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1943 行
64 KiB
1943 行
64 KiB
using System;
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using System.Collections.Generic;
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using System.Linq;
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using System.Runtime.InteropServices;
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using AOT;
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using Unity.UIWidgets.foundation;
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using Unity.UIWidgets.ui;
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using UnityEngine;
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using Unity.UIWidgets.async2;
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using Unity.UIWidgets.services;
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using Rect = Unity.UIWidgets.ui.Rect;
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namespace Unity.UIWidgets.ui {
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public enum FontStyle {
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normal,
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italic,
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}
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public class FontWeight {
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public FontWeight(int index) {
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this.index = index;
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}
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public readonly int index;
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public static readonly FontWeight w100 = new FontWeight(0);
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public static readonly FontWeight w200 = new FontWeight(1);
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public static readonly FontWeight w300 = new FontWeight(2);
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public static readonly FontWeight w400 = new FontWeight(3);
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public static readonly FontWeight w500 = new FontWeight(4);
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public static readonly FontWeight w600 = new FontWeight(5);
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public static readonly FontWeight w700 = new FontWeight(6);
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public static readonly FontWeight w800 = new FontWeight(7);
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public static readonly FontWeight w900 = new FontWeight(8);
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public static readonly FontWeight normal = w400;
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public static readonly FontWeight bold = w700;
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public static readonly List<FontWeight> values = new List<FontWeight> {
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w100, w200, w300, w400, w500, w600, w700, w800, w900
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};
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public static FontWeight lerp(FontWeight a, FontWeight b, float t) {
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if (a == null && b == null)
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return null;
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return values[MathUtils.lerpNullableFloat(a?.index ?? normal.index, b?.index ?? normal.index, t).round().clamp(0, 8)];
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}
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public static readonly Dictionary<int, string> map = new Dictionary<int, string> {
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{0, "FontWeight.w100"},
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{1, "FontWeight.w200"},
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{2, "FontWeight.w300"},
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{3, "FontWeight.w400"},
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{4, "FontWeight.w500"},
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{5, "FontWeight.w600"},
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{6, "FontWeight.w700"},
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{7, "FontWeight.w800"},
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{8, "FontWeight.w900"},
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};
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public override string ToString() {
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return map[index];
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}
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}
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public class FontFeature : IEquatable<FontFeature> {
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public FontFeature(string feature, int value = 1) {
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D.assert(feature != null);
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D.assert(feature.Length == 4);
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D.assert(value >= 0);
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this.feature = feature;
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this.value = value;
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}
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public FontFeature enable(string feature) {
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return new FontFeature(feature, 1);
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}
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public FontFeature disable(string feature) {
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return new FontFeature(feature, 0);
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}
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public FontFeature randomize() {
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return new FontFeature("rand", 1);
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}
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public static FontFeature stylisticSet(int value) {
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D.assert(value >= 1);
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D.assert(value <= 20);
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return new FontFeature($"ss{value.ToString().PadLeft(2, '0')}");
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}
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public FontFeature slashedZero() {
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return new FontFeature("zero", 1);
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}
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public FontFeature oldstyleFigures() {
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return new FontFeature("onum", 1);
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}
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public FontFeature proportionalFigures() {
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return new FontFeature("pnum", 1);
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}
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public FontFeature tabularFigures() {
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return new FontFeature("tnum", 1);
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}
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public readonly string feature;
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public readonly int value;
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internal static readonly int _kEncodedSize = 8;
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internal void _encode(byte[] byteData) {
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D.assert(() => {
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foreach (var charUnit in feature.ToCharArray()) {
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if (charUnit <= 0x20 && charUnit >= 0x7F) {
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return false;
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}
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}
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return true;
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});
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for (int i = 0; i < 4; i++) {
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byteData[i] = (byte) feature[i];
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}
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byteData[4] = (byte) (value >> 0);
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byteData[5] = (byte) (value >> 8);
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byteData[6] = (byte) (value >> 16);
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byteData[7] = (byte) (value >> 24);
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}
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public override string ToString() {
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return $"FontFeature({feature}, {value})";
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}
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public bool Equals(FontFeature other) {
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if (ReferenceEquals(null, other)) {
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return false;
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}
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if (ReferenceEquals(this, other)) {
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return true;
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}
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return feature == other.feature && value == other.value;
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}
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public override bool Equals(object obj) {
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if (ReferenceEquals(null, obj)) {
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return false;
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}
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if (ReferenceEquals(this, obj)) {
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return true;
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}
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if (obj.GetType() != GetType()) {
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return false;
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}
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return Equals((FontFeature) obj);
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}
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public override int GetHashCode() {
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unchecked {
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return ((feature != null ? feature.GetHashCode() : 0) * 397) ^ value;
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}
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}
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}
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public enum TextAlign {
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left,
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right,
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center,
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justify,
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start,
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end,
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}
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public enum TextBaseline {
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alphabetic,
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ideographic,
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}
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public class TextDecoration : IEquatable<TextDecoration> {
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public TextDecoration(int _mask) {
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this._mask = _mask;
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}
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public TextDecoration combine(List<TextDecoration> decorations) {
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int mask = 0;
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foreach (TextDecoration decoration in decorations) {
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mask |= decoration._mask;
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}
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return new TextDecoration(mask);
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}
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internal readonly int _mask;
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public bool contains(TextDecoration other) {
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return (_mask | other._mask) == _mask;
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}
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public static readonly TextDecoration none = new TextDecoration(0x0);
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public static readonly TextDecoration underline = new TextDecoration(0x1);
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public static readonly TextDecoration overline = new TextDecoration(0x2);
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public static readonly TextDecoration lineThrough = new TextDecoration(0x4);
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public override string ToString() {
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if (_mask == 0) {
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return "TextDecoration.none";
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}
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List<string> values = new List<string>();
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if ((_mask & underline._mask) != 0)
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values.Add("underline");
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if ((_mask & overline._mask) != 0)
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values.Add("overline");
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if ((_mask & lineThrough._mask) != 0)
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values.Add("lineThrough");
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if (values.Count == 1)
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return $"TextDecoration.{values[0]}";
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return $"TextDecoration.combine([{String.Join(", ", values)}])";
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}
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public bool Equals(TextDecoration other) {
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if (ReferenceEquals(null, other)) {
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return false;
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}
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if (ReferenceEquals(this, other)) {
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return true;
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}
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return _mask == other._mask;
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}
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public override bool Equals(object obj) {
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if (ReferenceEquals(null, obj)) {
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return false;
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}
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if (ReferenceEquals(this, obj)) {
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return true;
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}
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if (obj.GetType() != GetType()) {
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return false;
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}
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return Equals((TextDecoration) obj);
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}
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public override int GetHashCode() {
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return _mask;
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}
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}
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public enum TextDecorationStyle {
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solid,
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doubleLine,
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dotted,
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dashed,
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wavy
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}
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public class TextHeightBehavior : IEquatable<TextHeightBehavior> {
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public TextHeightBehavior(
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bool applyHeightToFirstAscent = true,
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bool applyHeightToLastDescent = true
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) {
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this.applyHeightToFirstAscent = applyHeightToFirstAscent;
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this.applyHeightToLastDescent = applyHeightToLastDescent;
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}
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public static TextHeightBehavior fromEncoded(int encoded) {
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return new TextHeightBehavior((encoded & 0x1) == 0, (encoded & 0x2) == 0);
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}
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public readonly bool applyHeightToFirstAscent;
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public readonly bool applyHeightToLastDescent;
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public int encode() {
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return (applyHeightToFirstAscent ? 0 : 1 << 0) | (applyHeightToLastDescent ? 0 : 1 << 1);
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}
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public override string ToString() {
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return "TextHeightBehavior(\n" +
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$" applyHeightToFirstAscent: {applyHeightToFirstAscent}, \n" +
