--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/draw2d/text/FlowBox.d	Sun Aug 03 00:52:14 2008 +0200
@@ -0,0 +1,157 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2005 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
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+module dwtx.draw2d.text.FlowBox;
+
+import dwt.dwthelper.utils;
+import dwtx.draw2d.text.LineRoot;
+
+/**
+ * A Geometric object for representing a region on a line of Text. This class adds the
+ * notion of a baseline to {@link dwtx.draw2d.geometry.Rectangle}. <i>Ascent</i> is
+ * the distance above the baseline. <i>Descent</i> is the distance below the baseline.
+ * <P>
+ * This class should not be treated as a <code>Rectangle</code> by clients.  It is
+ * important to use getters when available for lazy calculation of values.
+ *
+ * @author hudsonr
+ * @since 2.1
+ */
+public abstract class FlowBox {
+
+int width;
+
+/**
+ * The x location
+ */
+private int x;
+
+/**
+ * This method must be called on a block that is completely positioned and committed.
+ * @param x X
+ * @param y Y
+ * @return <code>true</code> if the FlowBox contains the point
+ */
+public abstract bool containsPoint(int x, int y);
+
+/**
+ * Returns the amount of line content in pixels which is above the baseline.  Ascent and
+ * descent are used to space consecutive lines apart. Certain types of line content, such
+ * as borders, extend beyond the ascent and descent.
+ * @return the <i>descent</i> in pixels below the baseline
+ */
+public abstract int getAscent();
+
+/**
+ * Returns y coordinate for the box's baseline.
+ * @return the baseline location
+ * @since 3.1
+ */
+public abstract int getBaseline();
+
+/**
+ * Returns the amount of line content in pixels which is below the baseline.
+ * @return the <i>descent</i> in pixels
+ * @see #getAscent()
+ */
+public abstract int getDescent();
+
+/**
+ * Returns the root LineBox in which this box is placed.  The root line is interesting
+ * when painting selection or hit testing.  All boxes in a line should render selection at
+ * the same top and bottom location.
+ * @return the line root.
+ * @since 3.1
+ */
+abstract LineRoot getLineRoot();
+
+/**
+ * Returns the outer ascent of this box.  The outer ascent is the ascent above the
+ * baseline including the border size and margin.  This is used when adding content into a
+ * LineBox.  The linebox's own border must be drawn around the children.
+ */
+int getOuterAscent() {
+    return getAscent();
+}
+
+/**
+ * Returns the outer descent of this box. The outer descent is the space below the
+ * baseline including the border size and margin. This is used when adding content into a
+ * LineBox. The linebox's own border must be drawn around the children.
+ */
+int getOuterDescent() {
+    return getDescent();
+}
+
+int getAscentWithBorder() {
+    throw new RuntimeException("Not valid on this box type"); //$NON-NLS-1$
+}
+
+int getDescentWithBorder() {
+    throw new RuntimeException("Not valid on this box type"); //$NON-NLS-1$
+}
+
+/**
+ * Returns the width of the box.
+ * @return the box's width
+ */
+public int getWidth() {
+    return width;
+}
+
+/**
+ * Returns the X coordinate of the box.
+ * @return the x coordinate
+ * @since 3.1
+ */
+public int getX() {
+    return x;
+}
+
+/**
+ * Returns <code>true</code> if any of the children are bi-directional.  Default
+ * implementation returns false.
+ *
+ * @return <code>true</code> if the box is bi-directional
+ * @since 3.1
+ */
+public bool requiresBidi() {
+    return false;
+}
+
+/**
+ * Sets the line root.
+ * @param root the line root
+ * @since 3.1
+ */
+void setLineRoot(LineRoot root) {
+}
+
+/**
+ * Sets the width of the box.
+ * @param width the new width
+ * @since 3.1
+ */
+public void setWidth(int width) {
+    this.width = width;
+}
+
+/**
+ * Sets the x coordinate for this box.
+ * @param x the x coordinate
+ * @since 3.1
+ */
+public void setX(int x) {
+    this.x = x;
+}
+
+}