/// <summary>
/// Adds a new coordinate system to the database
/// </summary>
/// <param name="cs"></param>
public void AddProjection(CoordinateSystemDefinition cs)
{
using (var conn = CreateSqliteConnection())
{
conn.Open();
using (IInsert cmd = (IInsert)conn.CreateCommand(OSGeo.FDO.Commands.CommandType.CommandType_Insert))
{
cmd.SetFeatureClassName("Projections");
cmd.PropertyValues.Add(new OSGeo.FDO.Commands.PropertyValue("Name", new StringValue(cs.Name)));
cmd.PropertyValues.Add(new OSGeo.FDO.Commands.PropertyValue("Description", new StringValue(cs.Description)));
cmd.PropertyValues.Add(new OSGeo.FDO.Commands.PropertyValue("WKT", new StringValue(cs.Wkt)));
int affected = 0;
using(var reader = cmd.Execute())
{
while(reader.ReadNext())
{
affected++;
}
reader.Close();
}
if (affected == 1)
{
_Projections.Add(cs);
LoggingService.InfoFormatted("Coordinate System {0} added to database", cs.Name);
}
}
conn.Close();
}
}
public static bool EditCoordinateSystem(CoordinateSystemDefinition cs)
{
CoordinateSystemDialog diag = new CoordinateSystemDialog();
_editing = true;
diag.txtName.Text = cs.Name;
diag.txtName.Enabled = false;
diag.txtDescription.Text = cs.Description;
diag.txtWKT.Text = cs.Wkt;
if (diag.ShowDialog() == DialogResult.OK)
{
cs.Name = diag.txtName.Text;
cs.Description = diag.txtDescription.Text;
cs.Wkt = diag.txtWKT.Text;
return true;
}
return false;
}
public void SetCoordinateSystem(CoordinateSystemDefinition cs)
{
if (cs != null)
{
if (_view.NameEnabled)
_view.ContextName = cs.Name;
_view.Description = cs.Description;
_view.CoordinateSystem = cs.Wkt;
_view.CoordinateSystemWkt = cs.Wkt;
}
}
/// <summary>
/// Deletes a coordinate system from the database
/// </summary>
/// <param name="cs"></param>
/// <returns></returns>
public bool DeleteProjection(CoordinateSystemDefinition cs)
{
using (var conn = CreateSqliteConnection())
{
conn.Open();
using (IDelete delete = (IDelete)conn.CreateCommand(OSGeo.FDO.Commands.CommandType.CommandType_Delete))
{
delete.SetFeatureClassName("Projections");
delete.SetFilter("Name = '" + cs.Name + "'");
if (delete.Execute() == 1)
{
LoggingService.InfoFormatted("Coordinate System {0} deleted from database", cs.Name);
_Projections.Remove(cs);
return true;
}
}
conn.Close();
}
return false;
}
/// <summary>
/// Updates an existing coordinate system in the database
/// </summary>
/// <param name="cs"></param>
/// <param name="oldName"></param>
/// <returns></returns>
public bool UpdateProjection(CoordinateSystemDefinition cs, string oldName)
{
using (var conn = CreateSqliteConnection())
{
conn.Open();
using(IUpdate update = (IUpdate)conn.CreateCommand(OSGeo.FDO.Commands.CommandType.CommandType_Update))
{
update.SetFeatureClassName("Projections");
update.PropertyValues.Add(new OSGeo.FDO.Commands.PropertyValue("Name", new StringValue(cs.Name)));
update.PropertyValues.Add(new OSGeo.FDO.Commands.PropertyValue("Description", new StringValue(cs.Description)));
update.PropertyValues.Add(new OSGeo.FDO.Commands.PropertyValue("WKT", new StringValue(cs.Wkt)));
update.SetFilter("Name = '" + oldName + "'");
if (update.Execute() == 1)
{
LoggingService.InfoFormatted("Coordinate System {0} updated in database", oldName);
return true;
}
}
conn.Close();
}
return false;
}
public void Delete(CoordinateSystemDefinition cs)
{
_catalog.DeleteProjection(cs);
}
public void Update(string oldName, CoordinateSystemDefinition cs)
{
_catalog.UpdateProjection(cs, oldName);
}
public void AddNew(CoordinateSystemDefinition cs)
{
_catalog.AddProjection(cs);
}
