/*******************************************************************************
 * Copyright (c) 2006 Tom Schindl 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:
 *     Tom Schindl - initial API and implementation
 *******************************************************************************/

module jface.snippets.viewers.Snippet054NativeControlsInViewers;

import dwtx.jface.viewers.CellLabelProvider;
import dwtx.jface.viewers.ColumnLabelProvider;
import dwtx.jface.viewers.IStructuredContentProvider;
import dwtx.jface.viewers.TableViewer;
import dwtx.jface.viewers.TableViewerColumn;
import dwtx.jface.viewers.Viewer;
import dwtx.jface.viewers.ViewerCell;
import dwt.DWT;
import dwt.custom.TableEditor;
import dwt.dwthelper.utils;
import dwt.events.DisposeEvent;
import dwt.events.DisposeListener;
import dwt.events.SelectionAdapter;
import dwt.events.SelectionEvent;
import dwt.events.SelectionListener;
import dwt.layout.FillLayout;
import dwt.layout.RowLayout;
import dwt.widgets.Button;
import dwt.widgets.Composite;
import dwt.widgets.Display;
import dwt.widgets.Shell;
import dwt.widgets.TableItem;

import tango.util.Convert;
import tango.util.collection.ArraySeq;

/**
 * Example how to place native controls into a viewer with the new JFace-API
 * because has the potential to eat up all your handles you should think about
 * alternate approaches e.g. takeing a screenshot of the control
 *
 * @author Tom Schindl <tom.schindl@bestsolution.at>
 *
 */
public class Snippet054NativeControlsInViewers {

    private class MyContentProvider: IStructuredContentProvider {

        /*
         * (non-Javadoc)
         *
         * @see org.eclipse.jface.viewers.IStructuredContentProvider#getElements(java.lang.Object)
         */
        public Object[] getElements(Object inputElement) {
            return (cast(ArraySeq!(MyModel))inputElement).toArray;
        }

        /*
         * (non-Javadoc)
         *
         * @see org.eclipse.jface.viewers.IContentProvider#dispose()
         */
        public void dispose() {

        }

        /*
         * (non-Javadoc)
         *
         * @see org.eclipse.jface.viewers.IContentProvider#inputChanged(org.eclipse.jface.viewers.Viewer,
         *      java.lang.Object, java.lang.Object)
         */
        public void inputChanged(Viewer viewer, Object oldInput, Object newInput) {

        }

    }

    public class MyModel {
        public int counter;

        public this(int counter) {
            this.counter = counter;
        }

        public String toString() {
            return "Item " ~ to!(char[])(this.counter);
        }
    }

    public this(Shell shell) {
        final TableViewer v = new TableViewer(shell, DWT.BORDER
                | DWT.FULL_SELECTION);
        v.setContentProvider(new MyContentProvider());

        TableViewerColumn column = new TableViewerColumn(v, DWT.NONE);
        column.getColumn().setWidth(200);
        column.getColumn().setText("Column 1");
        column.setLabelProvider(new class() ColumnLabelProvider {

            public String getText(Object element) {
                return element.toString();
            }

        });

        column = new TableViewerColumn(v, DWT.NONE);
        column.getColumn().setWidth(200);
        column.getColumn().setText("Column 2");
        column.setLabelProvider(new class() CellLabelProvider {

            public void update(ViewerCell cell) {
                final TableItem item = cast(TableItem) cell.getItem();
                DisposeListener listener = new class(item) DisposeListener {

                    private TableItem item;

                    public this(TableItem item) {
                        this.item = item;
                    }

                    public void widgetDisposed(DisposeEvent e) {
                        if( item.getData("EDITOR") !is null ) {
                            TableEditor editor = cast(TableEditor) item.getData("EDITOR");
                            editor.getEditor().dispose();
                            editor.dispose();
                        }
                    }

                };

                if (item.getData("EDITOR") !is null) {
                    TableEditor editor = cast(TableEditor) item.getData("EDITOR");
                    editor.getEditor().dispose();
                    editor.dispose();
                }

                if( item.getData("DISPOSELISTNER") !is null ) {
                    item.removeDisposeListener(cast(DisposeListener) item.getData("DISPOSELISTNER"));
                }

                TableEditor editor = new TableEditor(item.getParent());
                item.setData("EDITOR", editor);
                Composite comp = new Composite(item.getParent(), DWT.NONE);
                comp.setBackground(item.getParent().getBackground());
                comp.setBackgroundMode(DWT.INHERIT_DEFAULT);
                RowLayout l = new RowLayout();
                l.marginHeight = 0;
                l.marginWidth = 0;
                l.marginTop = 0;
                l.marginBottom = 0;
                comp.setLayout(l);
                Button rad = new Button(comp, DWT.RADIO);
                Button rad1 = new Button(comp, DWT.RADIO);
                Button rad2 = new Button(comp, DWT.RADIO);

                editor.grabHorizontal = true;
                editor.setEditor(comp, item, 1);

                item.addDisposeListener(listener);
                item.setData("DISPOSELISTNER",cast(Object)listener);
            }

        });

        ArraySeq!(MyModel) model = createModel(10);
        v.setInput(model);
        v.getTable().setLinesVisible(true);
        v.getTable().setHeaderVisible(true);
    }

    private ArraySeq!(MyModel) createModel(int amount) {
        ArraySeq!(MyModel) elements = new ArraySeq!(MyModel);
        elements.capacity  = amount;

        for (int i = 0; i < amount; i++) {
            elements ~= new MyModel(i);
        }

        return elements;
    }
}

void main() {
    Display display = new Display();
    Shell shell = new Shell(display);
    shell.setLayout(new FillLayout());
    new Snippet054NativeControlsInViewers(shell);
    shell.open();

    while (!shell.isDisposed()) {
        if (!display.readAndDispatch())
            display.sleep();
    }

    display.dispose();

}