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fix image.cs

/siyaoH-1.17-PlatformMessage
guanghuispark 4 年前
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7935c74d
共有 2 个文件被更改，包括 261 次插入 和 73 次删除
  1. 2
      com.unity.uiwidgets/Runtime/widgets/disposable_build_context.cs
  2. 332
      com.unity.uiwidgets/Runtime/widgets/image.cs

2
com.unity.uiwidgets/Runtime/widgets/disposable_build_context.cs
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return true;
}
void dispose() {
public void dispose() {
_state = null;
}
}

332
com.unity.uiwidgets/Runtime/widgets/image.cs
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using System;
using System.Collections.Generic;
using System.Diagnostics;
using Unity.UIWidgets.async2;
using Unity.UIWidgets.foundation;
using Unity.UIWidgets.painting;

using Color = Unity.UIWidgets.ui.Color;
using Object = System.Object;
using Rect = Unity.UIWidgets.ui.Rect;
namespace Unity.UIWidgets.widgets {

}
}
stream.addListener(listener, onError: errorListener);
stream.addListener(listener: listener, onError: errorListener);
public delegate Widget ImageFrameBuilder (
BuildContext context,
Widget child,
int frame,
bool wasSynchronouslyLoaded
);
// [!!!] class ImageChunkEvent is missing
public delegate Widget ImageLoadingBuilder(
BuildContext context,
Widget child//,
//ImageChunkEvent loadingProgress
);
public delegate Widget ImageErrorWidgetBuilder(
BuildContext context,
Object error,
StackTrace stackTrace
);
ImageFrameBuilder frameBuilder = null,
ImageLoadingBuilder loadingBuilder = null,
ImageErrorWidgetBuilder errorBuilder = null,
float? width = null,
float? height = null,
Color color = null,

Rect centerSlice = null,
bool gaplessPlayback = false,
FilterQuality filterQuality = FilterQuality.low
) : base(key) {
) : base(key: key) {
this.frameBuilder = frameBuilder;
this.loadingBuilder = loadingBuilder;
this.errorBuilder = errorBuilder;
this.width = width;
this.height = height;
this.color = color;

string src,
Key key = null,
float scale = 1.0f,
ImageFrameBuilder frameBuilder = null,
ImageLoadingBuilder loadingBuilder = null,
ImageErrorWidgetBuilder errorBuilder = null,
float? width = null,
float? height = null,
Color color = null,

Rect centerSlice = null,
bool gaplessPlayback = false,
FilterQuality filterQuality = FilterQuality.low,
IDictionary<string, string> headers = null
IDictionary<string, string> headers = null,
int cacheWidth = default,
int cacheHeight = default
var networkImage = new NetworkImage(src, scale, headers);
var networkImage = new NetworkImage(src, scale, headers);//image = ResizeImage.resizeIfNeeded(cacheWidth, cacheHeight, NetworkImage(src, scale: scale, headers: headers));
key,
networkImage,
width,
height,
color,
colorBlendMode,
fit,
alignment,
repeat,
centerSlice,
gaplessPlayback,
filterQuality
key: key,
image: networkImage,
frameBuilder: frameBuilder,
loadingBuilder: loadingBuilder,
errorBuilder: errorBuilder,
width: width,
height: height,
color: color,
colorBlendMode: colorBlendMode,
fit: fit,
alignment: alignment,
repeat: repeat,
centerSlice: centerSlice,
gaplessPlayback: gaplessPlayback,
filterQuality: filterQuality
);
}

float scale = 1.0f,
ImageFrameBuilder frameBuilder = null,
ImageErrorWidgetBuilder errorBuilder = null,
float? width = null,
float? height = null,
Color color = null,

ImageRepeat repeat = ImageRepeat.noRepeat,
Rect centerSlice = null,
bool gaplessPlayback = false,
FilterQuality filterQuality = FilterQuality.low
FilterQuality filterQuality = FilterQuality.low,
int cacheWidth = default,
int cacheHeight = default
var fileImage = new FileImage(file, scale);
var fileImage = new FileImage(file, scale);//ResizeImage.resizeIfNeeded(cacheWidth, cacheHeight, FileImage(file, scale: scale));
key,
fileImage,
width,
height,
color,
colorBlendMode,
fit,
alignment,
repeat,
centerSlice,
gaplessPlayback,
filterQuality
key: key,
image: fileImage,
frameBuilder: frameBuilder,
loadingBuilder: null,
errorBuilder: errorBuilder,
width: width,
height: height,
color: color,
colorBlendMode: colorBlendMode,
fit: fit,
alignment: alignment,
repeat: repeat,
centerSlice: centerSlice,
gaplessPlayback: gaplessPlayback,
filterQuality: filterQuality
);
}

