// // CMImageView.m // sequel-pro // // Created by lorenz textor (lorenz@textor.ch) on Sat Sep 06 2003. // Copyright (c) 2002-2003 Lorenz Textor. All rights reserved. // // This program is free software; you can redistribute it and/or modify // it under the terms of the GNU General Public License as published by // the Free Software Foundation; either version 2 of the License, or // (at your option) any later version. // // This program is distributed in the hope that it will be useful, // but WITHOUT ANY WARRANTY; without even the implied warranty of // MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the // GNU General Public License for more details. // // You should have received a copy of the GNU General Public License // along with this program; if not, write to the Free Software // Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA // // More info at <http://code.google.com/p/sequel-pro/> // Or mail to <lorenz@textor.ch> #import "CMImageView.h" @implementation CMImageView /* * On a drag and drop, read in dragged files and convert dragged images before passing * them to the delegate for further processing */ - (BOOL)performDragOperation:(id <NSDraggingInfo>)sender { id delegateForUse = nil; // If the delegate or the delegate's content instance doesn't implement processUpdatedImageData:, // return the super's implementation if (delegate) { if ([delegate respondsToSelector:@selector(processUpdatedImageData:)]) { delegateForUse = delegate; } else if ( [delegate valueForKey:@"tableContentInstance"] && [[delegate valueForKey:@"tableContentInstance"] respondsToSelector:@selector(processUpdatedImageData:)] ) { delegateForUse = [delegate valueForKey:@"tableContentInstance"]; } } if (!delegateForUse) { return [super performDragOperation:sender]; } // If a filename is available, attempt to read it and pass it to the delegate if ([[[sender draggingPasteboard] propertyListForType:@"NSFilenamesPboardType"] count]) { [delegateForUse processUpdatedImageData:[NSData dataWithContentsOfFile:[[[sender draggingPasteboard] propertyListForType:@"NSFilenamesPboardType"] objectAtIndex:0]]]; return [super performDragOperation:sender]; } // Otherwise, see if a dragged image is available via file contents or TIFF and pass to delegate if ([[sender draggingPasteboard] dataForType:@"NSFileContentsPboardType"]) { [delegateForUse processUpdatedImageData:[[sender draggingPasteboard] dataForType:@"NSFileContentsPboardType"]]; return [super performDragOperation:sender]; } // For dragged image representations (in TIFF format), convert to PNG data for compatibility if ([[sender draggingPasteboard] dataForType:@"NSTIFFPboardType"]) { NSData *pngData = nil; NSBitmapImageRep *draggedImage = [[NSBitmapImageRep alloc] initWithData:[[sender draggingPasteboard] dataForType:@"NSTIFFPboardType"]]; if (draggedImage) { pngData = [draggedImage representationUsingType:NSPNGFileType properties:nil]; [draggedImage release]; } if (pngData) { [delegateForUse processUpdatedImageData:pngData]; return [super performDragOperation:sender]; } } // For dragged image representations (in PICT format), convert to PNG data for compatibility if ([[sender draggingPasteboard] dataForType:@"NSPICTPboardType"]) { NSData *pngData = nil; NSPICTImageRep *draggedImage = [[NSPICTImageRep alloc] initWithData:[[sender draggingPasteboard] dataForType:@"NSPICTPboardType"]]; if (draggedImage) { NSImage *convertImage = [[NSImage alloc] initWithSize:[draggedImage size]]; [convertImage lockFocus]; [draggedImage drawInRect:[draggedImage boundingBox]]; NSBitmapImageRep *bitmapImageRep = [[NSBitmapImageRep alloc] initWithFocusedViewRect:[draggedImage boundingBox]]; if (bitmapImageRep) { pngData = [bitmapImageRep representationUsingType:NSPNGFileType properties:nil]; [bitmapImageRep release]; } [convertImage unlockFocus]; [convertImage release]; [draggedImage release]; } if (pngData) { [delegateForUse processUpdatedImageData:pngData]; return [super performDragOperation:sender]; } } // The image was not processed - return failure and clear image representation. [delegateForUse processUpdatedImageData:nil]; [self setImage:nil]; return NO; } @end