/// <summary>
/// Helper class constructor
/// </summary>
/// <param name="filePath">Path of the DXF file</param>
/// <param name="fChart">Flowchart object reference</param>
/// <param name="ExportTextAsMultiline">ExportTextAsMultiline property value</param>
/// <param name="ExportExternalImages">ExportExternalImages property value</param>
/// <param name="NamePattern">Image files name pattern</param>
/// <param name="ImagePath">Path for image files saving</param>
public DxfHelper( string filePath, FlowChart fChart, bool ExportTextAsMultiline, bool ExportExternalImages,
string NamePattern, string ImagePath)
{
try
{
// Preparing for writing DXF file
m_filePath = filePath;
m_StreamWriter = new StreamWriter(filePath, false , Encoding.ASCII);
if ( m_StreamWriter == null)
throw new Exception("Can't open DXF file");
m_ExportTextAsMultiline = ExportTextAsMultiline;
m_ExportExternalImages = ExportExternalImages;
provider = new UnitFormatter( m_UnitScale, ".");
m_FlowChart = fChart;
FileNamePattern = NamePattern;
BasedPath = ImagePath;
doc = new XmlDocument();
if ( doc == null )
throw new Exception("Can't create XML repository");
// Getting temporarily XML storage from resource
try
{
StreamReader sr = new StreamReader(Assembly.GetExecutingAssembly().
GetManifestResourceStream("MindFusion.Diagramming.Export.DxfExporter.xml"),Encoding.ASCII);
if ( sr == null )
throw new Exception("Can't open stream");
string XmlContent = sr.ReadToEnd();
if (XmlContent == "")
throw new Exception("Can't read content");
doc.LoadXml(XmlContent);
}
catch (Exception)
{
throw new Exception("Error loading XML template from resource");
}
// Hashing some temporarily XML nodes for future use
nodeRoot = doc.DocumentElement;
if ( nodeRoot == null )
throw new Exception("Can't create nodeRoot");
HashNode("header", ref nodeHeader);
HashNode("tables", ref nodeTables);
HashNode("tables/ltypes", ref nodeLtypes);
HashNode("tables/style", ref nodeStyle);
HashNode("tables/layer", ref nodeLayers);
HashNode("blocks", ref nodeBlocks);
HashNode("entities", ref nodeEntities);
HashNode("objects", ref nodeObjects);
// Setting background group
XmlNode node = nodeEntities.AppendChild(doc.CreateNode(XmlNodeType.Element,BACKGROUND_LAYER, ""));
if ( node != null )
node.InnerText = String.Format(provider, " 0\nSOLID\n 100\nAcDbEntity\n 5\n{10:X3}\n 8\n{9}\n 62\n{8:ACI}\n 100\nAcDbTrace\n 10\n{0:U}\n 20\n{1:U}\n 11\n{2:U}\n 21\n{3:U}\n 12\n{4:U}\n 22\n{5:U}\n 13\n{6:U}\n 23\n{7:U}\n",
0, 0,
m_FlowChart.DocExtents.Width, 0,
0, m_FlowChart.DocExtents.Height,
m_FlowChart.DocExtents.Width ,m_FlowChart.DocExtents.Height,
m_FlowChart.BackColor,
BACKGROUND_LAYER,
99);
// Indicates that object was initialized successfully
m_valid = true;
}
catch ( Exception ex )
{
m_valid = false;
m_status = ex.Message;
Trace.WriteLine(String.Format("{0} error {1}\n","DxfHelper.Construct",ex.Message));
}
}