AssetBundle bundle = null,
ImageFrameBuilder frameBuilder = null,
ImageErrorWidgetBuilder errorBuilder = null,
float? scale = null,
float? width = null,
float? height = null,

ImageRepeat repeat = ImageRepeat.noRepeat,
Rect centerSlice = null,
bool gaplessPlayback = false,
FilterQuality filterQuality = FilterQuality.low
FilterQuality filterQuality = FilterQuality.low,
int cacheWidth = default,
int cacheHeight = default
/*image = ResizeImage.resizeIfNeeded(cacheWidth, cacheHeight, scale != null
? ExactAssetImage(name, bundle: bundle, scale: scale, package: package)
: AssetImage(name, bundle: bundle, package: package)
);*/
key,
image,
width,
height,
color,
colorBlendMode,
fit,
alignment,
repeat,
centerSlice,
gaplessPlayback,
filterQuality
key: key,
image: image,
frameBuilder: frameBuilder,
loadingBuilder: null,
errorBuilder: errorBuilder,
width: width,
height: height,
color: color,
colorBlendMode: colorBlendMode,
fit: fit,
alignment: alignment,
repeat: repeat,
centerSlice: centerSlice,
gaplessPlayback: gaplessPlayback,
filterQuality: filterQuality
);
}

float scale = 1.0f,
ImageFrameBuilder frameBuilder = null,
ImageErrorWidgetBuilder errorBuilder = null,
float? width = null,
float? height = null,
Color color = null,

ImageRepeat repeat = ImageRepeat.noRepeat,
Rect centerSlice = null,
bool gaplessPlayback = false,
FilterQuality filterQuality = FilterQuality.low
FilterQuality filterQuality = FilterQuality.low,
int cacheWidth = default,
int cacheHeight = default
// ResizeImage.resizeIfNeeded(cacheWidth, cacheHeight, MemoryImage(bytes, scale: scale));
key,
memoryImage,
width,
height,
color,
colorBlendMode,
fit,
alignment,
repeat,
centerSlice,
gaplessPlayback,
filterQuality
key: key,
image: memoryImage,
frameBuilder: frameBuilder,
loadingBuilder: null,
errorBuilder: errorBuilder,
width: width,
height: height,
color: color,
colorBlendMode: colorBlendMode,
fit: fit,
alignment: alignment,
repeat: repeat,
centerSlice: centerSlice,
gaplessPlayback: gaplessPlayback,
filterQuality: filterQuality
public readonly ImageFrameBuilder frameBuilder;
public readonly ImageLoadingBuilder loadingBuilder;
public readonly ImageErrorWidgetBuilder errorBuilder;
public readonly float? width;
public readonly float? height;
public readonly Color color;

base.debugFillProperties(properties);
properties.add(new DiagnosticsProperty<ImageProvider>("image", image));
properties.add(new DiagnosticsProperty<ImageFrameBuilder>("frameBuilder", frameBuilder));
properties.add(new DiagnosticsProperty<ImageLoadingBuilder>("loadingBuilder", loadingBuilder));
properties.add(new DiagnosticsProperty<Color>("color", color,
properties.add(new ColorProperty("color", color,
defaultValue: foundation_.kNullDefaultValue));
properties.add(new EnumProperty<BlendMode>("colorBlendMode", colorBlendMode,
defaultValue: foundation_.kNullDefaultValue));

}
}
public class _ImageState : State<Image> {
public class _ImageState : State<Image> ,WidgetsBindingObserver{
//ImageChunkEvent _loadingProgress;
int _frameNumber;
bool _wasSynchronouslyLoaded;
DisposableBuildContext<State<Image>> _scrollAwareContext;
Object _lastException;
StackTrace _lastStack;
public override void initState() {
base.initState();
WidgetsBinding.instance.addObserver(this);
_scrollAwareContext = new DisposableBuildContext<State<Image>>(this);
}
public override void dispose() {
D.assert(_imageStream != null);
WidgetsBinding.instance.removeObserver(this);
_stopListeningToStream();
_scrollAwareContext.dispose();
base.dispose();
}
_invertColors = false;
_updateInvertColors();
_resolveImage();
if (TickerMode.of(context)) {

