--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.swt.gtk.linux.x86/src/org/eclipse/swt/custom/CTabItem.d	Fri Mar 20 23:03:58 2009 +0100
@@ -0,0 +1,1073 @@
+/*******************************************************************************
+ * Copyright (c) 2000, 2008 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.CTabItem;
+
+import java.lang.all;
+
+
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.SWTException;
+import org.eclipse.swt.graphics.Color;
+import org.eclipse.swt.graphics.Font;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Point;
+import org.eclipse.swt.graphics.RGB;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.graphics.TextLayout;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.Display;
+import org.eclipse.swt.widgets.Item;
+import org.eclipse.swt.widgets.Widget;
+import org.eclipse.swt.custom.CTabFolder;
+
+/**
+ * Instances of this class represent a selectable user interface object
+ * that represent a page in a notebook widget.
+ *
+ * <dl>
+ * <dt><b>Styles:</b></dt>
+ * <dd>SWT.CLOSE</dd>
+ * <dt><b>Events:</b></dt>
+ * <dd>(none)</dd>
+ * </dl>
+ * <p>
+ * IMPORTANT: This class is <em>not</em> intended to be subclassed.
+ * </p>
+ *
+ * @see <a href="http://www.eclipse.org/swt/snippets/#ctabfolder">CTabFolder, CTabItem snippets</a>
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ */
+public class CTabItem : Item {
+    CTabFolder parent;
+    int x,y,width,height = 0;
+    Control control; // the tab page
+
+    String toolTipText;
+    String shortenedText;
+    int shortenedTextWidth;
+
+    // Appearance
+    Font font;
+    Image disabledImage;
+
+    Rectangle closeRect;
+    int closeImageState = CTabFolder.NONE;
+    bool showClose = false;
+    bool showing = false;
+
+    // internal constants
+    static final int TOP_MARGIN = 2;
+    static final int BOTTOM_MARGIN = 2;
+    static final int LEFT_MARGIN = 4;
+    static final int RIGHT_MARGIN = 4;
+    static final int INTERNAL_SPACING = 4;
+    static final int FLAGS = SWT.DRAW_TRANSPARENT | SWT.DRAW_MNEMONIC;
+    static final String ELLIPSIS = "..."; //$NON-NLS-1$ // could use the ellipsis glyph on some platforms "\u2026"
+
+/**
+ * Constructs a new instance of this class given its parent
+ * (which must be a <code>CTabFolder</code>) and a style value
+ * describing its behavior and appearance. The item is added
+ * to the end of the items maintained by its parent.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a CTabFolder which will be the parent of the new instance (cannot be null)
+ * @param style the style of control to construct
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ * </ul>
+ * @exception SWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT
+ * @see Widget#getStyle()
+ */
+public this (CTabFolder parent, int style) {
+    this(parent, style, parent.getItemCount());
+}
+/**
+ * Constructs a new instance of this class given its parent
+ * (which must be a <code>CTabFolder</code>), a style value
+ * describing its behavior and appearance, and the index
+ * at which to place it in the items maintained by its parent.
+ * <p>
+ * The style value is either one of the style constants defined in
+ * class <code>SWT</code> which is applicable to instances of this
+ * class, or must be built by <em>bitwise OR</em>'ing together
+ * (that is, using the <code>int</code> "|" operator) two or more
+ * of those <code>SWT</code> style constants. The class description
+ * lists the style constants that are applicable to the class.
+ * Style bits are also inherited from superclasses.
