net.sf.freeqda.view.projectview.wizard.SelectParentCategoryWizardPage.java Source code

Introduction

Here is the source code for net.sf.freeqda.view.projectview.wizard.SelectParentCategoryWizardPage.java

Source

/*******************************************************************************
 * FreeQDA,  a software for professional qualitative research data 
 * analysis, such as interviews, manuscripts, journal articles, memos
 * and field notes.
 *
 * Copyright (C) 2011 Dirk Kitscha, Jrg groe Schlarmann
 *
 * This program is free software: you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation, either version 3 of the License, or
 * (at your option) any later version.
 *
 * This program is distributed in the hope that it will be useful,
 * but WITHOUT ANY WARRANTY; without even the implied warranty of
 * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
 * GNU General Public License for more details.
 *
 * You should have received a copy of the GNU General Public License
 * along with this program.  If not, see <http://www.gnu.org/licenses/>.
 *******************************************************************************/
package net.sf.freeqda.view.projectview.wizard;

import net.sf.freeqda.common.GenericTreeNode;
import net.sf.freeqda.common.projectmanager.ProjectManager;
import net.sf.freeqda.common.projectmanager.TextCategoryNode;
import net.sf.freeqda.view.projectview.TextTreeContentProvider;
import net.sf.freeqda.view.projectview.TextTreeLabelProvider;

import org.eclipse.jface.viewers.DecoratingLabelProvider;
import org.eclipse.jface.viewers.ILabelDecorator;
import org.eclipse.jface.viewers.ISelection;
import org.eclipse.jface.viewers.ISelectionChangedListener;
import org.eclipse.jface.viewers.IStructuredSelection;
import org.eclipse.jface.viewers.SelectionChangedEvent;
import org.eclipse.jface.viewers.StructuredSelection;
import org.eclipse.jface.viewers.TreeViewer;
import org.eclipse.jface.wizard.WizardPage;
import org.eclipse.swt.SWT;
import org.eclipse.swt.graphics.Color;
import org.eclipse.swt.layout.GridData;
import org.eclipse.swt.layout.GridLayout;
import org.eclipse.swt.widgets.Composite;
import org.eclipse.swt.widgets.Tree;
import org.eclipse.ui.PlatformUI;

public class SelectParentCategoryWizardPage extends WizardPage {

    private Composite container;
    private TreeViewer treeViewerCategory;

    private TextCategoryNode parentCategory;
    private boolean isCreateMode;

    private SelectParentCategoryWizardPage(String pageName) {
        super(pageName);
    }

    public SelectParentCategoryWizardPage(String pageName, String title, String description,
            GenericTreeNode<TextCategoryNode> parentTag, boolean isCreateMode) {
        this(pageName);
        setTitle(title);
        setDescription(description);
        if (parentTag == null)
            this.parentCategory = ProjectManager.getInstance().getRootCategory();
        else
            this.parentCategory = (TextCategoryNode) parentTag;
        this.isCreateMode = isCreateMode;
    }

    @Override
    public void createControl(Composite parent) {

        container = new Composite(parent, SWT.NONE);

        GridLayout thisLayout = new GridLayout();
        thisLayout.makeColumnsEqualWidth = true;
        container.setLayout(thisLayout);
        {
            GridData treeViewerCategoryLData = new GridData();
            treeViewerCategoryLData.grabExcessHorizontalSpace = true;
            treeViewerCategoryLData.grabExcessVerticalSpace = true;
            treeViewerCategoryLData.horizontalAlignment = GridData.FILL;
            treeViewerCategoryLData.verticalAlignment = GridData.FILL;
            treeViewerCategory = new TreeViewer(container, SWT.BORDER);
            treeViewerCategory.getControl().setLayoutData(treeViewerCategoryLData);
            treeViewerCategory.addSelectionChangedListener(new ISelectionChangedListener() {

                @Override
                public void selectionChanged(SelectionChangedEvent event) {

                    ISelection selection = event.getSelection();
                    if (selection != null && selection instanceof IStructuredSelection) {
                        Object obj = ((IStructuredSelection) selection).getFirstElement();

                        if ((obj != null) && (obj instanceof TextCategoryNode)) {
                            parentCategory = (TextCategoryNode) obj;
                            setPageComplete(true);
                        }
                    }
                }
            });

        }

        ILabelDecorator documentDecorator = PlatformUI.getWorkbench().getDecoratorManager().getLabelDecorator();
        treeViewerCategory.setContentProvider(new TextTreeContentProvider(TextTreeContentProvider.SHOW_CATEGORY));
        treeViewerCategory
                .setLabelProvider(new DecoratingLabelProvider(new TextTreeLabelProvider(), documentDecorator));

        Tree tree = treeViewerCategory.getTree();
        tree.setLinesVisible(true);
        tree.setBackground(new Color(container.getDisplay(), 255, 255, 255));

        treeViewerCategory.setInput(ProjectManager.getInstance());
        treeViewerCategory.expandAll();
        treeViewerCategory.setSelection(new StructuredSelection(parentCategory));
        //FIXME implement a proper "parent category editing"
        treeViewerCategory.getControl().setEnabled(isCreateMode);

        container.layout();

        setControl(container);
        setPageComplete(true);
    }

    public TextCategoryNode getParentCategory() {
        return parentCategory;
        //      ISelection selection = treeViewerCategory.getSelection();
        //      if (selection != null && selection instanceof IStructuredSelection) {
        //         Object obj = ((IStructuredSelection) selection).getFirstElement();
        //
        //         if ((obj != null) && (obj instanceof TextCategoryNode)) {
        //            return (TextCategoryNode) obj;
        //         }
        //      }
        //      return ProjectManager.getInstance().getRootCategory(); 
    }
}