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Co-Authored-By: kotte <14197736+mrtamagotchi@users.noreply.github.com> Co-Authored-By: mikaeltellhed <2311083+mikaeltellhed@users.noreply.github.com> Co-Authored-By: Tore Knudsen <18231882+torekndsn@users.noreply.github.com> Co-Authored-By: Michael Cartner <32543275+michaelcartner@users.noreply.github.com>
115 lines
9.4 KiB
Markdown
115 lines
9.4 KiB
Markdown
---
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hide_title: true
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hide_table_of_contents: true
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title: Drag
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---
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<##head##>
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# Drag
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The drag node is used to make visual nodes draggable with the mouse or touch. The child of a **Drag** node automatically become draggable.
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:::tip
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The Drag node can only have one child, but that child can have many children.
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:::
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<div className="ndl-image-with-background l">
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</div>
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<##head##>
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## Inputs
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### Snap To Position X
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| Signal | Description |
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| -------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------- |
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| <span className="ndl-signal">Do</span> | Send a signal here to trigger a snap to the position specified by _Value_ and with the transition duration specified by _Duration_. |
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| Data | Description |
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| ------------------------------------------ | -------------------------------------------------------------------------------- |
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| <span className="ndl-data">Value</span> | This is the X value the the snap action will have as destination when triggered. |
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| <span className="ndl-data">Duration</span> | The snap transition duration. |
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### Snap To Position Y
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| Signal | Description |
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| -------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------- |
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| <span className="ndl-signal">Do</span> | Send a signal here to trigger a snap to the position specified by _Value_ and with the transition duration specified by _Duration_. |
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| Data | Description |
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| ------------------------------------------ | -------------------------------------------------------------------------------- |
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| <span className="ndl-data">Value</span> | This is the Y value the the snap action will have as destination when triggered. |
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| <span className="ndl-data">Duration</span> | The snap transition duration. |
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### Drag
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| Data | Description |
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| ----------------------------------------------------- | ----------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| <span className="ndl-data">Enable</span> | Enables or disables this node. If it is disabled, drag will not have any affect on child nodes. |
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| <span className="ndl-data">Axis</span> | Specifies along which axes the drag will work<br/>a<br/>`X`: Only horizontal drag is enabled.<br/>`Y`: Only vertical drag is enabled.<br/>`Both`: Both horizontal and vertical drag is enabled. |
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| <span className="ndl-data">Constrain to parent</span> | If enabled the child nodes being dragged will be constrained to the borders of the parent node so they cannot be dragged outside of the parent bounds. |
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### Other
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| Data | Description |
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| ---------------------------------------------- | ---------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| <span className="ndl-data">Start Drag X</span> | Specifies the X position that will be used as the starting point. Setting this will force the child nodes to the specified position. |
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| <span className="ndl-data">Start Drag Y</span> | Specifies the Y position that will be used as the starting point. Setting this will force the child nodes to the specified position. |
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| <span className="ndl-data">Scale</span> | Specifies the move scale that will be used when dragging the node around. This can correct the drag deltas while you are zoomed in or out. |
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| <span className="ndl-data">Mounted</span> | This property is used to completely remove the node from the DOM. If this property is set to false the node is removed from the DOM. It differs from the _Visible_ property where the node is still part of the DOM but invisible. |
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### Visual
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This node supports the following [Visual Input Properties](/nodes/shared-props/inputs/visual-input-properties):
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- [Advanced HTML](/nodes/shared-props/inputs/visual-input-properties#advanced-html)
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## Outputs
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### Other
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| Data | Description |
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| --------------------------------------------- | ------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------- |
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| <span className="ndl-data">Child Index</span> | The place this node has in relation to its parent. E.g. if a **Group** has three children, then the first child will have _Child Index_ 0, the second child will have _Child Index_ 1, and so on. |
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| <span className="ndl-data">This</span> | A reference to this node. Used in custom **Javascript** nodes and more. |
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### Bounding Box
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| Data | Description |
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| --------------------------------------------------- | ----------------------------------------------------- |
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| <span className="ndl-data">Screen Position X</span> | Where this node is on the screen's X-axis, in pixels. |
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| <span className="ndl-data">Screen Position Y</span> | Where this node is on the screen's Y-axis, in pixels. |
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| <span className="ndl-data">Width</span> | Current width of this node. |
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| <span className="ndl-data">Height</span> | Current height of this node. |
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### Mounted
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| Signal | Description |
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| ------------------------------------------------ | ---------------------------------------------------------------------------------------------------- |
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| <span className="ndl-signal">Did Mount</span> | Signal sent when this node has been mounted, i.e. has become part of the visual tree and is visible. |
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| <span className="ndl-signal">Will Unmount</span> | Signal sent when this node is about to be removed from the visual tree and become hidden. |
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### Signals
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| Signal | Description |
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| ------------------------------------------------ | ---------------------------------------------------------- |
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| <span className="ndl-signal">Drag Started</span> | Emitted when dragging of a child is detected. |
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| <span className="ndl-signal">Drag Ended</span> | Emitted when dragging stopped. |
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| <span className="ndl-signal">Drag Moved</span> | Emitted while a child node is being moved during the drag. |
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### Values
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| Data | Description |
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| ----------------------------------------- | ---------------------------------------------------------------------------------------------------- |
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| <span className="ndl-data">Drag X</span> | The current X position of the dragged node. |
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| <span className="ndl-data">Drag Y</span> | The current Y position of the dragged node. |
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| <span className="ndl-data">Delta X</span> | The horizontal distance a node has been dragged from its last horizontal position. Measured in `px`. |
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| <span className="ndl-data">Delta Y</span> | The vertical distance a node has been dragged from its last vertical position. Measured in `px`. |
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