Various export enhancements and fixes, including:

- A new SPExportFile class, providing an abstract interface to the handling and creation of export files.
- Enables the centralisation of all file/file handle creation logic as well as better support for handling situations where files fail to be created, including files that already exist at the export location.
- New SPExportFileHandleStatus constants to support the reporting of file handle creation.
- Update SPExporter to use the new file class instead of directly using an instance of SPFileHandle.
- Add the necessary logic to deal with files that already exist on disk, by providing the user with 3 options: cancel the export, ignore the files in question or overwrite them. We might want to enhance this to make new files sequential in name to prevent overwriting. Fixes issue #742.
- New SPExportFileUtilities category, which centralises all the logic relating to writing export type headers as well as dealing with problems occurred during file/file handle creation.
- Improve feedback given on the export progress sheet during export initialisation.
- Tidy up and improve comments.

1 files changed, 3 insertions, 10 deletions

diff --git a/Source/SPPDFExporter.h b/Source/SPPDFExporter.h
index 9071084f..2d00e8c1 100644
--- a/Source/SPPDFExporter.h
+++ b/Source/SPPDFExporter.h
@@ -35,21 +35,14 @@
  */
 @interface SPPDFExporter : SPExporter 
 {
-	/**
-	 * Exporter delegate
-	 */
 	NSObject <SPPDFExporterProtocol> *delegate;
 }
 
-@property(readwrite, assign) NSObject *delegate;
-
 /**
- * Initialise an instance of SPPDFExporter using the supplied delegate.
- *
- * @param exportDelegate The exporter delegate
- *
- * @return The initialised instance
+ * @property delegate Exporter delegate
  */
+@property(readwrite, assign) NSObject *delegate;
+
 - (id)initWithDelegate:(NSObject *)exportDelegate;
 
 @end