+ * </p>
+ *
+ * @param parent a CTabFolder which will be the parent of the new instance (cannot be null)
+ * @param style the style of control to construct
+ * @param index the zero-relative index to store the receiver in its parent
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_NULL_ARGUMENT - if the parent is null</li>
+ *    <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</li>
+ * </ul>
+ * @exception SWTException <ul>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li>
+ * </ul>
+ *
+ * @see SWT
+ * @see Widget#getStyle()
+ */
+public this (CTabFolder parent, int style, int index) {
+    closeRect = new Rectangle(0, 0, 0, 0);
+    super (parent, style);
+    showClose = (style & SWT.CLOSE) !is 0;
+    parent.createItem (this, index);
+}
+
+/*
+ * Return whether to use ellipses or just truncate labels
+ */
+bool useEllipses() {
+    return parent.simple;
+}
+
+String shortenText(GC gc, String text, int width) {
+    return useEllipses()
+        ? shortenText(gc, text, width, ELLIPSIS)
+        : shortenText(gc, text, width, ""); //$NON-NLS-1$
+}
+
+String shortenText(GC gc, String text, int width, String ellipses) {
+    if (gc.textExtent(text, FLAGS).x <= width) return text;
+    int ellipseWidth = gc.textExtent(ellipses, FLAGS).x;
+    int length = text.length;
+    TextLayout layout = new TextLayout(getDisplay());
+    layout.setText(text);
+    int end = layout.getPreviousOffset(length, SWT.MOVEMENT_CLUSTER);
+    while (end > 0) {
+        text = text[ 0 .. end ];
+        int l = gc.textExtent(text, FLAGS).x;
+        if (l + ellipseWidth <= width) {
+            break;
+        }
+        end = layout.getPreviousOffset(end, SWT.MOVEMENT_CLUSTER);
+    }
+    layout.dispose();
+    return end is 0 ? text.substring(0, 1) : text ~ ellipses;
+}
+
+public override void dispose() {
+    if (isDisposed ()) return;
+    //if (!isValidThread ()) error (SWT.ERROR_THREAD_INVALID_ACCESS);
+    parent.destroyItem(this);
+    super.dispose();
+    parent = null;
+    control = null;
+    toolTipText = null;
+    shortenedText = null;
+    font = null;
+}
+void drawClose(GC gc) {
+    if (closeRect.width is 0 || closeRect.height is 0) return;
+    Display display = getDisplay();
+
+    // draw X 9x9
+    int indent = Math.max(1, (CTabFolder.BUTTON_SIZE-9)/2);
+    int x = closeRect.x + indent;
+    int y = closeRect.y + indent;
+    y += parent.onBottom ? -1 : 1;
+
+    Color closeBorder = display.getSystemColor(CTabFolder.BUTTON_BORDER);
+    switch (closeImageState) {
+        case CTabFolder.NORMAL: {
+            int[] shape = [x,y, x+2,y, x+4,y+2, x+5,y+2, x+7,y, x+9,y,
+                                     x+9,y+2, x+7,y+4, x+7,y+5, x+9,y+7, x+9,y+9,
+                                     x+7,y+9, x+5,y+7, x+4,y+7, x+2,y+9, x,y+9,
+                                     x,y+7, x+2,y+5, x+2,y+4, x,y+2];
+            gc.setBackground(display.getSystemColor(CTabFolder.BUTTON_FILL));
+            gc.fillPolygon(shape);
+            gc.setForeground(closeBorder);
+            gc.drawPolygon(shape);
+            break;
+        }
+        case CTabFolder.HOT: {
+            int[] shape = [x,y, x+2,y, x+4,y+2, x+5,y+2, x+7,y, x+9,y,
+                                     x+9,y+2, x+7,y+4, x+7,y+5, x+9,y+7, x+9,y+9,
+                                     x+7,y+9, x+5,y+7, x+4,y+7, x+2,y+9, x,y+9,
+                                     x,y+7, x+2,y+5, x+2,y+4, x,y+2];
+            Color fill = new Color(display, CTabFolder.CLOSE_FILL);
+            gc.setBackground(fill);
+            gc.fillPolygon(shape);
+            fill.dispose();
+            gc.setForeground(closeBorder);
+            gc.drawPolygon(shape);
+            break;
+        }
+        case CTabFolder.SELECTED: {
+            int[] shape = [x+1,y+1, x+3,y+1, x+5,y+3, x+6,y+3, x+8,y+1, x+10,y+1,
+                                     x+10,y+3, x+8,y+5, x+8,y+6, x+10,y+8, x+10,y+10,
+                                     x+8,y+10, x+6,y+8, x+5,y+8, x+3,y+10, x+1,y+10,
+                                     x+1,y+8, x+3,y+6, x+3,y+5, x+1,y+3];
+            Color fill = new Color(display, CTabFolder.CLOSE_FILL);
+            gc.setBackground(fill);
+            gc.fillPolygon(shape);
+            fill.dispose();
+            gc.setForeground(closeBorder);
+            gc.drawPolygon(shape);
+            break;
+        }
+        case CTabFolder.NONE: {
+            int[] shape = [x,y, x+10,y, x+10,y+10, x,y+10];
+            if (parent.gradientColors !is null && !parent.gradientVertical) {
+                parent.drawBackground(gc, shape, false);
+            } else {
+                Color defaultBackground = parent.getBackground();
+                Image image = parent.bgImage;
+                Color[] colors = parent.gradientColors;
