On 25 Nov 2009, at 14:06, Florian Soenens wrote:
> Hi Thomas,
>
> thanks for the reply, i did try the first method you suggest with adding a
> layer but it didn't work either.
> I also tought of the second method but how would i make sure that my
> IKImageBrowserView still receives drop event?
You should be able to set the overlay to be invisible to mouse events etc.
quite easily.
>
> I ned to be compatible with 10.5 so method 3 is out of the question.
>
> Thanks anyway!
>
> Florian.
>
> On 25 Nov 2009, at 14:44, Thomas Goossens wrote:
>
>> Hi Florian,
>>
>> You can't do custom drawing this way (because the IKImageBrowserView renders
>> into an openGL surface, so AppKit or CoreGraphics calls won't do anything).
>> So to do what you want you can either:
>> - make the view layer backed and add a sub-layer
>> - add an overlay transparent window on top of the image browser view
>> - add an overlay layer with setForegroundLayer: (that's the easiest solution
>> but it is SnowLeopard only).
>>
>> -- Thomas
>>
>>
>> On Nov 25, 2009, at 2:34 PM, Florian Soenens wrote:
>>
>>> Hi list,
>>>
>>> i'm trying to override an IKImageBrowserView to do some custom drawing but
>>> i'm stuck.
>>> What i try to accomplish is that when the view contains zero items, some
>>> custom drawing happens like drawing an NSAttributedString that says "Drop
>>> items here..."
>>> Problem is that my drawing code gets never called.
>>>
>>> Here's the drawRect method of my IKImageBrowserView:
>>>
>>> - (void)drawRect:(NSRect)rect
>>> {
>>> [super drawRect:rect];
>>>
>>> NSUInteger numItems = [[self dataSource]
>>> numberOfItemsInImageBrowser:self];
>>>
>>> if(numItems <= 0)
>>> {
>>> NSLog(@"No items in me"); // This gets called, so i'm sure the
>>> above code works
>>>
>>> NSRect bounds = [self bounds];
>>> bounds.size.width = 200;
>>> bounds.size.height = 200;
>>> bounds.origin.x += 200;
>>> bounds.origin.y += 200;
>>>
>>> //[NSGraphicsContext saveGraphicsState];
>>>
>>> [[NSColor yellowColor] set]; // Just for testing purposes
>>> NSRectFill(bounds);
>>>
>>> //[NSGraphicsContext restoreGraphicsState];
>>> }
>>> }
>>>
>>> Uncommenting the NSGrahicsContext doesn't help either.
>>>
>>> Anyone has any ideas or workarounds for this?
>>> Thanks in advance,
>>> Florian
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