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POCocoa - loading a view from a nib and displaying it in a NSView container , as a subview
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  1. POCocoa - loading a view from a nib and displaying it in a NSView container , as a subview
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    copied!<p>I've asked about this earlier but the question itself and all the information in it might have been a little confusing, plus the result i want to get is a little more complicated. So i started a new clean test project to handle just the part that im interested to understand for the moment.</p> <p>So what i want, is basically this: i have a view container (inherits NSView). Inside, i want to place some images, but not just simple NSImage or NSImageView, but some custom view (inherits NSView also), which itself contains a textfield and an NSImageView. This 'image holder' as i called it, is in a separate nib file (im using this approach since i am guiding myself after an Apple SAmple Application, COCOA SLIDES). The results i got so far, is something but not what i am expecting. Im thinking i must be doing something wrong in the Interface Builder (not connecting the proper thingies), but i hope someone with more expertise will be able to enlighten me.</p> <p>Below i'll try to put all the code that i have so far:</p> <pre><code>//ImagesContainer.h #import &lt;Cocoa/Cocoa.h&gt; @interface ImagesContainer : NSView { } @end //ImagesContainer.m #import "ImagesContainer.h" #import "ImageHolderView.h" #import "ImageHolderNode.h" @class ImageHolderView; @class ImageHolderNode; @implementation ImagesContainer - (id)initWithFrame:(NSRect)frame { self = [super initWithFrame:frame]; if (self) { // Initialization code here. //create some subviews for(int i=0;i&lt;3;i++){ ImageHolderNode *node = [[ImageHolderNode alloc] init]; [self addSubview:[node rootView]]; } } NSRunAlertPanel(@"subviews", [NSString stringWithFormat:@"%d",[[self subviews] count]], @"OK", NULL, NULL); return self; } - (void)drawRect:(NSRect)dirtyRect { // Drawing code here. [[NSColor blackColor] set]; NSRectFill(NSMakeRect(0,0,dirtyRect.size.width,dirtyRect.size.height)); int i=1; for(NSView *subview in [self subviews]){ [subview setFrameOrigin:NSMakePoint(10*i, 10)]; i++; } } @end //ImageHolderView.h #import &lt;Cocoa/Cocoa.h&gt; @interface ImageHolderView : NSView { IBOutlet NSImageView *imageView; } @end //ImageHolderVIew.m #import "ImageHolderView.h" @implementation ImageHolderView - (id)initWithFrame:(NSRect)frame { self = [super initWithFrame:frame]; if (self) { } return self; } - (void)drawRect:(NSRect)dirtyRect { // Drawing code here. [[NSColor blueColor]set]; NSRectFill(NSMakeRect(10,10, 100, 100)); //[super drawRect:dirtyRect]; } @end //ImageHolderNode.h #import &lt;Cocoa/Cocoa.h&gt; @class ImageHolderView; @interface ImageHolderNode : NSObject { IBOutlet ImageHolderView *rootView; IBOutlet NSImageView *imageView; } -(NSView *)rootView; -(void)loadUIFromNib; @end //ImageHolderNode.m #import "ImageHolderNode.h" @implementation ImageHolderNode -(void)loadUIFromNib { [NSBundle loadNibNamed:@"ImageHolder" owner: self]; } -(NSView *)rootView { if( rootView == nil) { NSRunAlertPanel(@"Loading nib", @"...", @"OK", NULL, NULL); [ self loadUIFromNib]; } return rootView; } @end </code></pre> <p>My nib files are:</p> <ol> <li>MainMenu.xib</li> <li><p>ImageHolder.xib</p></li> <li><p>MainMenu is the xib that is generated when i started the new project.</p></li> <li>ImageHolder looks something like this: <a href="http://www.pixavue.com/remoteimg/imageholder.png" rel="nofollow noreferrer">image link</a></li> </ol> <p>I'll try to mention the connections so far in the xib ImageHolder :</p> <p>File's Owner - has class of ImageHolderNode The main view of the ImageHolder.xib , has the class ImageHolderView</p> <p>So to resume, the results im getting are 3 blue rectangles in the view container, but i cant seem to make it display the view loaded from the ImageHolder.xib</p> <p>If anyone wants to have a look at the CocoaSlides sample application , its on apple developer page ( im not allowed unfortunately to post more than 1 links :) )</p>
 

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