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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/Text.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/Text.java | 2524 |
1 files changed, 2524 insertions, 0 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/Text.java b/bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/Text.java new file mode 100644 index 0000000000..4c204f0be3 --- /dev/null +++ b/bundles/org.eclipse.swt/Eclipse SWT/carbon/org/eclipse/swt/widgets/Text.java @@ -0,0 +1,2524 @@ +/******************************************************************************* + * 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.HILayoutInfo; +import org.eclipse.swt.internal.carbon.HISideBinding; +import org.eclipse.swt.internal.carbon.HIThemeFrameDrawInfo; +import org.eclipse.swt.internal.carbon.OS; +import org.eclipse.swt.internal.carbon.RGBColor; +import org.eclipse.swt.internal.carbon.Rect; +import org.eclipse.swt.internal.carbon.ControlEditTextSelectionRec; +import org.eclipse.swt.internal.carbon.ControlFontStyleRec; +import org.eclipse.swt.internal.carbon.CFRange; +import org.eclipse.swt.internal.carbon.CGRect; +import org.eclipse.swt.internal.carbon.TXNTab; +import org.eclipse.swt.internal.carbon.CGPoint; + +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 text. + * Text controls can be either single or multi-line. + * When a text control is created with a border, the + * operating system includes a platform specific inset + * around the contents of the control. When created + * without a border, an effort is made to remove the + * inset such that the preferred size of the control + * is the same size as the contents. + * <p> + * <dl> + * <dt><b>Styles:</b></dt> + * <dd>CENTER, ICON_CANCEL, ICON_SEARCH, LEFT, MULTI, PASSWORD, SEARCH, SINGLE, RIGHT, READ_ONLY, WRAP</dd> + * <dt><b>Events:</b></dt> + * <dd>DefaultSelection, Modify, Verify</dd> + * </dl> + * <p> + * Note: Only one of the styles MULTI and SINGLE may be specified, + * and only one of the styles LEFT, CENTER, and RIGHT may be specified. + * </p> + * <p> + * Note: The styles ICON_CANCEL and ICON_SEARCH are hints used in combination with SEARCH. + * When the platform supports the hint, the text control shows these icons. When an icon + * is selected, a default selection event is sent with the detail field set to one of + * ICON_CANCEL or ICON_SEARCH. Normally, application code does not need to check the + * detail. In the case of ICON_CANCEL, the text is cleared before the default selection + * event is sent causing the application to search for an empty string. + * </p> + * <p> + * IMPORTANT: This class is <em>not</em> intended to be subclassed. + * </p> + * + * @see <a href="http://www.eclipse.org/swt/snippets/#text">Text 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 Text extends Scrollable { + int txnObject, frameHandle; + int textLimit = LIMIT, tabs = 8; + ControlEditTextSelectionRec selection; + char echoCharacter; + boolean doubleClick; + String hiddenText, message; + + /** + * The maximum number of characters that can be entered + * into a text widget. + * <p> + * Note that this value is platform dependent, based upon + * the native widget implementation. + * </p> + */ + public static final int LIMIT; + + /** + * The delimiter used by multi-line text widgets. When text + * is queried and from the widget, it will be delimited using + * this delimiter. + */ + public static final String DELIMITER; + static final char PASSWORD = '\u2022'; + + /* + * 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; + DELIMITER = "\r"; + } + + static final String [] AX_ATTRIBUTES = { + OS.kAXTitleAttribute, + OS.kAXValueAttribute, + OS.kAXNumberOfCharactersAttribute, + OS.kAXSelectedTextAttribute, + OS.kAXSelectedTextRangeAttribute, + OS.kAXStringForRangeParameterizedAttribute, + }; + +/** + * 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#SINGLE + * @see SWT#MULTI + * @see SWT#READ_ONLY + * @see SWT#WRAP + * @see SWT#LEFT + * @see SWT#RIGHT + * @see SWT#CENTER + * @see SWT#PASSWORD + * @see SWT#SEARCH + * @see SWT#ICON_SEARCH + * @see SWT#ICON_CANCEL + * @see Widget#checkSubclass + * @see Widget#getStyle + */ +public Text (Composite parent, int style) { + super (parent, checkStyle (style)); + if ((style & SWT.SEARCH) != 0) { + /* + * Ensure that SWT.ICON_CANCEL and ICON_SEARCH are set. + * NOTE: ICON_CANCEL has the same value as H_SCROLL and + * ICON_SEARCH has the same value as V_SCROLL so it is + * necessary to first clear these bits to avoid a scroll + * bar and then reset the bit using the original style + * supplied by the programmer. + */ + int attributes = OS.kHISearchFieldNoAttributes; + if ((style & SWT.ICON_CANCEL) != 0) { + this.style |= SWT.ICON_CANCEL; + attributes |= OS.kHISearchFieldAttributesCancel; + } + if ((style & SWT.ICON_SEARCH) != 0) { + this.style |= SWT.ICON_SEARCH; + attributes |= OS.kHISearchFieldAttributesSearchIcon; + } + if (attributes != OS.kHISearchFieldNoAttributes) { + OS.HISearchFieldChangeAttributes (handle, attributes, 0); + } + } +} + +/** + * 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, + * or when ENTER is pressed in a search text. If the receiver has the <code>SWT.SEARCH | SWT.CANCEL</code> style + * and the user cancels the search, the event object detail field contains the value <code>SWT.CANCEL</code>. + * </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 + */ +public void addVerifyListener (VerifyListener listener) { + checkWidget(); + if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); + TypedListener typedListener = new TypedListener (listener); + addListener (SWT.Verify, typedListener); +} + +/** + * Appends a string. + * <p> + * The new text is appended to the text at + * the end of the widget. + * </p> + * + * @param string the string to be appended + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string 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 append (String string) { + checkWidget(); + if (string == null) error (SWT.ERROR_NULL_ARGUMENT); + if (hooks (SWT.Verify) || filters (SWT.Verify)) { + int charCount = getCharCount (); + string = verifyText (string, charCount, charCount, null); + if (string == null) return; + } + if (txnObject == 0) { + setSelection (getCharCount ()); + insertEditText (string); + } else { + setTXNText (OS.kTXNEndOffset, OS.kTXNEndOffset, string); + OS.TXNSetSelection (txnObject, OS.kTXNEndOffset, OS.kTXNEndOffset); + OS.TXNShowSelection (txnObject, false); + } + if (string.length () != 0) sendModifyEvent (true); +} + +static int checkStyle (int style) { + if ((style & SWT.SEARCH) != 0) { + style |= SWT.SINGLE | SWT.BORDER; + style &= ~SWT.PASSWORD; + /* + * NOTE: ICON_CANCEL has the same value as H_SCROLL and + * ICON_SEARCH has the same value as V_SCROLL so they are + * cleared because SWT.SINGLE is set. + */ + } + if ((style & SWT.SINGLE) != 0 && (style & SWT.MULTI) != 0) { + style &= ~SWT.MULTI; + } + style = checkBits (style, SWT.LEFT, SWT.CENTER, SWT.RIGHT, 0, 0, 0); + if ((style & SWT.SINGLE) != 0) style &= ~(SWT.H_SCROLL | SWT.V_SCROLL | SWT.WRAP); + if ((style & SWT.WRAP) != 0) { + style |= SWT.MULTI; + style &= ~SWT.H_SCROLL; + } + if ((style & SWT.MULTI) != 0) style &= ~SWT.PASSWORD; + if ((style & (SWT.SINGLE | SWT.MULTI)) != 0) return style; + if ((style & (SWT.H_SCROLL | SWT.V_SCROLL)) != 0) return style | SWT.MULTI; + return style | SWT.SINGLE; +} + +int callPaintEventHandler (int control, int damageRgn, int visibleRgn, int theEvent, int nextHandler) { + int result = super.callPaintEventHandler (control, damageRgn, visibleRgn, theEvent, nextHandler); + if (frameHandle == control) { + int [] context = new int [1]; + OS.GetEventParameter (theEvent, OS.kEventParamCGContextRef, OS.typeCGContextRef, null, 4, null, context); + OS.CGContextSaveGState (context[0]); + int [] outMetric = new int [1]; + OS.GetThemeMetric (OS.kThemeMetricFocusRectOutset, outMetric); + CGRect rect = new CGRect (); + OS.HIViewGetBounds (frameHandle, rect); + rect.x += outMetric [0]; + rect.y += outMetric [0]; + rect.width -= outMetric [0] * 2; + rect.height -= outMetric [0] * 2; + int state; + if (OS.IsControlEnabled (control)) { + state = OS.IsControlActive (control) ? OS.kThemeStateActive : OS.kThemeStateInactive; + } else { + state = OS.IsControlActive (control) ? OS.kThemeStateUnavailable : OS.kThemeStateUnavailableInactive; + } + HIThemeFrameDrawInfo info = new HIThemeFrameDrawInfo (); + info.state = state; + info.isFocused = hasFocus (); + info.kind = OS.kHIThemeFrameTextFieldSquare; + OS.HIThemeDrawFrame (rect, info, context [0], OS.kHIThemeOrientationNormal); + if ((style & (SWT.H_SCROLL | SWT.V_SCROLL)) == (SWT.V_SCROLL | SWT.H_SCROLL)) { + OS.HIViewGetBounds (frameHandle, rect); + rect.x = rect.width - outMetric [0]; + rect.y = rect.height - outMetric [0]; + OS.GetThemeMetric (OS.kThemeMetricEditTextFrameOutset, outMetric); + rect.x -= outMetric [0]; + rect.y -= outMetric [0]; + OS.GetThemeMetric (OS.kThemeMetricScrollBarWidth, outMetric); + rect.x -= outMetric [0]; + rect.y -= outMetric [0]; + rect.width = rect.height = outMetric [0]; + OS.CGContextSetFillColor (context [0], new float[]{1, 1, 1, 1}); + OS.CGContextFillRect (context [0], rect); + } + OS.CGContextRestoreGState (context[0]); + } + return result; +} + +int callFocusEventHandler (int nextHandler, int theEvent) { + short [] part = new short [1]; + if (txnObject == 0) { + OS.GetEventParameter (theEvent, OS.kEventParamControlPart, OS.typeControlPartCode, null, 2, null, part); + if (part [0] == OS.kControlFocusNoPart) { + selection = new ControlEditTextSelectionRec (); + OS.GetControlData (handle, (short) OS.kControlEntireControl, OS.kControlEditTextSelectionTag, 4, selection, null); + } + } + int result = super.callFocusEventHandler (nextHandler, theEvent); + if (isDisposed () ) return result; + if (frameHandle != 0) { + OS.HIViewSetNeedsDisplay (frameHandle, true); + } + if (txnObject == 0) { + if (part [0] != OS.kControlFocusNoPart && selection != null) { + OS.SetControlData (handle, (short) OS.kControlEntireControl, OS.kControlEditTextSelectionTag, 4, selection); + selection = null; + } + } + return result; +} + +/** + * Clears 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 void clearSelection () { + checkWidget(); + if (txnObject == 0) { + Point selection = getSelection (); + setSelection (selection.x); + } else { + int [] oStartOffset = new int [1], oEndOffset = new int [1]; + OS.TXNGetSelection (txnObject, oStartOffset, oEndOffset); + OS.TXNSetSelection (txnObject, oStartOffset [0], oStartOffset [0]); + } +} + +public Point computeSize (int wHint, int hHint, boolean changed) { + checkWidget(); + int width = 0, height = 0; + if (txnObject == 0) { + if ((style & SWT.SEARCH) != 0) { + int [] ptr1 = new int [1]; + OS.GetControlData (handle, (short)OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, ptr1, null); + Point size1 = textExtent (ptr1 [0], 0); + if (ptr1 [0] != 0) OS.CFRelease (ptr1 [0]); + width = size1.x; + height = size1.y; + int [] metric = new int [1]; + OS.GetThemeMetric (OS.kThemeMetricEditTextWhitespace, metric); + height += metric [0] * 2; + OS.GetThemeMetric (OS.kThemeMetricEditTextFrameOutset, metric); + height += metric [0] * 2; + } else { + if ((style & SWT.RIGHT) != 0) { + OS.SetControlData (handle, OS.kControlEntireControl, OS.kControlEditTextSingleLineTag, 1, new byte [] {1}); + } + Rect rect = new Rect (); + OS.GetBestControlRect (handle, rect, null); + if ((style & SWT.RIGHT) != 0) { + OS.SetControlData (handle, OS.kControlEntireControl, OS.kControlEditTextSingleLineTag, 1, new byte [] {0}); + } + width = rect.right - rect.left; + height = rect.bottom - rect.top; + } + } else { + int [] oDataHandle = new int [1]; + OS.TXNGetData (txnObject, OS.kTXNStartOffset, OS.kTXNEndOffset, oDataHandle); + if (oDataHandle [0] != 0) { + int length = OS.GetHandleSize (oDataHandle [0]), str = 0; + if (length != 0) { + int [] ptr = new int [1]; + OS.HLock (oDataHandle [0]); + OS.memmove (ptr, oDataHandle [0], 4); + str = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, ptr [0], length / 2); + OS.HUnlock (oDataHandle[0]); + } + OS.DisposeHandle (oDataHandle[0]); + Point size = textExtent (str, wHint != SWT.DEFAULT && (style & SWT.WRAP) != 0 ? wHint : 0); + if (str != 0) OS.CFRelease(str); + width = size.x; + height = size.y; + } + } + int length = message.length (); + if ((style & SWT.SINGLE) != 0 && length > 0) { + char [] buffer = new char [length]; + message.getChars (0, length, buffer, 0); + Point size = textExtent (buffer, 0); + width = Math.max (width, size.x); + } + if (width <= 0) width = DEFAULT_WIDTH; + if (height <= 0) height = DEFAULT_HEIGHT; + if (wHint != SWT.DEFAULT) width = wHint; + if (hHint != SWT.DEFAULT) height = hHint; + Rectangle trim = computeTrim (0, 0, width, height); + width = trim.width; + height = trim.height; + return new Point (width, height); +} + +public Rectangle computeTrim (int x, int y, int width, int height) { + checkWidget (); + int [] size = new int [1]; + OS.GetThemeMetric(OS.kThemeMetricScrollBarWidth, size); + if (horizontalBar != null) height += size [0]; + if (verticalBar != null) width += size [0]; + Rect inset = inset (); + x -= inset.left; + y -= inset.top; + width += inset.left + inset.right; + height += inset.top + inset.bottom; + if (txnObject == 0) { + inset = getInset (); + x -= inset.left; + y -= inset.top; + width += inset.left + inset.right; + height += inset.top + inset.bottom; + } + if ((style & SWT.SEARCH) != 0) { + int [] left = new int [1], right = new int [1]; + int [] outAttributes = new int [1]; + OS.HISearchFieldGetAttributes (handle, outAttributes); + if ((outAttributes [0] & OS.kHISearchFieldAttributesSearchIcon) != 0) { + OS.GetThemeMetric (display.smallFonts ? OS.kThemeMetricRoundTextFieldSmallContentInsetWithIconLeft : OS.kThemeMetricRoundTextFieldContentInsetWithIconLeft, left); + } else { + OS.GetThemeMetric (display.smallFonts ? OS.kThemeMetricRoundTextFieldSmallContentInsetLeft : OS.kThemeMetricRoundTextFieldContentInsetLeft, left); + } + if ((outAttributes [0] & OS.kHISearchFieldAttributesCancel) != 0) { + OS.GetThemeMetric (display.smallFonts ? OS.kThemeMetricRoundTextFieldSmallContentInsetWithIconRight : OS.kThemeMetricRoundTextFieldContentInsetWithIconRight, right); + } else { + OS.GetThemeMetric (display.smallFonts ? OS.kThemeMetricRoundTextFieldSmallContentInsetRight : OS.kThemeMetricRoundTextFieldContentInsetRight, right); + } + width += left [0] + right [0]; + } + 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 (); + if ((style & SWT.PASSWORD) != 0 || echoCharacter != '\0') return; + if (txnObject == 0) { + Point selection = getSelection (); + if (selection.x == selection.y) return; + copyToClipboard (getEditText (selection.x, selection.y - 1)); + } else { + OS.TXNCopy (txnObject); + } +} + +void createHandle () { + if ((style & SWT.READ_ONLY) != 0) { + if ((style & (SWT.BORDER | SWT.H_SCROLL | SWT.V_SCROLL)) == 0) { + state |= THEME_BACKGROUND; + } + } + int [] outControl = new int [1]; + if ((style & SWT.MULTI) != 0 || (style & (SWT.BORDER | SWT.SEARCH)) == 0) { + if ((style & (SWT.H_SCROLL | SWT.V_SCROLL)) != 0 || OS.VERSION >= 0x1050) { + int options = 0; + if ((style & (SWT.H_SCROLL | SWT.V_SCROLL)) == (SWT.H_SCROLL | SWT.V_SCROLL)) options |= OS.kHIScrollViewOptionsAllowGrow; + if ((style & SWT.H_SCROLL) != 0) options |= OS.kHIScrollViewOptionsHorizScroll; + if ((style & SWT.V_SCROLL) != 0) options |= OS.kHIScrollViewOptionsVertScroll; + /* + * Bug in the Macintosh. HIScrollViewCreate() fails if no scroll bit is + * specified. In order to get horizontal scrolling in a single line text, a + * scroll view is created with the vertical bit set and the scroll bars + * are set to auto hide. But calling HIScrollViewSetScrollBarAutoHide() + * before the view has been resized still leaves space for the vertical + * scroll bar. The fix is to call HIScrollViewSetScrollBarAutoHide() + * once the widget has been resized. + */ + if (options == 0) options |= OS.kHIScrollViewOptionsVertScroll; + OS.HIScrollViewCreate (options, outControl); + if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES); + scrolledHandle = outControl [0]; + OS.HIViewSetVisible (scrolledHandle, true); + } + int iFrameOptions = OS.kTXNDontDrawCaretWhenInactiveMask | OS.kTXNMonostyledTextMask; + /* + * Bug in the Macintosh. For some reason a single line text does not + * display properly when it is right aligned. The fix is to use a + * multi line text when right aligned. + */ + if ((style & SWT.RIGHT) == 0) { + if ((style & SWT.SINGLE) != 0) iFrameOptions |= OS.kTXNSingleLineOnlyMask; + } + if ((style & SWT.WRAP) != 0) iFrameOptions |= OS.kTXNAlwaysWrapAtViewEdgeMask; + OS.HITextViewCreate (null, 0, iFrameOptions, outControl); + if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES); + handle = outControl [0]; + OS.HIViewSetVisible (handle, true); + if ((state & THEME_BACKGROUND) != 0) OS.HITextViewSetBackgroundColor (handle, 0); + if ((style & SWT.MULTI) != 0 && (style & SWT.BORDER) != 0) { + int features = OS.kControlSupportsEmbedding; + OS.CreateUserPaneControl (0, null, features, outControl); + if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES); + frameHandle = outControl [0]; + } + txnObject = OS.HITextViewGetTXNObject (handle); + int ptr = OS.NewPtr (Rect.sizeof); + Rect rect = (style & SWT.SINGLE) != 0 ? inset () : new Rect (); + OS.memmove (ptr, rect, Rect.sizeof); + int [] tags = new int [] { + OS.kTXNDisableDragAndDropTag, + OS.kTXNDoFontSubstitution, + OS.kTXNIOPrivilegesTag, + OS.kTXNMarginsTag, + OS.kTXNJustificationTag, + }; + int just = OS.kTXNFlushLeft; + if ((style & SWT.CENTER) != 0) just = OS.kTXNCenter; + if ((style & SWT.RIGHT) != 0) just = OS.kTXNFlushRight; + int [] datas = new int [] { + 1, + 1, + (style & SWT.READ_ONLY) != 0 ? 