大家好,又见面了,我是你们的朋友全栈君。
1. 参数;verticalSpan
GridData gridData=new GridData();
gridData.verticalSpan=100;
final Text nameText=new Text(shell, SWT.BORDER);
nameText.setLayoutData(gridData);
可以发现,verticalSpan代表的是控件占据的行数。
若代码如下:
public classLBMShow{public static voidmain(String args[]){final Display display=Display.getDefault();final Shell shell=newShell(display);
shell.setText(“Hello”);
GridLayout gridLayout=new GridLayout(2, true);
GridData gridData=newGridData();
gridData.verticalSpan=100;
shell.setLayout(gridLayout);final Label nameLabel=newLabel(shell, SWT.BORDER);
nameLabel.setText(“name: “);final Text nameText=newText(shell, SWT.BORDER);
nameText.setText(“1”);
nameLabel.setLayoutData(gridData);
nameText.setLayoutData(gridData);final Label passwdLabel=newLabel(shell, SWT.BORDER);
passwdLabel.setText(“password: “);final Text passwdText=newText(shell, SWT.BORDER);
passwdText.setText(“2”);final Button button = newButton(shell, SWT.NONE);
button.setText(“登录”);//button.setBounds(32, 28, 58, 22);
shell.open();//shell.layout();//消息循环
while (!shell.isDisposed()) {if (!display.readAndDispatch())
display.sleep();
}
}
}
则效果如下:
2.参数: horizontalSpan
horizontalSpan代表的是:一个控件所占列数,默认一行包含1个位置,所以若将其设置为2时,这个控件会独占一行。
代码:
public classLBMShow{public static voidmain(String args[]){final Display display=Display.getDefault();final Shell shell=newShell(display);
shell.setText(“Hello”);
GridLayout gridLayout=new GridLayout(2, true);
GridData gridData=newGridData();
gridData.horizontalSpan=2;
shell.setLayout(gridLayout);final Label nameLabel=newLabel(shell, SWT.BORDER);
nameLabel.setText(“name: “);final Text nameText=newText(shell, SWT.BORDER);
nameText.setText(“1”);
nameLabel.setLayoutData(gridData);
nameText.setLayoutData(gridData);final Label passwdLabel=newLabel(shell, SWT.BORDER);
passwdLabel.setText(“password: “);final Text passwdText=newText(shell, SWT.BORDER);
passwdText.setText(“2”);final Button button = newButton(shell, SWT.NONE);
button.setText(“登录”);//button.setBounds(32, 28, 58, 22);
shell.open();//shell.layout();//消息循环
while (!shell.isDisposed()) {if (!display.readAndDispatch())
display.sleep();
}
}
}
效果;
3.参数: grabExcessHorizontalSpace
这个参数只有true或false的选择,默认为false。他表示是否填充剩余的水平空间。
代码:
public classLBMShow{public static voidmain(String args[]){final Display display=Display.getDefault();final Shell shell=newShell(display);
shell.setText(“Hello”);
GridLayout gridLayout=new GridLayout(2, true);
GridData gridData=newGridData();
gridData.grabExcessHorizontalSpace=true;
shell.setLayout(gridLayout);final Label nameLabel=newLabel(shell, SWT.BORDER);
nameLabel.setText(“name: “);final Text nameText=newText(shell, SWT.BORDER);
nameText.setText(“1”);
nameLabel.setLayoutData(gridData);
nameText.setLayoutData(gridData);final Label passwdLabel=newLabel(shell, SWT.BORDER);
passwdLabel.setText(“password: “);final Text passwdText=newText(shell, SWT.BORDER);
passwdText.setText(“2”);final Button button = newButton(shell, SWT.NONE);
button.setText(“登录”);//button.setBounds(32, 28, 58, 22);
shell.open();//shell.layout();//消息循环
while (!shell.isDisposed()) {if (!display.readAndDispatch())
display.sleep();
}
}
}
效果:
4. 参数: grabExcessVerticalSpace
此参数表示控件是否填充垂直的剩余空间。
代码:
public classLBMShow{public static voidmain(String args[]){final Display display=Display.getDefault();final Shell shell=newShell(display);
shell.setText(“Hello”);
GridLayout gridLayout=new GridLayout(2, true);
GridData gridData=newGridData();
gridData.grabExcessVerticalSpace=true;
shell.setLayout(gridLayout);final Label nameLabel=newLabel(shell, SWT.BORDER);
nameLabel.setText(“name: “);final Text nameText=newText(shell, SWT.BORDER);
nameText.setText(“1”);
nameLabel.setLayoutData(gridData);
nameText.setLayoutData(gridData);final Label passwdLabel=newLabel(shell, SWT.BORDER);
passwdLabel.setText(“password: “);final Text passwdText=newText(shell, SWT.BORDER);
passwdText.setText(“2”);final Button button = newButton(shell, SWT.NONE);
button.setText(“登录”);//button.setBounds(32, 28, 58, 22);
shell.open();//shell.layout();//消息循环
while (!shell.isDisposed()) {if (!display.readAndDispatch())
display.sleep();
}
}
}
效果:
5.参数: widthHint
这个参数的意思是控件的最小宽度,可以设定控件的宽度
代码;
public classLBMShow{public static voidmain(String args[]){final Display display=Display.getDefault();final Shell shell=newShell(display);
shell.setText(“Hello”);
GridLayout gridLayout=new GridLayout(2, true);
GridData gridData=newGridData();
gridData.widthHint=500;
shell.setLayout(gridLayout);final Label nameLabel=newLabel(shell, SWT.BORDER);
nameLabel.setText(“name: “);final Text nameText=newText(shell, SWT.BORDER);
nameText.setText(“1”);
nameLabel.setLayoutData(gridData);
nameText.setLayoutData(gridData);final Label passwdLabel=newLabel(shell, SWT.BORDER);
passwdLabel.setText(“password: “);final Text passwdText=newText(shell, SWT.BORDER);
passwdText.setText(“2”);final Button button = newButton(shell, SWT.NONE);
button.setText(“登录”);//button.setBounds(32, 28, 58, 22);
shell.open();//shell.layout();//消息循环
while (!shell.isDisposed()) {if (!display.readAndDispatch())
display.sleep();
}
}
}
效果:
6.参数: heightHint
这个参数表示控件的最小高度。
代码:
public classLBMShow{public static voidmain(String args[]){final Display display=Display.getDefault();final Shell shell=newShell(display);
shell.setText(“Hello”);
GridLayout gridLayout=new GridLayout(2, true);
GridData gridData=newGridData();
gridData.heightHint=500;
shell.setLayout(gridLayout);final Label nameLabel=newLabel(shell, SWT.BORDER);
nameLabel.setText(“name: “);final Text nameText=newText(shell, SWT.BORDER);
nameText.setText(“1”);
nameLabel.setLayoutData(gridData);
nameText.setLayoutData(gridData);final Label passwdLabel=newLabel(shell, SWT.BORDER);
passwdLabel.setText(“password: “);final Text passwdText=newText(shell, SWT.BORDER);
passwdText.setText(“2”);final Button button = newButton(shell, SWT.NONE);
button.setText(“登录”);//button.setBounds(32, 28, 58, 22);
shell.open();//shell.layout();//消息循环
while (!shell.isDisposed()) {if (!display.readAndDispatch())
display.sleep();
}
}
}
效果:
7.参数;horizontalAlignment和verticalAlignment还没弄出来。
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