| package org.eclipse.swt.widgets;
|
|
|
| /*
|
| * (c) Copyright IBM Corp. 2000, 2001.
|
| * All Rights Reserved
|
| */
|
|
|
| import org.eclipse.swt.internal.photon.*;
|
| import org.eclipse.swt.*;
|
| import org.eclipse.swt.graphics.*;
|
|
|
| /** |
| * Instances of this class support the layout of selectable |
| * tool bar items. |
| * <p> |
| * The item children that may be added to instances of this class |
| * must be of type <code>ToolItem</code>. |
| * </p><p> |
| * Note that although this class is a subclass of <code>Composite</code>, |
| * it does not make sense to add <code>Control</code> children to it, |
| * or set a layout on it. |
| * </p><p> |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>FLAT, WRAP, RIGHT, HORIZONTAL, VERTICAL</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>(none)</dd> |
| * </dl> |
| * <p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| */ |
| public class ToolBar extends Composite {
|
| int itemCount;
|
| ToolItem [] items;
|
|
|
| /** |
| * 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 |
| * for all SWT widget classes should include a comment which |
| * describes the style constants which are applicable to the class. |
| * </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 SWT |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public ToolBar (Composite parent, int style) {
|
| super (parent, checkStyle (style));
|
|
|
| /*
|
| * Ensure that either of HORIZONTAL or VERTICAL is set.
|
| * NOTE: HORIZONTAL and VERTICAL have the same values
|
| * as H_SCROLL and V_SCROLL so it is necessary to first
|
| * clear these bits to avoid scroll bars and then reset
|
| * the bits using the original style supplied by the
|
| * programmer.
|
| */
|
| this.style = checkBits (style, SWT.HORIZONTAL, SWT.VERTICAL, 0, 0, 0, 0);
|
| int [] args = {
|
| OS.Pt_ARG_ORIENTATION, (style & SWT.VERTICAL) == 0 ? OS.Pt_HORIZONTAL : OS.Pt_VERTICAL, 0,
|
| };
|
| OS.PtSetResources(handle, args.length / 3, args);
|
| }
|
| static int checkStyle (int style) {
|
| /*
|
| * Even though it is legal to create this widget
|
| * with scroll bars, they serve no useful purpose
|
| * because they do not automatically scroll the
|
| * widget's client area. The fix is to clear
|
| * the SWT style.
|
| */
|
| return style & ~(SWT.H_SCROLL | SWT.V_SCROLL);
|
| }
|
|
|
| protected void checkSubclass () {
|
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS);
|
| }
|
|
|
| public Point computeSize (int wHint, int hHint, boolean changed) {
|
| // if (layout != null) return super.computeSize (wHint, hHint, changed);
|
| checkWidget();
|
| PhDim_t dim = new PhDim_t();
|
| if (!OS.PtWidgetIsRealized (handle)) OS.PtExtentWidgetFamily (handle);
|
| OS.PtWidgetPreferredSize(handle, dim);
|
| int width = dim.w, height = dim.h;
|
| if (wHint != SWT.DEFAULT || hHint != SWT.DEFAULT) {
|
| PhRect_t rect = new PhRect_t ();
|
| PhArea_t area = new PhArea_t ();
|
| rect.lr_x = (short) (wHint - 1);
|
| rect.lr_y = (short) (hHint - 1);
|
| OS.PtSetAreaFromWidgetCanvas (handle, rect, area);
|
| if (wHint != SWT.DEFAULT) width = area.size_w;
|
| if (hHint != SWT.DEFAULT) height = area.size_h;
|
| }
|
| return new Point(width, height);
|
| }
|
|
|
| void createHandle (int index) {
|
| state |= HANDLE;
|
| Display display = getDisplay ();
|
| int parentHandle = parent.handle;
|
|
|
| int [] args = {
|
| OS.Pt_ARG_FLAGS, hasBorder () ? OS.Pt_HIGHLIGHTED : 0, OS.Pt_HIGHLIGHTED,
|
| OS.Pt_ARG_TOOLBAR_FLAGS, 0, OS.Pt_TOOLBAR_DRAGGABLE | OS.Pt_TOOLBAR_END_SEPARATOR,
|
| OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS,
|
| };
|
| handle = OS.PtCreateWidget (OS.PtToolbar (), parentHandle, args.length / 3, args);
|
| if (handle == 0) error (SWT.ERROR_NO_HANDLES);
|
| }
|
|
|
| void createItem (ToolItem item, int index) {
|
| if (!(0 <= index && index <= itemCount)) error (SWT.ERROR_INVALID_RANGE);
|
| if (itemCount == items.length) {
|
| ToolItem [] newItems = new ToolItem [itemCount + 4];
|
| System.arraycopy (items, 0, newItems, 0, items.length);
|
| items = newItems;
|
| }
|
| item.createWidget (index);
|
| System.arraycopy (items, index, items, index + 1, itemCount++ - index);
|
| items [index] = item;
|
