--- /dev/null	Thu Jan 01 00:00:00 1970 +0000
+++ b/org.eclipse.swt.win32.win32.x86/src/org/eclipse/swt/widgets/ExpandItem.d	Mon Mar 02 14:44:16 2009 +0100
@@ -0,0 +1,506 @@
+/*******************************************************************************
+ * 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.widgets.ExpandItem;
+
+import org.eclipse.swt.widgets.Item;
+import org.eclipse.swt.widgets.Widget;
+
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.internal.win32.OS;
+import org.eclipse.swt.widgets.Control;
+import org.eclipse.swt.widgets.ExpandBar;
+import org.eclipse.swt.widgets.Item;
+
+import org.eclipse.swt.SWT;
+import org.eclipse.swt.SWTException;
+import org.eclipse.swt.graphics.GC;
+import org.eclipse.swt.graphics.Image;
+import org.eclipse.swt.graphics.Rectangle;
+import org.eclipse.swt.internal.win32.OS;
+
+import java.lang.all;
+
+/**
+ * Instances of this class represent a selectable user interface object
+ * that represents a expandable item in a expand bar.
+ * <p>
+ * <dl>
+ * <dt><b>Styles:</b></dt>
+ * <dd>(none)</dd>
+ * <dt><b>Events:</b></dt>
+ * <dd>(none)</dd>
+ * </dl>
+ * </p><p>
+ * IMPORTANT: This class is <em>not</em> intended to be subclassed.
+ * </p>
+ *
+ * @see ExpandBar
+ * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a>
+ *
+ * @since 3.2
+ */
+public class ExpandItem : Item {
+    ExpandBar parent;
+    Control control;
+    bool expanded, hover;
+    int x, y, width, height;
+    int imageHeight, imageWidth;
+    static const int TEXT_INSET = 6;
+    static const int BORDER = 1;
+    static const int CHEVRON_SIZE = 24;
+
+/**
+ * Constructs a new instance of this class given its parent
+ * and a style value describing its behavior and appearance.
+ * <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 composite control 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>
+ *    <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
+ * </ul>
+ *
+ * @see Widget#checkSubclass
+ * @see Widget#getStyle
+ */
+public this (ExpandBar parent, int style) {
+    this (parent, style, checkNull (parent).getItemCount ());
+}
+
+/**
+ * Constructs a new instance of this class given its parent, 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 composite control 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>
+ *    <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li>
+ * </ul>
+ *
+ * @see Widget#checkSubclass
+ * @see Widget#getStyle
+ */
+public this (ExpandBar parent, int style, int index) {
+    super (parent, style);
+    this.parent = parent;
+    parent.createItem (this, style, index);
+}
+
+static ExpandBar checkNull (ExpandBar control) {
+    if (control is null) SWT.error (SWT.ERROR_NULL_ARGUMENT);
+    return control;
+}
+
+private void drawChevron (HDC hDC, RECT* rect) {
+    HBRUSH oldBrush = OS.SelectObject (hDC, OS.GetSysColorBrush (OS.COLOR_BTNFACE));
+    OS.PatBlt (hDC, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, OS.PATCOPY);
+    OS.SelectObject (hDC, oldBrush);
+    rect.left += 4;
+    rect.top += 4;
+    rect.right -= 4;
+    rect.bottom -= 4;
+    HPEN hPen = OS.CreatePen (OS.PS_SOLID, 1, parent.foreground);
+    HPEN oldPen = OS.SelectObject (hDC, hPen);
+    int [] polyline1, polyline2;
+    if (expanded) {
+        int px = rect.left + 5;
+        int py = rect.top + 7;
+        polyline1 = [
+                px,py, px+1,py, px+1,py-1, px+2,py-1, px+2,py-2, px+3,py-2, px+3,py-3,
+                px+3,py-2, px+4,py-2, px+4,py-1, px+5,py-1, px+5,py, px+7,py];
