Glyph.h

/*
 *
 * This file is part of Tulip (www.tulip-software.org)
 *
 * Authors: David Auber and the Tulip development Team
 * from LaBRI, University of Bordeaux
 *
 * Tulip 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 3
 * of the License, or (at your option) any later version.
 *
 * Tulip 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.
 *
 */
///@cond DOXYGEN_HIDDEN

#ifndef GLYPH_H
#define GLYPH_H

#ifndef DOXYGEN_NOTFOR_DEVEL

#include <tulip/Plugin.h>
#include <tulip/Size.h>
#include <tulip/Coord.h>
#include <tulip/BoundingBox.h>
#include <tulip/PluginContext.h>

namespace tlp {

static const std::string GLYPH_CATEGORY = "Node shape";

class Graph;
struct node;
class GlGraphInputData;

class GlyphContext : public PluginContext {
public:
  GlGraphInputData *glGraphInputData;
  ///
  GlyphContext(Graph ** =NULL, GlGraphInputData *glGraphInputData=NULL, int =5, int =5):
    glGraphInputData(glGraphInputData) {
  }
  ///
  ~GlyphContext() {
  }
};
//==========================================================
class TLP_GL_SCOPE Glyph : public tlp::Plugin {
public:
  std::string category() const {
    return GLYPH_CATEGORY;
  }
  std::string icon() const {
    return ":/tulip/gui/icons/32/plugin_glyph.png";
  }

  Glyph(const tlp::PluginContext* context);
  virtual ~Glyph();

  virtual std::string getGroup() const {
    return "";
  }

  virtual void getIncludeBoundingBox(BoundingBox &boundingBox,node) {
    boundingBox[0] = Coord(-0.5,-0.5,-0.5);
    boundingBox[1] = Coord(0.5,0.5,0.5);
  }

  virtual void getTextBoundingBox(BoundingBox &boundingBox,node n) {
    getIncludeBoundingBox(boundingBox,n);
  }

  virtual void draw(node,float)=0;
  /*
   * return a point where an edge coming from "from" can be attached
   * by default, the point will be on the surface of the largest sphere contained
   * inside the unit cube (before scaling).
   */
  virtual Coord getAnchor(const Coord &nodeCenter, const Coord &from,
                          const Size &scale, const double zRotation) const;

  /**
   * Return if the Glyph render its label (return true) or if GlNode have to render label (return false)
   */
  virtual bool renderLabel() {
    return false;
  }

  GlGraphInputData *glGraphInputData;

protected:
  /*
   * called by public method getAnchor to actually compute the anchor point
   * vector is coordinate of the point to anchor to, relative to nodecenter
   * glyph size is (1,1,1)
   * this is the method to redefine for each glyph where the default 'getAnchor' method
   * is inapropriated
   * Returned value is a vector to be applied to 'nodeCenter' in the public method
   */
  virtual Coord getAnchor(const Coord &vector) const;
};

}

#define GLYPHINFORMATION(NAME, AUTHOR, DATE, INFO, RELEASE, ID) \
PLUGININFORMATION(NAME, AUTHOR, DATE, INFO, RELEASE, "")\
int id() const { return ID; }

#endif // DOXYGEN_NOTFOR_DEVEL

#endif //GLYPH_H
///@endcond