| /******************************************************************************* |
| * Copyright (c) 2000, 2011 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.*; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.gtk.*; |
| 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 numeric |
| * values. |
| * <p> |
| * Note that although this class is a subclass of <code>Composite</code>, |
| * it does not make sense to add children to it, or set a layout on it. |
| * </p><p> |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>READ_ONLY, WRAP</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Selection, Modify, Verify</dd> |
| * </dl> |
| * </p><p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| * |
| * @see <a href="http://www.eclipse.org/swt/snippets/#spinner">Spinner snippets</a> |
| * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> |
| * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| * |
| * @since 3.1 |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public class Spinner extends Composite { |
| static final int MIN_ARROW_WIDTH = 6; |
| int lastEventTime = 0; |
| int /*long*/ gdkEventKey = 0; |
| int fixStart = -1, fixEnd = -1; |
| double climbRate = 1; |
| |
| /** |
| * the operating system limit for the number of characters |
| * that the text field in an instance of this class can hold |
| * |
| * @since 3.4 |
| */ |
| public final static int LIMIT; |
| /* |
| * These values can be different on different platforms. |
| * Therefore they are not initialized in the declaration |
| * to stop the compiler from inlining. |
| */ |
| static { |
| LIMIT = 0x7FFFFFFF; |
| } |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * and a style value describing its behavior and appearance. |
| * <p> |
| * The style value is either one of the style constants defined in |
| * class <code>SWT</code> which is applicable to instances of this |
| * class, or must be built by <em>bitwise OR</em>'ing together |
| * (that is, using the <code>int</code> "|" operator) two or more |
| * of those <code>SWT</code> style constants. The class description |
| * lists the style constants that are applicable to the class. |
| * Style bits are also inherited from superclasses. |
| * </p> |
| * |
| * @param parent a composite control which will be the parent of the new instance (cannot be null) |
| * @param style the style of control to construct |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| * |
| * @see SWT#READ_ONLY |
| * @see SWT#WRAP |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public Spinner (Composite parent, int style) { |
| super (parent, checkStyle (style)); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the receiver's text is modified, by sending |
| * it one of the messages defined in the <code>ModifyListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see ModifyListener |
| * @see #removeModifyListener |
| */ |
| public void addModifyListener (ModifyListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Modify, typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the control is selected by the user, by sending |
| * it one of the messages defined in the <code>SelectionListener</code> |
| * interface. |
| * <p> |
| * <code>widgetSelected</code> is not called for texts. |
| * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed in a single-line text. |
| * </p> |
| * |
| * @param listener the listener which should be notified when the control is selected by the user |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #removeSelectionListener |
| * @see SelectionEvent |
| */ |
| public void addSelectionListener(SelectionListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener(listener); |
| addListener(SWT.Selection,typedListener); |
| addListener(SWT.DefaultSelection,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the receiver's text is verified, by sending |
| * it one of the messages defined in the <code>VerifyListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see VerifyListener |
| * @see #removeVerifyListener |
| */ |
| void addVerifyListener (VerifyListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Verify, typedListener); |
| } |
| |
| static int checkStyle (int style) { |
| /* |
