126 lines
4.9 KiB
C++
126 lines
4.9 KiB
C++
/***************************************************************************
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* Copyright (c) 2005 Werner Mayer <wmayer[at]users.sourceforge.net> *
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* *
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* This file is part of the FreeCAD CAx development system. *
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* *
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* This library is free software; you can redistribute it and/or *
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* modify it under the terms of the GNU Library General Public *
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* License as published by the Free Software Foundation; either *
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* version 2 of the License, or (at your option) any later version. *
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* *
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* This library is distributed in the hope that it will be useful, *
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* but WITHOUT ANY WARRANTY; without even the implied warranty of *
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* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the *
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* GNU Library General Public License for more details. *
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* *
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* You should have received a copy of the GNU Library General Public *
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* License along with this library; see the file COPYING.LIB. If not, *
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* write to the Free Software Foundation, Inc., 59 Temple Place, *
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* Suite 330, Boston, MA 02111-1307, USA *
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* *
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***************************************************************************/
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#ifndef GUI_SOFCCOLORGRADIENT_H
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#define GUI_SOFCCOLORGRADIENT_H
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#include <vector>
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#include <Inventor/SbBox2f.h>
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#include <Inventor/nodes/SoSeparator.h>
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#include "SoFCColorBar.h"
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class SoCoordinate3;
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class SoIndexedFaceSet;
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class SoMaterial;
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class SoMaterialBinding;
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class SoMFString;
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class SoTransparencyType;
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class SbVec2s;
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namespace Gui {
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class GuiExport SoFCColorGradient : public SoFCColorBarBase {
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using inherited = SoFCColorBarBase;
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SO_NODE_HEADER(Gui::SoFCColorGradient);
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public:
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static void initClass();
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static void finish();
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SoFCColorGradient();
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/**
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* Sets the range of the colorbar from the maximum \a fMax to the minimum \a fMin.
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* \a prec indicates the post decimal positions, \a prec should be in between 0 and 6.
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*/
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void setRange( float fMin, float fMax, int prec=3 ) override;
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/**
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* Returns the associated color to the value \a fVal.
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*/
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App::Color getColor (float fVal) const override { return _cColGrad.getColor(fVal); }
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void setOutsideGrayed (bool bVal) override { _cColGrad.setOutsideGrayed(bVal); }
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/**
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* Returns always true if the gradient is in mode to show colors to arbitrary values of \a fVal,
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* otherwise true is returned if \a fVal is within the specified parameter range, if not false is
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* returned.
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*/
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bool isVisible (float fVal) const override;
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/** Returns the current minimum of the parameter range. */
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float getMinValue () const override { return _cColGrad.getMinValue(); }
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/** Returns the current maximum of the parameter range. */
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float getMaxValue () const override { return _cColGrad.getMaxValue(); }
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/**
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* Opens a dialog to customize the current settings of the color gradient bar.
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*/
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void customize(SoFCColorBarBase*) override;
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/** Returns the name of the color bar. */
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const char* getColorBarName() const override;
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protected:
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void applyFormat(const SoLabelTextFormat& fmt) override;
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/**
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* Sets the current viewer size this color gradient is embedded into, to recalculate its new position.
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*/
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void setViewportSize( const SbVec2s& size ) override;
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~SoFCColorGradient() override;
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/**
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* Sets the color model of the underlying color gradient to \a index.
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*/
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void setColorModel (std::size_t index);
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/**
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* Sets the color style of the underlying color gradient to \a tStyle. \a tStyle either can
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* be \c FLOW or \c ZERO_BASED
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*/
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void setColorStyle (App::ColorBarStyle tStyle);
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/** Rebuild the gradient bar. */
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void rebuildGradient();
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/** Returns a list of \a count labels within the range [\a fMin, \a fMax]. */
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std::vector<float> getMarkerValues(float fMin, float fMax, int count) const;
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private:
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bool isZeroBased(float fMin, float fMax) const;
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/** Sets the new labels. */
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int getNumColors() const;
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void setMarkerLabel( const SoMFString& label );
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void modifyPoints(const SbBox2f&);
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void setCoordSize(int numPoints);
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SoIndexedFaceSet* createFaceSet(int numFaces) const;
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SoTransparencyType* createTransparencyType() const;
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SoMaterial* createMaterial() const;
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SoMaterialBinding* createMaterialBinding() const;
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private:
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SoCoordinate3* coords;
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SoSeparator* labels;
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SbBox2f _bbox;
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int _precision{3};
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App::ColorGradient _cColGrad;
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};
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} // namespace Gui
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#endif // GUI_SOFCCOLORGRADIENT_H
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