1 : 0, + ptr, + just, + }; + OS.TXNSetTXNObjectControls (txnObject, false, tags.length, tags, datas); + OS.DisposePtr (ptr); + } else { + if ((style & SWT.SEARCH) != 0) { + OS.HISearchFieldCreate (null, OS.kHISearchFieldNoAttributes, 0, 0, outControl); + } else { + int window = OS.GetControlOwner (parent.handle); + OS.CreateEditUnicodeTextControl (window, null, 0, (style & SWT.PASSWORD) != 0, null, outControl); + } + if (outControl [0] == 0) error (SWT.ERROR_NO_HANDLES); + handle = outControl [0]; + if ((style & SWT.SEARCH) != 0 && display.smallFonts) { + OS.SetControlData (handle, OS.kControlEntireControl, OS.kControlSizeTag, 2, new short [] {OS.kControlSizeSmall}); + } + /* + * Bug in the Macintosh. For some reason a single line text does not + * display selection properly when it is right aligned. The fix is to use a + * multi line text when right aligned. + */ + if ((style & SWT.RIGHT) == 0) { + OS.SetControlData (handle, OS.kControlEntireControl, OS.kControlEditTextSingleLineTag, 1, new byte [] {1}); + } + if ((style & SWT.READ_ONLY) != 0) { + OS.SetControlData (handle, OS.kControlEntireControl, OS.kControlEditTextLockedTag, 1, new byte [] {1}); + } + if ((style & (SWT.RIGHT | SWT.CENTER)) != 0) { + ControlFontStyleRec fontStyle = new ControlFontStyleRec (); + fontStyle.flags |= OS.kControlUseJustMask; + if ((style & SWT.CENTER) != 0) fontStyle.just = OS.teJustCenter; + if ((style & SWT.RIGHT) != 0) fontStyle.just = OS.teJustRight; + OS.SetControlFontStyle (handle, fontStyle); + } + if ((style & SWT.SEARCH) != 0) { + OS.HIViewSetVisible (handle, true); + } + } +} + +ScrollBar createScrollBar (int style) { + return createStandardBar (style); +} + +void createWidget () { + super.createWidget (); + doubleClick = true; + if ((style & SWT.PASSWORD) != 0) setEchoChar (PASSWORD); + message = ""; +} + +/** + * 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; + boolean cut = true; + char [] oldText = null; + Point oldSelection = getSelection (); + if (hooks (SWT.Verify) || filters (SWT.Verify)) { + if (oldSelection.x != oldSelection.y) { + oldText = getEditText (oldSelection.x, oldSelection.y - 1); + String newText = verifyText ("", oldSelection.x, oldSelection.y, null); + if (newText == null) return; + if (newText.length () != 0) { + copyToClipboard (oldText); + if (txnObject == 0) { + insertEditText (newText); + } else { + setTXNText (OS.kTXNUseCurrentSelection, OS.kTXNUseCurrentSelection, newText); + OS.TXNShowSelection (txnObject, false); + } + cut = false; + } + } + } + if (cut) { + if (txnObject == 0) { + if (oldText == null) oldText = getEditText (oldSelection.x, oldSelection.y - 1); + copyToClipboard (oldText); + insertEditText (""); + } else { + OS.TXNCut (txnObject); + + /* + * Feature in the Macintosh. When an empty string is set in the TXNObject, + * the font attributes are cleared. The fix is to reset them. + */ + if (OS.TXNDataSize (txnObject) / 2 == 0) setFontStyle (font); + } + } + Point newSelection = getSelection (); + if (!cut || !oldSelection.equals (newSelection)) sendModifyEvent (true); +} + +Color defaultBackground () { + return display.getSystemColor (SWT.COLOR_LIST_BACKGROUND); +} + +Color defaultForeground () { + return display.getSystemColor (SWT.COLOR_LIST_FOREGROUND); +} + +void deregister () { + super.deregister (); + if (frameHandle != 0) display.removeWidget (frameHandle); +} + +boolean dragDetect (int x, int y, boolean filter, boolean [] consume) { + if (filter) { + Point selection = getSelection (); + if (selection.x != selection.y) { + int position = getPosition (x, y); + if (selection.x <= position && position < selection.y) { + if (super.dragDetect (x, y, filter, consume)) { + if (consume != null) consume [0] = true; + return true; + } + } + } + return false; + } + return super.dragDetect (x, y, filter, consume); +} + +void drawWidget (int control, int context, int damageRgn, int visibleRgn, int theEvent) { + if ((style & SWT.SEARCH) == 0 && (style & SWT.SINGLE) != 0 && message.length () > 0) { + if (!hasFocus () && getCharCount () == 0) { + GCData data = new GCData (); + data.paintEvent = theEvent; + data.visibleRgn = visibleRgn; + GC gc = GC.carbon_new (this, data); + Display display = getDisplay (); + short depth = (short)display.getDepth (); + RGBColor rgb = new RGBColor (); + OS.GetThemeTextColor ((short)OS.kThemeTextColorPushButtonInactive, depth, true, rgb); + float red = ((rgb.red >> 8) & 0xFF) / 255f; + float green = ((rgb.green >> 8) & 0xFF) / 255f; + float blue = ((rgb.blue >> 8) & 0xFF) / 255f; + Color color = Color.carbon_new (display, new float[]{red, green, blue, 1}); + gc.setForeground (color); + Rect rect = inset (); + gc.drawText (message, rect.left, rect.top); + gc.dispose (); + } + } + super.drawWidget(control, context, damageRgn, visibleRgn, theEvent); +} + +int focusPart () { + if ((style & SWT.SEARCH) != 0) return OS.kControlEditTextPart; + return super.focusPart (); +} + +String [] getAxAttributes () { + return AX_ATTRIBUTES; +} + +public int getBorderWidth () { + checkWidget(); + if (hasBorder ()) { + int [] outMetric = new int [1]; + OS.GetThemeMetric (OS.kThemeMetricEditTextFrameOutset, outMetric); + return outMetric [0]; + } + return 0; +} + +/** + * Returns the line number of the caret. + * <p> + * The line number of the caret is returned. + * </p> + * + * @return the line number + * + * @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 getCaretLineNumber () { + checkWidget(); + if ((style & SWT.SINGLE) != 0) return 0; + return (getTopPixel () + getCaretLocation ().y) / getLineHeight (); +} + +/** + * Returns a point describing the receiver's location relative + * to its parent (or its display if its parent is null). + * <p> + * The location of the caret is returned. + * </p> + * + * @return a point, the location of the caret + * + * @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 Point getCaretLocation () { + checkWidget(); + if (txnObject == 0) { + //TODO - caret location for unicode text + return new Point (0, 0); + } + CGPoint oPoint = new CGPoint (); + int [] oStartOffset = new int [1], oEndOffset = new int [1]; + OS.TXNGetSelection (txnObject, oStartOffset, oEndOffset); + OS.TXNOffsetToHIPoint (txnObject, oStartOffset [0], oPoint); + Rect oViewRect = new Rect (); + OS.TXNGetViewRect (txnObject, oViewRect); + return new Point ((int) oPoint.x - oViewRect.left, (int) oPoint.y - oViewRect.top); +} + +/** + * Returns the character position of the caret. + * <p> + * Indexing is zero based. + * </p> + * + * @return the position of the caret + * + * @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 getCaretPosition () { + checkWidget(); + if (txnObject == 0) { + return getSelection ().x; + } + int [] oStartOffset = new int [1], oEndOffset = new int [1]; + OS.TXNGetSelection (txnObject, oStartOffset, oEndOffset); + return oStartOffset [0]; +} + +/** + * Returns the number of characters. + * + * @return number of characters in the widget + * + * @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 getCharCount () { + checkWidget (); + if (txnObject == 0) { + int [] ptr = new int [1]; + int result = OS.GetControlData (handle, (short)OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, ptr, null); + if (result != OS.noErr) return 0; + int length = OS.CFStringGetLength (ptr [0]); + OS.CFRelease (ptr[0]); + return length; + } + return OS.TXNDataSize (txnObject) / 2; +} + +/** + * Returns the double click enabled flag. + * <p> + * The double click flag enables or disables the + * default action of the text widget when the user + * double clicks. + * </p> + * + * @return whether or not double click is enabled + * + * @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 getDoubleClickEnabled () { + checkWidget(); + return doubleClick; +} + +/** + * Returns the echo character. + * <p> + * The echo character is the character that is + * displayed when the user enters text or the + * text is changed by the programmer. + * </p> + * + * @return the echo character + * + * @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 #setEchoChar + */ +public char getEchoChar () { + checkWidget(); + return echoCharacter; +} + +/** + * Returns the editable state. + * + * @return whether or not the receiver is editable + * + * @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 getEditable () { + checkWidget(); + return (style & SWT.READ_ONLY) == 0; +} + +Rect getInset () { + if ((style & SWT.SEARCH) != 0) return display.searchTextInset; + if (txnObject != 0) return super.getInset (); + return display.editTextInset; +} + +/** + * Returns the number of lines. + * + * @return the number of lines in the widget + * + * @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 getLineCount () { + checkWidget(); + if ((style & SWT.SINGLE) != 0) return 1; + int [] oLineTotal = new int [1]; + OS.TXNGetLineCount (txnObject, oLineTotal); + return oLineTotal [0]; +} + +/** + * Returns the line delimiter. + * + * @return a string that is the line delimiter + * + * @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 #DELIMITER + */ +public String getLineDelimiter () { + checkWidget(); + return DELIMITER; +} + +/** + * Returns the height of a line. + * + * @return the height of a row of 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 int getLineHeight () { + checkWidget(); + if (txnObject == 0) { + return textExtent (new char[]{' '}, 0).y; + } + int [] oLineWidth = new int [1], oLineHeight = new int [1]; + OS.TXNGetLineMetrics (txnObject, 0, oLineWidth, oLineHeight); + return OS.Fix2Long (oLineHeight [0]); +} + +/** + * Returns the orientation of the receiver, which will be one of the + * constants <code>SWT.LEFT_TO_RIGHT</code> or <code>SWT.RIGHT_TO_LEFT</code>. + * + * @return the orientation style + * + * @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 2.1.2 + */ +public int getOrientation () { + checkWidget(); + return style & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT); +} + +/** + * Returns the widget message. The message text is displayed + * as a hint for the user, indicating the purpose of the field. + * <p> + * Typically this is used in conjunction with <code>SWT.SEARCH</code>. + * </p> + * + * @return the widget message + * + * @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 3.3 + */ +public String getMessage () { + checkWidget (); + return message; +} + +int getPosition (int x, int y) { +// checkWidget (); + if (txnObject == 0) return -1; + int [] oOffset = new int [1]; + Rect oViewRect = new Rect (); + OS.TXNGetViewRect (txnObject, oViewRect); + CGPoint iPoint = new CGPoint (); + iPoint.x = x + oViewRect.left; + iPoint.y = y + oViewRect.top; + return OS.TXNHIPointToOffset (txnObject, iPoint, oOffset) == OS.noErr ? oOffset [0] : -1; +} + +/*public*/ int getPosition (Point point) { + checkWidget (); + if (point == null) error (SWT.ERROR_NULL_ARGUMENT); + return getPosition (point.x, point.y); +} + +/** + * Returns a <code>Point</code> whose x coordinate is the + * character position representing the start of the selected + * text, and whose y coordinate is the character position + * representing the end of the selection. An "empty" selection + * is indicated by the x and y coordinates having the same value. + * <p> + * Indexing is zero based. The range of a selection is from + * 0..N where N is the number of characters in the widget. + * </p> + * + * @return a point representing the selection start and end + * + * @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 Point getSelection () { + checkWidget(); + if (txnObject == 0) { + ControlEditTextSelectionRec selection; + if (this.selection != null) { + selection = this.selection; + } else { + selection = new ControlEditTextSelectionRec (); + OS.GetControlData (handle, (short) OS.kControlEntireControl, OS.kControlEditTextSelectionTag, 4, selection, null); + } + return new Point (selection.selStart, selection.selEnd); + } else { + int [] oStartOffset = new int [1], oEndOffset = new int [1]; + OS.TXNGetSelection (txnObject, oStartOffset, oEndOffset); + return new Point (oStartOffset [0], oEndOffset [0]); + } +} + +/** + * Returns the number of selected characters. + * + * @return the number of selected characters. + * + * @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 getSelectionCount () { + checkWidget(); + if (txnObject == 0) { + Point selection = getSelection (); + return selection.y - selection.x; + } else { + int [] oStartOffset = new int [1], oEndOffset = new int [1]; + OS.TXNGetSelection (txnObject, oStartOffset, oEndOffset); + return oEndOffset [0] - oStartOffset [0]; + } +} + +/** + * Gets the selected text, or an empty string if there is no current selection. + * + * @return the selected 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 getSelectionText () { + checkWidget(); + if (txnObject == 0) { + Point selection = getSelection (); + if (selection.x == selection.y) return ""; + return new String (getEditText (selection.x, selection.y - 1)); + } else { + return getTXNText (OS.kTXNUseCurrentSelection, OS.kTXNUseCurrentSelection); + } +} + +/** + * Returns the number of tabs. + * <p> + * Tab stop spacing is specified in terms of the + * space (' ') character. The width of a single + * tab stop is the pixel width of the spaces. + * </p> + * + * @return the number of tab characters + * + * @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 getTabs () { + checkWidget(); + return tabs; +} + +/** + * Returns the widget text. + * <p> + * The text for a text widget is the characters in the widget, or + * an empty string if this has never been set. + * </p> + * + * @return the widget 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 (txnObject == 0) { + return new String (getEditText ()); + } else { + return getTXNText (OS.kTXNStartOffset, OS.kTXNEndOffset); + } +} + +/** + * Returns a range of text. Returns an empty string if the + * start of the range is greater than the end. + * <p> + * Indexing is zero based. The range of + * a selection is from 0..N-1 where N is + * the number of characters in the widget. + * </p> + * + * @param start the start of the range + * @param end the end of the range + * @return the range of 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 (int start, int end) { + checkWidget (); + if (!(start <= end && 0 <= end)) return ""; + if (txnObject == 0) { + return new String (getEditText (start, end)); + } else { + int length = OS.TXNDataSize (txnObject) / 2; + end = Math.min (end, length - 1); + if (start > end) return ""; + start = Math.max (0, start); + return getTXNText (start, end + 1); + } +} + +char [] getEditText () { + int [] ptr = new int [1]; + int [] actualSize = new int [1]; + int result = OS.GetControlData (handle, (short)OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, ptr, actualSize); + if (result != OS.noErr) return new char [0]; + int length = OS.CFStringGetLength (ptr [0]); + CFRange range = new CFRange (); + range.length = length; + char [] buffer = new char [range.length]; + if (hiddenText != null) { + hiddenText.getChars (0, range.length, buffer, 0); + } else { + OS.CFStringGetCharacters (ptr [0], range, buffer); + } + OS.CFRelease (ptr [0]); + return buffer; +} + +char [] getEditText (int start, int end) { + int [] ptr = new int [1]; + int [] actualSize = new int [1]; + int result = OS.GetControlData (handle, (short)OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, ptr, actualSize); + if (result != OS.noErr) return new char [0]; + int length = OS.CFStringGetLength (ptr [0]); + end = Math.min (end, length - 1); + if (start > end) return new char [0]; + start = Math.max (0, start); + CFRange range = new CFRange (); + range.location = start; + range.length = Math.max (0, end - start + 1); + char [] buffer = new char [range.length]; + if (hiddenText != null) { + hiddenText.getChars (range.location, range.location + range.length, buffer, 0); + } else { + OS.CFStringGetCharacters (ptr [0], range, buffer); + } + OS.CFRelease (ptr [0]); + return buffer; +} + +/** + * Returns the maximum number of characters that the receiver is capable of holding. + * <p> + * If this has not been changed by <code>setTextLimit()</code>, + * it will be the constant <code>Text.LIMIT</code>. + * </p> + * + * @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 + */ +public int getTextLimit () { + checkWidget(); + return textLimit; +} + +/** + * Returns the zero-relative index of the line which is currently + * at the top of the receiver. + * <p> + * This index can change when lines are scrolled or new lines are added or removed. + * </p> + * + * @return the index of the top line + * + * @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 getTopIndex () { + checkWidget(); + if ((style & SWT.SINGLE) != 0) return 0; + return getTopPixel () / getLineHeight (); +} + +/** + * Returns the top pixel. + * <p> + * The top pixel is the pixel position of the line + * that is currently at the top of the widget. On + * some platforms, a text widget can be scrolled by + * pixels instead of lines so that a partial line + * is displayed at the top of the widget. + * </p><p> + * The top pixel changes when the widget is scrolled. + * The top pixel does not include the widget trimming. + * </p> + * + * @return the pixel position of the top line + * + * @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 getTopPixel () { + checkWidget(); + if ((style & SWT.SINGLE) != 0) return 0; + CGRect rect = new CGRect (); + OS.TXNGetHIRect (txnObject, OS.kTXNDestinationRectKey, rect); + int destY = (int) rect.y; + OS.TXNGetHIRect (txnObject, OS.kTXNTextRectKey, rect); + return destY - (int) rect.y; +} + +char [] getTXNChars (int iStartOffset, int iEndOffset) { + int [] oDataHandle = new int [1]; + OS.TXNGetData (txnObject, iStartOffset, iEndOffset, oDataHandle); + if (oDataHandle [0] == 0) return new char [0]; + int length = OS.GetHandleSize (oDataHandle [0]); + if (length == 0) return new char [0]; + int [] ptr = new int [1]; + OS.HLock (oDataHandle [0]); + OS.memmove (ptr, oDataHandle [0], 4); + char [] buffer = new char [length / 2]; + OS.memmove (buffer, ptr [0], length); + OS.HUnlock (oDataHandle[0]); + OS.DisposeHandle (oDataHandle[0]); + return buffer; +} + +String getTXNText (int iStartOffset, int iEndOffset) { + return new String (getTXNChars (iStartOffset, iEndOffset)); +} + +void hookEvents () { + super.hookEvents (); + if ((style & SWT.SEARCH) != 0) { + int searchProc = display.searchProc; + int [] mask = new int [] { + OS.kEventClassSearchField, OS.kEventSearchFieldCancelClicked, + OS.kEventClassSearchField, OS.kEventSearchFieldSearchClicked, + }; + int controlTarget = OS.GetControlEventTarget (handle); + OS.InstallEventHandler (controlTarget, searchProc, mask.length / 2, mask, handle, null); + } + if (frameHandle != 0) { + int controlProc = display.controlProc; + int [] mask = new int [] { + OS.kEventClassControl, OS.kEventControlDraw, + }; + int controlTarget = OS.GetControlEventTarget (frameHandle); + OS.InstallEventHandler (controlTarget, controlProc, mask.length / 2, mask, frameHandle, null); + } +} + +Rect inset () { + if ((style & SWT.SEARCH) != 0) return super.inset (); + if ((style & SWT.SINGLE) != 0 && (style & SWT.BORDER) == 0) { + Rect rect = new Rect (); + rect.left = rect.top = rect.right = rect.bottom = 1; + return rect; + } + if ((style & SWT.MULTI) != 0 && (style & SWT.BORDER) != 0) { + int [] outMetric = new int [1]; + OS.GetThemeMetric (OS.kThemeMetricFocusRectOutset, outMetric); + Rect rect = new Rect (); + rect.left += outMetric [0]; + rect.top += outMetric [0]; + rect.right += outMetric [0]; + rect.bottom += outMetric [0]; + OS.GetThemeMetric (OS.kThemeMetricEditTextFrameOutset, outMetric); + rect.left += outMetric [0]; + rect.top += outMetric [0]; + rect.right += outMetric [0]; + rect.bottom += outMetric [0]; + return rect; + } + return new Rect (); +} + +/** + * Inserts a string. + * <p> + * The old selection is replaced with the new text. + * </p> + * + * @param string the string + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string is <code>null</code></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 insert (String string) { + checkWidget(); + if (string == null) error (SWT.ERROR_NULL_ARGUMENT); + if (hooks (SWT.Verify) || filters (SWT.Verify)) { + Point selection = getSelection (); + string = verifyText (string, selection.x, selection.y, null); + if (string == null) return; + } + if (txnObject == 0) { + insertEditText (string); + } else { + setTXNText (OS.kTXNUseCurrentSelection, OS.kTXNUseCurrentSelection, string); + OS.TXNShowSelection (txnObject, false); + } + if (string.length () != 0) sendModifyEvent (true); +} + +void insertEditText (String string) { + int length = string.length (); + Point selection = getSelection (); + if (hasFocus () && hiddenText == null) { + if (textLimit != LIMIT) { + int charCount = getCharCount(); + if (charCount - (selection.y - selection.x) + length > textLimit) { + length = textLimit - charCount + (selection.y - selection.x); + } + } + char [] buffer = new char [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 (handle, OS.kControlEntireControl, OS.kControlEditTextInsertCFStringRefTag, 4, new int[] {ptr}); + OS.CFRelease (ptr); + } else { + String oldText = getText (); + if (textLimit != LIMIT) { + int charCount = oldText.length (); + if (charCount - (selection.y - selection.x) + length > textLimit) { + string = string.substring(0, textLimit - charCount + (selection.y - selection.x)); + } + } + String newText = oldText.substring (0, selection.x) + string + oldText.substring (selection.y); + setEditText (newText); + setSelection (selection.x + string.length ()); + } +} + +int kEventAccessibleGetNamedAttribute (int nextHandler, int theEvent, int userData) { + int code = OS.eventNotHandledErr; + if (txnObject != 0) { + 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 = (style & SWT.MULTI) != 0 ? OS.kAXTextAreaRole : OS.kAXTextFieldRole; + 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; + } + } else if (OS.VERSION < 0x1050 && attributeName.equals (OS.kAXFocusedAttribute)) { + OS.SetEventParameter (theEvent, OS.kEventParamAccessibleAttributeValue, OS.typeBoolean, 4, new boolean [] {hasFocus ()}); + code = OS.noErr; + } else if (attributeName.equals (OS.kAXTitleAttribute)) { + /* + * Feature of the Macintosh. For some reason, AXTextFields return their text contents + * when they are asked for their title. Since they also return their text contents + * when they are asked for their value, this causes screen readers to speak the text + * twice. The fix is to return nothing when asked for a title. + */ + code = OS.noErr; + } else if (attributeName.equals (OS.kAXValueAttribute)) { + buffer = getTXNChars (OS.kTXNStartOffset, OS.kTXNEndOffset); + stringRef [0] = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); + if (stringRef [0] != 0) { + OS.SetEventParameter (theEvent, OS.kEventParamAccessibleAttributeValue, OS.typeCFStringRef, 4, stringRef); + OS.CFRelease(stringRef [0]); + code = OS.noErr; + } + } else if (attributeName.equals (OS.kAXNumberOfCharactersAttribute)) { + OS.SetEventParameter (theEvent, OS.kEventParamAccessibleAttributeValue, OS.typeSInt32, 4, new int [] {getCharCount()}); + code = OS.noErr; + } else if (attributeName.equals (OS.kAXSelectedTextAttribute)) { + Point sel = getSelection (); + buffer = getTXNChars (sel.x, sel.y); + stringRef [0] = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); + if (stringRef [0] != 0) { + OS.SetEventParameter (theEvent, OS.kEventParamAccessibleAttributeValue, OS.typeCFStringRef, 4, stringRef); + OS.CFRelease(stringRef [0]); + code = OS.noErr; + } + } else if (attributeName.equals (OS.kAXSelectedTextRangeAttribute)) { + Point sel = getSelection (); + range = new CFRange(); + range.location = sel.x; + range.length = sel.y - sel.x; + int valueRef = OS.AXValueCreate(OS.kAXValueCFRangeType, range); + OS.SetEventParameter (theEvent, OS.kEventParamAccessibleAttributeValue, OS.typeCFTypeRef, 4, new int [] {valueRef}); + OS.CFRelease(valueRef); + code = OS.noErr; + } else if (attributeName.equals (OS.kAXStringForRangeParameterizedAttribute)) { + int valueRef [] = new int [1]; + int status = OS.GetEventParameter (theEvent, OS.kEventParamAccessibleAttributeParameter, OS.typeCFTypeRef, null, 4, null, valueRef); + if (status == OS.noErr) { + range = new CFRange(); + boolean ok = OS.AXValueGetValue(valueRef[0], OS.kAXValueCFRangeType, range); + if (ok) { + buffer = getTXNChars (range.location, range.location + range.length); + stringRef [0] = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); + if (stringRef [0] != 0) { + OS.SetEventParameter (theEvent, OS.kEventParamAccessibleAttributeValue, OS.typeCFStringRef, 4, stringRef); + OS.CFRelease(stringRef [0]); + code = OS.noErr; + } + } + } + } + } + if (accessible != null) { + code = accessible.internal_kEventAccessibleGetNamedAttribute (nextHandler, theEvent, code); + } + return code; +} + +int kEventMouseDown (int nextHandler, int theEvent, int userData) { + int result = super.kEventMouseDown (nextHandler, theEvent, userData); + if (result == OS.noErr) return result; + if (!doubleClick) { + int [] clickCount = new int [1]; + OS.GetEventParameter (theEvent, OS.kEventParamClickCount, OS.typeUInt32, null, 4, null, clickCount); + if (clickCount [0] > 1) return OS.noErr; + } + return result; +} + +int kEventSearchFieldCancelClicked (int nextHandler, int theEvent, int userData) { + int result = super.kEventSearchFieldCancelClicked (nextHandler, theEvent, userData); + if (result == OS.noErr) return result; + setText (""); + Event event = new Event (); + event.detail = SWT.ICON_CANCEL; + postEvent (SWT.DefaultSelection, event); + return result; +} + +int kEventSearchFieldSearchClicked (int nextHandler, int theEvent, int userData) { + int result = super.kEventSearchFieldSearchClicked (nextHandler, theEvent, userData); + if (result == OS.noErr) return result; + Event event = new Event (); + event.detail = SWT.ICON_SEARCH; + postEvent (SWT.DefaultSelection, event); + 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 [] modifiers = new int [1]; + OS.GetEventParameter (keyboardEvent [0], OS.kEventParamKeyModifiers, OS.typeUInt32, null, 4, null, modifiers); + if (modifiers [0] == OS.cmdKey) { + int [] keyCode = new int [1]; + OS.GetEventParameter (keyboardEvent [0], OS.kEventParamKeyCode, OS.typeUInt32, null, keyCode.length * 4, null, keyCode); + switch (keyCode [0]) { + case 7: /* X */ + cut (); + return OS.noErr; + case 8: /* C */ + copy (); + return OS.noErr; + case 9: /* V */ + paste (); + return OS.noErr; + } + } + if ((style & SWT.SINGLE) != 0) { + int [] keyCode = new int [1]; + OS.GetEventParameter (keyboardEvent [0], OS.kEventParamKeyCode, OS.typeUInt32, null, keyCode.length * 4, null, keyCode); + switch (keyCode [0]) { + /* + * Feature in the Macintosh. Tab and Return characters are inserted into a + * single line TXN Object. While this may be correct platform behavior, it is + * unexpected. The fix is to avoid calling the default handler. + */ + case 76: /* KP Enter */ + case 36: { /* Return */ + postEvent (SWT.DefaultSelection); + return OS.noErr; + } + case 48: { /* Tab */ + return OS.noErr; + } + } + } + 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]) { + sendModifyEvent (false); + } + 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; + boolean paste = true; + String oldText = null; + if (hooks (SWT.Verify) || filters (SWT.Verify)) { + oldText = getClipboardText (); + if (oldText != null) { + Point selection = getSelection (); + String newText = verifyText (oldText, selection.x, selection.y, null); + if (newText == null) return; + if (!newText.equals (oldText)) { + if (txnObject == 0) { + insertEditText (newText); + } else { + setTXNText (OS.kTXNUseCurrentSelection, OS.kTXNUseCurrentSelection, newText); + OS.TXNShowSelection (txnObject, false); + } + paste = false; + } + } + } + if (paste) { + if (txnObject == 0) { + if (oldText == null) oldText = getClipboardText (); + insertEditText (oldText); + } else { + if (textLimit != LIMIT) { + if (oldText == null) oldText = getClipboardText (); + setTXNText (OS.kTXNUseCurrentSelection, OS.kTXNUseCurrentSelection, oldText); + OS.TXNShowSelection (txnObject, false); + } else { + OS.TXNPaste (txnObject); + } + } + } + sendModifyEvent (true); +} + +boolean pollTrackEvent() { + return true; +} + +void register () { + super.register (); + if (frameHandle != 0) display.addWidget (frameHandle, this); +} + +void releaseWidget () { + super.releaseWidget (); + txnObject = 0; + hiddenText = message = null; +} + +/** + * 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 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 VerifyListener + * @see #addVerifyListener + */ +public void removeVerifyListener (VerifyListener listener) { + checkWidget(); + if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); + if (eventTable == null) return; + eventTable.unhook (SWT.Verify, listener); +} + +/** + * Selects all the text in the receiver. + * + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void selectAll () { + checkWidget(); + if (txnObject == 0) { + setSelection (0, getCharCount ()); + } else { + OS.TXNSelectAll (txnObject); + } +} + +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; + String oldText = ""; + int charCount = getCharCount (); + Point selection = getSelection (); + int start = selection.x, end = selection.y; + 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: + if ((style & SWT.SINGLE) != 0) return true; + oldText = DELIMITER; + break; + default: + if (event.character != '\t' && event.character < 0x20) return true; + oldText = new String (new char [] {event.character}); + } + String newText = verifyText (oldText, start, end, event); + if (newText == null) return false; + if (charCount - (end - start) + newText.length () > textLimit) { + return false; + } + boolean result = newText == oldText; + if (newText != oldText || hiddenText != null) { + if (txnObject == 0) { + String text = new String (getEditText ()); + String leftText = text.substring (0, start); + String rightText = text.substring (end, text.length ()); + setEditText (leftText + newText + rightText); + start += newText.length (); + setSelection (new Point (start, start)); + result = false; + } else { + setTXNText (start, end, newText); + } + } + /* + * 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. + */ + sendModifyEvent (false); + return result; +} + +void sendModifyEvent (boolean send) { + String string = OS.kAXSelectedTextChangedNotification; + char [] buffer = new char [string.length ()]; + string.getChars (0, buffer.length, buffer, 0); + int stringRef = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); + OS.AXNotificationHIObjectNotify(stringRef, handle, 0); + OS.CFRelease(stringRef); + string = OS.kAXValueChangedNotification; + buffer = new char [string.length ()]; + string.getChars (0, buffer.length, buffer, 0); + stringRef = OS.CFStringCreateWithCharacters (OS.kCFAllocatorDefault, buffer, buffer.length); + OS.AXNotificationHIObjectNotify(stringRef, handle, 0); + OS.CFRelease(stringRef); + + if (send) { + sendEvent (SWT.Modify); + } else { + postEvent (SWT.Modify); + } +} + +void setBackground (float [] color) { + if (txnObject == 0) { + super.setBackground (color); + } else { + int colorspace = OS.CGColorSpaceCreateDeviceRGB (); + int colorRef = OS.CGColorCreate (colorspace, color); + OS.HITextViewSetBackgroundColor (handle, colorRef); + OS.CGColorRelease (colorRef); + OS.CGColorSpaceRelease (colorspace); + } +} + +void setBackground (int control, float [] color) { + /* + * Bug in the Macintosh. For some reason, when the same background + * color is set in two instances of an EditUnicodeTextControl, the + * color is not set in the second instance. It seems that the edit + * control is checking globally that the last color that was set is the + * same. The fix is to ensure the that the color that is about to + * be set is not the same as the last globally remembered color by + * first setting it to black, then white and finally the color. + */ + if (handle == control) { + ControlFontStyleRec fontStyle = new ControlFontStyleRec (); + OS.GetControlData (control, (short) OS.kControlEntireControl, OS.kControlFontStyleTag, ControlFontStyleRec.sizeof, fontStyle, null); + fontStyle.flags |= OS.kControlUseBackColorMask; + OS.SetControlFontStyle (control, fontStyle); + fontStyle.backColor_red = fontStyle.backColor_green = fontStyle.backColor_blue = (short) 0xffff; + OS.SetControlFontStyle (control, fontStyle); + } + super.setBackground (control, color); +} + +int setBounds (int x, int y, int width, int height, boolean move, boolean resize, boolean events) { + Rectangle bounds = null; + if (txnObject == 0 && 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. + */ + Rect inset = getInset (); + int minWidth = inset.left + inset.right; + if (bounds.width <= minWidth && width > minWidth) { + if (hasFocus ()) { + ControlEditTextSelectionRec selection = new ControlEditTextSelectionRec (); + if (OS.GetControlData (handle, (short) OS.kControlEntireControl, OS.kControlEditTextSelectionTag, 4, selection, null) == OS.noErr) { + OS.SetControlData (handle, OS.kControlEntireControl, OS.kControlEditTextSelectionTag, 