+        py += 4;
+        polyline2 = [
+                px,py, px+1,py, px+1,py-1, px+2,py-1, px+2,py-2, px+3,py-2, px+3,py-3,
+                px+3,py-2, px+4,py-2, px+4,py-1,  px+5,py-1, px+5,py, px+7,py];
+    } else {
+        int px = rect.left + 5;
+        int py = rect.top + 4;
+        polyline1 = [
+                px,py, px+1,py, px+1,py+1, px+2,py+1, px+2,py+2, px+3,py+2, px+3,py+3,
+                px+3,py+2, px+4,py+2, px+4,py+1,  px+5,py+1, px+5,py, px+7,py];
+        py += 4;
+        polyline2 = [
+                px,py, px+1,py, px+1,py+1, px+2,py+1, px+2,py+2, px+3,py+2, px+3,py+3,
+                px+3,py+2, px+4,py+2, px+4,py+1,  px+5,py+1, px+5,py, px+7,py];
+    }
+    OS.Polyline (hDC, cast(POINT*)polyline1.ptr, polyline1.length / 2);
+    OS.Polyline (hDC, cast(POINT*)polyline2.ptr, polyline2.length / 2);
+    if (hover) {
+        HPEN whitePen = OS.CreatePen (OS.PS_SOLID, 1, OS.GetSysColor (OS.COLOR_3DHILIGHT));
+        HPEN darkGrayPen = OS.CreatePen (OS.PS_SOLID, 1, OS.GetSysColor (OS.COLOR_3DSHADOW));
+        OS.SelectObject (hDC, whitePen);
+        int [] points1 = [
+                rect.left, rect.bottom,
+                rect.left, rect.top,
+                rect.right, rect.top];
+        OS.Polyline (hDC, cast(POINT*)points1.ptr, points1.length / 2);
+        OS.SelectObject (hDC, darkGrayPen);
+        int [] points2 = [
+                rect.right, rect.top,
+                rect.right, rect.bottom,
+                rect.left, rect.bottom];
+        OS.Polyline (hDC, cast(POINT*)points2.ptr, points2.length / 2);
+        OS.SelectObject (hDC, oldPen);
+        OS.DeleteObject (whitePen);
+        OS.DeleteObject (darkGrayPen);
+    } else {
+        OS.SelectObject (hDC, oldPen);
+    }
+    OS.DeleteObject (hPen);
+}
+
+void drawItem (GC gc, HTHEME hTheme, RECT* clipRect, bool drawFocus) {
+    auto hDC = gc.handle;
+    int headerHeight = parent.getBandHeight ();
+    RECT rect;
+    OS.SetRect (&rect, x, y, x + width, y + headerHeight);
+    if (hTheme !is null) {
+        OS.DrawThemeBackground (hTheme, hDC, OS.EBP_NORMALGROUPHEAD, 0, &rect, clipRect);
+    } else {
+        HBRUSH oldBrush = OS.SelectObject (hDC, OS.GetSysColorBrush (OS.COLOR_BTNFACE));
+        OS.PatBlt (hDC, rect.left, rect.top, rect.right - rect.left, rect.bottom - rect.top, OS.PATCOPY);
+        OS.SelectObject (hDC, oldBrush);
+    }
+    if (image !is null) {
+        rect.left += ExpandItem.TEXT_INSET;
+        if (imageHeight > headerHeight) {
+            gc.drawImage (image, rect.left, rect.top + headerHeight - imageHeight);
+        } else {
+            gc.drawImage (image, rect.left, rect.top + (headerHeight - imageHeight) / 2);
+        }
+        rect.left += imageWidth;
+    }
+    if (text.length > 0) {
+        rect.left += ExpandItem.TEXT_INSET;
+        TCHAR[] buffer = StrToTCHARs ( text/+, parent.getCodePage ()+/ );
+        if (hTheme !is null) {
+            OS.DrawThemeText (hTheme, hDC, OS.EBP_NORMALGROUPHEAD, 0, buffer.ptr, buffer.length, OS.DT_VCENTER | OS.DT_SINGLELINE, 0, &rect);
+        } else {
+            int oldBkMode = OS.SetBkMode (hDC, OS.TRANSPARENT);
+            OS.DrawText (hDC, buffer.ptr, buffer.length, &rect, OS.DT_VCENTER | OS.DT_SINGLELINE);
+            OS.SetBkMode (hDC, oldBkMode);
+        }
+    }
+    int chevronSize = ExpandItem.CHEVRON_SIZE;
+    rect.left = rect.right - chevronSize;
+    rect.top = y + (headerHeight - chevronSize) / 2;
+    rect.bottom = rect.top + chevronSize;
