HumanBreak/src/core/render/preset/graphics.ts
2024-12-26 18:16:59 +08:00

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import { MotaOffscreenCanvas2D } from '@/core/fx/canvas2d';
import { ERenderItemEvent, RenderItem, RenderItemPosition } from '../item';
import { Transform } from '../transform';
import { ElementNamespace, ComponentInternalInstance } from 'vue';
import { isNil } from 'lodash-es';
/*
* Expected usage (this comment needs to be deleted after implementing correctly):
* <rect x={10} y={30} width={50} height={30} fill stroke /> <!-- 表现为先填充,后描边 -->
* <circle x={10} y={50} radius={10} start={Math.PI / 2} end={Math.PI} stroke /> <!-- 表现为仅描边 -->
* <ellipse x={100} y={50} radiusX={10} radiusY={50} strokeAndFill /> <!-- 表现为先描边后填充 -->
* <rect x={100} y={50} width={50} height={30} fill /> <!-- 表现为仅填充 -->
* <rect x={100} y={50} width={50} height={30} /> <!-- 表现为仅填充 -->
* Line BezierCurve QuadraticCurve 无法设置填充属性,如设置则无效
*/
export interface ILineProperty {
/** 线宽 */
lineWidth: number;
/** 线的虚线设置 */
lineDash?: number[];
/** 虚线偏移量 */
lineDashOffset?: number;
/** 线的连接样式 */
lineJoin: CanvasLineJoin;
/** 线的顶端样式 */
lineCap: CanvasLineCap;
/** 线的斜接限制当连接为miter类型时可填默认为10 */
miterLimit: number;
}
export interface IGraphicProperty extends ILineProperty {
/** 渲染模式,参考 {@link GraphicMode} */
mode: GraphicMode;
/** 填充样式 */
fill: CanvasStyle;
/** 描边样式 */
stroke: CanvasStyle;
/** 填充算法 */
fillRule: CanvasFillRule;
}
export const enum GraphicMode {
/** 仅填充 */
Fill,
/** 仅描边 */
Stroke,
/** 先填充,然后描边 */
FillAndStroke,
/** 先描边,然后填充 */
StrokeAndFill
}
const enum GraphicModeProp {
Fill,
Stroke,
StrokeAndFill
}
export interface EGraphicItemEvent extends ERenderItemEvent {}
export abstract class GraphicItemBase
extends RenderItem<EGraphicItemEvent>
implements Required<ILineProperty>
{
mode: number = GraphicMode.Fill;
fill: CanvasStyle = '#fff';
stroke: CanvasStyle = '#fff';
lineWidth: number = 2;
lineDash: number[] = [];
lineDashOffset: number = 0;
lineJoin: CanvasLineJoin = 'bevel';
lineCap: CanvasLineCap = 'butt';
miterLimit: number = 10;
fillRule: CanvasFillRule = 'nonzero';
private propFill: boolean = true;
private propStroke: boolean = false;
private strokeAndFill: boolean = false;
private propFillSet: boolean = false;
/**
* 设置描边绘制的信息
* @param options 线的信息
*/
setLineOption(options: Partial<ILineProperty>) {
if (!isNil(options.lineWidth)) this.lineWidth = options.lineWidth;
if (!isNil(options.lineDash)) this.lineDash = options.lineDash;
if (!isNil(options.lineDashOffset))
this.lineDashOffset = options.lineDashOffset;
if (!isNil(options.lineJoin)) this.lineJoin = options.lineJoin;
if (!isNil(options.lineCap)) this.lineCap = options.lineCap;
if (!isNil(options.miterLimit)) this.miterLimit = options.miterLimit;
this.update();
}
/**
* 设置填充样式
* @param style 绘制样式
*/
setFillStyle(style: CanvasStyle) {
this.fill = style;
this.update();
}
/**
* 设置描边样式
* @param style 绘制样式
*/
setStrokeStyle(style: CanvasStyle) {
this.stroke = style;
this.update();
}
/**
* 设置填充原则
* @param rule 填充原则
*/
setFillRule(rule: CanvasFillRule) {
this.fillRule = rule;
this.update();
}
/**
* 设置绘制模式,是描边还是填充
* @param mode 绘制模式
*/
setMode(mode: GraphicMode) {
this.mode = mode;
this.update();
}
/**
* 检查渲染模式,参考 {@link GraphicPropsBase} 中的 fill stroke strokeAndFill 属性
*/
private checkMode(mode: GraphicModeProp, value: boolean) {
switch (mode) {
case GraphicModeProp.Fill:
this.propFill = value;
this.propFillSet = true;
break;
case GraphicModeProp.Stroke:
this.propStroke = value;