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$" applyHeightToLastDescent: {applyHeightToLastDescent} \n" +
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")";
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}
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public bool Equals(TextHeightBehavior other) {
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if (ReferenceEquals(null, other)) {
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return false;
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}
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if (ReferenceEquals(this, other)) {
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return true;
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}
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return applyHeightToFirstAscent == other.applyHeightToFirstAscent &&
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applyHeightToLastDescent == other.applyHeightToLastDescent;
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}
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public override bool Equals(object obj) {
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if (ReferenceEquals(null, obj)) {
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return false;
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}
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if (ReferenceEquals(this, obj)) {
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return true;
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}
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if (obj.GetType() != GetType()) {
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return false;
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}
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return Equals((TextHeightBehavior) obj);
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}
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public override int GetHashCode() {
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unchecked {
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return (applyHeightToFirstAscent.GetHashCode() * 397) ^ applyHeightToLastDescent.GetHashCode();
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}
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}
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}
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public struct Float32List {
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public IntPtr data;
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public int length;
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}
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public static partial class ui_ {
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static readonly object VoidObject = new object();
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internal static int[] _encodeTextStyle(
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Color color,
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TextDecoration decoration,
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Color decorationColor,
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TextDecorationStyle? decorationStyle,
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float? decorationThickness,
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FontWeight fontWeight,
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FontStyle? fontStyle,
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TextBaseline? textBaseline,
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string fontFamily,
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List<string> fontFamilyFallback,
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float? fontSize,
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float? letterSpacing,
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float? wordSpacing,
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float? height,
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Locale locale,
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Paint background,
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Paint foreground,
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List<Shadow> shadows,
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List<FontFeature> fontFeatures
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) {
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int[] result = new int[8];
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if (color != null) {
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result[0] |= 1 << 1;
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result[1] = (int) color.value;
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}
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if (decoration != null) {
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result[0] |= 1 << 2;
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result[2] = decoration._mask;
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}
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if (decorationColor != null) {
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result[0] |= 1 << 3;
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result[3] = (int) decorationColor.value;
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}
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if (decorationStyle != null) {
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result[0] |= 1 << 4;
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result[4] = (int) decorationStyle;
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}
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if (fontWeight != null) {
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result[0] |= 1 << 5;
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result[5] = fontWeight.index;
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}
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if (fontStyle != null) {
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result[0] |= 1 << 6;
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result[6] = (int) fontStyle;
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}
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if (textBaseline != null) {
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result[0] |= 1 << 7;
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result[7] = (int) textBaseline;
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}
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if (decorationThickness != null) {
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result[0] |= 1 << 8;
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}
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if (fontFamily != null || (fontFamilyFallback != null && fontFamilyFallback.isNotEmpty())) {
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result[0] |= 1 << 9;
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// Passed separately to native.
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}
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if (fontSize != null) {
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result[0] |= 1 << 10;
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// Passed separately to native.
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}
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if (letterSpacing != null) {
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result[0] |= 1 << 11;
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// Passed separately to native.
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}
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if (wordSpacing != null) {
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result[0] |= 1 << 12;
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// Passed separately to native.
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}
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if (height != null) {
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result[0] |= 1 << 13;
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// Passed separately to native.
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}
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if (locale != null) {
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result[0] |= 1 << 14;
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// Passed separately to native.
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}
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if (background != null) {
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result[0] |= 1 << 15;
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// Passed separately to native.
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}
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if (foreground != null) {
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result[0] |= 1 << 16;
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// Passed separately to native.
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}
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if (shadows != null) {
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result[0] |= 1 << 17;
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// Passed separately to native.
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}
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if (fontFeatures != null) {
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result[0] |= 1 << 18;
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// Passed separately to native.
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}
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return result;
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}
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internal static List<int> _encodeParagraphStyle(
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TextAlign? textAlign,
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TextDirection? textDirection,
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int? maxLines,
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string fontFamily,
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float? fontSize,
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float? height,
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TextHeightBehavior textHeightBehavior,
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FontWeight fontWeight,
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FontStyle? fontStyle,
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StrutStyle strutStyle,
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string ellipsis,
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Locale locale
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) {
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List<int> result = new List<int>(new int[7]);
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if (textAlign != null) {
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result[0] |= 1 << 1;
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result[1] = (int) textAlign;
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}
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if (textDirection != null) {
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result[0] |= 1 << 2;
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result[2] = (int) textDirection;
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}
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if (fontWeight != null) {
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result[0] |= 1 << 3;
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result[3] = fontWeight.index;
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}
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if (fontStyle != null) {
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result[0] |= 1 << 4;
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result[4] = (int) fontStyle;
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}
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if (maxLines != null) {
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result[0] |= 1 << 5;
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result[5] = maxLines.Value;
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}
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if (textHeightBehavior != null) {
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result[0] |= 1 << 6;
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result[6] = textHeightBehavior.encode();
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}
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if (fontFamily != null) {
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result[0] |= 1 << 7;
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// Passed separately to native.
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}
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if (fontSize != null) {
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result[0] |= 1 << 8;
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// Passed separately to native.
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}
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if (height != null) {
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result[0] |= 1 << 9;
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// Passed separately to native.
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}
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if (strutStyle != null) {
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result[0] |= 1 << 10;
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// Passed separately to native.
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}
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if (ellipsis != null) {
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result[0] |= 1 << 11;
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// Passed separately to native.
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}
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if (locale != null) {
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result[0] |= 1 << 12;
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// Passed separately to native.
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}
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return result;
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}
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internal static unsafe void setFloat(this byte[] bytes, int byteOffset, float value) {
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D.assert(byteOffset >= 0 && byteOffset + 4 < bytes.Length);
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fixed (byte* b = &bytes[byteOffset]) {
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*(float*) b = value;
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}
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}
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internal static byte[] _encodeStrut(
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string fontFamily,
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List<string> fontFamilyFallback,
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float? fontSize,
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float? height,
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float? leading,
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FontWeight fontWeight,
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FontStyle? fontStyle,
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bool? forceStrutHeight) {
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if (fontFamily == null &&
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fontSize == null &&
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height == null &&
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leading == null &&
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fontWeight == null &&
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fontStyle == null &&
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forceStrutHeight == null) {
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return new byte[0];
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}
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byte[] data = new byte[15]; // Max size is 15 bytes
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int bitmask = 0; // 8 bit mask
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int byteCount = 1;
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if (fontWeight != null) {
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bitmask |= 1 << 0;
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data[byteCount] = (byte) fontWeight.index;
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byteCount += 1;
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}
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if (fontStyle != null) {
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bitmask |= 1 << 1;
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data[byteCount] = (byte) fontStyle;
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byteCount += 1;
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}
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if (fontFamily != null || (fontFamilyFallback != null && fontFamilyFallback.isNotEmpty())) {
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bitmask |= 1 << 2;
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// passed separately to native
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}
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if (fontSize != null) {
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bitmask |= 1 << 3;
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data.setFloat(byteCount, (float) fontSize);
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byteCount += 4;
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}
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if (height != null) {
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bitmask |= 1 << 4;
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data.setFloat(byteCount, (float) height);
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byteCount += 4;
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}
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if (leading != null) {
|
|
bitmask |= 1 << 5;
|
|
data.setFloat(byteCount, (float) leading);
|
|
byteCount += 4;
|
|
}
|
|
|
|
if (forceStrutHeight != null) {
|
|
bitmask |= 1 << 6;
|
|
// We store this boolean directly in the bitmask since there is
|
|
// extra space in the 16 bit int.
