Render dia and vdx files

Notice: This plugin is unmaintained and available for adoption.

Description

This plugin automatically creates a bitmapped render of ​Dia and MS Visio VDX diagrams when attaching them to objects in Trac.

This has taken the original DiaViewPlugin and modified it for use with Trac 0.11, and at the same time included support for vdx and compressed files.

It has had very little testing. It has been set up as a separate hack to the original DiaViewPlugin so as not to break DiaViewPlugin for Trac < 0.11.

If the width was changed in the macro argument, the displayed image would scale, however the source file stayed the same. To overcome this issue, the width is checked using the image library, and if different it is re-rendered. Please see ​Python Imaging Library.

Bugs/Feature Requests

Existing bugs and feature requests for DiaVisViewPlugin are here.

If you have any issues, create a new ticket.

defect	5 / 7
enhancement	7 / 8
task	0 / 1

Download and Source

Download the [download:diavisviewplugin zipped source], check out ​using Subversion, or browse the source​ with Trac.

Installation

To install download the archive, then either run:

$ python setup.py install

or copy it to the plugins directory of the particular Trac project.

Do not forget to enable the macro in your trac.ini file in the components section like this:

[components]
diavisview.* = enabled

Also ensure that dia (diagram editor) and the Python Imaging Library are installed.

Example

Attach a file you wish to display to the page as per normal. The files can be either dia or vdx, compressed or uncompressed.

Make suitable macro entries in the page. If a number is given after the filename it will be taken as the width. Please see the main image macro for all the options.

[[DiaVisView(Diagram1.dia)]]

[[DiaVisView(Diagram2.vdx, border=5)]]

Recent Changes

15900 by rjollos on 2016-09-16 03:57:34

0.3dev: Make compatible with Trac 1.0

• Use Pillow rather than PIL
• Add Pillow to install requirements
• Make path to Dia binary configurable from trac.ini
• Allow Dia's output filter to be set in trac.ini
• Support options for non-png renders
• Refactor to split a long method somewhat
• Fix the output html element being <p> instead <a>
• Move RE compilation out of the macro expansion
• Do not check width if not needed

Most of the changes provided by jaroslav.benkovsky@…

Refs #12529.

14916 by rjollos on 2015-10-11 20:46:19

0.2dev: Tag build as dev.

Refs #12529.

14915 by rjollos on 2015-10-11 20:44:25

0.2dev: Branch for Trac 1.0 support.

Refs #12529.

(more)

Author/Contributors

Author: robert_martin
Maintainer: none (needsadoption)
Contributors: arkemp