vcl/inc/opengl/LineRenderUtils.hxx

   1 /* -*- Mode: C++; tab-width: 4; indent-tabs-mode: nil; c-basic-offset: 4 -*- */
   2 /*
   3  * This file is part of the LibreOffice project.
   4  *
   5  * This Source Code Form is subject to the terms of the Mozilla Public
   6  * License, v. 2.0. If a copy of the MPL was not distributed with this
   7  * file, You can obtain one at http://mozilla.org/MPL/2.0/.
   8  *
   9  */
  10
  11 #ifndef INCLUDED_VCL_INC_OPENGL_LINERENDERUTILS_H
  12 #define INCLUDED_VCL_INC_OPENGL_LINERENDERUTILS_H
  13
  14 #include <opengl/RenderList.hxx>
  15
  16 namespace vcl
  17 {
  18 class LineBuilder
  19 {
  20 private:
  21     std::vector<Vertex>& mrVertices;
  22     std::vector<GLuint>& mrIndices;
  23     GLubyte mR, mG, mB, mA;
  24     GLfloat const mfLineWidth;
  25     GLfloat const mfLineWidthAndAA;
  26     size_t const mnInitialIndexSize;
  27     bool mbIncomplete;
  28
  29 public:
  30     LineBuilder(std::vector<Vertex>& rVertices, std::vector<GLuint>& rIndices,
  31                 Color nColor, GLfloat fTransparency,
  32                 GLfloat fLineWidth, bool bUseAA);
  33
  34     void appendLineSegment(const glm::vec2& rPoint1, const glm::vec2& rNormal1, GLfloat aExtrusion1,
  35                            const glm::vec2& rPoint2, const glm::vec2& rNormal2, GLfloat aExtrusion2);
  36
  37     void appendLine(const glm::vec2& rPoint1, const glm::vec2& rPoint2);
  38
  39     void appendAndConnectLinePoint(const glm::vec2& rPoint, const glm::vec2& aNormal, GLfloat aExtrusion);
  40
  41     void appendMiterJoint(glm::vec2 const& point, const glm::vec2& prevLineVector,
  42                           glm::vec2 const& nextLineVector);
  43     void appendBevelJoint(glm::vec2 const& point, const glm::vec2& prevLineVector,
  44                           const glm::vec2& nextLineVector);
  45     void appendRoundJoint(glm::vec2 const& point, const glm::vec2& prevLineVector,
  46                           const glm::vec2& nextLineVector);
  47     void appendRoundLineCapVertices(const glm::vec2& rPoint1, const glm::vec2& rPoint2);
  48     void appendSquareLineCapVertices(const glm::vec2& rPoint1, const glm::vec2& rPoint2);
  49 };
  50
  51 } // end vcl
  52
  53 #endif // INCLUDED_VCL_INC_OPENGL_LINERENDERUTILS_H
  54
  55 /* vim:set shiftwidth=4 softtabstop=4 expandtab: */