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问题是非常明显的，所以我想在按下按钮（或在我的情况下的标签）后，布局将更改和更新。我尝试了几个解决方案，但没有为我工作。该更改位于“登录”鼠标轨道侦听器中的createLoginLayout（）中。我知道代码看起来过于复杂，这是因为我用的WindowBuilderSWT重绘外壳
protected Shell mainShell;
private Text hangmanPic;
private Text clueField;
private Composite alphabetComposite;
private Display display;
private Label currGuess;
private GameManager gameManager;
private Label clueTitle;
private Text usrField;
private Label passTitle;
private Text passField;
private Label login;
private Label register;
public static void main(String[] args) {
try {
Main window = new Main();
window.open();
} catch (Exception e) {
e.printStackTrace();
}
}
/**
* Open the window.
*/
public void open() {
display = Display.getDefault();
createContents();
mainShell.open();
mainShell.layout();
while (!mainShell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
}
/**
* Create contents of the window.
* @wbp.parser.entryPoint
*/
protected void createContents() {
//Init new game
gameManager=new GameManager();
//createGameMainLayout();
createLoginLayout();
//createRegisterLayout();
}
/**
* Creates the layout of the login page
*/
private void createLoginLayout(){
mainShell = new Shell(display,SWT.CLOSE | SWT.TITLE | SWT.MIN);
mainShell.setSize(685, 481);
mainShell.setText("Location Hangman");
mainShell.setLayout(new FormLayout());
Image image = new Image(display, System.getProperty("user.dir")+"/res/back.jpg");
mainShell.setBackgroundImage(image);
mainShell.setBackgroundMode(SWT.INHERIT_FORCE);
Label gameTitle = new Label(mainShell, SWT.NONE);
gameTitle.setFont(new Font(Display.getDefault(),"DJB CHALK IT UP", 40, SWT.NONE));
gameTitle.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
gameTitle.setAlignment(SWT.CENTER);
gameTitle.setText("Location Hangman ^");
FormData fd_gameTitle = new FormData();
fd_gameTitle.top = new FormAttachment(0, 94);
fd_gameTitle.left = new FormAttachment(0, 10);
fd_gameTitle.right = new FormAttachment(100, -10);
fd_gameTitle.bottom = new FormAttachment(0, 163);
gameTitle.setLayoutData(fd_gameTitle);
Label usrTitle = new Label(mainShell, SWT.NONE);
usrTitle.setFont(new Font(Display.getDefault(),"DJB CHALK IT UP", 20, SWT.NONE));
usrTitle.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
usrTitle.setAlignment(SWT.RIGHT);
FormData fd_usrTitle = new FormData();
fd_usrTitle.top = new FormAttachment(gameTitle, 81);
fd_usrTitle.left = new FormAttachment(0, 10);
usrTitle.setLayoutData(fd_usrTitle);
usrTitle.setText("Username:");
usrField = new Text(mainShell, SWT.NONE);
fd_usrTitle.right = new FormAttachment(usrField, -6);
usrField.setFont(new Font(Display.getDefault(),"DJB CHALK IT UP", 20, SWT.NONE));
usrField.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
FormData fd_usrField = new FormData();
fd_usrField.left = new FormAttachment(0, 331);
fd_usrField.right = new FormAttachment(100, -148);
fd_usrField.top = new FormAttachment(gameTitle, 81);
usrField.setLayoutData(fd_usrField);
passTitle = new Label(mainShell, SWT.NONE);
passTitle.setFont(new Font(Display.getDefault(),"DJB CHALK IT UP", 20, SWT.NONE));
passTitle.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
passTitle.setAlignment(SWT.RIGHT);
FormData fd_passTitle = new FormData();
fd_passTitle.top = new FormAttachment(usrTitle, 22);
fd_passTitle.right = new FormAttachment(usrTitle, 0, SWT.RIGHT);
fd_passTitle.left = new FormAttachment(0, 10);
passTitle.setLayoutData(fd_passTitle);
passTitle.setText("Password:");
passField = new Text(mainShell, SWT.PASSWORD | SWT.NONE);
passField.setFont(new Font(Display.getDefault(),"DJB CHALK IT UP", 20, SWT.NONE));
passField.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
FormData fd_passField = new FormData();
fd_passField.top = new FormAttachment(passTitle, 0, SWT.TOP);
fd_passField.left = new FormAttachment(usrField, 0, SWT.LEFT);
fd_passField.right = new FormAttachment(100, -148);
passField.setLayoutData(fd_passField);
login = new Label(mainShell, SWT.NONE);
fd_passTitle.bottom = new FormAttachment(login, -43);
login.setAlignment(SWT.CENTER);
login.setFont(new Font(Display.getDefault(),"DJB CHALK IT UP", 20, SWT.NONE));
login.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
login.setText("Login");
FormData fd_login = new FormData();
fd_login.right = new FormAttachment(usrTitle, 0, SWT.RIGHT);
fd_login.bottom = new FormAttachment(100, -27);
fd_login.top = new FormAttachment(100, -68);
fd_login.left = new FormAttachment(0, 202);
login.setLayoutData(fd_login);
login.addMouseTrackListener(new MouseTrackAdapter() {
@Override
public void mouseEnter(MouseEvent arg0) {
login.setForeground(SWTResourceManager.getColor(SWT.COLOR_DARK_GRAY));
}
@Override
public void mouseExit(MouseEvent arg0) {
login.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
}
});
register = new Label(mainShell, SWT.NONE);
