/*******************************************************************************
* Copyright (c) 2000, 2013 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.internal.*;
import org.eclipse.swt.internal.win32.*;
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.events.*;
/**
* Instances of this class implement the notebook user interface
* metaphor. It allows the user to select a notebook page from
* set of pages.
* <p>
* The item children that may be added to instances of this class
* must be of type <code>TabItem</code>.
* <code>Control</code> children are created and then set into a
* tab item using <code>TabItem#setControl</code>.
* </p><p>
* Note that although this class is a subclass of <code>Composite</code>,
* it does not make sense to set a layout on it.
* </p><p>
* <dl>
* <dt><b>Styles:</b></dt>
* <dd>TOP, BOTTOM</dd>
* <dt><b>Events:</b></dt>
* <dd>Selection</dd>
* </dl>
* <p>
* Note: Only one of the styles TOP and BOTTOM 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/#tabfolder">TabFolder, TabItem 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 TabFolder extends Composite {
TabItem [] items;
ImageList imageList;
static final long /*int*/ TabFolderProc;
static final TCHAR TabFolderClass = new TCHAR (0, OS.WC_TABCONTROL, true);
boolean createdAsRTL;
/*
* These are the undocumented control id's for the children of
* a tab control. Since there are no constants for these values,
* they may change with different versions of Windows.
*/
static final int ID_UPDOWN = 1;
static {
WNDCLASS lpWndClass = new WNDCLASS ();
OS.GetClassInfo (0, TabFolderClass, lpWndClass);
TabFolderProc = lpWndClass.lpfnWndProc;
/*
* Feature in Windows. The tab control window class
* uses the CS_HREDRAW and CS_VREDRAW style bits to
* force a full redraw of the control and all children
* when resized. This causes flashing. The fix is to
* register a new window class without these bits and
* implement special code that damages only the exposed
* area.
*
* NOTE: Screen readers look for the exact class name
* of the control in order to provide the correct kind
* of assistance. Therefore, it is critical that the
* new window class have the same name. It is possible
* to register a local window class with the same name
* as a global class. Since bits that affect the class
* are being changed, it is possible that other native
* code, other than SWT, could create a control with
* this class name, and fail unexpectedly.
*/
long /*int*/ hInstance = OS.GetModuleHandle (null);
long /*int*/ hHeap = OS.GetProcessHeap ();
lpWndClass.hInstance = hInstance;
lpWndClass.style &= ~(OS.CS_HREDRAW | OS.CS_VREDRAW | OS.CS_GLOBALCLASS);
int byteCount = TabFolderClass.length () * TCHAR.sizeof;
long /*int*/ lpszClassName = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
OS.MoveMemory (lpszClassName, TabFolderClass, byteCount);
lpWndClass.lpszClassName = lpszClassName;
OS.RegisterClass (lpWndClass);
OS.HeapFree (hHeap, 0, lpszClassName);
}
/**
* 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
* @see SWT#TOP
* @see SWT#BOTTOM
* @see Widget#checkSubclass
* @see Widget#getStyle
*/
public TabFolder (Composite parent, int style) {
super (parent, checkStyle (style));
}
/**
* Adds the listener to the collection of listeners who will
* be notified when the user changes the receiver's selection, by sending
* it one of the messages defined in the <code>SelectionListener</code>
* interface.
* <p>
* When <code>widgetSelected</code> is called, the item field of the event object is valid.
* <code>widgetDefaultSelected</code> is not called.
* </p>
*
* @param listener the listener which should be notified when the user changes the receiver's selection
*
* @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>
*
* @see SelectionListener
* @see #removeSelectionListener
* @see SelectionEvent
*/
public void addSelectionListener(SelectionListener listener) {
checkWidget ();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
TypedListener typedListener = new TypedListener(listener);
addListener(SWT.Selection,typedListener);
addListener(SWT.DefaultSelection,typedListener);
}
long /*int*/ callWindowProc (long /*int*/ hwnd, int msg, long /*int*/ wParam, long /*int*/ lParam) {
if (handle == 0) return 0;
return OS.CallWindowProc (TabFolderProc, hwnd, msg, wParam, lParam);
}
static int checkStyle (int style) {
/*
* When the SWT.TOP style has not been set, force the
* tabs to be on the bottom for tab folders on PPC.
