Add links (to URLs or other pages) to objects

[Ali-Flt]

Hey there, is it possible to add links to other pages or urls? Similar to doing it in draw.io

[ibirothe]

Sorry for the late reply. It´s technically possible. The XML would look like this:

<UserObject label="Test" link="https://github.com/MerrimanInd/drawpyo" linkTarget="_blank" id="abc">
    <mxCell style="html=1;" vertex="1" parent="1">
        <mxGeometry/>
    </mxCell>
</UserObject>

To implement that into drawpyo a few additions need to be made though:

Add links to DiagramBase properties

self.link: Optional[str] = kwargs.get("link", None)
self.link_target: Optional[str] = "_blank" if self.link else None

Modify attributes to support link

@property
def attributes(self) -> Dict[str, Any]:
    attrs = {"id": self.id, "parent": self.xml_parent}

    # Include link only if set
    if self.link:
        attrs["link"] = self.link
        if self.link_target:
            attrs["linkTarget"] = self.link_target

    return attrs

Override XML printing when using link

This approach is used for tags and tooltip and just needs to be extended.

open_user_object_tag = f'<UserObject label="{self.xml_ify(self.value)}" id="{self.id}"'

if self.tag:
    open_user_object_tag += f' tags="{self.tag}"'

if self.tooltip:
    open_user_object_tag += f' tooltip="{self.xml_ify(self.tooltip)}"'

if self.link:
    open_user_object_tag += f' link="{self.xml_ify(self.link)}"'

open_user_object_tag += ">"

Hide the value attribute on the inner cell

This is being moved from the Cell to the UserObject.

Add helper function to DiagramBase

def add_link(self, link: str) -> None:
    self.link = link
    self.link_target = "_blank"