break;
case GraphicModeProp.StrokeAndFill:
this.strokeAndFill = value;
break;
}
if (this.strokeAndFill) {
this.mode = GraphicMode.StrokeAndFill;
} else {
if (!this.propFillSet) {
if (this.propStroke) {
this.mode = GraphicMode.Stroke;
} else {
this.mode = GraphicMode.Fill;
}
} else {
if (this.propFill && this.propStroke) {
this.mode = GraphicMode.FillAndStroke;
} else if (this.propFill) {
this.mode = GraphicMode.Fill;
} else if (this.propStroke) {
this.mode = GraphicMode.Stroke;
} else {
this.mode = GraphicMode.Fill;
}
}
}
this.update();
}
/**
* 设置画布的渲染状态,在实际渲染前调用
* @param canvas 要设置的画布
*/
protected setCanvasState(canvas: MotaOffscreenCanvas2D) {
const ctx = canvas.ctx;
ctx.fillStyle = this.fill;
ctx.strokeStyle = this.stroke;
ctx.lineWidth = this.lineWidth;
ctx.setLineDash(this.lineDash);
ctx.lineDashOffset = this.lineDashOffset;
ctx.lineJoin = this.lineJoin;
ctx.lineCap = this.lineCap;
ctx.miterLimit = this.miterLimit;
ctx.fill(this.fillRule);
this.update();
}
patchProp(
key: string,
prevValue: any,
nextValue: any,
namespace?: ElementNamespace,
parentComponent?: ComponentInternalInstance | null
): void {
if (isNil(prevValue) && isNil(nextValue)) return;
switch (key) {
case 'fill':
if (!this.assertType(nextValue, 'number', key)) return;
this.checkMode(GraphicModeProp.Fill, nextValue);
break;
case 'stroke':
if (!this.assertType(nextValue, 'number', key)) return;
this.checkMode(GraphicModeProp.Stroke, nextValue);
break;
case 'strokeAndFill':
if (!this.assertType(nextValue, 'number', key)) return;
this.checkMode(GraphicModeProp.StrokeAndFill, nextValue);
break;
case 'fillRule':
if (!this.assertType(nextValue, 'string', key)) return;
this.setFillRule(nextValue);
break;
case 'fillStyle':
this.setFillStyle(nextValue);
break;
case 'strokeStyle':
this.setStrokeStyle(nextValue);
break;
case 'lineWidth':
if (!this.assertType(nextValue, 'number', key)) return;
this.lineWidth = nextValue;
this.update();
break;
case 'lineDash':
if (!this.assertType(nextValue, Array, key)) return;
this.lineDash = nextValue;
this.update();
break;
case 'lineDashOffset':
if (!this.assertType(nextValue, 'number', key)) return;
this.lineDashOffset = nextValue;
this.update();
break;
case 'lineJoin':
if (!this.assertType(nextValue, 'string', key)) return;
this.lineJoin = nextValue;
this.update();
break;
case 'lineCap':
if (!this.assertType(nextValue, 'string', key)) return;
this.lineCap = nextValue;
this.update();
break;
case 'miterLimit':
if (!this.assertType(nextValue, 'number', key)) return;
this.miterLimit = nextValue;
this.update();
break;
}
super.patchProp(key, prevValue, nextValue, namespace, parentComponent);
}
}
export class Rect extends GraphicItemBase {
protected render(
canvas: MotaOffscreenCanvas2D,
transform: Transform
): void {
const ctx = canvas.ctx;
this.setCanvasState(canvas);
ctx.beginPath();
ctx.rect(this.x, this.y, this.width, this.height);
switch (this.mode) {
case GraphicMode.Fill:
ctx.fill(this.fillRule);
break;
case GraphicMode.Stroke:
ctx.stroke();
break;
case GraphicMode.FillAndStroke:
ctx.fill(this.fillRule);
ctx.stroke();
break;
case GraphicMode.StrokeAndFill:
ctx.stroke();
ctx.fill(this.fillRule);
break;
}
}
}
export class Circle extends GraphicItemBase {
radius: number = 10;
start: number = 0;
end: number = Math.PI * 2;
protected render(
canvas: MotaOffscreenCanvas2D,
transform: Transform
): void {
const ctx = canvas.ctx;
this.setCanvasState(canvas);
ctx.beginPath();
ctx.arc(this.x, this.y, this.radius, this.start, this.end);
