java swt griddata_SWT的GridData一些参数的图示
java swt griddata_SWT的GridData一些参数的图示
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。
发布者：全栈程序员栈长，转载请注明出处：https://javaforall.cn/141143.html原文链接：https://javaforall.cn