rudder_angle.cpp

/******************************************************************************
 * $Id: rudder_angle.cpp, v1.0 2010/08/26 SethDart Exp $
 *
 * Project:  OpenCPN
 * Purpose:  Dashboard Plugin
 * Author:   Jean-Eudes Onfray
 *
 ***************************************************************************
 *   Copyright (C) 2010 by David S. Register   *
 *                                                                         *
 *   This program is free software; you can redistribute it and/or modify  *
 *   it under the terms of the GNU General Public License as published by  *
 *   the Free Software Foundation; either version 2 of the License, or     *
 *   (at your option) any later version.                                   *
 *                                                                         *
 *   This program is distributed in the hope that it will be useful,       *
 *   but WITHOUT ANY WARRANTY; without even the implied warranty of        *
 *   MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the         *
 *   GNU General Public License for more details.                          *
 *                                                                         *
 *   You should have received a copy of the GNU General Public License     *
 *   along with this program; if not, write to the                         *
 *   Free Software Foundation, Inc.,                                       *
 *   51 Franklin Street, Fifth Floor, Boston, MA 02110-1301,  USA.             *
 ***************************************************************************
 */
 
#include "rudder_angle.h"
 
// For compilers that support precompilation, includes "wx/wx.h".
#include <wx/wxprec.h>
 
#ifdef __BORLANDC__
#pragma hdrstop
#endif
 
// for all others, include the necessary headers (this file is usually all you
// need because it includes almost all "standard" wxWidgets headers)
#ifndef WX_PRECOMP
#include <wx/wx.h>
#endif
 
DashboardInstrument_RudderAngle::DashboardInstrument_RudderAngle(
    wxWindow* parent, wxWindowID id, wxString title,
    InstrumentProperties* Properties)
    : DashboardInstrument_Dial(parent, id, title, Properties, OCPN_DBP_STC_RSA,
                               100, 160, -40, +40) {
  // Default Rudder position is centered
  m_MainValue = 0;
 
  // SetOptionMainValue(_T("%3.0f Deg"), DIAL_POSITION_BOTTOMLEFT);
  SetOptionMarker(5, DIAL_MARKER_REDGREEN, 2);
  // Labels are set static because we've no logic to display them this way
  wxString labels[] = {_T("40"), _T("30"), _T("20"), _T("10"), _T("0"),
                       _T("10"), _T("20"), _T("30"), _T("40")};
  SetOptionLabel(10, DIAL_LABEL_HORIZONTAL, wxArrayString(9, labels));
  //      SetOptionExtraValue(_T("%02.0f"), DIAL_POSITION_INSIDE);
}
 
wxSize DashboardInstrument_RudderAngle::GetSize(int orient, wxSize hint) {
  InitTitleSize();
 
  int w;
  if (orient == wxHORIZONTAL) {
    w = wxMax(hint.y, (DefaultWidth - m_TitleHeight) / .7);
  } else {
    w = wxMax(hint.x, DefaultWidth);
  }
  return wxSize(w, m_TitleHeight + w * .7);
}
 
void DashboardInstrument_RudderAngle::SetData(DASH_CAP st, double data,
                                              wxString unit) {
  if (st == m_MainValueCap) {
    // Dial works clockwise but Rudder has negative values for left
    // and positive for right so we must inverse it.
    data = -data;
 
    if (data < m_MainValueMin)
      m_MainValue = m_MainValueMin;
    else if (data > m_MainValueMax)
      m_MainValue = m_MainValueMax;
    else
      m_MainValue = data;
    m_MainValueUnit = unit;
  } else if (st == m_ExtraValueCap) {
    m_ExtraValue = data;
    m_ExtraValueUnit = unit;
  } else
    return;
}
 
void DashboardInstrument_RudderAngle::DrawFrame(wxGCDC* dc) {
  // We don't need the upper part
  // Move center up
  wxSize size = GetClientSize();
  wxColour cl;
 
  int drawHeight = GetDataBottom(size.y) - m_DataTop;
  InitTitleAndDataPosition(drawHeight);
 
  m_cx = size.x / 2;
  m_cy = m_DataTop + (drawHeight) * 0.38;
  m_radius = (drawHeight) * .6;
 
  dc->SetBrush(*wxTRANSPARENT_BRUSH);
 
  wxPen pen;
  pen.SetStyle(wxPENSTYLE_SOLID);
  pen.SetWidth(2);
  GetGlobalColor(_T("DASHF"), &cl);
  pen.SetColour(cl);
  dc->SetPen(pen);
 
  double angle1 = deg2rad(215);  // 305-ANGLE_OFFSET
  double angle2 = deg2rad(-35);  // 55-ANGLE_OFFSET
  wxCoord x1 = m_cx + (m_radius * cos(angle1));
  wxCoord y1 = m_cy + (m_radius * sin(angle1));
  wxCoord x2 = m_cx + (m_radius * cos(angle2));
  wxCoord y2 = m_cy + (m_radius * sin(angle2));
  dc->DrawArc(x1, y1, x2, y2, m_cx, m_cy);
  dc->DrawLine(x1, y1, x2, y2);
}
 
void DashboardInstrument_RudderAngle::DrawBackground(wxGCDC* dc) {
  wxCoord x = m_cx - (m_radius * 0.3);
  wxCoord y = m_cy - (m_radius * 1.1);
  wxColour cl;
  GetGlobalColor(_T("DASH1"), &cl);
  dc->SetBrush(cl);
  dc->DrawEllipticArc(x, y, m_radius * 0.6, m_radius * 1.4, 0, -180);
}