//Checks the element names of the page layout
//returns boolean true if duplicates exist
public static Boolean checkLayoutTextElementsForDuplicates(IMxDocument pMxDoc, string pFrameName)
{
//create list to store name of text elements
List <string> lst = new List <string>();
Boolean duplicates;
//check if the frame passed exists in the map document
if (PageLayoutProperties.detectMapFrame(pMxDoc, pFrameName))
{
//Declare variables
IPageLayout pLayout = pMxDoc.PageLayout;
IGraphicsContainer pGraphics = pLayout as IGraphicsContainer;
pGraphics.Reset();
IElement element = new TextElementClass();
IElementProperties2 pElementProp;
ITextElement pTextElement;
//loop through the text elements in the frame
try
{
element = (IElement)pGraphics.Next();
while (element != null)
{
if (element is ITextElement)
{
pTextElement = element as ITextElement;
pElementProp = element as IElementProperties2;
//where the name is not blank
//System.Diagnostics.Debug.WriteLine(pElementProp.Name);
if (pElementProp.Name != "")
{
//store the name of the elements and the values in the dictionary as pairs
lst.Add(pElementProp.Name);
}
}
element = pGraphics.Next() as IElement;
}
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("Error detecting duplicate elements from the map frame");
System.Diagnostics.Debug.WriteLine(e);
}
}
//Find if duplicates exist
int duplicateCount = lst.Count() - lst.Distinct().Count();
if (duplicateCount != 0)
{
duplicates = true;
return(duplicates);
}
else
{
duplicates = false;
return(duplicates);
}
}
//Gets all the text elements and their values from a map frame.
//returns a dictionary with key value pairs of these element / values
public static Dictionary <string, string> getLayoutTextElements(IMxDocument pMxDoc, string pFrameName)
{
//create dictionary to story element values
Dictionary <string, string> dict = new Dictionary <string, string>();
//check if the frame passed exists in the map document
if (PageLayoutProperties.detectMapFrame(pMxDoc, pFrameName))
{
//Declare variables
IPageLayout pLayout = pMxDoc.PageLayout;
IGraphicsContainer pGraphics = pLayout as IGraphicsContainer;
pGraphics.Reset();
IElement element = new TextElementClass();
IElementProperties2 pElementProp;
ITextElement pTextElement;
//loop through the text elements in the frame
try
{
element = (IElement)pGraphics.Next();
while (element != null)
{
if (element is ITextElement)
{
pTextElement = element as ITextElement;
pElementProp = element as IElementProperties2;
//where the name is not blank
//System.Diagnostics.Debug.WriteLine(pElementProp.Name);
if (pElementProp.Name != "")
{
//store the name of the elements and the values in the dictionary as pairs
dict.Add(pElementProp.Name, pTextElement.Text);
}
}
element = pGraphics.Next() as IElement;
}
//return the dictionary
return(dict);
}
catch (Exception e)
{
System.Diagnostics.Debug.WriteLine("Error getting elements from the map frame");
System.Diagnostics.Debug.WriteLine(e);
return(null);
}
}
else
{
return(null);
}
}
// Exports a given page layout or map frame to a variety of image formats, returns the image file path
public static string exportImage(IMxDocument pMxDoc, string exportType, string dpi, string pathDocumentName, string mapFrameName)
{
// Define the activeView as either the page layout or the map frame
// If the mapFrameName variable is null then the activeView is the page, otherwise it is set to the map frame name specified
IMap pMap;
IActiveView pActiveView = null;
IMaps pMaps = pMxDoc.Maps;
// Also construct output filename depending on the activeView / mapFrame input
string pathFileName = string.Empty;
if (mapFrameName == null)
{
pActiveView = pMxDoc.ActiveView;
pathFileName = @pathDocumentName + "-" + dpi.ToString() + "dpi." + exportType;
}
else if (mapFrameName != null && PageLayoutProperties.detectMapFrame(pMxDoc, mapFrameName))
{
for (int i = 0; i <= pMaps.Count - 1; i++)
{
pMap = pMaps.get_Item(i);
if (pMap.Name == mapFrameName)
{
pActiveView = pMap as IActiveView;
}
}
pathFileName = @pathDocumentName + "-mapframe-" + dpi.ToString() + "dpi." + exportType;
}
else
{
return(null);
}
//Declare the export variable and set the file and path from the parameters
IExport docExport;
//parameter check
if (pActiveView == null)
{
return(null);
}
// The Export*Class() type initializes a new export class of the desired type.
if (exportType == "pdf")
{
docExport = new ExportPDFClass();
}
else if (exportType == "eps")
{
docExport = new ExportPSClass();
}
else if (exportType == "ai")
{
docExport = new ExportAIClass();
}
else if (exportType == "bmp")
{
docExport = new ExportBMPClass();
}
else if (exportType == "tiff")
{
docExport = new ExportTIFFClass();
}
else if (exportType == "svg")
{
docExport = new ExportSVGClass();
}
else if (exportType == "png")
{
docExport = new ExportPNGClass();
}
else if (exportType == "gif")
{
docExport = new ExportGIFClass();
}
else if (exportType == "emf")
{
docExport = new ExportEMFClass();
}
else if (exportType == "jpeg")
{
IExportJPEG m_export;
docExport = new ExportJPEGClass();
if (docExport is IExportJPEG)
{
m_export = (IExportJPEG)docExport;
m_export.ProgressiveMode = false; //hardcoded progressive mode value here
m_export.Quality = 80; //hardcoded quality value here
docExport = (IExport)m_export;
}
}
else
{
return(pathFileName);
}
docExport.ExportFileName = pathFileName;
// Because we are exporting to a resolution that differs from screen
// resolution, we should assign the two values to variables for use
// in our sizing calculations
System.Int32 screenResolution = 96;
System.Int32 outputResolution = Convert.ToInt32(dpi);
docExport.Resolution = outputResolution;
// If input type is map frame calculate the export rectangle
tagRECT exportRECT; // This is a structure
exportRECT.left = 0;
exportRECT.top = 0;
exportRECT.right = pActiveView.ExportFrame.right * (outputResolution / screenResolution);
exportRECT.bottom = pActiveView.ExportFrame.bottom * (outputResolution / screenResolution);
// Set up the PixelBounds envelope to match the exportRECT
IEnvelope envelope = new EnvelopeClass();
envelope.PutCoords(exportRECT.left, exportRECT.top, exportRECT.right, exportRECT.bottom);
docExport.PixelBounds = envelope;
try
{
System.Int32 hDC = docExport.StartExporting();
pActiveView.Output(hDC, (System.Int16)docExport.Resolution, ref exportRECT, null, null); // Explicit Cast and 'ref' keyword needed
docExport.FinishExporting();
docExport.Cleanup();
}
catch (Exception e)
{
Debug.WriteLine("Error writing to file, probably a file permissions error. Check the exception message below for details.");
Debug.WriteLine(e.Message);
}
//Return the path of the file
return(pathFileName);
}