Class: Base_layers_class

Base_layers_class

Layers class - manages layers. Each layer is object with various types. You can access layers class globally: window.Layers or document.getElementById('miniPaint').contentWindow.Layers if outside of iframe.

Layer keys:

• id (int)
• link (image)
• parent_id (int)
• name (string)
• type (string)
• x (int)
• y (int)
• width (int)
• height (int)
• width_original (int)
• height_original (int)
• visible (bool)
• opacity (0-100)
• order (int)
• composition (string)
• rotate (int) 0-359
• data (various data here)
• params (object)
• color {hex}
• status (string)
• filters (array)
• render_function (function)

Methods

Method	Arguments	Returns	Comment
render(force=false)	force: force to render now		Renders all layers and preview on next frame
render_object(ctx, object)	ctx: canvas object: layer object		Renders given object on given canvas
insert(settings, can_automate=true)	settings: object of configs can_automate: if additional actions can be applied	Promise	Inserts new layer. Async function.
autoresize(width, height, layer_id, can_automate = true)	width: width height: height layer_id: layer id> can_automate : if allow to resize down		Resize layer based on dimensions, up - always, if 1 layer - down.
get_layer(id)	id: layer id	layer or null	Get layer
delete(id, force)	id: layer id force: force to delete first layer		Removes layer
reset_layers(auto_insert=false)	auto_insert: if true, will create 1 empty layer		removes all layers
toggle_visibility(id)	id: layer id	layer	toggle layer visibility
refresh_gui()			renew layers HTML
select(id)	id: layer id		marks layer as selected
set_opacity(id, value)	id: layer id value: opacity value 0-100		change layer opacity
layer_clear(id)	id: layer id		clear layer data
move(id, direction)	id: layer id direction: if negative - up, else - down		move layer up or down
get_sorted_layers()		array	return sorted layers list (copy)
is_layer_empty(id)	id: layer id	boolean	Checks if layer empty
find_next(id)	id: layer id	layer	Find next layer
find_previous(id)	id: layer id	layer	Find previous layer
get_dimensions()		object	Returns canvas dimensions, width and height
get_world_coords(x, y)	x: x y: y	object	returns global position, for example if canvas is zoomed, it will convert relative mouse position to absolute at 100% zoom.
add_filter(layer_id, name, params)	layer_id: layer id name: filter name params: parameters, object		register new live filter
delete_filter(layer_id, filter_id)	layer_id: layer id filter_id: filter id		delets live filter
convert_layers_to_canvas(ctx, layer_id)	ctx: canvas context layer_id: layer id		exports all layers to canvas for saving
convert_layer_to_canvas(layer_id, actual_area = false, can_trim)	layer_id: layer id actual_area: actual_area used for resized image can_trim: can we trim it?	canvas	exports (active) layer to canvas for saving
update_layer_image(canvas, layer_id)	canvas: canvas layer_id: layer id		updates layer image data