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Graphical User Interface Component Framework for A-Frame VR

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  - interactable.js
  - item.js
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# aframe-gui

A graphical User Interface framework for [A-Frame](https://aframe.io).

![](https://raw.githubusercontent.com/rdub80/aframe-gui/master/examples/images/overview.png)

The `aframe-gui` components provide layout and gui widgets that can be used
to create a user interface in an A-Frame scene.

The `dist/aframe-gui.js` file defines the following components:

| Component             | Primitive                | Description |
| --------------------  | ------------------------ | -------------------------------------------------------  |
| gui-flex-container    | a-gui-flex-container     | Layout container with flexbox-inspired                   |
| gui-item              | <none>                   | Used by other components for common properties like height and width    |
| gui-interactable      | <none>                   | Used by other components to define onclick behavior      |
| gui-cursor            | a-gui-cursor             | Cursor used to interact with GUI elements.               |
| gui-button            | a-gui-button             | Standard button component with text label                |
| gui-icon-button       | a-gui-icon-button        | Button with icon label instead of text                   |
| gui-icon-label-button | a-gui-icon-label-button  | Button with both icon and text labels                    |
| gui-radio             | a-gui-radio              | Radio button                                             |
| gui-toggle            | a-gui-toggle             | Toggle button                                            |
| gui-slider            | a-gui-slider             | Slider component                                         |
| gui-vertical-slider   | a-gui-slider             | Vertical slider component                                |
| gui-input             | a-gui-input              | Text input field                                         |
| gui-label             | a-gui-label              | Text label                                               |
| gui-progress-bar      | a-gui-progress-bar       | Progress bar                                             |
| gui-circle-loader     | a-gui-circle-loader      | Circular progress meter                                  |
| gui-circle-timer      | a-gui-circle-timer       | Circular progress meter with timer                       |

key_orange       | '#ed5b21' |
key_orange_light | '#ef8c60' |
key_grey         | '#22252a' |
key_grey_dark    | '#2c3037' |
key_grey_light   | '#606876' |
key_offwhite     | '#d3d3d4' |
key_white        | '#ffffff' |

## Examples

Examples are available at:

[https://rdub80.github.io/aframe-gui/examples/index.html](https://rdub80.github.io/aframe-gui/examples/index.html)

## Use in your AFrame project

Include the following Javascript in the head of the page containing your AFrame scene:

`https://rawgit.com/rdub80/aframe-gui/master/dist/aframe-gui.min.js`

## Building

Run the following to build to the examples/js folder:

`npm run dist-example`

`npm run dist-example-min`

## Run locally

Run the following start the webpack-dev-server:

`npm start`

The webpack-dev-server should now be running at http://localhost:8080

## Components

### a-gui-flex-container Component
#### Properties

| Property         | Description                                            | Default Value |
| --------         | ----------------------------------------------------   | ------------- |
| flex-direction   | property specifies how flex items are placed in the flex container defining the main axis and the direction: 'row', 'column'                                       | 'row'         |
| justify-content  | property defines distributed space between and around content items along the main axis of their container: 'flexStart','center','flexEnd'                         | 'flexStart'   |
| align-items      | property defines distributed space between and around flex items along the cross-axis of their container. Like justify-content but in the perpendicular direction. | 'flexStart'   |
| item-padding     | Padding between items                                                                                                                                              | 0.0           |
| opacity          | Transparency of the flex-conntainer                                                                                                                                | 0.0           |
| is-top-container | Setting background of the flex-container                                                                                                                           | false         |
| panel-color      | Background color of the flex-container                                                                                                                             | #22252a       |
| panel-rounded    | flex-container panel rounding radius                                                                                                                               | 0.05          |

```html
<a-gui-flex-container 
    flex-direction="column" justify-content="center" align-items="normal" component-padding="0.1" opacity="0.7" width="3.5" height="4.5" 
    panel-color="#072B73" 
    panel-rounded="0.2"
	position="0 2.5 -6" rotation="0 0 0"
>
... gui items here...

</a-gui-flex-container>
```

### a-gui-cursor Component
#### Properties

| Property    | Description                                               | Default Value |
| --------    | -------------------------------------------------------   | ------------- |
| color       | Cursor initial color                                      | #ffffff       |
| hover-color | Cursor hover color                                        | #ffffff       |
| active-color| Cursor selection/active color                             | #ed5b21       |
| distance    | distance of the pointer from the camera                   | -1            |
| design      | choose a design: 'dot', 'ring', 'cross' or 'reticle'      | 'dot'         |

```html
		
		<a-entity id="cameraRig" position="0 1.6 0">
			<a-camera look-controls wasd-controls position="0 0 0">
				<a-gui-cursor id="cursor"
						  raycaster="objects: [gui-interactable]"
						  fuse="true" fuse-timeout="2000"
						  color="#ECEFF1"
						  hover-color="#CFD8DC"
						  active-color="#607D8B"
						  design="ring" > 
				</a-gui-cursor> 
			</a-camera> 
		</a-entity>		
```

