/*******************************************************************************
* Copyright (c) 2000, 2009 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.photon.*;
import org.eclipse.swt.graphics.*;
import org.eclipse.swt.events.*;
import org.eclipse.swt.*;
/**
* Instances of this class are selectable user interface
* objects that allow the user to enter and modify numeric
* values.
* <p>
* Note that although this class is a subclass of <code>Composite</code>,
* it does not make sense to add children to it, or set a layout on it.
* </p><p>
* <dl>
* <dt><b>Styles:</b></dt>
* <dd>READ_ONLY, WRAP</dd>
* <dt><b>Events:</b></dt>
* <dd>Selection, Modify, Verify</dd>
* </dl>
* </p><p>
* IMPORTANT: This class is <em>not</em> intended to be subclassed.
* </p>
*
* @see <a href="http://www.eclipse.org/swt/snippets/#spinner">Spinner 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>
*
* @since 3.1
* @noextend This class is not intended to be subclassed by clients.
*/
public class Spinner extends Composite {
/**
* the operating system limit for the number of characters
* that the text field in an instance of this class can hold
*
* @since 3.4
*/
public static final int LIMIT;
/*
* These values can be different on different platforms.
* Therefore they are not initialized in the declaration
* to stop the compiler from inlining.
*/
static {
LIMIT = 0x7FFF;
}
/**
* 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#READ_ONLY
* @see SWT#WRAP
* @see Widget#checkSubclass
* @see Widget#getStyle
*/
public Spinner (Composite parent, int style) {
super (parent, checkStyle (style));
}
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);
}
void createHandle (int index) {
state |= HANDLE;
int parentHandle = parent.parentingHandle ();
boolean hasBorder = (style & SWT.BORDER) != 0;
int textFlags = (style & SWT.READ_ONLY) != 0 ? 0 : OS.Pt_EDITABLE;
boolean wrap = (style & SWT.WRAP) != 0;
int [] args = new int [] {
OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS,
OS.Pt_ARG_NUMERIC_INCREMENT, 1, 0,
OS.Pt_ARG_NUMERIC_MIN, 0, 0,
OS.Pt_ARG_NUMERIC_MAX, 100, 0,
OS.Pt_ARG_TEXT_FLAGS, textFlags, OS.Pt_EDITABLE,
OS.Pt_ARG_FLAGS, hasBorder ? OS.Pt_HIGHLIGHTED : 0, OS.Pt_HIGHLIGHTED,
OS.Pt_ARG_NUMERIC_FLAGS, wrap ? OS.Pt_NUMERIC_WRAP : 0, OS.Pt_NUMERIC_WRAP,
};
handle = OS.PtCreateWidget (display.PtNumericInteger, parentHandle, args.length / 3, args);
if (handle == 0) error (SWT.ERROR_NO_HANDLES);
}
/**
* Adds the listener to the collection of listeners who will
* be notified when the receiver's text is modified, by sending
* it one of the messages defined in the <code>ModifyListener</code>
* interface.
*
* @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 ModifyListener
* @see #removeModifyListener
*/
public void addModifyListener (ModifyListener listener) {
checkWidget ();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
TypedListener typedListener = new TypedListener (listener);
addListener (SWT.Modify, typedListener);
}
/**
* 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 not called for texts.
* <code>widgetDefaultSelected</code> is typically called when ENTER is pressed in a single-line text.
* </p>
*
* @param listener the listener which should be notified when the control is selected by the user
*
* @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);
}
/**
* Adds the listener to the collection of listeners who will
* be notified when the receiver's text is verified, by sending
* it one of the messages defined in the <code>VerifyListener</code>
* interface.
