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:
| Name | Description |
|---|---|
| param | Name of the operation to be executed, see below for a list of possible operations |
| {any other params} | Any other parameters are made available as variables within the context of the widget message. |
The tm-edit-bitmap-operation message is usually generated by a ButtonWidget or an ActionWidget and is handled by the surrounding bitmap editor.
Bitmap Operations
At this point the following bitmap operations have been implemented:
| Name | Description | ||||||
|---|---|---|---|---|---|---|---|
| resize | Resizes the image to the specified width and height. Parameters include:
| ||||||
| clear | Clears the contents of the image and fills it with a solid colour. Parameters include:
|
Example
An example can be seen in $:/core/ui/EditorToolbar/size-dropdown:
<$button>
<$action-sendmessage
$message="tm-edit-bitmap-operation"
$param="resize"
width={{$config-title$/new-width}}
height={{$config-title$/new-height}}
/>
...
Resize
</$button>