void _paintBackgroundImage(Canvas canvas, Rect rect, ImageConfiguration configuration)
{
if (this._decoration.image == null)
{
return;
}
this._imagePainter = this._imagePainter ?? this._decoration.image.createPainter(this.onChanged);
Path clipPath = null;
switch (this._decoration.shape)
{
case BoxShape.circle:
clipPath = new Path();
clipPath.addOval(rect);
break;
case BoxShape.rectangle:
if (this._decoration.borderRadius != null)
{
clipPath = new Path();
clipPath.addRRect(this._decoration.borderRadius.toRRect(rect));
}
break;
}
this._imagePainter.paint(canvas, rect, clipPath, configuration);
}
public override Future <AssetBundleImageKey> obtainKey(ImageConfiguration configuration)
{
return(new SynchronousFuture <AssetBundleImageKey>(new AssetBundleImageKey(
bundle: bundle?bundle: configuration.bundle,
name: assetName,
scale: scale
)));
}
protected override IPromise <AssetBundleImageKey> obtainKey(ImageConfiguration configuration)
{
return(Promise <AssetBundleImageKey> .Resolved(new AssetBundleImageKey(
bundle : this.bundle ? this.bundle : configuration.bundle,
name : this.assetName,
scale : this.scale
)));
}
void _paintImage(Canvas canvas, ImageConfiguration configuration)
{
if (this._decoration.image == null)
{
return;
}
this._imagePainter = this._imagePainter ?? this._decoration.image.createPainter(this.onChanged);
this._imagePainter.paint(canvas, this._lastRect, this._innerPath, configuration);
}
void _paintImage(Canvas canvas, ImageConfiguration configuration)
{
if (_decoration.image == null)
{
return;
}
_imagePainter = _imagePainter ?? _decoration.image.createPainter(onChanged);
_imagePainter.paint(canvas, _lastRect, _innerPath, configuration);
}
public override void paint(Canvas canvas, Offset offset, ImageConfiguration configuration)
{
D.assert(configuration != null);
D.assert(configuration.size != null);
Rect rect = offset & configuration.size;
this._precache(rect);
this._paintShadows(canvas);
this._paintInterior(canvas);
this._paintImage(canvas, configuration);
this._decoration.shape.paint(canvas, rect);
}
internal string _chooseVariant(string main, ImageConfiguration config, List <string> candidates)
{
if (config.devicePixelRatio == null || candidates == null || candidates.isEmpty())
{
return(main);
}
SplayTree <float, string> mapping = new SplayTree <float, string>();
foreach (string candidate in candidates)
{
mapping[_parseScale(candidate)] = candidate;
}
return(_findNearest(mapping, config.devicePixelRatio ?? 0));
}
public override void paint(Canvas canvas, Offset offset, ImageConfiguration configuration)
{
D.assert(configuration != null);
D.assert(configuration.size != null);
Rect rect = offset & configuration.size;
this._paintShadows(canvas, rect);
this._paintBackgroundColor(canvas, rect);
this._paintBackgroundImage(canvas, rect, configuration);
this._decoration.border?.paint(
canvas,
rect,
shape: this._decoration.shape,
borderRadius: this._decoration.borderRadius
);
}
public void paint(Canvas canvas, Rect rect, Path clipPath, ImageConfiguration configuration)
{
D.assert(canvas != null);
D.assert(rect != null);
D.assert(configuration != null);
ImageStream newImageStream = this._details.image.resolve(configuration);
if (newImageStream.key != this._imageStream?.key)
{
this._imageStream?.removeListener(this._imageListener);
this._imageStream = newImageStream;
this._imageStream.addListener(this._imageListener);
}
if (this._image == null)
{
return;
}
if (clipPath != null)
{
canvas.save();
canvas.clipPath(clipPath);
}
ImageUtils.paintImage(
canvas: canvas,
rect: rect,
image: this._image.image,
scale: this._image.scale,
colorFilter: this._details.colorFilter,
fit: this._details.fit,
alignment: this._details.alignment,
centerSlice: this._details.centerSlice,
repeat: this._details.repeat
);
if (clipPath != null)
{
canvas.restore();
}
}
public override Future <AssetBundleImageKey> obtainKey(ImageConfiguration configuration)
{
AssetImageConfiguration assetConfig = new AssetImageConfiguration(configuration, assetName);
AssetBundleImageKey key;
var cache = AssetBundleCache.instance.get(configuration.bundle);
if (cache.TryGetValue(assetConfig, out key))
{
return(new SynchronousFuture <AssetBundleImageKey>(key));
}
AssetBundle chosenBundle = bundle ? bundle : configuration.bundle;
var devicePixelRatio = configuration.devicePixelRatio ?? Window.instance.devicePixelRatio;
key = _loadAsset(chosenBundle, devicePixelRatio);
cache[assetConfig] = key;
return(new SynchronousFuture <AssetBundleImageKey>(key));
}
protected override IPromise <AssetBundleImageKey> obtainKey(ImageConfiguration configuration)
{