| * Even though it is legal to create this widget |
| * with scroll bars, they serve no useful purpose |
| * because they do not automatically scroll the |
| * widget's client area. The fix is to clear |
| * the SWT style. |
| */ |
| return style & ~(SWT.H_SCROLL | SWT.V_SCROLL); |
| } |
| |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| public Point computeSize (int wHint, int hHint, boolean changed) { |
| checkWidget (); |
| if (wHint != SWT.DEFAULT && wHint < 0) wHint = 0; |
| if (hHint != SWT.DEFAULT && hHint < 0) hHint = 0; |
| int[] w = new int [1], h = new int [1]; |
| OS.gtk_widget_realize (handle); |
| int /*long*/ layout = OS.gtk_entry_get_layout (handle); |
| int /*long*/ hAdjustment = OS.gtk_spin_button_get_adjustment (handle); |
| GtkAdjustment adjustment = new GtkAdjustment (); |
| OS.memmove (adjustment, hAdjustment); |
| int digits = OS.gtk_spin_button_get_digits (handle); |
| for (int i = 0; i < digits; i++) adjustment.upper *= 10; |
| String string = String.valueOf ((int) adjustment.upper); |
| if (digits > 0) { |
| StringBuffer buffer = new StringBuffer (); |
| buffer.append (string); |
| buffer.append (getDecimalSeparator ()); |
| int count = digits - string.length (); |
| while (count >= 0) { |
| buffer.append ("0"); |
| count--; |
| } |
| string = buffer.toString (); |
| } |
| byte [] buffer1 = Converter.wcsToMbcs (null, string, false); |
| int /*long*/ ptr = OS.pango_layout_get_text (layout); |
| int length = OS.strlen (ptr); |
| byte [] buffer2 = new byte [length]; |
| OS.memmove (buffer2, ptr, length); |
| OS.pango_layout_set_text (layout, buffer1, buffer1.length); |
| OS.pango_layout_get_size (layout, w, h); |
| OS.pango_layout_set_text (layout, buffer2, buffer2.length); |
| int width = OS.PANGO_PIXELS (w [0]); |
| int height = OS.PANGO_PIXELS (h [0]); |
| width = wHint == SWT.DEFAULT ? width : wHint; |
| height = hHint == SWT.DEFAULT ? height : hHint; |
| Rectangle trim = computeTrim (0, 0, width, height); |
| return new Point (trim.width, trim.height); |
| } |
| |
| public Rectangle computeTrim (int x, int y, int width, int height) { |
| checkWidget (); |
| int xborder = 0, yborder = 0; |
| int /*long*/ style = OS.gtk_widget_get_style (handle); |
| if ((this.style & SWT.BORDER) != 0) { |
| xborder += OS.gtk_style_get_xthickness (style); |
| yborder += OS.gtk_style_get_ythickness (style); |
| } |
| int [] property = new int [1]; |
| OS.gtk_widget_style_get (handle, OS.interior_focus, property, 0); |
| if (property [0] == 0) { |
| OS.gtk_widget_style_get (handle, OS.focus_line_width, property, 0); |
| xborder += property [0]; |
| yborder += property [0]; |
| } |
| int /*long*/ fontDesc = OS.gtk_style_get_font_desc (style); |
| int fontSize = OS.pango_font_description_get_size (fontDesc); |
| int arrowSize = Math.max (OS.PANGO_PIXELS (fontSize), MIN_ARROW_WIDTH); |
| arrowSize = arrowSize - arrowSize % 2; |
| Rectangle trim = super.computeTrim (x, y, width, height); |
| trim.x -= xborder; |
| trim.y -= yborder; |
| trim.width += 2 * xborder; |
| trim.height += 2 * yborder; |
| trim.width += arrowSize + (2 * OS.gtk_style_get_xthickness (style)); |
| GtkBorder innerBorder = Display.getEntryInnerBorder (handle); |
| trim.x -= innerBorder.left; |
| trim.y -= innerBorder.top; |
| trim.width += innerBorder.left + innerBorder.right; |
| trim.height += innerBorder.top + innerBorder.bottom; |
| return new Rectangle (trim.x, trim.y, trim.width, trim.height); |
| } |
| |
| /** |
| * Copies the selected text. |
| * <p> |
| * The current selection is copied to the clipboard. |
| * </p> |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void copy () { |
| checkWidget (); |
| OS.gtk_editable_copy_clipboard (handle); |
| } |
| |
| void createHandle (int index) { |
| state |= HANDLE | MENU; |
| fixedHandle = OS.g_object_new (display.gtk_fixed_get_type (), 0); |
| if (fixedHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.gtk_fixed_set_has_window (fixedHandle, true); |
| int /*long*/ adjustment = OS.gtk_adjustment_new (0, 0, 100, 1, 10, 0); |
| if (adjustment == 0) error (SWT.ERROR_NO_HANDLES); |
| handle = OS.gtk_spin_button_new (adjustment, climbRate, 0); |
| if (handle == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.gtk_container_add (fixedHandle, handle); |