register.addMouseListener(new MouseAdapter() {
@Override
public void mouseDown(MouseEvent arg0) {
createRegisterLayout(); //change of layout
mainShell.layout(true, true);
mainShell.redraw();
mainShell.update();
}
});
register.setAlignment(SWT.CENTER);
register.setFont(new Font(Display.getDefault(),"DJB CHALK IT UP", 20, SWT.NONE));
register.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
register.setText("Register");
FormData fd_register = new FormData();
fd_register.top = new FormAttachment(login, 0, SWT.TOP);
fd_register.left = new FormAttachment(usrField, 0, SWT.LEFT);
fd_register.right = new FormAttachment(100, -225);
register.setLayoutData(fd_register);
register.addMouseTrackListener(new MouseTrackAdapter() {
@Override
public void mouseEnter(MouseEvent arg0) {
register.setForeground(SWTResourceManager.getColor(SWT.COLOR_DARK_GRAY));
}
@Override
public void mouseExit(MouseEvent arg0) {
register.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
}
});
}
/**
* Creates the layout of the register page
*/
private void createRegisterLayout(){
mainShell = new Shell(display,SWT.CLOSE | SWT.TITLE | SWT.MIN);
mainShell.setSize(685, 481);
mainShell.setText("Location Hangman");
mainShell.setLayout(new FormLayout());
Image image = new Image(display, System.getProperty("user.dir")+"/res/back.jpg");
mainShell.setBackgroundImage(image);
mainShell.setBackgroundMode(SWT.INHERIT_FORCE);
Label gameTitle = new Label(mainShell, SWT.NONE);
gameTitle.setFont(new Font(Display.getDefault(),"DJB CHALK IT UP", 40, SWT.NONE));
gameTitle.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
gameTitle.setAlignment(SWT.CENTER);
gameTitle.setText("Register");
FormData fd_gameTitle = new FormData();
fd_gameTitle.top = new FormAttachment(0, 94);
fd_gameTitle.left = new FormAttachment(0, 10);
fd_gameTitle.right = new FormAttachment(100, -10);
fd_gameTitle.bottom = new FormAttachment(0, 163);
gameTitle.setLayoutData(fd_gameTitle);
Label usrTitle = new Label(mainShell, SWT.NONE);
usrTitle.setFont(new Font(Display.getDefault(),"DJB CHALK IT UP", 20, SWT.NONE));
usrTitle.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
usrTitle.setAlignment(SWT.RIGHT);
FormData fd_usrTitle = new FormData();
fd_usrTitle.top = new FormAttachment(gameTitle, 81);
fd_usrTitle.left = new FormAttachment(0, 10);
usrTitle.setLayoutData(fd_usrTitle);
usrTitle.setText("Enter Username:");
usrField = new Text(mainShell, SWT.NONE);
fd_usrTitle.right = new FormAttachment(usrField, -6);
usrField.setFont(new Font(Display.getDefault(),"DJB CHALK IT UP", 20, SWT.NONE));
usrField.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
FormData fd_usrField = new FormData();
fd_usrField.left = new FormAttachment(0, 331);
fd_usrField.right = new FormAttachment(100, -148);
fd_usrField.top = new FormAttachment(gameTitle, 81);
usrField.setLayoutData(fd_usrField);
passTitle = new Label(mainShell, SWT.NONE);
passTitle.setFont(new Font(Display.getDefault(),"DJB CHALK IT UP", 20, SWT.NONE));
passTitle.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
passTitle.setAlignment(SWT.RIGHT);
FormData fd_passTitle = new FormData();
fd_passTitle.top = new FormAttachment(usrTitle, 22);
fd_passTitle.right = new FormAttachment(usrTitle, 0, SWT.RIGHT);
fd_passTitle.left = new FormAttachment(0, 10);
passTitle.setLayoutData(fd_passTitle);
passTitle.setText("Enter Password:");
passField = new Text(mainShell, SWT.PASSWORD | SWT.NONE);
passField.setFont(new Font(Display.getDefault(),"DJB CHALK IT UP", 20, SWT.NONE));
passField.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
FormData fd_passField = new FormData();
fd_passField.top = new FormAttachment(passTitle, 0, SWT.TOP);
fd_passField.left = new FormAttachment(usrField, 0, SWT.LEFT);
fd_passField.right = new FormAttachment(100, -148);
passField.setLayoutData(fd_passField);
register = new Label(mainShell, SWT.NONE);
register.setAlignment(SWT.CENTER);
register.setFont(new Font(Display.getDefault(),"DJB CHALK IT UP", 20, SWT.NONE));
register.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
register.setText("OK");
FormData fd_register = new FormData();
fd_register.bottom = new FormAttachment(100, -40);
fd_register.left = new FormAttachment(0, 276);
fd_register.right = new FormAttachment(100, -280);
register.setLayoutData(fd_register);
register.addMouseTrackListener(new MouseTrackAdapter() {
@Override
public void mouseEnter(MouseEvent arg0) {
register.setForeground(SWTResourceManager.getColor(SWT.COLOR_DARK_GRAY));
}
@Override
public void mouseExit(MouseEvent arg0) {
register.setForeground(SWTResourceManager.getColor(SWT.COLOR_WHITE));
}
});
}
预期的行为是什么？会发生什么呢？你试过什么了？ – Baz
你可以看到我到目前为止尝试过的:)，我几乎尝试了布局/重绘/更新的各种组合。我甚至试图把它们放在一个线程中，它仍然没有工作。有趣的是，当我使用mainShell.open（）时，一个新的更新的shell已打开，但我希望更新将在同一个shell中执行 – eli
_“我尝试了几个解决方案，但没有人为我工作”_哪种解决方案？ – Baz