diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/widgets/Text.java')
-rwxr-xr-x | bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/widgets/Text.java | 1615 |
1 files changed, 0 insertions, 1615 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/widgets/Text.java b/bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/widgets/Text.java deleted file mode 100755 index 4fdf962a41..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/photon/org/eclipse/swt/widgets/Text.java +++ /dev/null @@ -1,1615 +0,0 @@ -/******************************************************************************* - * 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.*; -import org.eclipse.swt.internal.photon.*; -import org.eclipse.swt.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.events.*; - -/** - * 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 { - char echoCharacter; - boolean ignoreChange; - String hiddenText, message; - int tabs, lastModifiedText; - PtTextCallback_t textVerify; - - /** - * 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 = '*'; - /* - * 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 = "\n"; - } - -/** - * 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)); -} - -static int checkStyle (int style) { - if ((style & SWT.SEARCH) != 0) { - style |= SWT.SINGLE | SWT.BORDER; - style &= ~SWT.PASSWORD; - } - style &= ~SWT.SEARCH; - 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; -} -public Point computeSize (int wHint, int hHint, boolean changed) { - checkWidget(); - - int [] args = new int [] {OS.Pt_ARG_WIDTH, 0, 0, OS.Pt_ARG_HEIGHT, 0, 0}; - OS.PtGetResources (handle, args.length / 3, args); - boolean wrap = (style & SWT.WRAP) != 0; - if (wrap) { - if (wHint == SWT.DEFAULT) { - OS.PtSetResource (handle, OS.Pt_ARG_MULTITEXT_WRAP_FLAGS, OS.Pt_EMT_NEWLINE, ~0); - } else { - OS.PtSetResource (handle, OS.Pt_ARG_WIDTH, wHint, 0); - } - } - int resizeFlags = OS.Pt_RESIZE_X_ALWAYS | OS.Pt_RESIZE_Y_ALWAYS; - OS.PtSetResource (handle, OS.Pt_ARG_RESIZE_FLAGS, resizeFlags, OS.Pt_RESIZE_XY_BITS); - if ((style & SWT.MULTI) != 0 || !OS.PtWidgetIsRealized (handle)) OS.PtExtentWidgetFamily (handle); - PhDim_t dim = new PhDim_t (); - OS.PtWidgetPreferredSize (handle, dim); - int width = dim.w, height = dim.h; - OS.PtSetResource (handle, OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS); - if (wrap) { - if (wHint == SWT.DEFAULT) { - int wrapFlags = OS.Pt_EMT_WORD | OS.Pt_EMT_CHAR | OS.Pt_EMT_NEWLINE; - OS.PtSetResource (handle, OS.Pt_ARG_MULTITEXT_WRAP_FLAGS, wrapFlags, ~0); - } - } - OS.PtSetResources (handle, args.length / 3, args); - - ScrollBar scroll; - int scrollWidth = (scroll = getVerticalBar ()) != null ? scroll.getSize ().x : 0; - int scrollHeight = (scroll = getHorizontalBar ()) != null ? scroll.getSize ().y : 0; - width += scrollWidth; - if (!wrap) height += scrollHeight; - - if (wHint != SWT.DEFAULT || hHint != SWT.DEFAULT) { - PhRect_t rect = new PhRect_t (); - PhArea_t area = new PhArea_t (); - rect.lr_x = (short) (wHint - 1); - rect.lr_y = (short) (hHint - 1); - OS.PtSetAreaFromWidgetCanvas (handle, rect, area); - if (wHint != SWT.DEFAULT) width = area.size_w + scrollWidth; - if (hHint != SWT.DEFAULT) height = area.size_h + scrollHeight; - } - return new Point(width, height); -} -/** - * 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(); - int [] position = {0}; - if ((style & SWT.SINGLE) != 0) { - int [] args = {OS.Pt_ARG_CURSOR_POSITION, 0, 0}; - OS.PtGetResources (handle, args.length / 3, args); - position [0] = args [1]; - } - OS.PtTextSetSelection (handle, position, position); -} -void createHandle (int index) { - state |= HANDLE; - int parentHandle = parent.parentingHandle (); - boolean hasBorder = (style & SWT.BORDER) != 0; - int textFlags = (style & SWT.READ_ONLY) != 0 ? 