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33 lines
1.3 KiB
Plaintext
33 lines
1.3 KiB
Plaintext
title: ImageWidget
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created: 20140416160234142
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modified: 20140820100234142
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tags: Widgets
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caption: image
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! Introduction
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The image widget displays images that can be specified as a remote URL or the title of a local tiddler containing the image.
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! Content and Attributes
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Any content of the `<$image>` widget is ignored.
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|!Attribute |!Description |
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|source |The URL of the image, or the title of an image tiddler |
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|width |The width of the image |
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|height |The height of the image |
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|tooltip |The tooltip to be displayed over the image |
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|alt |The alternative text to be associated with the image |
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|class |CSS classes to be assigned to the `<img>` element |
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The width and the height can be specified as pixel values (eg "23" or "23px") or percentages (eg "23%"). They are both optional; if not provided the browser will use CSS rules to size the image.
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! External Images and the ''_canonical_uri'' field
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When used to display tiddler-based images, the image widget operates in two distinct modes:
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* If the ''_canonical_uri'' field is present then it is used as the ''src'' attribute of the generated `<img>` element and the ''text'' field is ignored
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* Without the ''_canonical_uri'' field, the image widget generates an `<img>` element that embeds the image data directly using a `data:` URI.
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See ExternalImages for more details.
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