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com.unity.uiwidgets/com.unity.uiwidgets/Runtime/ui/painting.cs

3151 行
110 KiB
原始文件 文件历史

using System;
using System.Collections;
using System.Collections.Generic;
using System.Linq;
using System.Runtime.InteropServices;
using System.Text;
using AOT;
using Unity.UIWidgets.animation;
using Unity.UIWidgets.async;
using Unity.UIWidgets.external;
using Unity.UIWidgets.foundation;
using UnityEngine;
using Unity.UIWidgets.ui;
using Rect = Unity.UIWidgets.ui.Rect;
namespace Unity.UIWidgets.ui {
public static class Conversions {
public static UnityEngine.Color toColor(this Color color) {
return new UnityEngine.Color(
color.red / 255f, color.green / 255f, color.blue / 255f, color.alpha / 255f);
}
public static Color32 toColor32(this Color color) {
return new Color32(
(byte) color.red, (byte) color.green, (byte) color.blue, (byte) color.alpha);
}
public static Vector2 toVector(this Offset offset) {
return new Vector2(offset.dx, offset.dy);
}
public static UnityEngine.Rect toRect(this Rect rect) {
return new UnityEngine.Rect(rect.left, rect.top, rect.width, rect.height);
}
public static float alignToPixel(this float v, float devicePixelRatio) {
return Mathf.Round(v * devicePixelRatio) / devicePixelRatio;
}
internal static Color _scaleAlpha(this Color a, float factor) {
return a.withAlpha((a.alpha * factor).round().clamp(0, 255));
}
}
static class PaintingUtils {
internal static bool _rectIsValid(Rect rect) {
D.assert(rect != null, () => "Rect argument was null.");
D.assert(!rect.hasNaN, () => "Rect argument contained a NaN value.");
return true;
}
internal static bool _offsetIsValid(Offset offset) {
D.assert(offset != null, () => "Offset argument was null.");
D.assert(!offset.dx.isNaN() && !offset.dy.isNaN(), () => "Offset argument contained a NaN value.");
return true;
}
internal static bool _matrix4IsValid(float[] matrix4) {
D.assert(matrix4 != null, () => "Matrix4 argument was null.");
D.assert(matrix4.Length == 16, () => "Matrix4 must have 16 entries.");
D.assert(matrix4.All((float value) => value.isFinite()), () => "Matrix4 entries must be finite.");
return true;
}
internal static bool _rrectIsValid(RRect rrect) {
D.assert(rrect != null, () => "RRect argument was null.");
D.assert(!rrect.hasNaN, () => "RRect argument contained a NaN value.");
return true;
}
internal static bool _radiusIsValid(Radius radius) {
D.assert(radius != null, () => "Radius argument was null.");
D.assert(!radius.x.isNaN() && !radius.y.isNaN(), () => "Radius argument contained a NaN value.");
return true;
}
internal static Color _scaleAlpha(Color a, float factor) {
return a.withAlpha((a.alpha * factor).round().clamp(0, 255));
}
internal static unsafe int getInt32(this byte[] bytes, int byteOffset) {
D.assert(byteOffset % 4 == 0);
fixed (byte* b = &bytes[byteOffset]) {
return *(int*) b;
}
}
internal static unsafe void setInt32(this byte[] bytes, int byteOffset, int value) {
D.assert(byteOffset % 4 == 0);
fixed (byte* b = &bytes[byteOffset]) {
*(int*) b = value;
}
}
internal static unsafe float getFloat32(this byte[] bytes, int byteOffset) {
D.assert(byteOffset % 4 == 0);
fixed (byte* b = &bytes[byteOffset]) {
return *(float*) b;
}
}
internal static unsafe void setFloat32(this byte[] bytes, int byteOffset, float value) {
D.assert(byteOffset % 4 == 0);
fixed (byte* b = &bytes[byteOffset]) {
*(float*) b = value;
}
}
internal static T[] range<T>(this T[] data, int index, int length)
{
T[] result = new T[length];
Array.Copy(data, index, result, 0, length);
return result;
}
internal static uint[] _encodeColorList(List<Color> colors) {
int colorCount = colors.Count;
var result = new uint[colorCount];
for (int i = 0; i < colorCount; ++i)
result[i] = colors[i].value;
return result;
}
internal static float[] _encodePointList(List<Offset> points) {
D.assert(points != null);
int pointCount = points.Count;
var result = new float[pointCount * 2];
for (int i = 0; i < pointCount; ++i) {
int xIndex = i * 2;
int yIndex = xIndex + 1;
Offset point = points[i];
D.assert(_offsetIsValid(point));
result[xIndex] = point.dx;
result[yIndex] = point.dy;
}
return result;
}
internal static float[] _encodeTwoPoints(Offset pointA, Offset pointB) {
D.assert(_offsetIsValid(pointA));
D.assert(_offsetIsValid(pointB));
var result = new float[4];
result[0] = pointA.dx;
result[1] = pointA.dy;
result[2] = pointB.dx;
result[3] = pointB.dy;
return result;
}
}
public class Color : IEquatable<Color> {
public Color(uint value) {
this.value = value & 0xFFFFFFFF;
}
public static readonly Color clear = new Color(0x00000000);
public static readonly Color black = new Color(0xFF000000);
public static readonly Color white = new Color(0xFFFFFFFF);
public static Color fromARGB(int a, int r, int g, int b) {
return new Color(
(uint) (((a & 0xff) << 24) |
((r & 0xff) << 16) |
((g & 0xff) << 8) |
(b & 0xff)));
}
public static Color fromRGBO(int r, int g, int b, float opacity) {
return new Color(
(uint) ((((int) (opacity * 0xff) & 0xff) << 24) |
((r & 0xff) << 16) |
((g & 0xff) << 8) |
(b & 0xff)));
}
public uint value;
public int alpha {
get { return (int) ((0xff000000 & value) >> 24); }
}
public float opacity {
get { return alpha / 255.0f; }
}
public int red {
get { return (int) ((0x00ff0000 & value) >> 16); }
}
public int green {
get { return (int) ((0x0000ff00 & value) >> 8); }
}
public int blue {
get { return (int) ((0x000000ff & value) >> 0); }
}
public Color withAlpha(int a) {
return fromARGB(a, red, green, blue);
}
public Color withOpacity(float opacity) {
return withAlpha((int) (opacity * 255));
}
public Color withRed(int r) {
return fromARGB(alpha, r, green, blue);
}
public Color withGreen(int g) {
return fromARGB(alpha, red, g, blue);
}
public Color withBlue(int b) {
return fromARGB(alpha, red, green, b);
}
static float _linearizeColorComponent(float component) {
if (component <= 0.03928f) {
return component / 12.92f;
}
return Mathf.Pow((component + 0.055f) / 1.055f, 2.4f);
}
public float computeLuminance() {
float R = _linearizeColorComponent((float) red / 0xFF);
float G = _linearizeColorComponent((float) green / 0xFF);
float B = _linearizeColorComponent((float) blue / 0xFF);
return 0.2126f * R + 0.7152f * G + 0.0722f * B;
}
public static Color lerp(Color a, Color b, float t) {
if (a == null && b == null) {
return null;
}
if (a == null) {
return b._scaleAlpha(t);
}
if (b == null) {
return a._scaleAlpha(1.0f - t);
}
return fromARGB(
((int) MathUtils.lerpNullableFloat(a.alpha, b.alpha, t)).clamp(0, 255),
((int) MathUtils.lerpNullableFloat(a.red, b.red, t)).clamp(0, 255),
((int) MathUtils.lerpNullableFloat(a.green, b.green, t)).clamp(0, 255),
((int) MathUtils.lerpNullableFloat(a.blue, b.blue, t)).clamp(0, 255)
);
}
public static Color alphaBlend(Color foreground, Color background) {
int alpha = foreground.alpha;
if (alpha == 0x00) {
// Foreground completely transparent.
return background;
}
int invAlpha = 0xff - alpha;
int backAlpha = background.alpha;
if (backAlpha == 0xff) {
// Opaque background case
return fromARGB(
0xff,
(alpha * foreground.red + invAlpha * background.red) / 0xff,
(alpha * foreground.green + invAlpha * background.green) / 0xff,
(alpha * foreground.blue + invAlpha * background.blue) / 0xff
);
}
else {
// General case
backAlpha = (backAlpha * invAlpha) / 0xff;
int outAlpha = alpha + backAlpha;
D.assert(outAlpha != 0x00);
return fromARGB(
outAlpha,
(foreground.red * alpha + background.red * backAlpha) / outAlpha,
(foreground.green * alpha + background.green * backAlpha) / outAlpha,
(foreground.blue * alpha + background.blue * backAlpha) / outAlpha);
}
}
public static int getAlphaFromOpacity(float opacity) {
return (opacity.clamp(0.0f, 1.0f) * 255).round();
}
public bool Equals(Color other) {
if (ReferenceEquals(null, other)) {
return false;
}
if (ReferenceEquals(this, other)) {
return true;
}
return value == other.value;
}
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((Color) obj);
}
public override int GetHashCode() {
return value.GetHashCode();
}
public static bool operator ==(Color a, Color b) {
return ReferenceEquals(a, null) ? ReferenceEquals(b, null) : a.Equals(b);
}
public static bool operator !=(Color a, Color b) {
return !(a == b);
}
public override string ToString() {
return $"Color(0x{value:X8})";
}
}
public enum BlendMode {
clear,
src,
dst,
srcOver,
dstOver,
srcIn,
dstIn,
srcOut,
dstOut,
srcATop,
dstATop,
xor,
plus,
// REF: https://www.w3.org/TR/compositing-1/#blendingseparable
modulate,
screen,
overlay,
darken,
lighten,
colorDodge,
colorBurn,
hardLight,
softLight,
difference,
exclusion,
multiply,
// REF: https://www.w3.org/TR/compositing-1/#blendingnonseparable
hue,
saturation,
color,
luminosity,
}
public enum FilterQuality {
none,
low,
medium,
high,
}
public enum StrokeCap {
butt,
round,
square,
}
public enum StrokeJoin {
miter,
round,
bevel,
}
public enum PaintingStyle {
fill,
stroke,
}
public enum Clip {
none,
hardEdge,
antiAlias,
antiAliasWithSaveLayer,
}
public static partial class ui_ {
internal const int _kDoNotResizeDimension = -1;
}
public class Paint {
internal readonly byte[] _data = new byte[_kDataByteCount];
const int _kIsAntiAliasIndex = 0;
const int _kColorIndex = 1;
const int _kBlendModeIndex = 2;
const int _kStyleIndex = 3;
const int _kStrokeWidthIndex = 4;
const int _kStrokeCapIndex = 5;
const int _kStrokeJoinIndex = 6;
const int _kStrokeMiterLimitIndex = 7;
const int _kFilterQualityIndex = 8;
const int _kMaskFilterIndex = 9;
const int _kMaskFilterBlurStyleIndex = 10;
const int _kMaskFilterSigmaIndex = 11;
const int _kInvertColorIndex = 12;
const int _kDitherIndex = 13;
const int _kIsAntiAliasOffset = _kIsAntiAliasIndex << 2;
const int _kColorOffset = _kColorIndex << 2;
const int _kBlendModeOffset = _kBlendModeIndex << 2;
const int _kStyleOffset = _kStyleIndex << 2;
const int _kStrokeWidthOffset = _kStrokeWidthIndex << 2;
const int _kStrokeCapOffset = _kStrokeCapIndex << 2;
const int _kStrokeJoinOffset = _kStrokeJoinIndex << 2;
const int _kStrokeMiterLimitOffset = _kStrokeMiterLimitIndex << 2;
const int _kFilterQualityOffset = _kFilterQualityIndex << 2;
const int _kMaskFilterOffset = _kMaskFilterIndex << 2;
const int _kMaskFilterBlurStyleOffset = _kMaskFilterBlurStyleIndex << 2;
const int _kMaskFilterSigmaOffset = _kMaskFilterSigmaIndex << 2;
const int _kInvertColorOffset = _kInvertColorIndex << 2;
const int _kDitherOffset = _kDitherIndex << 2;
// If you add more fields, remember to update _kDataByteCount.
