我不知道为什么我的代码会导致底部JTextArea超出其所在窗口的边界。
我使用WindowBuilder创建了GUI，并尝试了多种不同的方法来限制大小，但是我似乎无法弄清为什么它会超出我在WindowBuilder的“设计”视图中设置的大小。
这是我的代码：（这是我第一次使用此论坛，请原谅发布错误）
public class Reporter extends JFrame {
private static final long serialVersionUID = 1L;
class MyTableModel extends AbstractTableModel {
private static final long serialVersionUID = 1L;
private String[] columnNames;
private Object[][] data;
public MyTableModel(String[] columnNames) {
this.columnNames=columnNames;
this.data=new Object[0][columnNames.length];
}
public int getColumnCount() {
return columnNames.length;
}
public int getRowCount() {
return data.length;
}
public String getColumnName(int col) {
return columnNames[col];
}
public Object getValueAt(int row, int col) {
return data[row][col];
}
public Class<? extends Object> getColumnClass(int c) {
return getValueAt(0, c).getClass();
}
public void setValueAt(Object value, int row, int col) {
data[row][col] = value;
fireTableCellUpdated(row, col);
}
public void addRow(Object[] objs) {
Object[][] newData = new Object[this.getRowCount()+1][this.getColumnCount()];
for (int row=0; row<this.getRowCount(); row++) {
for (int col=0; col<this.getColumnCount(); col++) {
newData[row][col]=this.data[row][col];
}
}
for (int col=0; col<this.getColumnCount(); col++) {
newData[newData.length-1][col]=objs[col];
}
this.data=newData;
fireTableDataChanged();
}
public void setRow(int rowIndex, Object[] objs) {
for (int col=0; col<this.getColumnCount(); col++) {
this.data[rowIndex][col]=objs[col];
}
fireTableRowsUpdated(rowIndex, rowIndex);
}
}
private JTabbedPane bugTabPane;
private JScrollPane tableScrollPane;
private ArrayList<JTextArea> bugOuts;
private JScrollPane graphScrollPane;
private JTable table;
private JScrollPane announcerScrollPane;
private JTextArea announcerTextArea;
private GraphBox graphPane;
public Reporter() {
setBounds(100, 100, 903, 751);
setDefaultCloseOperation(JFrame.DO_NOTHING_ON_CLOSE);
getContentPane().setLayout(new MigLayout("", "[grow]", "[200px:200px][200px:200px:200px][200px:200px:200px]"));
this.graphScrollPane = new JScrollPane();
this.graphScrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_ALWAYS);
this.graphScrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_NEVER);
getContentPane().add(this.graphScrollPane, "cell 0 0,grow");
this.graphPane = new GraphBox();
this.graphScrollPane.add(graphPane);
Attribute[] attributeNames=Attribute.values();
String[] otherColumnNames={"Name","Creator","Last Act"};
String[] columnNames = new String[attributeNames.length+otherColumnNames.length];
for (int i=0; i<otherColumnNames.length; i++) {
columnNames[i]=otherColumnNames[i];
}
for (int i=0; i<attributeNames.length; i++) {
columnNames[otherColumnNames.length+i]=attributeNames[i].toString();
}
this.tableScrollPane = new JScrollPane();
getContentPane().add(this.tableScrollPane, "cell 0 1,grow");
this.table = new JTable(new MyTableModel(columnNames));
this.tableScrollPane.setViewportView(this.table);
this.bugTabPane = new JTabbedPane(JTabbedPane.TOP);
getContentPane().add(this.bugTabPane, "cell 0 2,grow");
this.bugTabPane.setTabLayoutPolicy(JTabbedPane.SCROLL_TAB_LAYOUT);
this.announcerScrollPane = new JScrollPane();
this.announcerScrollPane.setVerticalScrollBarPolicy(ScrollPaneConstants.VERTICAL_SCROLLBAR_ALWAYS);
this.announcerScrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
this.bugTabPane.addTab("Announcer", null, this.announcerScrollPane, null);
this.announcerTextArea = new JTextArea(1, 40);
this.announcerTextArea.setMaximumSize(new Dimension(2147483647, 200));
this.announcerTextArea.setEnabled(false);
this.announcerScrollPane.setViewportView(this.announcerTextArea);
this.bugOuts = new ArrayList<JTextArea>();
pack();
}
public TableModel getTableModel() {
return this.table.getModel();
}
public void addTableRow(BugStepRecord bugStepRecord) {
Object[] rowObjs = new Object[this.table.getColumnCount()];
rowObjs[0] = bugStepRecord.getName();
rowObjs[1] = bugStepRecord.getCreator();
rowObjs[2] = bugStepRecord.getAct();
for (int i=0; i<bugStepRecord.getAttributeVals().length; i++) {
rowObjs[3+i] = bugStepRecord.getAttributeVals()[i];
}
MyTableModel myTableModel = (MyTableModel)this.table.getModel();
myTableModel.addRow(rowObjs);
}
public void updateTableRow(int rowIndex, BugStepRecord bugStepRecord) {
Object[] rowObjs = new Object[this.table.getColumnCount()];
rowObjs[0] = bugStepRecord.getName();
rowObjs[1] = bugStepRecord.getCreator();
rowObjs[2] = bugStepRecord.getAct();
for (int i=0; i<bugStepRecord.getAttributeVals().length; i++) {
rowObjs[3+i] = bugStepRecord.getAttributeVals()[i];
}
MyTableModel myTableModel = (MyTableModel)this.table.getModel();
myTableModel.setRow(rowIndex, rowObjs);
}
public JTextArea addBugTab(String name, Icon icon) {
final JTextArea textArea = new JTextArea(1, 40);
textArea.setEditable(false);
JScrollPane bugScrollPane = new JScrollPane();
bugScrollPane.setHorizontalScrollBarPolicy(ScrollPaneConstants.HORIZONTAL_SCROLLBAR_NEVER);
bugScrollPane.setViewportView(textArea);
this.bugOuts.add(textArea);
this.bugTabPane.addTab(name, icon, bugScrollPane, null);
return textArea;
}
}
参考方案
我相信您希望底部的JTabbedPane适应您的应用程序窗口的高度。在这种情况下-行：
new MigLayout("", "[grow]", "[200px:200px][200px:200px:200px][200px:200px:200px]"));
是你的问题。您将第三行的最小高度设置为200px（如果您希望该行增长-也不发生-最大高度200px）
从MigLayout cheat sheet：
The format is "min:preferred:max", however there are shorter versions since for instance it is seldom needed to specify the maximum size.
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