--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.swt.win32.win32.x86/src/org/eclipse/swt/custom/CBannerLayout.d	Mon Mar 02 14:44:16 2009 +0100
@@ -0,0 +1,199 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2006 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.custom.CBannerLayout;
+
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.widgets.Composite;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Layout;
+import org.eclipse.swt.widgets.Scrollable;
+import org.eclipse.swt.custom.CBanner;
+import org.eclipse.swt.custom.CLayoutData;
+
+import Math = tango.math.Math;
+
+/**
+ * This class provides the layout for CBanner
+ *
+ * @see CBanner
+ */
+class CBannerLayout : Layout {
+
+protected override Point computeSize(Composite composite, int wHint, int hHint, bool flushCache) {
+    CBanner banner = cast(CBanner)composite;
+    Control left = banner.left;
+    Control right = banner.right;
+    Control bottom = banner.bottom;
+    bool showCurve = left !is null && right !is null;
+    int height = hHint;
+    int width = wHint;
+
+    // Calculate component sizes
+    Point bottomSize = new Point(0, 0);
+    if (bottom !is null) {
+        int trim = computeTrim(bottom);
+        int w = wHint is SWT.DEFAULT ? SWT.DEFAULT : Math.max(0, width - trim);
+        bottomSize = computeChildSize(bottom, w, SWT.DEFAULT, flushCache);
+    }
+    Point rightSize = new Point(0, 0);
+    if (right !is null) {
+        int trim = computeTrim(right);
+        int w = SWT.DEFAULT;
+        if (banner.rightWidth !is SWT.DEFAULT) {
+            w = banner.rightWidth - trim;
+            if (left !is null) {
+                w = Math.min(w, width - banner.curve_width + 2* banner.curve_indent - CBanner.MIN_LEFT - trim);
+            }
+            w = Math.max(0, w);
+        }
+        rightSize = computeChildSize(right, w, SWT.DEFAULT, flushCache);
+        if (wHint !is SWT.DEFAULT) {
+            width -= rightSize.x + banner.curve_width - 2* banner.curve_indent;
+        }
+    }
+    Point leftSize = new Point(0, 0);
+    if (left !is null) {
+        int trim = computeTrim(left);
+        int w = wHint is SWT.DEFAULT ? SWT.DEFAULT : Math.max(0, width - trim);
+        leftSize = computeChildSize(left, w, SWT.DEFAULT, flushCache);
+    }
+
+    // Add up sizes
+    width = leftSize.x + rightSize.x;
+    height = bottomSize.y;
+    if (bottom !is null && (left !is null || right !is null)) {
+        height += CBanner.BORDER_STRIPE + 2;
+    }
+    if (left !is null) {
+        if (right is null) {
+            height += leftSize.y;
+        } else {
+            height += Math.max(leftSize.y, banner.rightMinHeight is SWT.DEFAULT ? rightSize.y : banner.rightMinHeight);
+        }
+    } else {
+        height += rightSize.y;
+    }
+    if (showCurve) {
+        width += banner.curve_width - 2*banner.curve_indent;
+        height +=  CBanner.BORDER_TOP + CBanner.BORDER_BOTTOM + 2*CBanner.BORDER_STRIPE;
+    }
+
+    if (wHint !is SWT.DEFAULT) width = wHint;
+    if (hHint !is SWT.DEFAULT) height = hHint;
+
+    return new Point(width, height);
+}
+Point computeChildSize(Control control, int wHint, int hHint, bool flushCache) {
+    Object data = control.getLayoutData();
+    if (data is null || !( null !is cast(CLayoutData)data)) {
+        data = new CLayoutData();
+        control.setLayoutData(data);
+    }
+    return (cast(CLayoutData)data).computeSize(control, wHint, hHint, flushCache);
+}
+int computeTrim(Control c) {
+    if ( auto s = cast(Scrollable)c) {
+        Rectangle rect = s.computeTrim (0, 0, 0, 0);
+        return rect.width;
+    }
+    return c.getBorderWidth () * 2;
+}
+protected override bool flushCache(Control control) {
