composition

UWP App realtime blur background using DX Compositor

由 坚强是说给别人听的谎言 提交于 2019-11-26 14:20:03
问题 So the UWP Composition support has been out for a while I am looking for a way to do real-time blurring of elements (live blur as they move or load, not static snapshot). So far I have been looking at some answers on stackoverflow, and google which lead me to use Lumia Imaging SDK Sample and Win2D. None of them are good enough for realtime blur support. I know doing blur in realtime is possible in composition because I have seen demos of blurred videos and there is an obsolete project XAMLFx

Object Oriented Best Practices - Inheritance v Composition v Interfaces [closed]

由 房东的猫 提交于 2019-11-26 12:52:59
问题 Closed . This question is opinion-based. It is not currently accepting answers. Want to improve this question? Update the question so it can be answered with facts and citations by editing this post. Closed last month . I want to ask a question about how you would approach a simple object-oriented design problem. I have a few ideas of my own about what the best way of tackling this scenario, but I would be interested in hearing some opinions from the Stack Overflow community. Links to

C++ implicit copy constructor for a class that contains other objects

由 泄露秘密 提交于 2019-11-26 12:50:12
I know that the compiler sometimes provides a default copy constructor if you don't implement yourself. I am confused about what exactly this constructor does. If I have a class that contains other objects, none of which have a declared copy constructor, what will the behavior be? For example, a class like this: class Foo { Bar bar; }; class Bar { int i; Baz baz; }; class Baz { int j; }; Now if I do this: Foo f1; Foo f2(f1); What will the default copy constructor do? Will the compiler-generated copy constructor in Foo call the compiler-generated constructor in Bar to copy over bar , which will

Canvas image masking / overlapping

由 心不动则不痛 提交于 2019-11-26 10:13:13
问题 In my project i have to implement one different color image on the other same size and pattern image using canvas and images are not in round or rectangle shapes. That all are in waves shape and it will apply on a single main background image for showing multiple graphics on every onclick function. Overlapped image should be change in another selected color. My question Is there any way with using canvas from that we can change the image color which is draw by canvas or we need to use

How to compose `not` with a function of arbitrary arity?

由 核能气质少年 提交于 2019-11-26 09:25:12
问题 When I have some function of type like f :: (Ord a) => a -> a -> Bool f a b = a > b I should like make function which wrap this function with not. e.g. make function like this g :: (Ord a) => a -> a -> Bool g a b = not $ f a b I can make combinator like n f = (\\a -> \\b -> not $ f a b) But I don\'t know how. *Main> let n f = (\\a -> \\b -> not $ f a b) n :: (t -> t1 -> Bool) -> t -> t1 -> Bool Main> :t n f n f :: (Ord t) => t -> t -> Bool *Main> let g = n f g :: () -> () -> Bool What am I

How to use Facelets composition with files from another context

由 谁说胖子不能爱 提交于 2019-11-26 08:33:52
问题 I have an application that use composition (for page templates). But we think in create a web-application (war) to host all templates shared by all applications in the same host of all applications. How I can include a template from another context? At this time I use import from http request. But it\'s sounds like bad. <ui:composition template=\"http://localhost:8080/templates/layout/foo.xhtml\"> I\'m using JBoss Seam 2.x with JSF 1. 回答1: Note that this is to be done differently in JSF 2.x

Mixins for ES6 classes, transpiled with babel

由 天涯浪子 提交于 2019-11-26 08:19:54
问题 According to various sources (2ality, esdiscuss) one should be able to add mixins to classes: EDIT discovered that class methods are not enumerable so that cannot work. Edited the code below, but still no joy class CartoonCharacter { constructor(author) { this.author = author; } drawnBy() { console.log(\"drawn by\", this.author); } } // THIS CANNOT WORK // class methods are not enumerable // class Human { // haveFun() { // console.log(\"drinking beer\"); // } // } let Human = Object.create({}

What is composition as it relates to object oriented design?

由 丶灬走出姿态 提交于 2019-11-26 08:02:32
问题 I hear (and read on this site) a lot about \"favour composition over inheritance\". But what is Compositon? I understand inheritance from the point of Person : Mammal : Animal, but I can\'t really see the definition of Compostion anywhere.. Can somebody fill me in? 回答1: Composition refers to combining simple types to make more complex ones. In your example, composition could be: Animal: Skin animalSkin Organs animalOrgans Mammal::Animal: Hair/fur mammalFur warm-blooded-based_cirulation_system

Composing functions in python

由 天大地大妈咪最大 提交于 2019-11-26 06:37:14
问题 I have an array of functions and I\'m trying to produce one function which consists of the composition of the elements in my array. My approach is: def compose(list): if len(list) == 1: return lambda x:list[0](x) list.reverse() final=lambda x:x for f in list: final=lambda x:f(final(x)) return final This method doesn\'t seems to be working, help will be appreciated. (I\'m reversing the list because this is the order of composition I want the functions to be) 回答1: It doesn't work because all

Implementation difference between Aggregation and Composition in Java

由 笑着哭i 提交于 2019-11-26 04:57:38
问题 I\'m aware of the conceptual differences between Aggregation and Composition. Can someone tell me the implementation difference in Java between them with examples? 回答1: Composition final class Car { private final Engine engine; Car(EngineSpecs specs) { engine = new Engine(specs); } void move() { engine.work(); } } Aggregation final class Car { private Engine engine; void setEngine(Engine engine) { this.engine = engine; } void move() { if (engine != null) engine.work(); } } In the case of
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