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<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN"
"http://www.w3.org/TR/1999/REC-html401-19991224/loose.dtd">
<html>
<head>
<!-- BEGIN META TAG INFO -->
<meta http-equiv="content-type" content="text/html; charset=UTF-8">
<link rel="home" href="http://developer.apple.com/">
<link rel="find" href="http://developer.apple.com/search/">
<link rel="stylesheet" type="text/css" href="../../documentation/css/adcstyle.css" title="fonts">
<script language="JavaScript" src="../../documentation/js/adc.js" type="text/javascript"></script>
<!-- END META TAG INFO -->
<!-- BEGIN TITLE -->
<title>Transformed Image - /TransformedImageController.m</title>
<!-- END TITLE -->
<script language="JavaScript">
function JumpToNewPage() {
window.location=document.scpopupmenu.gotop.value;
return true;
}
</script>
</head>
<!-- BEGIN BODY OPEN -->
<body>
<!--END BODY OPEN -->
<!-- START CENTER OPEN -->
<center>
<!-- END CENTER OPEN -->
<!-- BEGIN LOGO AND SEARCH -->
<!--#include virtual="/includes/adcnavbar"-->
<!-- END LOGO AND SEARCH -->
<!-- START BREADCRUMB -->
<div id="breadcrumb">
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr>
<td scope="row"><img width="340" height="10" src="images/1dot.gif" alt=""></td>
<td><img width="340" height="10" src="images/1dot.gif" alt=""></td>
</tr>
<tr valign="middle">
<td align="left" colspan="2">
<a href="http://developer.apple.com/">ADC Home</a> > <a href="../../referencelibrary/index.html">Reference Library</a> > <a href="../../samplecode/index.html">Sample Code</a> > <a href="../../samplecode/Cocoa/index.html">Cocoa</a> > <a href="../../samplecode/Cocoa/idxGraphicsImaging-date.html">Graphics & Imaging</a> > <A HREF="javascript:location.replace('index.html');">Transformed Image</A> >
</td>
</tr>
<tr>
<td colspan="2" scope="row"><img width="680" height="35" src="images/1dot.gif" alt=""></td>
</tr>
</table>
</div>
<!-- END BREADCRUMB -->
<!-- START MAIN CONTENT -->
<!-- START TITLE GRAPHIC AND INTRO-->
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr align="left" valign="top">
<td><h1><div id="pagehead">Transformed Image</div></h1></td>
</tr>
</table>
<!-- END TITLE GRAPHIC AND INTRO -->
<!-- START WIDE COLUMN -->
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr align="left" valign="top">
<td id="scdetails">
<h2>/TransformedImageController.m</h2>
<form name="scpopupmenu" onSubmit="return false;" method=post>
<p><strong>View Source Code:</strong>
<select name="gotop" onChange="JumpToNewPage();" style="width:340px"><option selected value="ingnore">Select File</option>
<option value="listing1.html">/main.m</option>
<option value="listing2.html">/NSAffineTransform_Shearing.h</option>
<option value="listing3.html">/NSAffineTransform_Shearing.m</option>
<option value="listing4.html">/NSImageGradients.h</option>
<option value="listing5.html">/NSImageGradients.m</option>
<option value="listing6.html">/NSViewExtensions.h</option>
<option value="listing7.html">/NSViewExtensions.m</option>
<option value="listing8.html">/TransformedImageController.h</option>
<option value="listing9.html">/TransformedImageController.m</option>
<option value="listing10.html">/TransformedImageView.h</option>
<option value="listing11.html">/TransformedImageView.m</option></select>
</p>
</form>
<p><strong><a href="Transformed_Image.zip">Download Sample</a></strong> (“Transformed_Image.zip”, 89.7K)<BR>
<strong><a href="Transformed_Image.dmg">Download Sample</a></strong> (“Transformed_Image.dmg”, 144.7K)</p>
<!--
<p><strong><a href="#">Download Sample</a></strong> (“filename.sit”, 500K)</p>
-->
</td>
</tr>
<tr>
<td scope="row"><img width="680" height="10" src="images/1dot.gif" alt=""><br>
<img height="1" width="680" src="images/1dot_919699.gif" alt=""><br>
<img width="680" height="20" src="images/1dot.gif" alt=""></td>
</tr>
<tr>
<td scope="row">
<!--googleon: index -->
<pre class="sourcecodebox">#import "TransformedImageController.h"
#import "TransformedImageView.h"
#import "NSImageGradients.h"
#import "NSAffineTransform_Shearing.h"
@implementation TransformedImageController
- (void) awakeFromNib
{
[self resetTransformations:nil];
}
- (IBAction) resetTransformations: sender
{
[imageView setTransform:[NSAffineTransform transform]];
scale = 1.0;
rotation = xShear = yShear = 0;
}
// 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 resetTransformations:nil];
}
- (IBAction)saveDocument:(id)sender
{
[[NSSavePanel savePanel]
beginSheetForDirectory:NSHomeDirectory() // seems like a reasonable place to start..
file:@"Transformed 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 transformedImage] TIFFRepresentation] // Create the contents of a .tiff file
writeToFile:[NSString stringWithFormat:@"%@.%@", [sheet filename], @"tiff"] // save it at the path we get from the panel.
atomically:YES]; // That's about all there is to it..