switch (this.mode) {
case GraphicMode.Fill:
ctx.fill(this.fillRule);
break;
case GraphicMode.Stroke:
ctx.stroke();
break;
case GraphicMode.FillAndStroke:
ctx.fill(this.fillRule);
ctx.stroke();
break;
case GraphicMode.StrokeAndFill:
ctx.stroke();
ctx.fill(this.fillRule);
break;
}
}
/**
* 设置圆的半径
* @param radius 半径
*/
setRadius(radius: number) {
this.radius = radius;
this.size(radius * 2, radius * 2);
this.update();
}
/**
* 设置圆的起始与终止角度
* @param start 起始角度
* @param end 终止角度
*/
setAngle(start: number, end: number) {
this.start = start;
this.end = end;
this.update();
}
patchProp(
key: string,
prevValue: any,
nextValue: any,
namespace?: ElementNamespace,
parentComponent?: ComponentInternalInstance | null
): void {
switch (key) {
case 'radius':
if (!this.assertType(nextValue, 'number', key)) return;
this.setRadius(nextValue);
return;
case 'start':
if (!this.assertType(nextValue, 'number', key)) return;
this.setAngle(nextValue, this.end);
return;
case 'end':
if (!this.assertType(nextValue, 'number', key)) return;
this.setAngle(this.start, nextValue);
return;
}
super.patchProp(key, prevValue, nextValue, namespace, parentComponent);
}
}
export class Ellipse extends GraphicItemBase {
radiusX: number = 10;
radiusY: number = 10;
start: number = 0;
end: number = Math.PI * 2;
protected render(
canvas: MotaOffscreenCanvas2D,
transform: Transform
): void {
const ctx = canvas.ctx;
this.setCanvasState(canvas);
ctx.beginPath();
ctx.ellipse(
this.x,
this.y,
this.radiusX,
this.radiusY,
0,
this.start,
this.end
);
switch (this.mode) {
case GraphicMode.Fill:
ctx.fill(this.fillRule);
break;
case GraphicMode.Stroke:
ctx.stroke();
break;
case GraphicMode.FillAndStroke:
ctx.fill(this.fillRule);
ctx.stroke();
break;
case GraphicMode.StrokeAndFill:
ctx.stroke();
ctx.fill(this.fillRule);
break;
}
}
/**
* 设置椭圆的横纵轴长度
* @param x 横轴长度
* @param y 纵轴长度
*/
setRadius(x: number, y: number) {
this.radiusX = x;
this.radiusY = y;
this.update();
}
/**
* 设置椭圆的起始与终止角度
* @param start 起始角度
* @param end 终止角度
*/
setAngle(start: number, end: number) {
this.start = start;
this.end = end;
this.update();
}
patchProp(
key: string,
prevValue: any,
nextValue: any,
namespace?: ElementNamespace,
parentComponent?: ComponentInternalInstance | null
): void {
switch (key) {
case 'radiusX':
if (!this.assertType(nextValue, 'number', key)) return;
this.setRadius(nextValue, this.radiusY);
return;
case 'radiusY':
if (!this.assertType(nextValue, 'number', key)) return;
this.setRadius(this.radiusY, nextValue);
return;
case 'start':
if (!this.assertType(nextValue, 'number', key)) return;
this.setAngle(nextValue, this.end);
return;
case 'end':
if (!this.assertType(nextValue, 'number', key)) return;
this.setAngle(this.start, nextValue);
return;
}
super.patchProp(key, prevValue, nextValue, namespace, parentComponent);
}
}
export class Line extends GraphicItemBase {
x1: number = 0;
y1: number = 0;
x2: number = 0;
y2: number = 0;
protected render(
canvas: MotaOffscreenCanvas2D,
transform: Transform
): void {
const ctx = canvas.ctx;
this.setCanvasState(canvas);
ctx.beginPath();
ctx.moveTo(this.x1, this.y1);
ctx.lineTo(this.x2, this.y2);
ctx.stroke();
}
/**
* 设置第一个点的横纵坐标
*/
setPoint1(x: number, y: number) {
this.x1 = x;
this.y1 = y;
this.update();
}
/**
* 设置第二个点的横纵坐标
*/
setPoint2(x: number, y: number) {
this.x2 = x;
this.y2 = y;
this.update();
}
patchProp(
key: string,
prevValue: any,
nextValue: any,
namespace?: ElementNamespace,
parentComponent?: ComponentInternalInstance | null
