| /******************************************************************************* |
| * 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.carbon.CFRange; |
| import org.eclipse.swt.internal.carbon.ControlEditTextSelectionRec; |
| import org.eclipse.swt.internal.carbon.OS; |
| import org.eclipse.swt.internal.carbon.Rect; |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.events.*; |
| import org.eclipse.swt.graphics.*; |
| |
| /** |
| * 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 { |
| int textHandle, buttonHandle; |
| int textVisibleRgn, buttonVisibleRgn; |
| int increment = 1; |
| int pageIncrement = 10; |
| int digits = 0; |
| int textLimit = LIMIT; |
| static int GAP = 3; |
| |
| /** |
| * 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 = 0x7FFFFFFF; |
| } |
| |
| /** |
| * 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)); |
| } |
| |
| int actionProc (int theControl, int partCode) { |
| int result = super.actionProc (theControl, partCode); |
| if (result == OS.noErr) return result; |
| if (theControl == buttonHandle) { |
| boolean [] parseFail = new boolean [1]; |
| int value = getSelectionText (parseFail); |
| if (parseFail [0]) { |
| value = OS.GetControl32BitValue (buttonHandle); |
| } |
| int newValue = value; |
| switch (partCode) { |
| case OS.kControlUpButtonPart: |
| newValue += increment; |
| break; |
| case OS.kControlDownButtonPart: |
| newValue -= increment; |
| break; |
| } |
| int max = OS.GetControl32BitMaximum (buttonHandle); |
| int min = OS.GetControl32BitMinimum (buttonHandle); |
| if ((style & SWT.WRAP) != 0) { |
| if (newValue > max) newValue = min; |
| if (newValue < min) newValue = max; |
| } |
| newValue = Math.min (Math.max (min, newValue), max); |
| if (value != newValue) setSelection (newValue, true, true, true); |
| } |
| return result; |
| } |
| |
| /** |
| * 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); |
| } |
| |
| static int checkStyle (int style) { |
| /* |
| * Even though it is legal to create this widget |
| * with scroll bars, they serve no useful purpose |
| * because they do not automatically scroll the |
| * widget's client area. The fix is to clear |
| * the SWT style. |
| */ |
| return style & ~(SWT.H_SCROLL | SWT.V_SCROLL); |
| } |
| |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| public Point computeSize (int wHint, int hHint, boolean changed) { |
| checkWidget (); |
| int width = 0, height = 0; |
| int max = OS.GetControl32BitMaximum (buttonHandle); |
| String string = String.valueOf (max); |
| if (digits > 0) { |
| StringBuffer buffer = new StringBuffer (); |
| buffer.append (string); |
| buffer.append (getDecimalSeparator ()); |
| int count = digits - string.length (); |
| while (count >= 0) { |
| buffer.append ("0"); |
| count--; |
| } |
| string = buffer.toString (); |
| } |
| char [] buffer = new char [string.length ()]; |
| string.getChars (0, buffer.length, buffer, 0); |
| int ptr = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); |
| Point size = textExtent (ptr, 0); |
| if (ptr != 0) OS.CFRelease (ptr); |
| width = Math.max (width, size.x); |
| height = Math.max (height, size.y); |
| int [] metric = new int [1]; |
| OS.GetThemeMetric (OS.kThemeMetricEditTextWhitespace, metric); |
| width += metric [0] * 2; |
| if (wHint != SWT.DEFAULT) width = wHint; |
| if (hHint != SWT.DEFAULT) height = hHint; |
| Rectangle trim = computeTrim (0, 0, width, height); |
| OS.GetThemeMetric (OS.kThemeMetricLittleArrowsHeight, metric); |
| trim.height = Math.max (trim.height, metric [0]); |
| return new Point (trim.width, trim.height); |
| } |
| |
| public Rectangle computeTrim (int x, int y, int width, int height) { |
| checkWidget (); |
| Rect inset = inset (); |
| width += inset.left + inset.right; |
| height += inset.top + inset.bottom; |
| int [] outMetric = new int [1]; |
