/*******************************************************************************
* Copyright (c) 2000, 2011 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.photon.*;
import org.eclipse.swt.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.events.*;
/**
* Instances of this class represent a selectable user interface object that
* issues notification when pressed and released.
* <dl>
* <dt><b>Styles:</b></dt>
* <dd>ARROW, CHECK, PUSH, RADIO, TOGGLE, FLAT</dd>
* <dd>UP, DOWN, LEFT, RIGHT, CENTER</dd>
* <dt><b>Events:</b></dt>
* <dd>Selection</dd>
* </dl>
* <p>
* Note: Only one of the styles ARROW, CHECK, PUSH, RADIO, and TOGGLE
* may be specified.
* </p><p>
* Note: Only one of the styles LEFT, RIGHT, and CENTER may be specified.
* </p><p>
* Note: Only one of the styles UP, DOWN, LEFT, and RIGHT may be specified
* when the ARROW style is specified.
* </p><p>
* IMPORTANT: This class is <em>not</em> intended to be subclassed.
* </p>
*
* @see <a href="http://www.eclipse.org/swt/snippets/#button">Button 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 Button extends Control {
String text = "";
Image image;
boolean grayed;
/**
* 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#ARROW
* @see SWT#CHECK
* @see SWT#PUSH
* @see SWT#RADIO
* @see SWT#TOGGLE
* @see SWT#FLAT
* @see SWT#UP
* @see SWT#DOWN
* @see SWT#LEFT
* @see SWT#RIGHT
* @see SWT#CENTER
* @see Widget#checkSubclass
* @see Widget#getStyle
*/
public Button (Composite parent, int style) {
super (parent, checkStyle (style));
}
static int checkStyle (int style) {
style = checkBits (style, SWT.PUSH, SWT.ARROW, SWT.CHECK, SWT.RADIO, SWT.TOGGLE, 0);
if ((style & (SWT.PUSH | SWT.TOGGLE)) != 0) {
return checkBits (style, SWT.CENTER, SWT.LEFT, SWT.RIGHT, 0, 0, 0);
}
if ((style & (SWT.CHECK | SWT.RADIO)) != 0) {
return checkBits (style, SWT.LEFT, SWT.RIGHT, SWT.CENTER, 0, 0, 0);
}
if ((style & SWT.ARROW) != 0) {
style |= SWT.NO_FOCUS;
return checkBits (style, SWT.UP, SWT.DOWN, SWT.LEFT, SWT.RIGHT, 0, 0);
}
return style;
}
/**
* Adds the listener to the collection of listeners who will
* be notified when the control is selected by the user, by sending
* it one of the messages defined in the <code>SelectionListener</code>
* interface.
* <p>
* <code>widgetSelected</code> is called when the control is selected by the user.
* <code>widgetDefaultSelected</code> is not called.
* </p>
* <p>
* When the <code>SWT.RADIO</code> style bit is set, the <code>widgetSelected</code> method is
* also called when the receiver loses selection because another item in the same radio group
* was selected by the user. During <code>widgetSelected</code> the application can use
* <code>getSelection()</code> to determine the current selected state of the receiver.
* </p>
*
* @param listener the listener which should 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 #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);
}
void click () {
click (handle);
}
public Point computeSize (int wHint, int hHint, boolean changed) {
checkWidget();
int border = getBorderWidth ();
int width = border * 2, height = border * 2;
if ((style & SWT.ARROW) != 0) {
if (wHint != SWT.DEFAULT) width += wHint;
else width = 17;
if (hHint != SWT.DEFAULT) height += hHint;
else height = 17;
return new Point (width, height);
}
PhDim_t dim = new PhDim_t();
if (!OS.PtWidgetIsRealized (handle)) OS.PtExtentWidget (handle);
OS.PtWidgetPreferredSize(handle, dim);
width = dim.w; height = dim.h;
if (wHint != SWT.DEFAULT || hHint != SWT.DEFAULT) {
int [] args = {
OS.Pt_ARG_MARGIN_LEFT, 0, 0, // 1
OS.Pt_ARG_MARGIN_RIGHT, 0, 0, // 4
OS.Pt_ARG_MARGIN_TOP, 0, 0, // 7
OS.Pt_ARG_MARGIN_BOTTOM, 0, 0, // 10
// OS.Pt_ARG_MARGIN_WIDTH, 0, 0, // 13
// OS.Pt_ARG_MARGIN_HEIGHT, 0, 0, // 16
};
OS.PtGetResources (handle, args.length / 3, args);
PhArea_t area = new PhArea_t ();
area.size_w = (short) wHint;
area.size_h = (short) hHint;
/*
* This code is intentionally commented. Bug compatible with Windows.