+                int[] percents = parent.gradientPercents;
+                bool vertical = parent.gradientVertical;
+                parent.drawBackground(gc, shape, x, y, 10, 10, defaultBackground, image, colors, percents, vertical);
+            }
+            break;
+        }
+        default:
+    }
+}
+void drawSelected(GC gc ) {
+    Point size = parent.getSize();
+    int rightEdge = Math.min (x + width, parent.getRightItemEdge());
+
+    //   Draw selection border across all tabs
+    int xx = parent.borderLeft;
+    int yy = parent.onBottom ? size.y - parent.borderBottom - parent.tabHeight - parent.highlight_header : parent.borderTop + parent.tabHeight + 1;
+    int ww = size.x - parent.borderLeft - parent.borderRight;
+    int hh = parent.highlight_header - 1;
+    int[] shape = [xx,yy, xx+ww,yy, xx+ww,yy+hh, xx,yy+hh];
+    if (parent.selectionGradientColors !is null && !parent.selectionGradientVertical) {
+        parent.drawBackground(gc, shape, true);
+    } else {
+        gc.setBackground(parent.selectionBackground);
+        gc.fillRectangle(xx, yy, ww, hh);
+    }
+
+    if (parent.single) {
+        if (!showing) return;
+    } else {
+        // if selected tab scrolled out of view or partially out of view
+        // just draw bottom line
+        if (!showing){
+            int x1 = Math.max(0, parent.borderLeft - 1);
+            int y1 = (parent.onBottom) ? y - 1 : y + height;
+            int x2 = size.x - parent.borderRight;
+            gc.setForeground(CTabFolder.borderColor);
+            gc.drawLine(x1, y1, x2, y1);
+            return;
+        }
+
+        // draw selected tab background and outline
+        shape = null;
+        if (this.parent.onBottom) {
+            int[] left = parent.simple ? CTabFolder.SIMPLE_BOTTOM_LEFT_CORNER : CTabFolder.BOTTOM_LEFT_CORNER;
+            int[] right = parent.simple ? CTabFolder.SIMPLE_BOTTOM_RIGHT_CORNER : parent.curve;
+            if (parent.borderLeft is 0 && parent.indexOf(this) is parent.firstIndex) {
+                left = [x, y+height];
+            }
+            shape = new int[left.length+right.length+8];
+            int index = 0;
+            shape[index++] = x; // first point repeated here because below we reuse shape to draw outline
+            shape[index++] = y - 1;
+            shape[index++] = x;
+            shape[index++] = y - 1;
+            for (int i = 0; i < left.length/2; i++) {
+                shape[index++] = x + left[2*i];
+                shape[index++] = y + height + left[2*i+1] - 1;
+            }
+            for (int i = 0; i < right.length/2; i++) {
+                shape[index++] = parent.simple ? rightEdge - 1 + right[2*i] : rightEdge - parent.curveIndent + right[2*i];
+                shape[index++] = parent.simple ? y + height + right[2*i+1] - 1 : y + right[2*i+1] - 2;
+            }
+            shape[index++] = parent.simple ? rightEdge - 1 : rightEdge + parent.curveWidth - parent.curveIndent;
+            shape[index++] = y - 1;
+            shape[index++] = parent.simple ? rightEdge - 1 : rightEdge + parent.curveWidth - parent.curveIndent;
+            shape[index++] = y - 1;
+        } else {
+            int[] left = parent.simple ? CTabFolder.SIMPLE_TOP_LEFT_CORNER : CTabFolder.TOP_LEFT_CORNER;
+            int[] right = parent.simple ? CTabFolder.SIMPLE_TOP_RIGHT_CORNER : parent.curve;
+            if (parent.borderLeft is 0 && parent.indexOf(this) is parent.firstIndex) {
+                left = [x, y];
+            }
+            shape = new int[left.length+right.length+8];
+            int index = 0;
+            shape[index++] = x; // first point repeated here because below we reuse shape to draw outline
+            shape[index++] = y + height + 1;
+            shape[index++] = x;
+            shape[index++] = y + height + 1;
+            for (int i = 0; i < left.length/2; i++) {
+                shape[index++] = x + left[2*i];
+                shape[index++] = y + left[2*i+1];
+            }
+            for (int i = 0; i < right.length/2; i++) {
+                shape[index++] = parent.simple ? rightEdge - 1 + right[2*i] : rightEdge - parent.curveIndent + right[2*i];
+                shape[index++] = y + right[2*i+1];
+            }
+            shape[index++] = parent.simple ? rightEdge - 1 : rightEdge + parent.curveWidth - parent.curveIndent;
+            shape[index++] = y + height + 1;
+            shape[index++] = parent.simple ? rightEdge - 1 : rightEdge + parent.curveWidth - parent.curveIndent;
+            shape[index++] = y + height + 1;
+        }
+
+        Rectangle clipping = gc.getClipping();
+        Rectangle bounds = getBounds();
+        bounds.height += 1;
+        if (parent.onBottom) bounds.y -= 1;
+        bool tabInPaint = clipping.intersects(bounds);
