<Swing Dev> [9] Review request for 8157065: There is no the focus border on the selected tab.

Alexandr Scherbatiy alexandr.scherbatiy at oracle.com
Tue Sep 13 16:21:28 UTC 2016


On 9/12/2016 10:42 PM, Semyon Sadetsky wrote:
>
>
> On 9/12/2016 9:48 PM, Alexandr Scherbatiy wrote:
>> On 9/12/2016 7:52 PM, Semyon Sadetsky wrote:
>>> On 9/12/2016 6:50 PM, Alexandr Scherbatiy wrote:
>>>
>>>> On 9/12/2016 6:42 PM, Semyon Sadetsky wrote:
>>>>> GTKPainter does not implement a lot of methods which can be 
>>>>> accessed by public API. Could you, please, explain, why this 
>>>>> specific method is more important than, for example, 
>>>>> paintToolBarContentBackground() or paintToggleButtonBorder(), or 
>>>>> all other unimplemented?
>>>>>
>>>>> In general, how do you separate public API methods of the 
>>>>> SynthPainter class into two sets: the first set that *should be* 
>>>>> over-riden and the second set of methods that *should not be* 
>>>>> overr-riden? Are there any systematic criterium for that 
>>>>> differentiation?
>>>>   All the same methods with different number of arguments which do 
>>>> not fall to overridden implementation should be overridden to 
>>>> provide proper implementation.
>>> Where I can read about this rule for SynthPainter? And it obviously 
>>> is not true.
>>   This is a usual rule for public methods which can be used by an 
>> external application.
>>> There are a lot of methods that are not over-riden in GTKPainter. I 
>>> even wrote an examples above.
>>   The SynthPainter.paintToolBarContentBackground(..., orientation) 
>> calls SynthPainter.paintToolBarContentBackground(...) without the 
>> orientation and the GTKPainter .paintToolBarContentBackground 
>> overrides the method without the orientation.  So calls to 
>> gtkPainter.paintToolBarContentBackground(..., orientation) falls down 
>> to the overriden method in GTKPainter.
>>
>>  The same is for SynthPainter.paintProgressBarBackground(..., 
>> orientation)  and paintScrollBarBackground(..., orientation) methods.
>>
>>  The SynthPainter has only one paintToggleButtonBorder() method.
> Interesting rule... I thought that more specific method version may 
> have different implementation.
   It was done for historical reason. For example before the fix 
JDK-5033822 "Synth ScrollBar paintTrack() dosn't support orientation"
   there was only paintScrollBarBackground() method without the 
orientation in the SynthPainter class.
   After the fix the paintScrollBarBackground() method with the 
orientation is added which default implementation just calls the same 
method without the orientation because old user's subclasses can 
override the method without the orientation an not be aware about new 
method version.

> What would you say about paintSeparatorBackground() ?
> It's (..., orientation) version is over-ridden while the generic 
> version is not over-ridden.
    I guess that it is just a bug.

   Thanks,
   Alexandr.
>
> --Semyon
>>
>>  Thanks,
>>  Alexandr.
>>
>>
>>>
>>> --Semyon
>>>>
>>>>   Thanks,
>>>>   Alexandr.
>>>>>
>>>>> --Semyon
>>>>>
>>>>> On 9/12/2016 6:20 PM, Alexandr Scherbatiy wrote:
>>>>>> The paintTabbedPaneTabBorder() without orientation should be 
>>>>>> implemented as well because it can be accessed by public API.
>>>>>>
>>>>>> Thanks,
>>>>>> Alexandr.
>>>>>>
>>>>>> On 6/3/2016 10:54 PM, Semyon Sadetsky wrote:
>>>>>>>
>>>>>>>
>>>>>>> On 6/3/2016 10:34 PM, Sergey Bylokhov wrote:
>>>>>>>> On 03.06.16 22:21, Semyon Sadetsky wrote:
>>>>>>>>>> What reason? Why it is not public? since I provided the code 
>>>>>>>>>> example
>>>>>>>>>> where these methods are accessed by the user?
>>>>>>>>> GTK toollkit painting sequence is very different.
>>>>>>>>
>>>>>>>> What does it mean "different"? Even in this fix you implement 
>>>>>>>> one of the method according to the spec and skip the same 
>>>>>>>> method for some unknown reason.
>>>>>>>>
>>>>>>>>>>
>>>>>>>>>>> I still did not get why an overload method should have the 
>>>>>>>>>>> same behavior
>>>>>>>>>>> as its associates. This is a brand new design principle I've 
>>>>>>>>>>> never heard
>>>>>>>>>>> before.
>>>>>>>>>>
>>>>>>>>>> ...........
>>>>>>>>> That's nice...
>>>>>>>>> Do you have any other concerns?
>>>>>>>>
>>>>>>>> I still do not understand why the first method with default 
>>>>>>>> orientation is not implemented.
>>>>>>> I guess you meant "is not over-ridden". :) Once again: because 
>>>>>>> it is never used.
>>>>>>>
>>>>>>
>>>>>
>>>>
>>>
>>
>




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