*
* @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 VerifyListener
* @see #removeVerifyListener
*/
void addVerifyListener (VerifyListener listener) {
checkWidget();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
TypedListener typedListener = new TypedListener (listener);
addListener (SWT.Verify, typedListener);
}
public Point computeSize (int wHint, int hHint, boolean changed) {
checkWidget ();
int [] args = new int [] {
OS.Pt_ARG_TEXT_FONT, 0, 0,
OS.Pt_ARG_NUMERIC_MAX, 0, 0,
OS.Pt_ARG_NUMERIC_UPDOWN_WIDTH, 0, 0,
};
OS.PtGetResources (handle, args.length / 3, args);
int width = wHint;
int height = hHint;
if (wHint == SWT.DEFAULT || hHint == SWT.DEFAULT) {
int ptr = args [1];
int length = OS.strlen (ptr);
byte [] font = new byte [length + 1];
OS.memmove (font, ptr, length);
String string = String.valueOf (args [4]);
PhRect_t rect = new PhRect_t ();
int size = string.length ();
char [] buffer = new char [size];
string.getChars (0, size, buffer, 0);
OS.PfExtentWideText (rect, null, font, buffer, size * 2);
if (wHint == SWT.DEFAULT) width = rect.lr_x - rect.ul_x + 1;
if (hHint == SWT.DEFAULT) height = rect.lr_y - rect.ul_y + 1;
}
Rectangle trim = computeTrim (0, 0, width, height);
if (hHint == SWT.DEFAULT) {
trim.height = Math.max (trim.height, args [7] * 2);
}
return new Point (trim.width, trim.height);
}
public Rectangle computeTrim(int x, int y, int width, int height) {
int border = getBorderWidth ();
x -= border;
y -= border;
width += 2 * border;
height += 2 * border;
int [] args = new int [] {
OS.Pt_ARG_NUMERIC_SPACING, 0, 0, // 1
OS.Pt_ARG_NUMERIC_UPDOWN_WIDTH, 0, 0, // 4
// OS.Pt_ARG_NUMERIC_TEXT_BORDER, 0, 0, // 7
};
OS.PtGetResources (handle, args.length / 3, args);
/*
* Note: Pt_ARG_NUMERIC_TEXT_BORDER is defined in the
* documentation (default value 2) but is not defined
* in the include files on QNX 6.2.1.
*/
int textBorder = 2;
width += args [1] + args [4] + 2 * textBorder;
height += 2 * textBorder;
int textHandle = OS.PtWidgetChildBack (handle);
args = new int [] {
OS.Pt_ARG_MARGIN_WIDTH, 0, 0, // 1
OS.Pt_ARG_MARGIN_LEFT, 0, 0, // 4
OS.Pt_ARG_MARGIN_RIGHT, 0, 0, // 7
OS.Pt_ARG_TEXT_CURSOR_WIDTH, 0, 0, // 10
};
OS.PtGetResources (textHandle, args.length / 3, args);
width += args [1] + args [4] + args [7] + args [10];
return new Rectangle (x, y, width, height);
}
/**
* Copies the selected text.
* <p>
* The current selection is copied to the clipboard.
* </p>
*
* @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 copy () {
checkWidget ();
int textHandle = OS.PtWidgetChildBack (handle);
if (textHandle != 0) {
int [] start = new int [1], end = new int [1];
int length = OS.PtTextGetSelection (textHandle, start, end);
if (length <= 0) return;
int [] args = {OS.Pt_ARG_TEXT_STRING, 0, 0};
OS.PtGetResources (textHandle, args.length / 3, args);
byte[] buffer = new byte[length + 1];
OS.memmove (buffer, args [1] + start [0], length);
int ig = OS.PhInputGroup (0);
OS.PhClipboardCopyString((short)ig, buffer);
}
}
/**
* Cuts the selected text.
* <p>
* The current selection is first copied to the
* clipboard and then deleted from the widget.
* </p>
*
* @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 cut () {
checkWidget ();
if ((style & SWT.READ_ONLY) != 0) return;
int textHandle = OS.PtWidgetChildBack (handle);
if (textHandle != 0) {
int [] start = new int [1], end = new int [1];
int length = OS.PtTextGetSelection (textHandle, start, end);
if (length <= 0) return;
int [] args = {OS.Pt_ARG_TEXT_STRING, 0, 0};
OS.PtGetResources (textHandle, args.length / 3, args);
byte[] buffer = new byte[length + 1];
OS.memmove (buffer, args [1] + start [0], length);
int ig = OS.PhInputGroup (0);
OS.PhClipboardCopyString((short)ig, buffer);
buffer = new byte[0];
OS.PtTextModifyText (textHandle, start [0], end [0], start [0], buffer, buffer.length);
}
}
void deregister () {
super.deregister ();
int textHandle = OS.PtWidgetChildBack (handle);
WidgetTable.remove (textHandle);
}
int defaultBackground () {
return display.TEXT_BACKGROUND;
}
int defaultForeground () {
return display.TEXT_FOREGROUND;
}
/**
* Returns the number of decimal places used by the receiver.
*
* @return the digits
*
* @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 getDigits () {
checkWidget ();
return 0;
}
/**
* Returns the amount that the receiver's value will be
* modified by when the up/down arrows are pressed.
*
* @return the increment
*
* @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 getIncrement () {
checkWidget ();
int [] args = {OS.Pt_ARG_NUMERIC_INCREMENT, 0, 0};
OS.PtGetResources (handle, args.length / 3, args);
return args [1];
}
/**
* Returns the maximum value which the receiver will allow.