4, selection); + } + } else { + int [] ptr = new int [1]; + if (OS.GetControlData (handle, (short)OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, ptr, null) == OS.noErr) { + OS.SetControlData (handle, OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, ptr); + } + if (ptr [0] != 0) OS.CFRelease (ptr [0]); + } + } + } + /* + * Bug in the Macintosh. HIScrollViewCreate() fails if no scroll bit is + * specified. In order to get horizontal scrolling in a single line text, a + * scroll view is created with the vertical bit set and the scroll bars + * are set to auto hide. But calling HIScrollViewSetScrollBarAutoHide() + * before the view has been resized still leaves space for the vertical + * scroll bar. The fix is to call HIScrollViewSetScrollBarAutoHide() + * once the widget has been resized. + */ + if (scrolledHandle != 0 && (style & (SWT.H_SCROLL | SWT.V_SCROLL)) == 0) { + OS.HIScrollViewSetScrollBarAutoHide (scrolledHandle, true); + } + return result; +} + +/** + * Sets the double click enabled flag. + * <p> + * The double click flag enables or disables the + * default action of the text widget when the user + * double clicks. + * </p><p> + * Note: This operation is a hint and is not supported on + * platforms that do not have this concept. + * </p> + * + * @param doubleClick the new double click flag + * + * @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 setDoubleClickEnabled (boolean doubleClick) { + checkWidget(); + this.doubleClick = doubleClick; +} + +/** + * Sets the echo character. + * <p> + * The echo character is the character that is + * displayed when the user enters text or the + * text is changed by the programmer. Setting + * the echo character to '\0' clears the echo + * character and redraws the original text. + * If for any reason the echo character is invalid, + * or if the platform does not allow modification + * of the echo character, the default echo character + * for the platform is used. + * </p> + * + * @param echo the new echo character + * + * @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 setEchoChar (char echo) { + checkWidget(); + if ((style & SWT.MULTI) != 0) return; + if (txnObject == 0) { + if ((style & SWT.PASSWORD) == 0) { + Point selection = getSelection (); + String text = getText (); + echoCharacter = echo; + setEditText (text); + setSelection (selection); + } + } else { + OS.TXNEchoMode (txnObject, echo, OS.kTextEncodingMacUnicode, echo != '\0'); + } + echoCharacter = echo; +} + +/** + * Sets the editable state. + * + * @param editable the new editable 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 setEditable (boolean editable) { + checkWidget(); + if (editable) { + style &= ~SWT.READ_ONLY; + } else { + style |= SWT.READ_ONLY; + } + if (txnObject == 0) { + OS.SetControlData (handle, OS.kControlEntireControl, OS.kControlEditTextLockedTag, 1, new byte [] {(byte) ((style & SWT.READ_ONLY) != 0 ? 1 : 0)}); + } else { + OS.TXNSetTXNObjectControls (txnObject, false, 1, new int [] {OS.kTXNIOPrivilegesTag}, new int [] {((style & SWT.READ_ONLY) != 0) ? 1 : 0}); + } +} + +void setForeground (float [] color) { + if (txnObject == 0) { + super.setForeground (color); + } else { + int ptr2 = OS.NewPtr (OS.kTXNQDFontColorAttributeSize); + RGBColor rgb; + if (color == null) { + rgb = new RGBColor (); + } else { + rgb = toRGBColor (color); + } + OS.memmove (ptr2, rgb, RGBColor.sizeof); + int [] attribs = new int [] { + OS.kTXNQDFontColorAttribute, + OS.kTXNQDFontColorAttributeSize, + ptr2, + }; + int ptr1 = OS.NewPtr (attribs.length * 4); + OS.memmove (ptr1, attribs, attribs.length * 4); + boolean readOnly = (style & SWT.READ_ONLY) != 0; + int [] tag = new int [] {OS.kTXNIOPrivilegesTag}; + if (readOnly) OS.TXNSetTXNObjectControls (txnObject, false, 1, tag, new int [] {0}); + OS.TXNSetTypeAttributes (txnObject, attribs.length / 3, ptr1, 0, 0); + if (readOnly) OS.TXNSetTXNObjectControls (txnObject, false, 1, tag, new int [] {1}); + OS.DisposePtr (ptr1); + OS.DisposePtr (ptr2); + } +} + +void setFontStyle (Font font) { + if (txnObject == 0) { + super.setFontStyle (font); + } else { + int family = OS.kTXNDefaultFontName, fontStyle = OS.kTXNDefaultFontStyle, size = OS.kTXNDefaultFontSize; + if (font != null) { + short [] id = new short [1], s = new short [1]; + OS.FMGetFontFamilyInstanceFromFont (font.handle, id, s); + family = id [0]; + fontStyle = s [0] | font.style; + size = OS.X2Fix (font.size); + } + int [] attribs = new int [] { + OS.kTXNQDFontSizeAttribute, + OS.kTXNQDFontSizeAttributeSize, + size, + OS.kTXNQDFontStyleAttribute, + OS.kTXNQDFontStyleAttributeSize, + fontStyle, + OS.kTXNQDFontFamilyIDAttribute, + OS.kTXNQDFontFamilyIDAttributeSize, + family, + }; + int ptr = OS.NewPtr (attribs.length * 4); + OS.memmove (ptr, attribs, attribs.length * 4); + boolean readOnly = (style & SWT.READ_ONLY) != 0; + int [] tag = new int [] {OS.kTXNIOPrivilegesTag}; + if (readOnly) OS.TXNSetTXNObjectControls (txnObject, false, 1, tag, new int [] {0}); + OS.TXNSetTypeAttributes (txnObject, attribs.length / 3, ptr, 0, 0); + if (readOnly) OS.TXNSetTXNObjectControls (txnObject, false, 1, tag, new int [] {1}); + OS.DisposePtr (ptr); + } +} + +/** + * Sets the orientation of the receiver, which must be one + * of the constants <code>SWT.LEFT_TO_RIGHT</code> or <code>SWT.RIGHT_TO_LEFT</code>. + * <p> + * Note: This operation is a hint and is not supported on + * platforms that do not have this concept. + * </p> + * + * @param orientation new orientation style + * + * @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 2.1.2 + */ +public void setOrientation (int orientation) { + checkWidget(); +} + +/** + * Sets the widget message. The message text is displayed + * as a hint for the user, indicating the purpose of the field. + * <p> + * Typically this is used in conjunction with <code>SWT.SEARCH</code>. + * </p> + * + * @param message the new message + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the message is null</li> + * </ul> + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + * + * @since 3.3 + */ +public void setMessage (String message) { + checkWidget (); + if (message == null) error (SWT.ERROR_NULL_ARGUMENT); + this.message = message; + if ((style & SWT.SEARCH) != 0) { + char [] buffer = new char [message.length ()]; + message.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.HISearchFieldSetDescriptiveText (handle, ptr); + OS.CFRelease (ptr); + } else { + redraw (false); + } +} + +/** + * Sets the selection. + * <p> + * Indexing is zero based. The range of + * a selection is from 0..N where N is + * the number of characters in the widget. + * </p><p> + * Text selections are specified in terms of + * caret positions. In a text widget that + * contains N characters, there are N+1 caret + * positions, ranging from 0..N. This differs + * from other functions that address character + * position such as getText () that use the + * regular array indexing rules. + * </p> + * + * @param start new caret position + * + * @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 start) { + checkWidget(); + setSelection (start, start); +} + +/** + * Sets the selection to the range specified + * by the given start and end indices. + * <p> + * Indexing is zero based. The range of + * a selection is from 0..N where N is + * the number of characters in the widget. + * </p><p> + * Text selections are specified in terms of + * caret positions. In a text widget that + * contains N characters, there are N+1 caret + * positions, ranging from 0..N. This differs + * from other functions that address character + * position such as getText () that use the + * usual array indexing rules. + * </p> + * + * @param start the start of the range + * @param end the end of the range + * + * @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 start, int end) { + checkWidget(); + if (txnObject == 0) { + int length = getCharCount (); + ControlEditTextSelectionRec selection = new ControlEditTextSelectionRec (); + selection.selStart = (short) Math.min (Math.max (Math.min (start, end), 0), length); + selection.selEnd = (short) Math.min (Math.max (Math.max (start, end), 0), length); + if (hasFocus ()) { + OS.SetControlData (handle, OS.kControlEntireControl, OS.kControlEditTextSelectionTag, 4, selection); + } else { + this.selection = selection; + } + } else { + int length = OS.TXNDataSize (txnObject) / 2; + int nStart = Math.min (Math.max (Math.min (start, end), 0), length); + int nEnd = Math.min (Math.max (Math.max (start, end), 