+
+        if (tabInPaint) {
+            // fill in tab background
+            if (parent.selectionGradientColors !is null && !parent.selectionGradientVertical) {
+                parent.drawBackground(gc, shape, true);
+            } else {
+                Color defaultBackground = parent.selectionBackground;
+                Image image = parent.selectionBgImage;
+                Color[] colors = parent.selectionGradientColors;
+                int[] percents = parent.selectionGradientPercents;
+                bool vertical = parent.selectionGradientVertical;
+                xx = x;
+                yy = parent.onBottom ? y -1 : y + 1;
+                ww = width;
+                hh = height;
+                if (!parent.single && !parent.simple) ww += parent.curveWidth - parent.curveIndent;
+                parent.drawBackground(gc, shape, xx, yy, ww, hh, defaultBackground, image, colors, percents, vertical);
+            }
+        }
+
+        //Highlight MUST be drawn before the outline so that outline can cover it in the right spots (start of swoop)
+        //otherwise the curve looks jagged
+        drawHighlight(gc, rightEdge);
+
+        // draw outline
+        shape[0] = Math.max(0, parent.borderLeft - 1);
+        if (parent.borderLeft is 0 && parent.indexOf(this) is parent.firstIndex) {
+            shape[1] = parent.onBottom ? y + height - 1 : y;
+            shape[5] = shape[3] = shape[1];
+        }
+        shape[shape.length - 2] = size.x - parent.borderRight + 1;
+        for (int i = 0; i < shape.length/2; i++) {
+            if (shape[2*i + 1] is y + height + 1) shape[2*i + 1] -= 1;
+        }
+        RGB inside = parent.selectionBackground.getRGB();
+        if (parent.selectionBgImage !is null ||
+            (parent.selectionGradientColors !is null && parent.selectionGradientColors.length > 1)) {
+            inside = null;
+        }
+        RGB outside = parent.getBackground().getRGB();
+        if (parent.bgImage !is null ||
+            (parent.gradientColors !is null && parent.gradientColors.length > 1)) {
+            outside = null;
+        }
+        parent.antialias(shape, CTabFolder.borderColor.getRGB(), inside, outside, gc);
+        gc.setForeground(CTabFolder.borderColor);
+        gc.drawPolyline(shape);
+
+        if (!tabInPaint) return;
+    }
+
+    // draw Image
+    int xDraw = x + LEFT_MARGIN;
+    if (parent.single && (parent.showClose || showClose)) xDraw += CTabFolder.BUTTON_SIZE;
+    Image image = getImage();
+    if (image !is null) {
+        Rectangle imageBounds = image.getBounds();
+        // only draw image if it won't overlap with close button
+        int maxImageWidth = rightEdge - xDraw - RIGHT_MARGIN;
+        if (!parent.single && closeRect.width > 0) maxImageWidth -= closeRect.width + INTERNAL_SPACING;
+        if (imageBounds.width < maxImageWidth) {
+            int imageX = xDraw;
+            int imageY = y + (height - imageBounds.height) / 2;
+            imageY += parent.onBottom ? -1 : 1;
+            gc.drawImage(image, imageX, imageY);
+            xDraw += imageBounds.width + INTERNAL_SPACING;
+        }
+    }
+
+    // draw Text
+    int textWidth = rightEdge - xDraw - RIGHT_MARGIN;
+    if (!parent.single && closeRect.width > 0) textWidth -= closeRect.width + INTERNAL_SPACING;
+    if (textWidth > 0) {
+        Font gcFont = gc.getFont();
+        gc.setFont(font is null ? parent.getFont() : font);
+
+        if (shortenedText is null || shortenedTextWidth !is textWidth) {
+            shortenedText = shortenText(gc, getText(), textWidth);
+            shortenedTextWidth = textWidth;
+        }
+        Point extent = gc.textExtent(shortenedText, FLAGS);
+        int textY = y + (height - extent.y) / 2;
+        textY += parent.onBottom ? -1 : 1;
+
+        gc.setForeground(parent.selectionForeground);
+        gc.drawText(shortenedText, xDraw, textY, FLAGS);
+        gc.setFont(gcFont);
+
+        // draw a Focus rectangle
+        if (parent.isFocusControl()) {
+            Display display = getDisplay();
+            if (parent.simple || parent.single) {
+                gc.setBackground(display.getSystemColor(SWT.COLOR_BLACK));
+                gc.setForeground(display.getSystemColor(SWT.COLOR_WHITE));
+                gc.drawFocus(xDraw-1, textY-1, extent.x+2, extent.y+2);
+            } else {
+                gc.setForeground(display.getSystemColor(CTabFolder.BUTTON_BORDER));
+                gc.drawLine(xDraw, textY+extent.y+1, xDraw+extent.x+1, textY+extent.y+1);
+            }
+        }
+    }
+    if (parent.showClose || showClose) drawClose(gc);
+}
+
+/*
+ * Draw a highlight effect along the left, top, and right edges of the tab.
+ * Only for curved tabs, on top.
+ * Do not draw if insufficient colors.
