[BUG] Text with fill property shadow angle and blur issue

[caglartufan]

I'm trying to add a Text element to a slide using the code below:

slide.addText('TEST 360 DEGREES', {
  x: 2,
  y: 0,
  w: 3,
  h: 1,
  fill: '00FF00',
  fontFace: 'Arial',
  fontSize: 16,
  shadow: {
    type: 'outer',
    angle: 360,
    color: '000000',
    blur: 0,
    offset: 5,
    opacity: 0.5,
  },
});

This code successfully adds a Text element to the PPTX document but the shadow angle doesn't seem to work properly. I tried to set different values for angle proeprty like 0, 90, 180, 270, 360 but they don't work properly.

Another issue is that whenever I set shadow blur to 0, it causes the shadow to have blur of 8 points. Other values working well (blur > 0). Didn't try the negative values as it doesn't make sense.

Issue Category

• Enhancement
• Bug
• Question
• Documentation gap/issue

Product Versions

• Please specify what version of the library you are using......: [3.12.0]
• Please specify what version(s) of PowerPoint you are targeting: Latest versions of Office PowerPoint and 365 PowerPoint Web
• Please specify what web browser you are using.................: Google Chrome

Desired Behavior

I expect the set shadow angle to work properly, when I set angle to 0 and 180 they should be reverse to each other and same for 270 and 90 degrees.

I also expect to be able to set shadow blur to 0 causing a shadow with crisp edges, no blur.

Observed Behavior

I took screenshot of different angle and 0 blur properties' outputs from Ubuntu's LibreOffice. Same outputs can be observed with 365 Office Mobile application. I can't see any shadow in Office 365 Web though I don't know why.

0 degrees angle and 0 blur:

90 degrees angle and 0 blur:

180 degrees angle and 0 blur:

270 degrees angle and 0 blur:

360 degrees angle and 0 blur:

Steps to Reproduce

Simply run the above code to add Text and change angle values and set blur to 0.

[caglartufan]

UPDATE: I was wrong with 360 degree one since we can't set angle to 360. Documentation says valid angle values are 0-359. I set it to 359 and I'm fine with that. We can't set 0 degrees angle though.