*/
if (OS.IsPPC) {
if ((style & SWT.TOP) == 0) style |= SWT.BOTTOM;
}
style = checkBits (style, SWT.TOP, SWT.BOTTOM, 0, 0, 0, 0);
/*
* 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) {
checkWidget ();
Point size = super.computeSize (wHint, hHint, changed);
RECT insetRect = new RECT (), itemRect = new RECT ();
OS.SendMessage (handle, OS.TCM_ADJUSTRECT, 0, insetRect);
int width = insetRect.left - insetRect.right;
int count = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0);
if (count != 0) {
OS.SendMessage (handle, OS.TCM_GETITEMRECT, count - 1, itemRect);
width = Math.max (width, itemRect.right - insetRect.right);
}
RECT rect = new RECT ();
OS.SetRect (rect, 0, 0, width, size.y);
OS.SendMessage (handle, OS.TCM_ADJUSTRECT, 1, rect);
int border = getBorderWidth ();
rect.left -= border; rect.right += border;
width = rect.right - rect.left;
size.x = Math.max (width, size.x);
return size;
}
public Rectangle computeTrim (int x, int y, int width, int height) {
checkWidget ();
RECT rect = new RECT ();
OS.SetRect (rect, x, y, x + width, y + height);
OS.SendMessage (handle, OS.TCM_ADJUSTRECT, 1, rect);
int border = getBorderWidth ();
rect.left -= border; rect.right += border;
rect.top -= border; rect.bottom += border;
int newWidth = rect.right - rect.left;
int newHeight = rect.bottom - rect.top;
return new Rectangle (rect.left, rect.top, newWidth, newHeight);
}
void createItem (TabItem item, int index) {
int count = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0);
if (!(0 <= index && index <= count)) error (SWT.ERROR_INVALID_RANGE);
if (count == items.length) {
TabItem [] newItems = new TabItem [items.length + 4];
System.arraycopy (items, 0, newItems, 0, items.length);
items = newItems;
}
TCITEM tcItem = new TCITEM ();
if (OS.SendMessage (handle, OS.TCM_INSERTITEM, index, tcItem) == -1) {
error (SWT.ERROR_ITEM_NOT_ADDED);
}
System.arraycopy (items, index, items, index + 1, count - index);
items [index] = item;
/*
* Send a selection event when the item that is added becomes
* the new selection. This only happens when the first item
* is added.
*/
if (count == 0) {
Event event = new Event ();
event.item = items [0];
sendSelectionEvent (SWT.Selection, event, true);
// the widget could be destroyed at this point
}
}
void createHandle () {
super.createHandle ();
state &= ~(CANVAS | THEME_BACKGROUND);
/* Enable the flat look for tab folders on PPC */
if (OS.IsPPC) {
OS.SendMessage (handle, OS.CCM_SETVERSION, 0x020c /*COMCTL32_VERSION*/, 0);
}
/*
* Feature in Windows. Despite the fact that the
* tool tip text contains \r\n, the tooltip will
* not honour the new line unless TTM_SETMAXTIPWIDTH
* is set. The fix is to set TTM_SETMAXTIPWIDTH to
* a large value.