+    if (hTheme !is null) {
+        int partID = expanded ? OS.EBP_NORMALGROUPCOLLAPSE : OS.EBP_NORMALGROUPEXPAND;
+        int stateID = hover ? OS.EBNGC_HOT : OS.EBNGC_NORMAL;
+        OS.DrawThemeBackground (hTheme, hDC, partID, stateID, &rect, clipRect);
+    } else {
+        drawChevron (hDC, &rect);
+    }
+    if (drawFocus) {
+        OS.SetRect (&rect, x + 1, y + 1, x + width - 2, y + headerHeight - 2);
+        OS.DrawFocusRect (hDC, &rect);
+    }
+    if (expanded) {
+        if (!parent.isAppThemed ()) {
+            HPEN pen = OS.CreatePen (OS.PS_SOLID, 1, OS.GetSysColor (OS.COLOR_BTNFACE));
+            HPEN oldPen = OS.SelectObject (hDC, pen);
+            int [] points = [
+                    x, y + headerHeight,
+                    x, y + headerHeight + height,
+                    x + width - 1, y + headerHeight + height,
+                    x + width - 1, y + headerHeight - 1];
+            OS.Polyline (hDC, cast(POINT*) points.ptr, points.length / 2);
+            OS.SelectObject (hDC, oldPen);
+            OS.DeleteObject (pen);
+        }
+    }
+}
+
+override void destroyWidget () {
+    parent.destroyItem (this);
+    releaseHandle ();
+}
+
+/**
+ * Returns the control that is shown when the item is expanded.
+ * If no control has been set, return <code>null</code>.
+ *
+ * @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;
+}
+
+/**
+ * Returns <code>true</code> if the receiver is expanded,
+ * and false otherwise.
+ *
+ * @return the expanded state
+ *
+ * @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 bool getExpanded () {
+    checkWidget ();
+    return expanded;
+}
+
+/**
+ * Returns the height of the receiver's header
+ *
+ * @return the height of the header
+ *
+ * @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 int getHeaderHeight () {
+    checkWidget ();
+    return Math.max (parent.getBandHeight (), imageHeight);
+}
+
+/**
+ * Gets the height of the receiver.
+ *
+ * @return the height
+ *
+ * @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 int getHeight () {
+    checkWidget ();
+    return height;
+}
+
+/**
+ * Returns the receiver's parent, which must be a <code>ExpandBar</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 ExpandBar getParent () {
+    checkWidget ();
+    return parent;
+}
+
+int getPreferredWidth (HTHEME hTheme, HDC hDC) {
+    int width = ExpandItem.TEXT_INSET * 2 + ExpandItem.CHEVRON_SIZE;
+    if (image !is null) {
+        width += ExpandItem.TEXT_INSET + imageWidth;
+    }
+    if (text.length > 0) {
+        RECT rect;
+        TCHAR[] buffer = StrToTCHARs (/+parent.getCodePage (),+/ text);
+        if (hTheme !is null) {
+            OS.GetThemeTextExtent (hTheme, hDC, OS.EBP_NORMALGROUPHEAD, 0, buffer.ptr, buffer.length, OS.DT_SINGLELINE, null, &rect);
+        } else {
+            OS.DrawText (hDC, buffer.ptr, buffer.length, &rect, OS.DT_CALCRECT);
+        }
+        width += (rect.right - rect.left);
+    }
+    return width;
+}
+
+bool isHover (int x, int y) {
+    int bandHeight = parent.getBandHeight ();
+    return this.x < x && x < (this.x + width) && this.y < y && y < (this.y + bandHeight);
+}
+
+void redraw (bool all) {
+    auto parentHandle = parent.handle;
+    int headerHeight = parent.getBandHeight ();
+    RECT rect;
+    int left = all ? x : x + width - headerHeight;
+    OS.SetRect (&rect, left, y, x + width, y + headerHeight);
+    OS.InvalidateRect (parentHandle, &rect, true);
+    if (imageHeight > headerHeight) {