|
|
bitmask |= (forceStrutHeight.Value ? 1 : 0) << 7;
|
|
}
|
|
|
|
data[0] = (byte) bitmask;
|
|
return data.range(0, byteCount);
|
|
}
|
|
|
|
public static unsafe Future loadFontFromList(byte[] list, string fontFamily = null) {
|
|
return _futurize((_Callback<object> callback) => {
|
|
// var completer = new Promise(true);
|
|
GCHandle completerHandle = GCHandle.Alloc(callback);
|
|
fixed (byte* listPtr = list) {
|
|
Font_LoadFontFromList(listPtr, list.Length, _loadFontCallback, (IntPtr) completerHandle,
|
|
fontFamily);
|
|
}
|
|
|
|
return null;
|
|
});
|
|
}
|
|
|
|
[MonoPInvokeCallback(typeof(_loadFontFromListCallback))]
|
|
static void _loadFontCallback(IntPtr callbackHandle) {
|
|
GCHandle completerHandle = (GCHandle) callbackHandle;
|
|
var callback = (_Callback<object>) completerHandle.Target;
|
|
completerHandle.Free();
|
|
_sendFontChangeMessage();
|
|
try {
|
|
callback(VoidObject);
|
|
}
|
|
catch (Exception ex) {
|
|
Debug.LogException(ex);
|
|
}
|
|
}
|
|
|
|
static byte[] _fontChangeMessage = JSONMessageCodec.instance.encodeMessage(
|
|
new Dictionary<string, string>() {
|
|
{"type", "fontsChange"}
|
|
});
|
|
|
|
static void _sendFontChangeMessage() {
|
|
Window.instance.onPlatformMessage?.Invoke("uiwidgets/system", _fontChangeMessage,
|
|
(_) => { });
|
|
}
|
|
|
|
delegate void _loadFontFromListCallback(IntPtr callbackHandle);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern unsafe void Font_LoadFontFromList(byte* list, int size, _loadFontFromListCallback callback,
|
|
IntPtr callbackHandle,
|
|
string fontFamily);
|
|
|
|
|
|
public static float[] toFloatArrayAndFree(this Float32List data) {
|
|
float[] result = new float[data.length];
|
|
Marshal.Copy(data.data, result, 0, data.length);
|
|
Lists_Free(data.data);
|
|
return result;
|
|
}
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
public static extern void Lists_Free(IntPtr data);
|
|
}
|
|
|
|
public class TextStyle : IEquatable<TextStyle> {
|
|
public TextStyle(
|
|
Color color = null,
|
|
TextDecoration decoration = null,
|
|
Color decorationColor = null,
|
|
TextDecorationStyle? decorationStyle = null,
|
|
float? decorationThickness = null,
|
|
FontWeight fontWeight = null,
|
|
FontStyle? fontStyle = null,
|
|
TextBaseline? textBaseline = null,
|
|
string fontFamily = null,
|
|
List<string> fontFamilyFallback = null,
|
|
float? fontSize = null,
|
|
float? letterSpacing = null,
|
|
float? wordSpacing = null,
|
|
float? height = null,
|
|
Locale locale = null,
|
|
Paint background = null,
|
|
Paint foreground = null,
|
|
List<Shadow> shadows = null,
|
|
List<FontFeature> fontFeatures = null
|
|
) {
|
|
D.assert(color == null || foreground == null, () =>
|
|
"Cannot provide both a color and a foreground\n" +
|
|
"The color argument is just a shorthand for \"foreground: Paint()..color = color\"."
|
|
);
|
|
_encoded = ui_._encodeTextStyle(
|
|
color,
|
|
decoration,
|
|
decorationColor,
|
|
decorationStyle,
|
|
decorationThickness,
|
|
fontWeight,
|
|
fontStyle,
|
|
textBaseline,
|
|
fontFamily,
|
|
fontFamilyFallback,
|
|
fontSize,
|
|
letterSpacing,
|
|
wordSpacing,
|
|
height,
|
|
locale,
|
|
background,
|
|
foreground,
|
|
shadows,
|
|
fontFeatures
|
|
);
|
|
|
|
_fontFamily = fontFamily ?? "";
|
|
_fontFamilyFallback = fontFamilyFallback;
|
|
_fontSize = fontSize;
|
|
_letterSpacing = letterSpacing;
|
|
_wordSpacing = wordSpacing;
|
|
_height = height;
|
|
_decorationThickness = decorationThickness;
|
|
_locale = locale;
|
|
_background = background;
|
|
_foreground = foreground;
|
|
_shadows = shadows;
|
|
_fontFeatures = fontFeatures;
|
|
}
|
|
|
|
internal readonly int[] _encoded;
|
|
internal readonly string _fontFamily;
|
|
internal readonly List<string> _fontFamilyFallback;
|
|
internal readonly float? _fontSize;
|
|
internal readonly float? _letterSpacing;
|
|
internal readonly float? _wordSpacing;
|
|
internal readonly float? _height;
|
|
internal readonly float? _decorationThickness;
|
|
internal readonly Locale _locale;
|
|
internal readonly Paint _background;
|
|
internal readonly Paint _foreground;
|
|
internal readonly List<Shadow> _shadows;
|
|
internal readonly List<FontFeature> _fontFeatures;
|
|
|
|
public override string ToString() {
|
|
string color = (_encoded[0] & 0x00002) == 0x00002
|
|
? (new Color((uint) _encoded[1])).ToString()
|
|
: "unspecified";
|
|
string decoration = (_encoded[0] & 0x00004) == 0x00004
|
|
? (new TextDecoration(_encoded[2])).ToString()
|
|
: "unspecified";
|
|
string decorationColor = (_encoded[0] & 0x00008) == 0x00008
|
|
? (new Color((uint) _encoded[3])).ToString()
|
|
: "unspecified";
|
|
string decorationStyle = (_encoded[0] & 0x00010) == 0x00010
|
|
? ((TextDecorationStyle) _encoded[4]).ToString()
|
|
: "unspecified";
|
|
// The decorationThickness is not in encoded order in order to keep it near the other decoration properties.
|
|
string decorationThickness = (_encoded[0] & 0x00100) == 0x00100
|
|
? _decorationThickness.ToString()
|
|
: "unspecified";
|
|
string fontWeight = (_encoded[0] & 0x00020) == 0x00020
|
|
? FontWeight.values[_encoded[5]].ToString()
|
|
: "unspecified";
|
|
string fontStyle = (_encoded[0] & 0x00040) == 0x00040
|
|
? ((FontStyle) _encoded[6]).ToString()
|
|
: "unspecified";
|
|
string textBaseline = (_encoded[0] & 0x00080) == 0x00080
|
|
? ((TextBaseline) _encoded[7]).ToString()
|
|
: "unspecified";
|
|
string fontFamily = (_encoded[0] & 0x00200) == 0x00200
|
|
&& _fontFamily != null
|
|
? _fontFamily
|
|
: "unspecified";
|
|
string fontFamilyFallback = (_encoded[0] & 0x00200) == 0x00200
|
|
&& _fontFamilyFallback != null
|
|
&& _fontFamilyFallback.isNotEmpty()
|
|
? _fontFamilyFallback.ToString()
|
|
: "unspecified";
|
|
string fontSize = (_encoded[0] & 0x00400) == 0x00400 ? _fontSize.ToString() : "unspecified";
|
|
string letterSpacing = (_encoded[0] & 0x00800) == 0x00800 ? "_letterSpacing}x" : "unspecified";
|
|
string wordSpacing = (_encoded[0] & 0x01000) == 0x01000 ? "_wordSpacing}x" : "unspecified";
|
|
string height = (_encoded[0] & 0x02000) == 0x02000 ? "_height}x" : "unspecified";
|
|
string locale = (_encoded[0] & 0x04000) == 0x04000 ? _locale.ToString() : "unspecified";
|
|
string background = (_encoded[0] & 0x08000) == 0x08000 ? _locale.ToString() : "unspecified";
|
|
string foreground = (_encoded[0] & 0x10000) == 0x10000 ? _locale.ToString() : "unspecified";
|
|
string shadows = (_encoded[0] & 0x20000) == 0x20000 ? _locale.ToString() : "unspecified";
|
|
|
|
string fontFeatures =
|
|
(_encoded[0] & 0x40000) == 0x40000 ? _fontFeatures.ToString() : "unspecified";
|
|
|
|
return "TextStyle(\n" +
|
|
$"color: {color}\n" +
|
|
$"decoration: {decoration}\n" +
|
|
$"decorationColor: {decorationColor}\n" +
|
|
$"decorationStyle: {decorationStyle}\n" +
|
|
// The decorationThickness is not in encoded order in order to keep it near the other decoration properties.
