--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwt/custom/StyleRange.d	Fri Jan 18 02:15:59 2008 +0100
@@ -0,0 +1,191 @@
+/*******************************************************************************
+ * 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
+ *******************************************************************************/
+module dwt.custom.StyleRange;
+
+
+import dwt.DWT;
+import dwt.graphics.Color;
+import dwt.graphics.TextStyle;
+import dwt.internal.CloneableCompatibility;
+
+static import tango.text.Text;
+alias tango.text.Text.Text!(char) StringBuffer;
+
+public class StyleRange : TextStyle, CloneableCompatibility {
+
+    /**
+     * the start offset of the range, zero-based from the document start
+     */
+    public int start;
+
+    /**
+     * the length of the range
+     */
+    public int length;
+
+    /**
+     * the font style of the range. It may be a combination of
+     * DWT.NORMAL, DWT.ITALIC or DWT.BOLD
+     *
+     * Note: the font style is not used if the <code>font</code> attribute
+     * is set
+     */
+    public int fontStyle = DWT.NORMAL;
+
+/**
+ * Create a new style range with no styles
+ *
+ * @since 3.2
+ */
+public this() {
+    super(null, null, null);
+}
+
+/**
+ * Create a new style range.
+ *
+ * @param start start offset of the style
+ * @param length length of the style
+ * @param foreground foreground color of the style, null if none
+ * @param background background color of the style, null if none
+ */
+public this(int start, int length, Color foreground, Color background) {
+    super(null, foreground, background);
+    this.start = start;
+    this.length = length;
+}
+
+/**
+ * Create a new style range.
+ *
+ * @param start start offset of the style
+ * @param length length of the style
+ * @param foreground foreground color of the style, null if none
+ * @param background background color of the style, null if none
+ * @param fontStyle font style of the style, may be DWT.NORMAL, DWT.ITALIC or DWT.BOLD
+ */
+public this(int start, int length, Color foreground, Color background, int fontStyle) {
+    this(start, length, foreground, background);
+    this.fontStyle = fontStyle;
+}
+
+/**
+ * Compares the argument to the receiver, and returns true
+ * if they represent the <em>same</em> object using a class
+ * specific comparison.
+ *
+ * @param object the object to compare with this object
+ * @return <code>true</code> if the object is the same as this object and <code>false</code> otherwise
+ *
+ * @see #hashCode()
+ */
+public override int opEquals(Object object) {
+    if (object is this) return true;
+    if (auto style = cast(StyleRange) object ) {
+        if (start !is style.start) return false;
+        if (length !is style.length) return false;
+        return similarTo(style);
+    }
+    return false;
+}
+
+/**
+ * Returns an integer hash code for the receiver. Any two
+ * objects that return <code>true</code> when passed to
+ * <code>equals</code> must return the same value for this
+ * method.
+ *
+ * @return the receiver's hash
+ *
+ * @see #equals(Object)
+ */
+public override hash_t toHash() {
+    return super.toHash() ^ fontStyle;
+}
+bool isVariableHeight() {
+    return font !is null || metrics !is null || rise !is 0;
+}
+/**
+ * Returns whether or not the receiver is unstyled (i.e., does not have any
+ * style attributes specified).
+ *
+ * @return true if the receiver is unstyled, false otherwise.
+ */
+public bool isUnstyled() {
+    if (font !is null) return false;
+    if (rise !is 0) return false;
+    if (metrics !is null) return false;
+    if (foreground !is null) return false;
+    if (background !is null) return false;
+    if (fontStyle !is DWT.NORMAL) return false;
+    if (underline) return false;
+    if (strikeout) return false;
+    return true;
+}
+
+/**
+ * Compares the specified object to this StyleRange and answer if the two
+ * are similar. The object must be an instance of StyleRange and have the
+ * same field values for except for start and length.
+ *
+ * @param style the object to compare with this object
+ * @return true if the objects are similar, false otherwise
+ */
+public bool similarTo(StyleRange style) {
+    if (!super.opEquals(style)) return false;
+    if (fontStyle !is style.fontStyle) return false;
+    return true;
+}
+
+/**
+ * Returns a new StyleRange with the same values as this StyleRange.
+ *
+ * @return a shallow copy of this StyleRange
+ */
+public Object clone() {
+    return new StyleRange( start, length, foreground, background, fontStyle );
+}
+
+/**
+ * Returns a string containing a concise, human-readable
+ * description of the receiver.
+ *
+ * @return a string representation of the StyleRange
+ */
+public override char[] toString() {
+    StringBuffer buffer = new StringBuffer();
+    buffer.append("StyleRange {");
+    buffer.append(start);
+    buffer.append(", ");
+    buffer.append(length);
+    buffer.append(", fontStyle=");
+    switch (fontStyle) {
+        case DWT.BOLD:
+            buffer.append("bold");
+            break;
+        case DWT.ITALIC:
+            buffer.append("italic");
+            break;
+        case DWT.BOLD | DWT.ITALIC:
+            buffer.append("bold-italic");
+            break;
+        default:
+            buffer.append("normal");
+    }
+    char[] str = super.toString();
+    int index = tango.text.Util.locate( str, '{');
+    if( index is str.length ) index = -1;
+    str = str[ index + 1 .. $ ];
+    if (str.length > 1) buffer.append(", ");
+    buffer.append(str);
+    return buffer.toString();
+}
+}