+        OS.SetRect (&rect, x + ExpandItem.TEXT_INSET, y + headerHeight - imageHeight, x + ExpandItem.TEXT_INSET + imageWidth, y);
+        OS.InvalidateRect (parentHandle, &rect, true);
+    }
+    if (!parent.isAppThemed ()) {
+        OS.SetRect (&rect, x, y + headerHeight, x + width, y + headerHeight + height + 1);
+        OS.InvalidateRect (parentHandle, &rect, true);
+    }
+}
+
+override void releaseHandle () {
+    super.releaseHandle ();
+    parent = null;
+}
+
+override void releaseWidget () {
+    super.releaseWidget ();
+    control = null;
+}
+
+void setBounds (int x, int y, int width, int height, bool move, bool size) {
+    redraw (true);
+    int headerHeight = parent.getBandHeight ();
+    if (move) {
+        if (imageHeight > headerHeight) {
+            y += (imageHeight - headerHeight);
+        }
+        this.x = x;
+        this.y = y;
+        redraw (true);
+    }
+    if (size) {
+        this.width = width;
+        this.height = height;
+        redraw (true);
+    }
+    if (control !is null && !control.isDisposed ()) {
+        if (!parent.isAppThemed ()) {
+            x += BORDER;
+            width = Math.max (0, width - BORDER * 2);
+            height = Math.max (0, height - BORDER);
+        }
+        if (move && size) control.setBounds (x, y + headerHeight, width, height);
+        if (move && !size) control.setLocation (x, y + headerHeight);
+        if (!move && size) control.setSize (width, height);
+    }
+}
+
+/**
+ * Sets the control that is shown when the item is expanded.
+ *
+ * @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 ()) error (SWT.ERROR_INVALID_ARGUMENT);
+        if (control.parent !is parent) error (SWT.ERROR_INVALID_PARENT);
+    }
+    this.control = control;
+    if (control !is null) {
+        int headerHeight = parent.getBandHeight ();
+        control.setVisible (expanded);
+        if (!parent.isAppThemed ()) {
+            int width = Math.max (0, this.width - BORDER * 2);
+            int height = Math.max (0, this.height - BORDER);
+            control.setBounds (x + BORDER, y + headerHeight, width, height);
+        } else {
+            control.setBounds (x, y + headerHeight, width, height);
+        }
+    }
+}
+
+/**
+ * Sets the expanded state of the receiver.
+ *
+ * @param expanded the new expanded state
+ *
+ * @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 setExpanded (bool expanded) {
+    checkWidget ();
+    this.expanded = expanded;
+    parent.showItem (this);
+}
+
+/**
+ * Sets the height of the receiver. This is height of the item when it is expanded,
+ * excluding the height of the header.
+ *
+ * @param height the new height
+ *
+ * @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 setHeight (int height) {
+    checkWidget ();
+    if (height < 0) return;
+    setBounds (0, 0, width, height, false, true);
+    if (expanded) parent.layoutItems (parent.indexOf (this) + 1, true);
+}
+
+override public void setImage (Image image) {
+    super.setImage (image);
+    int oldImageHeight = imageHeight;
+    if (image !is null) {
+        Rectangle bounds = image.getBounds ();
+        imageHeight = bounds.height;
+        imageWidth = bounds.width;
+    } else {
+        imageHeight = imageWidth = 0;
+    }
+    if (oldImageHeight !is imageHeight) {
+        parent.layoutItems (parent.indexOf (this), true);
+    } else {
+        redraw (true);
+    }
+}
+
+override public void setText (String string) {
+    super.setText (string);
+    redraw (true);
+}
+}
+