0 : OS.Pt_EDITABLE; - if ((style & SWT.SINGLE) != 0) { - int clazz = display.PtText; - int [] args = { - OS.Pt_ARG_FLAGS, hasBorder ? OS.Pt_HIGHLIGHTED : 0, OS.Pt_HIGHLIGHTED, - OS.Pt_ARG_FLAGS, OS.Pt_CALLBACKS_ACTIVE, OS.Pt_CALLBACKS_ACTIVE, - OS.Pt_ARG_TEXT_FLAGS, textFlags, OS.Pt_EDITABLE, - OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS, - }; - handle = OS.PtCreateWidget (clazz, parentHandle, args.length / 3, args); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - return; - } - int clazz = display.PtMultiText; - int wrapFlags = (style & SWT.WRAP) != 0 ? OS.Pt_EMT_WORD | OS.Pt_EMT_CHAR : 0; - int [] args = { - OS.Pt_ARG_FLAGS, hasBorder ? OS.Pt_HIGHLIGHTED : 0, OS.Pt_HIGHLIGHTED, - OS.Pt_ARG_FLAGS, OS.Pt_CALLBACKS_ACTIVE, OS.Pt_CALLBACKS_ACTIVE, - OS.Pt_ARG_TEXT_FLAGS, textFlags, OS.Pt_EDITABLE, - OS.Pt_ARG_MULTITEXT_WRAP_FLAGS, wrapFlags, OS.Pt_EMT_WORD | OS.Pt_EMT_CHAR, - OS.Pt_ARG_SCROLLBAR_X_DISPLAY, (style & SWT.H_SCROLL) != 0 ? OS.Pt_ALWAYS : OS.Pt_NEVER, 0, - OS.Pt_ARG_SCROLLBAR_Y_DISPLAY, (style & SWT.V_SCROLL) != 0 ? OS.Pt_ALWAYS : OS.Pt_NEVER, 0, - OS.Pt_ARG_RESIZE_FLAGS, 0, OS.Pt_RESIZE_XY_BITS, - }; - handle = OS.PtCreateWidget (clazz, parentHandle, args.length / 3, args); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - createStandardScrollBars (); -} - -void createWidget (int index) { - super.createWidget (index); -// doubleClick = true; - setTabStops (tabs = 8); - hiddenText = message = ""; - if ((style & SWT.PASSWORD) != 0) setEchoChar (PASSWORD); -} - -/** - * 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); - byte [] buffer = Converter.wcsToMbcs (null, string, false); - OS.PtTextModifyText (handle, 0, 0, -1, buffer, buffer.length); -} - -/** - * Copies the selected text. - * <p> - * The current selection is copied to the clipboard. - * </p> - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void copy () { - checkWidget(); - int [] start = new int [1], end = new int [1]; - int length = OS.PtTextGetSelection (handle, start, end); - if (length <= 0) return; - int [] args = {OS.Pt_ARG_TEXT_STRING, 0, 0}; - OS.PtGetResources (handle, args.length / 3, args); - byte[] buffer = new byte[length + 1]; - OS.memmove (buffer, args [1] + start [0], length); - int ig = OS.PhInputGroup (0); - OS.PhClipboardCopyString((short)ig, buffer); -} - -/** - * Cuts the selected text. - * <p> - * The current selection is first copied to the - * clipboard and then deleted from the widget. - * </p> - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void cut () { - checkWidget(); - int [] start = new int [1], end = new int [1]; - int length = OS.PtTextGetSelection (handle, start, end); - if (length <= 0) return; - int [] args = {OS.Pt_ARG_TEXT_STRING, 0, 0}; - OS.PtGetResources (handle, args.length / 3, args); - byte[] buffer = new byte[length + 1]; - OS.memmove (buffer, args [1] + start [0], length); - int ig = OS.PhInputGroup (0); - OS.PhClipboardCopyString((short)ig, buffer); - buffer = new byte[0]; - OS.PtTextModifyText (handle, start [0], end [0], start [0], buffer, buffer.length); -} - -void deregister () { - super.deregister (); - - /* - * Bug in Photon. Even though the Pt_CB_GOT_FOCUS callback - * is added to the multi-line text, the widget parameter - * in the callback is a child of the multi-line text. The fix - * is to register that child so that the lookup in the widget - * table will find the muti-line text. - */ - if ((style & SWT.MULTI) == 0) return; - int child = OS.PtWidgetChildBack (handle); - WidgetTable.remove (child); -} - -int defaultBackground () { - return display.TEXT_BACKGROUND; -} - -int defaultForeground () { - return