*/
long /*int*/ hwndToolTip = OS.SendMessage (handle, OS.TCM_GETTOOLTIPS, 0, 0);
OS.SendMessage (hwndToolTip, OS.TTM_SETMAXTIPWIDTH, 0, 0x7FFF);
createdAsRTL = (style & SWT.RIGHT_TO_LEFT) != 0;
}
void createWidget () {
super.createWidget ();
items = new TabItem [4];
}
void destroyItem (TabItem item) {
int count = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0);
int index = 0;
while (index < count) {
if (items [index] == item) break;
index++;
}
if (index == count) return;
int selectionIndex = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0);
if (OS.SendMessage (handle, OS.TCM_DELETEITEM, index, 0) == 0) {
error (SWT.ERROR_ITEM_NOT_REMOVED);
}
System.arraycopy (items, index + 1, items, index, --count - index);
items [count] = null;
if (count == 0) {
if (imageList != null) {
OS.SendMessage (handle, OS.TCM_SETIMAGELIST, 0, 0);
display.releaseImageList (imageList);
}
imageList = null;
items = new TabItem [4];
}
if (count > 0 && index == selectionIndex) {
setSelection (Math.max (0, selectionIndex - 1), true);
}
}
void drawThemeBackground (long /*int*/ hDC, long /*int*/ hwnd, RECT rect) {
RECT rect2 = new RECT ();
OS.GetClientRect (handle, rect2);
OS.MapWindowPoints (handle, hwnd, rect2, 2);
if (OS.IntersectRect (new RECT (), rect2, rect)) {
OS.DrawThemeBackground (display.hTabTheme (), hDC, OS.TABP_BODY, 0, rect2, null);
}
}
Control findThemeControl () {
/* It is not possible to change the background of this control */
return this;
}
public Rectangle getClientArea () {
checkWidget ();
forceResize ();
RECT rect = new RECT ();
OS.GetClientRect (handle, rect);
OS.SendMessage (handle, OS.TCM_ADJUSTRECT, 0, rect);
int width = rect.right - rect.left;
int height = rect.bottom - rect.top;
return new Rectangle (rect.left, rect.top, width, height);
}
/**
* 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 TabItem getItem (int index) {
checkWidget ();
int count = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0);
if (!(0 <= index && index < count)) error (SWT.ERROR_INVALID_RANGE);
return items [index];
}
/**
* Returns the tab 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 tab item at the given point, or null if the point is not in a tab item
*
* @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>
*
* @since 3.4
*/
public TabItem getItem (Point point) {
checkWidget ();
if (point == null) error (SWT.ERROR_NULL_ARGUMENT);
TCHITTESTINFO pinfo = new TCHITTESTINFO ();
pinfo.x = point.x;
pinfo.y = point.y;
int index = (int)/*64*/OS.SendMessage (handle, OS.TCM_HITTEST, 0, pinfo);
if (index == -1) return null;
return items [index];
}
/**
* 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 (int)/*64*/OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0);
}
/**
* 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 TabItem [] getItems () {
checkWidget ();
int count = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0);
TabItem [] result = new TabItem [count];
System.arraycopy (items, 0, result, 0, count);
return result;
}
/**
* Returns an array of <code>TabItem</code>s that are currently
* selected in the receiver. An empty array indicates that no
* items are selected.
* <p>
* Note: This is not the actual structure used by the receiver
* to maintain its selection, so modifying the array will
* not affect the receiver.
* </p>
* @return an array representing the selection
*
* @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 TabItem [] getSelection () {
checkWidget ();
int index = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0);
if (index == -1) return new TabItem [0];
return new TabItem [] {items [index]};
}
/**
* Returns the zero-relative index of the item which is currently
* selected in the receiver, or -1 if no item is selected.
