kindred/create
1
1
Fork 0
Code Issues 53 Pull Requests Actions Packages Projects 9 Releases 2 Wiki Activity
Files
f3e722c6de635e2eddc82aafbd2fbe4d4f9bdb4f
create/src/Gui/SoFCColorGradient.cpp
wmayer 120ca87015 + unify DLL export defines to namespace names 
git-svn-id: https://free-cad.svn.sourceforge.net/svnroot/free-cad/trunk@5000 e8eeb9e2-ec13-0410-a4a9-efa5cf37419d
2011-10-10 13:44:52 +00:00

358 lines
11 KiB
C++
Raw Blame History

/***************************************************************************
* Copyright (c) 2005 Werner Mayer <wmayer[at]users.sourceforge.net> *
* *
* This file is part of the FreeCAD CAx development system. *
* *
* This library is free software; you can redistribute it and/or *
* modify it under the terms of the GNU Library General Public *
* License as published by the Free Software Foundation; either *
* version 2 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 Library General Public License for more details. *
* *
* You should have received a copy of the GNU Library General Public *
* License along with this library; see the file COPYING.LIB. If not, *
* write to the Free Software Foundation, Inc., 59 Temple Place, *
* Suite 330, Boston, MA 02111-1307, USA *
* *
***************************************************************************/
#include "PreCompiled.h"
#ifndef _PreComp_
# include <sstream>
# include <Inventor/fields/SoMFString.h>
# include <Inventor/nodes/SoBaseColor.h>
# include <Inventor/nodes/SoCoordinate3.h>
# include <Inventor/nodes/SoIndexedFaceSet.h>
# include <Inventor/nodes/SoMaterial.h>
# include <Inventor/nodes/SoText2.h>
# include <Inventor/nodes/SoTransform.h>
# include <Inventor/nodes/SoTransparencyType.h>
#endif
#include "SoFCColorGradient.h"
#include "DlgSettingsColorGradientImp.h"
#include "MainWindow.h"
#include "MDIView.h"
using namespace Gui;
SO_NODE_SOURCE(SoFCColorGradient);
/*!
Constructor.
*/
SoFCColorGradient::SoFCColorGradient() : _fMaxX(4.5f), _fMinX(4.0f), _fMaxY(4.0f), _fMinY(-4.0f), _bOutInvisible(false), _precision(3)
{
SO_NODE_CONSTRUCTOR(SoFCColorGradient);
coords = new SoCoordinate3;
coords->ref();
labels = new SoSeparator;
labels->ref();
_cColGrad.setStyle(App::ColorGradient::FLOW);
setColorModel( App::ColorGradient::TRIA );
setRange(-0.5f, 0.5f, 1);
}
/*!
Destructor.
*/
SoFCColorGradient::~SoFCColorGradient()
{
//delete THIS;
coords->unref();
labels->unref();
}
// doc from parent
void SoFCColorGradient::initClass(void)
{
SO_NODE_INIT_CLASS(SoFCColorGradient,SoFCColorBarBase,"Separator");
}
void SoFCColorGradient::finish()
{
atexit_cleanup();
}
void SoFCColorGradient::setMarkerLabel( const SoMFString& label )
{
labels->removeAllChildren();
float fH=8.0f;
int num = label.getNum();
if ( num > 1 )
{
float fStep = fH / ((float)num-1);
SoTransform* trans = new SoTransform;
trans->translation.setValue(_fMaxX+0.1f,_fMaxY-0.05f+fStep,0.0f);
labels->addChild(trans);
for ( int i=0; i<num; i++ )
{
SoTransform* trans = new SoTransform;
SoBaseColor* color = new SoBaseColor;
SoText2 * text2 = new SoText2;
trans->translation.setValue(0,-fStep,0);
color->rgb.setValue(0,0,0);
