[英]How can i clean and organize up my View (MVC) better
So i got the grip on the basic MVC patterns in java using Observer / Observable method. 所以我使用Observer / Observable方法掌握了java中的基本MVC模式。 Now in interest of keeping it clean and readable i would like some pointers before i move on regarding how to well organize my View as this is where my Classes get most filled up.
现在为了保持它的清洁和可读性,我想在我继续讨论如何很好地组织我的视图之前有一些指示,因为这是我的课程最充满的地方。 We been told in school to keep file size per class bellow 20kb to keep it readable and later easier maintainable.
我们在学校被告知要保持每个类的文件大小低于20kb以保持可读性,以后更容易维护。
Here is my view: 这是我的观点:
package view;
import model.*;
import helper.*;
import java.awt.*;
import java.awt.event.*;
import javax.swing.*;
import java.util.Observable;
import java.util.Observer;
import net.miginfocom.swing.MigLayout;
public class View extends JFrame implements Observer
{
private Model model;
private JPanel left = new JPanel(new MigLayout());
private JPanel center = new JPanel(new MigLayout());
private JPanel right = new JPanel(new MigLayout());
private void setConstraints()
{
this.left.setMinimumSize(new Dimension(252, 540));
this.left.setMaximumSize(new Dimension(252, 37500));
this.center.setMinimumSize(new Dimension(298, 540));
this.right.setMinimumSize(new Dimension(250, 540));
this.right.setMaximumSize(new Dimension(250, 37500));
}
//Left panel contents
private Towers box = new Towers();
private Modules tree = new Modules();
private JPanel setupLeft()
{
this.left.add(this.box, "growx, pushx, wrap");
this.left.add(new JScrollPane(this.tree), "grow, push");
return this.left;
}
//Center panel contents
private Browser browser = new Browser();
private JPanel setupCenter()
{
this.center.add(new JScrollPane(this.browser), "grow, push");
return this.center;
}
//Right panel contents
private JLabel tower = new JLabel("No tower selected.");
private JLabel cap = new JLabel("Capacitor");
private JLabel cpu = new JLabel("CPU");
private JLabel shield = new JLabel("0");
private JLabel armor = new JLabel("0");
private JLabel em = new JLabel("0.0");
private JLabel th = new JLabel("0.0");
private JLabel kn = new JLabel("0.0");
private JLabel ex = new JLabel("0.0");
private JPanel setupRight()
{
this.right.add(this.tower, "span, wrap");
this.right.add(this.cap, "span, wrap");
this.right.add(this.cpu, "span, wrap");
this.right.add(this.shield, "span, wrap");
this.right.add(this.armor, "span, wrap");
this.right.add(this.em, "span, wrap");
this.right.add(this.th, "span, wrap");
this.right.add(this.kn, "span, wrap");
this.right.add(this.ex, "span, wrap");
return this.right;
}
public View(Model ui_model)
{
model = ui_model;
this.setTitle("MVC Experiment 6");
this.setDefaultCloseOperation(JFrame.EXIT_ON_CLOSE);
this.setExtendedState(JFrame.MAXIMIZED_BOTH);
this.setMinimumSize(new Dimension(800, 600));
this.setLayout(new MigLayout());
this.setConstraints();
this.add(this.setupLeft(), "dock west");
this.add(this.setupCenter(), "dock center");
this.add(this.setupRight(), "dock east");
}
//Left panel contents - Listeners and methods for addressing JComponents
public void xTowersBrowser(ActionListener event)
{
this.box.addActionListener(event);
}
public void xModulesBrowser(MouseListener event)
{
this.tree.addMouseListener(event);
}
public Towers getTowersBrowser()
{
return this.box;
}
public Modules getModulesBrowser()
{
return this.tree;
}
//Left panel - END
//Center panel - components :: listeners and methods
public void xBrowser(MouseListener event)
{
this.browser.addMouseListener(event);
}
public Browser getBrowser()
{
return this.browser;
}
//Center panel - END
public void update(Observable o, Object arg)
{
}
}
Any suggestions on what to separate in new classes or how to minimize the code are helpful. 关于在新类中分离什么或如何最小化代码的任何建议都是有帮助的。 This is just a cut out of my main View class there are still a lot of JComponents missing so it will get more messy.
这只是我的主要View类的一个缺失,仍然有很多JComponents丢失,所以它会变得更加凌乱。
I take this opportunity to present my ideal MVC ideas. 我借此机会展示我理想的MVC创意。
The wiring between the components can benefit from the brevity of the class EventHandler
, http://docs.oracle.com/javase/6/docs/api/java/beans/EventHandler.html . 组件之间的连接可以受益于
EventHandler
类的简洁, http://docs.oracle.com/javase/6/docs/api/java/beans/EventHandler.html 。
Let's constrain the GUI to java swing. 让我们将GUI限制为java swing。
To integrate MVC one has a model, possibly composed of submodels. 为了集成MVC,有一个模型,可能由子模型组成。 And one could have an abstract view class, possibly composed of subviews.
人们可以拥有一个抽象的视图类,可能由子视图组成。 This abstract view class is the factory of all swing components / subviews, with the injection of the model and the binding, by the controller.
这个抽象视图类是所有swing组件/子视图的工厂,由控制器注入模型和绑定。
In the GUI builder one can add a JTextField a
with as custom creation code view.a.create()
. 在GUI构建器中,可以添加JTextField
a
作为自定义创建代码view.a.create()
。 After initComponents one can call view.checkRequiredCreated()
which might throw an informative exception on missing creations. 在initComponents之后,可以调用
view.checkRequiredCreated()
,这可能会在缺少的创建上引发一个信息性异常。
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