*
* @return the index of the selected item
*
* @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 getSelectionIndex () {
checkWidget ();
return (int)/*64*/OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0);
}
int imageIndex (Image image) {
if (image == null) return OS.I_IMAGENONE;
if (imageList == null) {
Rectangle bounds = image.getBounds ();
imageList = display.getImageList (style & SWT.RIGHT_TO_LEFT, bounds.width, bounds.height);
int index = imageList.add (image);
long /*int*/ hImageList = imageList.getHandle ();
OS.SendMessage (handle, OS.TCM_SETIMAGELIST, 0, hImageList);
return index;
}
int index = imageList.indexOf (image);
if (index == -1) {
index = imageList.add (image);
} else {
imageList.put (index, image);
}
return index;
}
/**
* 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 item 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 int indexOf (TabItem item) {
checkWidget ();
if (item == null) error (SWT.ERROR_NULL_ARGUMENT);
int count = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0);
for (int i=0; i<count; i++) {
if (items [i] == item) return i;
}
return -1;
}
Point minimumSize (int wHint, int hHint, boolean flushCache) {
Control [] children = _getChildren ();
int width = 0, height = 0;
for (int i=0; i<children.length; i++) {
Control child = children [i];
int index = 0;
int count = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0);
while (index < count) {
if (items [index].control == child) break;
index++;
}
if (index == count) {
Rectangle rect = child.getBounds ();
width = Math.max (width, rect.x + rect.width);
height = Math.max (height, rect.y + rect.height);
} else {
Point size = child.computeSize (wHint, hHint, flushCache);
width = Math.max (width, size.x);
height = Math.max (height, size.y);
}
}
return new Point (width, height);
}
boolean mnemonicHit (char key) {
for (int i=0; i<items.length; i++) {
TabItem item = items [i];
if (item != null) {
char ch = findMnemonic (item.getText ());
if (Character.toUpperCase (key) == Character.toUpperCase (ch)) {
if (forceFocus ()) {
if (i != getSelectionIndex ()) setSelection (i, true);
return true;
}
}
}
}
return false;
}
boolean mnemonicMatch (char key) {
for (int i=0; i<items.length; i++) {
TabItem item = items [i];
if (item != null) {
char ch = findMnemonic (item.getText ());
if (Character.toUpperCase (key) == Character.toUpperCase (ch)) {
return true;
}
}
}
return false;
}
void releaseChildren (boolean destroy) {
if (items != null) {
int count = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0);
for (int i=0; i<count; i++) {
TabItem item = items [i];
if (item != null && !item.isDisposed ()) {
item.release (false);
}
}
items = null;
}
super.releaseChildren (destroy);
}
void releaseWidget () {
super.releaseWidget ();
if (imageList != null) {
OS.SendMessage (handle, OS.TCM_SETIMAGELIST, 0, 0);
display.releaseImageList (imageList);
}
imageList = null;
}
void removeControl (Control control) {
super.removeControl (control);
int count = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0);
for (int i=0; i<count; i++) {
TabItem item = items [i];
if (item.control == control) item.setControl (null);
}
}
/**
* Removes the listener from the collection of listeners who will
* be notified when the user changes the receiver's selection.
*
* @param listener the listener which should no longer be notified
*
* @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>
*
* @see SelectionListener
* @see #addSelectionListener
*/
public void removeSelectionListener (SelectionListener listener) {
checkWidget ();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
if (eventTable == null) return;
eventTable.unhook (SWT.Selection, listener);
eventTable.unhook (SWT.DefaultSelection,listener);
}
void reskinChildren (int flags) {
if (items != null) {
int count = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0);
for (int i=0; i<count; i++) {
TabItem item = items [i];
if (item != null) item.reskin (flags);
}
}
super.reskinChildren (flags);
}
/**
* Sets the receiver's selection to the given item.
* The current selected is first cleared, then the new item is
* selected.
*
* @param item the item to select
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the item 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>
*
* @since 3.2
*/
public void setSelection (TabItem item) {
checkWidget ();
if (item == null) error (SWT.ERROR_NULL_ARGUMENT);
setSelection (new TabItem [] {item});
}
/**
* Sets the receiver's selection to be the given array of items.
* The current selected is first cleared, then the new items are
* selected.
*
* @param items the array of items
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the items array 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 void setSelection (TabItem [] items) {
checkWidget ();
if (items == null) error (SWT.ERROR_NULL_ARGUMENT);
if (items.length == 0) {
setSelection (-1, false);
} else {
for (int i=items.length-1; i>=0; --i) {
int index = indexOf (items [i]);
if (index != -1) setSelection (index, false);
}
}
}
public void setFont (Font font) {
checkWidget ();
Rectangle oldRect = getClientArea ();
super.setFont (font);
Rectangle newRect = getClientArea ();
if (!oldRect.equals (newRect)) {
sendResize ();
int index = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0);
if (index != -1) {
TabItem item = items [index];
Control control = item.control;
if (control != null && !control.isDisposed ()) {
control.setBounds (getClientArea ());
}
}
}
}
/**
* Selects the item at the given zero-relative index in the receiver.