| OS.GetThemeMetric (OS.kThemeMetricLittleArrowsWidth, outMetric); |
| width += outMetric [0] + GAP; |
| 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 (); |
| short [] selection = new short [2]; |
| if (OS.GetControlData (textHandle, (short)OS.kControlEntireControl, OS.kControlEditTextSelectionTag, 4, selection, null) != OS.noErr) return; |
| if (selection [0] == selection [1]) return; |
| int [] actualSize = new int [1]; |
| int [] ptr = new int [1]; |
| if (OS.GetControlData (textHandle, (short)OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, ptr, actualSize) != OS.noErr) return; |
| CFRange range = new CFRange (); |
| range.location = selection [0]; |
| range.length = selection [1] - selection [0]; |
| char [] buffer= new char [range.length]; |
| OS.CFStringGetCharacters (ptr [0], range, buffer); |
| OS.CFRelease (ptr [0]); |
| copyToClipboard (buffer); |
| } |
| |
| void createHandle () { |
| int window = OS.GetControlOwner (parent.handle); |
| int actionProc = display.actionProc; |
| int features = OS.kControlSupportsEmbedding | OS.kControlSupportsFocus; |
| int [] outControl = new int [1]; |
| OS.CreateUserPaneControl (window, null, features, outControl); |
| if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES); |
| handle = outControl [0]; |
| |
| OS.CreateLittleArrowsControl (window, null, 0, 0, 100, 1, outControl); |
| if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES); |
| buttonHandle = outControl [0]; |
| OS.SetControlAction (buttonHandle, actionProc); |
| |
| OS.CreateEditUnicodeTextControl (window, null, 0, false, null, outControl); |
| if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES); |
| textHandle = outControl [0]; |
| OS.SetControlData (textHandle, OS.kControlEntireControl, OS.kControlEditTextSingleLineTag, 1, new byte [] {1}); |
| if ((style & SWT.READ_ONLY) != 0) { |
| OS.SetControlData (textHandle, OS.kControlEntireControl, OS.kControlEditTextLockedTag, 1, new byte [] {1}); |
| } |
| setSelection (0, false, true, false); |
| } |
| |
| /** |
| * 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; |
| short [] selection = new short [2]; |
| if (OS.GetControlData (textHandle, (short)OS.kControlEntireControl, OS.kControlEditTextSelectionTag, 4, selection, null) != OS.noErr) return; |
| if (selection [0] == selection [1]) return; |
| char [] buffer = setText ("", selection [0], selection [1], true); |
| if (buffer != null) { |
| copyToClipboard (buffer); |
| } |
| } |
| |
| void deregister () { |
| super.deregister (); |
| display.removeWidget(textHandle); |
| display.removeWidget(buttonHandle); |
| } |
| |
| void drawBackground (int control, int context) { |
| if (control == textHandle) { |
| fillBackground (control, context, null); |
| } else { |
| parent.fillBackground (control, context, null); |
| } |
| } |
| |
| int focusHandle () { |
| return textHandle; |
| } |
| |
| /** |
| * 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 digits; |
| } |
| |
| String getDecimalSeparator () { |
| int locale = OS.CFLocaleCopyCurrent (); |
| int formatter = OS.CFNumberFormatterCreate (OS.kCFAllocatorDefault, locale, OS.kCFNumberFormatterDecimalStyle); |
| int key = OS.kCFNumberFormatterDecimalSeparator (); |
| int result = OS.CFNumberFormatterCopyProperty (formatter, key); |
| CFRange range = new CFRange (); |
| range.location = 0; |
| range.length = OS.CFStringGetLength (result); |
| char [] buffer= new char [range.length]; |
| OS.CFStringGetCharacters (result, range, buffer); |
| OS.CFRelease (result); |
| OS.CFRelease (formatter); |
| OS.CFRelease (locale); |
| return new String (buffer); |
| } |
| |
| /** |
| * 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 (); |
| return increment; |
| } |
| |
| /** |
| * 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 (); |
| return OS.GetControl32BitMaximum (buttonHandle); |
| } |
| |
| /** |
| * 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 (); |