const int _kDataByteCount = 56;
object[] _objects;
internal IntPtr[] _objectPtrs;
const int _kShaderIndex = 0;
const int _kColorFilterIndex = 1;
const int _kImageFilterIndex = 2;
const int _kObjectCount = 3; // Must be one larger than the largest index.
public Paint() {
if (enableDithering) {
_dither = true;
}
}
public bool isAntiAlias {
get { return _data.getInt32(_kIsAntiAliasOffset) == 0; }
set {
int encoded = value ? 0 : 1;
_data.setInt32(_kIsAntiAliasOffset, encoded);
}
}
const uint _kColorDefault = 0xFF000000;
public Color color {
get {
int encoded = _data.getInt32(_kColorOffset);
return new Color((uint) (encoded ^ _kColorDefault));
}
set {
D.assert(value != null);
int encoded = (int) (value.value ^ _kColorDefault);
_data.setInt32(_kColorOffset, encoded);
}
}
const int _kBlendModeDefault = (int) BlendMode.srcOver;
public BlendMode blendMode {
get {
int encoded = _data.getInt32(_kBlendModeOffset);
return (BlendMode) (encoded ^ _kBlendModeDefault);
}
set {
int encoded = (int) value ^ _kBlendModeDefault;
_data.setInt32(_kBlendModeOffset, encoded);
}
}
public PaintingStyle style {
get { return (PaintingStyle) _data.getInt32(_kStyleOffset); }
set {
int encoded = (int) value;
_data.setInt32(_kStyleOffset, encoded);
}
}
public float strokeWidth {
get { return _data.getFloat32(_kStrokeWidthOffset); }
set {
float encoded = value;
_data.setFloat32(_kStrokeWidthOffset, encoded);
}
}
public StrokeCap strokeCap {
get { return (StrokeCap) (_data.getInt32(_kStrokeCapOffset)); }
set {
int encoded = (int) value;
_data.setInt32(_kStrokeCapOffset, encoded);
}
}
public StrokeJoin strokeJoin {
get { return (StrokeJoin) (_data.getInt32(_kStrokeJoinOffset)); }
set {
int encoded = (int) value;
_data.setInt32(_kStrokeJoinOffset, encoded);
}
}
const float _kStrokeMiterLimitDefault = 4.0f;
public float strokeMiterLimit {
get { return _data.getFloat32(_kStrokeMiterLimitOffset) + _kStrokeMiterLimitDefault; }
set {
float encoded = value - _kStrokeMiterLimitDefault;
_data.setFloat32(_kStrokeMiterLimitOffset, encoded);
}
}
public MaskFilter maskFilter {
get {
switch (_data.getInt32(_kMaskFilterOffset)) {
case MaskFilter._TypeNone:
return null;
case MaskFilter._TypeBlur:
return MaskFilter.blur(
(BlurStyle) (_data.getInt32(_kMaskFilterBlurStyleOffset)),
_data.getFloat32(_kMaskFilterSigmaOffset)
);
}
return null;
}
set {
if (value == null) {
_data.setInt32(_kMaskFilterOffset, MaskFilter._TypeNone);
_data.setInt32(_kMaskFilterBlurStyleOffset, 0);
_data.setFloat32(_kMaskFilterSigmaOffset, 0.0f);
}
else {
// For now we only support one kind of MaskFilter, so we don"t need to
// check what the type is if it"s not null.
_data.setInt32(_kMaskFilterOffset, MaskFilter._TypeBlur);
_data.setInt32(_kMaskFilterBlurStyleOffset, (int) value._style);
_data.setFloat32(_kMaskFilterSigmaOffset, value._sigma);
}
}
}
public FilterQuality filterQuality {
get { return (FilterQuality) (_data.getInt32(_kFilterQualityOffset)); }
set {
int encoded = (int) value;
_data.setInt32(_kFilterQualityOffset, encoded);
}
}
public Shader shader {
get { return _objects?[_kShaderIndex] as Shader; }
set {
if (value == null) {
if (_objects != null) {
_objects[_kShaderIndex] = null;
_objectPtrs[_kShaderIndex] = IntPtr.Zero;
}
}
else {
_objects = _objects ?? new object[_kObjectCount];
_objectPtrs = _objectPtrs ?? new IntPtr[_kObjectCount];
_objects[_kShaderIndex] = value;
_objectPtrs[_kShaderIndex] = value._ptr;
}
}
}
public ColorFilter colorFilter {
get { return ((_ColorFilter) _objects?[_kColorFilterIndex])?.creator; }
set {
_ColorFilter nativeFilter = value?._toNativeColorFilter();
if (nativeFilter == null) {
if (_objects != null) {
_objects[_kColorFilterIndex] = null;
_objectPtrs[_kColorFilterIndex] = IntPtr.Zero;
}
}
else {
_objects = _objects ?? new object[_kObjectCount];
_objectPtrs = _objectPtrs ?? new IntPtr[_kObjectCount];
if (((_ColorFilter) _objects[_kColorFilterIndex])?.creator != value) {
_objects[_kColorFilterIndex] = nativeFilter;
_objectPtrs[_kColorFilterIndex] = nativeFilter._ptr;
}
}
}
}
public ImageFilter imageFilter {
get { return ((_ImageFilter) _objects?[_kImageFilterIndex])?.creator; }
set {
_ImageFilter nativeFilter = value?._toNativeImageFilter();
if (nativeFilter == null) {
if (_objects != null) {
_objects[_kImageFilterIndex] = null;
_objectPtrs[_kImageFilterIndex] = IntPtr.Zero;
}
}
else {
_objects = _objects ?? new object[_kObjectCount];
_objectPtrs = _objectPtrs ?? new IntPtr[_kObjectCount];
if (((_ImageFilter) _objects[_kImageFilterIndex])?.creator != value) {
_objects[_kImageFilterIndex] = nativeFilter;
_objectPtrs[_kImageFilterIndex] = nativeFilter._ptr;
}
}
}
}
public bool invertColors {
get { return _data.getInt32(_kInvertColorOffset) == 1; }
set { _data.setInt32(_kInvertColorOffset, value ? 1 : 0); }
}
bool _dither {
get { return _data.getInt32(_kDitherOffset) == 1; }
set { _data.setInt32(_kDitherOffset, value ? 1 : 0); }
}
static bool enableDithering = false;
public override string ToString() {
var result = new StringBuilder();
string semicolon = "";
result.Append("Paint(");
if (style == PaintingStyle.stroke) {
result.Append($"{style}");
if (strokeWidth != 0.0f) {
result.Append($" {strokeWidth:F1}");
}
else {
result.Append(" hairline");
}
if (strokeCap != StrokeCap.butt) {
result.Append($" {strokeCap}");
}
if (strokeJoin == StrokeJoin.miter) {
if (strokeMiterLimit != _kStrokeMiterLimitDefault) {
result.Append($" {strokeJoin} up to {strokeMiterLimit:F1}");
}
}
else {
result.Append($" {strokeJoin}");
}
semicolon = "; ";
}
if (isAntiAlias != true) {
result.Append($"{semicolon}antialias off");
semicolon = "; ";
}
if (color?.value != _kColorDefault) {
if (color != null) {
result.Append($"{semicolon}{color}");
}
else {
result.Append($"{semicolon}no color");
}
semicolon = "; ";
}
if ((int) blendMode != _kBlendModeDefault) {
result.Append($"{semicolon}{blendMode}");
semicolon = "; ";
}
if (colorFilter != null) {
result.Append($"{semicolon}colorFilter: {colorFilter}");
semicolon = "; ";
}
if (maskFilter != null) {
result.Append($"{semicolon}maskFilter: {maskFilter}");
semicolon = "; ";
}
if (filterQuality != FilterQuality.none) {
result.Append($"{semicolon}filterQuality: {filterQuality}");
semicolon = "; ";
}
if (shader != null) {
result.Append($"{semicolon}shader: {shader}");
semicolon = "; ";
}
if (imageFilter != null) {
result.Append($"{semicolon}imageFilter: {imageFilter}");
semicolon = "; ";
}
if (invertColors) {
result.Append($"{semicolon}invert: {invertColors}");
}
if (_dither) {
result.Append($"{semicolon}dither: {_dither}");
}
result.Append(")");
return result.ToString();
}
}
public enum ImageByteFormat {
rawRgba,
rawUnmodified,
png,
}
public enum PixelFormat {
rgba8888,
bgra8888,
}
[StructLayout(LayoutKind.Sequential)]
struct _ImageInfo {
internal _ImageInfo(int width, int height, int format, int? rowBytes = null) {
this.width = width;
this.height = height;
this.format = format;
this.rowBytes = rowBytes ?? width * 4;
}
public int width;
public int height;
public int format;
public int rowBytes;
}
public class Image : NativeWrapperDisposable, IEquatable<Image> {
internal Image(IntPtr ptr) : base(ptr) {
}
public override void DisposePtr(IntPtr ptr) {
Image_dispose(ptr);
}
public int width => Image_width(_ptr);
public int height => Image_height(_ptr);
public Future<byte[]> toByteData(
ImageByteFormat format = ImageByteFormat.rawRgba
) {
return ui_._futurize(
(_Callback<byte[]> callback) => {
GCHandle callbackHandle = GCHandle.Alloc(callback);
IntPtr error = Image_toByteData(_ptr,
(int) format, _toByteDataCallback, (IntPtr) callbackHandle);
if (error != IntPtr.Zero) {
callbackHandle.Free();
return Marshal.PtrToStringAnsi(error);
}
return null;
});
}
[MonoPInvokeCallback(typeof(Image_toByteDataCallback))]
static void _toByteDataCallback(IntPtr callbackHandle, IntPtr data, int length) {
GCHandle handle = (GCHandle) callbackHandle;
var callback = (_Callback<byte[]>) handle.Target;
handle.Free();
if (!Isolate.checkExists()) {
return;
}
try {
if (data == IntPtr.Zero || length == 0) {
callback(new byte[0]);
}
else {
var bytes = new byte[length];
Marshal.Copy(data, bytes, 0, length);
callback(bytes);
}
}
catch (Exception ex) {
Debug.LogException(ex);
}
}
public override string ToString() => $"[{width}\u00D7{height}]";
[DllImport(NativeBindings.dllName)]
static extern void Image_dispose(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern int Image_width(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern int Image_height(IntPtr ptr);
delegate void Image_toByteDataCallback(IntPtr callbackHandle, IntPtr data, int length);
[DllImport(NativeBindings.dllName)]
static extern IntPtr Image_toByteData(IntPtr ptr, int format, Image_toByteDataCallback callback,
IntPtr callbackHandle);
public bool Equals(Image other) {
return other != null && width == other.width && height == other.height && _ptr.Equals(other._ptr);
}
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((Image) obj);
}
public static bool operator ==(Image left, Image right) {
return Equals(left, right);
}
public static bool operator !=(Image left, Image right) {
return !Equals(left, right);
}
public override int GetHashCode() {
unchecked {
var hashCode = (width != null ? width.GetHashCode() : 0);
hashCode = (hashCode * 397) ^(height != null ? height.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (_ptr != null ? _ptr.GetHashCode() : 0);
return hashCode;
}
}
}
/*
* TODO: FrameInfo, Codec
*/
public delegate void ImageDecoderCallback(Image result);
public class FrameInfo : NativeWrapper {
internal FrameInfo(IntPtr ptr) : base(ptr) {
}
public override void DisposePtr(IntPtr ptr) {
FrameInfo_dispose(ptr);
}
public TimeSpan duration => TimeSpan.FromMilliseconds(_durationMillis);
int _durationMillis => FrameInfo_durationMillis(_ptr);
public Image image => new Image(FrameInfo_image(_ptr));
[DllImport(NativeBindings.dllName)]
static extern void FrameInfo_dispose(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern int FrameInfo_durationMillis(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern IntPtr FrameInfo_image(IntPtr ptr);
}
public class Codec : NativeWrapperDisposable {
internal Codec(IntPtr ptr) : base(ptr) {
}
public override void DisposePtr(IntPtr ptr) {
Codec_dispose(ptr);
