Read Slide and Shape tags

CrunchCube commented 4 years ago

Witin PowerPoint VBA it is possible to add custom properties for a shape, slide, or presentation. These are set as tags with a key value pair. eg ActivePresentation.Slides(1).Tags.Add "Region", "East"

It is then possible to read (and or update) these custom properties using the tag key eg val = ActivePresentation.Slides(1).Tags("Region") or looping over all the tags to get a specific one

eg

With shape For i = 1 To Tags .Count step 1 If .Name(i) = "PRIORITY" Then do something End If Next End With

I use this feature for ppt automation and configuration. I'm transition over to python and using python-pptx I'm unable to work with these custom tags. Is it possible to add the ability to read these tags (custom properties) for presentations, slide and shapes through the api for example

for tag in shape.tags: if tag.name == 'MOD' do something

or

for tag in shape.tags: if tag('MOD') == 'REFORMAT:
do something

sgspecker commented 4 years ago

I'd like to add my support for this feature request! I won't be able to transition from VBA until we have support for this feature.

CrunchCube commented 1 year ago

Hi, I'm doing some additional development work on my PPT automation using custom properties and this issue about reading tags (custom properties) in python-pptx came up again. Is it possible to either write/read or just read these tags using python-pptx?

MartinPacker commented 1 year ago

What does the XML look like?

CrunchCube commented 1 year ago

Hi where do I need to look for the required xml? I can see a folder called tags in the zip file which seems to have a number of xml files in there.

CrunchCube commented 1 year ago

Been digging around the XML and Objects. A custom tag added through the vba code are added as: _

</p:custDataLst>_ in the /ppt/slides/slideX.xml

Looking at PPTX using Open XML SDK for a specific slide I can see a /ppt/tags/tagX.xml for each object that has a custom tag.

slide10.xml.rels in the _rles folder

here is the xml in a specific tag Source ../tags/tag65.xm ?xml version="1.0" encoding="UTF-8" standalone="yes"?>

So how do I go about reading all the tags for a specific slide and basd on the tag name and val implement the required code.

CrunchCube commented 1 year ago

I've generated a list of the available tag file for a slide [r.target_partname for r in slide.part.rels if r.reltype == 'http://schemas.openxmlformats.org/officeDocument/2006/relationships/tags' and r.is_external==False]

This generates a list for example ['/ppt/tags/tag1.xml', '/ppt/tags/tag2.xml'].

I would like to iterate over this list and read the file in the list and extract the required data from the xml to create a dictionary eg

How do I go about reading this path file in python-pptx? Any help will be greatly appreciated!

rodrigo-olivareslopez commented 8 months ago

Hi all, has anyone found a solution to this?

I need to add custom tags to certain shapes. The three-way relationship between the slide's XML file, the relationships XML file, and the specific tag's XML file makes it very tricky to try to manually update the files. Such a simple task with VBA / VST C# but here it looks daunting, has anyone found a workaround?

sgspecker commented 8 months ago

I haven't found an easy solution, yet. It would probably be easy if I better understood the underlying PPTX file structure. But for now, I'm continuing to use VBA for my PPTX automation scripts. FWIW,Scott On Wednesday, February 21, 2024 at 11:40:08 AM CST, Rodrigo @.***> wrote:

Hi all, has anyone found a solution to this?

I need to add custom tags to certain shapes. The three-way relationship between the slide's XML file, the relationships XML file, and the specific tag's XML file makes it very tricky to try to manually update the files. Such a simple task with VBA / VST C# but here it looks daunting, has anyone found a workaround?

— Reply to this email directly, view it on GitHub, or unsubscribe. You are receiving this because you commented.Message ID: @.***>

scanny / python-pptx

Read Slide and Shape tags #578