| /******************************************************************************* |
| * 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 |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.gtk.*; |
| 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, SHADOW_OUT</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>(none)</dd> |
| * </dl> |
| * <p> |
| * Note: Only one of the styles HORIZONTAL and VERTICAL may be specified. |
| * </p><p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| * |
| * @see <a href="http://www.eclipse.org/swt/snippets/#toolbar">ToolBar, ToolItem snippets</a> |
| * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> |
| * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public class ToolBar extends Composite { |
| ToolItem lastFocus; |
| ToolItem [] tabItemList; |
| ImageList imageList; |
| |
| /** |
| * 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 SWT#FLAT |
| * @see SWT#WRAP |
| * @see SWT#RIGHT |
| * @see SWT#HORIZONTAL |
| * @see SWT#SHADOW_OUT |
| * @see SWT#VERTICAL |
| * @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. |
| */ |
| if ((style & SWT.VERTICAL) != 0) { |
| this.style |= SWT.VERTICAL; |
| } else { |
| this.style |= SWT.HORIZONTAL; |
| } |
| int orientation = (style & SWT.VERTICAL) != 0 ? OS.GTK_ORIENTATION_VERTICAL : OS.GTK_ORIENTATION_HORIZONTAL; |
| OS.gtk_toolbar_set_orientation (handle, orientation); |
| } |
| |
| static int checkStyle (int style) { |
| /* |
| * Feature in GTK. It is not possible to create |
| * a toolbar that wraps. Therefore, no matter what |
| * style bits are specified, clear the WRAP bits so |
| * that the style matches the behavior. |
| */ |
| if ((style & SWT.WRAP) != 0) style &= ~SWT.WRAP; |
| /* |
| * 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); |
| } |
| |
| void createHandle (int index) { |
| state |= HANDLE | THEME_BACKGROUND; |
| fixedHandle = OS.g_object_new (display.gtk_fixed_get_type (), 0); |
| if (fixedHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.gtk_fixed_set_has_window (fixedHandle, true); |
| handle = OS.gtk_toolbar_new (); |
| if (handle == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.gtk_container_add (fixedHandle, handle); |
| if ((style & SWT.FLAT) != 0) { |
| byte [] swt_toolbar_flat = Converter.wcsToMbcs (null, "swt-toolbar-flat", true); |
| OS.gtk_widget_set_name (handle, swt_toolbar_flat); |
| } |
| } |
| |
| public Point computeSize (int wHint, int hHint, boolean changed) { |
| checkWidget (); |
| if (wHint != SWT.DEFAULT && wHint < 0) wHint = 0; |
| if (hHint != SWT.DEFAULT && hHint < 0) hHint = 0; |
| return computeNativeSize (handle, wHint, hHint, changed); |
| } |
| |
| Widget computeTabGroup () { |
| ToolItem [] items = _getItems (); |
| if (tabItemList == null) { |
| int i = 0; |
| while (i < items.length && items [i].control == null) i++; |
| if (i == items.length) return super.computeTabGroup (); |
| } |
| int index = 0; |
| while (index < items.length) { |
| if (items[index].hasFocus ()) break; |
| index++; |
| } |
| while (index >= 0) { |
| ToolItem item = items [index]; |
| if (item.isTabGroup ()) return item; |
| index--; |
| } |
| return super.computeTabGroup (); |
| } |
| |
| Widget [] computeTabList () { |
| ToolItem [] items = _getItems (); |
| if (tabItemList == null) { |
| int i = 0; |
| while (i < items.length && items [i].control == null) i++; |
| if (i == items.length) return super.computeTabList (); |
| } |
| Widget result [] = {}; |
| if (!isTabGroup () || !isEnabled () || !isVisible ()) return result; |
| ToolItem [] list = tabList != null ? _getTabItemList () : items; |
| for (int i=0; i<list.length; i++) { |
| ToolItem child = list [i]; |
| Widget [] childList = child.computeTabList (); |
| if (childList.length != 0) { |
| Widget [] newResult = new Widget [result.length + childList.length]; |
| System.arraycopy (result, 0, newResult, 0, result.length); |
| System.arraycopy (childList, 0, newResult, result.length, childList.length); |
| result = newResult; |
| } |
| } |
| if (result.length == 0) result = new Widget [] {this}; |
| return result; |
| } |
| |
| int /*long*/ eventHandle () { |
