TextureAnimationElement class
class TextureAnimationElement extends PElement { final TextureData _textureData; final List<TextureAnimationRequest> _requests = new List<TextureAnimationRequest>(); TextureAnimationElement(num width, num height, this._textureData) : super(width, height); void add(TextureAnimationRequest request) { assert(request != null); assert(request.fresh); _requests.add(request); invalidateDraw(); } void update() { var toRemove = new List<TextureAnimationRequest>(); for(final r in _requests) { r.update(); assert(!r.fresh); if(r.done) { toRemove.add(r); } } for(final r in toRemove) { final i = _requests.indexOf(r, 0); assert(i >= 0); _requests.removeRange(i, 1); } if(_requests.length > 0) { invalidateDraw(); } } void drawOverride(CanvasRenderingContext2D ctx) { for(final r in _requests) { final data = r._getFrameDetails(); final offset = data.item1; final frameName = data.item2; ctx.save(); ctx.translate(offset.x, offset.y); _textureData.drawTextureKeyAt(ctx, frameName); ctx.restore(); } } }
Extends
DisposableImpl > AttachableObject > PElement > TextureAnimationElement
Constructors
new TextureAnimationElement(num width, num height, TextureData _textureData) #
TextureAnimationElement(num width, num height, this._textureData) : super(width, height);
Properties
num height #
num get height => _height;
void set height(num value) { assert(isValidNumber(value)); _height = value; invalidateDraw(); }
final EventRoot<EventArgs> invalidated #
EventRoot<EventArgs> get invalidated => _invalidatedEventHandle;
final Type runtimeType #
A representation of the runtime type of the object.
external Type get runtimeType;
Operators
bool operator ==(other) #
The equality operator.
The default behavior for all Object
s is to return true if and
only if this
and
other are the same object.
If a subclass overrides the equality operator it should override
the hashCode
method as well to maintain consistency.
bool operator ==(other) => identical(this, other);
Methods
void add(TextureAnimationRequest request) #
void add(TextureAnimationRequest request) { assert(request != null); assert(request.fresh); _requests.add(request); invalidateDraw(); }
AffineTransform addTransform() #
AffineTransform addTransform(){ validateNotDisposed(); var tx = new AffineTransform(); _transforms.add(tx); return tx; }
void dispose() #
void dispose(){ if (!_disposed) { // Set disposed_ to true first, in case during the chain of disposal this // gets disposed recursively. this._disposed = true; this.disposeInternal(); } }
void disposeInternal() #
Do not call this method directly. Call dispose
instead.
Subclasses should override this method to implement Disposable
behavior.
void disposeInternal(){ super.disposeInternal(); _invalidatedEventHandle.dispose(); }
void drawCore(CanvasRenderingContext2D ctx) #
void drawCore(CanvasRenderingContext2D ctx){ if(cacheEnabled) { _drawCached(ctx); } else { _drawNormal(ctx); } }
void drawOverride(CanvasRenderingContext2D ctx) #
void drawOverride(CanvasRenderingContext2D ctx) { for(final r in _requests) { final data = r._getFrameDetails(); final offset = data.item1; final frameName = data.item2; ctx.save(); ctx.translate(offset.x, offset.y); _textureData.drawTextureKeyAt(ctx, frameName); ctx.restore(); } }
AffineTransform getTransform() #
AffineTransform getTransform() { var tx = new AffineTransform(); _transforms.forEach(tx.concatenate); return tx; }
AffineTransform getTransformToRoot() #
AffineTransform getTransformToRoot(){ var tx = new AffineTransform(); if(_parent != null){ tx.concatenate(_parent.getTransformToRoot()); } tx.concatenate(getTransform()); return tx; }
int hashCode() #
Get a hash code for this object.
All objects have hash codes. Hash codes are guaranteed to be the
same for objects that are equal when compared using the equality
operator ==
. Other than that there are no guarantees about
the hash codes. They will not be consistent between runs and
there are no distribution guarantees.
If a subclass overrides hashCode
it should override the
equality operator as well to maintain consistency.
external int hashCode();
void invalidateDraw() #
void invalidateDraw(){ validateNotDisposed(); if(_lastDrawSize != null){ _lastDrawSize = null; _invalidateParent(); } }
noSuchMethod(String name, List args) #
noSuchMethod
is invoked when users invoke a non-existant method
on an object. The name of the method and the arguments of the
invocation are passed to noSuchMethod
. If noSuchMethod
returns a value, that value becomes the result of the original
invocation.
The default behavior of noSuchMethod
is to throw a
noSuchMethodError
.
external Dynamic noSuchMethod(String name, List args);
const Object() #
Creates a new Object
instance.
Object
instances have no meaningful state, and are only useful
through their identity. An Object
instance is equal to itself
only.
const Object();
new PElement(num _width, num _height, [bool cacheEnabled = false]) #
PElement(this._width, this._height, [this.cacheEnabled = false]);
void registerParent(ElementParent parent) #
void registerParent(ElementParent parent) { assert(_parent == null); assert(parent != null); _parent = parent; }
new TextureAnimationElement(num width, num height, TextureData _textureData) #
TextureAnimationElement(num width, num height, this._textureData) : super(width, height);
String toString() #
Returns a string representation of this object.
external String toString();
void update() #
void update() { var toRemove = new List<TextureAnimationRequest>(); for(final r in _requests) { r.update(); assert(!r.fresh); if(r.done) { toRemove.add(r); } } for(final r in toRemove) { final i = _requests.indexOf(r, 0); assert(i >= 0); _requests.removeRange(i, 1); } if(_requests.length > 0) { invalidateDraw(); } }
void validateNotDisposed() #
void validateNotDisposed() { assert(!_disposed); }