| return OS.GetControl32BitMinimum (buttonHandle); |
| } |
| |
| /** |
| * 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 pageIncrement; |
| } |
| |
| /** |
| * 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 (); |
| return OS.GetControl32BitValue (buttonHandle); |
| } |
| |
| int getSelectionText (boolean [] parseFail) { |
| int [] actualSize = new int [1]; |
| int [] ptr = new int [1]; |
| if (OS.GetControlData (textHandle, (short)OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, ptr, actualSize) == OS.noErr) { |
| CFRange range = new CFRange (); |
| range.location = 0; |
| range.length = OS.CFStringGetLength (ptr [0]); |
| char [] buffer= new char [range.length]; |
| OS.CFStringGetCharacters (ptr [0], range, buffer); |
| OS.CFRelease (ptr [0]); |
| String string = new String (buffer); |
| try { |
| int value; |
| if (digits > 0) { |
| String decimalSeparator = getDecimalSeparator (); |
| int index = string.indexOf (decimalSeparator); |
| if (index != -1) { |
| int startIndex = string.startsWith ("+") || string.startsWith ("-") ? 1 : 0; |
| String wholePart = startIndex != index ? string.substring (startIndex, index) : "0"; |
| String decimalPart = string.substring (index + 1); |
| if (decimalPart.length () > digits) { |
| decimalPart = decimalPart.substring (0, digits); |
| } else { |
| int i = digits - decimalPart.length (); |
| for (int j = 0; j < i; j++) { |
| decimalPart = decimalPart + "0"; |
| } |
| } |
| int wholeValue = Integer.parseInt (wholePart); |
| int decimalValue = Integer.parseInt (decimalPart); |
| for (int i = 0; i < digits; i++) wholeValue *= 10; |
| value = wholeValue + decimalValue; |
| if (string.startsWith ("-")) value = -value; |
| } else { |
| value = Integer.parseInt (string); |
| for (int i = 0; i < digits; i++) value *= 10; |
| } |
| } else { |
| value = Integer.parseInt (string); |
| } |
| int max = OS.GetControl32BitMaximum (buttonHandle); |
| int min = OS.GetControl32BitMinimum (buttonHandle); |
| if (min <= value && value <= max) return value; |
| } catch (NumberFormatException e) { |
| } |
| } |
| parseFail [0] = true; |
| return -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() { |
| int [] ptr = new int [1]; |
| int [] actualSize = new int [1]; |
| int result = OS.GetControlData (textHandle, (short)OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, ptr, actualSize); |
| if (result != OS.noErr) return ""; |
| CFRange range = new CFRange (); |
| range.length = OS.CFStringGetLength (ptr [0]); |
| char [] buffer= new char [range.length]; |
| OS.CFStringGetCharacters (ptr [0], range, buffer); |
| OS.CFRelease (ptr [0]); |
| return new String (buffer); |
| } |
| |
| /** |
| * 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 textLimit; |
| } |
| |
| int getVisibleRegion (int control, boolean clipChildren) { |
| if (control == textHandle) { |
| if (!clipChildren) return super.getVisibleRegion (control, clipChildren); |
| if (textVisibleRgn == 0) { |
| textVisibleRgn = OS.NewRgn (); |
| calculateVisibleRegion (control, textVisibleRgn, clipChildren); |
| } |
| int result = OS.NewRgn (); |
| OS.CopyRgn (textVisibleRgn, result); |
| return result; |
| } |
| if (control == buttonHandle) { |
| if (!clipChildren) return super.getVisibleRegion (control, clipChildren); |
| if (buttonVisibleRgn == 0) { |
| buttonVisibleRgn = OS.NewRgn (); |
| calculateVisibleRegion (control, buttonVisibleRgn, clipChildren); |
| } |
| int result = OS.NewRgn (); |
| OS.CopyRgn (buttonVisibleRgn, result); |
| return result; |
| } |
| return super.getVisibleRegion (control, clipChildren); |
| } |
| |
| void hookEvents () { |
| super.hookEvents (); |
| int controlProc = display.controlProc; |
| int [] mask = new int [] { |
| OS.kEventClassControl, OS.kEventControlDraw, |
| OS.kEventClassControl, OS.kEventControlSetFocusPart, |
