/*

     File: APLAppDelegate.m

 Abstract: Application delegate object that implements all the required printing functionality.

  Version: 2.0

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 */

#import "APLAppDelegate.h"

#import <ApplicationServices/ApplicationServices.h>

@interface APLAppDelegate ()

@property (strong) IBOutlet NSWindow *window;

@property (weak) IBOutlet NSMatrix *radioMatrix;

@property (nonatomic) NSPrintInfo *printInfo;

@end

@implementation APLAppDelegate

- (NSPrintInfo *)printInfo {

    if (_printInfo == nil) {

        _printInfo = [[NSPrintInfo alloc] init];

    }

    return _printInfo;

}

- (IBAction)print:(id)sender {

    NSPrintPanel *printPanel = [NSPrintPanel printPanel];

    /*

     Add the Show Paper Size option to default options for the print dialog.

     */

    NSPrintPanelOptions options = [printPanel options] | NSPrintPanelShowsPaperSize;

    [printPanel setOptions:options];

    [printPanel beginSheetWithPrintInfo:self.printInfo modalForWindow:self.window delegate:self didEndSelector:@selector(printPanelDidEnd:returnCode:contextInfo:) contextInfo:NULL];

}

- (void)printPanelDidEnd:(NSPrintPanel *)printPanel returnCode:(NSInteger)returnCode contextInfo:(void *)contextInfo {

    if (returnCode != NSOKButton) {

        return;

    }

    /*

     Set the file and corresponding MIME type based on radio selection.

     This sample supports PostScript and JPEG files; these are just two of a number of MIME types, for example:

     –application/postscript // We insert the PS for the PMPrintSettings into the PostScript stream.

     –application/vnd.cups-postscript // Raw postscript/finished postscript.  We don't insert anything

     –application/pdf // PDF document

     –image/gif, image/jpeg, image/tiff // Images

     –text/plain, text/rtf, text/html // Text

     –application/vnd.cups-raw //Raw printer commands and escape codes, mainly for the printer venders

     –and more...

     */

    CFURLRef fileURL = NULL;

    CFStringRef mimeType = NULL;

    NSBundle *mainBundle = [NSBundle mainBundle];

    // Obtain the print settings from the printInfo.

    PMPrintSettings printSettings = [self.printInfo PMPrintSettings];

    if ([self.radioMatrix selectedRow] == 0) {

        // Selected the PostScript file.

        fileURL = (__bridge CFURLRef)[mainBundle URLForResource:@"testps" withExtension:@"ps"];

        mimeType = CFSTR("application/postscript");

    }

    else {

        /*

         Selected the JPEG file.

         For image files, tell the printing system to fit the image to the page.

         */

        PMPrintSettingsSetValue(printSettings, kPMFitToPageKey, CFSTR("true"), false);

        fileURL = (__bridge CFURLRef)[mainBundle URLForResource:@"testImage" withExtension:@"jpg"];

        mimeType = CFSTR("image/jpeg");

    }

    // Obtain the print session from the printInfo.

    PMPrintSession printSession = [self.printInfo PMPrintSession];

    PMDestinationType printDestination = 0;

    OSStatus status = noErr;

    // Verify that the destination is the printer.

    status = PMSessionGetDestinationType(printSession, printSettings, &printDestination);

    if ((status != noErr) || (printDestination != kPMDestinationPrinter)) {

        NSLog(@"Either got an error from PMSessionGetDestinationType or the print destination wasn't kPMDestinationPrinter");

        return;

    }

    // The destination printer is needed by PMPrinterPrintWithFile and related functions.

    PMPrinter currentPrinter = NULL;

    status = PMSessionGetCurrentPrinter(printSession, &currentPrinter);

    if (status != noErr) {

        NSLog(@"Got an error from PMSessionGetCurrentPrinter (%d)", status);

        return;

    }

    /*

     One reason PMPrinterPrintWithFile may fail is if the specified printer can not handle the file's mime type. Use PMPrinterGetMimeTypes() to check whether a mime type is supported.

     */

    CFArrayRef mimeTypes;

    status = PMPrinterGetMimeTypes(currentPrinter, printSettings, &mimeTypes);

    if (status == noErr && mimeTypes != NULL) {

        CFIndex arrayCount = CFArrayGetCount(mimeTypes);

        if (CFArrayContainsValue(mimeTypes, CFRangeMake(0, arrayCount), mimeType)) {

            // Obtain the page format from the printInfo.

            PMPageFormat pageFormat =  [self.printInfo PMPageFormat];

            status = PMPrinterPrintWithFile(currentPrinter, printSettings, pageFormat, mimeType, fileURL);

            if (status != noErr) {

                NSLog(@"PMPrinterPrintWithFile returned error %d", status);

            }

        }

        else {

            NSLog(@"MIME type %@ isn't supported by the printer", (__bridge NSString *)mimeType);

        }

    }

}

@end