BMatesTimeline
Timeline is a class that represents the timeline for audio editing. It visually displays the audio tracks and allows users to interact with them, such as selecting, dragging, and adjusting their positions.
Related: Node
Properties
name: string
The name of the Timeline. The default value is 'Timeline'.
style: EditorStyleType
Contains the style settings for the Timeline.
_timeEnd: number
The end time of the timeline, indicating how long the timeline extends.
_scrollX: number
The current horizontal scroll position of the timeline.
posY: number
The vertical position of the timeline on the canvas.
Constructor
constructor(style: EditorStyleType, _timeEnd: number, _scrollX: number, posY: number = 30)
style: EditorStyleType
The style settings for the Timeline.
_timeEnd: number
The end time of the timeline.
_scrollX: number
The initial horizontal scroll position.
posY: number (optional)
The vertical position of the timeline.
Methods
update (dT)
Updates the state of the Timeline.
| Name | Type | Description |
|---|---|---|
| dT | number | Delta time |
draw (ctx)
Draws the Timeline on the canvas.
| Name | Type | Description |
|---|---|---|
| ctx | CanvasRenderingContext2D | The rendering context for the drawing surface |
_drawTime (ctx)
Draws the time indicators on the Timeline.
| Name | Type | Description |
|---|---|---|
| ctx | CanvasRenderingContext2D | The rendering context for the drawing surface |
set scrollX (value)
Sets the horizontal scroll position of the Timeline.
| Name | Type | Description |
|---|---|---|
| value | number | The new horizontal scroll position. |
get scrollX ()
Returns the current horizontal scroll position of the Timeline.
- Return:
number