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Re: addSubView: [NSView subviews] doesn't show any subviews, after adding subviews. ****Revised****
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Re: addSubView: [NSView subviews] doesn't show any subviews, after adding subviews. ****Revised****


  • Subject: Re: addSubView: [NSView subviews] doesn't show any subviews, after adding subviews. ****Revised****
  • From: "Frederick C. Lee" <email@hidden>
  • Date: Fri, 18 Nov 2005 16:03:00 -0800

Revision:
I essentially added another NSImageView to the mix so that after clicking the button 'add SubViews' I should get two (2) subviews within the container.


Scenario:
1) The container view is a subClass of NSBox (so I can visually see the outline of the container). The ricImageView, etc. are just small thumbnail images.


2) I got suspicious about seeing ONLY ONE (1) NSView under the container view when I clearly added two (2) views.
So I looked inside this one NSView and found the two subviews that I was originally searching for.


(gdb) cont
Continuing.
2005-11-18 15:55:53.819 Global Village[24379] {GVDocument.m: addSubView}
2005-11-18 15:55:53.820 Global Village[24379] {GVContainerView.m: addSubview}
2005-11-18 15:55:53.821 Global Village[24379] {GVContainerView.m: addSubview}
(gdb) po [gvContainerView subviews]
<NSCFArray 0x362170>(
<NSView: 0x3918a0>
)


(gdb) po [[gvContainerView subviews] objectAtIndex:0]
<NSView: 0x3918a0>

(gdb) po [[[gvContainerView subviews] objectAtIndex:0] subviews]
<NSCFArray 0x3ca130>(
         <NSImageView: 0x3968a0>,
         <NSImageView: 0x3d7390>
)


3) I don't know what this middle 'NSView' object is. Perhaps its the Context View of GVContainerView? I don't know.
I just had to drill DEEPER to find the subviews.


Ric.


Correct.
ricImageView is a simple image and is not null:

(gdb) po ricImageView
<NSImageView: 0x397200>
(gdb) po [ricImageView image]
NSImage 0x396600 Size={65, 45} Reps=(
NSBitmapImageRep 0x397060 Size={65, 45} ColorSpace=NSCalibratedRGBColorSpace BPS=8 BPP=24 Pixels=65x45 Alpha=NO Planar=NO Format=0
)
(gdb)


On Nov 18, 2005, at 3:18 PM, Joseph Kelly wrote:

Is ricImageView non-null?

joe


On Nov 18, 2005, at 3:14 PM, Frederick C. Lee wrote:

Greetings:
I just wanted to add subviews to a container view: eventually having n-rows and n-columns of subviews within a container view. I want to manage those views via the container view's subviews array. But as you can see, the container array doesn't get populated by new subviews.


What am I missing?

Regards,

Ric.



Before Adding Subview:
(gdb) po [gvContainerView subviews]
<NSCFArray 0x394890>(
<NSView: 0x394ba0>
)

After Adding Subview:
(gdb) po [gvContainerView subviews]
<NSCFArray 0x394890>(
<NSView: 0x394ba0>
)


- (IBAction)addSubView:(id)sender { NSLog(@"{GVDocument.m: addSubView}"); [gvContainerView addSubview:ricImageView]; NSRect myRect; myRect.origin.x = 10; myRect.origin.y = 10; myRect.size.width = 60; myRect.size.height = 60;

    [ricImageView setFrame:myRect];

    [gvContainerView setNeedsDisplay:YES];
    return;
}

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References: 
 >addSubView: [NSView subviews] doesn't show any subviews, after adding subviews. (From: "Frederick C. Lee" <email@hidden>)

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