|
|
$"decorationThickness: {decorationThickness}\n" +
|
|
$"fontWeight: {fontWeight}\n" +
|
|
$"fontStyle: {fontStyle}\n" +
|
|
$"textBaseline: {textBaseline}\n" +
|
|
$"fontFamily: {fontFamily}\n" +
|
|
$"fontFamilyFallback: {fontFamilyFallback}\n" +
|
|
$"fontSize: {fontSize}\n" +
|
|
$"letterSpacing: {letterSpacing}\n" +
|
|
$"wordSpacing: {wordSpacing}\n" +
|
|
$"height: {height}\n" +
|
|
$"locale: {locale}\n" +
|
|
$"background: {background}\n" +
|
|
$"foreground: {foreground}\n" +
|
|
$"shadows: {shadows}\n" +
|
|
$"fontFeatures: {fontFeatures}\n" +
|
|
")";
|
|
}
|
|
|
|
public bool Equals(TextStyle other) {
|
|
if (ReferenceEquals(null, other)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, other)) {
|
|
return true;
|
|
}
|
|
|
|
return _encoded.equalsList(other._encoded) && Equals(_fontFamily, other._fontFamily) &&
|
|
_fontFamilyFallback.equalsList(other._fontFamilyFallback) &&
|
|
Nullable.Equals(_fontSize, other._fontSize) &&
|
|
Nullable.Equals(_letterSpacing, other._letterSpacing) &&
|
|
Nullable.Equals(_wordSpacing, other._wordSpacing) && Nullable.Equals(_height, other._height) &&
|
|
Nullable.Equals(_decorationThickness, other._decorationThickness) &&
|
|
Equals(_locale, other._locale) && Equals(_background, other._background) &&
|
|
Equals(_foreground, other._foreground) && _shadows.equalsList(other._shadows) &&
|
|
_fontFeatures.equalsList(other._fontFeatures);
|
|
}
|
|
|
|
public override bool Equals(object obj) {
|
|
if (ReferenceEquals(null, obj)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, obj)) {
|
|
return true;
|
|
}
|
|
|
|
if (obj.GetType() != GetType()) {
|
|
return false;
|
|
}
|
|
|
|
return Equals((TextStyle) obj);
|
|
}
|
|
|
|
public override int GetHashCode() {
|
|
unchecked {
|
|
var hashCode = (_encoded != null ? _encoded.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (_fontFamily != null ? _fontFamily.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (_fontFamilyFallback != null ? _fontFamilyFallback.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ _fontSize.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ _letterSpacing.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ _wordSpacing.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ _height.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ _decorationThickness.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ (_locale != null ? _locale.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (_background != null ? _background.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (_foreground != null ? _foreground.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (_shadows != null ? _shadows.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (_fontFeatures != null ? _fontFeatures.GetHashCode() : 0);
|
|
return hashCode;
|
|
}
|
|
}
|
|
}
|
|
|
|
public class ParagraphStyle : IEquatable<ParagraphStyle> {
|
|
public ParagraphStyle(
|
|
TextAlign? textAlign = null,
|
|
TextDirection? textDirection = null,
|
|
int? maxLines = null,
|
|
string fontFamily = null,
|
|
float? fontSize = null,
|
|
float? height = null,
|
|
TextHeightBehavior textHeightBehavior = null,
|
|
FontWeight fontWeight = null,
|
|
FontStyle? fontStyle = null,
|
|
StrutStyle strutStyle = null,
|
|
string ellipsis = null,
|
|
Locale locale = null
|
|
) {
|
|
_encoded = ui_._encodeParagraphStyle(
|
|
textAlign,
|
|
textDirection,
|
|
maxLines,
|
|
fontFamily,
|
|
fontSize,
|
|
height,
|
|
textHeightBehavior,
|
|
fontWeight,
|
|
fontStyle,
|
|
strutStyle,
|
|
ellipsis,
|
|
locale
|
|
);
|
|
_fontFamily = fontFamily;
|
|
_fontSize = fontSize;
|
|
_height = height;
|
|
_strutStyle = strutStyle;
|
|
_ellipsis = ellipsis;
|
|
_locale = locale;
|
|
}
|
|
|
|
internal readonly List<int> _encoded;
|
|
internal readonly string _fontFamily;
|
|
internal readonly float? _fontSize;
|
|
internal readonly float? _height;
|
|
internal readonly StrutStyle _strutStyle;
|
|
internal readonly string _ellipsis;
|
|
internal readonly Locale _locale;
|
|
|
|
public override string ToString() {
|
|
string textAlign = (_encoded[0] & 0x002) == 0x002
|
|
? ((TextAlign) _encoded[1]).ToString()
|
|
: "unspecified";
|
|
string textDirection = (_encoded[0] & 0x004) == 0x004
|
|
? ((TextDirection) _encoded[2]).ToString()
|
|
: "unspecified";
|
|
string fontWeight = (_encoded[0] & 0x008) == 0x008
|
|
? FontWeight.values[_encoded[3]].ToString()
|
|
: "unspecified";
|
|
string fontStyle = (_encoded[0] & 0x010) == 0x010
|
|
? ((FontStyle) _encoded[4]).ToString()
|
|
: "unspecified";
|
|
string maxLines = (_encoded[0] & 0x020) == 0x020 ? _encoded[5].ToString() : "unspecified";
|
|
string textHeightBehavior = (_encoded[0] & 0x040) == 0x040
|
|
? TextHeightBehavior.fromEncoded(_encoded[6]).ToString()
|
|
: "unspecified";
|
|
string fontFamily = (_encoded[0] & 0x080) == 0x080 ? _fontFamily : "unspecified";
|
|
string fontSize = (_encoded[0] & 0x100) == 0x100 ? _fontSize.ToString() : "unspecified";
|
|
string height = (_encoded[0] & 0x200) == 0x200 ? $"{_height}x" : "unspecified";
|
|
string ellipsis = (_encoded[0] & 0x400) == 0x400 ? _ellipsis : "unspecified";
|
|
string locale = (_encoded[0] & 0x800) == 0x800 ? _locale.ToString() : "unspecified";
|
|
return "ParagraphStyle(\n" +
|
|
$"textAlign: {textAlign}\n" +
|
|
$"textDirection: {textDirection}\n" +
|
|
$"fontWeight: {fontWeight}\n" +
|
|
$"fontStyle: {fontStyle}\n" +
|
|
$"maxLines: {maxLines}\n" +
|
|
$"textHeightBehavior: {textHeightBehavior}$\n" +
|
|
$"fontFamily: {fontFamily}\n" +
|
|
$"fontSize: {fontSize}\n" +
|
|
$"height: {height}\n" +
|
|
$"ellipsis: {ellipsis}\n" +
|
|
$"locale: {locale}\n" +
|
|
")";
|
|
}
|
|
|
|
public bool Equals(ParagraphStyle other) {
|
|
if (ReferenceEquals(null, other)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, other)) {
|
|
return true;
|
|
}
|
|
|
|
return _encoded.equalsList(other._encoded) && _fontFamily == other._fontFamily &&
|
|
Nullable.Equals(_fontSize, other._fontSize) && Nullable.Equals(_height, other._height) &&
|
|
Equals(_strutStyle, other._strutStyle) && _ellipsis == other._ellipsis &&
|
|
Equals(_locale, other._locale);
|
|
}
|
|
|
|
public override bool Equals(object obj) {
|
|
if (ReferenceEquals(null, obj)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, obj)) {
|
|
return true;
|
|
}
|
|
|
|
if (obj.GetType() != GetType()) {
|
|
return false;
|
|
}
|
|
|
|
return Equals((ParagraphStyle) obj);
|
|
}
|
|
|
|
public override int GetHashCode() {
|
|
unchecked {
|
|
var hashCode = (_encoded != null ? _encoded.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (_fontFamily != null ? _fontFamily.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ _fontSize.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ _height.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ (_strutStyle != null ? _strutStyle.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (_ellipsis != null ? _ellipsis.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (_locale != null ? _locale.GetHashCode() : 0);
|
|
return hashCode;
|
|
}
|
|
}
|
|
}
|
|
|
|
public class StrutStyle : IEquatable<StrutStyle> {
|
|
public StrutStyle(
|
|
string fontFamily = null,
|
|
List<string> fontFamilyFallback = null,
|
|
float? fontSize = null,
|
|
float? height = null,
|
|
float? leading = null,
|
|
FontWeight fontWeight = null,
|
|
FontStyle? fontStyle = null,
|
|
bool? forceStrutHeight = null
|
|
) {
|
|
_encoded = ui_._encodeStrut(
|
|
fontFamily,
|
|
fontFamilyFallback,
|
|
fontSize,
|
|
height,
|
|
leading,
|
|
fontWeight,
|
|
fontStyle,
|
|
forceStrutHeight
|
|
);
|
|
_fontFamily = fontFamily;
|
|
_fontFamilyFallback = fontFamilyFallback;
|
|
}
|
|
|
|
internal readonly byte[] _encoded; // Most of the data for strut is encoded.