* If the item at the index was already selected, it remains selected.
* The current selection is first cleared, then the new items are
* selected. Indices that are out of range are ignored.
*
* @param index the index of the item to select
*
* @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 setSelection (int index) {
checkWidget ();
int count = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETITEMCOUNT, 0, 0);
if (!(0 <= index && index < count)) return;
setSelection (index, false);
}
void setSelection (int index, boolean notify) {
int oldIndex = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0);
if (oldIndex == index) return;
if (oldIndex != -1) {
TabItem item = items [oldIndex];
Control control = item.control;
if (control != null && !control.isDisposed ()) {
control.setVisible (false);
}
}
OS.SendMessage (handle, OS.TCM_SETCURSEL, index, 0);
int newIndex = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0);
if (newIndex != -1) {
TabItem item = items [newIndex];
Control control = item.control;
if (control != null && !control.isDisposed ()) {
control.setBounds (getClientArea ());
control.setVisible (true);
}
if (notify) {
Event event = new Event ();
event.item = item;
sendSelectionEvent (SWT.Selection, event, true);
}
}
}
boolean updateTextDirection(int textDirection) {
if (super.updateTextDirection(textDirection)) {
for (int i = 0, n = items.length; i < n && items[i] != null; i++) {
items[i].updateTextDirection (textDirection);
}
return true;
}
return false;
}
String toolTipText (NMTTDISPINFO hdr) {
if ((hdr.uFlags & OS.TTF_IDISHWND) != 0) {
return null;
}
int index = (int)/*64*/hdr.idFrom;
long /*int*/ hwndToolTip = OS.SendMessage (handle, OS.TCM_GETTOOLTIPS, 0, 0);
if (hwndToolTip == hdr.hwndFrom) {
/*
* Bug in Windows. For some reason the reading order
* in NMTTDISPINFO is sometimes set incorrectly. The
* reading order seems to change every time the mouse
* enters the control from the top edge. The fix is
* to explicitly set TTF_RTLREADING.
*/
int flags = SWT.RIGHT_TO_LEFT | SWT.FLIP_TEXT_DIRECTION;
if ((style & flags) != 0 && (style & flags) != flags) {
hdr.uFlags |= OS.TTF_RTLREADING;
} else {
hdr.uFlags &= ~OS.TTF_RTLREADING;
}
if (toolTipText != null) return "";
if (0 <= index && index < items.length) {
TabItem item = items [index];
if (item != null) return item.toolTipText;
}
}
return super.toolTipText (hdr);
}
boolean traversePage (boolean next) {
int count = getItemCount ();
if (count <= 1) return false;
int index = getSelectionIndex ();
if (index == -1) {
index = 0;
} else {
int offset = (next) ? 1 : -1;
index = (index + offset + count) % count;
}
setSelection (index, true);
if (index == getSelectionIndex ()) {
OS.SendMessage (handle, OS.WM_CHANGEUISTATE, OS.UIS_INITIALIZE, 0);
return true;
}
return false;
}
void updateOrientation () {
super.updateOrientation ();
long /*int*/ hwndChild = OS.GetWindow (handle, OS.GW_CHILD);
while (hwndChild != 0) {
TCHAR buffer = new TCHAR (0, 128);
OS.GetClassName (hwndChild, buffer, buffer.length ());
String className = buffer.toString (0, buffer.strlen ());
