Blend modes (#252)

* Add backend for selecting layer blend mode

* Change dropdown input to support callback on change

* Add debug messages

* Fix canvas update for blend-modes

* Finish up and polish blend modes implementations

* Add changes from code review

Co-authored-by: Keavon Chambers <keavon@keavon.com>
Co-authored-by: Dennis Kobert <dennis@kobert.dev>
This commit is contained in:
George Atkinson
2021-07-23 18:21:07 +01:00
committed by Keavon Chambers
co-authored by Keavon Chambers Dennis Kobert
parent 1da0678dbb
commit d5c9821a02
18 changed files with 348 additions and 69 deletions
@@ -201,9 +201,53 @@ function newSetCanvasRotation(input: any): SetCanvasRotation {
};
}
export enum BlendMode {
Normal = "normal",
Multiply = "multiply",
Darken = "darken",
ColorBurn = "color-burn",
Screen = "screen",
Lighten = "lighten",
ColorDodge = "color-dodge",
Overlay = "overlay",
SoftLight = "soft-light",
HardLight = "hard-light",
Difference = "difference",
Exclusion = "exclusion",
Hue = "hue",
Saturation = "saturation",
Color = "color",
Luminosity = "luminosity",
}
function newBlendMode(input: string): BlendMode {
const blendMode = {
Normal: BlendMode.Normal,
Multiply: BlendMode.Multiply,
Darken: BlendMode.Darken,
ColorBurn: BlendMode.ColorBurn,
Screen: BlendMode.Screen,
Lighten: BlendMode.Lighten,
ColorDodge: BlendMode.ColorDodge,
Overlay: BlendMode.Overlay,
SoftLight: BlendMode.SoftLight,
HardLight: BlendMode.HardLight,
Difference: BlendMode.Difference,
Exclusion: BlendMode.Exclusion,
Hue: BlendMode.Hue,
Saturation: BlendMode.Saturation,
Color: BlendMode.Color,
Luminosity: BlendMode.Luminosity,
}[input];
if (!blendMode) throw new Error(`Invalid blend mode "${blendMode}"`);
return blendMode;
}
export interface LayerPanelEntry {
name: string;
visible: boolean;
blend_mode: BlendMode;
layer_type: LayerType;
path: BigUint64Array;
layer_data: LayerData;
@@ -213,6 +257,7 @@ function newLayerPanelEntry(input: any): LayerPanelEntry {
return {
name: input.name,
visible: input.visible,
blend_mode: newBlendMode(input.blend_mode),
layer_type: newLayerType(input.layer_type),
layer_data: newLayerData(input.layer_data),
path: new BigUint64Array(input.path.map((n: number) => BigInt(n))),