|
|
internal readonly string _fontFamily;
|
|
internal readonly List<string> _fontFamilyFallback;
|
|
|
|
public bool Equals(StrutStyle other) {
|
|
if (ReferenceEquals(null, other)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, other)) {
|
|
return true;
|
|
}
|
|
|
|
return _encoded.equalsList(other._encoded) && _fontFamily == other._fontFamily &&
|
|
_fontFamilyFallback.equalsList(other._fontFamilyFallback);
|
|
}
|
|
|
|
public override bool Equals(object obj) {
|
|
if (ReferenceEquals(null, obj)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, obj)) {
|
|
return true;
|
|
}
|
|
|
|
if (obj.GetType() != GetType()) {
|
|
return false;
|
|
}
|
|
|
|
return Equals((StrutStyle) obj);
|
|
}
|
|
|
|
public override int GetHashCode() {
|
|
unchecked {
|
|
var hashCode = (_encoded != null ? _encoded.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (_fontFamily != null ? _fontFamily.GetHashCode() : 0);
|
|
hashCode = (hashCode * 397) ^ (_fontFamilyFallback != null ? _fontFamilyFallback.GetHashCode() : 0);
|
|
return hashCode;
|
|
}
|
|
}
|
|
}
|
|
|
|
public enum TextDirection {
|
|
rtl,
|
|
|
|
ltr,
|
|
}
|
|
|
|
public class TextBox : IEquatable<TextBox> {
|
|
TextBox(
|
|
float left,
|
|
float top,
|
|
float right,
|
|
float bottom,
|
|
TextDirection direction) {
|
|
this.left = left;
|
|
this.top = top;
|
|
this.right = right;
|
|
this.bottom = bottom;
|
|
this.direction = direction;
|
|
}
|
|
|
|
public static TextBox fromLTRBD(
|
|
float left,
|
|
float top,
|
|
float right,
|
|
float bottom,
|
|
TextDirection direction) {
|
|
return new TextBox(left, top, right, bottom, direction);
|
|
}
|
|
|
|
public readonly float left;
|
|
|
|
public readonly float top;
|
|
|
|
public readonly float right;
|
|
|
|
public readonly float bottom;
|
|
|
|
public readonly TextDirection direction;
|
|
|
|
public Rect toRect() => Rect.fromLTRB((float) left, (float) top, (float) right, (float) bottom);
|
|
|
|
public float start {
|
|
get { return (direction == TextDirection.ltr) ? left : right; }
|
|
}
|
|
|
|
public float end {
|
|
get { return (direction == TextDirection.ltr) ? right : left; }
|
|
}
|
|
|
|
public override string ToString() {
|
|
return
|
|
$"TextBox.fromLTRBD({left.ToString("N1")}, {top.ToString("N1")}, {right.ToString("N1")}, {bottom.ToString("N1")}, {direction})";
|
|
}
|
|
|
|
public bool Equals(TextBox other) {
|
|
if (ReferenceEquals(null, other)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, other)) {
|
|
return true;
|
|
}
|
|
|
|
return left.Equals(other.left) && top.Equals(other.top) && right.Equals(other.right) &&
|
|
bottom.Equals(other.bottom) && direction == other.direction;
|
|
}
|
|
|
|
public override bool Equals(object obj) {
|
|
if (ReferenceEquals(null, obj)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, obj)) {
|
|
return true;
|
|
}
|
|
|
|
if (obj.GetType() != GetType()) {
|
|
return false;
|
|
}
|
|
|
|
return Equals((TextBox) obj);
|
|
}
|
|
|
|
public override int GetHashCode() {
|
|
unchecked {
|
|
var hashCode = left.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ top.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ right.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ bottom.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ (int) direction;
|
|
return hashCode;
|
|
}
|
|
}
|
|
}
|
|
|
|
public enum TextAffinity {
|
|
upstream,
|
|
|
|
downstream,
|
|
}
|
|
|
|
public class TextPosition : IEquatable<TextPosition> {
|
|
public TextPosition(
|
|
int offset,
|
|
TextAffinity affinity = TextAffinity.downstream) {
|
|
this.offset = offset;
|
|
this.affinity = affinity;
|
|
}
|
|
|
|
public readonly int offset;
|
|
|
|
public readonly TextAffinity affinity;
|
|
|
|
public override string ToString() {
|
|
return $"TextPosition(offset: {offset}, affinity: {affinity})";
|
|
}
|
|
|
|
public bool Equals(TextPosition other) {
|
|
if (ReferenceEquals(null, other)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, other)) {
|
|
return true;
|
|
}
|
|
|
|
return offset == other.offset && affinity == other.affinity;
|
|
}
|
|
|
|
public override bool Equals(object obj) {
|
|
if (ReferenceEquals(null, obj)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, obj)) {
|
|
return true;
|
|
}
|
|
|
|
if (obj.GetType() != GetType()) {
|
|
return false;
|
|
}
|
|
|
|
return Equals((TextPosition) obj);
|
|
}
|
|
|
|
public override int GetHashCode() {
|
|
unchecked {
|
|
return (offset * 397) ^ (int) affinity;
|
|
}
|
|
}
|
|
}
|
|
|
|
public class TextRange : IEquatable<TextRange> {
|
|
public TextRange(
|
|
int start, int end) {
|
|
D.assert(start >= -1);
|
|
D.assert(end >= -1);
|
|
this.start = start;
|
|
this.end = end;
|
|
}
|
|
|
|
public static TextRange collapsed(int offset) {
|
|
D.assert(offset >= -1);
|
|
return new TextRange(offset, offset);
|
|
}
|
|
|
|
public static readonly TextRange empty = new TextRange(start: -1, end: -1);
|
|
|
|
public readonly int start;
|
|
|
|
public readonly int end;
|
|
|
|
public bool isValid {
|
|
get { return start >= 0 && end >= 0; }
|
|
}
|
|
|
|
public bool isCollapsed {
|
|
get { return start == end; }
|
|
}
|
|
|
|
public bool isNormalized {
|
|
get { return end >= start; }
|
|
}
|
|
|
|
public string textBefore(string text) {
|
|
D.assert(isNormalized);
|
|
return text.Substring(0, start);
|
|
}
|
|
|
|
public string textAfter(string text) {
|
|
D.assert(isNormalized);
|
|
return text.Substring(end);
|
|
}
|
|
|
|
public string textInside(string text) {
|
|
D.assert(isNormalized);
|
|
return text.Substring(start, end - start);
|
|
}
|
|
|
|
public override string ToString() {
|
|
return $"TextRange(start: {start}, end: {end})";
|
|
}
|
|
|
|
public bool Equals(TextRange other) {
|
|
if (ReferenceEquals(null, other)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, other)) {
|
|
return true;
|
|
}
|
|
|
|
return start == other.start && end == other.end;
|
|
}
|
|
|
|
public override bool Equals(object obj) {
|
|
