screen.
//
//////////////////////////////////////////////////////////////////////////////
// C-api: prefix=SoTxt2
// C-api: public=string, interval, justification
class SoText2 : public SoShape {
SO_NODE_HEADER(SoText2);
public:
enum Justification { // Justification types
LEFT = 0x01,
RIGHT = 0x02,
CENTER = 0x03
};
// Fields
SoMFString string; // the strings to display
SoSFFloat spacing; // interval between strings
SoSFEnum justification;
// Constructor
SoText2();
SoEXTENDER public:
virtual void GLRender(SoGLRenderAction *action);
virtual void rayPick(SoRayPickAction *action);
SoINTERNAL public:
static void initClass();
protected:
// This method is a no-op for SoText2, since there are no
// primitives it can generate
virtual void generatePrimitives(SoAction *action);
// Computes bounding box of text
virtual void computeBBox(SoAction *action, SbBox3f &box,
SbVec3f ¢er);
virtual ~SoText2();
private:
// Based on justification and line spacing, this returns the
// offset (in pixels) for one of the lines of text.
SbVec3f getPixelStringOffset(int whichLine);
// Internal class that allows Text2 nodes to share font
// information, GL display lists, etc.
SoBitmapFontCache *myFont;
};
#endif /* _SO_TEXT_2_ */
|