): void {
switch (key) {
case 'x1':
if (!this.assertType(nextValue, 'number', key)) return;
this.setPoint1(nextValue, this.y1);
return;
case 'y1':
if (!this.assertType(nextValue, 'number', key)) return;
this.setPoint1(this.x1, nextValue);
return;
case 'x2':
if (!this.assertType(nextValue, 'number', key)) return;
this.setPoint2(nextValue, this.y2);
return;
case 'y2':
if (!this.assertType(nextValue, 'number', key)) return;
this.setPoint2(this.x2, nextValue);
return;
}
super.patchProp(key, prevValue, nextValue, namespace, parentComponent);
}
}
export class BezierCurve extends GraphicItemBase {
sx: number = 0;
sy: number = 0;
cp1x: number = 0;
cp1y: number = 0;
cp2x: number = 0;
cp2y: number = 0;
ex: number = 0;
ey: number = 0;
protected render(
canvas: MotaOffscreenCanvas2D,
transform: Transform
): void {
const ctx = canvas.ctx;
this.setCanvasState(canvas);
ctx.beginPath();
ctx.moveTo(this.sx, this.sy);
ctx.bezierCurveTo(
this.cp1x,
this.cp1y,
this.cp2x,
this.cp2y,
this.ex,
this.ey
);
ctx.stroke();
}
/**
* 设置起始点坐标
*/
setStart(x: number, y: number) {
this.sx = x;
this.sy = y;
this.update();
}
/**
* 设置控制点1坐标
*/
setControl1(x: number, y: number) {
this.cp1x = x;
this.cp1y = y;
this.update();
}
/**
* 设置控制点2坐标
*/
setControl2(x: number, y: number) {
this.cp2x = x;
this.cp2y = y;
this.update();
}
/**
* 设置终点坐标
*/
setEnd(x: number, y: number) {
this.ex = x;
this.ey = y;
this.update();
}
patchProp(
key: string,
prevValue: any,
nextValue: any,
namespace?: ElementNamespace,
parentComponent?: ComponentInternalInstance | null
): void {
switch (key) {
case 'sx':
if (!this.assertType(nextValue, 'number', key)) return;
this.setStart(nextValue, this.sy);
return;
case 'sy':
if (!this.assertType(nextValue, 'number', key)) return;
this.setStart(this.sx, nextValue);
return;
case 'cp1x':
if (!this.assertType(nextValue, 'number', key)) return;
this.setControl1(nextValue, this.cp1y);
return;
case 'cp1y':
if (!this.assertType(nextValue, 'number', key)) return;
this.setControl1(this.cp1x, nextValue);
return;
case 'cp2x':
if (!this.assertType(nextValue, 'number', key)) return;
this.setControl2(nextValue, this.cp2y);
return;
case 'cp2y':
if (!this.assertType(nextValue, 'number', key)) return;
this.setControl2(this.cp2x, nextValue);
return;
case 'ex':
if (!this.assertType(nextValue, 'number', key)) return;
this.setEnd(nextValue, this.ey);
return;
case 'ey':
if (!this.assertType(nextValue, 'number', key)) return;
this.setEnd(this.ex, nextValue);
return;
}
super.patchProp(key, prevValue, nextValue, namespace, parentComponent);
}
}
export class QuadraticCurve extends GraphicItemBase {
sx: number = 0;
sy: number = 0;
cpx: number = 0;
cpy: number = 0;
ex: number = 0;
ey: number = 0;
protected render(
canvas: MotaOffscreenCanvas2D,
transform: Transform
): void {
const ctx = canvas.ctx;
this.setCanvasState(canvas);
ctx.beginPath();
ctx.moveTo(this.sx, this.sy);
ctx.quadraticCurveTo(this.cpx, this.cpy, this.ex, this.ey);
ctx.stroke();
}
/**
* 设置起始点坐标
*/
setStart(x: number, y: number) {
this.sx = x;
this.sy = y;
this.update();
}
/**
* 设置控制点坐标
*/
setControl(x: number, y: number) {
this.cpx = x;
this.cpy = y;
this.update();
}
/**
* 设置终点坐标
*/
setEnd(x: number, y: number) {
this.ex = x;
this.ey = y;
this.update();
}
patchProp(
key: string,
prevValue: any,
nextValue: any,
namespace?: ElementNamespace,
parentComponent?: ComponentInternalInstance | null
): void {
switch (key) {
case 'sx':
if (!this.assertType(nextValue, 'number', key)) return;
