java 设置 SWT 表格列的宽度
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Set width of SWT Table Column
提问by boreas
I'm adding column one by one to my swt table. with
我正在将列一一添加到我的 swt 表中。和
int totalwidth=0;
for(String s:phoneErrs){
TableColumn tblclmnError = new TableColumn(tablephone, SWT.CENTER);
tblclmnError.setText(s);
tblclmnError.pack();
totalwidth+=tblclmnError.getWidth();
}
and after this I want to add a last column, that should fill the rest of the space in table header. Now that I have the total width of the added columns already, I should be able to calculate the width of my last column and specify it right? but how? I tried
在此之后我想添加最后一列，它应该填充表头中的其余空间。现在我已经有了添加列的总宽度，我应该能够计算最后一列的宽度并指定它对吗？但是怎么样？我试过
TableColumn tblclmnComment = new TableColumn(tablephone, SWT.CENTER);
tblclmnComment.setWidth(tablephone.getSize().x-totalwidth);
tblclmnComment.setText("Comment");
but it's not working. the getSize()return 0.
但它不起作用。的getSize()回报0。
回答by sambi reddy
You can achieve this by adding listener on SWT.Resizeevent type.
您可以通过在SWT.Resize事件类型上添加侦听器来实现此目的。
public static void main(String[] args) {
final Display display = new Display();
final Shell shell = new Shell(display);
shell.setLayout(new GridLayout(1, true));
TableViewer viewer1 = getViewer(shell);
List<String> rows = new ArrayList<String>();
rows.add("Row 1");
rows.add("Row 2");
viewer1.setInput(rows);
shell.pack();
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) {
display.sleep();
}
}
display.dispose();
}
private static TableViewer getViewer(final Shell shell) {
TableViewer viewer = new TableViewer(shell, SWT.FULL_SELECTION
| SWT.H_SCROLL | SWT.V_SCROLL | SWT.NONE);
viewer.getTable().addListener(SWT.Resize, new Listener() {
@Override
public void handleEvent(Event event) {
Table table = (Table)event.widget;
int columnCount = table.getColumnCount();
if(columnCount == 0)
return;
Rectangle area = table.getClientArea();
int totalAreaWdith = area.width;
int lineWidth = table.getGridLineWidth();
int totalGridLineWidth = (columnCount-1)*lineWidth;
int totalColumnWidth = 0;
for(TableColumn column: table.getColumns())
{
totalColumnWidth = totalColumnWidth+column.getWidth();
}
int diff = totalAreaWdith-(totalColumnWidth+totalGridLineWidth);
TableColumn lastCol = table.getColumns()[columnCount-1];
//check diff is valid or not. setting negetive width doesnt make sense.
lastCol.setWidth(diff+lastCol.getWidth());
}
});
viewer.setContentProvider(ArrayContentProvider.getInstance());
viewer.getTable().setLayoutData(
new GridData(SWT.FILL, SWT.FILL, true, true));
TableViewerColumn col = new TableViewerColumn(viewer, SWT.NONE);
col.getColumn().setWidth(100);
col.getColumn().setText("Text Column");
col.setLabelProvider(new ColumnLabelProvider() {
@Override
public void update(ViewerCell cell) {
cell.setText((String) cell.getElement());
}
});
col = new TableViewerColumn(viewer, SWT.NONE);
col.getColumn().setWidth(100);
col.getColumn().setText("Second Text Column");
col.setLabelProvider(new ColumnLabelProvider() {
@Override
public void update(ViewerCell cell) {
cell.setText((String) cell.getElement());
}
});
viewer.getTable().setHeaderVisible(true);
return viewer;
}
