--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.swt.win32.win32.x86/src/org/eclipse/swt/layout/RowLayout.d	Mon Mar 02 14:44:16 2009 +0100
@@ -0,0 +1,516 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 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
+ * Port to the D programming language:
+ *     Frank Benoit <benoit@tionex.de>
+ *******************************************************************************/
+module org.eclipse.swt.layout.RowLayout;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Layout;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.layout.RowData;
+import tango.util.Convert;
+import Math = tango.math.Math;
+import java.lang.all;
+
+
+/**
+ * Instances of this class determine the size and position of the
+ * children of a <code>Composite</code> by placing them either in
+ * horizontal rows or vertical columns within the parent <code>Composite</code>.
+ * <p>
+ * <code>RowLayout</code> aligns all controls in one row if the
+ * <code>type</code> is set to horizontal, and one column if it is
+ * set to vertical. It has the ability to wrap, and provides configurable
+ * margins and spacing. <code>RowLayout</code> has a number of configuration
+ * fields. In addition, the height and width of each control in a
+ * <code>RowLayout</code> can be specified by setting a <code>RowData</code>
+ * object into the control using <code>setLayoutData ()</code>.
+ * </p>
+ * <p>
+ * The following example code creates a <code>RowLayout</code>, sets all
+ * of its fields to non-default values, and then sets it into a
+ * <code>Shell</code>.
+ * <pre>
+ *      RowLayout rowLayout = new RowLayout();
+ *      rowLayout.wrap = false;
+ *      rowLayout.pack = false;
+ *      rowLayout.justify = true;
+ *      rowLayout.type = SWT.VERTICAL;
+ *      rowLayout.marginLeft = 5;
+ *      rowLayout.marginTop = 5;
+ *      rowLayout.marginRight = 5;
+ *      rowLayout.marginBottom = 5;
+ *      rowLayout.spacing = 0;
+ *      shell.setLayout(rowLayout);
+ * </pre>
+ * If you are using the default field values, you only need one line of code:
+ * <pre>
+ *      shell.setLayout(new RowLayout());
+ * </pre>
+ * </p>
+ *
+ * @see RowData
+ * @see <a href="http://www.eclipse.org/swt/snippets/#rowlayout">RowLayout snippets</a>
+ * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: LayoutExample</a>
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public final class RowLayout : Layout {
+
+    /**
+     * type specifies whether the layout places controls in rows or
+     * columns.
+     *
+     * The default value is HORIZONTAL.
+     *
+     * Possible values are: <ul>
+     *    <li>HORIZONTAL: Position the controls horizontally from left to right</li>
+     *    <li>VERTICAL: Position the controls vertically from top to bottom</li>
+     * </ul>
+     *
+     * @since 2.0
+     */
+    public int type = SWT.HORIZONTAL;
+
+    /**
+     * marginWidth specifies the number of pixels of horizontal margin
+     * that will be placed along the left and right edges of the layout.
+     *
+     * The default value is 0.
+     *
+     * @since 3.0
+     */
+    public int marginWidth = 0;
+
+    /**
+     * marginHeight specifies the number of pixels of vertical margin
+     * that will be placed along the top and bottom edges of the layout.
+     *
+     * The default value is 0.
+     *
+     * @since 3.0
+     */
+    public int marginHeight = 0;
+
+    /**
+     * spacing specifies the number of pixels between the edge of one cell
+     * and the edge of its neighbouring cell.
+     *
+     * The default value is 3.
+     */
+    public int spacing = 3;
+
+    /**
+     * wrap specifies whether a control will be wrapped to the next
+     * row if there is insufficient space on the current row.
+     *
+     * The default value is true.
+     */
+    public bool wrap = true;
+
+    /**
+     * pack specifies whether all controls in the layout take
+     * their preferred size.  If pack is false, all controls will
+     * have the same size which is the size required to accommodate the
+     * largest preferred height and the largest preferred width of all
+     * the controls in the layout.
+     *
+     * The default value is true.
+     */
+    public bool pack = true;
+
+    /**
+     * fill specifies whether the controls in a row should be
+     * all the same height for horizontal layouts, or the same
+     * width for vertical layouts.
+     *
+     * The default value is false.
+     *
+     * @since 3.0
+     */
+    public bool fill = false;
+
+    /**
+     * center specifies whether the controls in a row should be
+     * centered vertically in each cell for horizontal layouts,
+     * or centered horizontally in each cell for vertical layouts.
+     *
+     * The default value is false.