this.setStart(nextValue, this.sy);
return;
case 'sy':
if (!this.assertType(nextValue, 'number', key)) return;
this.setStart(this.sx, nextValue);
return;
case 'cpx':
if (!this.assertType(nextValue, 'number', key)) return;
this.setControl(nextValue, this.cpy);
return;
case 'cpy':
if (!this.assertType(nextValue, 'number', key)) return;
this.setControl(this.cpx, nextValue);
return;
case 'ex':
if (!this.assertType(nextValue, 'number', key)) return;
this.setEnd(nextValue, this.ey);
return;
case 'ey':
if (!this.assertType(nextValue, 'number', key)) return;
this.setEnd(this.ex, nextValue);
return;
}
super.patchProp(key, prevValue, nextValue, namespace, parentComponent);
}
}
export class Path extends GraphicItemBase {
/** 路径 */
path: Path2D = new Path2D();
protected render(
canvas: MotaOffscreenCanvas2D,
transform: Transform
): void {
const ctx = canvas.ctx;
this.setCanvasState(canvas);
switch (this.mode) {
case GraphicMode.Fill:
ctx.fill(this.path, this.fillRule);
break;
case GraphicMode.Stroke:
ctx.stroke(this.path);
break;
case GraphicMode.FillAndStroke:
ctx.fill(this.path, this.fillRule);
ctx.stroke(this.path);
break;
case GraphicMode.StrokeAndFill:
ctx.stroke(this.path);
ctx.fill(this.path, this.fillRule);
break;
}
}
/**
* 获取当前路径
*/
getPath() {
return this.path;
}
/**
* 为路径添加路径
* @param path 要添加的路径
*/
addPath(path: Path2D) {
this.path.addPath(path);
this.update();
}
patchProp(
key: string,
prevValue: any,
nextValue: any,
namespace?: ElementNamespace,
parentComponent?: ComponentInternalInstance | null
): void {
switch (key) {
case 'path':
if (!this.assertType(nextValue, Path2D, key)) return;
this.path = nextValue;
this.update();
return;
}
super.patchProp(key, prevValue, nextValue, namespace, parentComponent);
}
}
const enum RectRType {
/** 圆角为椭圆 */
Ellipse,
/** 圆角为二次贝塞尔曲线 */
Quad,
/** 圆角为三次贝塞尔曲线。该模式下,包含两个控制点,一个控制点位于上下矩形边延长线,另一个控制点位于左右矩形边延长线 */
Cubic,
/** 圆角为直线连接 */
Line
}
export class RectR extends GraphicItemBase {
/** 矩形路径 */
private path: Path2D;
/** 圆角类型 */
roundType: RectRType = RectRType.Ellipse;
/** 横向圆角半径 */
radiusX: number = 0;
/** 纵向圆角半径 */
radiusY: number = 0;
/**
* 二次贝塞尔曲线下表示控制点的横向比例控制点在上下矩形边与圆角的交界处为0在左右矩形边与圆角的交界处延长线为1
* 三次贝塞尔曲线下,表示在上下矩形边延长线上的控制点的比例
*/
cpx: number = 0;
/**
* 二次贝塞尔曲线下表示控制点的纵向比例控制点在左右矩形边与圆角的交界处为0在上下矩形边与圆角的交界处延长线为1
* 三次贝塞尔曲线下,表示在左右矩形边延长线上的控制点的比例
*/
cpy: number = 0;
constructor(
type: RenderItemPosition,
cache: boolean = false,
fall: boolean = false
) {
super(type, cache, fall);
const path = new Path2D();
path.rect(this.x, this.y, this.width, this.height);
this.path = path;
}
/**
* 更新路径
*/
private updatePath() {}
/**
* 设置圆角半径
* @param x 横向半径
* @param y 纵向半径
*/
setRadius(x: number, y: number) {}
/**
* 设置贝塞尔曲线模式下的控制点
* @param x cpx
* @param y cpy
*/
setControl(x: number, y: number) {}
protected render(
canvas: MotaOffscreenCanvas2D,
transform: Transform
): void {
const ctx = canvas.ctx;
this.setCanvasState(canvas);
switch (this.mode) {
case GraphicMode.Fill:
ctx.fill(this.path, this.fillRule);
break;
case GraphicMode.Stroke:
ctx.stroke(this.path);
break;
case GraphicMode.FillAndStroke:
ctx.fill(this.path, this.fillRule);
ctx.stroke(this.path);
break;
case GraphicMode.StrokeAndFill:
ctx.stroke(this.path);
ctx.fill(this.path, this.fillRule);
break;
}
}
patchProp(
key: string,
prevValue: any,
nextValue: any,
namespace?: ElementNamespace,
parentComponent?: ComponentInternalInstance | null
): void {
switch (key) {
}
super.patchProp(key, prevValue, nextValue, namespace, parentComponent);
}
}