diff dwtx/draw2d/text/LineBox.d @ 98:95307ad235d9

Added Draw2d code, still work in progress
author Frank Benoit <benoit@tionex.de>
date Sun, 03 Aug 2008 00:52:14 +0200
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--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/dwtx/draw2d/text/LineBox.d	Sun Aug 03 00:52:14 2008 +0200
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+/*******************************************************************************
+ * Copyright (c) 2000, 2005 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 dwtx.draw2d.text.LineBox;
+
+import dwt.dwthelper.utils;
+import dwtx.dwtxhelper.Collection;
+import dwtx.draw2d.text.CompositeBox;
+import dwtx.draw2d.text.FlowBox;
+
+/**
+ * @author hudsonr
+ * @since 2.1
+ */
+public abstract class LineBox
+    : CompositeBox
+{
+
+/**
+ * The maximum ascent of all contained fragments.
+ */
+int contentAscent;
+
+/**
+ * The maximum descent of all contained fragments.
+ */
+int contentDescent;
+
+List fragments;
+
+public this(){
+    fragments = new ArrayList();
+}
+
+/**
+ * @see dwtx.draw2d.text.CompositeBox#add(dwtx.draw2d.text.FlowBox)
+ */
+public void add(FlowBox child) {
+    fragments.add(child);
+    width += child.getWidth();
+    contentAscent = Math.max(contentAscent, child.getOuterAscent());
+    contentDescent = Math.max(contentDescent, child.getOuterDescent());
+}
+
+/**
+ * @see dwtx.draw2d.text.FlowBox#getAscent()
+ */
+public int getAscent() {
+    int ascent = 0;
+    for (int i = 0; i < fragments.size(); i++)
+        ascent = Math.max(ascent, (cast(FlowBox)fragments.get(i)).getAscent());
+    return ascent;
+}
+
+/**
+ * Returns the remaining width available for line content.
+ * @return the available width in pixels
+ */
+int getAvailableWidth() {
+    if (recommendedWidth < 0)
+        return Integer.MAX_VALUE;
+    return recommendedWidth - getWidth();
+}
+
+int getBottomMargin() {
+    return 0;
+}
+
+/**
+ * @see dwtx.draw2d.text.FlowBox#getDescent()
+ */
+public int getDescent() {
+    int descent = 0;
+    for (int i = 0; i < fragments.size(); i++)
+        descent = Math.max(descent, (cast(FlowBox)fragments.get(i)).getDescent());
+    return descent;
+}
+
+/**
+ * @return Returns the fragments.
+ */
+List getFragments() {
+    return fragments;
+}
+
+int getTopMargin() {
+    return 0;
+}
+
+/**
+ * @return <code>true</code> if this box contains any fragments
+ */
+public bool isOccupied() {
+    return !fragments.isEmpty();
+}
+
+/**
+ * @see dwtx.draw2d.text.FlowBox#requiresBidi()
+ */
+public bool requiresBidi() {
+    for (Iterator iter = getFragments().iterator(); iter.hasNext();) {
+        FlowBox box = cast(FlowBox)iter.next();
+        if (box.requiresBidi())
+            return true;
+    }
+    return false;
+}
+
+}