}
public int frameCount => Codec_frameCount(_ptr);
public int repetitionCount => Codec_repetitionCount(_ptr);
public Future<FrameInfo> getNextFrame() {
return ui_._futurize<FrameInfo>(_getNextFrame);
}
string _getNextFrame(_Callback<FrameInfo> callback) {
GCHandle callbackHandle = GCHandle.Alloc(callback);
IntPtr error = Codec_getNextFrame(_ptr, _getNextFrameCallback, (IntPtr) callbackHandle);
if (error != IntPtr.Zero) {
callbackHandle.Free();
return Marshal.PtrToStringAnsi(error);
}
return null;
}
[MonoPInvokeCallback(typeof(Codec_getNextFrameCallback))]
static void _getNextFrameCallback(IntPtr callbackHandle, IntPtr ptr) {
GCHandle handle = (GCHandle) callbackHandle;
var callback = (_Callback<FrameInfo>) handle.Target;
handle.Free();
if (!Isolate.checkExists()) {
return;
}
try {
callback(ptr == IntPtr.Zero ? null : new FrameInfo(ptr));
}
catch (Exception ex) {
Debug.LogException(ex);
}
}
internal static unsafe string _instantiateImageCodec(byte[] list, _Callback<Codec> callback,
_ImageInfo? imageInfo, int targetWidth, int targetHeight) {
GCHandle callbackHandle = GCHandle.Alloc(callback);
fixed (byte* bytes = list) {
IntPtr error = Codec_instantiateImageCodec(bytes, list?.Length ?? 0,
_instantiateImageCodecCallback, (IntPtr) callbackHandle,
imageInfo ?? default, imageInfo.HasValue, targetWidth, targetHeight);
if (error != IntPtr.Zero) {
callbackHandle.Free();
return Marshal.PtrToStringAnsi(error);
}
}
return null;
}
[MonoPInvokeCallback(typeof(Codec_instantiateImageCodecCallback))]
static void _instantiateImageCodecCallback(IntPtr callbackHandle, IntPtr ptr) {
GCHandle handle = (GCHandle) callbackHandle;
var callback = (_Callback<Codec>) handle.Target;
handle.Free();
try {
D.assert(ptr != IntPtr.Zero);
callback(new Codec(ptr));
}
catch (Exception ex) {
Debug.LogException(ex);
}
}
[DllImport(NativeBindings.dllName)]
static extern void Codec_dispose(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern int Codec_frameCount(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern int Codec_repetitionCount(IntPtr ptr);
delegate void Codec_getNextFrameCallback(IntPtr callbackHandle, IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern IntPtr Codec_getNextFrame(IntPtr ptr, Codec_getNextFrameCallback callback, IntPtr callbackHandle);
delegate void Codec_instantiateImageCodecCallback(IntPtr callbackHandle, IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern unsafe IntPtr Codec_instantiateImageCodec(byte* list, int listLength,
Codec_instantiateImageCodecCallback callback,
IntPtr callbackHandle, _ImageInfo imageInfo, bool hasImageInfo, int targetWidth, int targetHeight);
}
public static partial class ui_ {
public static Future<Codec> instantiateImageCodec(byte[] list, int? targetWidth = null,
int? targetHeight = null) {
return _futurize(
(_Callback<Codec> callback) => Codec._instantiateImageCodec(list, callback, null,
targetWidth ?? _kDoNotResizeDimension, targetHeight ?? _kDoNotResizeDimension)
);
}
public static void decodeImageFromList(byte[] list, ImageDecoderCallback callback) {
_decodeImageFromListAsync(list, callback);
}
static Future _decodeImageFromListAsync(byte[] list, ImageDecoderCallback callback) {
return instantiateImageCodec(list).then_(codec => {
return codec.getNextFrame().then_(frameInfo => { callback(frameInfo.image); });
});
}
public static void decodeImageFromPixels(
byte[] pixels,
int width,
int height,
PixelFormat format,
ImageDecoderCallback callback,
int? rowBytes = null, int? targetWidth = null, int? targetHeight = null
) {
_ImageInfo imageInfo = new _ImageInfo(width, height, (int) format, rowBytes);
Future<Codec> codecFuture = _futurize(
(_Callback<Codec> callback1) => Codec._instantiateImageCodec(pixels, callback1, imageInfo,
targetWidth ?? _kDoNotResizeDimension, targetHeight ?? _kDoNotResizeDimension)
);
codecFuture.then_<FrameInfo>(codec => codec.getNextFrame())
.then_(frameInfo => callback(frameInfo.image));
}
}
public enum PathFillType {
nonZero,
evenOdd,
}
public enum PathOperation {
difference,
intersect,
union,
xor,
reverseDifference,
}
public abstract class EngineLayer : NativeWrapper {
protected EngineLayer(IntPtr ptr) : base(ptr) {
}
public override void DisposePtr(IntPtr ptr) {
EngineLayer_dispose(ptr);
}
[DllImport(NativeBindings.dllName)]
static extern void EngineLayer_dispose(IntPtr ptr);
}
public class Path : NativeWrapper {
public Path() : base(Path_constructor()) {
}
public Path(IntPtr ptr) : base(ptr) {
}
public override void DisposePtr(IntPtr ptr) {
Path_dispose(ptr);
}
public static Path from(Path source) {
return new Path(Path_clone(source._ptr));
}
public PathFillType fillType {
get { return (PathFillType) Path_getFillType(_ptr); }
set { Path_setFillType(_ptr, (int) value); }
}
public void moveTo(float x, float y) {
Path_moveTo(_ptr, x, y);
}
public void relativeMoveTo(float dx, float dy) {
Path_relativeMoveTo(_ptr, dx, dy);
}
public void lineTo(float x, float y) {
Path_lineTo(_ptr, x, y);
}
public void relativeLineTo(float dx, float dy) {
Path_relativeLineTo(_ptr, dx, dy);
}
public void quadraticBezierTo(float x1, float y1, float x2, float y2) {
Path_quadraticBezierTo(_ptr, x1, y1, x2, y2);
}
public void relativeQuadraticBezierTo(float x1, float y1, float x2, float y2) {
Path_relativeQuadraticBezierTo(_ptr, x1, y1, x2, y2);
}
public void cubicTo(float x1, float y1, float x2, float y2, float x3, float y3) {
Path_cubicTo(_ptr, x1, y1, x2, y2, x3, y3);
}
public void relativeCubicTo(float x1, float y1, float x2, float y2, float x3, float y3) {
Path_relativeCubicTo(_ptr, x1, y1, x2, y2, x3, y3);
}
public void conicTo(float x1, float y1, float x2, float y2, float w) {
Path_conicTo(_ptr, x1, y1, x2, y2, w);
}
public void relativeConicTo(float x1, float y1, float x2, float y2, float w) {
Path_relativeConicTo(_ptr, x1, y1, x2, y2, w);
}
public void arcTo(Rect rect, float startAngle, float sweepAngle, bool forceMoveTo) {
D.assert(PaintingUtils._rectIsValid(rect));
Path_arcTo(_ptr, rect.left, rect.top, rect.right, rect.bottom, startAngle, sweepAngle,
forceMoveTo);
}
public void arcToPoint(Offset arcEnd,
Radius radius = null,
float rotation = 0.0f,
bool largeArc = false,
bool clockwise = true) {
radius = radius ?? Radius.zero;
D.assert(PaintingUtils._offsetIsValid(arcEnd));
D.assert(PaintingUtils._radiusIsValid(radius));
Path_arcToPoint(_ptr, arcEnd.dx, arcEnd.dy, radius.x, radius.y, rotation,
largeArc, clockwise);
}
public void relativeArcToPoint(Offset arcEndDelta,
Radius radius = null,
float rotation = 0.0f,
bool largeArc = false,
bool clockwise = true) {
radius = radius ?? Radius.zero;
D.assert(PaintingUtils._offsetIsValid(arcEndDelta));
D.assert(PaintingUtils._radiusIsValid(radius));
Path_relativeArcToPoint(_ptr, arcEndDelta.dx, arcEndDelta.dy, radius.x, radius.y, rotation,
largeArc, clockwise);
}
public void addRect(Rect rect) {
D.assert(PaintingUtils._rectIsValid(rect));
Path_addRect(_ptr, rect.left, rect.top, rect.right, rect.bottom);
}
public void addOval(Rect oval) {
D.assert(PaintingUtils._rectIsValid(oval));
Path_addOval(_ptr, oval.left, oval.top, oval.right, oval.bottom);
}
public void addArc(Rect oval, float startAngle, float sweepAngle) {
D.assert(PaintingUtils._rectIsValid(oval));
Path_addArc(_ptr, oval.left, oval.top, oval.right, oval.bottom, startAngle, sweepAngle);
}
public unsafe void addPolygon(List<Offset> points, bool close) {
D.assert(points != null);
float[] list = PaintingUtils._encodePointList(points);
fixed (float* listPtr = list) {
Path_addPolygon(_ptr, listPtr, list.Length, close);
}
}
public unsafe void addRRect(RRect rrect) {
D.assert(PaintingUtils._rrectIsValid(rrect));
float[] value32 = rrect._value32;
fixed (float* value32Ptr = value32) {
Path_addRRect(_ptr, value32Ptr);
}
}
public unsafe void addPath(Path path, Offset offset, float[] matrix4 = null) {
D.assert(path != null); // path is checked on the engine side
D.assert(PaintingUtils._offsetIsValid(offset));
if (matrix4 != null) {
D.assert(PaintingUtils._matrix4IsValid(matrix4));
fixed (float* matrix4Ptr = matrix4) {
Path_addPathWithMatrix(_ptr, path._ptr, offset.dx, offset.dy, matrix4Ptr);
}
}
else {
Path_addPath(_ptr, path._ptr, offset.dx, offset.dy);
}
}
public unsafe void extendWithPath(Path path, Offset offset, float[] matrix4 = null) {
D.assert(path != null);
D.assert(PaintingUtils._offsetIsValid(offset));
if (matrix4 != null) {
D.assert(PaintingUtils._matrix4IsValid(matrix4));
fixed (float* matrix4Ptr = matrix4) {
Path_extendWithPathAndMatrix(_ptr, path._ptr, offset.dx, offset.dy, matrix4Ptr);
}
}
else {
Path_extendWithPath(_ptr, path._ptr, offset.dx, offset.dy);
}
}
public void close() {
Path_close(_ptr);
}
public void reset() {
Path_reset(_ptr);
}
public bool contains(Offset point) {
D.assert(PaintingUtils._offsetIsValid(point));
return Path_contains(_ptr, point.dx, point.dy);
}
public Path shift(Offset offset) {
D.assert(PaintingUtils._offsetIsValid(offset));
return new Path(Path_shift(_ptr, offset.dx, offset.dy));
}
public unsafe Path transform(float[] matrix4) {
D.assert(PaintingUtils._matrix4IsValid(matrix4));
fixed (float* matrixPtr = matrix4) {
return new Path(Path_transform(_ptr, matrixPtr));
}
}
public unsafe Rect getBounds() {
float[] rect = new float[4];
fixed (float* rectPtr = rect) {
Path_getBounds(_ptr, rectPtr);
}
return Rect.fromLTRB(rect[0], rect[1], rect[2], rect[3]);
}
public static Path combine(PathOperation operation, Path path1, Path path2) {
D.assert(path1 != null);
D.assert(path2 != null);
Path path = new Path();
if (Path_op(path._ptr, path1._ptr, path2._ptr, (int) operation)) {
return path;
}
throw new Exception(
"Path.combine() failed. This may be due an invalid path; in particular, check for NaN values.");
}
public PathMetrics computeMetrics(bool forceClose = false) {
return new PathMetrics(this, forceClose);
}
[DllImport(NativeBindings.dllName)]
static extern IntPtr Path_constructor();
[DllImport(NativeBindings.dllName)]
static extern void Path_dispose(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern IntPtr Path_clone(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern int Path_getFillType(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern void Path_setFillType(IntPtr ptr, int fillType);
[DllImport(NativeBindings.dllName)]
