X-Git-Url: https://git.proxmox.com/?p=pve-docs.git;a=blobdiff_plain;f=README.adoc;h=cda72b0a9bc3a90698ee1c0806e6790935be4c96;hp=2970e60fa9f476ed2b346744b69492b77b9f1f15;hb=563159b1691c49e489adf3c3561acdde41536acf;hpb=0d1b9a161a2277dfc19e61617e8f83f201b4fe79

diff --git a/README.adoc b/README.adoc
index 2970e60..cda72b0 100644
--- a/README.adoc
+++ b/README.adoc
@@ -239,14 +239,38 @@ text:
 For example, block headers can be used to add file names/paths to file
 content listings.
 
+
+Online Help
+-----------
+Each {pve} installation contains the full documentation in HTML format,
+which is then used as the target of various help buttons in the GUI.
+
+If after adding a specific entry in the documentation you want to
+create a help button pointing to that, you need to do the
+following:
+
+* add a string id in double square brackets before your 
+documentation entry,  like `[[qm_general_settings]]`
+* rebuild the `asciidoc-pve` script and the HTML chapter file containing 
+your entry
+* add a property `onlineHelp` in the ExtJS panel you want to document,
+using the above string, like `onlineHelp: qm_general_settings`
+This panel has to be a child class of PVE.panel.InputPanel
+
+On calling `make install` the asciidoc-pve script will populate
+a JS object associating the string id and a link to the 
+local HTML documentation, and the help button of your input panel 
+will point to this link.
+
+
 Screenshots
 -----------
 
 [thumbnail="gui-datacenter-search.png"]
 
 First, it should be noted that we can display screenshots on 'html'
-and 'wiki' pages, and we can include them in printed doumentation. But
-ith is not possible to render them inside manual pages. So screenshot
+and 'wiki' pages, and we can include them in printed documentation. But
+it is not possible to render them inside manual pages. So screenshot
 inside manual pages should be optional, i.e. the text should not
 depend on the visibility of the screenshot. You can include a
 screenshot by setting the 'thumbnail' attribute on a paragraph:
@@ -256,13 +280,55 @@ screenshot by setting the 'thumbnail' attribute on a paragraph:
 First, it should be noted ...
 ----
 
+The corresponding file need to reside inside folder
+`images/screenshot`, and should be in `.png` image format. We include
+the screenshots in printed documentation, and 'pdftex' uses the
+density (DPI) specified inside the file. So all screenshots should use
+the same density. We currently require the density set to 146 DPI, so
+that we can display a 1024 pixels wide image. You should not include
+larger screenshots (although it is possible).
+
+You can use the `./png-cleanup.pl` script to set the correct
+density. Simply use the following command to import a screenshot
+image:
+
+----
+# ./png-cleanup.pl screenshot.png images/screenshot/screenshot.png
+----
+
+TIP: You can use `identify -verbose screenshot.png` command to show
+all image attributes (from debian package 'imagemagick')
+
+.Default Screenshot Layout
+
+[thumbnail="gui-datacenter-search.png"]
+
+We normally display screenshots as small thumbnail on the right side
+of a paragraph. On printed documentation, we render the full sized
+graphic just before the paragraph, or between the title and the text
+if the paragraph has a title. It is usually a good idea to add a title
+to paragraph with screenshots.
+
+[thumbnail="gui-datacenter-search.png", float="left"]
+
+If you need to render many screenshots, it is possible to place them
+on the left side, so you can alternate the thumbnail position using the
+`float` attribute:
+
+----
+[thumbnail="gui-datacenter-search.png", float="left"]
+If you need to render many screenshots ...
+----
 
+Please avoid to many consecutive screenshots to avoid rendering
+problems. Also verify the printed documentation to see if large
+screenshots create layout problems.
 
 
 Copyright
 ---------
 
-Copyright (C) 2016 Proxmox Server Solutions Gmbh
+Copyright (C) 2016-2017 Proxmox Server Solutions Gmbh
 
 Permission is granted to copy, distribute and/or modify this document
 under the terms of the GNU Free Documentation License, Version 1.3 or