--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.jface/src/org/eclipse/jface/viewers/ViewerCell.d	Sat Mar 14 18:23:29 2009 +0100
@@ -0,0 +1,428 @@
+/*******************************************************************************
+ * Copyright (c) 2006, 2008 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
+ *     Tom Schindl <tom.schindl@bestsolution.at> - initial API and implementation
+ *                                               - fix in bug: 195908,198035,215069,215735,227421
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+
+module org.eclipse.jface.viewers.ViewerCell;
+
+import org.eclipse.swt.custom.StyleRange;
+import org.eclipse.jface.viewers.ViewerRow;
+
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.Font;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Item;
+import org.eclipse.swt.widgets.Widget;
+
+import java.lang.all;
+import java.util.Set;
+
+/**
+ * The ViewerCell is the JFace representation of a cell entry in a ViewerRow.
+ *
+ * @since 3.3
+ *
+ */
+public class ViewerCell {
+    private int columnIndex;
+
+    private ViewerRow row;
+
+    private Object element;
+
+    /**
+     * Constant denoting the cell above current one (value is 1).
+     */
+    public static const int ABOVE = 1;
+
+    /**
+     * Constant denoting the cell below current one (value is 2).
+     */
+    public static const int BELOW = 1 << 1;
+
+    /**
+     * Constant denoting the cell to the left of the current one (value is 4).
+     */
+    public static const int LEFT = 1 << 2;
+
+    /**
+     * Constant denoting the cell to the right of the current one (value is 8).
+     */
+    public static const int RIGHT = 1 << 3;
+
+
+    /**
+     * Create a new instance of the receiver on the row.
+     *
+     * @param row
+     * @param columnIndex
+     */
+    this(ViewerRow row, int columnIndex, Object element) {
+        this.row = row;
+        this.columnIndex = columnIndex;
+        this.element = element;
+    }
+
+    /**
+     * Get the index of the cell.
+     *
+     * @return the index
+     */
+    public int getColumnIndex() {
+        return columnIndex;
+    }
+
+    /**
+     * Get the bounds of the cell.
+     *
+     * @return {@link Rectangle}
+     */
+    public Rectangle getBounds() {
+        return row.getBounds(columnIndex);
+    }
+
+    /**
+     * Get the element this row represents.
+     *
+     * @return {@link Object}
+     */
+    public Object getElement() {
+        if (element !is null) {
+            return element;
+        }
+
+        if (row !is null) {
+            return row.getElement();
+        }
+
+        return null;
+    }
+
+    /**
+     * Return the text for the cell.
+     *
+     * @return {@link String}
+     */
+    public String getText() {
+        return row.getText(columnIndex);
+    }
+
+    /**
+     * Return the Image for the cell.
+     *
+     * @return {@link Image} or <code>null</code>
+     */
+    public Image getImage() {
+        return row.getImage(columnIndex);
+    }
+
+    /**
+     * Set the background color of the cell.
+     *
+     * @param background
+     */
+    public void setBackground(Color background) {
+        row.setBackground(columnIndex, background);
+
+    }
+
+    /**
+     * Set the foreground color of the cell.
+     *
+     * @param foreground
+     */
+    public void setForeground(Color foreground) {
+        row.setForeground(columnIndex, foreground);
+
+    }
+
+    /**
+     * Set the font of the cell.
+     *
+     * @param font
+     */
+    public void setFont(Font font) {
+        row.setFont(columnIndex, font);
+
+    }
+
+    /**
+     * Set the text for the cell.
+     *
+     * @param text
+     */
+    public void setText(String text) {
+        row.setText(columnIndex, text);
+
+    }
+
+    /**
+     * Set the Image for the cell.
+     *
+     * @param image
+     */
+    public void setImage(Image image) {
+        row.setImage(columnIndex, image);
+
+    }
+
+    /**
+     * Set the style ranges to be applied on the text label
+     * Note: Requires {@link StyledCellLabelProvider} with owner draw enabled.
+     *
+     * @param styleRanges the styled ranges
+     *
+     * @since 3.4
+     */
+    public void setStyleRanges(StyleRange[] styleRanges) {
+        row.setStyleRanges(columnIndex, styleRanges);
+    }
+
+
+    /**
+     * Returns the style ranges to be applied on the text label or <code>null</code> if no
+     * style ranges have been set.
+     *
+     * @return styleRanges the styled ranges
+     *
+     * @since 3.4
+     */
+    public StyleRange[] getStyleRanges() {
+        return row.getStyleRanges(columnIndex);
+    }
+
+    /**
+     * Set the columnIndex.
+     *
+     * @param column
+     */
+    void setColumn(int column) {
+        columnIndex = column;
+
+    }
+
+    /**
+     * Set the row to rowItem and the columnIndex to column.
+     *
+     * @param rowItem
+     * @param column
+     */
+    void update(ViewerRow rowItem, int column, Object element) {
+        row = rowItem;
+        columnIndex = column;
+        this.element = element;
+    }
+
+    /**
+     * Return the item for the receiver.
+     *
+     * @return {@link Item}
+     */
+    public Widget getItem() {
+        return row.getItem();
+    }
+
+    /**
+     * Get the control for this cell.