display.TEXT_FOREGROUND; -} - -/** - * 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(); - //NOT DONE - NOT NEEDED - return 0; -} - -/** - * 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(); - //NOT DONE - NOT NEEDED - return null; -} - -/** - * 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(); - int [] args = {OS.Pt_ARG_CURSOR_POSITION, 0, 0}; - OS.PtGetResources (handle, args.length / 3, args); - return args [1]; -} - -/** - * 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(); - int [] args = {OS.Pt_ARG_TEXT_STRING, 0, 0}; - OS.PtGetResources (handle, args.length / 3, args); - if (args [1] == 0) return 0; - return OS.strlen (args [1]); -} - -/** - * 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(); - //NOT DONE - NOT NEEDED - return false; -} - -/** - * 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(); - int [] args = {OS.Pt_ARG_TEXT_FLAGS, 0, 0}; - OS.PtGetResources(handle, args.length / 3, args); - return (args [1] & OS.Pt_EDITABLE) != 0; -} - -/** - * 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 [] args = {OS.Pt_ARG_MULTITEXT_NUM_LINES, 0, 0}; - OS.PtGetResources(handle, args.length / 3, args); - return args [1]; -} - -/** - * 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 "\n"; -} - -/** - * 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 ((style & SWT.SINGLE) != 0) { - PhDim_t dim = new PhDim_t (); - if (!OS.PtWidgetIsRealized (handle)) OS.PtExtentWidget (handle); - OS.PtWidgetPreferredSize (handle, dim); - PhRect_t extent = new PhRect_t (); - OS.PtWidgetExtent(handle, extent); - PhRect_t canvas = new PhRect_t (); - OS.PtWidgetCanvas (handle, canvas); - int topBorder = canvas.ul_y - extent.ul_y; - int bottomBorder = extent.lr_y - canvas.lr_y; - return dim.h - topBorder - bottomBorder; - } - int ptr = OS.malloc (20); - int [] args = { - OS.Pt_ARG_MULTITEXT_QUERY_LINE, ptr, 1, - OS.Pt_ARG_MULTITEXT_LINE_SPACING, 0, 0 - }; - OS.PtGetResources (handle, args.length / 3, args); - int [] line = new int [1]; - OS.memmove (line, args [1] + 8, 4); - PhRect_t extent = new PhRect_t (); - OS.memmove (extent, line [0] + 10, 8); - OS.free(ptr); - return extent.lr_y - extent.ul_y + 1 + args [4]; -} - -/** - * 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; -} - -String getNameText () { - if ((style & SWT.SINGLE) != 0) return getText (); - return getText (0, Math.min(getCharCount () - 1, 10)); -} - -/** - * 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 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 (textVerify != null) { - return new Point (textVerify.start_pos, textVerify.end_pos); - } - int [] start = new int [1], end = new int [1]; - OS.PtTextGetSelection (handle, start, end); - if (start [0] == -1) { - int [] args = {OS.Pt_ARG_CURSOR_POSITION, 0, 0}; - OS.PtGetResources (handle, args.length / 3, args); - start [0] = end [0] = args [1]; - } - return new Point (start [0], end [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(); - Point selection = getSelection (); - return selection.y - selection.x; -} - -/** - * 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(); - /* - * NOTE: The current implementation uses substring () - * which can reference a potentially large character - * array. - */ - Point selection = getSelection (); - return getText ().substring (selection.x, selection.y); -} - -/** - * 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; -} - -int getTabWidth (int tabs) { - int [] args = new int [] {OS.Pt_ARG_TEXT_FONT, 0, 0}; - OS.PtGetResources (handle, args.length / 3, args); - PhRect_t rect = new PhRect_t (); - int ptr = OS.malloc (1); - OS.memmove (ptr, new byte [] {' '}, 1); - OS.PfExtentText(rect, null, args [1], ptr, 1); - OS.free (ptr); - int width = rect.lr_x - rect.ul_x + 1; - return width * tabs; -} - -/** - * 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 ""; - String text = getText (); - int length = text.length (); - end = Math.min (end, length - 1); - if (start > end) return ""; - start = Math.max (0, start); - /* - * NOTE: The current implementation uses substring () - * which can reference a potentially large character - * array. - */ - //NOT DONE - use OS in SINGLE text - return text.substring (start, end + 1); -} - -/** - * 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 (echoCharacter != '\0') return hiddenText; - int [] args = {OS.Pt_ARG_TEXT_STRING, 0, 0}; - OS.PtGetResources (handle, args.length / 3, args); - if (args [1] == 0) return ""; - int length = OS.strlen (args [1]); - byte [] buffer = new byte [length]; - OS.memmove (buffer, args [1], length); - char [] unicode = Converter.mbcsToWcs (null, buffer); - return new String (unicode); -} - -/** - * 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(); - int [] args = new int [] {OS.Pt_ARG_MAX_LENGTH, 0, 0}; - OS.PtGetResources (handle, args.length / 3, args); - return args [1]; -} - -/** - * 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; - int [] args = {OS.Pt_ARG_MULTITEXT_TOP_LINE, 0, 0}; - OS.PtGetResources(handle, args.length / 3, args); - return args [1] - 1; -} - -/** - * 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(); - //NOT DONE - NOT NEEDED - return 0; -} - -void hookEvents () { - super.hookEvents (); - int windowProc = display.windowProc; - OS.PtAddCallback (handle, OS.Pt_CB_MODIFY_VERIFY, windowProc, OS.Pt_CB_MODIFY_VERIFY); - OS.PtAddCallback (handle, OS.Pt_CB_TEXT_CHANGED, windowProc, OS.Pt_CB_TEXT_CHANGED); -} - -/** - * 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); - byte [] buffer = Converter.wcsToMbcs (null, string, false); - int [] start = new int [1], end = new int [1]; - OS.PtTextGetSelection (handle, start, end); - if (start [0] == -1) { - int [] args = {OS.Pt_ARG_CURSOR_POSITION, 0, 0}; - OS.PtGetResources (handle, args.length / 3, args); - start [0] = end [0] = args [1]; - } - OS.PtTextModifyText (handle, start [0], end [0], start [0], buffer, buffer.length); -} - -/** - * 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(); - int ig = OS.PhInputGroup (0); - int ptr = OS.PhClipboardPasteString((short)ig); - if (ptr == 0) return; - int length = OS.strlen (ptr); - int [] start = new int [1], end = new int [1]; - OS.PtTextGetSelection (handle, start, end); - if (start [0] == -1) { - int [] args = {OS.Pt_ARG_CURSOR_POSITION, 0, 0}; - OS.PtGetResources (handle, args.length / 3, args); - start [0] = end [0] = args [1]; - } - OS.PtTextModifyText (handle, start [0], end [0], end [0], ptr, length); - OS.free(ptr); -} - -int Ph_EV_BOUNDARY (int widget, int info) { - /* - * Bug in Photon. PtMultiText reports boundary events for - * the internal (hidden) child widget. This makes it appear as - * though the pointer leaves as soon as it enters the widget - * area. The fix is to filter out these theser events. - */ - if ((style & SWT.MULTI) != 0) { - if (info == 0) return OS.Pt_END; - PtCallbackInfo_t cbinfo = new PtCallbackInfo_t (); - OS.memmove (cbinfo, info, PtCallbackInfo_t.sizeof); - if (cbinfo.event == 0) return OS.Pt_END; - PhEvent_t ev = new PhEvent_t (); - OS.memmove (ev, cbinfo.event, PhEvent_t.sizeof); - switch ((int) ev.subtype) { - case OS.Ph_EV_PTR_ENTER_FROM_CHILD: - case OS.Ph_EV_PTR_LEAVE_TO_CHILD: - return OS.Pt_CONTINUE; - } - } - return super.Ph_EV_BOUNDARY (widget, info); -} - -int Pt_CB_GOT_FOCUS (int widget, int info) { - - /* - * Bug in Photon. Even though the Pt_CB_GOT_FOCUS callback - * is added to the multi-line text, the widget parameter - * in the callback is a child of