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/**
*
* This file is part of Tulip (www.tulip-software.org)
*
* Authors: David Auber and the Tulip development Team
* from LaBRI, University of Bordeaux 1 and Inria Bordeaux - Sud Ouest
*
* 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.
*
*/
#include <cmath>
#include <string>
#include <tulip/StringProperty.h>
#include <tulip/ColorProperty.h>
#include <tulip/SizeProperty.h>
#include <tulip/Size.h>
#include <tulip/Coord.h>
#include <tulip/Glyph.h>
#include <tulip/Graph.h>
#include <tulip/GlRect.h>
using namespace std;
using namespace tlp;
/** \addtogroup glyph */
/*@{*/
/// A 2D glyph.
/**
* This glyph draws a textured square using the "viewTexture"
* node property value. If this property has no value, the square is
* then colored using the "viewColor" node property value.
* It is unsensitive to any axis rotation and so always remains displayed
* in the same position.
*/
class Billboard : public Glyph {
public:
Billboard(GlyphContext *gc=NULL);
virtual ~Billboard();
virtual void draw(node n,float lod);
virtual Coord getAnchor(const Coord &vector) const;
protected:
static GlRect *rect;
};
GlRect* Billboard::rect=0;
GLYPHPLUGIN(Billboard, "2D - Billboard", "Gerald Gainant", "08/03/2004", "Textured billboard", "1.0", 7);
//===================================================================================
Billboard::Billboard(GlyphContext *gc): Glyph(gc) {
if(!rect)
rect = new GlRect(Coord(0,0,0),Size(1,1,0),Color(0,0,0,255),Color(0,0,0,255));
}
//========================================================
Billboard::~Billboard() {
}
//========================================================
void Billboard::draw(node n,float lod) {
rect->setFillColor(glGraphInputData->getElementColor()->getNodeValue(n));
rect->setOutlineColor(glGraphInputData->getElementBorderColor()->getNodeValue(n));
string texFile = glGraphInputData->getElementTexture()->getNodeValue(n);
if (texFile != "") {
string texturePath=glGraphInputData->parameters->getTexturePath();
rect->setTextureName(texturePath+texFile);
}
else {
rect->setTextureName("");
}
double borderWidth=glGraphInputData->getElementBorderWidth()->getNodeValue(n);
if (borderWidth < 1e-6)
borderWidth=1e-6;
rect->setOutlineSize(static_cast<float>(borderWidth));
// setup orientation
float mdlM[16];
glGetFloatv( GL_MODELVIEW_MATRIX, mdlM );
glMatrixMode( GL_MODELVIEW );
glPushMatrix();
Size sz(1,1,1);
if( glGraphInputData->getElementSize() )
sz = glGraphInputData->getElementSize()->getNodeValue(n);
float nx = sz.getW();
float ny = sz.getH();
float nz = sz.getD();
mdlM[0] = nx;
mdlM[5] = ny;
mdlM[10] = nz;
mdlM[1] = mdlM[2] = 0.0f;
mdlM[4] = mdlM[6] = 0.0f;
mdlM[8] = mdlM[9] = 0.0f;
glLoadMatrixf( mdlM );
rect->draw(lod,NULL);
glPopMatrix();
}
//========================================================
Coord Billboard::getAnchor(const Coord & vector ) const {
Coord v( vector );
float x,y,z, fmax;
v.get(x,y,z);
v.setZ( 0.0f );
fmax = std::max(fabsf(x), fabsf(y));// fmax = fabsf(x) >? fabsf(y);
if( fmax > 0.0f )
return v * (0.5f/fmax);
else
return v;
}
//========================================================
/*@}*/
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