*/
// PhRect_t rect = new PhRect_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 + /*(args [13] * 2)*/ + args [1] + args [4];
}
if (hHint != SWT.DEFAULT) {
height = area.size_h + /*(args [16] * 2)*/ + args [7] + args [10];
}
}
return new Point (width, height);
}
void createHandle (int index) {
state |= HANDLE;
int parentHandle = parent.parentingHandle ();
/* ARROW button */
if ((style & SWT.ARROW) != 0) {
int [] args = {
OS.Pt_ARG_FLAGS, 0, OS.Pt_GETS_FOCUS,
OS.Pt_ARG_BASIC_FLAGS, OS.Pt_HORIZONTAL_GRADIENT, OS.Pt_STATIC_GRADIENT | OS.Pt_HORIZONTAL_GRADIENT,
OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS,
};
handle = OS.PtCreateWidget (display.PtButton, parentHandle, args.length / 3, args);
if (handle == 0) error (SWT.ERROR_NO_HANDLES);
return;
}
/* Compute alignment */
int alignment = OS.Pt_LEFT;
if ((style & SWT.CENTER) != 0) alignment = OS.Pt_CENTER;
if ((style & SWT.RIGHT) != 0) alignment = OS.Pt_RIGHT;
/* CHECK or RADIO button */
if ((style & (SWT.CHECK | SWT.RADIO)) != 0) {
int [] args = {
OS.Pt_ARG_HORIZONTAL_ALIGNMENT, alignment, 0,
OS.Pt_ARG_INDICATOR_TYPE, (style & SWT.CHECK) != 0 ? OS.Pt_N_OF_MANY : OS.Pt_ONE_OF_MANY, 0,
OS.Pt_ARG_FILL_COLOR, display.WIDGET_BACKGROUND, 0,
OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS,
};
handle = OS.PtCreateWidget (display.PtToggleButton, parentHandle, args.length / 3, args);
if (handle == 0) error (SWT.ERROR_NO_HANDLES);
return;
}
/* PUSH or TOGGLE button */
int [] args = {
OS.Pt_ARG_FLAGS, (style & SWT.TOGGLE) != 0 ? OS.Pt_TOGGLE : 0, OS.Pt_TOGGLE,
OS.Pt_ARG_HORIZONTAL_ALIGNMENT, alignment, 0,
OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS,
};
handle = OS.PtCreateWidget (display.PtButton, parentHandle, args.length / 3, args);
if (handle == 0) error (SWT.ERROR_NO_HANDLES);
}
void drawWidget (int widget, int damage) {
super.drawWidget (widget, damage);
if ((style & SWT.ARROW) != 0) {
PhRect_t rect = new PhRect_t ();
OS.PtCalcCanvas (handle, rect);
int flags = 0;
if ((style & SWT.RIGHT) != 0) flags = 2;
if ((style & SWT.LEFT) != 0) flags = 1;
if ((style & SWT.DOWN) != 0) flags = 8;
if ((style & SWT.UP) != 0) flags = 4;
OS.PgDrawArrow (rect, (short)0, 0x000000, flags);
}
}
/**
* Returns a value which describes the position of the
* text or image in the receiver. The value will be one of
* <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code>
* unless the receiver is an <code>ARROW</code> button, in
* which case, the alignment will indicate the direction of
* the arrow (one of <code>LEFT</code>, <code>RIGHT</code>,
* <code>UP</code> or <code>DOWN</code>).
*
* @return the alignment
*
* @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 getAlignment () {
checkWidget();
if ((style & SWT.ARROW) != 0) {
if ((style & SWT.UP) != 0) return SWT.UP;
if ((style & SWT.DOWN) != 0) return SWT.DOWN;
if ((style & SWT.LEFT) != 0) return SWT.LEFT;
if ((style & SWT.RIGHT) != 0) return SWT.RIGHT;
return SWT.UP;
}
if ((style & SWT.LEFT) != 0) return SWT.LEFT;
if ((style & SWT.CENTER) != 0) return SWT.CENTER;
if ((style & SWT.RIGHT) != 0) return SWT.RIGHT;
return SWT.LEFT;
}
boolean getDefault () {
if ((style & SWT.PUSH) == 0) return false;
int [] args = {OS.Pt_ARG_BEVEL_CONTRAST, 0, 0};
OS.PtGetResources (handle, args.length / 3, args);
return args [1] == 100;
}
/**
* Returns <code>true</code> if the receiver is grayed,
* and false otherwise. When the widget does not have
* the <code>CHECK</code> style, return false.
*
* @return the grayed state of the checkbox
*
* @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 boolean getGrayed () {
checkWidget();
if ((style & SWT.CHECK) == 0) return false;
return grayed;
}
/**
* Returns the receiver's image if it has one, or null
* if it does not.
*
* @return the receiver's image
*
* @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 Image getImage () {
checkWidget();
return image;
}
/**
* Returns <code>true</code> if the receiver is selected,
* and false otherwise.