if (ReferenceEquals(null, obj)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, obj)) {
|
|
return true;
|
|
}
|
|
|
|
if (obj.GetType() != GetType()) {
|
|
return false;
|
|
}
|
|
|
|
return Equals((TextRange) obj);
|
|
}
|
|
|
|
public override int GetHashCode() {
|
|
unchecked {
|
|
return (start * 397) ^ end;
|
|
}
|
|
}
|
|
}
|
|
|
|
public class ParagraphConstraints : IEquatable<ParagraphConstraints> {
|
|
public ParagraphConstraints(float width) {
|
|
this.width = width;
|
|
}
|
|
|
|
public readonly float width;
|
|
|
|
public override string ToString() {
|
|
return $"ParagraphConstraints(width: {width})";
|
|
}
|
|
|
|
public bool Equals(ParagraphConstraints other) {
|
|
if (ReferenceEquals(null, other)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, other)) {
|
|
return true;
|
|
}
|
|
|
|
return width.Equals(other.width);
|
|
}
|
|
|
|
public override bool Equals(object obj) {
|
|
if (ReferenceEquals(null, obj)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, obj)) {
|
|
return true;
|
|
}
|
|
|
|
if (obj.GetType() != GetType()) {
|
|
return false;
|
|
}
|
|
|
|
return Equals((ParagraphConstraints) obj);
|
|
}
|
|
|
|
public override int GetHashCode() {
|
|
return width.GetHashCode();
|
|
}
|
|
}
|
|
|
|
public enum BoxHeightStyle {
|
|
tight,
|
|
|
|
max,
|
|
|
|
includeLineSpacingMiddle,
|
|
|
|
includeLineSpacingTop,
|
|
|
|
includeLineSpacingBottom,
|
|
|
|
strut,
|
|
}
|
|
|
|
public enum BoxWidthStyle {
|
|
tight,
|
|
|
|
max,
|
|
}
|
|
|
|
public enum PlaceholderAlignment {
|
|
baseline,
|
|
|
|
aboveBaseline,
|
|
|
|
belowBaseline,
|
|
|
|
top,
|
|
|
|
bottom,
|
|
|
|
middle,
|
|
}
|
|
|
|
public class LineMetrics : IEquatable<LineMetrics> {
|
|
public LineMetrics(
|
|
bool hardBreak,
|
|
float ascent,
|
|
float descent,
|
|
float unscaledAscent,
|
|
float height,
|
|
float width,
|
|
float left,
|
|
float baseline,
|
|
int lineNumber) {
|
|
this.hardBreak = hardBreak;
|
|
this.ascent = ascent;
|
|
this.descent = descent;
|
|
this.unscaledAscent = unscaledAscent;
|
|
this.height = height;
|
|
this.width = width;
|
|
this.left = left;
|
|
this.baseline = baseline;
|
|
this.lineNumber = lineNumber;
|
|
}
|
|
|
|
public readonly bool hardBreak;
|
|
|
|
public readonly float ascent;
|
|
|
|
public readonly float descent;
|
|
|
|
public readonly float unscaledAscent;
|
|
|
|
public readonly float height;
|
|
|
|
public readonly float width;
|
|
|
|
public readonly float left;
|
|
|
|
public readonly float baseline;
|
|
|
|
public readonly int lineNumber;
|
|
|
|
public override string ToString() {
|
|
return $"LineMetrics(hardBreak: {hardBreak}, \n" +
|
|
$"ascent: {ascent}, " +
|
|
$"descent: {descent}, " +
|
|
$"unscaledAscent: {unscaledAscent}, " +
|
|
$"height: {height}, " +
|
|
$"width: {width}, " +
|
|
$"left: {left}, " +
|
|
$"baseline: {baseline}, " +
|
|
$"lineNumber: {lineNumber})";
|
|
}
|
|
|
|
public bool Equals(LineMetrics other) {
|
|
if (ReferenceEquals(null, other)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, other)) {
|
|
return true;
|
|
}
|
|
|
|
return hardBreak == other.hardBreak && ascent.Equals(other.ascent) && descent.Equals(other.descent) &&
|
|
unscaledAscent.Equals(other.unscaledAscent) && height.Equals(other.height) &&
|
|
width.Equals(other.width) && left.Equals(other.left) && baseline.Equals(other.baseline) &&
|
|
lineNumber == other.lineNumber;
|
|
}
|
|
|
|
public override bool Equals(object obj) {
|
|
if (ReferenceEquals(null, obj)) {
|
|
return false;
|
|
}
|
|
|
|
if (ReferenceEquals(this, obj)) {
|
|
return true;
|
|
}
|
|
|
|
if (obj.GetType() != GetType()) {
|
|
return false;
|
|
}
|
|
|
|
return Equals((LineMetrics) obj);
|
|
}
|
|
|
|
public override int GetHashCode() {
|
|
unchecked {
|
|
var hashCode = hardBreak.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ ascent.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ descent.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ unscaledAscent.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ height.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ width.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ left.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ baseline.GetHashCode();
|
|
hashCode = (hashCode * 397) ^ lineNumber;
|
|
return hashCode;
|
|
}
|
|
}
|
|
}
|
|
|
|
public class Paragraph : NativeWrapper {
|
|
internal Paragraph(IntPtr ptr) {
|
|
_setPtr(ptr);
|
|
}
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern float Paragraph_width(IntPtr ptr);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern float Paragraph_height(IntPtr ptr);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern float Paragraph_longestLine(IntPtr ptr);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern float Paragraph_minIntrinsicWidth(IntPtr ptr);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern float Paragraph_maxIntrinsicWidth(IntPtr ptr);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern float Paragraph_alphabeticBaseline(IntPtr ptr);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern float Paragraph_ideographicBaseline(IntPtr ptr);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern bool Paragraph_didExceedMaxLines(IntPtr ptr);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern void Paragraph_layout(IntPtr ptr, float width);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern Float32List Paragraph_getRectsForRange(IntPtr ptr, int start, int end,
|
|
int boxHeightStyle,
|
|
int boxWidthStyle);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern Float32List Paragraph_getRectsForPlaceholders(IntPtr ptr);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern unsafe void Paragraph_getPositionForOffset(IntPtr ptr, float dx, float dy, int* encodedPtr);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern unsafe void Paragraph_getWordBoundary(IntPtr ptr, int offset, int* boundaryPtr);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern unsafe void Paragraph_getLineBoundary(IntPtr ptr, int offset, int* boundaryPtr);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern void Paragraph_paint(IntPtr ptr, IntPtr canvas, float x, float y);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern Float32List Paragraph_computeLineMetrics(IntPtr ptr);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern void Paragraph_dispose(IntPtr ptr);