+ */
+void drawHighlight(GC gc, int rightEdge) {
+    //only draw for curvy tabs and only draw for top tabs
+    if(parent.simple || this.parent.onBottom)
+        return;
+
+    if(parent.selectionHighlightGradientBegin is null)
+        return;
+
+    Color[] gradients = parent.selectionHighlightGradientColorsCache;
+    if(gradients is null)
+        return;
+    int gradientsSize = gradients.length;
+    if(gradientsSize is 0)
+        return;     //shouldn't happen but just to be tidy
+
+    gc.setForeground(gradients[0]);
+
+    //draw top horizontal line
+    gc.drawLine(
+            CTabFolder.TOP_LEFT_CORNER_HILITE[0] + x + 1, //rely on fact that first pair is top/right of curve
+            1 + y,
+            rightEdge - parent.curveIndent,
+            1 + y);
+
+    int[] leftHighlightCurve = CTabFolder.TOP_LEFT_CORNER_HILITE;
+
+    int d = parent.tabHeight - parent.topCurveHighlightEnd.length /2;
+
+    int lastX = 0;
+    int lastY = 0;
+    int lastColorIndex = 0;
+
+    //draw upper left curve highlight
+    for (int i = 0; i < leftHighlightCurve.length /2; i++) {
+        int rawX = leftHighlightCurve[i * 2];
+        int rawY = leftHighlightCurve[i * 2 + 1];
+        lastX = rawX + x;
+        lastY = rawY + y;
+        lastColorIndex = rawY - 1;
+        gc.setForeground(gradients[lastColorIndex]);
+        gc.drawPoint(lastX, lastY);
+    }
+    //draw left vertical line highlight
+    for(int i = lastColorIndex; i < gradientsSize; i++) {
+        gc.setForeground(gradients[i]);
+        gc.drawPoint(lastX, 1 + lastY++);
+    }
+
+    int rightEdgeOffset = rightEdge - parent.curveIndent;
+
+    //draw right swoop highlight up to diagonal portion
+    for (int i = 0; i < parent.topCurveHighlightStart.length /2; i++) {
+        int rawX = parent.topCurveHighlightStart[i * 2];
+        int rawY = parent.topCurveHighlightStart[i * 2 + 1];
+        lastX = rawX + rightEdgeOffset;
+        lastY = rawY + y;
+        lastColorIndex = rawY - 1;
+        if(lastColorIndex >= gradientsSize)
+            break;  //can happen if tabs are unusually short and cut off the curve
+        gc.setForeground(gradients[lastColorIndex]);
+        gc.drawPoint(lastX, lastY);
+    }
+    //draw right diagonal line highlight
+    for(int i = lastColorIndex; i < lastColorIndex + d; i++) {
+        if(i >= gradientsSize)
+            break;  //can happen if tabs are unusually short and cut off the curve
+        gc.setForeground(gradients[i]);
+        gc.drawPoint(1 + lastX++, 1 + lastY++);
+    }
+
+    //draw right swoop highlight from diagonal portion to end
+    for (int i = 0; i < parent.topCurveHighlightEnd.length /2; i++) {
+        int rawX = parent.topCurveHighlightEnd[i * 2]; //d is already encoded in this value
+        int rawY = parent.topCurveHighlightEnd[i * 2 + 1]; //d already encoded
+        lastX = rawX + rightEdgeOffset;
+        lastY = rawY + y;
+        lastColorIndex = rawY - 1;
+        if(lastColorIndex >= gradientsSize)
+            break;  //can happen if tabs are unusually short and cut off the curve
+        gc.setForeground(gradients[lastColorIndex]);
+        gc.drawPoint(lastX, lastY);
+    }
+}
+
+/*
+ * Draw the unselected border for the receiver on the right.
+ *
+ * @param gc
+ */
+void drawRightUnselectedBorder(GC gc) {
+
+    int[] shape = null;
+    int startX = x + width - 1;
+
+    if (this.parent.onBottom) {
+        int[] right = parent.simple
+            ? CTabFolder.SIMPLE_UNSELECTED_INNER_CORNER
+            : CTabFolder.BOTTOM_RIGHT_CORNER;
+
+        shape = new int[right.length + 2];
+        int index = 0;
+
+        for (int i = 0; i < right.length / 2; i++) {
+            shape[index++] = startX + right[2 * i];
+            shape[index++] = y + height + right[2 * i + 1] - 1;
+        }
+        shape[index++] = startX;
+        shape[index++] = y - 1;
+    } else {
+        int[] right = parent.simple
+            ? CTabFolder.SIMPLE_UNSELECTED_INNER_CORNER
+            : CTabFolder.TOP_RIGHT_CORNER;
+
+        shape = new int[right.length + 2];
+        int index = 0;
+
+        for (int i = 0; i < right.length / 2; i++) {
+            shape[index++] = startX + right[2 * i];
+            shape[index++] = y + right[2 * i + 1];
+        }
+
+        shape[index++] = startX;
+        shape[index++] = y + height;
+
+    }
+
+    drawBorder(gc, shape);
+
+}
+
+/*
+ * Draw the border of the tab
+ *
+ * @param gc
+ * @param shape
+ */
+void drawBorder(GC gc, int[] shape) {
+
+    gc.setForeground(CTabFolder.borderColor);
+    gc.drawPolyline(shape);
+}
+
+/*
+ * Draw the unselected border for the receiver on the left.