#### Example without fuse/gaze trigger (click trigger):

### a-gui-button Component
#### Properties

| Property           | Description                                               | Default Value |
| --------           | -------------------------------------------------------   | ------------- |
| on                 | Event that triggers onclick action                        | click         |
| value              | Text of button label                                      |               |
| font-size          | Font size for button                                      | 0.2           |
| font-family        | Font family for button                                    | ''            |
| font-color         | Text color for button label                               | #d3d3d4       |
| border-color       | Border color of button                                    | #d3d3d4       |
| focus-color        | Focus color of button                                     | #ef8c60       |
| background-color   | Background color of button                                | #22252a       |
| hover-color        | Background color when button is in hover state            | #2c3037       |
| active-color       | Background color when button is pressed down              | #ed5b21       |
| toggle             | If true, button acts as toggle button with on/off state   | false         |
| toggle-state       | Setting the toggle button on/off state                    | false         |

```html
	<a-gui-button
		width="2.5" 
		height="0.7" 
		base-depth="0.025" 
		depth="0.1"
		gap="0.1"

onclick="buttonActionFunction" key-code="32"
		value="Sample Button"
		font-family="assets/fonts/PermanentMarker-Regular.ttf"	
		font-size="0.25"
		margin="0 0 0.05 0"

font-color="black"
		active-color="red"
		hover-color="yellow"
		border-color="white"
		focus-color="black"
		background-color="orange"

bevel="true"
	>
	</a-gui-button>
```

### a-gui-circle-loader Component
#### Properties

| Property           | Description                                               | Default Value |
| --------           | -------------------------------------------------------   | ------------- |
| active-color       | Color of ring that indicates loading progress             | #ed5b21       |
| background-color   | Background color of item                                  | #22252a       |
| loaded             | Initial percentage progress value                         | 0.5           |
| font-color         | Text color for progress percentage text                   | #d3d3d4       |
| font-family        | Font family for progress percentage text                  | ''            |
| font-size          | Font size for progress percentage text                    | 0.2           |
| height             | Height of item                                            | 1             |
| width              | Width of item                                             | 1             |
| margin             | Margin around item                                        | 0 0 0 0       |

```html
	<a-gui-circle-loader
		height="0.75"
		font-family="assets/fonts/Plaster-Regular.ttf"					
		font-size="0.2"
		loaded="0.3456"		
		margin="0 0 0.1 0"
		background-color="#999"
	>
	</a-gui-circle-loader>	
```

### a-gui-circle-timer Component
#### Properties

| Property           | Description                                               | Default Value |
| --------           | -------------------------------------------------------   | ------------- |
| font-size          | Font size for countdown text                              | 0.2           |
| font-family        | Font family for progress countdown text                   | ''            |
| font-color         | Text color for progress countdown text                    | #d3d3d4       |
| border-color       | Color of indicators that show 25/50/75/100 progress       | #22252a       |
| background-color   | Background color of item                                  | #22252a       |
| active-color       | Color of ring that indicates countdown progress           | #ed5b21       |

```html
<a-gui-circle-timer
	height="0.75"
	count-down="60"
	callback="timedout"
	font-family="assets/fonts/PermanentMarker-Regular.ttf"				
	margin="0 0 0.1 0"
>
</a-gui-circle-timer>
```

### a-gui-icon-button Component
#### Properties

```html
<a-gui-icon-button
	height="0.75"
	onclick="buttonActionFunction" key-code="32"
	icon="f09b"
	icon-font="assets/fonts/fa-brands-400.ttf"
	margin="0 0 0.05 0"
>
</a-gui-icon-button>
```

### a-gui-icon-label-button Component
#### Properties

| Property         | Description                                            | Default Value |
| --------         | ----------------------------------------------------   | ------------- |
| on               | Event that triggers onclick action                     | click         |

```html
<a-gui-icon-label-button
	width="2.5" height="0.75"
	onclick="buttonActionFunction"
	icon="f2b9"
	icon-font="assets/fonts/fa-solid-900.ttf"
	value="icon label"
	font-family="assets/fonts/PressStart2P-Regular.ttf"
	font-size="0.16"
	margin="0 0 0.05 0"
>
</a-gui-icon-label-button>
```

### a-gui-input Component
#### Properties

| Property           | Description                                           | Default Value  |
| --------           | ----------------------------------------------------  | -------------  |
| onclick            | Function to call on click event                       |                |
| onhover            | Function to call on hover event                       |                |
| value              | Input text value                                      |                |

```html
<a-gui-input
	width="2.5" height="0.75"
	onclick="inputActionFunction"
	font-family="assets/fonts/PermanentMarker-Regular.ttf"	
	font-size="0.2"
	value="Hello Wor_"
	margin="0 0 0.05 0"
>
</a-gui-input>
```