+    Object data = control.getLayoutData();
+    if ( auto ld = cast(CLayoutData)data ) ld.flushCache();
+    return true;
+}
+protected override void layout(Composite composite, bool flushCache) {
+    CBanner banner = cast(CBanner)composite;
+    Control left = banner.left;
+    Control right = banner.right;
+    Control bottom = banner.bottom;
+
+    Point size = banner.getSize();
+    bool showCurve = left !is null && right !is null;
+    int width = size.x - 2*banner.getBorderWidth();
+    int height = size.y - 2*banner.getBorderWidth();
+
+    Point bottomSize = new Point(0, 0);
+    if (bottom !is null) {
+        int trim = computeTrim(bottom);
+        int w = Math.max(0, width - trim);
+        bottomSize = computeChildSize(bottom, w, SWT.DEFAULT, flushCache);
+        height -= bottomSize.y + CBanner.BORDER_STRIPE + 2;
+    }
+    if (showCurve) height -=  CBanner.BORDER_TOP + CBanner.BORDER_BOTTOM + 2*CBanner.BORDER_STRIPE;
+    height = Math.max(0, height);
+    Point rightSize = new Point(0,0);
+    if (right !is null) {
+        int trim = computeTrim(right);
+        int w = SWT.DEFAULT;
+        if (banner.rightWidth !is SWT.DEFAULT) {
+            w = banner.rightWidth - trim;
+            if (left !is null) {
+                w = Math.min(w, width - banner.curve_width + 2* banner.curve_indent - CBanner.MIN_LEFT - trim);
+            }
+            w = Math.max(0, w);
+        }
+        rightSize = computeChildSize(right, w, SWT.DEFAULT, flushCache);
+        width = width - (rightSize.x - banner.curve_indent + banner.curve_width - banner.curve_indent);
+    }
+    Point leftSize = new Point(0, 0);
+    if (left !is null) {
+        int trim = computeTrim(left);
+        int w = Math.max(0, width - trim);
+        leftSize = computeChildSize(left, w, SWT.DEFAULT, flushCache);
+    }
+
+    int x = 0;
+    int y = 0;
+    int oldStart = banner.curveStart;
+    Rectangle leftRect = null;
+    Rectangle rightRect = null;
+    Rectangle bottomRect = null;
+    if (bottom !is null) {
+        bottomRect = new Rectangle(x, y+size.y-bottomSize.y, bottomSize.x, bottomSize.y);
+    }
+    if (showCurve) y += CBanner.BORDER_TOP + CBanner.BORDER_STRIPE;
+    if(left !is null) {
+        leftRect = new Rectangle(x, y, leftSize.x, leftSize.y);
+        banner.curveStart = x + leftSize.x - banner.curve_indent;
+        x += leftSize.x - banner.curve_indent + banner.curve_width - banner.curve_indent;
+    }
+    if (right !is null) {
+        if (left !is null) {
+            rightSize.y = Math.max(leftSize.y, banner.rightMinHeight is SWT.DEFAULT ? rightSize.y : banner.rightMinHeight);
+        }
+        rightRect = new Rectangle(x, y, rightSize.x, rightSize.y);
+    }
+    if (banner.curveStart < oldStart) {
+        banner.redraw(banner.curveStart - CBanner.CURVE_TAIL, 0, oldStart + banner.curve_width - banner.curveStart + CBanner.CURVE_TAIL + 5, size.y, false);
+    }
+    if (banner.curveStart > oldStart) {
+        banner.redraw(oldStart - CBanner.CURVE_TAIL, 0, banner.curveStart + banner.curve_width - oldStart + CBanner.CURVE_TAIL + 5, size.y, false);
+    }
+    /*
+     * The paint events must be flushed in order to make the curve draw smoothly
+     * while the user drags the divider.
+     * On Windows, it is necessary to flush the paints before the children are
+     * resized because otherwise the children (particularly toolbars) will flash.
+     */
+    banner.update();
+    banner.curveRect = new Rectangle(banner.curveStart, 0, banner.curve_width, size.y);
+    if (bottomRect !is null) bottom.setBounds(bottomRect);
+    if (rightRect !is null) right.setBounds(rightRect);
+    if (leftRect !is null) left.setBounds(leftRect);
+}
+}