| }
|
|
|
| void createWidget (int index) {
|
| super.createWidget (index);
|
| items = new ToolItem [4];
|
| itemCount = 0;
|
| }
|
|
|
| void destroyItem (ToolItem item) {
|
| int index = 0;
|
| while (index < itemCount) {
|
| if (items [index] == item) break;
|
| index++;
|
| }
|
| if (index == itemCount) return;
|
| System.arraycopy (items, index + 1, items, index, --itemCount - index);
|
| items [itemCount] = null;
|
| }
|
|
|
| /** |
| * Returns the number of items contained in the receiver. |
| * |
| * @return the number of items |
| * |
| * @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 getItemCount () {
|
| checkWidget();
|
| return itemCount;
|
| }
|
|
|
| /** |
| * Returns an array of <code>TabItem</code>s which are the items |
| * in the receiver. |
| * <p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its list of items, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * |
| * @return the items in the receiver |
| * |
| * @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 ToolItem [] getItems () {
|
| checkWidget();
|
| ToolItem [] result = new ToolItem [itemCount];
|
| System.arraycopy (items, 0, result, 0, itemCount);
|
| return result;
|
| }
|
|
|
| /** |
| * Returns the item at the given, zero-relative index in the |
| * receiver. Throws an exception if the index is out of range. |
| * |
| * @param index the index of the item to return |
| * @return the item at the given index |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</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 ToolItem getItem (int index) {
|
| checkWidget();
|
| int count = itemCount;
|
| if (!(0 <= index && index < count)) error (SWT.ERROR_INVALID_RANGE);
|
| return items [index];
|
| }
|
|
|
| /** |
| * Returns the item at the given point in the receiver |
| * or null if no such item exists. The point is in the |
| * coordinate system of the receiver. |
| * |
| * @param point the point used to locate the item |
| * @return the item at the given point |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</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 ToolItem getItem (Point pt) {
|
| checkWidget();
|
| ToolItem [] items = getItems ();
|
| for (int i=0; i<items.length; i++) {
|
| Rectangle rect = items [i].getBounds ();
|
| if (rect.contains (pt)) return items [i];
|
| }
|
| return null;
|
| }
|
|
|
| /** |
| * Returns the number of rows in the receiver. When |
| * the receiver has the <code>WRAP</code> style, the |
| * number of rows can be greater than one. Otherwise, |
| * the number of rows is always one. |
| * |
| * @return the number of items |
| * |
| * @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 getRowCount () {
|
| checkWidget();
|
| return 1;
|
| }
|
|
|
| /** |
| * Searches the receiver's list starting at the first item |
| * (index 0) until an item is found that is equal to the |
| * argument, and returns the index of that item. If no item |
| * is found, returns -1. |
| * |
| * @param item the search item |
| * @return the index of the item |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the tool item is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the tool item 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> |
| */ |
| public int indexOf (ToolItem item) {
|
| checkWidget();
|
| if (item == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| if (item.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
|
| int count = itemCount;
|
| for (int i=0; i<count; i++) {
|
| if (items [i] == item) return i;
|
| }
|
| return -1;
|
| }
|
|
|
| void releaseWidget () {
|
| for (int i=0; i<items.length; i++) {
|
| ToolItem item = items [i];
|
| if (item != null && !item.isDisposed ()) {
|
| item.releaseWidget ();
|
| item.releaseHandle ();
|
| }
|
| }
|
| items = null;
|
| super.releaseWidget ();
|
| }
|
| |
| /* TEMPORARY CODE. Hack for eclipse. */ |
| public void setData(Object data) {
|
| super.setData(data);
|
| if (data != null && data.getClass().getName().indexOf("org.eclipse.ui.internal.ShortcutBarPart") != -1) {
|
| int [] args = {
|
| OS.Pt_ARG_ORIENTATION, OS.Pt_VERTICAL, 0,
|
| };
|
| OS.PtSetResources(handle, args.length / 3, args);
|
| }
|
| } |
|
|
| }
|