| return fixedHandle; |
| } |
| |
| int /*long*/ enterExitHandle() { |
| return handle; |
| } |
| |
| void fixChildren (Shell newShell, Shell oldShell, Decorations newDecorations, Decorations oldDecorations, Menu [] menus) { |
| super.fixChildren (newShell, oldShell, newDecorations, oldDecorations, menus); |
| ToolItem [] items = getItems (); |
| if (toolTipText == null) { |
| for (int i = 0; i < items.length; i++) { |
| ToolItem item = items [i]; |
| if (item.toolTipText != null) { |
| item.setToolTipText(oldShell, null); |
| item.setToolTipText(newShell, item.toolTipText); |
| } |
| } |
| } |
| } |
| |
| boolean forceFocus (int /*long*/ focusHandle) { |
| if (lastFocus != null && lastFocus.setFocus ()) return true; |
| ToolItem [] items = getItems (); |
| for (int i = 0; i < items.length; i++) { |
| ToolItem item = items [i]; |
| if (item.setFocus ()) return true; |
| } |
| return super.forceFocus (focusHandle); |
| } |
| |
| /** |
| * 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(); |
| if (!(0 <= index && index < getItemCount())) error (SWT.ERROR_INVALID_RANGE); |
| return getItems()[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 point 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 point) { |
| checkWidget(); |
| if (point == null) error (SWT.ERROR_NULL_ARGUMENT); |
| ToolItem[] items = getItems(); |
| for (int i=0; i<items.length; i++) { |
| if (items[i].getBounds().contains(point)) return items[i]; |
| } |
| return 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(); |
| int /*long*/ list = OS.gtk_container_get_children (handle); |
| if (list == 0) return 0; |
| int itemCount = OS.g_list_length (list); |
| OS.g_list_free (list); |
| return itemCount; |
| } |
| |
| /** |
| * Returns an array of <code>ToolItem</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(); |
| return _getItems (); |
| } |
| |
| ToolItem [] _getItems () { |
| int /*long*/ list = OS.gtk_container_get_children (handle); |
| if (list == 0) return new ToolItem [0]; |
| int count = OS.g_list_length (list); |
| ToolItem [] items = new ToolItem [count]; |
| int index = 0; |
| for (int i=0; i<count; i++) { |
| int /*long*/ data = OS.g_list_nth_data (list, i); |
| Widget widget = display.getWidget (data); |
| if (widget != null) items [index++] = (ToolItem) widget; |
| } |
| OS.g_list_free (list); |
| if (index != items.length) { |
| ToolItem [] newItems = new ToolItem [index]; |
| System.arraycopy (items, 0, newItems, 0, index); |
| items = newItems; |
| } |
| return items; |
| } |
| |
| /** |
| * 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(); |
| /* On GTK, toolbars cannot wrap */ |
| return 1; |
| } |
| |
| ToolItem [] _getTabItemList () { |
| if (tabItemList == null) return tabItemList; |
| int count = 0; |
| for (int i=0; i<tabItemList.length; i++) { |
| if (!tabItemList [i].isDisposed ()) count++; |
| } |
| if (count == tabItemList.length) return tabItemList; |
| ToolItem [] newList = new ToolItem [count]; |
| int index = 0; |
| for (int i=0; i<tabItemList.length; i++) { |
| if (!tabItemList [i].isDisposed ()) { |
| newList [index++] = tabItemList [i]; |
| } |
| } |
| tabItemList = newList; |
| return tabItemList; |
| } |
| |
| int /*long*/ gtk_key_press_event (int /*long*/ widget, int /*long*/ eventPtr) { |
| if (!hasFocus ()) return 0; |
| int /*long*/ result = super.gtk_key_press_event (widget, eventPtr); |
| if (result != 0) return result; |
| ToolItem [] items = getItems (); |
| int length = items.length; |
| int index = 0; |
| while (index < length) { |
| if (items [index].hasFocus ()) break; |
| index++; |
| } |
| GdkEventKey gdkEvent = new GdkEventKey (); |
| OS.memmove (gdkEvent, eventPtr, GdkEventKey.sizeof); |
| boolean next = false; |
| switch (gdkEvent.keyval) { |
| case OS.GDK_Up: |
| case OS.GDK_Left: next = false; break; |
| case OS.GDK_Down: { |
| if (0 <= index && index < length) { |
| ToolItem item = items [index]; |
| if ((item.style & SWT.DROP_DOWN) != 0) { |
| Event event = new Event (); |
| event.detail = SWT.ARROW; |
| int /*long*/ topHandle = item.topHandle (); |
| event.x = OS.GTK_WIDGET_X (topHandle); |