| OS.gtk_editable_set_editable (handle, (style & SWT.READ_ONLY) == 0); |
| OS.gtk_entry_set_has_frame (handle, (style & SWT.BORDER) != 0); |
| OS.gtk_spin_button_set_wrap (handle, (style & SWT.WRAP) != 0); |
| } |
| |
| /** |
| * 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 (); |
| OS.gtk_editable_cut_clipboard (handle); |
| } |
| |
| void deregister () { |
| super.deregister (); |
| int /*long*/ imContext = imContext (); |
| if (imContext != 0) display.removeWidget (imContext); |
| } |
| |
| int /*long*/ eventWindow () { |
| return paintWindow (); |
| } |
| |
| int /*long*/ enterExitHandle () { |
| return fixedHandle; |
| } |
| |
| boolean filterKey (int keyval, int /*long*/ event) { |
| int time = OS.gdk_event_get_time (event); |
| if (time != lastEventTime) { |
| lastEventTime = time; |
| int /*long*/ imContext = imContext (); |
| if (imContext != 0) { |
| return OS.gtk_im_context_filter_keypress (imContext, event); |
| } |
| } |
| gdkEventKey = event; |
| return false; |
| } |
| |
| void fixIM () { |
| /* |
| * The IM filter has to be called one time for each key press event. |
| * When the IM is open the key events are duplicated. The first event |
| * is filtered by SWT and the second event is filtered by GTK. In some |
| * cases the GTK handler does not run (the widget is destroyed, the |
| * application code consumes the event, etc), for these cases the IM |
| * filter has to be called by SWT. |
| */ |
| if (gdkEventKey != 0 && gdkEventKey != -1) { |
| int /*long*/ imContext = imContext (); |
| if (imContext != 0) { |
| OS.gtk_im_context_filter_keypress (imContext, gdkEventKey); |
| gdkEventKey = -1; |
| return; |
| } |
| } |
| gdkEventKey = 0; |
| } |
| |
| GdkColor getBackgroundColor () { |
| return getBaseColor (); |
| } |
| |
| public int getBorderWidth () { |
| checkWidget(); |
| int /*long*/ style = OS.gtk_widget_get_style (handle); |
| if ((this.style & SWT.BORDER) != 0) { |
| return OS.gtk_style_get_xthickness (style); |
| } |
| return 0; |
| } |
| |
| GdkColor getForegroundColor () { |
| return getTextColor (); |
| } |
| |
| /** |
| * Returns the amount that the receiver's value will be |
| * modified by when the up/down arrows are pressed. |
| * |
| * @return the increment |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getIncrement () { |
| checkWidget (); |
| int /*long*/ hAdjustment = OS.gtk_spin_button_get_adjustment (handle); |
| GtkAdjustment adjustment = new GtkAdjustment (); |
| OS.memmove (adjustment, hAdjustment); |
| int digits = OS.gtk_spin_button_get_digits (handle); |
| double value = adjustment.step_increment; |
| for (int i = 0; i < digits; i++) value *= 10; |
| return (int) (value > 0 ? value + 0.5 : value - 0.5); |
| } |
| |
| /** |
| * Returns the maximum value which the receiver will allow. |
| * |
| * @return the maximum |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getMaximum () { |
| checkWidget (); |
| int /*long*/ hAdjustment = OS.gtk_spin_button_get_adjustment (handle); |
| GtkAdjustment adjustment = new GtkAdjustment (); |
| OS.memmove (adjustment, hAdjustment); |
| int digits = OS.gtk_spin_button_get_digits (handle); |
| double value = adjustment.upper; |
| for (int i = 0; i < digits; i++) value *= 10; |
| return (int) (value > 0 ? value + 0.5 : value - 0.5); |
| } |
| |
| /** |
| * Returns the minimum value which the receiver will allow. |
| * |
| * @return the minimum |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getMinimum () { |
| checkWidget (); |
| int /*long*/ hAdjustment = OS.gtk_spin_button_get_adjustment (handle); |
| GtkAdjustment adjustment = new GtkAdjustment (); |
| OS.memmove (adjustment, hAdjustment); |
| int digits = OS.gtk_spin_button_get_digits (handle); |
| double value = adjustment.lower; |
| for (int i = 0; i < digits; i++) value *= 10; |
| return (int) (value > 0 ? value + 0.5 : value - 0.5); |
| } |
| |
| /** |
| * Returns the amount that the receiver's position will be |
| * modified by when the page up/down keys are pressed. |
| * |
| * @return the page increment |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getPageIncrement () { |
| checkWidget (); |
| int /*long*/ hAdjustment = OS.gtk_spin_button_get_adjustment (handle); |
| GtkAdjustment adjustment = new GtkAdjustment (); |
