我在学习java swt时正在构建一个示例表。有人可以帮助我,为什么这段代码不起作用。运行代码时没有任何反应。
我想我没有正确地写出主要方法。需要改变什么。
如果你有一些链接,我可以学习Java swt非常好,请提供相同的。我找不到swt的帮助
import java.util.ArrayList;
import java.util.List;
import org.eclipse.jface.dialogs.Dialog;
import org.eclipse.jface.viewers.ArrayContentProvider;
import org.eclipse.jface.viewers.ColumnViewer;
import org.eclipse.jface.viewers.ColumnViewerToolTipSupport;
import org.eclipse.jface.viewers.StyledCellLabelProvider;
import org.eclipse.jface.viewers.TableViewer;
import org.eclipse.jface.viewers.TableViewerColumn;
import org.eclipse.jface.viewers.ViewerCell;
import org.eclipse.jface.viewers.ViewerColumn;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.FillLayout;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Control;
import org.eclipse.swt.widgets.Display;
import org.eclipse.swt.widgets.Shell;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
public class TestTable extends Dialog {
private TableViewer tableviewer;
private List<TestModel> entities;
private TestTable testTable;
public TestTable(Shell parentShell) {
super(parentShell);
}
@Override
public void create() {
super.create();
loadData();
}
@Override
protected Control createDialogArea(Composite parent) {
GridData dataLayout;
Composite area = (Composite) super.createDialogArea(parent);
dataLayout = new GridData(GridData.FILL_BOTH);
dataLayout.heightHint = 150;
dataLayout.widthHint = 500;
Composite wrapper = new Composite(area, SWT.NONE);
wrapper.setLayoutData(dataLayout);
wrapper.setLayout(new FillLayout());
tableviewer = new TableViewer(wrapper, SWT.BORDER | SWT.MULTI);
tableviewer.setContentProvider(new ArrayContentProvider());
ColumnViewerToolTipSupport.enableFor(tableviewer);
final Table table = tableviewer.getTable();
table.setLinesVisible(true);
table.setHeaderVisible(true);
createColumns(wrapper);
return area;
}
private void createColumns(Composite wrapper) {
TableViewerColumn firstnameColumn = new TableViewerColumn(tableviewer, SWT.NONE);
firstnameColumn.getColumn().setText("Vorname");
firstnameColumn.setLabelProvider(new StyledCellLabelProvider(StyledCellLabelProvider.COLORS_ON_SELECTION) {
@Override
public void initialize(ColumnViewer viewer, ViewerColumn column) {
super.initialize(viewer, column);
this.setOwnerDrawEnabled(false);
}
@Override
public void update(ViewerCell cell) {
TestModel model = (TestModel) cell.getElement();
cell.setText(model.getFirstName());
cell.setBackground(Display.getDefault().getSystemColor(SWT.COLOR_DARK_GREEN));
}
@Override
public String getToolTipText(Object element) {
TestModel model = (TestModel) element;
return "USE THIS AS TOOLTIP";
}
});
TableViewerColumn lastnameColumn = new TableViewerColumn(tableviewer, SWT.NONE);
lastnameColumn.getColumn().setText("Nachname");
lastnameColumn.setLabelProvider(new StyledCellLabelProvider(StyledCellLabelProvider.COLORS_ON_SELECTION) {
@Override
public void initialize(ColumnViewer viewer, ViewerColumn column) {
super.initialize(viewer, column);
this.setOwnerDrawEnabled(false);
}
@Override
public void update(ViewerCell cell) {
TestModel model = (TestModel) cell.getElement();
cell.setText(model.getLastName());
cell.setBackground(Display.getDefault().getSystemColor(SWT.COLOR_DARK_GREEN));
}
@Override
public String getToolTipText(Object element) {
TestModel model = (TestModel) element;
return "USE THIS AS TOOLTIP";
}
});
for (TableColumn c : tableviewer.getTable().getColumns()) {
c.pack();
}
}
private void loadData() {
entities = new ArrayList<TestModel>();
entities.add(new TestModel("___Firstname1___", "Lastname1", "Username1", "Kommentar"));
entities.add(new TestModel("___Firstname2___", "Lastname2", "Username2", "Kommentar"));
entities.add(new TestModel("___Firstname3___", "Lastname3", "Username3", "Kommentar"));
entities.add(new TestModel("___Firstname4___", "Lastname4", "Username4", "Kommentar"));
entities.add(new TestModel("___Firstname5___", "Lastname5", "Username5", "Kommentar"));
tableviewer.setInput(entities);
tableviewer.refresh();
}
public static void main(String[] args){
Shell shell = new Shell();
/*TestTable testTable = */new TestTable(shell);
}
}
答案 0 :(得分:2)
尝试:
public static void main(String[] args){
Shell shell = new Shell();
TestTable testTable = new TestTable(shell);
testTable.open();
}
Vogella通常有很好的教程:
http://www.vogella.com/tutorials/EclipseDialogs/article.html