gui design patterns

is the new Pegadapter, called Two-way adapter:1 Public classPegadapterImplementsiroundpeg,isquarepeg{2 3 　　 Privateroundpeg roundpeg;4 　　 Privatesquarepeg squarepeg;5 6 　　 //Construction Method7 　　 PublicPegadapter (Roundpeg peg) { This. roundpeg=peg;}8 　　 //Construction Method9 　　 PublicPegadapter (Squarepeg Peg) ( This. squarepeg=peg;)Ten One 　　 Public voidInsert (String str) {roundpeg.insertintohole (str);} A -}　　There is also a kind of called pluggable adapters, can dynamically

observers, that is, dependent objects, each time data changes, these 2 view will changeclassHexviewer (object):defUpdate (self, subject):Print 'hexviewer:subject%s has data 0x%x'%(Subject.name, Subject.data)classDecimalviewer (object):defUpdate (self, subject):Print 'decimalviewer:subject%s has data%d'%(Subject.name, Subject.data)if __name__=='__main__': Data1= Data ('Data 1') Data2= Data ('Data 2') View1=decimalviewer () view2=hexviewer () Data1.attach (view1) Data1.attach (view2) Data2.attach

Java classic 23 design patterns: behavioral patterns (4) This article describes the policy mode, template method, and visitor mode in 11 behavioral design patterns.I. Policy Mode Define a series of algorithms, encapsulate each of them, and make them replaceable. This mode allows algorithms to change independently of cu

Java implementation of structural design patterns-appearance patterns I. Description The appearance mode is also called the facade mode, which is to package a complex system. The external interfaces of the system are provided by the appearance class. When a complex system needs to provide external interfaces, it needs to encapsulate the interfaces provided extern

;temperature = temperature;this->humidity = humidity;This->pressure = pressure;Measurementschanged ();}};Class Currentconditionsdisplay:public Observer,public Displayelement{Publicfloat temperature;float humidity;subject* Weatherdata;PublicCurrentconditionsdisplay (subject* in_weatherdata){This->weatherdata = In_weatherdata;In_weatherdata->registerobjecet (/* (observer*) */this);}void update (float temperature,float humidity,float pressure){This->temperature = temperature;this->humidity = humidi

20170312: The reason for learning is that companies use Sprint.net, managed methods, prevent multiple instances of classes, waste space. NET Design Patterns:NET design Pattern Example Singleton pattern (Singleton pattern)One: Introduction to the Singleton mode: (Brief Introduction)Singleton mode (Singleton pattern), which guarantees that a class has only one instance, and provides a global access point to a

I. Introduction to the Model Appearance patterns (façade pattern) can wrap a series of complex classes into a simple, closed interface. Also called the façade mode. Second, the mode of intent Each design pattern has its purpose, and we look at how the design patterns of the patriarch say it. According to Gof, the fa

', ' cb_ '] if (name.split ('_') [0]+ ' _ ') in matches: return True return False def _get_input_ctrls (self, container): if container: cs = container.grid_slaves () Cs.extend (Container.pack_slaves ()) for C in CS: if Self._is_input (c): Self.input_ctrls.append (c) Else: self._get_input_ctrls (c) def get_input_ctrls (self): self.input_ctrls=[

This paper describes the design of the controller based on RS232 interface. It uses a single-chip microcomputer to control the interface chip nat914, and uses SCPI statements in the Super Terminal of the serial communication tool that comes with the winelows operating system, the communication and program-controlled operation between the computer and the Kaplan instrument is realized. More and more measuring instruments provide the general purpose int

This article references:: Geekband classroom content, Instructor: Li Jianzhong: Network information: http://blog.csdn.net/hguisu/article/details/7556625This article only as own study note, does not represent the authority, because is the beginner, has the mistake to please everybody correct, thanks.1, what is the Observer mode, where are the application sites?The Observer pattern (sometimes called the publish-subscribe subscribe> mode, model-view view> mode, source-listener listener> mode, or sl

The essentials and patterns of software design (version 2nd) is the book on software design and design patterns published by Zhang Yi of garden in April this year. I got it in late May and read a chapter every night, after reading chapter 28 of the book on and off last night

Design Patterns notes-Abstract Factory patterns Abstract:Design Pattern learning-abstract factory patternThis paper introduces the basic concepts of the abstract factory model and provides the C # Programming LanguageProgramExample Abstract Factory mode provides an interface to the client, so that the client creates objects in multiple product families withou

1. Adapter mode1) Class of Adapter mode　　　2) The adapter mode of the object　　3) adapter mode for the interfaceThe adapter for the interface is this: sometimes we write an interface with multiple abstract methods, and when we write the implementation class of the interfaces, we must implement all the methods of the interface, which is obviously sometimes wasteful, because not all methods are needed, sometimes only some, here in order to solve this problem, We introduced an interface adapter patte

(); Stockquotation.setvalue (2090.9);}}We found that the main class calledBillboard.deletethisdisplay ();Then the bulletin board Billboard was no longer an observer, and all it could not receive was any stock market.This simple code implements the Observer pattern.We can find out. When a new type of observer appears. The code for the theme does not need to be changed.The subject does not care about anything else, just sends a notification to all objects that implement the Observer interface.The

of the Object.defineproperties or Object.defineproperty method type. It allows you to set properties such as enumerable, writable, or configurable. If you want to implement prototype mode yourself, instead of using object.create directly. You can use code like the following to achieve the above example:varVehicleprototype ={init:function(Carmodel) { This. Model =Carmodel; }, Getmodel:function() {Console.log (' Vehicle mould is: ' + This. Model); }};functionVehicle (model) {functionF () {}; F.pr

Java and design patterns-template patterns The template mode can be understood as the step mode, and the steps can be clearly followed when you add the template mode. The concept of a template should be very familiar to many people. Write a resume and a thesis. If there is a template for our reference, it will be easier to write and more handy. This resume templa

Common Java design patterns-adapter patterns The Adapter mode is introduced to solve the incompatibility mismatch problem. Definition: The adapter mode converts the excuse of a class into another interface that the customer expects, so that the classes that originally cannot work together due to interface incompatibility can work together. Category: 1. Combinati

Chapter 1 of design patterns-Abstract Factory patterns (Java implementation)"The last time was my fault. The author of bribery asked me to talk about it first. However, my wife and adults have a lot to do with me, this time, let me add the application scenarios that have not been completed last time." (After that, I touched my knees and coughed. I didn't smile! R

Chapter 1 of design patterns-factory method patterns (Java implementation)"I come first", "No, husband, I come first !". I heard a few people from far away. Oh no, it's the factory method model and the abstract factory model. The couple are quarreling. nimei is not eating, not all come first (the world of food ~). "Abstract Factory model, fast self-introduction,

the action executes.It is necessary to verify the existence of the message before executing the message action queue, and then traverse the message execution method queue and execute it sequentially.function (type, args) { if (! _messages[type]) { return; }; var events = { type:type, | | {} }; for (var i = 0, len = _messages[type].length; i ) { _messages[type][i].call (this , args); 3. The ability to unregister a message removes the message fr