Canvas reverts to small view area on save

[jgadsden]

Describe the bug:
When a diagram is saved, Antv/X6 drawing package reverts the canvas size to the size of the container view
The user is left with a confusing diagram and has to drag components to get them back into view
Updating to antv/x6 version 2.x did not solve this, see #722

Expected behaviour:
when opening a diagram, the canvas size and viewing area should match the previous sizes

Environment:

• Version: after commit 6b8f3e3
• Platform: both Web App and Desktop App
• OS: all of MacOS / Windows / Linux
• Browser: all of chrome, firefox, safari

To Reproduce:

1. Open the example diagram
2. drag a component so that the diagram canvas resizes
3. save the diagram
4. only a portion of the canvas is now displayed

Any additional context, screenshots, etc:

Create a model that spans more than one page vertically, note that this diagram is zoomed out to show the complete example model:

press the save button and observer that only the top page is displayed in the diagram view:

The model is still complete, zoom in and out to reframe the diagram

[MohSaqlainn]

@jgadsden I do not get this point.

Because on my side, when I save the file, it does not revert the canvas size...

Are you saying that when he saves the file in a JSON file and then opens this JSON file again, it reverts the canvas size to the size of the container view? can you elaborate on this more?

[jgadsden]

the problem is to do with the dependencies for the version of antv/x6 that we are using : v1.35.0 or v1.35.1

I am not sure which dependency it is but we can take the v2.2.0 tag, which works, and update the dependencies which then produce the fault:

npm run clean
rm td.vue/package-lock.json
git status
npm i
grep -n2 "antv" td.vue/package-lock.json
npm run start:desktop

this means we have to update antv/x6 to version 2.x, subject of issue #722

[jgadsden]

moving this to version 2.4
it seems to be an incompatibility with antv/x6 and Vue 2
Vue is due to be migrated to away from 2.x to version 3.5.x, subject of issue #444