|
|
|
|
public void layout(ParagraphConstraints constraints) => _layout(constraints.width);
|
|
void _layout(float width) => Paragraph_layout(_ptr, width);
|
|
|
|
List<TextBox> _decodeTextBoxes(float[] encoded, int size) {
|
|
int count = size / 5;
|
|
List<TextBox> boxes = new List<TextBox>();
|
|
int position = 0;
|
|
for (int index = 0; index < count; index += 1) {
|
|
unsafe {
|
|
boxes.Add(TextBox.fromLTRBD(
|
|
encoded[position++],
|
|
encoded[position++],
|
|
encoded[position++],
|
|
encoded[position++],
|
|
(TextDirection) encoded[position++]
|
|
));
|
|
}
|
|
}
|
|
|
|
return boxes;
|
|
}
|
|
|
|
public override void DisposePtr(IntPtr ptr) {
|
|
Paragraph_dispose(ptr);
|
|
}
|
|
|
|
public float width() {
|
|
return Paragraph_width(_ptr);
|
|
}
|
|
|
|
public float height() {
|
|
return Paragraph_height(_ptr);
|
|
}
|
|
|
|
public float longestLine() {
|
|
return Paragraph_longestLine(_ptr);
|
|
}
|
|
|
|
public float minIntrinsicWidth() {
|
|
return Paragraph_minIntrinsicWidth(_ptr);
|
|
}
|
|
|
|
public float maxIntrinsicWidth() {
|
|
return Paragraph_maxIntrinsicWidth(_ptr);
|
|
}
|
|
|
|
public float alphabeticBaseline() {
|
|
return Paragraph_alphabeticBaseline(_ptr);
|
|
}
|
|
|
|
public float ideographicBaseline() {
|
|
return Paragraph_ideographicBaseline(_ptr);
|
|
}
|
|
|
|
public bool didExceedMaxLines() {
|
|
return Paragraph_didExceedMaxLines(_ptr);
|
|
}
|
|
|
|
public List<TextBox> getBoxesForRange(int start, int end,
|
|
BoxHeightStyle boxHeightStyle = BoxHeightStyle.tight,
|
|
BoxWidthStyle boxWidthStyle = BoxWidthStyle.tight) {
|
|
var data = _getBoxesForRange(start, end, (int) boxHeightStyle, (int) boxWidthStyle).toFloatArrayAndFree();
|
|
return _decodeTextBoxes(data, data.Length);
|
|
}
|
|
|
|
// See paragraph.cc for the layout of this return value.
|
|
Float32List _getBoxesForRange(int start, int end, int boxHeightStyle, int boxWidthStyle) =>
|
|
Paragraph_getRectsForRange(_ptr, start, end, boxHeightStyle, boxWidthStyle);
|
|
|
|
|
|
public List<TextBox> getBoxesForPlaceholders() {
|
|
float[] data = _getBoxesForPlaceholders().toFloatArrayAndFree();
|
|
return _decodeTextBoxes(data, data.Length);
|
|
}
|
|
|
|
Float32List _getBoxesForPlaceholders() => Paragraph_getRectsForPlaceholders(_ptr);
|
|
|
|
public unsafe TextPosition getPositionForOffset(Offset offset) {
|
|
int[] encoded = new int[2];
|
|
fixed (int* encodedPtr = encoded) {
|
|
_getPositionForOffset(offset.dx, offset.dy, encodedPtr);
|
|
}
|
|
|
|
return new TextPosition(offset: encoded[0], affinity: (TextAffinity) encoded[1]);
|
|
}
|
|
|
|
unsafe void _getPositionForOffset(float dx, float dy, int* encodedPtr) =>
|
|
Paragraph_getPositionForOffset(_ptr, dx, dy, encodedPtr);
|
|
|
|
public unsafe TextRange getWordBoundary(TextPosition position) {
|
|
int[] boundary = new int[2];
|
|
fixed (int* boundaryPtr = boundary) {
|
|
_getWordBoundary(position.offset, boundaryPtr);
|
|
}
|
|
|
|
return new TextRange(start: boundary[0], end: boundary[1]);
|
|
}
|
|
|
|
unsafe void _getWordBoundary(int offset, int* boundaryPtr) =>
|
|
Paragraph_getWordBoundary(_ptr, offset, boundaryPtr);
|
|
|
|
public unsafe TextRange getLineBoundary(TextPosition position) {
|
|
int[] boundary = new int[2];
|
|
fixed (int* boundaryPtr = boundary) {
|
|
_getLineBoundary(position.offset, boundaryPtr);
|
|
}
|
|
|
|
return new TextRange(start: boundary[0], end: boundary[1]);
|
|
}
|
|
|
|
unsafe void _getLineBoundary(int offset, int* boundaryPtr) =>
|
|
Paragraph_getLineBoundary(_ptr, offset, boundaryPtr);
|
|
|
|
internal void _paint(Canvas canvas, float x, float y) {
|
|
Paragraph_paint(_ptr, canvas._ptr, x, y);
|
|
}
|
|
|
|
public List<LineMetrics> computeLineMetrics() {
|
|
var data = _computeLineMetrics().toFloatArrayAndFree();
|
|
int count = data.Length / 9;
|
|
int position = 0;
|
|
List<LineMetrics> metrics = new List<LineMetrics>();
|
|
|
|
for (int index = 0; index < count; index += 1) {
|
|
unsafe {
|
|
metrics.Add(new LineMetrics(
|
|
hardBreak: data[position++] != 0,
|
|
ascent: data[position++],
|
|
descent: data[position++],
|
|
unscaledAscent: data[position++],
|
|
height: data[position++],
|
|
width: data[position++],
|
|
left: data[position++],
|
|
baseline: data[position++],
|
|
lineNumber: (int) data[position++]
|
|
));
|
|
}
|
|
}
|
|
|
|
return metrics;
|
|
}
|
|
|
|
Float32List _computeLineMetrics() => Paragraph_computeLineMetrics(_ptr);
|
|
}
|
|
|
|
public class ParagraphBuilder : NativeWrapper {
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern IntPtr ParagraphBuilder_constructor(
|
|
int[] encoded,
|
|
int encodeSize,
|
|
byte[] strutData,
|
|
int structDataSize,
|
|
string fontFamily,
|
|
string[] structFontFamily,
|
|
int structFontFamilySize,
|
|
float fontSize,
|
|
float height,
|
|
[MarshalAs(UnmanagedType.LPWStr)] string ellipsis,
|
|
string locale);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static unsafe extern void ParagraphBuilder_pushStyle(
|
|
IntPtr ptr,
|
|
int[] encoded,
|
|
int encodedSize,
|
|
string[] fontFamilies,
|
|
int fontFamiliesSize,
|
|
float fontSize,
|
|
float letterSpacing,
|
|
float wordSpacing,
|
|
float height,
|
|
float decorationThickness,
|
|
string locale,
|
|
IntPtr* backgroundObjects,
|
|
byte[] backgroundData,
|
|
IntPtr* foregroundObjects,
|
|
byte[] foregroundData,
|
|
byte[] shadowsData,
|
|
int shadowDataSize,
|
|
byte[] fontFeaturesData,
|
|
int fontFeatureDataSize
|
|