+     * 
+     * @since 3.4
+     */
+    public bool center = false;
+    
+    /**
+     * justify specifies whether the controls in a row should be
+     * fully justified, with any extra space placed between the controls.
+     *
+     * The default value is false.
+     */
+    public bool justify = false;
+
+    /**
+     * marginLeft specifies the number of pixels of horizontal margin
+     * that will be placed along the left edge of the layout.
+     *
+     * The default value is 3.
+     */
+    public int marginLeft = 3;
+
+    /**
+     * marginTop specifies the number of pixels of vertical margin
+     * that will be placed along the top edge of the layout.
+     *
+     * The default value is 3.
+     */
+    public int marginTop = 3;
+
+    /**
+     * marginRight specifies the number of pixels of horizontal margin
+     * that will be placed along the right edge of the layout.
+     *
+     * The default value is 3.
+     */
+    public int marginRight = 3;
+
+    /**
+     * marginBottom specifies the number of pixels of vertical margin
+     * that will be placed along the bottom edge of the layout.
+     *
+     * The default value is 3.
+     */
+    public int marginBottom = 3;
+
+/**
+ * Constructs a new instance of this class.
+ */
+public this () {
+}
+
+/**
+ * Constructs a new instance of this class given the type.
+ *
+ * @param type the type of row layout
+ *
+ * @since 2.0
+ */
+public this (int type) {
+    this.type = type;
+}
+
+override protected Point computeSize (Composite composite, int wHint, int hHint, bool flushCache_) {
+    Point extent;
+    if (type is SWT.HORIZONTAL) {
+        extent = layoutHorizontal (composite, false, (wHint !is SWT.DEFAULT) && wrap, wHint, flushCache_);
+    } else {
+        extent = layoutVertical (composite, false, (hHint !is SWT.DEFAULT) && wrap, hHint, flushCache_);
+    }
+    if (wHint !is SWT.DEFAULT) extent.x = wHint;
+    if (hHint !is SWT.DEFAULT) extent.y = hHint;
+    return extent;
+}
+
+Point computeSize (Control control, bool flushCache_) {
+    int wHint = SWT.DEFAULT, hHint = SWT.DEFAULT;
+    RowData data = cast(RowData) control.getLayoutData ();
+    if (data !is null) {
+        wHint = data.width;
+        hHint = data.height;
+    }
+    return control.computeSize (wHint, hHint, flushCache_);
+}
+
+override protected bool flushCache (Control control) {
+    return true;
+}
+
+String getName () {
+    String string = this.classinfo.name;
+    int index = string.lastIndexOf('.');
+    if (index is -1 ) return string;
+    return string[ index + 1 .. string.length ];
+}
+
+override protected void layout (Composite composite, bool flushCache_) {
+    Rectangle clientArea = composite.getClientArea ();
+    if (type is SWT.HORIZONTAL) {
+        layoutHorizontal (composite, true, wrap, clientArea.width, flushCache_);
+    } else {
+        layoutVertical (composite, true, wrap, clientArea.height, flushCache_);
+    }
+}
+
+Point layoutHorizontal (Composite composite, bool move, bool wrap, int width, bool flushCache_) {
+    Control [] children = composite.getChildren ();
+    int count = 0;
+    for (int i=0; i<children.length; i++) {
+        Control control = children [i];
+        RowData data = cast(RowData) control.getLayoutData ();
+        if (data is null || !data.exclude) {
+            children [count++] = children [i];
+        }
+    }
+    if (count is 0) {
+        return new Point (marginLeft + marginWidth * 2 + marginRight, marginTop + marginHeight * 2 + marginBottom);
+    }
+    int childWidth = 0, childHeight = 0, maxHeight = 0;
+    if (!pack) {
+        for (int i=0; i<count; i++) {
+            Control child = children [i];
+            Point size = computeSize (child, flushCache_);
+            childWidth = Math.max (childWidth, size.x);
+            childHeight = Math.max (childHeight, size.y);
+        }
+        maxHeight = childHeight;
+    }
+    int clientX = 0, clientY = 0;
+    if (move) {
+        Rectangle rect = composite.getClientArea ();
+        clientX = rect.x;
+        clientY = rect.y;
+    }
+    int [] wraps = null;
+    bool wrapped = false;
+    Rectangle [] bounds = null;
+    if (move && (justify || fill || center)) {
+        bounds = new Rectangle [count];
+        wraps = new int [count];
+    }
+    int maxX = 0, x = marginLeft + marginWidth, y = marginTop + marginHeight;
+    for (int i=0; i<count; i++) {
+        Control child = children [i];
+        if (pack) {
+            Point size = computeSize (child, flushCache_);
+            childWidth = size.x;
+            childHeight = size.y;