if (className.equals ("msctls_updown32")) { //$NON-NLS-1$
int bits = OS.GetWindowLong (hwndChild, OS.GWL_EXSTYLE);
if ((style & SWT.RIGHT_TO_LEFT) != 0) {
bits |= OS.WS_EX_LAYOUTRTL;
} else {
bits &= ~OS.WS_EX_LAYOUTRTL;
}
bits &= ~OS.WS_EX_RTLREADING;
OS.SetWindowLong (hwndChild, OS.GWL_EXSTYLE, bits);
OS.InvalidateRect (hwndChild, null, true);
break;
}
hwndChild = OS.GetWindow (hwndChild, OS.GW_HWNDNEXT);
}
RECT rect = new RECT ();
OS.GetWindowRect (handle, rect);
int width = rect.right - rect.left, height = rect.bottom - rect.top;
OS.SetWindowPos (handle, 0, 0, 0, width - 1, height - 1, OS.SWP_NOMOVE | OS.SWP_NOZORDER);
OS.SetWindowPos (handle, 0, 0, 0, width, height, OS.SWP_NOMOVE | OS.SWP_NOZORDER);
if (imageList != null) {
Point size = imageList.getImageSize ();
display.releaseImageList (imageList);
imageList = display.getImageList (style & SWT.RIGHT_TO_LEFT, size.x, size.y);
long /*int*/ hImageList = imageList.getHandle ();
OS.SendMessage (handle, OS.TCM_SETIMAGELIST, 0, hImageList);
TCITEM tcItem = new TCITEM ();
tcItem.mask = OS.TCIF_IMAGE;
for (int i = 0; i < items.length; i++) {
TabItem item = items [i];
if (item == null) break;
Image image = item.image;
if (image != null) {
tcItem.iImage = imageIndex (image);
OS.SendMessage (handle, OS.TCM_SETITEM, i, tcItem);
}
}
}
}
int widgetStyle () {
/*
* Bug in Windows. Under certain circumstances,
* when TCM_SETITEM is used to change the text
* in a tab item, the tab folder draws on top
* of the client area. The fix is ensure that
* this cannot happen by setting WS_CLIPCHILDREN.
*/
int bits = super.widgetStyle () | OS.WS_CLIPCHILDREN;
if ((style & SWT.NO_FOCUS) != 0) bits |= OS.TCS_FOCUSNEVER;
if ((style & SWT.BOTTOM) != 0) bits |= OS.TCS_BOTTOM;
return bits | OS.TCS_TABS | OS.TCS_TOOLTIPS;
}
TCHAR windowClass () {
return TabFolderClass;
}
long /*int*/ windowProc () {
return TabFolderProc;
}
LRESULT WM_GETDLGCODE (long /*int*/ wParam, long /*int*/ lParam) {
LRESULT result = super.WM_GETDLGCODE (wParam, lParam);
/*
* Return DLGC_BUTTON so that mnemonics will be
* processed without needing to press the ALT key
* when the widget has focus.
*/
if (result != null) return result;
return new LRESULT (OS.DLGC_BUTTON | OS.DLGC_WANTARROWS);
}
LRESULT WM_GETOBJECT (long /*int*/ wParam, long /*int*/ lParam) {
/*
* Ensure that there is an accessible object created for this
* control because support for publishing the keyboard shortcut
* for page switching is implemented in the accessibility package.
*/
if (accessible == null) accessible = new_Accessible (this);
return super.WM_GETOBJECT (wParam, lParam);
}
LRESULT WM_KEYDOWN (long /*int*/ wParam, long /*int*/ lParam) {
LRESULT result = super.WM_KEYDOWN (wParam, lParam);
if (result != null) return result;
switch ((int)/*64*/wParam) {
case OS.VK_LEFT:
case OS.VK_RIGHT:
/*
* Bug in Windows. The behavior for the left and right keys is not
* changed if the orientation changes after the control was created.
* The fix is to replace VK_LEFT by VK_RIGHT and VK_RIGHT by VK_LEFT
* when the current orientation differs from the orientation used to
* create the control.
