--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwt/graphics/TextStyle.d	Sat Aug 09 17:00:02 2008 +0200
@@ -0,0 +1,336 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2007 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.graphics.TextStyle;
+
+import dwt.dwthelper.utils;
+
+import dwt.DWT;
+
+/**
+ * <code>TextStyle</code> defines a set of styles that can be applied
+ * to a range of text.
+ * <p>
+ * The hashCode() method in this class uses the values of the public
+ * fields to compute the hash value. When storing instances of the
+ * class in hashed collections, do not modify these fields after the
+ * object has been inserted.  
+ * </p>
+ * <p>
+ * Application code does <em>not</em> need to explicitly release the
+ * resources managed by each instance when those instances are no longer
+ * required, and thus no <code>dispose()</code> method is provided.
+ * </p>
+ * 
+ * @see TextLayout
+ * @see Font
+ * @see Color
+ *  
+ * @since 3.0
+ */
+public class TextStyle {
+
+    /**
+     * the font of the style
+     */
+    public Font font;
+
+    /**
+     * the foreground of the style
+     */
+    public Color foreground;
+
+    /**
+     * the background of the style
+     */
+    public Color background;
+
+    /**
+     * the underline flag of the style. The default underline
+     * style is <code>DWT.UNDERLINE_SINGLE</code>.
+     * 
+     * 
+     * @since 3.1
+     */ 
+    public bool underline;
+    
+    /**
+     * the underline color of the style
+     * 
+     * @since 3.4
+     */ 
+    public Color underlineColor;
+
+    /**
+     * the underline style. This style is ignored when
+     * <code>underline</code> is false.
+     * <p> 
+     * This value should be one of <code>DWT.UNDERLINE_SINGLE</code>,
+     * <code>DWT.UNDERLINE_DOUBLE</code>, <code>DWT.UNDERLINE_ERROR</code>,
+     * or <code>DWT.UNDERLINE_SQUIGGLE</code>.
+     * </p>
+     * 
+     * @see DWT#UNDERLINE_SINGLE
+     * @see DWT#UNDERLINE_DOUBLE 
+     * @see DWT#UNDERLINE_ERROR
+     * @see DWT#UNDERLINE_SQUIGGLE
+     * 
+     * @since 3.4
+     */ 
+    public int underlineStyle;
+
+    /**
+     * the strikeout flag of the style
+     * 
+     * @since 3.1
+     */ 
+    public bool strikeout;
+    
+    /**
+     * the strikeout color of the style
+     * 
+     * @since 3.4
+     */ 
+    public Color strikeoutColor;
+    
+    /**
+     * the border style. The default border style is <code>DWT.NONE</code>.
+     * <p> 
+     * This value should be one of <code>DWT.BORDER_SOLID</code>,
+     * <code>DWT.BORDER_DASH</code>,<code>DWT.BORDER_DOT</code> or
+     * <code>DWT.NONE</code>.
+     * </p>
+     * 
+     * @see DWT#BORDER_SOLID
+     * @see DWT#BORDER_DASH 
+     * @see DWT#BORDER_DOT
+     * @see DWT#NONE
+     * 
+     * @since 3.4
+     */ 
+    public int borderStyle;
+    
+    /**
+     * the border color of the style
+     * 
+     * @since 3.4
+     */ 
+    public Color borderColor;
+    
+    /**
+     * the GlyphMetrics of the style
+     * 
+     * @since 3.2
+     */ 
+    public GlyphMetrics metrics;
+    
+    /**
+     * the baseline rise of the style. 
+     * 
+     * @since 3.2
+     */ 
+    public int rise;
+
+/** 
+ * Create an empty text style.
+ *
+ * @since 3.4
+ */
+public TextStyle () {
+}
+    
+/** 
+ * Create a new text style with the specified font, foreground
+ * and background.
+ *
+ * @param font the font of the style, <code>null</code> if none 
+ * @param foreground the foreground color of the style, <code>null</code> if none 
+ * @param background the background color of the style, <code>null</code> if none
+ */
+public TextStyle (Font font, Color foreground, Color background) {
+    if (font !is null && font.isDisposed()) DWT.error (DWT.ERROR_INVALID_ARGUMENT);
+    if (foreground !is null && foreground.isDisposed()) DWT.error (DWT.ERROR_INVALID_ARGUMENT);
+    if (background !is null && background.isDisposed()) DWT.error (DWT.ERROR_INVALID_ARGUMENT);  
+    this.font = font;
+    this.foreground = foreground;
+    this.background = background;
+}
+
+
+/** 
+ * Create a new text style from an existing text style.