text2->string.setValue( label[i] );
labels->addChild(trans);
labels->addChild(color);
labels->addChild(text2);
}
}
}
void SoFCColorGradient::setViewportSize( const SbVec2s& size )
{
// don't know why the parameter range isn't between [-1,+1]
float fRatio = ((float)size[0])/((float)size[1]);
float fMinX= 4.0f, fMaxX=4.5f;
float fMinY= -4.0f, fMaxY=4.0f;
if ( fRatio > 1.0f )
{
fMinX = 4.0f * fRatio;
fMaxX = fMinX+0.5f;
}
else if ( fRatio < 1.0f )
{
fMinY = -4.0f / fRatio;
fMaxY = 4.0f / fRatio;
}
_fMaxX = fMaxX;
_fMinX = fMinX;
_fMaxY = fMaxY;
_fMinY = fMinY;
// search for the labels
int num=0;
for ( int i=0; i<labels->getNumChildren(); i++ )
{
if ( labels->getChild(i)->getTypeId() == SoTransform::getClassTypeId() )
num++;
}
if ( num > 2 )
{
bool first=true;
float fStep = (fMaxY-fMinY) / ((float)num-2);
for ( int j=0; j<labels->getNumChildren(); j++ )
{
if ( labels->getChild(j)->getTypeId() == SoTransform::getClassTypeId() )
{
if ( first )
{
first = false;
static_cast<SoTransform*>(labels->getChild(j))->translation.setValue(fMaxX+0.1f,fMaxY-0.05f+fStep,0.0f);
}
else
{
static_cast<SoTransform*>(labels->getChild(j))->translation.setValue(0,-fStep,0.0f);
}
}
}
}
// set the vertices spanning the faces for the color gradient
int ct = coords->point.getNum()/2;
for ( int j=0; j<ct; j++ )
{
float w = (float)j/(float)(ct-1);
float fPosY = (1.0f-w)*_fMaxY + w*_fMinY;
coords->point.set1Value(2*j, _fMinX, fPosY, 0.0f);
coords->point.set1Value(2*j+1, _fMaxX, fPosY, 0.0f);
}
}
void SoFCColorGradient::setRange( float fMin, float fMax, int prec )
{
_cColGrad.setRange(fMin, fMax);
SoMFString label;
float fFac = (float)pow(10.0, (double)prec);
int i=0;
std::vector<float> marks = getMarkerValues(fMin, fMax, _cColGrad.getCountColors());
for ( std::vector<float>::iterator it = marks.begin(); it != marks.end(); ++it )
{
std::stringstream s;
s.precision(prec);
s.setf(std::ios::fixed | std::ios::showpoint | std::ios::showpos);
float fValue = *it;
if ( fabs(fValue*fFac) < 1.0 )
fValue = 0.0f;
s << fValue;
label.set1Value(i++, s.str().c_str());
}
setMarkerLabel( label );
}
std::vector<float> SoFCColorGradient::getMarkerValues(float fMin, float fMax, int count) const
{
std::vector<float> labels;
// the middle of the bar is zero
if ( fMin < 0.0f && fMax > 0.0f && _cColGrad.getStyle() == App::ColorGradient::ZERO_BASED )
{
if ( count % 2 == 0) count++;
int half = count / 2;
for (int j=0; j<half+1; j++)
{
float w = (float)j/((float)half);
float fValue = (1.0f-w)*fMax;
labels.push_back( fValue );
}
for (int k=half+1; k<count; k++)
{
float w = (float)(k-half+1)/((float)(count-half));
float fValue = w*fMin;
labels.push_back( fValue );
}
}
else // either not zero based or 0 is not in between [fMin,fMax]
{
for (int j=0; j<count; j++)
{
float w = (float)j/((float)count-1.0f);
float fValue = (1.0f-w)*fMax+w*fMin;
labels.push_back( fValue );
}
}
return labels;
}
void SoFCColorGradient::setColorModel( App::ColorGradient::TColorModel tModel )
{
_cColGrad.setColorModel( tModel );
rebuildGradient();
}
void SoFCColorGradient::setColorStyle (App::ColorGradient::TStyle tStyle)
{
_cColGrad.setStyle( tStyle );
rebuildGradient();