0), length); + OS.TXNSetSelection (txnObject, nStart, nEnd); + OS.TXNShowSelection (txnObject, false); + } +} + +/** + * Sets the selection to the range specified + * by the given point, where the x coordinate + * represents the start index and the y coordinate + * represents the end index. + * <p> + * Indexing is zero based. The range of + * a selection is from 0..N where N is + * the number of characters in the widget. + * </p><p> + * Text selections are specified in terms of + * caret positions. In a text widget that + * contains N characters, there are N+1 caret + * positions, ranging from 0..N. This differs + * from other functions that address character + * position such as getText () that use the + * usual array indexing rules. + * </p> + * + * @param selection the point + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the point is null</li> + * </ul> + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setSelection (Point selection) { + checkWidget(); + if (selection == null) error (SWT.ERROR_NULL_ARGUMENT); + setSelection (selection.x, selection.y); +} + +/** + * Sets the number of tabs. + * <p> + * Tab stop spacing is specified in terms of the + * space (' ') character. The width of a single + * tab stop is the pixel width of the spaces. + * </p> + * + * @param tabs the number of tabs + * + * </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 setTabs (int tabs) { + checkWidget(); + if (this.tabs == tabs) return; + if (txnObject == 0) return; + this.tabs = tabs; + TXNTab tab = new TXNTab (); + tab.value = (short) (textExtent (new char[]{' '}, 0).x * tabs); + int [] tags = new int [] {OS.kTXNTabSettingsTag}; + int [] datas = new int [1]; + OS.memmove (datas, tab, TXNTab.sizeof); + OS.TXNSetTXNObjectControls (txnObject, false, tags.length, tags, datas); +} + +/** + * Sets the contents of the receiver to the given string. If the receiver has style + * SINGLE and the argument contains multiple lines of text, the result of this + * operation is undefined and may vary from platform to platform. + * + * @param string the new text + * + * @exception IllegalArgumentException <ul> + * <li>ERROR_NULL_ARGUMENT - if the string 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 (hooks (SWT.Verify) || filters (SWT.Verify)) { + string = verifyText (string, 0, getCharCount (), null); + if (string == null) return; + } + if (txnObject == 0) { + setEditText (string); + } else { + setTXNText (OS.kTXNStartOffset, OS.kTXNEndOffset, string); + OS.TXNSetSelection (txnObject, OS.kTXNStartOffset, OS.kTXNStartOffset); + OS.TXNShowSelection (txnObject, false); + } + sendModifyEvent (true); +} + +void setEditText (String string) { + char [] buffer; + if ((style & SWT.PASSWORD) == 0 && echoCharacter != '\0') { + hiddenText = string; + buffer = new char [Math.min(hiddenText.length (), textLimit)]; + for (int i = 0; i < buffer.length; i++) buffer [i] = echoCharacter; + } else { + hiddenText = null; + buffer = new char [Math.min(string.length (), textLimit)]; + 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 (handle, OS.kControlEntireControl, OS.kControlEditTextCFStringTag, 4, new int[] {ptr}); + OS.CFRelease (ptr); + if (selection != null) selection = null; +} + +void setTXNText (int iStartOffset, int iEndOffset, String string) { + int length = string.length (); + if (textLimit != LIMIT) { + int charCount = OS.TXNDataSize (txnObject) / 2; + int start = iStartOffset, end = iEndOffset; + if (iStartOffset == OS.kTXNUseCurrentSelection || iEndOffset == OS.kTXNUseCurrentSelection) { + int [] oStartOffset = new int [1], oEndOffset = new int [1]; + OS.TXNGetSelection (txnObject, oStartOffset, oEndOffset); + start = oStartOffset [0]; + end = oEndOffset [0]; + } else { + if (iStartOffset == OS.kTXNEndOffset) start = charCount; + if (iEndOffset == OS.kTXNEndOffset) end = charCount; + } + if (charCount - (end - start) + length > textLimit) length = textLimit - charCount + (end - start); + } + char [] buffer = new char [length]; + string.getChars (0, buffer.length, buffer, 0); + boolean readOnly = (style & SWT.READ_ONLY) != 0; + int [] tag = new int [] {OS.kTXNIOPrivilegesTag}; + if (readOnly) OS.TXNSetTXNObjectControls (txnObject, false, 1, tag, new int [] {0}); + OS.TXNSetData (txnObject, OS.kTXNUnicodeTextData, buffer, buffer.length * 2, iStartOffset, iEndOffset); + if (readOnly) OS.TXNSetTXNObjectControls (txnObject, false, 1, tag, new int [] {1}); + + /* + * Feature in the Macintosh. When an empty string is set in the TXNObject, + * the font attributes are cleared. The fix is to reset them. + */ + if (OS.TXNDataSize (txnObject) / 2 == 0) setFontStyle (font); +} + +void setZOrder () { + if (frameHandle != 0) { + int child = scrolledHandle != 0 ? scrolledHandle : handle; + OS.HIViewAddSubview (frameHandle, child); + HILayoutInfo layout = new HILayoutInfo (); + layout.version = 0; + OS.HIViewGetLayoutInfo (child, layout); + HISideBinding biding = layout.binding.top; + biding.toView = 0; + biding.kind = OS.kHILayoutBindMin; + biding.offset = 0; + biding = layout.binding.left; + biding.toView = 0; + biding.kind = OS.kHILayoutBindMin; + biding.offset = 0; + biding = layout.binding.bottom; + biding.toView = 0; + biding.kind = OS.kHILayoutBindMax; + biding.offset = 0; + biding = layout.binding.right; + biding.toView = 0; + biding.kind = OS.kHILayoutBindMax; + biding.offset = 0; + CGRect r = new CGRect(); + r.width = r.height = 100; + OS.HIViewSetFrame (frameHandle, r); + Rect inset = inset (); + r.x += inset.left; + r.y += inset.top; + r.width -= inset.left + inset.right; + r.height -= inset.top + inset.bottom; + OS.HIViewSetFrame (child, r); + OS.HIViewSetLayoutInfo (child, layout); + } + super.setZOrder (); +} + +/** + * Sets the maximum number of characters that the receiver + * is capable of holding to be the argument. + * <p> + * Instead of trying to set the text limit to zero, consider + * creating a read-only text widget. + * </p><p> + * To reset this value to the default, use <code>setTextLimit(Text.LIMIT)</code>. + * Specifying a limit value larger than <code>Text.LIMIT</code> sets the + * receiver's limit to <code>Text.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 + */ +public void setTextLimit (int limit) { + checkWidget(); + if (limit == 0) error (SWT.ERROR_CANNOT_BE_ZERO); + textLimit = limit; +} + +/** + * Sets the zero-relative index of the line which is currently + * at the top of the receiver. This index can change when lines + * are scrolled or new lines are added and removed. + * + * @param index the index of the top item + * + * @exception SWTException <ul> + * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> + * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> + * </ul> + */ +public void setTopIndex (int index) { + checkWidget(); + if ((style & SWT.SINGLE) != 0) return; + int[] event = new int[1]; + OS.CreateEvent (0, OS.kEventClassScrollable, OS.kEventScrollableScrollTo, 0.0, 0, event); + if (event [0] != 0) { + int lineHeight = getLineHeight (); + CGPoint pt = new CGPoint (); + pt.y = lineHeight * Math.min(getLineCount (), index); + OS.SetEventParameter (event[0], OS.kEventParamOrigin, OS.typeHIPoint, CGPoint.sizeof, pt); + OS.SendEventToEventTarget (event[0], OS.GetControlEventTarget (handle)); + OS.ReleaseEvent (event[0]); + } +} +/** + * Shows the selection. + * <p> + * If the selection is already showing + * in the receiver, this method simply returns. Otherwise, + * lines are scrolled until the selection is visible. + * </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 showSelection () { + checkWidget(); + if (txnObject == 0) { + setSelection (getSelection()); + } else { + OS.TXNShowSelection (txnObject, false); + } +} + +int topHandle () { + if (frameHandle != 0) return frameHandle; + return super.topHandle (); +} + +int traversalCode (int key, int theEvent) { + int bits = super.traversalCode (key, theEvent); + if ((style & SWT.READ_ONLY) != 0) return bits; + if ((style & SWT.MULTI) != 0) { + bits &= ~SWT.TRAVERSE_RETURN; + if (key == 48 /* Tab */ && theEvent != 0) { + int [] modifiers = new int [1]; + OS.GetEventParameter (theEvent, OS.kEventParamKeyModifiers, OS.typeUInt32, null, 4, null, modifiers); + boolean next = (modifiers [0] & OS.shiftKey) == 0; + if (next && (modifiers [0] & OS.controlKey) == 0) { + bits &= ~(SWT.TRAVERSE_TAB_NEXT | SWT.TRAVERSE_TAB_PREVIOUS); + } + } + } + return bits; +} + +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; + } + /* + * 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; +} + +} |