+        }
+        if (wrap && (i !is 0) && (x + childWidth > width)) {
+            wrapped = true;
+            if (move && (justify || fill || center)) wraps [i - 1] = maxHeight;
+            x = marginLeft + marginWidth;
+            y += spacing + maxHeight;
+            if (pack) maxHeight = 0;
+        }
+        if (pack || fill || center) {
+            maxHeight = Math.max (maxHeight, childHeight);
+        }
+        if (move) {
+            int childX = x + clientX, childY = y + clientY;
+            if (justify || fill || center) {
+                bounds [i] = new Rectangle (childX, childY, childWidth, childHeight);
+            } else {
+                child.setBounds (childX, childY, childWidth, childHeight);
+            }
+        }
+        x += spacing + childWidth;
+        maxX = Math.max (maxX, x);
+    }
+    maxX = Math.max (clientX + marginLeft + marginWidth, maxX - spacing);
+    if (!wrapped) maxX += marginRight + marginWidth;
+    if (move && (justify || fill || center)) {
+        int space = 0, margin = 0;
+        if (!wrapped) {
+            space = Math.max (0, (width - maxX) / (count + 1));
+            margin = Math.max (0, ((width - maxX) % (count + 1)) / 2);
+        } else {
+            if (fill || justify || center) {
+                int last = 0;
+                if (count > 0) wraps [count - 1] = maxHeight;
+                for (int i=0; i<count; i++) {
+                    if (wraps [i] !is 0) {
+                        int wrapCount = i - last + 1;
+                        if (justify) {
+                            int wrapX = 0;
+                            for (int j=last; j<=i; j++) {
+                                wrapX += bounds [j].width + spacing;
+                            }
+                            space = Math.max (0, (width - wrapX) / (wrapCount + 1));
+                            margin = Math.max (0, ((width - wrapX) % (wrapCount + 1)) / 2);
+                        }
+                        for (int j=last; j<=i; j++) {
+                            if (justify) bounds [j].x += (space * (j - last + 1)) + margin;
+                            if (fill) {
+                                bounds [j].height = wraps [i];
+                            } else {
+                                if (center) {
+                                    bounds [j].y += Math.max (0, (wraps [i] - bounds [j].height) / 2);
+                                }
+                            }
+                        }
+                        last = i + 1;
+                    }
+                }
+            }
+        }
+        for (int i=0; i<count; i++) {
+            if (!wrapped) {
+                if (justify) bounds [i].x += (space * (i + 1)) + margin;
+                if (fill) {
+                    bounds [i].height = maxHeight;
+                } else {
+                    if (center) {
+                        bounds [i].y += Math.max (0, (maxHeight - bounds [i].height) / 2);
+                    }
+                }
+            }
+            children [i].setBounds (bounds [i]);
+        }
+    }
+    return new Point (maxX, y + maxHeight + marginBottom + marginHeight);
+}
+
+Point layoutVertical (Composite composite, bool move, bool wrap, int height, bool flushCache_) {
+    Control [] children = composite.getChildren ();
+    int count = 0;
+    for (int i=0; i<children.length; i++) {
+        Control control = children [i];
+        RowData data = cast(RowData) control.getLayoutData ();
+        if (data is null || !data.exclude) {
+            children [count++] = children [i];
+        }
+    }
+    if (count is 0) {
+        return new Point (marginLeft + marginWidth * 2 + marginRight, marginTop + marginHeight * 2 + marginBottom);
+    }
+    int childWidth = 0, childHeight = 0, maxWidth = 0;
+    if (!pack) {
+        for (int i=0; i<count; i++) {
+            Control child = children [i];
+            Point size = computeSize (child, flushCache_);
+            childWidth = Math.max (childWidth, size.x);
+            childHeight = Math.max (childHeight, size.y);
+        }
+        maxWidth = childWidth;
+    }
+    int clientX = 0, clientY = 0;
+    if (move) {
+        Rectangle rect = composite.getClientArea ();
+        clientX = rect.x;
+        clientY = rect.y;
+    }
+    int [] wraps = null;
+    bool wrapped = false;
+    Rectangle [] bounds = null;
+    if (move && (justify || fill || center)) {
+        bounds = new Rectangle [count];
+        wraps = new int [count];
+    }
+    int maxY = 0, x = marginLeft + marginWidth, y = marginTop + marginHeight;