| event.y = OS.GTK_WIDGET_Y (topHandle) + OS.GTK_WIDGET_HEIGHT (topHandle); |
| if ((style & SWT.MIRRORED) != 0) event.x = getClientWidth() - OS.GTK_WIDGET_WIDTH(topHandle) - event.x; |
| item.postEvent (SWT.Selection, event); |
| return result; |
| } |
| } |
| //FALL THROUGH |
| } |
| case OS.GDK_Right: next = true; break; |
| default: return result; |
| } |
| if ((style & SWT.MIRRORED) != 0) next= !next; |
| int start = index, offset = next ? 1 : -1; |
| while ((index = (index + offset + length) % length) != start) { |
| ToolItem item = items [index]; |
| if (item.setFocus ()) return result; |
| } |
| return result; |
| } |
| |
| boolean hasFocus () { |
| ToolItem [] items = getItems (); |
| for (int i=0; i<items.length; i++) { |
| ToolItem item = items [i]; |
| if (item.hasFocus ()) return true; |
| } |
| return super.hasFocus(); |
| } |
| |
| /** |
| * 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); |
| ToolItem [] items = getItems (); |
| for (int i=0; i<items.length; i++) { |
| if (item == items[i]) return i; |
| } |
| return -1; |
| } |
| |
| boolean mnemonicHit (char key) { |
| ToolItem [] items = getItems (); |
| for (int i=0; i<items.length; i++) { |
| int /*long*/ labelHandle = items [i].labelHandle; |
| if (labelHandle != 0 && mnemonicHit (labelHandle, key)) return true; |
| } |
| return false; |
| } |
| |
| boolean mnemonicMatch (char key) { |
| ToolItem [] items = getItems (); |
| for (int i=0; i<items.length; i++) { |
| int /*long*/ labelHandle = items [i].labelHandle; |
| if (labelHandle != 0 && mnemonicMatch (labelHandle, key)) return true; |
| } |
| return false; |
| } |
| |
| void relayout () { |
| ToolItem [] items = getItems (); |
| for (int i=0; i<items.length; i++) { |
| ToolItem item = items [i]; |
| if (item != null) item.resizeControl (); |
| } |
| } |
| |
| void releaseChildren (boolean destroy) { |
| ToolItem [] items = getItems (); |
| for (int i=0; i<items.length; i++) { |
| ToolItem item = items [i]; |
| if (item != null && !item.isDisposed ()) { |
| item.release (false); |
| } |
| } |
| super.releaseChildren (destroy); |
| } |
| |
| void releaseWidget () { |
| super.releaseWidget (); |
| if (imageList != null) imageList.dispose (); |
| imageList = null; |
| } |
| |
| void removeControl (Control control) { |
| super.removeControl (control); |
| ToolItem [] items = getItems (); |
| for (int i=0; i<items.length; i++) { |
| ToolItem item = items [i]; |
| if (item.control == control) item.setControl (null); |
| } |
| } |
| |
| int setBounds (int x, int y, int width, int height, boolean move, boolean resize) { |
| int result = super.setBounds (x, y, width, height, move, resize); |
| if ((result & RESIZED) != 0) relayout (); |
| return result; |
| } |
| |
| void setFontDescription (int /*long*/ font) { |
| super.setFontDescription (font); |
| ToolItem [] items = getItems (); |
| for (int i = 0; i < items.length; i++) { |
| items[i].setFontDescription (font); |
| } |
| relayout (); |
| } |
| |
| void setForegroundColor (GdkColor color) { |
| super.setForegroundColor (color); |
| ToolItem [] items = getItems (); |
| for (int i = 0; i < items.length; i++) { |
| items[i].setForegroundColor (color); |
| } |
| } |
| |
| /*public*/ void setTabItemList (ToolItem [] tabList) { |
| checkWidget (); |
| if (tabList != null) { |
| for (int i=0; i<tabList.length; i++) { |
| ToolItem item = tabList [i]; |
| if (item == null) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (item.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (item.parent != this) error (SWT.ERROR_INVALID_PARENT); |
| } |
| ToolItem [] newList = new ToolItem [tabList.length]; |
| System.arraycopy (tabList, 0, newList, 0, tabList.length); |
| tabList = newList; |
| } |
| this.tabItemList = tabList; |
| } |
| |
| public void setToolTipText (String string) { |
| checkWidget(); |
| super.setToolTipText (string); |
| Shell shell = _getShell (); |
| ToolItem [] items = getItems (); |
| for (int i = 0; i < items.length; i++) { |
| String newString = string != null ? null : items [i].toolTipText; |
| shell.setToolTipText (items [i].handle, newString); |
| } |
| } |
| |
| } |