*
* @return the maximum
*
* @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 getMaximum () {
checkWidget ();
int [] args = {OS.Pt_ARG_NUMERIC_MAX, 0, 0};
OS.PtGetResources (handle, args.length / 3, args);
return args [1];
}
/**
* Returns the minimum value which the receiver will allow.
*
* @return the minimum
*
* @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 getMinimum () {
checkWidget ();
int [] args = {OS.Pt_ARG_NUMERIC_MIN, 0, 0};
OS.PtGetResources (handle, args.length / 3, args);
return args [1];
}
/**
* Returns the amount that the receiver's position will be
* modified by when the page up/down keys are pressed.
*
* @return the page increment
*
* @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 getPageIncrement () {
checkWidget ();
return 0;
}
/**
* Returns the <em>selection</em>, which is the receiver's position.
*
* @return 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 int getSelection () {
checkWidget ();
int [] args = {OS.Pt_ARG_NUMERIC_VALUE, 0, 0};
OS.PtGetResources (handle, args.length / 3, args);
return args [1];
}
/**
* Returns a string containing a copy of the contents of the
* receiver's text field, or an empty string if there are no
* contents.
*
* @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>
*
* @since 3.4
*/
public String getText () {
checkWidget ();
return "";
}
/**
* Returns the maximum number of characters that the receiver's
* text field is capable of holding. If this has not been changed
* by <code>setTextLimit()</code>, it will be the constant
* <code>Spinner.LIMIT</code>.
*
* @return the text limit
*
* @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 #LIMIT
*
* @since 3.4
*/
public int getTextLimit () {
checkWidget ();
return LIMIT;
}
boolean hasFocus () {
return OS.PtIsFocused (handle) != 0;
}
void hookEvents () {
super.hookEvents ();
int windowProc = display.windowProc;
OS.PtAddCallback (handle, OS.Pt_CB_NUMERIC_CHANGED, windowProc, OS.Pt_CB_NUMERIC_CHANGED);
}
/**
* Pastes text from clipboard.
* <p>
* The selected text is deleted from the widget
* and new text inserted from the clipboard.
* </p>
*
* @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 paste () {
checkWidget ();
if ((style & SWT.READ_ONLY) != 0) return;
int textHandle = OS.PtWidgetChildBack (handle);
if (textHandle != 0) {
int ig = OS.PhInputGroup (0);
int ptr = OS.PhClipboardPasteString((short)ig);
if (ptr == 0) return;
int length = OS.strlen (ptr);
int [] start = new int [1], end = new int [1];
OS.PtTextGetSelection (textHandle, start, end);
if (start [0] == -1) {
int [] args = {OS.Pt_ARG_CURSOR_POSITION, 0, 0};
OS.PtGetResources (textHandle, args.length / 3, args);
start [0] = end [0] = args [1];
}
OS.PtTextModifyText (textHandle, start [0], end [0], end [0], ptr, length);
OS.free(ptr);
}
}
int Pt_CB_NUMERIC_CHANGED (int widget, int info) {
if (info == 0) return OS.Pt_END;
PtCallbackInfo_t cbinfo = new PtCallbackInfo_t ();
OS.memmove (cbinfo, info, PtCallbackInfo_t.sizeof);
if (cbinfo.event == 0) return OS.Pt_END;
switch (cbinfo.reason_subtype) {
case OS.Pt_NUMERIC_CHANGED:
sendEvent (SWT.Modify);
break;
case OS.Pt_NUMERIC_UPDOWN_ACTIVATE:
case OS.Pt_NUMERIC_UPDOWN_REPEAT:
sendEvent (SWT.Selection);
break;
}
return OS.Pt_CONTINUE;
}
void register () {
super.register ();
int textHandle = OS.PtWidgetChildBack (handle);
WidgetTable.put (textHandle, this);
}
/**
* Removes the listener from the collection of listeners who will
* be notified when the receiver's text is modified.
*
* @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 ModifyListener
* @see #addModifyListener
*/
public void removeModifyListener (ModifyListener listener) {
checkWidget ();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
if (eventTable == null) return;
eventTable.unhook (SWT.Modify, listener);
}
/**
* 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);
}
/**
* Removes the listener from the collection of listeners who will
* be notified when the control is verified.
*
* @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 VerifyListener
* @see #addVerifyListener
*/
void removeVerifyListener (VerifyListener listener) {
checkWidget ();
if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
if (eventTable == null) return;
eventTable.unhook (SWT.Verify, listener);
}
/**
* Sets the number of decimal places used by the receiver.
* <p>
* The digit setting is used to allow for floating point values in the receiver.