static extern void Path_moveTo(IntPtr ptr, float x, float y);
[DllImport(NativeBindings.dllName)]
static extern void Path_relativeMoveTo(IntPtr ptr, float dx, float dy);
[DllImport(NativeBindings.dllName)]
static extern void Path_lineTo(IntPtr ptr, float x, float y);
[DllImport(NativeBindings.dllName)]
static extern void Path_relativeLineTo(IntPtr ptr, float dx, float dy);
[DllImport(NativeBindings.dllName)]
static extern void Path_quadraticBezierTo(IntPtr ptr, float x1, float y1, float x2, float y2);
[DllImport(NativeBindings.dllName)]
static extern void Path_relativeQuadraticBezierTo(IntPtr ptr, float x1, float y1, float x2, float y2);
[DllImport(NativeBindings.dllName)]
static extern void Path_cubicTo(IntPtr ptr, float x1, float y1, float x2, float y2, float x3, float y3);
[DllImport(NativeBindings.dllName)]
static extern void Path_relativeCubicTo(IntPtr ptr, float x1, float y1, float x2, float y2, float x3,
float y3);
[DllImport(NativeBindings.dllName)]
static extern void Path_conicTo(IntPtr ptr, float x1, float y1, float x2, float y2, float w);
[DllImport(NativeBindings.dllName)]
static extern void Path_relativeConicTo(IntPtr ptr, float x1, float y1, float x2, float y2, float w);
[DllImport(NativeBindings.dllName)]
static extern void Path_arcTo(IntPtr ptr, float left, float top, float right, float bottom,
float startAngle, float sweepAngle, bool forceMoveTo);
[DllImport(NativeBindings.dllName)]
static extern void Path_arcToPoint(IntPtr ptr, float arcEndX, float arcEndY, float radiusX,
float radiusY, float rotation, bool largeArc, bool clockwise);
[DllImport(NativeBindings.dllName)]
static extern void Path_relativeArcToPoint(IntPtr ptr, float arcEndX, float arcEndY, float radiusX,
float radiusY, float rotation, bool largeArc, bool clockwise);
[DllImport(NativeBindings.dllName)]
static extern void Path_addRect(IntPtr ptr, float left, float top, float right, float bottom);
[DllImport(NativeBindings.dllName)]
static extern void Path_addOval(IntPtr ptr, float left, float top, float right, float bottom);
[DllImport(NativeBindings.dllName)]
static extern void Path_addArc(IntPtr ptr, float left, float top, float right, float bottom,
float startAngle, float sweepAngle);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Path_addPolygon(IntPtr ptr, float* points, int pointsLength, bool close);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Path_addRRect(IntPtr ptr, float* value32);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Path_addPathWithMatrix(IntPtr ptr, IntPtr path, float dx, float dy,
float* matrix4);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Path_addPath(IntPtr ptr, IntPtr path, float dx, float dy);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Path_extendWithPathAndMatrix(IntPtr ptr, IntPtr path, float dx, float dy,
float* matrix4);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Path_extendWithPath(IntPtr ptr, IntPtr path, float dx, float dy);
[DllImport(NativeBindings.dllName)]
static extern void Path_close(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern void Path_reset(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
[return: MarshalAs(UnmanagedType.U1)]
static extern bool Path_contains(IntPtr ptr, float x, float y);
[DllImport(NativeBindings.dllName)]
static extern IntPtr Path_shift(IntPtr ptr, float dx, float dy);
[DllImport(NativeBindings.dllName)]
static extern unsafe IntPtr Path_transform(IntPtr ptr, float* matrix4);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Path_getBounds(IntPtr ptr, float* rect);
[DllImport(NativeBindings.dllName)]
[return: MarshalAs(UnmanagedType.U1)]
static extern bool Path_op(IntPtr ptr, IntPtr path1, IntPtr path2, int operation);
}
/*
* TODO: path metric/measure
* PathMetrics / PathMetricIterator / Tangent
* public class PathMetric {}
* class _PathMeasure {}
*/
public enum BlurStyle {
normal, // only normal for now.
solid,
outer,
inner,
}
public class MaskFilter : IEquatable<MaskFilter> {
MaskFilter(BlurStyle style, float sigma) {
_style = style;
_sigma = sigma;
}
public static MaskFilter blur(BlurStyle style, float sigma) {
return new MaskFilter(style, sigma);
}
internal readonly BlurStyle _style;
internal readonly float _sigma;
internal const int _TypeNone = 0; // null
internal const int _TypeBlur = 1; // SkBlurMaskFilter
public bool Equals(MaskFilter other) {
if (ReferenceEquals(null, other)) {
return false;
}
if (ReferenceEquals(this, other)) {
return true;
}
return _style == other._style && _sigma == other._sigma;
}
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((MaskFilter) obj);
}
public override int GetHashCode() {
unchecked {
return ((int) _style * 397) ^ _sigma.GetHashCode();
}
}
public static bool operator ==(MaskFilter left, MaskFilter right) {
return Equals(left, right);
}
public static bool operator !=(MaskFilter left, MaskFilter right) {
return !Equals(left, right);
}
public override string ToString() {
return $"MaskFilter.blur(${_style}, ${_sigma:F1})";
}
}
public class PathMetrics : IEnumerable<PathMetric> {
public PathMetrics(Path path, bool forceClosed) {
_iterator = new PathMetricIterator(new _PathMeasure(path, forceClosed));
}
readonly IEnumerator<PathMetric> _iterator;
public IEnumerator<PathMetric> GetEnumerator() {
return _iterator;
}
IEnumerator IEnumerable.GetEnumerator() {
return GetEnumerator();
}
}
public class PathMetricIterator : IEnumerator<PathMetric> {
public PathMetricIterator(_PathMeasure pathMeasure) {
D.assert(pathMeasure != null);
_pathMeasure = pathMeasure;
}
PathMetric _pathMetric;
readonly _PathMeasure _pathMeasure;
public bool MoveNext() {
if (_pathMeasure._nextContour()) {
_pathMetric = new PathMetric(_pathMeasure);
return true;
}
_pathMetric = null;
return false;
}
public void Reset() {
D.assert(false, () => "PathMetricIterator.Reset is not implemented yet !");
}
public PathMetric Current {
get {
PathMetric currentMetric = _pathMetric;
if (currentMetric == null) {
throw new Exception("PathMetricIterator is not pointing to a PathMetric. This can happen in two situations:\n" +
"- The iteration has not started yet. If so, call \"moveNext\" to start iteration." +
"- The iterator ran out of elements. If so, check that \"moveNext\" returns true prior to calling \"current\".");
}
return currentMetric;
}
}
object IEnumerator.Current {
get { return Current; }
}
public void Dispose() {
}
}
public class Tangent {
public Tangent(Offset position, Offset vector) {
D.assert(position != null);
D.assert(vector != null);
this.position = position;
this.vector = vector;
}
public static Tangent fromAngle(Offset position, float angle) {
return new Tangent(position, new Offset(Mathf.Cos(angle), Mathf.Sin(angle)));
}
public readonly Offset position;
public readonly Offset vector;
public float angle => -Mathf.Atan2(vector.dy, vector.dx);
}
public class PathMetric {
public PathMetric(_PathMeasure measure) {
D.assert(measure != null);
_measure = measure;
length = _measure.length(_measure.currentContourIndex);
isClosed = _measure.isClosed(_measure.currentContourIndex);
contourIndex = _measure.currentContourIndex;
}
public readonly float length;
public readonly bool isClosed;
public readonly int contourIndex;
readonly _PathMeasure _measure;
public Tangent getTangentForOffset(float distance) {
return _measure.getTangentForOffset(contourIndex, distance);
}
public Path extractPath(float start, float end, bool startWithMoveTo = true) {
return _measure.extractPath(contourIndex, start, end, startWithMoveTo);
}
public override string ToString() {
return $"{GetType()}: length: {length}, isClosed: {isClosed}, contourIndex: {contourIndex}";
}
}
public class _PathMeasure : NativeWrapper {
public _PathMeasure(Path path, bool forceClosed) : base(PathMeasure_constructor(path._ptr, forceClosed)) {
}
public override void DisposePtr(IntPtr ptr) {
PathMeasure_dispose(ptr);
}
public int currentContourIndex = -1;
public float length(int contourIndex) {
D.assert(contourIndex <= currentContourIndex, () => $"Iterator must be advanced before index {contourIndex} can be used.");
return PathMeasure_length(contourIndex);
}
public unsafe Tangent getTangentForOffset(int contourIndex, float distance) {
D.assert(contourIndex <= currentContourIndex, () => $"Iterator must be advanced before index {contourIndex} can be used.");
float[] posTan = new float[5];
fixed (float* posTanPtr = posTan) {
PathMeasure_getPosTan(contourIndex, distance, posTanPtr);
}
if (posTan[0] == 0.0f) {
return null;
}
else {
return new Tangent(
new Offset(posTan[1], posTan[2]),
new Offset(posTan[3], posTan[4])
);
}
}
public Path extractPath(int contourIndex, float start, float end, bool startWithMoveTo = true) {
D.assert(contourIndex <= currentContourIndex,
() => $"Iterator must be advanced before index {contourIndex} can be used.");
IntPtr pathPtr = PathMeasure_getSegment(contourIndex, start, end, startWithMoveTo);
return new Path(pathPtr);
}
public bool isClosed(int contourIndex) {
D.assert(contourIndex <= currentContourIndex, () => $"Iterator must be advanced before index {contourIndex} can be used.");
return PathMeasure_isClosed(contourIndex);
}
public bool _nextContour() {
bool next = PathMeasure_nativeNextContour();
if (next) {
currentContourIndex++;
}
return next;
}
[DllImport(NativeBindings.dllName)]
static extern IntPtr PathMeasure_constructor(IntPtr path, bool forcedClosed);
[DllImport(NativeBindings.dllName)]
static extern void PathMeasure_dispose(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern float PathMeasure_length(int contourIndex);
[DllImport(NativeBindings.dllName)]
static extern unsafe void PathMeasure_getPosTan(int contourIndex, float distance, float* posTan);
[DllImport(NativeBindings.dllName)]
static extern IntPtr PathMeasure_getSegment(int contourIndex, float start, float end,
bool startWithMoveTo);
[DllImport(NativeBindings.dllName)]
[return: MarshalAs(UnmanagedType.U1)]
static extern bool PathMeasure_isClosed(int contourIndex);
[DllImport(NativeBindings.dllName)]
[return: MarshalAs(UnmanagedType.U1)]
static extern bool PathMeasure_nativeNextContour();
}
public class ColorFilter : IEquatable<ColorFilter> {
ColorFilter(Color color, BlendMode? blendMode, float[] matrix, int type) {
_color = color;
