在NSPrintInfo中设置文件名

Question

我正在尝试设置打印对话框,以便在用户尝试保存为PDF时,它会获得合理的文件名.

我目前有:

NSPrintInfo* pi = [NSPrintInfo sharedPrintInfo];
NSMutableDictionary *dict = [pi dictionary];
[dict setObject: name forKey: NSPrintSavePath];
[dict setObject: name forKey: @"NSPrintSavePath"];
NSPrintOperation *op = [pdfDoc getPrintOperationForPrintInfo:pi
                                   autoRotate:YES];
[op runOperation];

字典中的NSPrintSave字段是正确的,但文本框不断提出".pdf.pdf"

关于它来自哪里的任何想法？

补充信息:

当我打印出我的NSPrintInfo对象时,我得到:

print info {
   NSBottomMargin = 90;
   NSCopies = 1;
   NSDetailedErrorReporting = 0;
   NSFaxNumber = "";
   NSFirstPage = 1;
   NSHorizonalPagination = 2;
   NSHorizontallyCentered = 1;
   NSJobDisposition = NSPrintSpoolJob;
   NSJobSavingFileNameExtensionHidden = 0;
   NSJobSavingURL = bob -- /;
   NSLastPage = 2147483647;
   NSLeftMargin = 72;
   NSMustCollate = 1;
   NSOrientation = 0;
   NSPagesAcross = 1;
   NSPagesDown = 1;
   NSPaperName = "na-letter";
   NSPaperSize = NSSize: {612, 792};
   NSPrintAllPages = 1;
   NSPrintProtected = 0;
   NSPrintSavePath = bob;
   NSPrintTime = 0001-12-31 19:00:00 -0500;
   NSPrinter = {
       "Device Description" =     {
            NSDeviceIsPrinter = YES;
            };
       "Language Level" = 2;
       Name = "Xerox WorkCentre PE120 Series (XRX0000aa9915f0)";
       Type = "Generic PostScript Printer";
   };
   NSPrinterName = "Xerox WorkCentre PE120 Series (XRX0000aa9915f0)";
   NSRightMargin = 72;
   NSSavePath = bob;
   NSScalingFactor = 1;
   NSTopMargin = 90;
   NSVerticalPagination = 0;
   NSVerticallyCentered = 1;
}

我认为这意味着打印到的默认文件名将是"bob"或"bob.pdf",但它仍然是".pdf.pdf"......

Answer 1

看来,答案是完全忽略NSPrintInfo,并查看NSPrintOperation.显然,NSPrintOperation有一个setJobTitle方法,它只做了正确的事情(tm).

现在,为什么我的谷歌搜索都没有找到这个(所有这些导致我上面尝试的东西)我真的不知道......