+ * 
+ *@param style the style to copy 
+ *
+ * @since 3.4
+ */
+public TextStyle (TextStyle style) {
+    if (style is null) DWT.error (DWT.ERROR_INVALID_ARGUMENT);
+    font = style.font;
+    foreground = style.foreground;
+    background = style.background;
+    underline = style.underline;
+    underlineColor = style.underlineColor;
+    underlineStyle = style.underlineStyle;
+    strikeout = style.strikeout;
+    strikeoutColor = style.strikeoutColor;
+    borderStyle = style.borderStyle;
+    borderColor = style.borderColor;
+    metrics = style.metrics;
+    rise = style.rise;
+}
+
+/**
+ * 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 bool equals(Object object) {
+    if (object is this) return true;
+    if (object is null) return false;
+    if (!(object instanceof TextStyle)) return false;
+    TextStyle style = (TextStyle)object;    
+    if (foreground !is null) {
+        if (!foreground.equals(style.foreground)) return false;
+    } else if (style.foreground !is null) return false;
+    if (background !is null) {
+        if (!background.equals(style.background)) return false;
+    } else if (style.background !is null) return false;
+    if (font !is null) {
+        if (!font.equals(style.font)) return false;
+    } else if (style.font !is null) return false;
+    if (metrics !is null || style.metrics !is null) return false;
+    if (underline !is style.underline) return false;
+    if (underlineStyle !is style.underlineStyle) return false;
+    if (borderStyle !is style.borderStyle) return false;
+    if (strikeout !is style.strikeout) return false;
+    if (rise !is style.rise) return false;
+    if (underlineColor !is null) {
+        if (!underlineColor.equals(style.underlineColor)) return false;
+    } else if (style.underlineColor !is null) return false;
+    if (strikeoutColor !is null) {
+        if (!strikeoutColor.equals(style.strikeoutColor)) return false;
+    } else if (style.strikeoutColor !is null) return false;
+    if (underlineStyle !is style.underlineStyle) return false;
+    if (borderColor !is null) {
+        if (!borderColor.equals(style.borderColor)) return false;
+    } else if (style.borderColor !is null) return false;
+    return true;
+}
+
+/**
+ * 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 int hashCode() {
+    int hash = 0;
+    if (foreground !is null) hash ^= foreground.hashCode();
+    if (background !is null) hash ^= background.hashCode();  
+    if (font !is null) hash ^= font.hashCode();
+    if (metrics !is null) hash ^= metrics.hashCode();
+    if (underline) hash ^= hash;
+    if (strikeout) hash ^= hash;
+    hash ^= rise;
+    if (underlineColor !is null) hash ^= underlineColor.hashCode();
+    if (strikeoutColor !is null) hash ^= strikeoutColor.hashCode();
+    if (borderColor !is null) hash ^= borderColor.hashCode();
+    hash ^= underlineStyle;
+    return hash;
+}
+
+bool isAdherentBorder(TextStyle style) {
+    if (this is style) return true;
+    if (style is null) return false;
+    if (borderStyle !is style.borderStyle) return false;
+    if (borderColor !is null) {
+        if (!borderColor.equals(style.borderColor)) return false;
+    } else if (style.borderColor !is null) return false;
+    return true;
+}
+
+bool isAdherentUnderline(TextStyle style) {
+    if (this is style) return true;
+    if (style is null) return false;
+    if (underline !is style.underline) return false;
+    if (underlineStyle !is style.underlineStyle) return false;
+    if (underlineColor !is null) {
+        if (!underlineColor.equals(style.underlineColor)) return false;
+    } else if (style.underlineColor !is null) return false;
+    return true;
+}
+
+bool isAdherentStrikeout(TextStyle style) {
+    if (this is style) return true;
+    if (style is null) return false;
+    if (strikeout !is style.strikeout) return false;
+    if (strikeoutColor !is null) {
+        if (!strikeoutColor.equals(style.strikeoutColor)) return false;
+    } else if (style.strikeoutColor !is null) return false;
+    return true;
+}
+
+/**
+ * Returns a string containing a concise, human-readable
+ * description of the receiver.
+ *
+ * @return a string representation of the <code>TextStyle</code>
+ */
+public String toString () {
+    StringBuffer buffer = new StringBuffer("TextStyle {");
+    int startLength = buffer.length();
+    if (font !is null) {
+        if (buffer.length() > startLength) buffer.append(", ");
+        buffer.append("font=");
+        buffer.append(font);
+    }
+    if (foreground !is null) {
+        if (buffer.length() > startLength) buffer.append(", ");
+        buffer.append("foreground=");
+        buffer.append(foreground);
+    }
+    if (background !is null) {
+        if (buffer.length() > startLength) buffer.append(", ");
+        buffer.append("background=");
+        buffer.append(background);
+    }
+    if (underline) {
+        if (buffer.length() > startLength) buffer.append(", ");
+        buffer.append("underlined");
+    }
+    if (strikeout) {
+        if (buffer.length() > startLength) buffer.append(", ");
+        buffer.append("striked out");
+    }
+    if (rise !is 0) {
+        if (buffer.length() > startLength) buffer.append(", ");
+        buffer.append("rise=");
+        buffer.append(rise);
+    }
+    if (metrics !is null) {
+        if (buffer.length() > startLength) buffer.append(", ");
+        buffer.append("metrics=");
+        buffer.append(metrics);
+    }
+    buffer.append("}");
+    return buffer.toString();
+}
+
+}