+ *
+ * @param gc
+ */
+void drawLeftUnselectedBorder(GC gc) {
+
+    int[] shape = null;
+    if (this.parent.onBottom) {
+        int[] left = parent.simple
+            ? CTabFolder.SIMPLE_UNSELECTED_INNER_CORNER
+            : CTabFolder.BOTTOM_LEFT_CORNER;
+
+        shape = new int[left.length + 2];
+        int index = 0;
+        shape[index++] = x;
+        shape[index++] = y - 1;
+        for (int i = 0; i < left.length / 2; i++) {
+            shape[index++] = x + left[2 * i];
+            shape[index++] = y + height + left[2 * i + 1] - 1;
+        }
+    } else {
+        int[] left = parent.simple
+            ? CTabFolder.SIMPLE_UNSELECTED_INNER_CORNER
+            : CTabFolder.TOP_LEFT_CORNER;
+
+        shape = new int[left.length + 2];
+        int index = 0;
+        shape[index++] = x;
+        shape[index++] = y + height;
+        for (int i = 0; i < left.length / 2; i++) {
+            shape[index++] = x + left[2 * i];
+            shape[index++] = y + left[2 * i + 1];
+        }
+
+    }
+
+    drawBorder(gc, shape);
+}
+
+void drawUnselected(GC gc) {
+    // Do not draw partial items
+    if (!showing) return;
+
+    Rectangle clipping = gc.getClipping();
+    Rectangle bounds = getBounds();
+    if (!clipping.intersects(bounds)) return;
+
+    // draw border
+    int index = parent.indexOf(this);
+
+    if (index > 0 && index < parent.selectedIndex)
+        drawLeftUnselectedBorder(gc);
+    // If it is the last one then draw a line
+    if (index > parent.selectedIndex)
+        drawRightUnselectedBorder(gc);
+
+    // draw Image
+    int xDraw = x + LEFT_MARGIN;
+    Image image = getImage();
+    if (image !is null && parent.showUnselectedImage) {
+        Rectangle imageBounds = image.getBounds();
+        // only draw image if it won't overlap with close button
+        int maxImageWidth = x + width - xDraw - RIGHT_MARGIN;
+        if (parent.showUnselectedClose && (parent.showClose || showClose)) {
+            maxImageWidth -= closeRect.width + INTERNAL_SPACING;
+        }
+        if (imageBounds.width < maxImageWidth) {
+            int imageX = xDraw;
+            int imageHeight = imageBounds.height;
+            int imageY = y + (height - imageHeight) / 2;
+            imageY += parent.onBottom ? -1 : 1;
+            int imageWidth = imageBounds.width * imageHeight / imageBounds.height;
+            gc.drawImage(image,
+                         imageBounds.x, imageBounds.y, imageBounds.width, imageBounds.height,
+                         imageX, imageY, imageWidth, imageHeight);
+            xDraw += imageWidth + INTERNAL_SPACING;
+        }
+    }
+    // draw Text
+    int textWidth = x + width - xDraw - RIGHT_MARGIN;
+    if (parent.showUnselectedClose && (parent.showClose || showClose)) {
+        textWidth -= closeRect.width + INTERNAL_SPACING;
+    }
+    if (textWidth > 0) {
+        Font gcFont = gc.getFont();
+        gc.setFont(font is null ? parent.getFont() : font);
+        if (shortenedText is null || shortenedTextWidth !is textWidth) {
+            shortenedText = shortenText(gc, getText(), textWidth);
+            shortenedTextWidth = textWidth;
+        }
+        Point extent = gc.textExtent(shortenedText, FLAGS);
+        int textY = y + (height - extent.y) / 2;
+        textY += parent.onBottom ? -1 : 1;
+        gc.setForeground(parent.getForeground());
+        gc.drawText(shortenedText, xDraw, textY, FLAGS);
+        gc.setFont(gcFont);
+    }
+    // draw close
+    if (parent.showUnselectedClose && (parent.showClose || showClose)) drawClose(gc);
+}
+/**
+ * Returns a rectangle describing the receiver's size and location
+ * relative to its parent.
+ *
+ * @return the receiver's bounding column rectangle
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public Rectangle getBounds () {
+    //checkWidget();
+    int w = width;
+    if (!parent.simple && !parent.single && parent.indexOf(this) is parent.selectedIndex) w += parent.curveWidth - parent.curveIndent;
+    return new Rectangle(x, y, w, height);
+}
+/**
+* Gets the control that is displayed in the content area of the tab item.