_blendMode = blendMode;
_matrix = matrix;
_type = type;
}
public static ColorFilter mode(Color color, BlendMode blendMode) {
return new ColorFilter(color, blendMode, null, _TypeMode);
}
public static ColorFilter matrix(float[] matrix) {
return new ColorFilter(null, null, matrix, _TypeMatrix);
}
public static ColorFilter linearToSrgbGamma() {
return new ColorFilter(null, null, null, _TypeLinearToSrgbGamma);
}
public static ColorFilter srgbToLinearGamma() {
return new ColorFilter(null, null, null, _TypeSrgbToLinearGamma);
}
internal readonly Color _color;
internal readonly BlendMode? _blendMode;
internal readonly float[] _matrix;
internal readonly int _type;
internal const int _TypeMode = 1; // MakeModeFilter
internal const int _TypeMatrix = 2; // MakeMatrixFilterRowMajor255
internal const int _TypeLinearToSrgbGamma = 3; // MakeLinearToSRGBGamma
internal const int _TypeSrgbToLinearGamma = 4; // MakeSRGBToLinearGamma
internal _ColorFilter _toNativeColorFilter() {
switch (_type) {
case _TypeMode:
if (_color == null || _blendMode == null) {
return null;
}
return _ColorFilter.mode(this);
case _TypeMatrix:
if (_matrix == null) {
return null;
}
D.assert(_matrix.Length == 20, () => "Color Matrix must have 20 entries.");
return _ColorFilter.matrix(this);
case _TypeLinearToSrgbGamma:
return _ColorFilter.linearToSrgbGamma(this);
case _TypeSrgbToLinearGamma:
return _ColorFilter.srgbToLinearGamma(this);
default:
throw new Exception($"Unknown mode {_type} for ColorFilter.");
}
}
public bool Equals(ColorFilter other) {
if (ReferenceEquals(null, other)) {
return false;
}
if (ReferenceEquals(this, other)) {
return true;
}
return Equals(_color, other._color) && _blendMode == other._blendMode &&
_matrix.equalsList(other._matrix) && _type == other._type;
}
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((ColorFilter) obj);
}
public override int GetHashCode() {
unchecked {
var hashCode = (_color != null ? _color.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ _blendMode.GetHashCode();
hashCode = (hashCode * 397) ^ _matrix.hashList();
hashCode = (hashCode * 397) ^ _type;
return hashCode;
}
}
public static bool operator ==(ColorFilter left, ColorFilter right) {
return Equals(left, right);
}
public static bool operator !=(ColorFilter left, ColorFilter right) {
return !Equals(left, right);
}
public override string ToString() {
switch (_type) {
case _TypeMode:
return $"ColorFilter.mode({_color}, {_blendMode})";
case _TypeMatrix:
return $"ColorFilter.matrix({_matrix.toStringList()})";
case _TypeLinearToSrgbGamma:
return "ColorFilter.linearToSrgbGamma()";
case _TypeSrgbToLinearGamma:
return "ColorFilter.srgbToLinearGamma()";
default:
return "Unknown ColorFilter type.";
}
}
}
class _ColorFilter : NativeWrapper {
_ColorFilter(IntPtr ptr, ColorFilter creator) : base(ptr) {
this.creator = creator;
}
public override void DisposePtr(IntPtr ptr) {
ColorFilter_dispose(ptr);
}
public static _ColorFilter mode(ColorFilter creator) {
D.assert(creator != null);
D.assert(creator._type == ColorFilter._TypeMode);
var filter = new _ColorFilter(ColorFilter_constructor(), creator);
ColorFilter_initMode(filter._ptr, creator._color.value, (int) creator._blendMode);
return filter;
}
public static unsafe _ColorFilter matrix(ColorFilter creator) {
D.assert(creator != null);
D.assert(creator._type == ColorFilter._TypeMatrix);
var filter = new _ColorFilter(ColorFilter_constructor(), creator);
fixed (float* matrix = creator._matrix) {
ColorFilter_initMatrix(filter._ptr, matrix);
}
return filter;
}
public static _ColorFilter linearToSrgbGamma(ColorFilter creator) {
D.assert(creator != null);
D.assert(creator._type == ColorFilter._TypeLinearToSrgbGamma);
var filter = new _ColorFilter(ColorFilter_constructor(), creator);
ColorFilter_initLinearToSrgbGamma(filter._ptr);
return filter;
}
public static _ColorFilter srgbToLinearGamma(ColorFilter creator) {
D.assert(creator != null);
D.assert(creator._type == ColorFilter._TypeSrgbToLinearGamma);
var filter = new _ColorFilter(ColorFilter_constructor(), creator);
ColorFilter_initSrgbToLinearGamma(filter._ptr);
return filter;
}
public readonly ColorFilter creator;
[DllImport(NativeBindings.dllName)]
static extern IntPtr ColorFilter_constructor();
[DllImport(NativeBindings.dllName)]
static extern void ColorFilter_dispose(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern void ColorFilter_initMode(IntPtr ptr, uint color, int blendMode);
[DllImport(NativeBindings.dllName)]
static extern unsafe void ColorFilter_initMatrix(IntPtr ptr, float* matrix4);
[DllImport(NativeBindings.dllName)]
static extern unsafe void ColorFilter_initLinearToSrgbGamma(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern unsafe void ColorFilter_initSrgbToLinearGamma(IntPtr ptr);
}
public class ImageFilter : IEquatable<ImageFilter> {
public static ImageFilter blur(float sigmaX = 0.0f, float sigmaY = 0.0f) {
return new ImageFilter(_makeList(sigmaX, sigmaY), FilterQuality.none, _kTypeBlur);
}
public static ImageFilter matrix(float[] transform, FilterQuality filterQuality = FilterQuality.low) {
var data = (float[]) transform.Clone();
return new ImageFilter(data, filterQuality, _kTypeMatrix);
}
ImageFilter(float[] data, FilterQuality filterQuality, int type) {
_data = data;
_filterQuality = filterQuality;
_type = type;
}
static float[] _makeList(float a, float b) {
return new[] {a, b};
}
internal readonly float[] _data;
internal readonly FilterQuality _filterQuality;
internal readonly int _type;
_ImageFilter _nativeFilter;
internal const int _kTypeBlur = 0;
internal const int _kTypeMatrix = 1;
internal _ImageFilter _toNativeImageFilter() => _nativeFilter = _nativeFilter ?? _makeNativeImageFilter();
_ImageFilter _makeNativeImageFilter() {
if (_data == null) {
return null;
}
switch (_type) {
case _kTypeBlur:
return _ImageFilter.blur(this);
case _kTypeMatrix:
return _ImageFilter.matrix(this);
default:
throw new Exception($"Unknown mode {_type} for ImageFilter.");
}
}
public bool Equals(ImageFilter other) {
if (ReferenceEquals(null, other)) {
return false;
}
if (ReferenceEquals(this, other)) {
return true;
}
return _type == other._type && _data.equalsList(other._data) && _filterQuality == other._filterQuality;
}
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((ImageFilter) obj);
}
public override int GetHashCode() {
unchecked {
var hashCode = (int) _filterQuality;
hashCode = (hashCode * 397) ^ _data.hashList();
hashCode = (hashCode * 397) ^ _type;
return hashCode;
}
}
public static bool operator ==(ImageFilter left, ImageFilter right) {
return Equals(left, right);
}
public static bool operator !=(ImageFilter left, ImageFilter right) {
return !Equals(left, right);
}
public override string ToString() {
switch (_type) {
case _kTypeBlur:
return $"ImageFilter.blur({_data[0]}, {_data[1]})";
case _kTypeMatrix:
return $"ImageFilter.matrix({_data.toStringList()}, {_filterQuality})";
default:
return "Unknown ImageFilter type.";
}
}
}
internal class _ImageFilter : NativeWrapper {
_ImageFilter(IntPtr ptr, ImageFilter creator) : base(ptr) {
this.creator = creator;
}
public override void DisposePtr(IntPtr ptr) {
ImageFilter_dispose(ptr);
}
public static _ImageFilter blur(ImageFilter creator) {
D.assert(creator != null);
D.assert(creator._type == ImageFilter._kTypeBlur);
/*if (creator._data.Length != 16) {
throw new ArgumentException("\"matrix4\" must have 16 entries.");
}*/
var filter = new _ImageFilter(ImageFilter_constructor(), creator);
ImageFilter_initBlur(filter._ptr, creator._data[0], creator._data[1]);
return filter;
}
public static unsafe _ImageFilter matrix(ImageFilter creator) {
D.assert(creator != null);
D.assert(creator._type == ImageFilter._kTypeMatrix);
if (creator._data.Length != 16) {
throw new ArgumentException("\"matrix4\" must have 16 entries.");
}
var filter = new _ImageFilter(ImageFilter_constructor(), creator);
fixed (float* data = creator._data) {
ImageFilter_initMatrix(filter._ptr, data, (int) creator._filterQuality);
}
return filter;
}
public readonly ImageFilter creator;
[DllImport(NativeBindings.dllName)]
static extern IntPtr ImageFilter_constructor();
[DllImport(NativeBindings.dllName)]
static extern void ImageFilter_dispose(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern void ImageFilter_initBlur(IntPtr ptr, float sigmaX, float sigmaY);
[DllImport(NativeBindings.dllName)]
static extern unsafe void ImageFilter_initMatrix(IntPtr ptr, float* matrix4, int filterQuality);
}
public abstract class Shader : NativeWrapper {
protected Shader(IntPtr ptr) : base(ptr) {
}
}
public enum TileMode {
clamp,
repeated,
mirror,
}
public class Gradient : Shader {
Gradient(IntPtr ptr) : base(ptr) {
}
public override void DisposePtr(IntPtr ptr) {
Gradient_dispose(ptr);
}
public static unsafe Gradient linear(
Offset from,
Offset to,
List<Color> colors,
List<float> colorStops = null,
TileMode tileMode = TileMode.clamp,
float[] matrix4 = null
) {
D.assert(PaintingUtils._offsetIsValid(from));
D.assert(PaintingUtils._offsetIsValid(to));
D.assert(colors != null);
D.assert(matrix4 == null || PaintingUtils._matrix4IsValid(matrix4));
_validateColorStops(colors, colorStops);
var endPointsArray = PaintingUtils._encodeTwoPoints(from, to);
var colorsArray = PaintingUtils._encodeColorList(colors);
var colorStopsArray = colorStops?.ToArray() ?? new float[] { };
fixed (float* endPointsBuffer = endPointsArray)
fixed (uint* colorsBuffer = colorsArray)
fixed (float* colorStopsBuffer = colorStopsArray)
fixed (float* matrix4Buffer = matrix4) {
var gradient = new Gradient(Gradient_constructor());
Gradient_initLinear(
gradient._ptr, endPointsBuffer, endPointsArray.Length,
colorsBuffer, colorsArray.Length,
colorStopsBuffer, colorStopsArray.Length,
(int) tileMode,
matrix4Buffer
);
return gradient;
}
}
public static unsafe Gradient radial(
Offset center,
float radius,
List<Color> colors, List<float> colorStops = null,
TileMode tileMode = TileMode.clamp,
float[] matrix4 = null,
Offset focal = null,
float focalRadius = 0.0f) {
D.assert(PaintingUtils._offsetIsValid(center));
D.assert(colors != null);
D.assert(matrix4 == null || PaintingUtils._matrix4IsValid(matrix4));
_validateColorStops(colors, colorStops);
var colorsArray = PaintingUtils._encodeColorList(colors);
