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146 行
5.6 KiB

using System;
using System.Collections.Generic;
using Unity.UIWidgets.ui;
namespace Unity.UIWidgets.painting {
public class BeveledRectangleBorder : ShapeBorder, IEquatable<BeveledRectangleBorder> {
public BeveledRectangleBorder(
BorderSide side = null,
BorderRadius borderRadius = null
) {
this.side = side ?? BorderSide.none;
this.borderRadius = borderRadius ?? BorderRadius.zero;
}
public readonly BorderSide side;
public readonly BorderRadius borderRadius;
public override EdgeInsets dimensions {
get { return EdgeInsets.all(this.side.width); }
}
public override ShapeBorder scale(double t) {
return new BeveledRectangleBorder(
side: this.side.scale(t),
borderRadius: this.borderRadius * t
);
}
public override ShapeBorder lerpFrom(ShapeBorder a, double t) {
if (a is BeveledRectangleBorder border) {
return new BeveledRectangleBorder(
side: BorderSide.lerp(border.side, this.side, t),
borderRadius: BorderRadius.lerp(border.borderRadius, this.borderRadius, t)
);
}
return base.lerpFrom(a, t);
}
public override ShapeBorder lerpTo(ShapeBorder b, double t) {
if (b is BeveledRectangleBorder border) {
return new BeveledRectangleBorder(
side: BorderSide.lerp(this.side, border.side, t),
borderRadius: BorderRadius.lerp(this.borderRadius, border.borderRadius, t)
);
}
return base.lerpTo(b, t);
}
Path _getPath(RRect rrect) {
Offset centerLeft = new Offset(rrect.left, rrect.center.dy);
Offset centerRight = new Offset(rrect.right, rrect.center.dy);
Offset centerTop = new Offset(rrect.center.dx, rrect.top);
Offset centerBottom = new Offset(rrect.center.dx, rrect.bottom);
double tlRadiusX = Math.Max(0.0, rrect.tlRadiusX);
double tlRadiusY = Math.Max(0.0, rrect.tlRadiusY);
double trRadiusX = Math.Max(0.0, rrect.trRadiusX);
double trRadiusY = Math.Max(0.0, rrect.trRadiusY);
double blRadiusX = Math.Max(0.0, rrect.blRadiusX);
double blRadiusY = Math.Max(0.0, rrect.blRadiusY);
double brRadiusX = Math.Max(0.0, rrect.brRadiusX);
double brRadiusY = Math.Max(0.0, rrect.brRadiusY);
List<Offset> vertices = new List<Offset> {
new Offset(rrect.left, Math.Min(centerLeft.dy, rrect.top + tlRadiusY)),
new Offset(Math.Min(centerTop.dx, rrect.left + tlRadiusX), rrect.top),
new Offset(Math.Max(centerTop.dx, rrect.right - trRadiusX), rrect.top),
new Offset(rrect.right, Math.Min(centerRight.dy, rrect.top + trRadiusY)),
new Offset(rrect.right, Math.Max(centerRight.dy, rrect.bottom - brRadiusY)),
new Offset(Math.Max(centerBottom.dx, rrect.right - brRadiusX), rrect.bottom),
new Offset(Math.Min(centerBottom.dx, rrect.left + blRadiusX), rrect.bottom),
new Offset(rrect.left, Math.Max(centerLeft.dy, rrect.bottom - blRadiusY)),
};
var path = new Path();
path.addPolygon(vertices, true);
return path;
}
public override Path getInnerPath(Rect rect) {
return this._getPath(this.borderRadius.toRRect(rect).deflate(this.side.width));
}
public override Path getOuterPath(Rect rect) {
return this._getPath(this.borderRadius.toRRect(rect));
}
public override void paint(Canvas canvas, Rect rect) {
if (rect.isEmpty) {
return;
}
switch (this.side.style) {
case BorderStyle.none:
break;
case BorderStyle.solid:
Path path = this.getOuterPath(rect);
path.addPath(this.getInnerPath(rect), Offset.zero);
canvas.drawPath(path, this.side.toPaint());
break;
}
}
public bool Equals(BeveledRectangleBorder other) {
if (ReferenceEquals(null, other)) {
return false;
}
if (ReferenceEquals(this, other)) {
return true;
}
return Equals(this.side, other.side) && Equals(this.borderRadius, other.borderRadius);
}
public override bool Equals(object obj) {
if (ReferenceEquals(null, obj)) {
return false;
}
if (ReferenceEquals(this, obj)) {
return true;
}
if (obj.GetType() != this.GetType()) {
return false;
}
return this.Equals((BeveledRectangleBorder) obj);
}
public override int GetHashCode() {
unchecked {
return ((this.side != null ? this.side.GetHashCode() : 0) * 397) ^
(this.borderRadius != null ? this.borderRadius.GetHashCode() : 0);
}
}
public static bool operator ==(BeveledRectangleBorder left, BeveledRectangleBorder right) {
return Equals(left, right);
}
public static bool operator !=(BeveledRectangleBorder left, BeveledRectangleBorder right) {
return !Equals(left, right);
}
public override string ToString() {
return $"{this.GetType()}({this.side}, {this.borderRadius})";
}
}
}