### a-gui-label Component
#### Properties

| Property         | Description                                             | Default Value  |
| --------         | ------------------------------------------------------- | -------------  |
| value            |  			                                             | ''             |
| align            | text-align: 'left','center','right' 		             | 'center'       |
| anchor           | text anchor position: 'left','center','right' 	         | 'center'       |
| lineHeight       | line-height of the label                                | 0.2            |
| font-size        | Font size for input                                     | 0.2            |
| font-family      | Font family for input                                   | ''             |
| font-color       | Text input color                                        | #2c3037        |
| background-color | Background color of label                               | #d3d3d4        |

```html
<a-gui-label
	width="2.5" height="0.75"
	value="test label"
	font-family="assets/fonts/DiplomataSC-Regular.ttf"
	font-size="0.35"
	line-height="0.8"
	letter-spacing="0"
	margin="0 0 0.05 0"
>
</a-gui-label>
```

### a-gui-progress-bar Component
#### Properties

| Property         | Description                                               | Default Value |
| --------         | -------------------------------------------------------   | ------------- |
| background-color | Background color of progress bar                          | #22252a       |
| active-color     | Color for indicating progress level                       | #ed5b21       |
| height           | Height of item                                            | 1             |
| width            | Width of item                                             | 1             |
| margin           | Margin around item                                        | 0 0 0 0       |

```html
<a-gui-progressbar 
	width="2.5" height="0.25"
	margin="0 0 0.05 0"
>
</a-gui-progressbar>
```

### a-gui-radio Component
#### Properties

| Property         | Description                                               | Default Value  |
| --------         | -------------------------------------------------------   | -------------- |
| on               | Event that triggers onclick action                        | click          |
| checked          |                                                           | false          |
| active           |                                                           | true           |
| toggle           | Toggle status                                             | false          |
| toggle-state     | Setting the radio button on/off state                     | false          |

```html
<a-gui-radio
	width="2.5" height="0.75"
	onclick="toggleActionFunction"
	value="radio label"
	font-size="0.3"
	margin="0 0 0.05 0"
>
</a-gui-radio>
```

### a-gui-slider Component
#### Properties

```html
<a-gui-slider 	
	width="2.5" height="0.75"
	onclick="slideActionFunction"
	percent="0.29"
	margin="0 0 0.05 0"
>
</a-gui-slider>
```

### a-gui-toggle Component
#### Properties

| Property         | Description                                               | Default Value  |
| --------         | -------------------------------------------------------   | -------------- |
| on               | Event that triggers onclick action                        | click          |
| checked          |                                                           | false          |
| active           |                                                           | false          |
| toggle           | Toggle status                                             | false          |
| toggle-state     | Setting the toggle toggle button on/off state             | false          |

```html
<a-gui-toggle
	width="2.5" height="0.75"
	onclick="testToggleAction"
	value="toggle label"
	font-family="assets/fonts/Plaster-Regular.ttf"
	font-size="0.2"
	margin="0 0 0.05 0"
>
</a-gui-toggle>
```

### a-gui-vertical-slider Component
#### Properties

| Property            | Description                                               | Default Value  |
| --------            | -------------------------------------------------------   | -------------  |
| active-color        |                                                           | #ed5b21        |
| background-color    |                                                           | #d3d3d4        |
| border-color        |                                                           | #22252a        |
| handle-color        |                                                           | #ffffff        |
| handle-outer-radius |                                                           | 0.17           |
| handle-inner-radius |                                                           | 0.13           |
| handle-outer-depth  |                                                           | 0.04           |
| handle-inner-depth  |                                                           | 0.02           |
| hover-color         |                                                           | #606876        |
| hover-font-size     | Font size of label indicating where user is hovering      | 0.2            |
| hover-height        |  Height of label indicating where user is hovering        | 1.0            |
| hover-margin        |  Margin of label indicating where user is hovering        | 1.0            |
| hover-percent       | Current percentage where user is hovering                 |                |
| hover-width         | Width of label indicating where user is hovering          | 1.0            |
| left-right-padding  |                                                           | 0.25           |
| margin              | Margin around item                                        | '0 0 0 0'      |
| onclick             | Javascript function to execute on click                   |                |
| onhover             | Javascript function to execute on click                   |                |
| opacity             | Transparency of the vertical slider background            | 1.0            |
| output-font-size    |  Font size of label indicating output value               | 0.2            |
| output-function     |  Name of function to calculate output value from percent  |                |
| output-height       |   Height of label indicating output value                 | 1.0            |
| output-margin       |  Margin of label indicating output value                  | '0 0 0 0'      |
| output-width        |  Width of label indicating output value                   | 1.0            |
| percent             |  Current selected slider value, from 0.0 to 1.0           | 0.5            |
| slider-bar-depth    |                                                           | 0.03           |
| slider-bar-height   |                                                           | 0.05           |
| top-bottom-padding  |                                                           | 0.125          |
| height              | Height of item                                            | 1              |
| width               | Width of item                                             | 1              |

```html
<a-gui-slider 	
	width="2.5" height="0.75"
	onclick="slideActionFunction"
	percent="0.29"
	margin="0 0 0.05 0"
>
</a-gui-slider>
```

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