AssetImageConfiguration assetConfig = new AssetImageConfiguration(configuration, this.assetName);
AssetBundleImageKey key;
var cache = AssetBundleCache.instance.get(configuration.bundle);
if (cache.TryGetValue(assetConfig, out key))
{
return(Promise <AssetBundleImageKey> .Resolved(key));
}
AssetBundle chosenBundle = this.bundle ? this.bundle : configuration.bundle;
var devicePixelRatio = configuration.devicePixelRatio ?? Window.instance.devicePixelRatio;
key = this._loadAsset(chosenBundle, devicePixelRatio);
cache[assetConfig] = key;
return(Promise <AssetBundleImageKey> .Resolved(key));
}
IPromise <AssetBundleImageKey> obtainKey(ImageConfiguration configuration)
{
AssetImageConfiguration assetConfig = new AssetImageConfiguration(configuration, this.assetName);
AssetBundleImageKey key;
var cache = AssetBundleCache.instance.get(configuration.bundle);
if (cache.TryGetValue(assetConfig, out key))
{
return(Promise <AssetBundleImageKey> .Resolved(key));
}
AssetBundle chosenBundle = this.bundle ? this.bundle : configuration.bundle;
var devicePixelRatio = configuration.devicePixelRatio ?? Window.instance.devicePixelRatio;
var coroutine = Window.instance.startCoroutine(this._loadAssetAsync(chosenBundle, devicePixelRatio));
return(coroutine.promise.Then(result => {
D.assert(result != null);
key = (AssetBundleImageKey)result;
cache[assetConfig] = key;
return key;
}));
}
public override Future <_SizeAwareCacheKey> obtainKey(ImageConfiguration configuration)
{
Completer completer = null;
SynchronousFuture <_SizeAwareCacheKey> result = null;
imageProvider.obtainKey(configuration).then((object key) => {
// TODO: completer is always null?
if (completer == null)
{
result = new SynchronousFuture <_SizeAwareCacheKey>(new _SizeAwareCacheKey(key, width, height));
}
else
{
completer.complete(FutureOr.value(new _SizeAwareCacheKey(key, width, height)));
}
});
if (result != null)
{
return(result);
}
completer = Completer.create();
return(completer.future.to <_SizeAwareCacheKey>());
}
protected override IPromise <MemoryImage> obtainKey(ImageConfiguration configuration)
{
return(Promise <MemoryImage> .Resolved(this));
}
public abstract ImageStream resolve(ImageConfiguration configuration);
public void paint(Canvas canvas, Rect rect, Path clipPath, ImageConfiguration configuration)
{
D.assert(canvas != null);
D.assert(rect != null);
D.assert(configuration != null);
bool flipHorizontally = false;
if (_details.matchTextDirection)
{
D.assert(() => {
// We check this first so that the assert will fire immediately, not just
// when the image is ready.
if (configuration.textDirection == null)
{
throw new UIWidgetsError(new List <DiagnosticsNode>()
{
new ErrorSummary(
"DecorationImage.matchTextDirection can only be used when a TextDirection is available."),
new ErrorDescription(
"When DecorationImagePainter.paint() was called, there was no text direction provided " +
"in the ImageConfiguration object to match."
),
new DiagnosticsProperty <DecorationImage>("The DecorationImage was", _details,
style: DiagnosticsTreeStyle.errorProperty),
new DiagnosticsProperty <ImageConfiguration>("The ImageConfiguration was", configuration,
style: DiagnosticsTreeStyle.errorProperty)
});
}
return(true);
});
if (configuration.textDirection == TextDirection.rtl)
{
flipHorizontally = true;
}
}
ImageStream newImageStream = _details.image.resolve(configuration);
if (newImageStream.key != _imageStream?.key)
{
ImageStreamListener listener = new ImageStreamListener(
_handleImage,
onError: _details.onError
);
_imageStream?.removeListener(listener);
_imageStream = newImageStream;
_imageStream.addListener(listener);
}
if (_image == null)
{
return;
}
if (clipPath != null)
{
canvas.save();
canvas.clipPath(clipPath);
}
painting_.paintImage(
canvas: canvas,
rect: rect,
image: _image.image,
scale: _image.scale,
colorFilter: _details.colorFilter,
fit: _details.fit,
alignment: _details.alignment.resolve(configuration.textDirection),
centerSlice: _details.centerSlice,
repeat: _details.repeat,
flipHorizontally: flipHorizontally,
filterQuality: FilterQuality.low
);
if (clipPath != null)
{
canvas.restore();
}
}
public AssetImageConfiguration(ImageConfiguration configuration, string assetName)
{
this.configuration = configuration;
this.assetName = assetName;
}
public abstract void paint(Canvas canvas, Offset offset, ImageConfiguration configuration);
public override Future <FileImage> obtainKey(ImageConfiguration configuration)
{
return(new SynchronousFuture <FileImage>(this));
}
public override Future <MemoryImage> obtainKey(ImageConfiguration configuration)
{
return(new SynchronousFuture <MemoryImage>(this));
//Future.value(FutureOr.value(this)).to<MemoryImage>();
}
