com.ibm.research.tours.fx.wizards.ResetFontPreferenceWizardPage.java Source code

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Here is the source code for com.ibm.research.tours.fx.wizards.ResetFontPreferenceWizardPage.java

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/*******************************************************************************
 * Copyright (c) 2006-2007 IBM Corporation and others.
 * All rights reserved. This program and the accompanying materials
 * are made available under the terms of the Eclipse Public License v1.0
 * which accompanies this distribution, and is available at
 * http://www.eclipse.org/legal/epl-v10.html
 *
 * Contributors:
 *     IBM Corporation - initial API and implementation
 *     IBM Research
 *******************************************************************************/
package com.ibm.research.tours.fx.wizards;

import org.eclipse.jface.viewers.IContentProvider;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.ITableLabelProvider;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.ViewerSorter;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Label;
import org.eclipse.swt.widgets.Table;
import org.eclipse.swt.widgets.TableColumn;
import org.eclipse.ui.internal.WorkbenchPlugin;
import org.eclipse.ui.internal.themes.FontDefinition;
import org.eclipse.ui.internal.themes.IThemeRegistry;

import com.ibm.research.tours.adapters.StructuredContentProviderAdapter;
import com.ibm.research.tours.adapters.TableLabelProviderAdapter;
import com.ibm.research.tours.controls.FilteredTable;
import com.ibm.research.tours.controls.NQueryTablePatternFilter;

public class ResetFontPreferenceWizardPage extends WizardPage {

    private String id, fLabel;
    private FilteredTable fFontPrefRegistry;

    protected ResetFontPreferenceWizardPage(String pageName) {
        super(pageName);
        setTitle("Font preferences");
        setDescription("Select the font preferences for the element.");
    }

    public void createControl(Composite parent) {
        Composite composite = new Composite(parent, SWT.NONE);
        GridLayout layout = new GridLayout();
        layout.verticalSpacing = 6;
        composite.setLayout(layout);

        Label label = new Label(composite, SWT.WRAP);
        label.setText("Configure font for this element");
        GridData data = new GridData(GridData.GRAB_HORIZONTAL | GridData.GRAB_VERTICAL
                | GridData.HORIZONTAL_ALIGN_FILL | GridData.VERTICAL_ALIGN_CENTER);
        label.setData(data);

        ITableLabelProvider labelProvider = new TableLabelProviderAdapter() {
            public String getColumnText(Object element, int columnIndex) {
                if (element instanceof FontDefinition) {
                    FontDefinition defn = (FontDefinition) element;
                    if (columnIndex == 0)
                        return defn.getName();
                    else if (columnIndex == 1)
                        return defn.getDescription();
                }
                return null;
            }
        };

        IContentProvider contentProvider = new StructuredContentProviderAdapter() {
            public Object[] getElements(Object inputElement) {
                IThemeRegistry registry = WorkbenchPlugin.getDefault().getThemeRegistry();
                FontDefinition[] fontDefinitions = registry.getFonts();
                return fontDefinitions;
            }
        };

        fFontPrefRegistry = new FilteredTable(composite, SWT.SINGLE | SWT.H_SCROLL | SWT.V_SCROLL,
                new NQueryTablePatternFilter());
        fFontPrefRegistry.getViewer().setContentProvider(contentProvider);
        fFontPrefRegistry.getViewer().setSorter(new ViewerSorter());
        fFontPrefRegistry.getViewer().setLabelProvider(labelProvider);
        fFontPrefRegistry.getViewer().setInput(new Object());
        fFontPrefRegistry.getViewer().addSelectionChangedListener(new ISelectionChangedListener() {
            public void selectionChanged(SelectionChangedEvent event) {
                IStructuredSelection selected = (IStructuredSelection) event.getSelection();
                if (selected.isEmpty()) {
                    ResetFontPreferenceWizardPage.this.setPageComplete(false);
                } else {
                    FontDefinition defn = (FontDefinition) selected.getFirstElement();
                    ResetFontPreferenceWizardPage.this.setId(defn.getId());
                    ResetFontPreferenceWizardPage.this.setLabel(defn.getName());
                    ResetFontPreferenceWizardPage.this.setPageComplete(id != null);
                }
            }
        });

        Table table = fFontPrefRegistry.getViewer().getTable();
        table.setHeaderVisible(false);
        table.setLinesVisible(true);

        TableColumn nameColumn = new TableColumn(table, SWT.LEFT, 0);
        nameColumn.setWidth(240);

        TableColumn descColumn = new TableColumn(table, SWT.LEFT, 1);
        descColumn.setWidth(640);

        GridData registryListData = new GridData(GridData.FILL_HORIZONTAL);
        registryListData.heightHint = 120;
        registryListData.horizontalSpan = 2;
        fFontPrefRegistry.setLayoutData(registryListData);

        if (id != null) {
            IThemeRegistry registry = WorkbenchPlugin.getDefault().getThemeRegistry();
            FontDefinition[] fontDefinitions = registry.getFonts();
            for (FontDefinition defn : fontDefinitions) {
                if (id.equals(defn.getId())) {
                    IStructuredSelection selection = new StructuredSelection(defn);
                    fFontPrefRegistry.getViewer().setSelection(selection, true);
                    break;
                }
            }
        }

        setPageComplete(id != null);

        setControl(composite);
    }

    @Override
    public void dispose() {
        super.dispose();
    }

    public void setId(String id) {
        this.id = id;
    }

    public String getId() {
        return id;
    }

    public void setLabel(String label) {
        fLabel = label;
    }

    public String getLabel() {
        return fLabel;
    }

    public void init(String preferenceId, String label) {
        id = preferenceId;
        fLabel = label;
    }
}