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authorzweistein <zweistein@web>2020-03-07 13:51:34 +0000
committerIkiWiki <ikiwiki.info>2020-03-07 13:51:34 +0000
commita068dd248dfb1ef4305a3e7ce68cac54d1537ecb (patch)
treef15d63415c6ce0470603245adc2e86e619017235 /ikiwiki
parente718a95ef4f2bf02394629a04633185973d15247 (diff)
aktiv?
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+[[!if test="enabled(img)"
+ then="In diesem Wiki ist die Direktive: img **aktiviert**."
+ else="In diesem Wiki ist die Direktive: img **nicht aktiv**; falls dies gew├╝nscht wird, den Admin benachrichtigen."]]
+
+---
+The `img` directive is supplied by the [[!iki plugins/img desc=img]] plugin.
+
+This is an image handling directive. While ikiwiki supports inlining full-size
+images by making a [[ikiwiki/WikiLink]] that points to the image, using
+this directive you can easily scale down an image for inclusion onto a page,
+providing a link to a full-size version.
+
+## usage
+
+ \[[!img image1.jpg size="200x200" alt="clouds"]]
+
+The image file will be searched for using the same rules as used to find
+the file pointed to by a [[ikiwiki/WikiLink]].
+
+The `size` parameter is optional, defaulting to full size.
+You can specify only the width or the height, and the other value will
+be calculated based on it: "200x", "x200".
+
+If you specify both the width and height, the original image's aspect
+ratio will be preserved, even if this means making the image smaller
+than the specified size. (However, this is not done for svg images.)
+
+You can also pass `alt`, `title`, `class`, `align`, `id`, `hspace`, and
+`vspace` parameters.
+These are passed through unchanged to the html img tag. If you include a
+`caption` parameter, the caption will be displayed centered beneath the image.
+
+The `link` parameter is used to control whether the scaled image links
+to the full size version. By default it does; set "link=somepage" to link
+to another page instead, or "link=no" to disable the link, or
+"link=http://url" to link to a given url.
+
+The `pagenumber` parameter selects which of multiple images should be rendered;
+this is relevant mainly for GIF and PDF source images.
+
+You can also set default values that will be applied to all later images on
+the page, unless overridden. Useful when including many images on a page.
+
+ \[[!img defaults size=200x200 alt="wedding photo"]]
+ \[[!img photo1.jpg]]
+ \[[!img photo2.jpg]]
+ \[[!img photo3.jpg size=200x600]]
+
+## format support
+
+By default, the `img` directive only supports a few common web formats:
+
+* PNG (`.png`)
+* JPEG (`.jpg` or `.jpeg`)
+* GIF (`.gif`)
+* SVG (`.svg`)
+
+These additional formats can be enabled with the `img_allowed_formats`
+[[!iki setup]] option, but are disabled by default for better
+[[!iki security]]:
+
+* PDF (`.pdf`)
+* `everything` (accepts any file supported by ImageMagick: make sure
+ that only completely trusted users can
+ [[upload attachments|ikiwiki/pagespec/attachment]])
+
+For example, a wiki where only `admin()` users can upload attachments might
+use:
+
+ img_allowed_formats: [png, jpeg, gif, svg, pdf]
+
+[[!meta robots="noindex, follow"]]