the multi-line text. The fix - * is to register that child so that the lookup in the widget - * table will find the muti-line text and avoid multiple - * Pt_CB_LOST_FOCUS callbacks. - */ - if ((style & SWT.MULTI) != 0) { - if (widget != handle) return OS.Pt_CONTINUE; - } - return super.Pt_CB_GOT_FOCUS (widget, info); -} - -int Pt_CB_MODIFY_VERIFY (int widget, int info) { - if (lastModifiedText != 0) { - OS.free (lastModifiedText); - lastModifiedText = 0; - } - if (echoCharacter == '\0' && !hooks (SWT.Verify) && !filters (SWT.Verify)) return 0; - PtCallbackInfo_t cbinfo = new PtCallbackInfo_t (); - OS.memmove (cbinfo, info, PtCallbackInfo_t.sizeof); - PtTextCallback_t textVerify = new PtTextCallback_t (); - OS.memmove (textVerify, cbinfo.cbdata, PtTextCallback_t.sizeof); - byte [] buffer = new byte [textVerify.length]; - OS.memmove (buffer, textVerify.text, buffer.length); - String text = new String (Converter.mbcsToWcs (null, buffer)); - String newText = text; - if (!ignoreChange) { - Event event = new Event (); - event.start = textVerify.start_pos; - event.end = textVerify.end_pos; - event.doit = textVerify.doit != 0; - event.text = text; - if (cbinfo.event != 0) { - int data = OS.PhGetData (cbinfo.event); - if (data != 0) { - PhKeyEvent_t ke = new PhKeyEvent_t (); - OS.memmove (ke, data, PhKeyEvent_t.sizeof); - if ((ke.key_flags & (OS.Pk_KF_Key_Down | OS.Pk_KF_Key_Repeat)) != 0) { - setKeyState (event, SWT.Verify, ke); - } - } - } - sendEvent (SWT.Verify, event); - newText = event.text; - textVerify.doit = (event.doit && newText != null) ? 1 : 0; - } - if (newText != null) { - if (echoCharacter != '\0' && (textVerify.doit != 0)) { - String prefix = hiddenText.substring (0, textVerify.start_pos); - String suffix = hiddenText.substring (textVerify.end_pos, hiddenText.length ()); - hiddenText = prefix + newText + suffix; - char [] charBuffer = new char [newText.length ()]; - for (int i=0; i<charBuffer.length; i++) { - charBuffer [i] = echoCharacter; - } - newText = new String (charBuffer); - } - if (newText != text) { - byte [] buffer2 = Converter.wcsToMbcs (null, newText, true); - int length = buffer2.length - 1; - if (length == textVerify.length) { - OS.memmove(textVerify.text, buffer2, length); - } else { - int ptr = OS.malloc (length); - OS.memmove (ptr, buffer2, length); - textVerify.new_insert += length - textVerify.length; - textVerify.text = ptr; - textVerify.length = length; - lastModifiedText = ptr; - } - } - } - OS.memmove (cbinfo.cbdata, textVerify, PtTextCallback_t.sizeof); - textVerify = null; - return OS.Pt_CONTINUE; -} - -int Pt_CB_TEXT_CHANGED (int widget, int info) { - if (lastModifiedText != 0) { - OS.free (lastModifiedText); - lastModifiedText = 0; - } - if (!ignoreChange) sendEvent (SWT.Modify); - return OS.Pt_CONTINUE; -} - -void register () { - super.register (); - - /* - * Bug in Photon. Even though the Pt_CB_GOT_FOCUS callback - * is added to the multi-line text, the widget parameter - * in the callback is a child of the multi-line text. The fix - * is to register that child so that the lookup in the widget - * table will find the muti-line text. - */ - if ((style & SWT.MULTI) == 0) return; - int child = OS.PtWidgetChildBack (handle); - WidgetTable.put (child, this); -} - -void releaseWidget () { - super.releaseWidget (); - if (lastModifiedText != 0) OS.free (lastModifiedText); - lastModifiedText = 0; - hiddenText = message = null; - textVerify = 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(); - OS.PtTextSetSelection (handle, new int [] {0}, new int [] {0x7FFFFFFF}); -} - -/** - * 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 (echoCharacter == echo) return; - String newText; - if (echo == 0) { - newText = hiddenText; - hiddenText = ""; - } else { - newText = hiddenText = getText(); - } - echoCharacter = echo; - Point selection = getSelection(); - boolean oldValue = ignoreChange; - ignoreChange = true; - setText(newText); - setSelection(selection.x, selection.y); - ignoreChange = oldValue; -} - -/** - * 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(); - //NOT DONE - NOT NEEDED -} - -/** - * 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(); - style &= ~SWT.READ_ONLY; - if (!editable) style |= SWT.READ_ONLY; - int flags = editable ? OS.Pt_EDITABLE : 0; - OS.PtSetResource (handle, OS.Pt_ARG_TEXT_FLAGS, flags, OS.Pt_EDITABLE); -} - -public void setFont (Font font) { - super.setFont (font); - setTabStops (tabs); -} - -/** - * 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; -} - -/** - * 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 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 position) { - checkWidget(); - OS.PtSetResource (handle, OS.Pt_ARG_CURSOR_POSITION, position, 0); - - /* - * Feature in Photon. On a single-line text, the selection is - * not cleared when setting the cursor position. The fix is to - * set the selection start and end values to the specified - * position. - */ - if ((style & SWT.SINGLE) != 0) { - int [] selection = {position}; - OS.PtTextSetSelection (handle, selection, selection); - } -} - -/** - * 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 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(); - OS.PtTextSetSelection (handle, new int [] {start}, new int [] {end}); - - /* - * Feature in Photon. On a multi-line text, the caret position - * is not changed with the selection start and end values are - * the same. The fix is to detect this case and change the - * cursor position. - */ - if ((style & SWT.MULTI) != 0 && start == end) { - OS.PtSetResource (handle, OS.Pt_ARG_CURSOR_POSITION, start, 0); - } -} - -/** - * 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 (tabs < 0) return; - setTabStops (this.tabs = tabs); -} - -void setTabStops (int tabs) { - if ((style & SWT.SINGLE) != 0) return; - int tabsWidth = getTabWidth (tabs); - int ptr = OS.malloc (4); - OS.memmove (ptr, new int [] {tabsWidth}, 4); - OS.PtSetResource (handle, OS.Pt_ARG_MULTITEXT_TABS, ptr, 1); - OS.free (ptr); -} - -/** - * 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); - byte [] buffer = Converter.wcsToMbcs (null, string, true); - int ptr = OS.malloc (buffer.length); - OS.memmove (ptr, buffer, buffer.length); - OS.PtSetResource (handle, OS.Pt_ARG_TEXT_STRING, ptr, 0); - OS.free (ptr); -} - -/** - * 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); - OS.PtSetResource (handle, OS.Pt_ARG_MAX_LENGTH, limit, 0); -} - -/** - * 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; - OS.PtSetResource (handle, OS.Pt_ARG_MULTITEXT_TOP_LINE, index + 1, 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(); - //NOT DONE - NOT NEEDED -} - -int traversalCode (int key_sym, PhKeyEvent_t ke) { - int code = super.traversalCode (key_sym, ke); - if ((style & SWT.READ_ONLY) != 0) return code; - if ((style & SWT.MULTI) != 0) { - code &= ~SWT.TRAVERSE_RETURN; - if (key_sym == OS.Pk_Tab && ke != null) { - if ((ke.key_mods & OS.Pk_KM_Ctrl) == 0) { - code &= ~(SWT.TRAVERSE_TAB_NEXT | SWT.TRAVERSE_TAB_PREVIOUS); - } - } - } - return code; -} - -boolean translateTraversal (int key_sym, PhKeyEvent_t phEvent) { - boolean translated = super.translateTraversal (key_sym, phEvent); - if ((style & SWT.SINGLE) != 0 && !translated && key_sym == OS.Pk_Return) { - postEvent (SWT.DefaultSelection); - return false; - } - return translated; -} - -int widgetClass () { - if ((style & SWT.SINGLE) != 0) return OS.PtText (); - return OS.PtMultiText (); -} - -} |