| OS.kEventClassControl, OS.kEventControlTrack, |
| OS.kEventClassControl, OS.kEventControlGetClickActivation, |
| }; |
| int controlTarget = OS.GetControlEventTarget (textHandle); |
| OS.InstallEventHandler (controlTarget, controlProc, mask.length / 2, mask, handle, null); |
| controlTarget = OS.GetControlEventTarget (buttonHandle); |
| OS.InstallEventHandler (controlTarget, controlProc, mask.length / 2, mask, handle, null); |
| } |
| |
| Rect inset () { |
| return display.editTextInset; |
| } |
| |
| int kEventAccessibleGetNamedAttribute (int nextHandler, int theEvent, int userData) { |
| int code = OS.eventNotHandledErr; |
| int [] stringRef = new int [1]; |
| OS.GetEventParameter (theEvent, OS.kEventParamAccessibleAttributeName, OS.typeCFStringRef, null, 4, null, stringRef); |
| int length = 0; |
| if (stringRef [0] != 0) length = OS.CFStringGetLength (stringRef [0]); |
| char [] buffer = new char [length]; |
| CFRange range = new CFRange (); |
| range.length = length; |
| OS.CFStringGetCharacters (stringRef [0], range, buffer); |
| String attributeName = new String(buffer); |
| if (attributeName.equals (OS.kAXRoleAttribute) || attributeName.equals (OS.kAXRoleDescriptionAttribute)) { |
| String roleText = OS.kAXGroupRole; |
| buffer = new char [roleText.length ()]; |
| roleText.getChars (0, buffer.length, buffer, 0); |
| stringRef [0] = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); |
| if (stringRef [0] != 0) { |
| if (attributeName.equals (OS.kAXRoleAttribute)) { |
| OS.SetEventParameter (theEvent, OS.kEventParamAccessibleAttributeValue, OS.typeCFStringRef, 4, stringRef); |
| } else { // kAXRoleDescriptionAttribute |
| int stringRef2 = OS.HICopyAccessibilityRoleDescription (stringRef [0], 0); |
| OS.SetEventParameter (theEvent, OS.kEventParamAccessibleAttributeValue, OS.typeCFStringRef, 4, new int [] {stringRef2}); |
| OS.CFRelease(stringRef2); |
| } |
| OS.CFRelease(stringRef [0]); |
| code = OS.noErr; |
| } |
| } |
| if (accessible != null) { |
| code = accessible.internal_kEventAccessibleGetNamedAttribute (nextHandler, theEvent, code); |
| } |
| return code; |
| } |
| |
| int kEventControlSetFocusPart (int nextHandler, int theEvent, int userData) { |
| int result = super.kEventControlSetFocusPart (nextHandler, theEvent, userData); |
| if (result == OS.noErr) { |
| short [] part = new short [1]; |
| OS.GetEventParameter (theEvent, OS.kEventParamControlPart, OS.typeControlPartCode, null, 2, null, part); |
| if (part [0] == OS.kControlFocusNoPart) { |
| boolean [] parseFail = new boolean [1]; |
| int value = getSelectionText (parseFail); |
| if (parseFail [0]) { |
| value = OS.GetControl32BitValue (buttonHandle); |
| setSelection (value, false, true, false); |
| } |
| } |
| } |
| return result; |
| } |
| |
| int kEventUnicodeKeyPressed (int nextHandler, int theEvent, int userData) { |
| int result = super.kEventUnicodeKeyPressed (nextHandler, theEvent, userData); |
| if (result == OS.noErr) return result; |
| int [] keyboardEvent = new int [1]; |
| OS.GetEventParameter (theEvent, OS.kEventParamTextInputSendKeyboardEvent, OS.typeEventRef, null, keyboardEvent.length * 4, null, keyboardEvent); |
| int [] keyCode = new int [1]; |
| OS.GetEventParameter (keyboardEvent [0], OS.kEventParamKeyCode, OS.typeUInt32, null, keyCode.length * 4, null, keyCode); |
| int [] modifiers = new int [1]; |
| OS.GetEventParameter (keyboardEvent [0], OS.kEventParamKeyModifiers, OS.typeUInt32, null, 4, null, modifiers); |
| if (modifiers [0] == OS.cmdKey) { |
| switch (keyCode [0]) { |
| case 7: /* X */ |
| cut (); |
| return OS.noErr; |
| case 8: /* C */ |
| copy (); |
| return OS.noErr; |
| case 9: /* V */ |
| paste (); |
| return OS.noErr; |
| } |
| } |
| int delta = 0; |
| switch (keyCode [0]) { |
| case 76: /* KP Enter */ |
| case 36: /* Return */ |
| sendSelectionEvent (SWT.DefaultSelection); |
| return OS.noErr; |
