Revision: 2522
http://skim-app.svn.sourceforge.net/skim-app/?rev=2522&view=rev
Author: hofman
Date: 2007-07-17 16:35:02 -0700 (Tue, 17 Jul 2007)
Log Message:
-----------
Override method to determine the document type from a file. If it's a type we
can't open, try to check for the file header, it might be PDF or PS with the
wrong extension.
Modified Paths:
--------------
trunk/SKDocumentController.m
Modified: trunk/SKDocumentController.m
===================================================================
--- trunk/SKDocumentController.m 2007-07-17 21:19:16 UTC (rev 2521)
+++ trunk/SKDocumentController.m 2007-07-17 23:35:02 UTC (rev 2522)
@@ -67,6 +67,39 @@
return type;
}
+- (NSString *)typeForContentsOfURL:(NSURL *)inAbsoluteURL error:(NSError
**)outError {
+ static NSData *pdfHeaderData = nil;
+ if (nil == pdfHeaderData) {
+ char *h = "%PDF-";
+ pdfHeaderData = [[NSData alloc] initWithBytes:h length:strlen(h)];
+ }
+ static NSData *psHeaderData = nil;
+ if (nil == psHeaderData) {
+ char *h = "%PS-";
+ psHeaderData = [[NSData alloc] initWithBytes:h length:strlen(h)];
+ }
+
+ NSError *error = nil;
+ NSString *type = [super typeForContentsOfURL:inAbsoluteURL error:&error];
+
+ if (type == nil || [type isEqualToString:SKNotesRTFDocumentType] || [type
isEqualToString:SKNotesTextDocumentType]) {
+ if ([inAbsoluteURL isFileURL]) {
+ NSString *fileName = [inAbsoluteURL path];
+ NSFileHandle *fh = [NSFileHandle
fileHandleForReadingAtPath:fileName];
+ NSData *leadingData = [fh readDataOfLength:5];
+ if ([leadingData length] >= [pdfHeaderData length] &&
[pdfHeaderData isEqual:[leadingData subdataWithRange:NSMakeRange(0,
[pdfHeaderData length])]]) {
+ type = SKPDFDocumentType;
+ } else if ([leadingData length] >= [psHeaderData length] &&
[psHeaderData isEqual:[leadingData subdataWithRange:NSMakeRange(0,
[psHeaderData length])]]) {
+ type = SKPostScriptDocumentType;
+ }
+ }
+ if (type == nil && outError)
+ *outError = error;
+ }
+
+ return type;
+}
+
static NSData *convertTIFFDataToPDF(NSData *tiffData)
{
// this should accept any image data types we're likely to run across, but
PICT returns a zero size image
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