* <p>
* When the receiver is of type <code>CHECK</code> or <code>RADIO</code>,
* it is selected when it is checked. When it is of type <code>TOGGLE</code>,
* it is selected when it is pushed in. If the receiver is of any other type,
* this method returns false.
*
* @return the selection 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 boolean getSelection () {
checkWidget();
if ((style & (SWT.CHECK | SWT.RADIO | SWT.TOGGLE)) == 0) return false;
return (OS.PtWidgetFlags (handle) & OS.Pt_SET) != 0;
}
String getNameText () {
return getText ();
}
/**
* Returns the receiver's text, which will be an empty
* string if it has never been set or if the receiver is
* an <code>ARROW</code> button.
*
* @return the receiver's 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 getText () {
checkWidget();
if ((style & SWT.ARROW) != 0) return "";
return text;
}
void hookEvents () {
super.hookEvents ();
int windowProc = display.windowProc;
OS.PtAddCallback (handle, OS.Pt_CB_ACTIVATE, windowProc, OS.Pt_CB_ACTIVATE);
}
int hotkeyProc (int widget, int data, int info) {
if (setFocus ()) click ();
return OS.Pt_CONTINUE;
}
int Pt_CB_ACTIVATE (int widget, int info) {
if ((style & SWT.RADIO) != 0) {
if ((parent.getStyle () & SWT.NO_RADIO_GROUP) == 0) {
selectRadio ();
}
}
postEvent (SWT.Selection);
return OS.Pt_CONTINUE;
}
int Pt_CB_GOT_FOCUS (int widget, int info) {
int result = super.Pt_CB_GOT_FOCUS (widget, info);
// widget could be disposed at this point
if (handle == 0) return result;
if ((style & SWT.PUSH) == 0) return result;
getShell ().setDefaultButton (this, false);
return result;
}
int Pt_CB_LOST_FOCUS (int widget, int info) {
int result = super.Pt_CB_LOST_FOCUS (widget, info);
// widget could be disposed at this point
if (handle == 0) return result;
if ((style & SWT.PUSH) == 0) return result;
if (getDefault ()) {
getShell ().setDefaultButton (null, false);
}
return result;
}
void releaseWidget () {
super.releaseWidget ();
image = null;
}
/**
* Removes the listener from the collection of listeners who will
* be notified when the control is selected by the user.
*
* @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 selectRadio () {
/*
* This code is intentionally commented. When two groups
* of radio buttons with the same parent are separated by
* another control, the correct behavior should be that
* the two groups act independently. This is consistent
* with radio tool and menu items. The commented code
* implements this behavior.
*/
// int index = 0;
// Control [] children = parent._getChildren ();
// while (index < children.length && children [index] != this) index++;
// int i = index - 1;
// while (i >= 0 && children [i].setRadioSelection (false)) --i;
// int j = index + 1;
// while (j < children.length && children [j].setRadioSelection (false)) j++;
// setSelection (true);
Control [] children = parent._getChildren ();
for (int i=0; i<children.length; i++) {
Control child = children [i];
if (this != child) child.setRadioSelection (false);
}
setSelection (true);
}
/**
* Controls how text, images and arrows will be displayed
* in the receiver. The argument should be one of
* <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code>
* unless the receiver is an <code>ARROW</code> button, in
* which case, the argument indicates the direction of
* the arrow (one of <code>LEFT</code>, <code>RIGHT</code>,
* <code>UP</code> or <code>DOWN</code>).
*
* @param alignment the new alignment
*
* @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 setAlignment (int alignment) {
checkWidget();
if ((style & SWT.ARROW) != 0) {
if ((style & (SWT.UP | SWT.DOWN | SWT.LEFT | SWT.RIGHT)) == 0) return;
style &= ~(SWT.UP | SWT.DOWN | SWT.LEFT | SWT.RIGHT);
style |= alignment & (SWT.UP | SWT.DOWN | SWT.LEFT | SWT.RIGHT);
OS.PtDamageWidget (handle);
return;
}
if ((alignment & (SWT.LEFT | SWT.RIGHT | SWT.CENTER)) == 0) return;
style &= ~(SWT.LEFT | SWT.RIGHT | SWT.CENTER);
style |= alignment & (SWT.LEFT | SWT.RIGHT | SWT.CENTER);
int align = OS.Pt_LEFT;
if ((style & SWT.CENTER) != 0) align = OS.Pt_CENTER;
if ((style & SWT.RIGHT) != 0) align = OS.Pt_RIGHT;
OS.PtSetResource (handle, OS.Pt_ARG_HORIZONTAL_ALIGNMENT, align, 0);
}
void setDefault (boolean value) {
if ((style & SWT.PUSH) == 0) return;
if (getShell ().parent == null) return;
OS.PtSetResource (handle, OS.Pt_ARG_BEVEL_CONTRAST, value ? 100 : 20, 0);
}
boolean setRadioSelection (boolean value) {
if ((style & SWT.RADIO) == 0) return false;
if (getSelection () != value) {
setSelection (value);
postEvent (SWT.Selection);
}
return true;
}
/**
* Sets the selection state of the receiver, if it is of type <code>CHECK</code>,
* <code>RADIO</code>, or <code>TOGGLE</code>.