+*
+* @return the control
+*
+* @exception SWTException <ul>
+*    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+*    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+* </ul>
+*/
+public Control getControl () {
+    checkWidget();
+    return control;
+}
+/**
+ * Get the image displayed in the tab if the tab is disabled.
+ *
+ * @return the disabled image or null
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @deprecated the disabled image is not used
+ */
+public Image getDisabledImage(){
+    checkWidget();
+    return disabledImage;
+}
+/**
+ * Returns the font that the receiver will use to paint textual information.
+ *
+ * @return the receiver's font
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ *  @since 3.0
+ */
+public Font getFont() {
+    checkWidget();
+    if (font !is null) return font;
+    return parent.getFont();
+}
+/**
+ * Returns the receiver's parent, which must be a <code>CTabFolder</code>.
+ *
+ * @return the receiver's parent
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public CTabFolder getParent () {
+    //checkWidget();
+    return parent;
+}
+/**
+ * Returns <code>true</code> to indicate that the receiver's close button should be shown.
+ * Otherwise return <code>false</code>. The initial value is defined by the style (SWT.CLOSE)
+ * that was used to create the receiver.
+ *
+ * @return <code>true</code> if the close button should be shown
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.4
+ */
+public bool getShowClose() {
+    checkWidget();
+    return showClose;
+}
+/**
+ * Returns the receiver's tool tip text, or null if it has
+ * not been set.
+ *
+ * @return the receiver's tool tip text
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public String getToolTipText () {
+    checkWidget();
+    if (toolTipText is null && shortenedText !is null) {
+        String text = getText();
+        if (shortenedText!=text) return text;
+    }
+    return toolTipText;
+}
+/**
+* Returns <code>true</code> if the item will be rendered in the visible area of the CTabFolder. Returns false otherwise.
+*
+*  @return <code>true</code> if the item will be rendered in the visible area of the CTabFolder. Returns false otherwise.
+*
+*  @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+* @since 3.0
+*/
+public bool isShowing () {
+    checkWidget();
+    return showing;
+}
+void onPaint(GC gc, bool isSelected) {
+    if (width is 0 || height is 0) return;
+    if (isSelected) {
+        drawSelected(gc);
+    } else {
+        drawUnselected(gc);
+    }
+}
+int preferredHeight(GC gc) {
+    Image image = getImage();
+    int h = (image is null) ? 0 : image.getBounds().height;
+    String text = getText();
+    if (font is null) {
+        h = Math.max(h, gc.textExtent(text, FLAGS).y);
+    } else {
+        Font gcFont = gc.getFont();
+        gc.setFont(font);
+        h = Math.max(h, gc.textExtent(text, FLAGS).y);
+        gc.setFont(gcFont);
+    }
+    return h + TOP_MARGIN + BOTTOM_MARGIN;
+}
+int preferredWidth(GC gc, bool isSelected, bool minimum) {
+    // NOTE: preferred width does not include the "dead space" caused
+    // by the curve.
+    if (isDisposed()) return 0;
+    int w = 0;
+    Image image = getImage();
+    if (image !is null && (isSelected || parent.showUnselectedImage)) {
+        w += image.getBounds().width;
+    }
+    String text = null;
+    if (minimum) {
+        int minChars = parent.minChars;
+        text = minChars is 0 ? null : getText();
+        if (text !is null && text.length > minChars) {
+            if (useEllipses()) {
+                int end = minChars < ELLIPSIS.length + 1 ? minChars : minChars - ELLIPSIS.length;
+                text = text[ 0 .. end ];
+                if (minChars > ELLIPSIS.length + 1) text ~= ELLIPSIS;
+            } else {
+                int end = minChars;
+                text = text[ 0 .. end ];
+            }
+        }
+    } else {
+        text = getText();
+    }
+    if (text !is null) {
+        if (w > 0) w += INTERNAL_SPACING;
+        if (font is null) {
+            w += gc.textExtent(text, FLAGS).x;
+        } else {
+            Font gcFont = gc.getFont();
+            gc.setFont(font);
+            w += gc.textExtent(text, FLAGS).x;
+            gc.setFont(gcFont);
+        }
+    }
+    if (parent.showClose || showClose) {
+        if (isSelected || parent.showUnselectedClose) {
+            if (w > 0) w += INTERNAL_SPACING;
+            w += CTabFolder.BUTTON_SIZE;
+        }
+    }
+    return w + LEFT_MARGIN + RIGHT_MARGIN;
+}
+/**
+ * Sets the control that is used to fill the client area of
+ * the tab folder when the user selects the tab item.
