94 lines
2.7 KiB
C++
94 lines
2.7 KiB
C++
//============================================================================
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// Copyright (c) Kitware, Inc.
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// All rights reserved.
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// See LICENSE.txt for details.
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// This software is distributed WITHOUT ANY WARRANTY; without even
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// the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
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// PURPOSE. See the above copyright notice for more information.
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//
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// Copyright 2016 National Technology & Engineering Solutions of Sandia, LLC (NTESS).
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// Copyright 2016 UT-Battelle, LLC.
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// Copyright 2016 Los Alamos National Security.
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//
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// Under the terms of Contract DE-NA0003525 with NTESS,
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// the U.S. Government retains certain rights in this software.
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//
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// Under the terms of Contract DE-AC52-06NA25396 with Los Alamos National
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// Laboratory (LANL), the U.S. Government retains certain rights in
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// this software.
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//============================================================================
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#include <vtkm/rendering/ColorLegendAnnotation.h>
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namespace vtkm
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{
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namespace rendering
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{
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ColorLegendAnnotation::ColorLegendAnnotation()
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{
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this->FontScale = 0.05f;
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this->LabelColor = vtkm::rendering::Color::white;
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}
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ColorLegendAnnotation::~ColorLegendAnnotation()
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{
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for (int i = 0; i < Annot.size(); i++)
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{
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delete Annot[i];
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}
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Annot.clear();
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}
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void ColorLegendAnnotation::Clear()
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{
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this->Labels.clear();
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this->ColorSwatchList.clear();
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}
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void ColorLegendAnnotation::AddItem(const std::string& label, vtkm::rendering::Color color)
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{
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this->Labels.push_back(label);
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this->ColorSwatchList.push_back(color);
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}
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void ColorLegendAnnotation::Render(const vtkm::rendering::Camera& camera,
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const vtkm::rendering::WorldAnnotator& annotator,
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vtkm::rendering::Canvas& canvas)
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{
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vtkm::Float32 l = -0.95f, r = -0.90f;
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vtkm::Float32 b = +0.90f, t = +0.95f;
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for (unsigned int i = 0; i < this->ColorSwatchList.size(); ++i)
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{
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canvas.AddColorSwatch(l, b, l, t, r, t, r, b, this->ColorSwatchList[i]);
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b -= 0.07f;
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t -= 0.07f;
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}
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// reset positions
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l = -0.95f;
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r = -0.90f;
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b = +0.90f;
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t = +0.95f;
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while (this->Annot.size() < this->Labels.size())
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{
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this->Annot.push_back(new vtkm::rendering::TextAnnotationScreen(
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"test", this->LabelColor, this->FontScale, vtkm::Vec<vtkm::Float32, 2>(0, 0), 0));
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}
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for (unsigned int i = 0; i < this->Annot.size(); ++i)
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{
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TextAnnotationScreen* txt = Annot[i];
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txt->SetText(Labels[i]);
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txt->SetPosition(r + .02f, (b + t) / 2.f);
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txt->SetAlignment(TextAnnotationScreen::Left, TextAnnotationScreen::VCenter);
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txt->Render(camera, annotator, canvas);
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b -= 0.07f;
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t -= 0.07f;
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}
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}
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}
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} // namespace vtkm::rendering
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