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78 lines
2.5 KiB
C++
78 lines
2.5 KiB
C++
/*=========================================================================
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Program: ParaView
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Module: pqPresetToPixmap.h
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Copyright (c) 2005,2006 Sandia Corporation, Kitware Inc.
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All rights reserved.
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ParaView is a free software; you can redistribute it and/or modify it
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under the terms of the ParaView license version 1.2.
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See License_v1.2.txt for the full ParaView license.
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A copy of this license can be obtained by contacting
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Kitware Inc.
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28 Corporate Drive
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Clifton Park, NY 12065
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USA
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THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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``AS IS'' AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHORS OR
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CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL,
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EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO,
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PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR
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PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF
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LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING
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NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
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SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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========================================================================*/
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#ifndef pqPresetToPixmap_h
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#define pqPresetToPixmap_h
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#include <QObject>
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#include <QScopedPointer>
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#include "pqComponentsModule.h"
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namespace Json
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{
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class Value;
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}
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class vtkPiecewiseFunction;
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class vtkScalarsToColors;
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class QPixmap;
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class QSize;
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/// pqPresetToPixmap is a helper class to generate QPixmap from a color/opacity
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/// preset. Use pqPresetToPixmap::render() to generate a QPixmap for a transfer
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/// function.
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class PQCOMPONENTS_EXPORT pqPresetToPixmap : public QObject
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{
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Q_OBJECT
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typedef QObject Superclass;
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public:
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pqPresetToPixmap(QObject* parent=0);
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virtual ~pqPresetToPixmap();
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/// Render a preset to a pixmap for the given resolution.
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QPixmap render(const Json::Value &preset, const QSize& resolution) const;
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protected:
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/// Renders a color transfer function preset.
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QPixmap renderColorTransferFunction(
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vtkScalarsToColors* stc, vtkPiecewiseFunction* pf, const QSize& resolution) const;
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/// Renders a color transfer function preset.
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QPixmap renderIndexedColorTransferFunction(vtkScalarsToColors* stc, const QSize& resolution) const;
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private:
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Q_DISABLE_COPY(pqPresetToPixmap);
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class pqInternals;
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QScopedPointer<pqInternals> Internals;
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};
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#endif
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