PyPreviewGenerator 0.1.9

Generation of file previews

==================================
Preview\_generator's Documentation
==================================

------------
Presentation
------------

This module allows to generate jpeg and pdf preview for virtually any kind of files.
It allows to generate preview for a given page.
The context of creation of this module (as an
example of use context) was for Tracim, a github project
(https://github.com/Tracim/tracim) where users can put file on a
repository in order to share it with other users. The only way to find a
file was with his name. Hence it was decided to generate previews of the
files in order to ease the location of one.

--------------
Format handled
--------------


.. raw:: html

<style type="text/css">
.tg {border-collapse:collapse;border-spacing:0;}
.tg td{font-family:Arial, sans-serif;font-size:14px;padding:10px 5px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;}
.tg th{font-family:Arial, sans-serif;font-size:14px;font-weight:normal;padding:10px 5px;border-style:solid;border-width:1px;overflow:hidden;word-break:normal;}
.tg .tg-baqh{text-align:center;vertical-align:top}
.tg .tg-045v{font-size:100%;font-family:serif !important;;text-align:center;vertical-align:top}
</style>
<table class="tg">
<tr>
<th class="tg-045v"></th>
<th class="tg-baqh">JPEG</th>
<th class="tg-baqh">PDF</th>
<th class="tg-baqh">TEXT</th>
<th class="tg-baqh">HTML</th>
<th class="tg-baqh">JSON<br></th>
</tr>
<tr>
<td class="tg-baqh">PNG</td>
<td class="tg-baqh">☑</td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
</tr>
<tr>
<td class="tg-baqh">JPEG</td>
<td class="tg-baqh">☑</td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
</tr>
<tr>
<td class="tg-baqh">BMP</td>
<td class="tg-baqh">☑</td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
</tr>
<tr>
<td class="tg-baqh">GIF</td>
<td class="tg-baqh">☑</td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
</tr>
<tr>
<td class="tg-baqh">PDF</td>
<td class="tg-baqh">☑</td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
</tr>
<tr>
<td class="tg-baqh">Compressed<br>files<br></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh">☑</td>
<td class="tg-baqh">☑</td>
<td class="tg-baqh"></td>
</tr>
<tr>
<td class="tg-baqh">Office files<br>(word, LibreOffice)<br></td>
<td class="tg-baqh">☑</td>
<td class="tg-baqh">☑</td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
</tr>
<tr>
<td class="tg-baqh">Text<br></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh">☑</td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
</tr>
<tr>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
<td class="tg-baqh"></td>
</tr>
</table>


------------
Installation
------------

`pip install preview_generator`

------------------------------------------------------------------------

----
Uses
----

Getting a preview
-----------------

.. code:: python

from PyPreviewGenerator.manager import *
manager = PreviewManager(path='/home/user/Pictures/')
path_to_file = manager.get_jpeg_preview(
file_path='/home/user/Pictures/myfile.gif',
height=100,
width=100,
)
print('Preview created at path : ', path_to_file)




The preview manager
-------------------

.. code:: python

preview_manager = PreviewManager(cache_path)

*args :*

*cache_path : a String of the path to the directory where the cache file will be stored*

*returns :*

*a PreviewManager Object*

The builders
------------

Here is the way it is meant to be used

For Office types into PDF :
===========================

.. code:: python

preview_manager = PreviewManager(cache_path)
preview = preview_manager.get_pdf_preview(file_path,page=page_id)

-> Will create a preview from an office file into a pdf file

*args :*

*file_path : the String of the path where is the file you want to get the preview*

*page : the page you want to get. If not mentioned all the pages will be returned*

*returns :*

*a FileIO stream of bytes of the pdf preview*

For images(GIF, BMP, PNG, JPEG) into jpeg:
==========================================

.. code:: python

preview_manager = PreviewManager(cache_path)
preview = preview_manager.get_jpeg_preview(file_path,height=1024,width=526)

-> Will create a preview from an image file into a jpeg file of size 1024 * 526

*args :*

*file_path : the String of the path where is the file you want to get the preview*

*height : height of the preview in pixels*

*width : width of the preview in pixels. If not mentioned, width will be the same as height*

*returns :*

*a FileIO stream of byte*s of the jpeg preview*