| case 116: /* Page Up */ delta = pageIncrement; break; |
| case 121: /* Page Down */ delta = -pageIncrement; break; |
| case 125: /* Down */ delta = -increment; break; |
| case 126: /* Up */ delta = increment; break; |
| } |
| if (delta != 0) { |
| boolean [] parseFail = new boolean [1]; |
| int value = getSelectionText (parseFail); |
| if (parseFail [0]) { |
| value = OS.GetControl32BitValue (buttonHandle); |
| } |
| int newValue = value + delta; |
| int max = OS.GetControl32BitMaximum (buttonHandle); |
| int min = OS.GetControl32BitMinimum (buttonHandle); |
| if ((style & SWT.WRAP) != 0) { |
| if (newValue > max) newValue = min; |
| if (newValue < min) newValue = max; |
| } |
| newValue = Math.min (Math.max (min, newValue), max); |
| if (value != newValue) setSelection (newValue, true, true, true); |
| return OS.noErr; |
| } else { |
| result = OS.CallNextEventHandler (nextHandler, theEvent); |
| boolean [] parseFail = new boolean [1]; |
| int value = getSelectionText (parseFail); |
| if (!parseFail [0]) { |
| int pos = OS.GetControl32BitValue (buttonHandle); |
| if (pos != value) setSelection (value, true, false, true); |
| } |
| } |
| return result; |
| } |
| |
| int kEventTextInputUpdateActiveInputArea (int nextHandler, int theEvent, int userData) { |
| int [] length = new int [1]; |
| OS.GetEventParameter (theEvent, OS.kEventParamTextInputSendText, OS.typeUnicodeText, null, 0, length, (char [])null); |
| int [] fixed_length = new int [1]; |
| OS.GetEventParameter (theEvent, OS.kEventParamTextInputSendFixLen, OS.typeLongInteger, null, 4, null, fixed_length); |
| if (fixed_length [0] == -1 || fixed_length [0] == length [0]) { |
| postEvent (SWT.Modify); |
| } |
| return OS.eventNotHandledErr; |
| } |
| |
| /** |
| * 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; |
| String text = getClipboardText (); |
| short [] selection = new short [2]; |
| if (OS.GetControlData (textHandle, (short)OS.kControlEntireControl, OS.kControlEditTextSelectionTag, 4, selection, null) != OS.noErr) return; |
| setText (text, selection [0], selection [1], true); |
| } |
| |
| boolean pollTrackEvent() { |
| return true; |
| } |
| |
| public void redraw () { |
| checkWidget(); |
| super.redraw (); |
| redrawWidget (textHandle, false); |
| redrawWidget (buttonHandle, false); |
| } |
| |
| void register () { |
| super.register (); |
| display.addWidget (textHandle, this); |
| display.addWidget (buttonHandle, 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); |
| } |
| |
| void resetVisibleRegion (int control) { |
| if (textVisibleRgn != 0) { |
| OS.DisposeRgn (textVisibleRgn); |
| textVisibleRgn = 0; |
| } |
| if (buttonVisibleRgn != 0) { |
| OS.DisposeRgn (buttonVisibleRgn); |
| buttonVisibleRgn = 0; |
| } |
| super.resetVisibleRegion (control); |
| } |
| |
| void resizeClientArea () { |
| int [] outMetric = new int [1]; |
| OS.GetThemeMetric (OS.kThemeMetricLittleArrowsWidth, outMetric); |
| int buttonWidth = outMetric [0] + GAP; |
| OS.GetThemeMetric (OS.kThemeMetricLittleArrowsHeight, outMetric); |
| int buttonHeight = outMetric [0]; |
| Rect rect = new Rect (); |
| OS.GetControlBounds (handle, rect); |
| Rect inset = inset (); |
| int width = Math.max (0, rect.right - rect.left - inset.left - inset.right - buttonWidth); |
| int height = Math.max (0, rect.bottom - rect.top - inset.top - inset.bottom); |
| buttonHeight = Math.min (buttonHeight, rect.bottom - rect.top); |
| setBounds (textHandle, inset.left, inset.top, width, height, true, true, false); |
| setBounds (buttonHandle, inset.left + inset.right + width + GAP, inset.top + (height - buttonHeight) / 2, buttonWidth, buttonHeight, true, true, false); |
| } |
| |
| boolean sendKeyEvent (int type, Event event) { |
| if (!super.sendKeyEvent (type, event)) { |
| return false; |
| } |
| if (type != SWT.KeyDown) return true; |
| if ((style & SWT.READ_ONLY) != 0) return true; |