+    for (int i=0; i<count; i++) {
+        Control child = children [i];
+        if (pack) {
+            Point size = computeSize (child, flushCache_);
+            childWidth = size.x;
+            childHeight = size.y;
+        }
+        if (wrap && (i !is 0) && (y + childHeight > height)) {
+            wrapped = true;
+            if (move && (justify || fill || center)) wraps [i - 1] = maxWidth;
+            x += spacing + maxWidth;
+            y = marginTop + marginHeight;
+            if (pack) maxWidth = 0;
+        }
+        if (pack || fill || center) {
+            maxWidth = Math.max (maxWidth, childWidth);
+        }
+        if (move) {
+            int childX = x + clientX, childY = y + clientY;
+            if (justify || fill || center) {
+                bounds [i] = new Rectangle (childX, childY, childWidth, childHeight);
+            } else {
+                child.setBounds (childX, childY, childWidth, childHeight);
+            }
+        }
+        y += spacing + childHeight;
+        maxY = Math.max (maxY, y);
+    }
+    maxY = Math.max (clientY + marginTop + marginHeight, maxY - spacing);
+    if (!wrapped) maxY += marginBottom + marginHeight;
+    if (move && (justify || fill || center)) {
+        int space = 0, margin = 0;
+        if (!wrapped) {
+            space = Math.max (0, (height - maxY) / (count + 1));
+            margin = Math.max (0, ((height - maxY) % (count + 1)) / 2);
+        } else {
+            if (fill || justify || center) {
+                int last = 0;
+                if (count > 0) wraps [count - 1] = maxWidth;
+                for (int i=0; i<count; i++) {
+                    if (wraps [i] !is 0) {
+                        int wrapCount = i - last + 1;
+                        if (justify) {
+                            int wrapY = 0;
+                            for (int j=last; j<=i; j++) {
+                                wrapY += bounds [j].height + spacing;
+                            }
+                            space = Math.max (0, (height - wrapY) / (wrapCount + 1));
+                            margin = Math.max (0, ((height - wrapY) % (wrapCount + 1)) / 2);
+                        }
+                        for (int j=last; j<=i; j++) {
+                            if (justify) bounds [j].y += (space * (j - last + 1)) + margin;
+                            if (fill) {
+                                bounds [j].width = wraps [i];
+                            } else {
+                                if (center) {
+                                    bounds [j].x += Math.max (0, (wraps [i] - bounds [j].width) / 2);
+                                }
+                            }
+                        }
+                        last = i + 1;
+                    }
+                }
+            }
+        }
+        for (int i=0; i<count; i++) {
+            if (!wrapped) {
+                if (justify) bounds [i].y += (space * (i + 1)) + margin;
+                if (fill) {
+                    bounds [i].width = maxWidth;
+                } else {
+                    if (center) {
+                        bounds [i].x += Math.max (0, (maxWidth - bounds [i].width) / 2);
+                    }
+                }
+
+            }
+            children [i].setBounds (bounds [i]);
+        }
+    }
+    return new Point (x + maxWidth + marginRight + marginWidth, maxY);
+}
+
+/**
+ * Returns a string containing a concise, human-readable
+ * description of the receiver.
+ *
+ * @return a string representation of the layout
+ */
+override public String toString () {
+    String string = getName ()~" {";
+    string ~= "type="~((type !is SWT.HORIZONTAL) ? "SWT.VERTICAL" : "SWT.HORIZONTAL")~" ";
+    if (marginWidth !is 0) string ~= "marginWidth="~to!(String)(marginWidth)~" ";
+    if (marginHeight !is 0) string ~= "marginHeight="~to!(String)(marginHeight)~" ";
+    if (marginLeft !is 0) string ~= "marginLeft="~to!(String)(marginLeft)~" ";
+    if (marginTop !is 0) string ~= "marginTop="~to!(String)(marginTop)~" ";
+    if (marginRight !is 0) string ~= "marginRight="~to!(String)(marginRight)~" ";
+    if (marginBottom !is 0) string ~= "marginBottom="~to!(String)(marginBottom)~" ";
+    if (spacing !is 0) string ~= "spacing="~to!(String)(spacing)~" ";
+    string ~= "wrap="~to!(String)(wrap)~" ";
+    string ~= "pack="~to!(String)(pack)~" ";
+    string ~= "fill="~to!(String)(fill)~" ";
+    string ~= "justify="~to!(String)(justify)~" ";
+    string = string.trim();
+    string ~= "}";
+    return string;
+}
+}