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* Move tiddler 'thumbnail Macro (Examples)' to directory 'macros/examples' * Replace '_' to space in tw5.com edition
69 lines
1.8 KiB
Plaintext
69 lines
1.8 KiB
Plaintext
caption: tm-edit-bitmap-operation
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created: 20160424204236050
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modified: 20160424215219517
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tags: Messages
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title: WidgetMessage: tm-edit-bitmap-operation
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type: text/vnd.tiddlywiki
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\define resizeDescription()
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<div>
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Resizes the image to the specified width and height. Parameters include:
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|!Name |!Description |
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|width |Specifies the width the image is resized to |
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|height |Specifies the height the image is resized to |
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</div>
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\end
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\define clearDescription()
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<div>
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Clears the contents of the image and fills it with a solid colour. Parameters include:
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|!Name |!Description |
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|colour |Colour the image should be filled with, defaults to <<.value "White">> |
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<<.tip "The colour field can take any normal CSS colour value, including the hexadecimal representation or the RGB format.">>
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</div>
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\end
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A `tm-edit-bitmap-operation` invokes one of the available operations on a __surrounding__ bitmap editor. Therefore the message has to be dispatched within the editor in order for it to catch it. The following properties on the `event` object are required:
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|!Name |!Description |
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|param |Name of the operation to be executed, see ''below'' for a list of possible operations |
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|paramObject| Hashmap of additional parameters required by the operation top be executed |
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The `tm-edit-bitmap-operation` message is usually generated by a ButtonWidget or an ActionWidget and is handled by the surrounding bitmap editor.
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! Bitmap Operations
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At this point the following bitmap operations have been implemented:
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|!Name |!Description |
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|<<.def "resize">>|<<resizeDescription>> |
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|<<.def "clear">>|<<clearDescription>> |
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!Example
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An example can be seen in [[$:/core/ui/EditorToolbar/size-dropdown]]:
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```
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<$button>
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<$action-sendmessage
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$message="tm-edit-bitmap-operation"
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$param="resize"
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width={{$config-title$/new-width}}
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height={{$config-title$/new-height}}
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/>
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...
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Resize
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</$button>
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```
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