changeset 22:b5521a2c27c2

TextStyle
author Frank Benoit <benoit@tionex.de>
date Mon, 07 Jan 2008 09:25:10 +0100
parents 4f9c0fea3440
children 3c2d10c00f61
files dwt/graphics/Color.d dwt/graphics/TextStyle.d todo.txt
diffstat 3 files changed, 204 insertions(+), 3 deletions(-) [+]
line wrap: on
line diff
--- a/dwt/graphics/Color.d	Mon Jan 07 09:11:15 2008 +0100
+++ b/dwt/graphics/Color.d	Mon Jan 07 09:25:10 2008 +0100
@@ -144,7 +144,7 @@
  *
  * @see #hashCode
  */
-public int opEquals(Object object) {
+public override int opEquals(Object object) {
 	if (object is this) return true;
 	if ( auto color = cast(Color)object ){
         GdkColor* gdkColor = color.handle;
@@ -207,7 +207,7 @@
  *
  * @see #equals
  */
-public int hashCode() {
+public override hash_t toHash() {
 	if (isDisposed()) return 0;
 	return handle.red ^ handle.green ^ handle.blue;
 }
--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwt/graphics/TextStyle.d	Mon Jan 07 09:25:10 2008 +0100
@@ -0,0 +1,201 @@
+/*******************************************************************************
+ * 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.graphics.TextStyle;
+
+import dwt.SWT;
+import dwt.graphics.Font;
+import dwt.graphics.Color;
+import dwt.graphics.GlyphMetrics;
+
+import tango.util.Convert;
+/**
+ * <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
+	 *
+	 * @since 3.1
+	 */
+	public bool underline;
+
+	/**
+	 * the strikeout flag of the style
+	 *
+	 * @since 3.1
+	 */
+	public bool strikeout;
+
+	/**
+	 * the GlyphMetrics of the style
+	 *
+	 * @since 3.2
+	 */
+	public GlyphMetrics metrics;
+
+	/**
+	 * the baseline rise of the style.
+	 *
+	 * @since 3.2
+	 */
+	public int rise;
+
+/**
+ * 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 this (Font font, Color foreground, Color background) {
+	if (font !is null && font.isDisposed()) SWT.error (SWT.ERROR_INVALID_ARGUMENT);
+	if (foreground !is null && foreground.isDisposed()) SWT.error (SWT.ERROR_INVALID_ARGUMENT);
+	if (background !is null && background.isDisposed()) SWT.error (SWT.ERROR_INVALID_ARGUMENT);
+	this.font = font;
+	this.foreground = foreground;
+	this.background = background;
+}
+
+/**
+ * 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 (object is null) return false;
+	if (!(cast(TextStyle)object)) return false;
+	TextStyle style = cast(TextStyle)object;
+	if (foreground !is null) {
+		if ( foreground != style.foreground ) return false;
+	} else if (style.foreground !is null) return false;
+	if (background !is null) {
+		if ( background != style.background ) return false;
+	} else if (style.background !is null) return false;
+	if (font !is null) {
+		if (font != style.font) return false;
+	} else if (style.font != null) return false;
+	if (metrics != null || style.metrics !is null) return false;
+	if (underline !is style.underline) return false;
+	if (strikeout !is style.strikeout) return false;
+	if (rise !is style.rise) 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 override hash_t toHash() {
+	int hash = 0;
+	if (foreground !is null) hash ^= foreground.toHash();
+	if (background !is null) hash ^= background.toHash();
+	if (font !is null) hash ^= font.toHash();
+	if (metrics !is null) hash ^= metrics.toHash();
+	if (underline) hash ^= hash;
+	if (strikeout) hash ^= hash;
+	hash ^= rise;
+	return hash;
+}
+
+/**
+ * Returns a string containing a concise, human-readable
+ * description of the receiver.
+ *
+ * @return a string representation of the <code>TextStyle</code>
+ */
+public char[] toString () {
+	char[] buffer = "TextStyle {";
+	int startLength = buffer.length;
+	if (font != null) {
+		if (buffer.length > startLength) buffer ~= ", ";
+		buffer ~= "font=";
+		buffer ~= font.toString;
+	}
+	if (foreground != null) {
+		if (buffer.length > startLength) buffer ~= ", ";
+		buffer ~= "foreground=";
+		buffer ~= foreground.toString;
+	}
+	if (background != null) {
+		if (buffer.length > startLength) buffer ~= ", ";
+		buffer ~= "background=";
+		buffer ~= background.toString;
+	}
+	if (underline) {
+		if (buffer.length > startLength) buffer ~= ", ";
+		buffer ~= "underlined";
+	}
+	if (strikeout) {
+		if (buffer.length > startLength) buffer ~= ", ";
+		buffer ~= "striked out";
+	}
+	if (rise != 0) {
+		if (buffer.length > startLength) buffer ~= ", ";
+		buffer ~= "rise=";
+		buffer ~= to!(char[])(rise);
+	}
+	if (metrics != null) {
+		if (buffer.length > startLength) buffer ~= ", ";
+		buffer ~= "metrics=";
+		buffer ~= metrics.toString;
+	}
+	buffer ~= "}";
+	return buffer;
+}
+
+}
--- a/todo.txt	Mon Jan 07 09:11:15 2008 +0100
+++ b/todo.txt	Mon Jan 07 09:25:10 2008 +0100
@@ -52,7 +52,7 @@
 graphics/Resource                      // OK
 graphics/RGB                           // OK
 graphics/TextLayout
-graphics/TextStyle
+graphics/TextStyle                     // OK
 graphics/Transform
 
 widgets/TableColumn