| if (event.character == 0) return true; |
| if ((event.stateMask & SWT.COMMAND) != 0) return true; |
| // if (!hooks (SWT.Verify) && !filters (SWT.Verify)) return true; |
| String oldText = "", newText = ""; |
| int [] actualSize = new int [1]; |
| int [] ptr = new int [1]; |
| int charCount = 0; |
| if (OS.GetControlData (textHandle, (short)OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, ptr, actualSize) == OS.noErr) { |
| charCount = OS.CFStringGetLength (ptr [0]); |
| OS.CFRelease (ptr [0]); |
| } |
| short [] selection = new short [2]; |
| OS.GetControlData (textHandle, (short)OS.kControlEntireControl, OS.kControlEditTextSelectionTag, 4, selection, null); |
| int start = selection [0], end = selection [1]; |
| switch (event.character) { |
| case SWT.BS: |
| if (start == end) { |
| if (start == 0) return true; |
| start = Math.max (0, start - 1); |
| } |
| break; |
| case SWT.DEL: |
| if (start == end) { |
| if (start == charCount) return true; |
| end = Math.min (end + 1, charCount); |
| } |
| break; |
| case SWT.CR: |
| return true; |
| default: |
| if (event.character != '\t' && event.character < 0x20) return true; |
| oldText = new String (new char [] {event.character}); |
| } |
| newText = verifyText (oldText, start, end, event); |
| if (newText == null) return false; |
| if (charCount - (end - start) + newText.length () > textLimit) { |
| return false; |
| } |
| if (newText != oldText) { |
| setText (newText, start, end, false); |
| start += newText.length (); |
| selection = new short [] {(short)start, (short)start}; |
| OS.SetControlData (textHandle, (short)OS.kControlEntireControl, OS.kControlEditTextSelectionTag, 4, selection); |
| } |
| /* |
| * Post the modify event so that the character will be inserted |
| * into the widget when the modify event is delivered. Normally, |
| * modify events are sent but it is safe to post the event here |
| * because this method is called from the event loop. |
| */ |
| postEvent (SWT.Modify); |
| return newText == oldText; |
| } |
| |
| void setBackground (float [] color) { |
| super.setBackground (color); |
| setBackground (textHandle, color); |
| } |
| |
| int setBounds (int x, int y, int width, int height, boolean move, boolean resize, boolean events) { |
| Rectangle bounds = null; |
| if (resize) bounds = getBounds (); |
| int result = super.setBounds(x, y, width, height, move, resize, events); |
| if (bounds != null && (result & RESIZED) != 0) { |
| /* |
| * Feature in the Macintosh. When the caret is moved, |
| * the text widget scrolls to show the new location. |
| * This means that the text widget may be scrolled |
| * to the right in order to show the caret when the |
| * widget is not large enough to show both the caret |
| * location and all the text. Unfortunately, when |
| * the text widget is resized such that all the text |
| * and the caret could be visible, Macintosh does not |
| * scroll the widget back. The fix is to reset the |
| * selection or the text depend on if the widget |
| * is on focus or not. |
| */ |
| int [] outMetric = new int [1]; |
| OS.GetThemeMetric (OS.kThemeMetricLittleArrowsWidth, outMetric); |
| int buttonWidth = outMetric [0] + GAP; |
| Rect inset = inset (); |
| int minWidth = inset.left + inset.right + buttonWidth; |
| if (bounds.width <= minWidth && width > minWidth) { |
| if (hasFocus ()) { |
| ControlEditTextSelectionRec selection = new ControlEditTextSelectionRec (); |
| if (OS.GetControlData (textHandle, (short) OS.kControlEntireControl, OS.kControlEditTextSelectionTag, 4, selection, null) == OS.noErr) { |
| OS.SetControlData (textHandle, OS.kControlEntireControl, OS.kControlEditTextSelectionTag, 4, selection); |
| } |
| } else { |
| int [] ptr = new int [1]; |
| if (OS.GetControlData (textHandle, (short)OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, ptr, null) == OS.noErr) { |