}
- (void) fixMatrix
{
NSAffineTransform
*transform = [NSAffineTransform transform]; // This comes to us set to the identity transform.
[transform rotateByDegrees:rotation]; // Bend it to our will!
[transform scaleBy:scale];
[transform shearXBy:xShear yBy:yShear];
[imageView setTransform: transform]; // And apply it to the image view.
}
// The actions..
- (IBAction) takeRotationFrom: sender { rotation = [sender floatValue]; [self fixMatrix];}
- (IBAction) takeScaleFrom: sender { scale = [sender floatValue]; [self fixMatrix]; }
- (IBAction) takeXShearFrom: sender { xShear = [sender floatValue]; [self fixMatrix]; }
- (IBAction) takeYShearFrom: sender { yShear = [sender floatValue];[self fixMatrix]; }
- (IBAction) resetShear: sender { xShear = yShear = 0.0; [self fixMatrix]; }
- (IBAction) showTheGradient: sender { [imageView setImage:[NSImage prettyGradientImageForWWDCDemo]];}
- (IBAction) imageViewRecievedImage: sender
{
[self resetTransformations:nil];
[[imageView cell] setHighlighted:NO];
}
@end
/*
IMPORTANT: This Apple software is supplied to you by Apple Computer, Inc. ("Apple") in
consideration of your agreement to the following terms, and your use, installation,
modification or redistribution of this Apple software constitutes acceptance of these
terms. If you do not agree with these terms, please do not use, install, modify or
redistribute this Apple software.
In consideration of your agreement to abide by the following terms, and subject to these
terms, Apple grants you a personal, non-exclusive license, under Apple's copyrights in
this original Apple software (the "Apple Software"), to use, reproduce, modify and
redistribute the Apple Software, with or without modifications, in source and/or binary
forms; provided that if you redistribute the Apple Software in its entirety and without
modifications, you must retain this notice and the following text and disclaimers in all
such redistributions of the Apple Software. Neither the name, trademarks, service marks
or logos of Apple Computer, Inc. may be used to endorse or promote products derived from
the Apple Software without specific prior written permission from Apple. Except as expressly
stated in this notice, no other rights or licenses, express or implied, are granted by Apple
herein, including but not limited to any patent rights that may be infringed by your
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The Apple Software is provided by Apple on an "AS IS" basis. APPLE MAKES NO WARRANTIES,
EXPRESS OR IMPLIED, INCLUDING WITHOUT LIMITATION THE IMPLIED WARRANTIES OF NON-INFRINGEMENT,
MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE, REGARDING THE APPLE SOFTWARE OR ITS
USE AND OPERATION ALONE OR IN COMBINATION WITH YOUR PRODUCTS.
IN NO EVENT SHALL APPLE BE LIABLE FOR ANY SPECIAL, INDIRECT, INCIDENTAL OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) ARISING IN ANY WAY OUT OF THE USE,
REPRODUCTION, MODIFICATION AND/OR DISTRIBUTION OF THE APPLE SOFTWARE, HOWEVER CAUSED AND
WHETHER UNDER THEORY OF CONTRACT, TORT (INCLUDING NEGLIGENCE), STRICT LIABILITY OR
OTHERWISE, EVEN IF APPLE HAS BEEN ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
</pre>
<!--googleoff: index -->
</td>
</tr>
</table>
<!-- END WIDE COLUMN -->
<!-- END MAIN CONTENT -->
<table width="680" border="0" cellpadding="0" cellspacing="0">
<tr>
<td><div style="width: 100%; height: 1px; background-color: #919699; margin-top: 5px; margin-bottom: 15px"></div></td>
</tr>
<tr>
<td align="center"><br/>
<table border="0" cellpadding="0" cellspacing="0" class="graybox">
<tr>
<th>Did this document help you?</th>
</tr>
<tr>
<td>
<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=1&url=/samplecode/Transformed_Image/listing9.html%3Fid%3DDTS10000414-1.0&media=dvd" target=_new>Yes</a>: Tell us what works for you.</div>
<div style="margin-bottom: 8px"><a href="http://developer.apple.com/feedback/?v=2&url=/samplecode/Transformed_Image/listing9.html%3Fid%3DDTS10000414-1.0&media=dvd" target=_new>It’s good, but:</a> Report typos, inaccuracies, and so forth.</div>
<div><a href="http://developer.apple.com/feedback/?v=3&url=/samplecode/Transformed_Image/listing9.html%3Fid%3DDTS10000414-1.0&media=dvd" target=_new>It wasn’t helpful</a>: Tell us what would have helped.</div>
</td>
</tr>
</table>
</td>
</tr>
</table>
<!-- START BOTTOM APPLE NAVIGATION -->
<!--#include virtual="/includes/footer"-->
<!-- END BOTTOM APPLE NAVIGATION -->
<!-- START CENTER CLOSE -->
</center>
<!-- END CENTER CLOSE -->
</body>
</html>