Retired Document
Important: This sample code may not represent best practices for current development. The project may use deprecated symbols and illustrate technologies and techniques that are no longer recommended.
CropImageController.m
// |
// CropImageController.m |
// Cropped Image |
// |
// Created by jcr on Wed Jul 17 2002. |
// Copyright (c) 2002 Apple Computer, Inc. All rights reserved. |
// |
#import "CropImageController.h" |
#import "CroppingImageView.h" |
@implementation CropImageController |
- (void) awakeFromNib |
{ |
// Sync up the image views with the controls in the window. |
[imageView takeSelectionColorFrom:colorWell]; |
[imageView takeSelectionMarkerStyleFrom:popUp]; |
[imageView takeAntiAliasModeFrom:antiAliasCheckbox]; |
[imageView takeContinuousModeFrom:continousModeCheckbox]; |
// Sign up to be told when the user changes the selection. |
[[NSNotificationCenter defaultCenter] |
addObserver:self |
selector:@selector(selectionChanged:) |
name: selectionChangedNotification |
object:imageView]; |
} |
- (IBAction)imageChanged:(id)sender |
{ |
[[sender cell] setHighlighted:NO]; // Without this, the NSImageView has a bad habit of coloring its background grey. |
[croppedImageView setImage:[imageView croppedImage]]; |
} |
- (void) selectionChanged:(NSNotification *) notification |
{ |
[croppedImageView setImage:[imageView croppedImage]]; |
[croppedImageView setNeedsDisplay:YES]; |
} |
- (IBAction) showTheApe:sender |
{ |
[imageView setImage:[NSImage imageNamed:@"mandrill"]]; |
[self imageChanged:nil]; |
} |
- (IBAction)saveCroppedImage:(id)sender |
{ |
[[NSSavePanel savePanel] |
beginSheetForDirectory:NSHomeDirectory() // seems like a reasonable place to start.. |
file:@"Tinted Image" // default filename |
modalForWindow:window //Run as a sheet, attached to "window" |
modalDelegate:self // The save panel should call me when it's done.. |
didEndSelector:@selector(savePanelDidEnd:returnCode:contextInfo:) // ... using this selector |
contextInfo:NULL]; |
} |
// User/Filesystem interactions. |
- (IBAction) openDocument: sender |
{ |
[[NSOpenPanel openPanel] // Get the shared open panel |
beginSheetForDirectory:NSHomeDirectory() // Point it at the user's home |
file:nil |
modalForWindow:window // This makes it show up as a sheet, attached to window |
modalDelegate:self // Tell me when you're done. |
didEndSelector:@selector(openPanelDidEnd:returnCode:contextInfo:) // Call this method when you're done.. |
contextInfo:NULL]; |
} |
- (void) openPanelDidEnd:(NSOpenPanel *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo |
{ |
[imageView setImage:[[[NSImage alloc] initWithContentsOfFile:[sheet filename]]autorelease]]; |
[self imageChanged:nil]; |
} |
- (IBAction)saveDocument:(id)sender |
{ |
[[NSSavePanel savePanel] |
beginSheetForDirectory:NSHomeDirectory() // seems like a reasonable place to start.. |
file:@"Cropped Image" // default filename |
modalForWindow:window //Run as a sheet, attached to "window" |
modalDelegate:self // The save panel should call me when it's done.. |
didEndSelector:@selector(savePanelDidEnd:returnCode:contextInfo:) // ... using this selector |
contextInfo:NULL]; |
} |
- (void)savePanelDidEnd:(NSSavePanel *)sheet returnCode:(int)returnCode contextInfo:(void *)contextInfo |
{ |
if (returnCode == NSOKButton) // The user hit "save", so... |
[[[imageView croppedImage] TIFFRepresentation] // Create the contents of a .tiff file |
writeToFile:[[sheet filename] stringByAppendingString: @".tiff"] // save it at the path we get from the panel. |
atomically:YES]; // That's about all there is to it.. |
} |
- (BOOL)applicationShouldTerminateAfterLastWindowClosed:(NSApplication *)theApplication { return YES; } |
@end |
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