*
* <p>
* When the receiver is of type <code>CHECK</code> or <code>RADIO</code>,
* it is selected when it is checked. When it is of type <code>TOGGLE</code>,
* it is selected when it is pushed in.
*
* @param selected the new selection 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 setSelection (boolean selected) {
checkWidget();
if ((style & (SWT.CHECK | SWT.RADIO | SWT.TOGGLE)) == 0) return;
OS.PtSetResource (handle, OS.Pt_ARG_FLAGS, selected ? OS.Pt_SET : 0, OS.Pt_SET);
}
/**
* Sets the grayed state of the receiver. This state change
* only applies if the control was created with the SWT.CHECK
* style.
*
* @param grayed the new grayed 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>
*
* @since 3.4
*/
public void setGrayed (boolean grayed) {
checkWidget ();
if ((style & SWT.CHECK) == 0) return;
this.grayed = grayed;
}
/**
* Sets the receiver's image to the argument, which may be
* <code>null</code> indicating that no image should be displayed.
* <p>
* Note that a Button can display an image and text simultaneously
* on Windows (starting with XP), GTK+ and OSX. On other platforms,
* a Button that has an image and text set into it will display the
* image or text that was set most recently.
* </p>
* @param image the image to display on the receiver (may be <code>null</code>)
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_INVALID_ARGUMENT - if the image 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 void setImage (Image image) {
checkWidget();
if ((style & SWT.ARROW) != 0) return;
this.image = image;
int imageHandle = 0;
if (image != null) {
if (image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT);
imageHandle = copyPhImage (image.handle);
}
int [] args = {
OS.Pt_ARG_LABEL_IMAGE, imageHandle, 0,
OS.Pt_ARG_LABEL_TYPE, OS.Pt_IMAGE, 0
};
OS.PtSetResources (handle, args.length / 3, args);
if (imageHandle != 0) OS.free (imageHandle);
}
/**
* Sets the receiver's text.
* <p>
* This method sets the button label. The label may include
* the mnemonic character but must not contain line delimiters.
* </p>
* <p>
* Mnemonics are indicated by an '&' that causes the next
* character to be the mnemonic. When the user presses a
* key sequence that matches the mnemonic, a selection
* event occurs. On most platforms, the mnemonic appears
* underlined but may be emphasized in a platform specific
* manner. The mnemonic indicator character '&' can be
* escaped by doubling it in the string, causing a single
* '&' to be displayed.
* </p><p>
* Note that a Button can display an image and text simultaneously
* on Windows (starting with XP), GTK+ and OSX. On other platforms,
* a Button that has an image and text set into it will display the
* image or text that was set most recently.
* </p>
* @param string the new text
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_NULL_ARGUMENT - if the text 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 setText (String string) {
checkWidget();
if (string == null) error (SWT.ERROR_NULL_ARGUMENT);
if ((style & SWT.ARROW) != 0) return;
text = string;
char [] text = new char [string.length ()];
string.getChars (0, text.length, text, 0);
char mnemonic = fixMnemonic (text);
byte [] buffer = Converter.wcsToMbcs (null, text, true);
int ptr1 = OS.malloc (buffer.length);
OS.memmove (ptr1, buffer, buffer.length);
int ptr2 = 0;
if (mnemonic != 0) {
byte [] buffer2 = Converter.wcsToMbcs (null, new char []{mnemonic}, true);
ptr2 = OS.malloc (buffer2.length);
OS.memmove (ptr2, buffer2, buffer2.length);
}
replaceMnemonic (mnemonic, true, true);
int [] args = {
OS.Pt_ARG_TEXT_STRING, ptr1, 0,
OS.Pt_ARG_LABEL_TYPE, OS.Pt_Z_STRING, 0,
OS.Pt_ARG_ACCEL_KEY, ptr2, 0,
};
OS.PtSetResources (handle, args.length / 3, args);
OS.free (ptr1);
OS.free (ptr2);
}
int traversalCode (int key_sym, PhKeyEvent_t ke) {
int code = super.traversalCode (key_sym, ke);
if ((style & SWT.RADIO) != 0) code |= SWT.TRAVERSE_ARROW_NEXT | SWT.TRAVERSE_ARROW_PREVIOUS;
return code;
}
int widgetClass () {
if ((style & (SWT.CHECK | SWT.RADIO)) != 0) return OS.PtToggleButton ();
return OS.PtButton ();
}
}