var colorStopsArray = colorStops?.ToArray() ?? new float[] { };
fixed (uint* colorsBuffer = colorsArray)
fixed (float* colorStopsBuffer = colorStopsArray)
fixed (float* matrix4Buffer = matrix4) {
var gradient = new Gradient(Gradient_constructor());
if (focal == null || (focal == center && focalRadius == 0.0f)) {
Gradient_initRadial(gradient._ptr,
center.dx, center.dy, radius,
colorsBuffer, colorsArray.Length,
colorStopsBuffer, colorStopsArray.Length,
(int) tileMode, matrix4Buffer);
}
else {
D.assert(center != Offset.zero || focal != Offset.zero);
Gradient_initConical(gradient._ptr,
focal.dx, focal.dy, focalRadius,
center.dx, center.dy, radius,
colorsBuffer, colorsArray.Length,
colorStopsBuffer, colorStopsArray.Length,
(int) tileMode, matrix4Buffer);
}
return gradient;
}
}
public static unsafe Gradient sweep(
Offset center,
List<Color> colors,
List<float> colorStops = null,
TileMode tileMode = TileMode.clamp,
float startAngle = 0.0f,
float endAngle = Mathf.PI * 2,
float[] matrix4 = null
) {
D.assert(PaintingUtils._offsetIsValid(center));
D.assert(colors != null);
D.assert(startAngle < endAngle);
D.assert(matrix4 == null || PaintingUtils._matrix4IsValid(matrix4));
_validateColorStops(colors, colorStops);
var colorsArray = PaintingUtils._encodeColorList(colors);
var colorStopsArray = colorStops?.ToArray() ?? new float[] { };
fixed (uint* colorsBuffer = colorsArray)
fixed (float* colorStopsBuffer = colorStopsArray)
fixed (float* matrix4Buffer = matrix4) {
var gradient = new Gradient(Gradient_constructor());
Gradient_initSweep(gradient._ptr,
center.dx, center.dy,
colorsBuffer, colorsArray.Length,
colorStopsBuffer, colorStopsArray.Length,
(int) tileMode, startAngle, endAngle, matrix4Buffer);
return gradient;
}
}
static void _validateColorStops(List<Color> colors, List<float> colorStops) {
if (colorStops == null) {
if (colors.Count != 2) {
throw new ArgumentException("\"colors\" must have length 2 if \"colorStops\" is omitted.");
}
}
else {
if (colors.Count != colorStops.Count) {
throw new ArgumentException("\"colors\" and \"colorStops\" arguments must have equal length.");
}
}
}
[DllImport(NativeBindings.dllName)]
static extern IntPtr Gradient_constructor();
[DllImport(NativeBindings.dllName)]
static extern void Gradient_dispose(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Gradient_initLinear(IntPtr ptr,
float* endPoints, int endPointsLength,
uint* colors, int colorsLength,
float* colorStops, int colorStopsLength,
int tileMode, float* matrix4);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Gradient_initRadial(IntPtr ptr,
float centerX, float centerY, float radius,
uint* colors, int colorsLength,
float* colorStops, int colorStopsLength,
int tileMode, float* matrix4);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Gradient_initConical(IntPtr ptr,
float startX, float startY, float startRadius,
float endX, float endY, float endRadius,
uint* colors, int colorsLength,
float* colorStops, int colorStopsLength,
int tileMode, float* matrix4);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Gradient_initSweep(IntPtr ptr,
float centerX, float centerY,
uint* colors, int colorsLength,
float* colorStops, int colorStopsLength,
int tileMode, float startAngle, float endAngle, float* matrix4);
}
public class ImageShader : Shader {
unsafe ImageShader(Image image, TileMode tmx, TileMode tmy, float[] matrix4)
: base(ImageShader_constructor()) {
D.assert(image != null);
D.assert(matrix4 != null);
if (matrix4.Length != 16) {
throw new ArgumentException("\"matrix4\" must have 16 entries.");
}
fixed (float* matrix4Buffer = matrix4) {
ImageShader_initWithImage(_ptr, image._ptr, (int) tmx, (int) tmy, matrix4Buffer);
}
}
public override void DisposePtr(IntPtr ptr) {
ImageShader_dispose(ptr);
}
[DllImport(NativeBindings.dllName)]
static extern IntPtr ImageShader_constructor();
[DllImport(NativeBindings.dllName)]
static extern void ImageShader_dispose(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern unsafe void ImageShader_initWithImage(IntPtr ptr,
IntPtr image, int tmx, int tmy, float* matrix4);
}
public enum VertexMode {
triangles,
triangleStrip,
triangleFan,
}
public class Vertices : NativeWrapper {
Vertices() : base(Vertices_constructor()) {
}
public override void DisposePtr(IntPtr ptr) {
Vertices_dispose(ptr);
}
public unsafe Vertices(
VertexMode mode,
List<Offset> positions,
List<Offset> textureCoordinates = null,
List<Color> colors = null,
List<int> indices = null
) : base(Vertices_constructor()) {
D.assert(positions != null);
if (textureCoordinates != null && textureCoordinates.Count != positions.Count)
throw new ArgumentException("\"positions\" and \"textureCoordinates\" lengths must match.");
if (colors != null && colors.Count != positions.Count)
throw new ArgumentException("\"positions\" and \"colors\" lengths must match.");
if (indices != null && indices.Any((i) => i < 0 || i >= positions.Count))
throw new ArgumentException("\"indices\" values must be valid indices in the positions list.");
float[] encodedPositions = PaintingUtils._encodePointList(positions);
float[] encodedTextureCoordinates = (textureCoordinates != null)
? PaintingUtils._encodePointList(textureCoordinates)
: null;
uint[] encodedColors = colors != null
? PaintingUtils._encodeColorList(colors)
: null;
ushort[] encodedIndices = indices != null
? LinqUtils<ushort, int>.SelectArray(indices, (i => (ushort) i))
: null;
fixed (float* encodedPositionsPtr = encodedPositions, encodedTextureCoordinatesPtr =
encodedTextureCoordinates)
fixed (uint* encodedColorsPtr = encodedColors)
fixed (ushort* encodedIndicesPtr = encodedIndices)
if (!Vertices_init(_ptr, (int) mode,
encodedPositionsPtr, encodedPositions.Length,
encodedTextureCoordinatesPtr, encodedTextureCoordinates.Length,
encodedColorsPtr, encodedColors.Length,
encodedIndicesPtr, encodedIndices.Length))
throw new ArgumentException("Invalid configuration for vertices.");
}
public static unsafe Vertices raw(
VertexMode mode,
float[] positions,
float[] textureCoordinates = null,
uint[] colors = null,
ushort[] indices = null
) {
D.assert(positions != null);
if (textureCoordinates != null && textureCoordinates.Length != positions.Length)
throw new ArgumentException("\"positions\" and \"textureCoordinates\" lengths must match.");
if (colors != null && colors.Length != positions.Length)
throw new ArgumentException("\"positions\" and \"colors\" lengths must match.");
if (indices != null && indices.Any((i) => i < 0 || i >= positions.Length))
throw new ArgumentException("\"indices\" values must be valid indices in the positions list.");
var vertices = new Vertices();
fixed (float* encodedPositionsPtr = positions, encodedTextureCoordinatesPtr = textureCoordinates)
fixed (uint* encodedColorsPtr = colors)
fixed (ushort* encodedIndicesPtr = indices)
if (!Vertices_init(vertices._ptr, (int) mode,
encodedPositionsPtr, positions.Length,
encodedTextureCoordinatesPtr, textureCoordinates.Length,
encodedColorsPtr, colors.Length,
encodedIndicesPtr, indices.Length))
throw new ArgumentException("Invalid configuration for vertices.");
return vertices;
}
[DllImport(NativeBindings.dllName)]
public static extern IntPtr Vertices_constructor();
[DllImport(NativeBindings.dllName)]
public static extern void Vertices_dispose(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
[return: MarshalAs(UnmanagedType.U1)]
public static extern unsafe bool Vertices_init(IntPtr ptr,
int mode,
float* positions,
int positionsLength,
float* textureCoordinates,
int textureCoordinatesLength,
uint* colors,
int colorsLength,
ushort* indices,
int indicesLength);
}
public enum PointMode {
points,
lines,
polygon,
}
public enum ClipOp {
difference,
intersect,
}
public class Canvas : NativeWrapper {
public Canvas(PictureRecorder recorder, Rect cullRect = null) {
D.assert(recorder != null);
if (recorder.isRecording) {
throw new ArgumentException("\"recorder\" must not already be associated with another Canvas.");
}
cullRect = cullRect ?? Rect.largest;
_setPtr(Canvas_constructor(recorder._ptr, cullRect.left, cullRect.top,
cullRect.right,
cullRect.bottom));
}
public override void DisposePtr(IntPtr ptr) {
Canvas_dispose(ptr);
}
public virtual void save() {
Canvas_save(_ptr);
}
public virtual unsafe void saveLayer(Rect bounds, Paint paint) {
D.assert(paint != null);
if (bounds == null) {
fixed (IntPtr* objectsPtr = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
Canvas_saveLayerWithoutBounds(_ptr, objectsPtr, dataPtr);
}
else {
D.assert(PaintingUtils._rectIsValid(bounds));
fixed (IntPtr* objectsPtr = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
Canvas_saveLayer(_ptr, bounds.left, bounds.top, bounds.right, bounds.bottom,
objectsPtr, dataPtr);
}
}
public virtual void restore() {
Canvas_restore(_ptr);
}
public virtual int getSaveCount() {
return Canvas_getSaveCount(_ptr);
}
public virtual void translate(float dx, float dy) {
Canvas_translate(_ptr, dx, dy);
}
public virtual void scale(float sx, float? sy = null) {
Canvas_scale(_ptr, sx, sy ?? sx);
}
public virtual void rotate(float radians) {
Canvas_rotate(_ptr, radians);
}
public virtual void skew(float sx, float sy) {
Canvas_skew(_ptr, sx, sy);
}
public virtual unsafe void transform(float[] matrix4) {
D.assert(matrix4 != null);
if (matrix4.Length != 16)
throw new ArgumentException("\"matrix4\" must have 16 entries.");
fixed (float* matrx4Ptr = matrix4)
Canvas_transform(_ptr, matrx4Ptr);
}
public virtual void clipRect(Rect rect, ClipOp clipOp = ClipOp.intersect, bool doAntiAlias = true) {
D.assert(PaintingUtils._rectIsValid(rect));
Canvas_clipRect(_ptr, rect.left, rect.top, rect.right, rect.bottom, (int) clipOp, doAntiAlias);
}
public virtual unsafe void clipRRect(RRect rrect, bool doAntiAlias = true) {
D.assert(PaintingUtils._rrectIsValid(rrect));
fixed (float* rrectPtr = rrect._value32)
Canvas_clipRRect(_ptr, rrectPtr, doAntiAlias);
}
public virtual void clipPath(Path path, bool doAntiAlias = true) {
D.assert(path != null);
Canvas_clipPath(_ptr, path._ptr, doAntiAlias);
}
public virtual void drawColor(Color color, BlendMode blendMode) {
D.assert(color != null);
Canvas_drawColor(_ptr, color.value, (int) blendMode);
}
public virtual unsafe void drawLine(Offset p1, Offset p2, Paint paint) {
