* Update documentation

[bpgallery.git] / README

diff --git a/README b/README
index 9a4aec8e8941bb7405bda7296582822f6bb7798e..026262f6c6f043b6c93be95947b7ed1213b44b9b 100644 (file)
--- a/README
+++ b/README
@@ -22,17 +22,129 @@ bpgallery.sh /path/to/image/files
 
 Also, the following files, if placed in the images directory, will be used to
 generate part of the index page:
 
 Also, the following files, if placed in the images directory, will be used to
 generate part of the index page:

-        description.txt - a simple text file containing paragraphs to go at the
-                          beginnings of the index page
-        captions.txt - filename<tab>caption style file, it'll add a caption to
-                       the images on the index page.
+        description.txt
+            a simple text file containing paragraphs to go at the beginnings of
+            the index page
+        captions.txt
+            filename<tab>caption style file, it'll add a caption to the images
+            on the index page.
+
+If both width and height are specified then it'll be resized to the bounding
+box that contains it.
+
+If height is specified without width then the bounding box will be 100xHEIGHT
+for icons and 400xMEDIUMHEIGHT for the medium sized image pages
+

 The following environment variables can also be used:
 The following environment variables can also be used:

-        TITLE - the title of the gallery
-        WIDTH - the width to make the icons
+        TITLE
+            the title of the gallery
+
+        WIDTH
+            the width to make the icons
+
+        HEIGHT
+            the height to make the icons
+
+        MEDIUMWIDTH
+            set the width of images in the medium size pages
+
+        MEDIUMHEIGHT
+            the height to make images in the medium size pages
+
+        BPGALLERY_THEME
+            set the theme to use (described below)
+
+        BPGALLERY_THEME_DIR
+            set an extra location to look for themes
+
+        OUTPUTHTML
+            sets the script output to be wrapped in a <pre> block
+
+        GENERATEPAGESFORMEDIUMSIZE
+            generate medium sized images and pages
+
+        GENERATEPAGESFORFULLSIZE
+            decide wether to generate pages for the full size images or not
+
+        INDEXDOCUMENT
+            name of the index page (e.g. index.html)
+
+        PAGESDIRECTORY
+            name of the directory in which to put the pages for fullsized and
+            mediumsized images. Defaults to the image directory. This is
+            relative to the images directory, so, for example,
+            PAGESDIRECTORY=pages would create /path/to/image/files/pages
+
+        MEDIUMDIRECTORY
+            directory to generate medium sized images in, defaults to medium,
+            works the same as the PAGESDIRECTORY variable
+
+        ICONSDIRECTORY
+            directory to generate thumbnails in, defaults to icons, works the
+            same as MEDIUMDIRECTORY and PAGESDIRECTORY

 
 Example Usage:
         TITLE="My Funky Gallery" bpgallery.sh /path/to/image/files
 
 
 Example Usage:
         TITLE="My Funky Gallery" bpgallery.sh /path/to/image/files
 

+Themes
+------
+Theme support is very rudimentary, basically you create functions for each of
+the parts of the template, and put them in a file named the same as the theme.
+The functions that you need to declare are as follows:
+
+        Available in all templates:
+            ${BASEURL}
+                Base directory (will generate ../ when making pages in a
+                subdirectory for getting to the generated stylesheet or to the
+                index page)
+
+        bpgallery_ThemeName_head()
+                what's it for?:
+                        This sets up the header for the page, generally
+                        everything until the first picture. So, the title bar
+                        and any menus you would like to use
+                available variables:
+                        $TITLE       - the title for the index page
+        bpgallery_ThemeName_tail()
+                what's it for?:
+                        Closes the page, is the last thing to be printed.
+                available variables:
+                        None
+        bpgallery_ThemeName_description()
+                what's it for?:
+                        if there's a description set up (i.e. a description.txt
+                        file) then this is what it'll be wrapped in. It comes
+                        just after the _head.
+                available variables:
+                        $DESCRIPTION - the content of description.txt
+        bpgallery_ThemeName_stylesheet()
+                what's if for?:
+                        It generates the stylesheet for the page.
+                available variables:
+                        $WIDTH       - the width of the images
+                        $MAXWIDTH    - the maximum width of the images
+                        $MAXHEIGHT   - the maximum height of the images
+        bpgallery_ThemeName_thumbsline()
+                what's it for?:
+                        Whatever is in here is generated per thumbnail.
+                available variables:
+                        $link        - the page/image to link to
+                        $filename    - the name of the file
+                        $caption     - the caption as got from captions.txt
+        bpgallery_ThemeName_page()
+                what's it for?:
+                        It generates the pages for fullsize image pages
+                available variables:
+                        $filename    - the name of the image
+                        $previouspage - the URL for the previous page
+                        $currentpage - the url for the current page
+                        $nextpage    - the url for the next page
+                        $caption     - the image caption
+
+If any of the functions are not defined in a theme then the default theme
+function will be used instead. The default theme is clean and simplistic, this
+is deliberate!
+

 Author
 ------
 Brett Parker:
 Author
 ------
 Brett Parker: