| package org.eclipse.swt.widgets;
|
|
|
| /*
|
| * (c) Copyright IBM Corp. 2000, 2001.
|
| * All Rights Reserved
|
| */
|
|
|
| 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. |
| * <p> |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>MULTI, SINGLE, READ_ONLY, WRAP</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>DefaultSelection, Modify, Verify</dd> |
| * </dl> |
| * </p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| */ |
| public class Text extends Scrollable {
|
| char echoCharacter;
|
| boolean ignoreChange;
|
| String hiddenText;
|
| int tabs, lastModifiedText;
|
| PtTextCallback_t textVerify;
|
|
|
| public static final int LIMIT;
|
| public static final String DELIMITER;
|
| /*
|
| * 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 |
| * for all SWT widget classes should include a comment which |
| * describes the style constants which are applicable to the class. |
| * </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 |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public Text (Composite parent, int style) {
|
| super (parent, checkStyle (style));
|
| }
|
|
|
| static int checkStyle (int style) {
|
| if ((style & SWT.SINGLE) != 0) style &= ~(SWT.H_SCROLL | SWT.V_SCROLL);
|
| 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();
|
| PhDim_t dim = new PhDim_t ();
|
| if (!OS.PtWidgetIsRealized (handle)) OS.PtExtentWidgetFamily (handle);
|
| OS.PtWidgetPreferredSize (handle, dim);
|
| int width = dim.w, height = dim.h;
|
| if ((style & SWT.MULTI) != 0) {
|
| int child = OS.PtWidgetChildBack (handle);
|
| OS.PtWidgetPreferredSize (child, dim);
|
| width += dim.w - 1;
|
| height += dim.h - 1;
|
| }
|
| 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);
|
| ScrollBar scroll;
|
| if (wHint != SWT.DEFAULT) {
|
| width = area.size_w;
|
| if ((scroll = getVerticalBar ()) != null) width += scroll.getSize().x;
|
| }
|
| if (hHint != SWT.DEFAULT) {
|
| height = area.size_h;
|
| if ((scroll = getHorizontalBar ()) != null) height += scroll.getSize().y;
|
| }
|
| }
|
| 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;
|
| Display display = getDisplay ();
|
| int parentHandle = parent.handle;
|
| 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);
|
| }
|
|
|
| /** |
| * 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 sending |
| * it one of the messages defined in the <code>SelectionListener</code> |
| * interface. |
| * <p> |
| * <code>widgetSelected</code> is not called for texts. |
| * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed in a single-line text. |
| * </p> |
| * |
| * @param listener the listener which should be notified |
| * |
| * @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 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> |
| */ |
| 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 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> |
| */ |
| 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);
|
| }
|
|
|
| /** |
| * Gets the line number of the caret. |
| * <p> |
| * The line number of the caret is returned. |
| * </p> |
| * |
| * @return the line number |
| * |
| * @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> |
| */ |
| public int getCaretLineNumber () {
|
| checkWidget();
|
| //NOT DONE - NOT NEEDED
|
| return 0;
|
| }
|
|
|
| /** |
| * Gets the location the caret. |
| * <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;
|
| }
|
|
|
| /** |
| * Gets the position of the caret. |
| * <p> |
| * The character position of the caret is returned. |
| * </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];
|
| }
|
|
|
| /** |
| * Gets 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]);
|
| }
|
|
|
| /** |
| * Gets 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> |
| * |
| * @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;
|
| }
|
|
|
| /** |
| * Gets 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> |
| * |
| * @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 char getEchoChar () {
|
| checkWidget();
|
| return echoCharacter;
|
| }
|
|
|
| /** |
| * Gets the 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 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;
|
| }
|
|
|
| /** |
| * Gets 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];
|
| }
|
|
|
| /** |
| * Gets 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> |
| */ |
| public String getLineDelimiter () {
|
| checkWidget();
|
| return "\n";
|
| }
|
|
|
| /** |
| * Gets 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];
|
| }
|
|
|
| String getNameText () {
|
| if ((style & SWT.SINGLE) != 0) return getText ();
|
| return getText (0, Math.min(getCharCount () - 1, 10));
|
| }
|
|
|
| /** |
| * Gets the position of the selected text. |
| * <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 the start and end of 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 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]);
|
| }
|
|
|
| /** |
| * Gets 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. |
| * |
| * @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);
|
| }
|
|
|
| /** |
| * Gets 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;
|
| }
|
|
|
| /** |
| * Gets a range of text. |
| * <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();
|
| /*
|
| * NOTE: The current implementation uses substring ()
|
| * which can reference a potentially large character
|
| * array.
|
| */
|
| //NOT DONE - use OS in SINGLE text
|
| return getText ().substring (start, end + 1);
|
| }
|
|
|
| /** |
| * Gets the widget text. |
| * <p> |
| * The text for a text widget is the characters in the widget. |
| * </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> |
| */ |
| 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;
|
| }
|
|
|
| /** |
| * Gets 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 = getDisplay ().windowProc;
|
| OS.PtAddCallback (handle, OS.Pt_CB_MODIFY_VERIFY, windowProc, SWT.Verify);
|
| OS.PtAddCallback (handle, OS.Pt_CB_TEXT_CHANGED, windowProc, SWT.Modify);
|
| }
|
|
|
| /** |
| * Inserts a string. |
| * <p> |
| * The old selection is replaced with the new text. |
| * </p> |
| * |
| * @param string the string |
| * |
| * @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 processEvent (int widget, int data, 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 && data == SWT.FocusOut) {
|
| return OS.Pt_CONTINUE;
|
| }
|
| }
|
| return super.processEvent (widget, data, info);
|
| }
|
|
|
| int processModify (int info) {
|
| if (lastModifiedText != 0) {
|
| OS.free (lastModifiedText);
|
| lastModifiedText = 0;
|
| }
|
| if (!ignoreChange) sendEvent (SWT.Modify);
|
| return OS.Pt_CONTINUE;
|
| }
|
|
|
| int processPaint (int damage) {
|
| if ((style & SWT.SINGLE) != 0) {
|
| OS.PtSuperClassDraw (OS.PtText (), handle, damage);
|
| } else {
|
| OS.PtSuperClassDraw (OS.PtMultiText (), handle, damage);
|
| }
|
| return super.processPaint (damage);
|
| }
|
|
|
| int processVerify (int info) {
|
| if (lastModifiedText != 0) {
|
| OS.free (lastModifiedText);
|
| lastModifiedText = 0;
|
| }
|
| super.processVerify (info);
|
| if (echoCharacter == '\0' && !hooks (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;
|
| 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, 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 0;
|
| }
|
|
|
| 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 = 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. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #addSelectionListener |
| */ |
| public void removeSelectionListener (SelectionListener listener) {
|
| checkWidget();
|
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| if (eventTable == null) return;
|
| eventTable.unhook (SWT.Selection, listener);
|
| eventTable.unhook (SWT.DefaultSelection,listener);
|
| }
|
|
|
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control is verified. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see VerifyListener |
| * @see #addVerifyListener |
| */ |
| 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 [] {-1});
|
| }
|
|
|
| /** |
| * 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. |
| * </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 (echoCharacter == echo) return;
|
| String newText;
|
| if (echo == 0) {
|
| newText = hiddenText;
|
| hiddenText = null;
|
| } 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> |
| * |
| * @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 [] args = {OS.Pt_ARG_TEXT_FLAGS, editable ? OS.Pt_EDITABLE : 0, OS.Pt_EDITABLE};
|
| OS.PtSetResources(handle, args.length / 3, args);
|
| }
|
|
|
| public void setFont (Font font) {
|
| super.setFont (font);
|
| setTabStops (tabs);
|
| }
|
|
|
| /** |
| * 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 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 setSelection (int position) {
|
| checkWidget();
|
| int [] args = {OS.Pt_ARG_CURSOR_POSITION, position, 0};
|
| OS.PtSetResources (handle, args.length / 3, args);
|
|
|
| /*
|
| * 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. |
| * <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 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 setSelection (Point selection) {
|
| checkWidget();
|
| if (selection == null) error (SWT.ERROR_NULL_ARGUMENT);
|
| setSelection (selection.x, selection.y);
|
| }
|
|
|
| /** |
| * 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 |
| * usual array indexing rules. |
| * </p> |
| * |
| * @param start the start of the range |
| * @param end the end of the range |
| * |
| * @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 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) {
|
| int [] args = {OS.Pt_ARG_CURSOR_POSITION, start, 0};
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| }
|
| }
|
|
|
| /** |
| * 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);
|
| int [] args = {OS.Pt_ARG_MULTITEXT_TABS, ptr, 1};
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| OS.free (ptr);
|
| }
|
|
|
| /** |
| * Sets the contents of the receiver to the given string. |
| * |
| * @param text 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);
|
| int [] args = {OS.Pt_ARG_TEXT_STRING, ptr, 0};
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| OS.free (ptr);
|
| }
|
|
|
| /** |
| * Sets the maximum number of characters that the receiver |
| * is capable of holding to be the argument. |
| * |
| * @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> |
| */ |
| public void setTextLimit (int limit) {
|
| checkWidget();
|
| if (limit == 0) error (SWT.ERROR_CANNOT_BE_ZERO);
|
| int [] args = new int [] {OS.Pt_ARG_MAX_LENGTH, limit, 0};
|
| OS.PtSetResources (handle, args.length / 3, args);
|
| }
|
|
|
| /** |
| * 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 [] args = {OS.Pt_ARG_MULTITEXT_TOP_LINE, index + 1, 0};
|
| OS.PtSetResources(handle, args.length / 3, args);
|
| }
|
|
|
| /** |
| * 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 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> |
| */ |
| public void showSelection () {
|
| checkWidget();
|
| //NOT DONE - NOT NEEDED
|
| }
|
|
|
| int traversalCode (int key_sym, PhKeyEvent_t ke) {
|
| if ((style & SWT.SINGLE) != 0) {
|
| int code = super.traversalCode (key_sym, ke);
|
| if (key_sym == OS.Pk_Right || key_sym == OS.Pk_Left) {
|
| code &= ~(SWT.TRAVERSE_ARROW_NEXT | SWT.TRAVERSE_ARROW_PREVIOUS);
|
| }
|
| return code;
|
| }
|
| return SWT.TRAVERSE_ESCAPE;
|
| }
|
|
|
| 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;
|
| }
|
|
|
| }
|