private static readonly int DefaultPrecision = 3; //default precision
#endregion Fields
#region Methods
/// <summary>
/// convert CityInfo into CityInfoString
/// </summary>
/// <param name="cityInfo">CityInfo need to convert</param>
/// <returns>conversion result</returns>
public static CityInfoString ConvertFrom(CityInfo cityInfo)
{
CityInfoString cityInfoString = new CityInfoString();
cityInfoString.Latitude = DoubleToString(cityInfo.Latitude, ValueType.Angle);
cityInfoString.Longitude = DoubleToString(cityInfo.Longitude, ValueType.Angle);
return cityInfoString;
}
private SiteLocation m_siteLocation; //reference to SiteLocation
#endregion Fields
#region Constructors
/// <summary>
/// override constructor
/// </summary>
/// <param name="data">a instance of CoordinateSystemData class</param>
public CoordinateSystemDataForm(CoordinateSystemData data, CitySet citySet, SiteLocation siteLocation)
{
m_data = data;
m_currentName = null;
//create new members about place information
m_placeInfo = new PlaceInfo(citySet);
m_siteLocation = siteLocation;
m_currentCityInfo = new CityInfo();
InitializeComponent();
}
/// <summary>
/// try to get city name according to CityInfo
/// </summary>
/// <param name="cityInfo">store information about city</param>
/// <param name="cityName">city's name</param>
/// <param name="timeZone">city's timezone</param>
/// <returns>figure out whether this function successful</returns>
public bool TryGetCityNameTimeZone(CityInfo cityInfo, out string cityName, out double timeZone)
{
cityName = null;
timeZone = m_invalidTimeZone;
//loop to find cityinfo matched
foreach (CityInfo temp in m_citiesInfo)
{
//compare Latitude and longitude,and if difference < Diff
// the two CityInfo are equal
if (Math.Abs(temp.Latitude - cityInfo.Latitude) < Diff &&
Math.Abs(temp.Longitude - cityInfo.Longitude) < Diff)
{
cityName = temp.CityName;
timeZone = temp.TimeZone;
return true;
}
}
return false;
}
/// <summary>
/// try to get city info according to city name
/// </summary>
/// <param name="cityName">city name</param>
/// <param name="cityInfo">city's information</param>
/// <returns>figure out whether this function successful</returns>
public bool TryGetCityInfo(string cityName, out CityInfo cityInfo)
{
//compare cityName with element's CityName of m_citiesInfo
//if they are equal, that element is matched
foreach (CityInfo temp in m_citiesInfo)
{
if (cityName == temp.CityName)
{
cityInfo = temp;
return true;
}
}
cityInfo = new CityInfo();
return false;
}
/// <summary>
/// Add a city info to city info List
/// </summary>
/// <param name="cityInfo">the city info need to add</param>
public void AddCityInfo(CityInfo cityInfo)
{
if(m_citiesInfo.Contains(cityInfo))
{
return;
}
m_citiesInfo.Add(cityInfo);
}
/// <summary>
/// convert CityInfoString into CityInfo
/// </summary>
/// <param name="cityInfoString">CityInfoString need to convert</param>
/// <returns>conversion result</returns>
public static CityInfo ConvertTo(CityInfoString cityInfoString)
{
CityInfo cityInfo = new CityInfo();
double temp;
//convert Latitude
if (StringToDouble(cityInfoString.Latitude, ValueType.Angle, out temp))
{
cityInfo.Latitude = temp;
}
else
{
cityInfo.Latitude = Double.NaN;
}
//convert Longitude
if (StringToDouble(cityInfoString.Longitude, ValueType.Angle, out temp))
{
cityInfo.Longitude = temp;
}
else
{
cityInfo.Longitude = Double.NaN;
}
return cityInfo;
}
/// <summary>
/// used when city name changed
/// </summary>
/// <param name="cityName">city name which changed</param>
/// <param name="cityInfoString">city information want to get according to city name</param>
/// <returns>check whether is successful</returns>
private bool GetCityInfo(string cityName, out CityInfoString cityInfoString)
{
CityInfo cityInfo = new CityInfo();
//try to get CityInfo according to cityName
if (m_placeInfo.TryGetCityInfo(cityName, out cityInfo))
{
//do conversion from CityInfo to CityInfoString
cityInfoString = UnitConversion.ConvertFrom(cityInfo);
//do TimeZone conversion from double to string
cityInfoString.TimeZone = m_placeInfo.TryGetTimeZoneString(cityInfo.TimeZone);
//set current CityInfo
m_currentCityInfo = cityInfo;
m_currentCityInfo.CityName = cityName;
return true;
}
//if failed, also set current CityInfo
m_currentCityInfo.CityName = null;
cityInfoString = new CityInfoString();
return false;
}
/// <summary>
/// display the location information on the form
/// </summary>
private void DisplayInformation()
{
//initialize the listbox
locationListBox.Items.Clear();
foreach (string itemName in m_data.LocationNames)
{
if (itemName == m_data.LocationName)
{
m_currentName = itemName + " (current)"; //indicate the current project location
locationListBox.Items.Add(m_currentName);
}
else
{
locationListBox.Items.Add(itemName);
}
}
//set the selected item to current location
for (int i = 0; i < locationListBox.Items.Count; i++)
{
string itemName = null;
itemName = locationListBox.Items[i].ToString();
if (itemName.Contains("(current)"))
{
locationListBox.SelectedIndex = i;
}
}
//get the offset values of the selected item
string selecteName = locationListBox.SelectedItem.ToString();
m_data.GetOffset(selecteName);
this.ShowOffsetValue();
//set control in placeTabPage
//convert values get from API and set them to controls
CityInfo cityInfo = new CityInfo(m_siteLocation.Latitude, m_siteLocation.Longitude);
CityInfoString cityInfoString = UnitConversion.ConvertFrom(cityInfo);
//set Text of Latitude and Longitude TextBox
latitudeTextBox.Text = cityInfoString.Latitude;
longitudeTextBox.Text = cityInfoString.Longitude;
//set DataSource of CitiesName ComboBox and TimeZones ComboBox
cityNameComboBox.DataSource = m_placeInfo.CitiesName;
timeZoneComboBox.DataSource = m_placeInfo.TimeZones;
//try use Method DoTextBoxChanged to Set CitiesName ComboBox
DoTextBoxChanged();
m_isFormLoading = false;
//get timezone from double value and set control
string timeZoneString = m_placeInfo.TryGetTimeZoneString(m_siteLocation.TimeZone);
//set selectItem of TimeZones ComboBox
timeZoneComboBox.SelectedItem = timeZoneString;
timeZoneComboBox.Enabled = false;
}