D.assert(PaintingUtils._offsetIsValid(p1));
D.assert(PaintingUtils._offsetIsValid(p2));
D.assert(paint != null);
fixed (IntPtr* objectsPtr = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
Canvas_drawLine(_ptr, p1.dx, p1.dy, p2.dx, p2.dy, objectsPtr, dataPtr);
}
public virtual unsafe void drawPaint(Paint paint) {
D.assert(paint != null);
fixed (IntPtr* objectsPtr = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
Canvas_drawPaint(_ptr, objectsPtr, dataPtr);
}
public virtual unsafe void drawRect(Rect rect, Paint paint) {
D.assert(PaintingUtils._rectIsValid(rect));
D.assert(paint != null);
fixed (IntPtr* objectsPtr = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
Canvas_drawRect(_ptr, rect.left, rect.top, rect.right, rect.bottom,
objectsPtr, dataPtr);
}
public virtual unsafe void drawRRect(RRect rrect, Paint paint) {
D.assert(PaintingUtils._rrectIsValid(rrect));
D.assert(paint != null);
fixed (float* rrectPtr = rrect._value32)
fixed (IntPtr* objectsPtr = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
Canvas_drawRRect(_ptr, rrectPtr, objectsPtr,
dataPtr);
}
public virtual unsafe void drawDRRect(RRect outer, RRect inner, Paint paint) {
D.assert(PaintingUtils._rrectIsValid(outer));
D.assert(PaintingUtils._rrectIsValid(inner));
D.assert(paint != null);
fixed (float* outerPtr = outer._value32)
fixed (float* innerPtr = inner._value32)
fixed (IntPtr* objectsPtr = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
Canvas_drawDRRect(_ptr, outerPtr, innerPtr, objectsPtr,
dataPtr);
}
public virtual unsafe void drawOval(Rect rect, Paint paint) {
D.assert(PaintingUtils._rectIsValid(rect));
D.assert(paint != null);
fixed (IntPtr* objectsPtr = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
Canvas_drawOval(_ptr, rect.left, rect.top, rect.right, rect.bottom,
objectsPtr,
dataPtr);
}
public virtual unsafe void drawCircle(Offset c, float radius, Paint paint) {
D.assert(PaintingUtils._offsetIsValid(c));
D.assert(paint != null);
fixed (IntPtr* objectsPtr = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
Canvas_drawCircle(_ptr, c.dx, c.dy, radius, objectsPtr,
dataPtr);
}
public virtual unsafe void drawArc(Rect rect, float startAngle, float sweepAngle, bool useCenter, Paint paint) {
D.assert(PaintingUtils._rectIsValid(rect));
D.assert(paint != null);
fixed (IntPtr* objectsPtr = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
Canvas_drawArc(_ptr, rect.left, rect.top, rect.right, rect.bottom, startAngle,
sweepAngle, useCenter, objectsPtr,
dataPtr);
}
public virtual unsafe void drawPath(Path path, Paint paint) {
D.assert(path != null);
D.assert(paint != null);
fixed (IntPtr* objectsPtr = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
Canvas_drawPath(_ptr, path._ptr, objectsPtr,
dataPtr);
}
public virtual unsafe void drawImage(Image image, Offset p, Paint paint) {
D.assert(image != null);
D.assert(PaintingUtils._offsetIsValid(p));
D.assert(paint != null);
fixed (IntPtr* objectsPtr = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
Canvas_drawImage(_ptr, image._ptr, p.dx, p.dy, objectsPtr,
dataPtr);
}
public virtual unsafe void drawImageRect(Image image, Rect src, Rect dst, Paint paint) {
D.assert(image != null);
D.assert(PaintingUtils._rectIsValid(src));
D.assert(PaintingUtils._rectIsValid(dst));
D.assert(paint != null);
fixed (IntPtr* objectsPtr = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
Canvas_drawImageRect(_ptr, image._ptr,
src.left,
src.top,
src.right,
src.bottom,
dst.left,
dst.top,
dst.right,
dst.bottom,
objectsPtr,
dataPtr);
}
public virtual unsafe void drawImageNine(Image image, Rect center, Rect dst, Paint paint) {
D.assert(image != null);
D.assert(PaintingUtils._rectIsValid(center));
D.assert(PaintingUtils._rectIsValid(dst));
D.assert(paint != null);
fixed (IntPtr* objectsPtr = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
Canvas_drawImageNine(_ptr, image._ptr,
center.left,
center.top,
center.right,
center.bottom,
dst.left,
dst.top,
dst.right,
dst.bottom,
objectsPtr,
dataPtr);
}
public virtual void drawPicture(Picture picture) {
D.assert(picture != null);
Canvas_drawPicture(_ptr, picture._ptr);
}
public virtual void drawParagraph(Paragraph paragraph, Offset offset) {
D.assert(paragraph != null);
D.assert(PaintingUtils._offsetIsValid(offset));
paragraph._paint(this, offset.dx, offset.dy);
}
public virtual void drawPoints(PointMode pointMode, List<Offset> points, Paint paint) {
unsafe
{
D.assert(pointMode != null);
D.assert(points != null);
D.assert(paint != null);
float[] list = PaintingUtils._encodePointList(points);
fixed (IntPtr* objectPtrs = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
fixed (float* listPtr = list) {
Canvas_drawPoints(_ptr, objectPtrs, dataPtr, (int) pointMode, listPtr, list.Length);
}
}
}
public virtual unsafe void drawRawPoints(PointMode pointMode, float[] points, Paint paint) {
D.assert(points != null);
D.assert(paint != null);
if (points.Length % 2 != 0)
throw new ArgumentException("\"points\" must have an even number of values.");
fixed (IntPtr* objectPtrs = paint._objectPtrs)
fixed (byte* dataPtr = paint._data)
fixed (float* pointsPtr = points) {
Canvas_drawPoints(_ptr, objectPtrs, dataPtr, (int) pointMode, pointsPtr, points.Length);
}
}
public virtual unsafe void drawVertices(Vertices vertices, BlendMode blendMode, Paint paint) {
D.assert(vertices != null);
D.assert(paint != null);
fixed (IntPtr* objectPtrs = paint._objectPtrs)
fixed (byte* dataPtr = paint._data) {
Canvas_drawVertices(_ptr, vertices._ptr, (int) blendMode,
objectPtrs, dataPtr);
}
}
public virtual unsafe void drawAtlas(Image atlas,
List<RSTransform> transforms,
List<Rect> rects,
List<Color> colors,
BlendMode blendMode,
Rect cullRect,
Paint paint) {
D.assert(atlas != null);
D.assert(transforms != null);
D.assert(rects != null);
D.assert(colors != null);
D.assert(paint != null);
int rectCount = rects.Count;
if (transforms.Count != rectCount)
throw new ArgumentException("\"transforms\" and \"rects\" lengths must match.");
if (colors.isNotEmpty() && colors.Count != rectCount)
throw new ArgumentException(
"If non-null, \"colors\" length must match that of \"transforms\" and \"rects\".");
var rstTransformBuffer = new float[rectCount * 4];
var rectBuffer = new float [rectCount * 4];
for (int i = 0; i < rectCount; ++i) {
int index0 = i * 4;
int index1 = index0 + 1;
int index2 = index0 + 2;
int index3 = index0 + 3;
RSTransform rstTransform = transforms[i];
Rect rect = rects[i];
D.assert(PaintingUtils._rectIsValid(rect));
rstTransformBuffer[index0] = rstTransform.scos;
rstTransformBuffer[index1] = rstTransform.ssin;
rstTransformBuffer[index2] = rstTransform.tx;
rstTransformBuffer[index3] = rstTransform.ty;
rectBuffer[index0] = rect.left;
rectBuffer[index1] = rect.top;
rectBuffer[index2] = rect.right;
rectBuffer[index3] = rect.bottom;
}
uint[] colorBuffer = colors.isEmpty() ? null : PaintingUtils._encodeColorList(colors);
fixed (IntPtr* objectPtrs = paint._objectPtrs)
fixed (byte* paintDataPtr = paint._data)
fixed (float* rstTransformsPtr = rstTransformBuffer,
rectsPtr = rectBuffer,
cullRectPtr = cullRect?._value32)
fixed (uint* colorsPtr = colorBuffer) {
Canvas_drawAtlas(_ptr,
objectPtrs, paintDataPtr, atlas._ptr,
rstTransformsPtr, transforms.Count,
rectsPtr, rects.Count,
colorsPtr, colors.Count,
(int) blendMode, cullRectPtr
);
}
}
public virtual unsafe void drawRawAtlas(Image atlas,
float[] rstTransforms,
float[] rects,
uint[] colors,
BlendMode blendMode,
Rect cullRect,
Paint paint) {
D.assert(atlas != null);
D.assert(rstTransforms != null);
D.assert(rects != null);
D.assert(colors != null);
D.assert(paint != null);
int rectCount = rects.Length;
if (rstTransforms.Length != rectCount)
throw new ArgumentException("\"rstTransforms\" and \"rects\" lengths must match.");
if (rectCount % 4 != 0)
throw new ArgumentException("\"rstTransforms\" and \"rects\" lengths must be a multiple of four.");
if (colors.Length * 4 != rectCount)
throw new ArgumentException(
"If non-null, \"colors\" length must be one fourth the length of \"rstTransforms\" and \"rects\".");
fixed (IntPtr* objectPtrs = paint._objectPtrs)
fixed (byte* paintDataPtr = paint._data)
fixed (float* rstTransformsPtr = rstTransforms,
rectsPtr = rects,
cullRectPtr = cullRect?._value32)
fixed (uint* colorsPtr = colors) {
Canvas_drawAtlas(_ptr,
objectPtrs, paintDataPtr, atlas._ptr,
rstTransformsPtr, rstTransforms.Length,
rectsPtr, rects.Length,
colorsPtr, colors.Length,
(int) blendMode, cullRectPtr
);
}
}
public virtual void drawShadow(Path path, Color color, float elevation, bool transparentOccluder) {
D.assert(path != null);
D.assert(color != null);
Canvas_drawShadow(_ptr, path._ptr, color.value, elevation, transparentOccluder);
}
[DllImport(NativeBindings.dllName)]
static extern IntPtr Canvas_constructor(IntPtr recorder,
float left,
float top,
float right,
float bottom);
[DllImport(NativeBindings.dllName)]
static extern void Canvas_dispose(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern void Canvas_save(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern unsafe void
Canvas_saveLayerWithoutBounds(IntPtr ptr, IntPtr* paintObject, byte* paintData);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_saveLayer(IntPtr ptr,
float left, float top, float right, float bottom, IntPtr* paintObject, byte* paintData);
[DllImport(NativeBindings.dllName)]
static extern void Canvas_restore(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern int Canvas_getSaveCount(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern void Canvas_translate(IntPtr ptr,
float x, float y);
[DllImport(NativeBindings.dllName)]
static extern void Canvas_scale(IntPtr ptr,
float sx, float sy);
[DllImport(NativeBindings.dllName)]
static extern void Canvas_rotate(IntPtr ptr,
float radians);
[DllImport(NativeBindings.dllName)]
static extern void Canvas_skew(IntPtr ptr,
float sx, float sy);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_transform(IntPtr ptr,
float* matrix4);
[DllImport(NativeBindings.dllName)]
static extern void Canvas_clipRect(IntPtr ptr,
float left, float top, float right, float bottom, int clipOp, bool doAntiAlias);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_clipRRect(IntPtr ptr,