| OS.SetControlData (textHandle, OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, ptr); |
| } |
| if (ptr [0] != 0) OS.CFRelease (ptr [0]); |
| } |
| } |
| } |
| return result; |
| } |
| |
| /** |
| * 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 (); |
| if (value < 0) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (value == digits) return; |
| digits = value; |
| int pos = OS.GetControl32BitValue (buttonHandle); |
| setSelection (pos, false, true, false); |
| } |
| |
| void setFontStyle (Font font) { |
| super.setFontStyle (font); |
| setFontStyle (textHandle, font); |
| } |
| |
| void setForeground (float [] color) { |
| super.setForeground (color); |
| setForeground (textHandle, color); |
| } |
| |
| /** |
| * 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; |
| increment = value; |
| } |
| |
| /** |
| * 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 (); |
| int min = OS.GetControl32BitMinimum (buttonHandle); |
| if (value < min) return; |
| int pos = OS.GetControl32BitValue (buttonHandle); |
| OS.SetControl32BitMaximum (buttonHandle, value); |
| if (pos > value) setSelection (value, true, true, false); |
| } |
| |
| /** |
| * 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 (); |
| int max = OS.GetControl32BitMaximum (buttonHandle); |
| if (value > max) return; |
| int pos = OS.GetControl32BitValue (buttonHandle); |
| OS.SetControl32BitMinimum (buttonHandle, value); |
| if (pos < value) setSelection (value, true, true, false); |
| } |
| |
| /** |
| * 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; |
| pageIncrement = value; |
| } |
| |
| /** |
| * 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 (); |
| int min = OS.GetControl32BitMinimum (buttonHandle); |
| int max = OS.GetControl32BitMaximum (buttonHandle); |
| value = Math.min (Math.max (min, value), max); |
| setSelection (value, true, true, false); |
| } |
| |
| void setSelection (int value, boolean setPos, boolean setText, boolean notify) { |
| if (setPos) { |
| OS.SetControl32BitValue (buttonHandle, value); |
| } |
| if (setText) { |
| String string; |
| if (digits == 0) { |
| string = String.valueOf (value); |
| } else { |
| string = String.valueOf (Math.abs (value)); |
| String decimalSeparator = getDecimalSeparator (); |
| int index = string.length () - digits; |
| StringBuffer buffer = new StringBuffer (); |
| if (value < 0) buffer.append ("-"); |
| if (index > 0) { |
| buffer.append (string.substring (0, index)); |
| buffer.append (decimalSeparator); |
| buffer.append (string.substring (index)); |
| } else { |
| buffer.append ("0"); |
| buffer.append (decimalSeparator); |
| while (index++ < 0) buffer.append ("0"); |
| buffer.append (string); |
| } |
| string = buffer.toString (); |
| } |
| if (hooks (SWT.Verify) || filters (SWT.Verify)) { |
| int [] actualSize = new int [1]; |
| int [] ptr = new int [1]; |
| int length = 0; |
| if (OS.GetControlData (textHandle, (short)OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, ptr, actualSize) == OS.noErr) { |
| length = OS.CFStringGetLength (ptr [0]); |
| OS.CFRelease (ptr [0]); |
| } |
| string = verifyText (string, 0, length, null); |
| if (string == null) return; |
| } |
| char [] buffer = new char [string.length ()]; |
| string.getChars (0, buffer.length, buffer, 0); |
| int ptr = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); |
| if (ptr == 0) error (SWT.ERROR_CANNOT_SET_TEXT); |
| OS.SetControlData (textHandle, OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, new int[] {ptr}); |
| OS.CFRelease (ptr); |
| short [] selection = new short [] {0, (short)string.length ()}; |
| OS.SetControlData (textHandle, (short)OS.kControlEntireControl, OS.kControlEditTextSelectionTag, 4, selection); |
| sendEvent (SWT.Modify); |
| } |
| if (notify) sendSelectionEvent (SWT.Selection); |
| } |
| |
| char [] setText (String string, int start, int end, boolean notify) { |
