<Swing Dev> [13] RFR JDK-8213535:Windows HiDPI html lightweight tooltips are truncated

[Prasanta Sadhukhan]

Hi Sergey,

Hi Sergey,
On 27-Jul-19 2:56 AM, Sergey Bylokhov wrote:
> Hi, Prasanta.
> On 01.07.2019 03:25, Prasanta Sadhukhan wrote:
>>>>> Currently this rectangle is created based on the size of the 
>>>>> component, so this rectangle is smaller that the size.
>>>>> But it looks like after the fix the rectangle will be bigger. 
>>>>> Probably the bug exists in getPreferredSize() where we return 
>>>>> small size?
>>>>>
>> I have modified the fix to scale the size in getPreferredSize() as 
>> asked.
>> http://cr.openjdk.java.net/~psadhukhan/8213535/webrev.1/
>
> If I am not missing something then BasicToolTipUI.getPreferredSize() 
> is based on View.getPreferredSpan(). And it looks like the View 
> actually responsible to draw the actual text. I guess the View should 
> know what is the correct preferred size of the text. If the size of 
> the View is outdated then probably we need to reset it?
>
> For example take a look to the BasicButtonUI class it uses the similar 
> logic on top of View, but we reset the view if font, or font transform 
> is changed see JDK-8201552 and BasicButtonListener.propertyChange()
>
BasicToolTipUI.propertyChange was already changed by 8201552 to update 
the view if "scale" is changed but the problem still exists so it means 
View does not know about the correct preferred size of text, so we need 
the above patch to make it work.

Regards

Prasanta