float* rrect, bool doAntiAlias);
[DllImport(NativeBindings.dllName)]
static extern void Canvas_clipPath(IntPtr ptr,
IntPtr path, bool doAntiAlias);
[DllImport(NativeBindings.dllName)]
static extern void Canvas_drawColor(IntPtr ptr,
uint color, int blendMode);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_drawLine(IntPtr ptr,
float x1, float y1, float x2, float y2, IntPtr* paintObject, byte* paintData);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_drawPaint(IntPtr ptr,
IntPtr* paintObject, byte* paintData);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_drawRect(IntPtr ptr,
float left, float top, float right, float bottom, IntPtr* paintObject, byte* paintData);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_drawRRect(IntPtr ptr,
float* rrect, IntPtr* paintObject, byte* paintData);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_drawDRRect(IntPtr ptr,
float* outer, float* inner, IntPtr* paintObject, byte* paintData);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_drawOval(IntPtr ptr,
float left, float top, float right, float bottom, IntPtr* paintObject, byte* paintData);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_drawCircle(IntPtr ptr,
float x, float y, float radius, IntPtr* paintObject, byte* paintData);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_drawArc(IntPtr ptr,
float left, float top, float right, float bottom,
float startAngle, float sweepAngle, bool useCenter, IntPtr* paintObject, byte* paintData);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_drawPath(IntPtr ptr,
IntPtr path, IntPtr* paintObject, byte* paintData);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_drawImage(IntPtr ptr,
IntPtr image, float x, float y, IntPtr* paintObject, byte* paintData);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_drawImageRect(IntPtr ptr,
IntPtr image, float srcLeft, float srcTop, float srcRight, float srcBottom,
float dstLeft, float dstTop, float dstRight, float dstBottom, IntPtr* paintObject, byte* paintData);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_drawImageNine(IntPtr ptr,
IntPtr image, float centerLeft, float centerTop, float centerRight, float centerBottom,
float dstLeft, float dstTop, float dstRight, float dstBottom, IntPtr* paintObject, byte* paintData);
[DllImport(NativeBindings.dllName)]
static extern void Canvas_drawPicture(IntPtr ptr, IntPtr picture);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_drawPoints(IntPtr ptr,
IntPtr* paintObject, byte* paintData, int pointMode, float* points, int pointsLength);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_drawVertices(IntPtr ptr, IntPtr vertices, int blendMode,
IntPtr* paintObject, byte* paintData);
[DllImport(NativeBindings.dllName)]
static extern unsafe void Canvas_drawAtlas(IntPtr ptr, IntPtr* paintObjects, byte* paintData,
IntPtr atlas, float* rstTransforms, int rstTransformsLength,
float* rects, int rectsLength, uint* colors, int colorsLength, int blendMode, float* cullRect);
[DllImport(NativeBindings.dllName)]
static extern void Canvas_drawShadow(IntPtr ptr, IntPtr path, uint color, float elevation,
bool transparentOccluder);
}
public class Picture : NativeWrapperDisposable {
internal Picture(IntPtr ptr) : base(ptr) {
}
public override void DisposePtr(IntPtr ptr) {
Picture_dispose(ptr);
}
public Future<Image> toImage(int width, int height) {
if (width <= 0 || height <= 0) {
throw new ArgumentException("Invalid image dimensions.");
}
return ui_._futurize(
(_Callback<Image> callback) => {
GCHandle callbackHandle = GCHandle.Alloc(callback);
IntPtr error =
Picture_toImage(_ptr, width, height, _toImageCallback,
(IntPtr) callbackHandle);
if (error != IntPtr.Zero) {
callbackHandle.Free();
return Marshal.PtrToStringAnsi(error);
}
return null;
});
}
[MonoPInvokeCallback(typeof(Picture_toImageCallback))]
static void _toImageCallback(IntPtr callbackHandle, IntPtr result) {
GCHandle handle = (GCHandle) callbackHandle;
var callback = (_Callback<Image>) handle.Target;
handle.Free();
if (!Isolate.checkExists()) {
return;
}
try {
callback(result == IntPtr.Zero ? null : new Image(result));
}
catch (Exception ex) {
Debug.LogException(ex);
}
}
public ulong approximateBytesUsed => Picture_GetAllocationSize(_ptr);
[DllImport(NativeBindings.dllName)]
static extern void Picture_dispose(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
[return: MarshalAs(UnmanagedType.SysUInt)]
static extern ulong Picture_GetAllocationSize(IntPtr ptr);
delegate void Picture_toImageCallback(IntPtr callbackHandle, IntPtr result);
[DllImport(NativeBindings.dllName)]
static extern IntPtr Picture_toImage(IntPtr ptr, int width, int height, Picture_toImageCallback callback,
IntPtr callbackHandle);
}
public class PictureRecorder : NativeWrapper {
public PictureRecorder() : base(PictureRecorder_constructor()) {
}
public override void DisposePtr(IntPtr ptr) {
PictureRecorder_dispose(ptr);
}
public bool isRecording => PictureRecorder_isRecording(_ptr);
public Picture endRecording() {
return new Picture(PictureRecorder_endRecording(_ptr));
}
[DllImport(NativeBindings.dllName)]
static extern IntPtr PictureRecorder_constructor();
[DllImport(NativeBindings.dllName)]
static extern void PictureRecorder_dispose(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
[return: MarshalAs(UnmanagedType.U1)]
static extern bool PictureRecorder_isRecording(IntPtr ptr);
[DllImport(NativeBindings.dllName)]
static extern IntPtr PictureRecorder_endRecording(IntPtr ptr);
}
public class Shadow : IEquatable<Shadow> {
public Shadow(
Color color,
Offset offset,
float blurRadius = 0) {
D.assert(color != null);
D.assert(offset != null);
D.assert(blurRadius >= 0.0);
this.color = color ?? new Color(_kColorDefault);
this.offset = offset ?? Offset.zero;
this.blurRadius = blurRadius;
}
static readonly uint _kColorDefault = 0xFF000000;
// Constants for shadow encoding.
static readonly int _kBytesPerShadow = 16;
static readonly int _kColorOffset = 0 << 2;
static readonly int _kXOffset = 1 << 2;
static readonly int _kYOffset = 2 << 2;
static readonly int _kBlurOffset = 3 << 2;
public readonly Color color;
public readonly Offset offset;
public readonly float blurRadius;
public static float convertRadiusToSigma(float radius) {
return radius * 0.57735f + 0.5f;
}
public float blurSigma {
get { return convertRadiusToSigma(blurRadius); }
}
public Paint toPaint() {
return new Paint() {
color = color,
maskFilter = MaskFilter.blur(BlurStyle.normal, blurSigma)
};
}
public Shadow scale(float factor) {
return new Shadow(
color: color,
offset: offset * factor,
blurRadius: blurRadius * factor
);
}
public static Shadow lerp(Shadow a, Shadow b, float t) {
D.assert(t != null);
if (a == null && b == null)
return null;
if (a == null)
return b.scale(t);
if (b == null)
return a.scale(1.0f - t);
return new Shadow(
color: Color.lerp(a.color, b.color, t),
offset: Offset.lerp(a.offset, b.offset, t),
blurRadius: MathUtils.lerpNullableFloat(a.blurRadius, b.blurRadius, t)
);
}
public static List<Shadow> lerpList(List<Shadow> a, List<Shadow> b, float t) {
D.assert(t != null);
if (a == null && b == null)
return null;
a = a ?? new List<Shadow>();
b = b ?? new List<Shadow>();
List<Shadow> result = new List<Shadow>();
int commonLength = Math.Min(a.Count, b.Count);
for (int i = 0; i < commonLength; i += 1)
result.Add(lerp(a[i], b[i], t));
for (int i = commonLength; i < a.Count; i += 1)
result.Add(a[i].scale(1.0f - t));
for (int i = commonLength; i < b.Count; i += 1)
result.Add(b[i].scale(t));
return result;
}
internal static byte[] _encodeShadows(List<Shadow> shadows) {
if (shadows == null)
return new byte[0];
int byteCount = shadows.Count * _kBytesPerShadow;
byte[] shadowsData = new byte[byteCount];
int shadowOffset = 0;
for (int shadowIndex = 0; shadowIndex < shadows.Count; ++shadowIndex) {
Shadow shadow = shadows[shadowIndex];
if (shadow == null)
continue;
shadowOffset = shadowIndex * _kBytesPerShadow;
shadowsData.setInt32(_kColorOffset + shadowOffset,
(int) (shadow.color.value ^ _kColorDefault));
shadowsData.setFloat32(_kXOffset + shadowOffset,
shadow.offset.dx);
shadowsData.setFloat32(_kYOffset + shadowOffset,
shadow.offset.dy);
shadowsData.setFloat32(_kBlurOffset + shadowOffset,
shadow.blurRadius);
}
return shadowsData;
}
public override string ToString() => $"TextShadow({color}, {offset}, {blurRadius})";
public bool Equals(Shadow other)
{
if (ReferenceEquals(null, other)) {
return false;
}
if (ReferenceEquals(this, other)) {
return true;
}
return Equals(color, other.color) && Equals(offset, other.offset) && blurRadius.Equals(other.blurRadius);
}
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((Shadow) obj);
}
public override int GetHashCode()
{
unchecked
{
var hashCode = (color != null ? color.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ (offset != null ? offset.GetHashCode() : 0);
hashCode = (hashCode * 397) ^ blurRadius.GetHashCode();
return hashCode;
}
}
}
public class Skottie : NativeWrapper {
public Skottie(string path) {
_setPtr(Skottie_Construct(path));
}
public override void DisposePtr(IntPtr ptr) {
Skottie_Dispose(ptr);
}
public void paint(Canvas canvas, Offset offset, float width, float height, float frame) {
Skottie_Paint(_ptr, canvas._ptr, offset.dx, offset.dy, width, height, frame);
}
public float duration() {
return Skottie_Duration(_ptr);
}
[DllImport(NativeBindings.dllName)]
static extern IntPtr Skottie_Construct(string path);
[DllImport(NativeBindings.dllName)]
static extern void Skottie_Dispose(IntPtr skottie);
[DllImport(NativeBindings.dllName)]
static extern void Skottie_Paint(IntPtr skottie, IntPtr canvas, float x, float y, float width, float height,
float frame);
[DllImport(NativeBindings.dllName)]
static extern float Skottie_Duration(IntPtr skottie);
}
delegate void _Callback<T>(T result);
delegate string _Callbacker<T>(_Callback<T> callback);
public static partial class ui_ {
internal static Future<T> _futurize<T>(_Callbacker<T> callbacker) {
Completer completer = Completer.sync();
string error = callbacker(t => {
if (t == null) {
completer.completeError(new Exception("operation failed"));
}
else {
completer.complete(FutureOr.value(t));
}
});
if (error != null)
throw new Exception(error);
return completer.future.to<T>();
}
}
}