);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern void ParagraphBuilder_pop(IntPtr ptr);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern IntPtr ParagraphBuilder_addText(IntPtr ptr, [MarshalAs(UnmanagedType.LPWStr)] string text);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern IntPtr ParagraphBuilder_addPlaceholder(IntPtr ptr, float width, float height, int alignment,
|
|
float baselineOffset, int baseline);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern IntPtr ParagraphBuilder_build(IntPtr ptr);
|
|
|
|
[DllImport(NativeBindings.dllName)]
|
|
static extern void ParagraphBuilder_dispose(IntPtr ptr);
|
|
|
|
public ParagraphBuilder(ParagraphStyle style) {
|
|
List<string> strutFontFamilies = null;
|
|
StrutStyle strutStyle = style._strutStyle;
|
|
if (strutStyle != null) {
|
|
strutFontFamilies = new List<string>();
|
|
string fontFamily = strutStyle._fontFamily;
|
|
if (fontFamily != null)
|
|
strutFontFamilies.Add(fontFamily);
|
|
if (strutStyle._fontFamilyFallback != null)
|
|
strutFontFamilies.AddRange(strutStyle._fontFamilyFallback);
|
|
}
|
|
|
|
_setPtr(_constructor(
|
|
style._encoded.ToArray(),
|
|
strutStyle?._encoded.ToArray(),
|
|
style._fontFamily,
|
|
strutFontFamilies?.ToArray(),
|
|
style._fontSize ?? 0,
|
|
style._height ?? 0,
|
|
style._ellipsis,
|
|
_encodeLocale(style._locale)
|
|
));
|
|
}
|
|
|
|
IntPtr _constructor(
|
|
int[] encoded,
|
|
byte[] structData,
|
|
string fontFamily,
|
|
string[] structFontFamily,
|
|
float fontSize,
|
|
float height,
|
|
string ellipsis,
|
|
string locale
|
|
) => ParagraphBuilder_constructor(
|
|
encoded,
|
|
encoded == null ? 0 : encoded.Length,
|
|
structData,
|
|
structData == null ? 0 : structData.Length,
|
|
fontFamily,
|
|
structFontFamily,
|
|
structFontFamily == null ? 0 : structFontFamily.Length,
|
|
fontSize,
|
|
height,
|
|
ellipsis,
|
|
locale
|
|
);
|
|
|
|
public override void DisposePtr(IntPtr ptr) {
|
|
ParagraphBuilder_dispose(ptr);
|
|
}
|
|
|
|
public int placeholderCount {
|
|
get { return _placeholderCount; }
|
|
}
|
|
|
|
int _placeholderCount = 0;
|
|
|
|
public List<float> placeholderScales {
|
|
get { return _placeholderScales; }
|
|
}
|
|
|
|
List<float> _placeholderScales = new List<float>();
|
|
|
|
public void pushStyle(TextStyle style) {
|
|
List<string> fullFontFamilies = new List<string>();
|
|
|
|
fullFontFamilies.Add(style._fontFamily);
|
|
if (style._fontFamilyFallback != null)
|
|
fullFontFamilies.AddRange(style._fontFamilyFallback);
|
|
|
|
byte[] encodedFontFeatures = null;
|
|
List<FontFeature> fontFeatures = style._fontFeatures;
|
|
if (fontFeatures != null) {
|
|
encodedFontFeatures = new byte[fontFeatures.Count * FontFeature._kEncodedSize];
|
|
int byteOffset = 0;
|
|
foreach (FontFeature feature in fontFeatures) {
|
|
var byteFeature = new byte[FontFeature._kEncodedSize - byteOffset];
|
|
Array.Copy(encodedFontFeatures, 0, byteFeature, 0, FontFeature._kEncodedSize);
|
|
feature._encode(byteFeature);
|
|
byteOffset += FontFeature._kEncodedSize;
|
|
}
|
|
}
|
|
|
|
_pushStyle(
|
|
style._encoded.ToArray(),
|
|
fullFontFamilies.ToArray(),
|
|
style._fontSize,
|
|
style._letterSpacing,
|
|
style._wordSpacing,
|
|
style._height,
|
|
style._decorationThickness,
|
|
_encodeLocale(style._locale),
|
|
style._background?._objectPtrs,
|
|
style._background?._data,
|
|
style._foreground?._objectPtrs,
|
|
style._foreground?._data,
|
|
Shadow._encodeShadows(style._shadows),
|
|
encodedFontFeatures
|
|
);
|
|
}
|
|
|
|
unsafe void _pushStyle(
|
|
int[] encoded,
|
|
string[] fontFamilies,
|
|
float? fontSize,
|
|
float? letterSpacing,
|
|
float? wordSpacing,
|
|
float? height,
|
|
float? decorationThickness,
|
|
string locale,
|
|
IntPtr[] backgroundObjects,
|
|
byte[] backgroundData,
|
|
IntPtr[] foregroundObjects,
|
|
byte[] foregroundData,
|
|
byte[] shadowsData,
|
|
byte[] fontFeaturesData
|
|
) {
|
|
fixed (IntPtr* backgroundObjectsPtr = backgroundObjects)
|
|
fixed (IntPtr* foregroundObjectsPtr = foregroundObjects)
|
|
ParagraphBuilder_pushStyle(_ptr,
|
|
encoded,
|
|
encoded.Length,
|
|
fontFamilies,
|
|
fontFamilies.Length,
|
|
fontSize.GetValueOrDefault(0),
|
|
letterSpacing.GetValueOrDefault(0),
|
|
wordSpacing.GetValueOrDefault(0),
|
|
height.GetValueOrDefault(0),
|
|
decorationThickness.GetValueOrDefault(0),
|
|
locale,
|
|
backgroundObjectsPtr,
|
|
backgroundData,
|
|
foregroundObjectsPtr,
|
|
foregroundData,
|
|
shadowsData,
|
|
shadowsData?.Length ?? 0,
|
|
fontFeaturesData,
|
|
fontFeaturesData?.Length ?? 0
|
|
);
|
|
}
|
|
|
|
static string _encodeLocale(Locale locale) => locale?.ToString() ?? "";
|
|
|
|
public void pop() => ParagraphBuilder_pop(_ptr);
|
|
|
|
public void addText(string text) {
|
|
IntPtr error = _addText(text);
|
|
if (error != IntPtr.Zero) {
|
|
throw new Exception(Marshal.PtrToStringAnsi(error));
|
|
}
|
|
}
|
|
|
|
IntPtr _addText(string text) => ParagraphBuilder_addText(_ptr, text);
|
|
|
|
public void addPlaceholder(float width, float height, PlaceholderAlignment alignment,
|
|
TextBaseline baseline,
|
|
float scale = 1.0f,
|
|
float? baselineOffset = null
|
|
) {
|
|
// Require a baseline to be specified if using a baseline-based alignment.
|
|
D.assert(alignment == PlaceholderAlignment.aboveBaseline ||
|
|
alignment == PlaceholderAlignment.belowBaseline ||
|
|
alignment == PlaceholderAlignment.baseline);
|
|
// Default the baselineOffset to height if null. This will place the placeholder
|
|
// fully above the baseline, similar to [PlaceholderAlignment.aboveBaseline].
|
|
float baselineOffsetFloat = baselineOffset ?? height;
|
|
_addPlaceholder(width * scale, height * scale, (int) alignment, baselineOffsetFloat * scale,
|
|
(int) baseline);
|
|
_placeholderCount++;
|
|
_placeholderScales.Add(scale);
|
|
}
|
|
|
|
IntPtr _addPlaceholder(float width, float height, int alignment, float baselineOffset,
|
|
int baseline) => ParagraphBuilder_addPlaceholder(_ptr, width, height, alignment, baselineOffset, baseline);
|
|
|
|
public Paragraph build() {
|
|
Paragraph paragraph = new Paragraph(_build());
|
|
return paragraph;
|
|
}
|
|
|
|
IntPtr _build() => ParagraphBuilder_build(_ptr);
|
|
}
|
|
}
|