CText.cpp

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/* +------------------------------------------------------------------------+
   |                     Mobile Robot Programming Toolkit (MRPT)            |
   |                          https://www.mrpt.org/                         |
   |                                                                        |
   | Copyright (c) 2005-2019, Individual contributors, see AUTHORS file     |
   | See: https://www.mrpt.org/Authors - All rights reserved.               |
   | Released under BSD License. See: https://www.mrpt.org/License          |
   +------------------------------------------------------------------------+ */

#include "opengl-precomp.h"  // Precompiled header

#include <mrpt/opengl/CText.h>
#include <mrpt/serialization/CArchive.h>
#include "opengl_internals.h"

using namespace mrpt;
using namespace mrpt::opengl;

using namespace mrpt::math;
using namespace std;

IMPLEMENTS_SERIALIZABLE(CText, CRenderizable, mrpt::opengl)

/*---------------------------------------------------------------
                            Constructor
  ---------------------------------------------------------------*/
CText::CText(const string& str)
{
    m_str = str;

    m_fontName = "Arial";
    m_fontHeight = 10;
    m_fontWidth = 0;
}

/*---------------------------------------------------------------
                            Destructor
  ---------------------------------------------------------------*/
CText::~CText() = default;
/*---------------------------------------------------------------
                            render
  ---------------------------------------------------------------*/
void CText::render() const
{
#if MRPT_HAS_OPENGL_GLUT
    glDisable(GL_DEPTH_TEST);
    glDisable(GL_LIGHTING);

    glColor4ub(m_color.R, m_color.G, m_color.B, m_color.A);
    // Set the "cursor" to the XYZ position:
    glRasterPos3f(0, 0, 0);  // m_x,m_y,m_z);

    // Call the lists for drawing the text:
    renderTextBitmap(m_str.c_str(), GLUT_BITMAP_TIMES_ROMAN_10);

    glEnable(GL_LIGHTING);
    glEnable(GL_DEPTH_TEST);
#endif
}

uint8_t CText::serializeGetVersion() const { return 1; }
void CText::serializeTo(mrpt::serialization::CArchive& out) const
{
    writeToStreamRender(out);
    out << m_str;
    out << m_fontName;
    out << (uint32_t)m_fontHeight << (uint32_t)m_fontWidth;
}

void CText::serializeFrom(mrpt::serialization::CArchive& in, uint8_t version)
{
    switch (version)
    {
        case 0:
        case 1:
        {
            uint32_t i;
            readFromStreamRender(in);
            in >> m_str;
            if (version >= 1)
            {
                in >> m_fontName;
                in >> i;
                m_fontHeight = i;
                in >> i;
                m_fontWidth = i;
            }
        }
        break;
        default:
            MRPT_THROW_UNKNOWN_SERIALIZATION_VERSION(version);
    };
}

void CText::getBoundingBox(
    mrpt::math::TPoint3D& bb_min, mrpt::math::TPoint3D& bb_max) const
{
    bb_min.x = 0;
    bb_min.y = 0;
    bb_min.z = 0;

    bb_max = bb_min;

    // Convert to coordinates of my parent:
    m_pose.composePoint(bb_min, bb_min);
    m_pose.composePoint(bb_max, bb_max);
}