}
void SoFCColorGradient::rebuildGradient()
{
App::ColorModel model = _cColGrad.getColorModel();
int uCtColors = (int)model._usColors;
coords->point.setNum(2*uCtColors);
for ( int i=0; i<uCtColors; i++ )
{
float w = (float)i/(float)(uCtColors-1);
float fPosY = (1.0f-w)*_fMaxY + w*_fMinY;
coords->point.set1Value(2*i, _fMinX, fPosY, 0.0f);
coords->point.set1Value(2*i+1, _fMaxX, fPosY, 0.0f);
}
// for uCtColors colors we need 2*(uCtColors-1) facets and therefore an array with
// 8*(uCtColors-1) face indices
SoIndexedFaceSet * faceset = new SoIndexedFaceSet;
faceset->coordIndex.setNum(8*(uCtColors-1));
for ( int j=0; j<uCtColors-1; j++ )
{
faceset->coordIndex.set1Value(8*j, 2*j);
faceset->coordIndex.set1Value(8*j+1, 2*j+3);
faceset->coordIndex.set1Value(8*j+2, 2*j+1);
faceset->coordIndex.set1Value(8*j+3, SO_END_FACE_INDEX);
faceset->coordIndex.set1Value(8*j+4, 2*j);
faceset->coordIndex.set1Value(8*j+5, 2*j+2);
faceset->coordIndex.set1Value(8*j+6, 2*j+3);
faceset->coordIndex.set1Value(8*j+7, SO_END_FACE_INDEX);
}
// set an own transparency type for this color bar only
SoTransparencyType* ttype = new SoTransparencyType;
ttype->value = SoGLRenderAction::DELAYED_BLEND;
SoMaterial* mat = new SoMaterial;
//mat->transparency = 0.3f;
mat->diffuseColor.setNum(2*uCtColors);
for ( int k=0; k<uCtColors; k++ )
{
App::Color col = model._pclColors[uCtColors-k-1];
mat->diffuseColor.set1Value(2*k, col.r, col.g, col.b);
mat->diffuseColor.set1Value(2*k+1, col.r, col.g, col.b);
}
SoMaterialBinding* matBinding = new SoMaterialBinding;
matBinding->value = SoMaterialBinding::PER_VERTEX_INDEXED;
// first clear the children
if ( getNumChildren() > 0 )
removeAllChildren();
addChild(ttype);
addChild(labels);
addChild(coords);
addChild(mat);
addChild(matBinding);
addChild(faceset);
}
bool SoFCColorGradient::isVisible (float fVal) const
{
if (_bOutInvisible == true)
{
float fMin, fMax;
_cColGrad.getRange(fMin, fMax);
if ((fVal > fMax) || (fVal < fMin))
return false;
else
return true;
}
return true;
}
bool SoFCColorGradient::customize()
{
QWidget* parent = Gui::getMainWindow()->activeWindow();
Gui::Dialog::DlgSettingsColorGradientImp dlg(parent);
dlg.setColorModel( _cColGrad.getColorModelType() );
dlg.setColorStyle( _cColGrad.getStyle() );
dlg.setOutGrayed( _cColGrad.isOutsideGrayed() );
dlg.setOutInvisible( _bOutInvisible );
dlg.setNumberOfLabels( _cColGrad.getCountColors() );
dlg.setNumberOfDecimals( _precision );
float fMin, fMax;
_cColGrad.getRange(fMin, fMax);
dlg.setRange(fMin, fMax);
QPoint pos(QCursor::pos());
pos += QPoint((int)(-1.1*dlg.width()),(int)(-0.1*dlg.height()));
dlg.move( pos );
if ( dlg.exec() == QDialog::Accepted )
{
_cColGrad.setColorModel( dlg.colorModel() );
_cColGrad.setStyle( dlg.colorStyle() );
_cColGrad.setOutsideGrayed( dlg.isOutGrayed() );
_bOutInvisible = dlg.isOutInvisible();
_cColGrad.setCountColors( dlg.numberOfLabels() );
_precision = dlg.numberOfDecimals();
dlg.getRange( fMin, fMax );
int dec = dlg.numberOfDecimals();
setRange( fMin, fMax, dec );
rebuildGradient();
return true;
}
return false;
}
Reference in New Issue View Git Blame Copy Permalink