* For example, to set the selection to a floating point value of 1.37 call setDigits() with
* a value of 2 and setSelection() with a value of 137. Similarly, if getDigits() has a value
* of 2 and getSelection() returns 137 this should be interpreted as 1.37. This applies to all
* numeric APIs.
* </p>
*
* @param value the new digits (must be greater than or equal to zero)
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_INVALID_ARGUMENT - if the value is less than zero</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 setDigits (int value) {
checkWidget ();
}
/**
* Sets the amount that the receiver's value will be
* modified by when the up/down arrows are pressed to
* the argument, which must be at least one.
*
* @param value the new increment (must be greater than zero)
*
* @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 setIncrement (int value) {
checkWidget ();
if (value < 1) return;
OS.PtSetResource (handle, OS.Pt_ARG_NUMERIC_INCREMENT, value, 0);
}
/**
* Sets the maximum value that the receiver will allow. This new
* value will be ignored if it is less than the receiver's current
* minimum value. If the new maximum is applied then the receiver's
* selection value will be adjusted if necessary to fall within its new range.
*
* @param value the new maximum, which must be greater than or equal to the current minimum
*
* @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 setMaximum (int value) {
checkWidget ();
if (value < 0) return;
OS.PtSetResource (handle, OS.Pt_ARG_NUMERIC_MAX, value, 0);
}
/**
* Sets the minimum value that the receiver will allow. This new
* value will be ignored if it is greater than the receiver's
* current maximum value. If the new minimum is applied then the receiver's
* selection value will be adjusted if necessary to fall within its new range.
*
* @param value the new minimum, which must be less than or equal to the current maximum
*
* @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 setMinimum (int value) {
checkWidget ();
if (value < 0) return;
OS.PtSetResource (handle, OS.Pt_ARG_NUMERIC_MIN, value, 0);
}
/**
* Sets the amount that the receiver's position will be
* modified by when the page up/down keys are pressed
* to the argument, which must be at least one.
*
* @param value the page increment (must be greater than zero)
*
* @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 setPageIncrement (int value) {
checkWidget ();
if (value < 1) return;
}
/**
* Sets the <em>selection</em>, which is the receiver's
* position, to the argument. If the argument is not within
* the range specified by minimum and maximum, it will be
* adjusted to fall within this range.
*
* @param value the new selection (must be zero or greater)
*
* @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 value) {
checkWidget ();
OS.PtSetResource (handle, OS.Pt_ARG_NUMERIC_VALUE, value, 0);
}
/**
* Sets the maximum number of characters that the receiver's
* text field is capable of holding to be the argument.
* <p>
* To reset this value to the default, use <code>setTextLimit(Spinner.LIMIT)</code>.
* Specifying a limit value larger than <code>Spinner.LIMIT</code> sets the
* receiver's limit to <code>Spinner.LIMIT</code>.
* </p>
* @param limit new text limit
*
* @exception IllegalArgumentException <ul>
* <li>ERROR_CANNOT_BE_ZERO - if the limit is zero</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 #LIMIT
*
* @since 3.4
*/
public void setTextLimit (int limit) {
checkWidget ();
if (limit == 0) error (SWT.ERROR_CANNOT_BE_ZERO);
}
/**
* Sets the receiver's selection, minimum value, maximum
* value, digits, increment and page increment all at once.
* <p>
* Note: This is similar to setting the values individually
* using the appropriate methods, but may be implemented in a
* more efficient fashion on some platforms.
* </p>
*
* @param selection the new selection value
* @param minimum the new minimum value
* @param maximum the new maximum value
* @param digits the new digits value
* @param increment the new increment value
* @param pageIncrement the new pageIncrement value
*
* @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 setValues (int selection, int minimum, int maximum, int digits, int increment, int pageIncrement) {
checkWidget ();
if (minimum < 0) return;
if (maximum <= minimum) return;
if (digits < 0) return;
if (increment < 1) return;
if (pageIncrement < 1) return;
selection = Math.min (Math.max (minimum, selection), maximum);
int [] args = new int [] {
OS.Pt_ARG_NUMERIC_INCREMENT, increment, 0,
OS.Pt_ARG_NUMERIC_MIN, minimum, 0,
OS.Pt_ARG_NUMERIC_MAX, maximum, 0,
OS.Pt_ARG_NUMERIC_VALUE, selection, 0
};
OS.PtSetResources (handle, args.length / 3, args);
}
boolean translateTraversal (int key_sym, PhKeyEvent_t phEvent) {
boolean translated = super.translateTraversal (key_sym, phEvent);
if (!translated && key_sym == OS.Pk_Return) {
postEvent (SWT.DefaultSelection);
return false;
}
return translated;
}
int widgetClass () {
return OS.PtNumericInteger ();
}
}