*/
boolean isRTL = (style & SWT.RIGHT_TO_LEFT) != 0;
if (isRTL != createdAsRTL) {
long /*int*/ code = callWindowProc (handle, OS.WM_KEYDOWN, wParam == OS.VK_RIGHT ? OS.VK_LEFT : OS.VK_RIGHT, lParam);
return new LRESULT (code);
}
break;
}
return result;
}
LRESULT WM_MOUSELEAVE (long /*int*/ wParam, long /*int*/ lParam) {
LRESULT result = super.WM_MOUSELEAVE (wParam, lParam);
if (result != null) return result;
/*
* Bug in Windows. On XP, when a tooltip is
* hidden due to a time out or mouse press,
* the tooltip remains active although no
* longer visible and won't show again until
* another tooltip becomes active. If there
* is only one tooltip in the window, it will
* never show again. The fix is to remove the
* current tooltip and add it again every time
* the mouse leaves the control.
*/
if (OS.COMCTL32_MAJOR >= 6) {
TOOLINFO lpti = new TOOLINFO ();
lpti.cbSize = TOOLINFO.sizeof;
long /*int*/ hwndToolTip = OS.SendMessage (handle, OS.TCM_GETTOOLTIPS, 0, 0);
if (OS.SendMessage (hwndToolTip, OS.TTM_GETCURRENTTOOL, 0, lpti) != 0) {
if ((lpti.uFlags & OS.TTF_IDISHWND) == 0) {
OS.SendMessage (hwndToolTip, OS.TTM_DELTOOL, 0, lpti);
OS.SendMessage (hwndToolTip, OS.TTM_ADDTOOL, 0, lpti);
}
}
}
return result;
}
LRESULT WM_NCHITTEST (long /*int*/ wParam, long /*int*/ lParam) {
LRESULT result = super.WM_NCHITTEST (wParam, lParam);
if (result != null) return result;
/*
* Feature in Windows. The tab control implements
* WM_NCHITTEST to return HTCLIENT when the cursor
* is inside the tab buttons. This causes mouse
* events like WM_MOUSEMOVE to be delivered to the
* parent. Also, tool tips for the tab control are
* never invoked because tool tips rely on mouse
* events to be delivered to the window that wants
* to display the tool tip. The fix is to call the
* default window proc that returns HTCLIENT when
* the mouse is in the client area.
*/
long /*int*/ hittest = OS.DefWindowProc (handle, OS.WM_NCHITTEST, wParam, lParam);
return new LRESULT (hittest);
}
LRESULT WM_NOTIFY (long /*int*/ wParam, long /*int*/ lParam) {
/*
* Feature in Windows. When the tab folder window
* proc processes WM_NOTIFY, it forwards this
* message to its parent. This is done so that
* children of this control that send this message
* type to their parent will notify not only
* this control but also the parent of this control,
* which is typically the application window and
* the window that is looking for the message.
* If the control did not forward the message,
* applications would have to subclass the control
* window to see the message. Because the control
* window is subclassed by SWT, the message
* is delivered twice, once by SWT and once when
* the message is forwarded by the window proc.
* The fix is to avoid calling the window proc
* for this control.
*/
LRESULT result = super.WM_NOTIFY (wParam, lParam);
if (result != null) return result;
return LRESULT.ZERO;
}
LRESULT WM_PARENTNOTIFY (long /*int*/ wParam, long /*int*/ lParam) {
LRESULT result = super.WM_PARENTNOTIFY (wParam, lParam);
if (result != null) return result;
/*
* Feature in Windows. Windows does not explicitly set the orientation of
* the buddy control. Instead, the orientation is inherited when WS_EX_LAYOUTRTL
* is specified for the tab folder. This means that when both WS_EX_LAYOUTRTL
* and WS_EX_NOINHERITLAYOUT are specified for the tab folder, the buddy control
* will not be oriented correctly. The fix is to explicitly set the orientation
* for the buddy control.
*
* NOTE: WS_EX_LAYOUTRTL is not supported on Windows NT.