| if (notify) { |
| if (hooks (SWT.Verify) || filters (SWT.Verify)) { |
| string = verifyText (string, start, end, null); |
| if (string == null) return null; |
| } |
| } |
| int [] actualSize = new int [1]; |
| int [] ptr = new int [1]; |
| if (OS.GetControlData (textHandle, (short)OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, ptr, actualSize) != OS.noErr) return null; |
| int charCount = OS.CFStringGetLength (ptr [0]); |
| int length = string.length (); |
| if (textLimit != LIMIT) { |
| if (charCount - (end - start) + length > textLimit) { |
| length = textLimit - charCount + (end - start); |
| } |
| } |
| char [] text = new char [charCount - (end - start) + length]; |
| CFRange range = new CFRange (); |
| range.location = 0; |
| range.length = start; |
| char [] buffer = new char [range.length]; |
| OS.CFStringGetCharacters (ptr [0], range, buffer); |
| System.arraycopy (buffer, 0, text, 0, range.length); |
| string.getChars (0, length, text, start); |
| range.location = end; |
| range.length = charCount - end; |
| buffer = new char [range.length]; |
| OS.CFStringGetCharacters (ptr [0], range, buffer); |
| System.arraycopy (buffer, 0, text, start + length, range.length); |
| |
| /* Copying the return value to buffer */ |
| range.location = start; |
| range.length = end - start; |
| buffer = new char [range.length]; |
| OS.CFStringGetCharacters (ptr [0], range, buffer); |
| OS.CFRelease (ptr [0]); |
| |
| ptr [0] = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, text, text.length); |
| if (ptr [0] == 0) error (SWT.ERROR_CANNOT_SET_TEXT); |
| OS.SetControlData (textHandle, OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, ptr); |
| OS.CFRelease (ptr [0]); |
| if (notify) sendEvent (SWT.Modify); |
| return buffer; |
| } |
| |
| /** |
| * 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); |
| textLimit = limit; |
| } |
| |
| /** |
| * 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 (maximum < minimum) return; |
| if (digits < 0) return; |
| if (increment < 1) return; |
| if (pageIncrement < 1) return; |
| selection = Math.min (Math.max (minimum, selection), maximum); |
| this.increment = increment; |
| this.pageIncrement = pageIncrement; |
| this.digits = digits; |
| OS.SetControl32BitMaximum (buttonHandle, maximum); |
| OS.SetControl32BitMinimum (buttonHandle, minimum); |
| setSelection (selection, true, true, false); |
| } |
| |
| void setZOrder () { |
| super.setZOrder (); |
| if (textHandle != 0) OS.HIViewAddSubview (handle, textHandle); |
| if (buttonHandle != 0) OS.HIViewAddSubview (handle, buttonHandle); |
| } |
| |
| String verifyText (String string, int start, int end, Event keyEvent) { |
| Event event = new Event (); |
| event.text = string; |
| event.start = start; |
| event.end = end; |
| if (keyEvent != null) { |
| event.character = keyEvent.character; |
| event.keyCode = keyEvent.keyCode; |
| event.stateMask = keyEvent.stateMask; |
| } |
| int index = 0; |
| if (digits > 0) { |
| String decimalSeparator = getDecimalSeparator (); |
| index = string.indexOf (decimalSeparator); |
| if (index != -1) { |
| string = string.substring (0, index) + string.substring (index + 1); |
| } |
| index = 0; |
| } |
| if (string.length() > 0) { |
| int minimum = OS.GetControl32BitMinimum (buttonHandle); |
| if (minimum < 0 && string.charAt (0) == '-') index++; |
| } |
| while (index < string.length ()) { |
| if (!Character.isDigit (string.charAt (index))) break; |
| index++; |
| } |
| event.doit = index == string.length (); |
| /* |
| * It is possible (but unlikely), that application |
| * code could have disposed the widget in the verify |
| * event. If this happens, answer null to cancel |
| * the operation. |
| */ |
| sendEvent (SWT.Verify, event); |
| if (!event.doit || isDisposed ()) return null; |
| return event.text; |
| } |
| |
| } |