public override void didUpdateWidget(StatefulWidget oldWidget) {
base.didUpdateWidget(oldWidget);
Image image = (Image) oldWidget;
if (_isListeningToStream &&
(widget.loadingBuilder == null) != (image.loadingBuilder == null)) {
/*_imageStream.removeListener(_getListener(image.loadingBuilder));
_imageStream.addListener(_getListener());*/
}
/*public override void didChangeAccessibilityFeatures() {
base.didChangeAccessibilityFeatures();
setState(() => {
_updateInvertColors();
});
}*/
void _updateInvertColors() {
_invertColors = MediaQuery.of(context, nullOk: true)?.invertColors
?? false;
}
/*ScrollAwareImageProvider provider = new ScrollAwareImageProvider<dynamic>(
context: _scrollAwareContext,
imageProvider: widget.image
);
ImageStream newStream =
provider.resolve(ImageUtils.createLocalImageConfiguration(
context,
size: widget.width != null && widget.height != null
? new Size(widget.width.Value, widget.height.Value)
: null
));*/
ImageStream newStream =
widget.image.resolve(ImageUtils.createLocalImageConfiguration(
context,

D.assert(newStream != null);
_updateSourceStream(newStream);
}
/*ImageStreamListener _getListener(ImageLoadingBuilder loadingBuilder = null) {
loadingBuilder ??= widget.loadingBuilder;
_lastException = null;
_lastStack = null;
return new ImageStreamListener(
_handleImageFrame,
onChunk: loadingBuilder == null ? null : _handleImageChunk,
onError: widget.errorBuilder != null
? (dynamic error, StackTrace stackTrace) => {
setState(() => {
_lastException = error;
_lastStack = stackTrace;
});
}
: null
);
}*/
/*void _handleImageFrame(ImageInfo imageInfo, bool synchronousCall) {
setState(() =>{
_imageInfo = imageInfo;
_loadingProgress = null;
_frameNumber = _frameNumber == null ? 0 : _frameNumber + 1;
_wasSynchronouslyLoaded |= synchronousCall;
});
}
void _handleImageChunk(ImageChunkEvent _event) {
D.assert(widget.loadingBuilder != null);
setState(() => {
_loadingProgress = _event;
});
}*/
void _updateSourceStream(ImageStream newStream) {
if (_imageStream?.key == newStream?.key) {
return;

//_imageStream.removeListener(_getListener());
_imageStream.removeListener(_handleImageChanged);
}

/*setState(() => {
_loadingProgress = null;
_frameNumber = null;
_wasSynchronouslyLoaded = false;
});*/
//_imageStream.addListener(_getListener());
_imageStream.addListener(_handleImageChanged);
}
}

return;
}
//_imageStream.addListener(_getListener());
_imageStream.addListener(_handleImageChanged);
_isListeningToStream = true;
}

return;
}
//_imageStream.removeListener(_getListener());
public override void dispose() {
D.assert(_imageStream != null);
_stopListeningToStream();
base.dispose();
}
if (_lastException != null) {
D.assert(widget.errorBuilder != null);
return widget.errorBuilder(context, _lastException, _lastStack);
}
RawImage image = new RawImage(
image: _imageInfo?.image,
width: widget.width,

invertColors: _invertColors,
filterQuality: widget.filterQuality
);
/*if (widget.frameBuilder != null)
image = widget.frameBuilder(context, image, _frameNumber, _wasSynchronouslyLoaded);
if (widget.loadingBuilder != null)
image = widget.loadingBuilder(context, image, _loadingProgress);*/
return image;
}

description.add(new DiagnosticsProperty<ImageInfo>("pixels", _imageInfo));
//description.add(new DiagnosticsProperty<ImageChunkEvent>("loadingProgress", _loadingProgress));
description.add(new DiagnosticsProperty<int>("frameNumber", _frameNumber));
description.add(new DiagnosticsProperty<bool>("wasSynchronouslyLoaded", _wasSynchronouslyLoaded));
}
public void didChangeMetrics() {
setState();
}
public void didChangeTextScaleFactor() {
setState();
}
public void didChangePlatformBrightness() {
setState();
}
public void didChangeLocales(List<Locale> locale) {
setState();
}
public Future<bool> didPopRoute() {
return Future.value(false).to<bool>();
}
public Future<bool> didPushRoute(string route) {
return Future.value(false).to<bool>();
}
}
}
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