*/
if (OS.WIN32_VERSION < OS.VERSION (4, 10)) return result;
if ((style & SWT.RIGHT_TO_LEFT) != 0) {
int code = OS.LOWORD (wParam);
switch (code) {
case OS.WM_CREATE: {
int id = OS.HIWORD (wParam);
long /*int*/ hwnd = lParam;
if (id == ID_UPDOWN) {
int bits = OS.GetWindowLong (hwnd, OS.GWL_EXSTYLE);
OS.SetWindowLong (hwnd, OS.GWL_EXSTYLE, bits | OS.WS_EX_LAYOUTRTL);
}
break;
}
}
}
return result;
}
LRESULT WM_SIZE (long /*int*/ wParam, long /*int*/ lParam) {
LRESULT result = super.WM_SIZE (wParam, lParam);
/*
* It is possible (but unlikely), that application
* code could have disposed the widget in the resize
* event. If this happens, end the processing of the
* Windows message by returning the result of the
* WM_SIZE message.
*/
if (isDisposed ()) return result;
int index = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0);
if (index != -1) {
TabItem item = items [index];
Control control = item.control;
if (control != null && !control.isDisposed ()) {
control.setBounds (getClientArea ());
}
}
return result;
}
LRESULT WM_WINDOWPOSCHANGING (long /*int*/ wParam, long /*int*/ lParam) {
LRESULT result = super.WM_WINDOWPOSCHANGING (wParam, lParam);
if (result != null) return result;
if (!OS.IsWindowVisible (handle)) return result;
WINDOWPOS lpwp = new WINDOWPOS ();
OS.MoveMemory (lpwp, lParam, WINDOWPOS.sizeof);
if ((lpwp.flags & (OS.SWP_NOSIZE | OS.SWP_NOREDRAW)) != 0) {
return result;
}
// TEMPORARY CODE
// if (OS.COMCTL32_MAJOR >= 6 && OS.IsAppThemed ()) {
// OS.InvalidateRect (handle, null, true);
// return result;
// }
int bits = OS.GetWindowLong (handle, OS.GWL_STYLE);
if ((bits & OS.TCS_MULTILINE) != 0) {
OS.InvalidateRect (handle, null, true);
return result;
}
RECT rect = new RECT ();
OS.SetRect (rect, 0, 0, lpwp.cx, lpwp.cy);
OS.SendMessage (handle, OS.WM_NCCALCSIZE, 0, rect);
int newWidth = rect.right - rect.left;
int newHeight = rect.bottom - rect.top;
OS.GetClientRect (handle, rect);
int oldWidth = rect.right - rect.left;
int oldHeight = rect.bottom - rect.top;
if (newWidth == oldWidth && newHeight == oldHeight) {
return result;
}
RECT inset = new RECT ();
OS.SendMessage (handle, OS.TCM_ADJUSTRECT, 0, inset);
int marginX = -inset.right, marginY = -inset.bottom;
if (newWidth != oldWidth) {
int left = oldWidth;
if (newWidth < oldWidth) left = newWidth;
OS.SetRect (rect, left - marginX, 0, newWidth, newHeight);
OS.InvalidateRect (handle, rect, true);
}
if (newHeight != oldHeight) {
int bottom = oldHeight;
if (newHeight < oldHeight) bottom = newHeight;
if (newWidth < oldWidth) oldWidth -= marginX;
OS.SetRect (rect, 0, bottom - marginY, oldWidth, newHeight);
OS.InvalidateRect (handle, rect, true);
}
return result;
}
LRESULT wmNotifyChild (NMHDR hdr, long /*int*/ wParam, long /*int*/ lParam) {
int code = hdr.code;
switch (code) {
case OS.TCN_SELCHANGE:
case OS.TCN_SELCHANGING:
TabItem item = null;
int index = (int)/*64*/OS.SendMessage (handle, OS.TCM_GETCURSEL, 0, 0);
if (index != -1) item = items [index];
if (item != null) {
Control control = item.control;
if (control != null && !control.isDisposed ()) {
if (code == OS.TCN_SELCHANGE) {
control.setBounds (getClientArea ());
}
control.setVisible (code == OS.TCN_SELCHANGE);
}
}
if (code == OS.TCN_SELCHANGE) {
Event event = new Event ();
event.item = item;
sendSelectionEvent (SWT.Selection, event, false);
}
}
return super.wmNotifyChild (hdr, wParam, lParam);
}
}