jface tableviewer tooltip text cut

Question

I am using the jface tableviewer in an eclipse rcp application to display some values.

Therefore I have written the following snipped ...

    tableviewer = new TableViewer(container, SWT.FULL_SELECTION | SWT.BORDER | SWT.SINGLE);
    tableviewer.setContentProvider(new ArrayContentProvider());

    ColumnViewerToolTipSupport.enableFor(tableviewer, ToolTip.RECREATE);

    final Table table = tableviewer.getTable();
    table.setHeaderVisible(true);
    table.setLinesVisible(true);

    TableViewerColumn column = new TableViewerColumn(tableviewer, SWT.NONE);
    column.getColumn().setText("col1");
    column.getColumn().setResizable(true);
    column.setLabelProvider(new ConfigLabelProvider("col1"));

And here here ConfigLabelProvider definition

private class ConfigLabelProvider extends StyledCellLabelProvider {

    private String property;

    public ConfigLabelProvider(String property) {
        this.property = property;
    }

    @Override
    public void update(ViewerCell cell) {

        GenericConfigInterfaceEntity config = (GenericConfigInterfaceEntity) cell.getElement();

        switch (property) {
        case "col1":
            cell.setText(AppHelper.preventNull("col1Text col1Text col1Text col1Text col1Text"));
            break;
        case ...
        }

        super.update(cell);

    }

}

Now my problem is if the column is too small, the default tooltip is displayed trying to show the full cell text value.

BUT I get a tooltip box that is large enough for the whole text but the text isn't shown outside the cell rectange.

If I extend the ConfigLabelProvider from CellLabelProvider the Tooltip is showing up like expected ...

But I need the paint method of the StyledCellLabelProvider.

Any ideas?

---

Edit 1

I have written a small Java Example Project using SWT and JFACE, because my problems still remain.

My goal is to have an table with a cell-Background without the mousehover (because its looking ugly together) and a custom tooltip.

Here's my TestTable implementation

package main;

import java.util.ArrayList;
import java.util.List;

import model.TestModel;

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;

    protected 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();

    }

}

And here are some faulty pictures

Here the native TableViewer Tooltip and my custom ToolTip is shown, also the row gets selected (COLORS_ON_SELECTION should prevent that)

Here no tooltip is shown on the second column

And here no tooltip is shown and as you can see the first cell isn't filled up

If I add SWT.FULL_SELECTION the tooltip on column 2 appears but the other issues remain.

I think it's a kind of buggy that Tooltip Support or I am doing it totally wrong.

Answer 1

This solved my problem

https://stackoverflow.com/a/28991593/1822033

The underlaying second tip was shown because the column was too narrow. Setting tableviewer.getTavle().setTooltipText(""); stopped showing the native tip.

Setting it to null displays it anyway!