Previous expression with noteWidth does not make sense as noteWidth is
not used in case of note over two participants - forceWidth is used
instead. It tried to be symmetrical over cases A,B and B,A but failed.
Can be seen with messages over conf.width size (cannot reproduce in the
live editor as it seems to use not the last version where the code
does not use noteWidth).
The changed code explicitly calculates which of the actors is the
"left" one and starts rendering half margin to the left of its cetral
line.
This commit fixes some bugs, and I believe, improves upon the current
implementation.
In no particular order, it adds:
1. Control over note font size, family and alignment (now defaults to
center)
2. Dynamic actor resizing - actor's width will now scale if its
description is bigger than the static configured width
3. Dynamic actor margins - the margin between actors will now be
dynamically calculated by taking into account the width of connecting
messages or notes
4. Fixed a small visual annoyance where a loop arrow would intersect
with the text it loops on
5. Fixed a bug where if global config -> fontFamily wasn't defined, it
would override the actorFontFamily with an undefined
6. Removed some stale / commented out code
7. Added missing config variables to the global config object in mermaidAPI.js
8. Added messageFontSize, messageFontFamily to control message (non-note)
font settings
9. Memoized the actor widths in a pre-calculation that takes notes and
signals lengths into account
10. Removed redundant console.log lines
11. Extracted out actor width & margin calculation to getMaxMessageWidthPerActor, and
calculateActorMargins
This commit allow user to write multiline messages in sequence diagram.
For instance:
```
sequenceDiagram
Alice->>+John: Hello John<br>How are you?<br>I mean...<br>Are you OK today?
Alice->>+John: John, can you hear me?
John-->>-Alice: Hi Alice, I can hear you!<br>Keep calm!<br>I'm there.
John-->>-Alice: And I feel great!
```
This extends the `br` tag regex to accommodate an arbitrary amount of
any type of whitespace instead of a single space character, which holds
more closely to the HTML spec[1]
This extends the fix to #702 added in #1153
[1]: http://www.w3.org/TR/REC-xml/#sec-starttags
- Add support for <br/> delimiter in actor descriptions.
- Add actorFontFamily and actorFontSize options to sequence diagram.
- Change default actor description font from times to sans.
Fix#384#702#755