+ *
+ * @param control the new control (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li>
+ *    <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree</li>
+ * </ul>
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setControl (Control control) {
+    checkWidget();
+    if (control !is null) {
+        if (control.isDisposed()) SWT.error (SWT.ERROR_INVALID_ARGUMENT);
+        if (control.getParent() !is parent) SWT.error (SWT.ERROR_INVALID_PARENT);
+    }
+    if (this.control !is null && !this.control.isDisposed()) {
+        this.control.setVisible(false);
+    }
+    this.control = control;
+    if (this.control !is null) {
+        int index = parent.indexOf (this);
+        if (index is parent.getSelectionIndex ()){
+            this.control.setBounds(parent.getClientArea ());
+            this.control.setVisible(true);
+        } else {
+            this.control.setVisible(false);
+        }
+    }
+}
+/**
+ * Sets the image that is displayed if the tab item is disabled.
+ * Null will clear the image.
+ *
+ * @param image the image to be displayed when the item is disabled or null
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @deprecated This image is not used
+ */
+public void setDisabledImage (Image image) {
+    checkWidget();
+    if (image !is null && image.isDisposed ()) {
+        SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+    }
+    this.disabledImage = image;
+}
+/**
+ * Sets the font that the receiver will use to paint textual information
+ * for this item to the font specified by the argument, or to the default font
+ * for that kind of control if the argument is null.
+ *
+ * @param font the new font (or null)
+ *
+ * @exception IllegalArgumentException <ul>
+ *    <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed</li>
+ * </ul>
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.0
+ */
+public void setFont (Font font){
+    checkWidget();
+    if (font !is null && font.isDisposed ()) {
+        SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+    }
+    if (font is null && this.font is null) return;
+    if (font !is null && font==this.font) return;
+    this.font = font;
+    if (!parent.updateTabHeight(false)) {
+        parent.updateItems();
+        parent.redrawTabs();
+    }
+}
+public override void setImage (Image image) {
+    checkWidget();
+    if (image !is null && image.isDisposed ()) {
+        SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+    }
+    Image oldImage = getImage();
+    if (image is null && oldImage is null) return;
+    if (image !is null && image==oldImage) return;
+    super.setImage(image);
+    if (!parent.updateTabHeight(false)) {
+        // If image is the same size as before,
+        // redraw only the image
+        if (oldImage !is null && image !is null) {
+            Rectangle oldBounds = oldImage.getBounds();
+            Rectangle bounds = image.getBounds();
+            if (bounds.width is oldBounds.width && bounds.height is oldBounds.height) {
+                if (showing) {
+                    bool selected = parent.indexOf(this) is parent.selectedIndex;
+                    if (selected || parent.showUnselectedImage) {
+                        int imageX = x + LEFT_MARGIN, maxImageWidth;
+                        if (selected) {
+                            if (parent.single && (parent.showClose || showClose)) imageX += CTabFolder.BUTTON_SIZE;
+                            int rightEdge = Math.min (x + width, parent.getRightItemEdge());
+                            maxImageWidth = rightEdge - imageX - RIGHT_MARGIN;
+                            if (!parent.single && closeRect.width > 0) maxImageWidth -= closeRect.width + INTERNAL_SPACING;
+                        } else {
+                            maxImageWidth = x + width - imageX - RIGHT_MARGIN;
+                            if (parent.showUnselectedClose && (parent.showClose || showClose)) {
+                                maxImageWidth -= closeRect.width + INTERNAL_SPACING;
+                            }
+                        }
+                        if (bounds.width < maxImageWidth) {
+                            int imageY = y + (height - bounds.height) / 2 + (parent.onBottom ? -1 : 1);
+                            parent.redraw(imageX, imageY, bounds.width, bounds.height, false);
+                        }
+                    }
+                }
+                return;
+            }
+        }
+        parent.updateItems();
+        parent.redrawTabs();
+    }
+}
+/**
+ * Sets to <code>true</code> to indicate that the receiver's close button should be shown.
+ * If the parent (CTabFolder) was created with SWT.CLOSE style, changing this value has
+ * no effect.
+ *
+ * @param close the new state of the close button
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ *
+ * @since 3.4
+ */
+public void setShowClose(bool close) {
+    checkWidget();
+    if (showClose is close) return;
+    showClose = close;
+    parent.updateItems();
+    parent.redrawTabs();
+}
+public override void setText (String string) {
+    checkWidget();
+    // SWT extension: allow null for zero length string
+    //if (string is null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+    if (string.equals (getText())) return;
+    super.setText(string);
+    shortenedText = null;
+    shortenedTextWidth = 0;
+    if (!parent.updateTabHeight(false)) {
+        parent.updateItems();
+        parent.redrawTabs();
+    }
+}
+/**
+ * Sets the receiver's tool tip text to the argument, which
+ * may be null indicating that no tool tip text should be shown.
+ *
+ * @param string the new tool tip text (or null)
+ *
+ * @exception SWTException <ul>
+ *    <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li>
+ *    <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li>
+ * </ul>
+ */
+public void setToolTipText (String string) {
+    checkWidget();
+    toolTipText = string;
+}
+
+}