+     *
+     * @return {@link Control}
+     */
+    public Control getControl() {
+        return row.getControl();
+    }
+
+    /**
+     * Get the current index. This can be different from the original index when
+     * columns are reordered
+     *
+     * @return the current index (as shown in the UI)
+     * @since 3.4
+     */
+    public int getVisualIndex() {
+        return row.getVisualIndex_package(getColumnIndex());
+    }
+
+    /**
+     * Returns the specified neighbor of this cell, or <code>null</code> if no
+     * neighbor exists in the given direction. Direction constants can be
+     * combined by bitwise OR; for example, this method will return the cell to
+     * the upper-left of the current cell by passing {@link #ABOVE} |
+     * {@link #LEFT}. If <code>sameLevel</code> is <code>true</code>, only
+     * cells in sibling rows (under the same parent) will be considered.
+     *
+     * @param directionMask
+     *            the direction mask used to identify the requested neighbor
+     *            cell
+     * @param sameLevel
+     *            if <code>true</code>, only consider cells from sibling rows
+     * @return the requested neighbor cell, or <code>null</code> if not found
+     */
+    public ViewerCell getNeighbor(int directionMask, bool sameLevel) {
+        ViewerRow row;
+
+        if ((directionMask & ABOVE) is ABOVE) {
+            row = this.row.getNeighbor(ViewerRow.ABOVE, sameLevel);
+        } else if ((directionMask & BELOW) is BELOW) {
+            row = this.row.getNeighbor(ViewerRow.BELOW, sameLevel);
+        } else {
+            row = this.row;
+        }
+
+        if (row !is null) {
+            int columnIndex;
+            columnIndex = getVisualIndex();
+
+            int modifier = 0;
+
+            if ((directionMask & LEFT) is LEFT) {
+                modifier = -1;
+            } else if ((directionMask & RIGHT) is RIGHT) {
+                modifier = 1;
+            }
+
+            columnIndex += modifier;
+
+            if (columnIndex >= 0 && columnIndex < row.getColumnCount()) {
+                ViewerCell cell = row.getCellAtVisualIndex(columnIndex);
+                if( cell !is null ) {
+                    while( cell !is null && columnIndex < row.getColumnCount() - 1  && columnIndex > 0 ) {
+                        if( cell.isVisible() ) {
+                            break;
+                        }
+
+                        columnIndex += modifier;
+                        cell = row.getCellAtVisualIndex(columnIndex);
+                        if( cell is null ) {
+                            break;
+                        }
+                    }
+                }
+
+                return cell;
+            }
+        }
+
+        return null;
+    }
+
+    /**
+     * @return the row
+     */
+    public ViewerRow getViewerRow() {
+        return row;
+    }
+
+    /**
+     * The location and bounds of the area where the text is drawn depends on
+     * various things (image displayed, control with SWT.CHECK)
+     *
+     * @return The bounds of the of the text area. May return <code>null</code>
+     *         if the underlying widget implementation doesn't provide this
+     *         information
+     * @since 3.4
+     */
+    public Rectangle getTextBounds() {
+        return row.getTextBounds(columnIndex);
+    }
+
+    /**
+     * Returns the location and bounds of the area where the image is drawn
+     *
+     * @return The bounds of the of the image area. May return <code>null</code>
+     *         if the underlying widget implementation doesn't provide this
+     *         information
+     * @since 3.4
+     */
+    public Rectangle getImageBounds() {
+        return row.getImageBounds(columnIndex);
+    }
+
+    /**
+     * Gets the foreground color of the cell.
+     *
+     * @return the foreground of the cell or <code>null</code> for the default foreground
+     *
+     * @since 3.4
+     */
+    public Color getForeground() {
+        return row.getForeground(columnIndex);
+    }
+
+    /**
+     * Gets the background color of the cell.
+     *
+     * @return the background of the cell or <code>null</code> for the default background
+     *
+     * @since 3.4
+     */
+    public Color getBackground() {
+        return row.getBackground(columnIndex);
+    }
+
+    /**
+     * Gets the font of the cell.
+     *
+     * @return the font of the cell or <code>null</code> for the default font
+     *
+     * @since 3.4
+     */
+    public Font getFont() {
+        return row.getFont(columnIndex);
+    }
+
+    /*
+     * (non-Javadoc)
+     *
+     * @see java.lang.Object#hashCode()
+     */
+    public override hash_t toHash() {
+        const int prime = 31;
+        int result = 1;
+        result = prime * result + columnIndex;
+        result = prime * result + ((row is null) ? 0 : row.toHash());
+        return result;
+    }
+
+    /*
+     * (non-Javadoc)
+     *
+     * @see java.lang.Object#equals(java.lang.Object)
+     */
+    public override int opEquals(Object obj) {
+        if (this is obj)
+            return true;
+        if (obj is null)
+            return false;
+        if (this.classinfo !is obj.classinfo )
+            return false;
+        ViewerCell other = cast(ViewerCell) obj;
+        if (columnIndex !is other.columnIndex)
+            return false;
+        if (row is null) {
+            if (other.row !is null)
+                return false;
+        } else if (!row.opEquals(other.row))
+            return false;
+        return true;
+    }
+    
+    private int getWidth() {
+        return row.getWidth(columnIndex);
+    }
+    
+    private bool isVisible() {
+        return getWidth() > 0;
+    }
+}