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Diffstat (limited to 'Source/SPImageView.m')
| -rw-r--r-- | Source/SPImageView.m | 126 |
1 files changed, 126 insertions, 0 deletions
diff --git a/Source/SPImageView.m b/Source/SPImageView.m new file mode 100644 index 00000000..08f39980 --- /dev/null +++ b/Source/SPImageView.m @@ -0,0 +1,126 @@ +// +// $Id$ +// +// SPImageView.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/> + +#import "SPImageView.h" + +@implementation SPImageView + +/* + * 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; +} + +- (void)paste:(id)sender +{ + // [super paste: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) + [delegateForUse processPasteImageData]; +} + +@end |