[Interest] I know I'm just being stupid here...

[Tony Rietwyk]

This is what I do in a model delegate to paint html in cell:

     QAbstractTextDocumentLayout::PaintContext ctx;
     ctx.palette = optionV4.palette;
     // Elided code to change the ctx.palette depending on the cell state

     QTextDocument doc;
     doc.setDefaultFont(optionV4.font);
     doc.setTextWidth(textRect.width());
     doc.setDocumentMargin( mTextMargin );
     doc.setHtml(savedText);

     painter->save();
     painter->translate(textRect.topLeft());
painter->setClipRect(textRect.translated(-textRect.topLeft()));
     doc.documentLayout()->draw(painter, ctx);
     painter->restore();

Note that I'm using painter->setClipRect.

Regards, Tony


On 25/01/2019 3:44 am, Bob Hood wrote:
> Thanks for the response, Tony.
>
> I added an explicit setting of the page size:
>
>     ...
>     QTextDocument td;
>     QSizeF size(2000, 2000);
>     td.setPageSize(size);
>     td.drawContents(&painter);
>     ...
>
> Unfortunately, I still get the same clipping region as before.
>
>
> On 1/23/2019 8:49 PM, Tony Rietwyk wrote:
>>
>> Hi Bob,
>>
>> I think you'll need to increase the size of the document - maybe the 
>> paintContext is being clipped to the document size?
>>
>> Hope that helps,
>>
>> Tony
>>
>>
>> On 24/01/2019 2:18 pm, Bob Hood wrote:
>>> I'm trying to render rotated rich text, and it just keeps clipping 
>>> on me.  I can't seem to find the magic combination that will expand 
>>> the clipping region.
>>>
>>> The simplest paintEvent():
>>>
>>>     void VerticalLabel::paintEvent(QPaintEvent*)
>>>     {
>>>         QPainter painter(this);
>>>
>>>         painter.rotate(-20);
>>>
>>>         QTextDocument td;
>>>         td.setHtml(text());
>>>         td.drawContents(&painter);
>>>     }
>>>
>>> Slightly more involved paintEvent():
>>>
>>>     void VerticalLabel::paintEvent(QPaintEvent*)
>>>     {
>>>         QPainter painter(this);
>>>
>>>         painter.rotate(-20);
>>>
>>>         QTextDocument td;
>>>         td.setHtml(text());
>>>         QAbstractTextDocumentLayout::PaintContext ctx;
>>>         ctx.clip = QRectF(0, 0, 100, 400);
>>>         td.documentLayout()->draw(&painter, ctx);
>>>     }
>>>
>>> In both cases, I'm going from this without the rotation:
>>>
>>>
>>>
>>> to this with it:
>>>
>>>
>>>
>>>
>>> Question:  How do I alter this clipping so the text is visible when 
>>> it is vertical?  Setting the PaintContext.clip doesn't appear to 
>>> have any impact no matter what values I put in it, and Google 
>>> doesn't have any answers, as far as I could find.
>>>
>>>
>>> _______________________________________________
>>> Interest mailing list
>>> Interest at qt-project.org
>>> https://lists.qt-project.org/listinfo/interest
>>
>> _______________________________________________
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>
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