| OS.memmove (adjustment, hAdjustment); |
| int digits = OS.gtk_spin_button_get_digits (handle); |
| double value = adjustment.page_increment; |
| for (int i = 0; i < digits; i++) value *= 10; |
| return (int) (value > 0 ? value + 0.5 : value - 0.5); |
| } |
| |
| /** |
| * Returns the <em>selection</em>, which is the receiver's position. |
| * |
| * @return the selection |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getSelection () { |
| checkWidget (); |
| int /*long*/ hAdjustment = OS.gtk_spin_button_get_adjustment (handle); |
| GtkAdjustment adjustment = new GtkAdjustment (); |
| OS.memmove (adjustment, hAdjustment); |
| int digits = OS.gtk_spin_button_get_digits (handle); |
| double value = adjustment.value; |
| for (int i = 0; i < digits; i++) value *= 10; |
| return (int) (value > 0 ? value + 0.5 : value - 0.5); |
| } |
| |
| /** |
| * Returns a string containing a copy of the contents of the |
| * receiver's text field, or an empty string if there are no |
| * contents. |
| * |
| * @return the receiver's text |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.4 |
| */ |
| public String getText () { |
| checkWidget (); |
| int /*long*/ str = OS.gtk_entry_get_text (handle); |
| if (str == 0) return ""; |
| int length = OS.strlen (str); |
| byte [] buffer = new byte [length]; |
| OS.memmove (buffer, str, length); |
| return new String (Converter.mbcsToWcs (null, buffer)); |
| } |
| |
| /** |
| * Returns the maximum number of characters that the receiver's |
| * text field is capable of holding. If this has not been changed |
| * by <code>setTextLimit()</code>, it will be the constant |
| * <code>Spinner.LIMIT</code>. |
| * |
| * @return the text limit |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #LIMIT |
| * |
| * @since 3.4 |
| */ |
| public int getTextLimit () { |
| checkWidget (); |
| int limit = OS.gtk_entry_get_max_length (handle); |
| return limit == 0 ? 0xFFFF : limit; |
| } |
| |
| /** |
| * Returns the number of decimal places used by the receiver. |
| * |
| * @return the digits |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getDigits () { |
| checkWidget (); |
| return OS.gtk_spin_button_get_digits (handle); |
| } |
| |
| String getDecimalSeparator () { |
| int /*long*/ ptr = OS.localeconv_decimal_point (); |
| int length = OS.strlen (ptr); |
| byte [] buffer = new byte [length]; |
| OS.memmove (buffer, ptr, length); |
| return new String (Converter.mbcsToWcs (null, buffer)); |
| } |
| |
| int /*long*/ gtk_activate (int /*long*/ widget) { |
| sendSelectionEvent (SWT.DefaultSelection); |
| return 0; |
| } |
| |
| int /*long*/ gtk_changed (int /*long*/ widget) { |
| int /*long*/ str = OS.gtk_entry_get_text (handle); |
| int length = OS.strlen (str); |
| if (length > 0) { |
| int /*long*/ [] endptr = new int /*long*/ [1]; |
| double value = OS.g_strtod (str, endptr); |
| if (endptr [0] == str + length) { |
| int /*long*/ hAdjustment = OS.gtk_spin_button_get_adjustment (handle); |
| GtkAdjustment adjustment = new GtkAdjustment (); |
| OS.memmove (adjustment, hAdjustment); |
| if (value != adjustment.value && adjustment.lower <= value && value <= adjustment.upper) { |
| OS.gtk_spin_button_update (handle); |
| } |
| } |
| } |
| |
| /* |
| * Feature in GTK. When the user types, GTK positions |
| * the caret after sending the changed signal. This |
| * means that application code that attempts to position |
| * the caret during a changed signal will fail. The fix |
| * is to post the modify event when the user is typing. |
| */ |
| boolean keyPress = false; |
| int /*long*/ eventPtr = OS.gtk_get_current_event (); |
| if (eventPtr != 0) { |
| GdkEventKey gdkEvent = new GdkEventKey (); |
| OS.memmove (gdkEvent, eventPtr, GdkEventKey.sizeof); |
| switch (gdkEvent.type) { |
| case OS.GDK_KEY_PRESS: |
| keyPress = true; |
| break; |
| } |
| OS.gdk_event_free (eventPtr); |
| } |
| if (keyPress) { |
| postEvent (SWT.Modify); |
| } else { |
| sendEvent (SWT.Modify); |
| } |
| return 0; |
| } |
| |
| int /*long*/ gtk_commit (int /*long*/ imContext, int /*long*/ text) { |
| if (text == 0) return 0; |
| if (!OS.gtk_editable_get_editable (handle)) return 0; |
| int length = OS.strlen (text); |
| if (length == 0) return 0; |
| byte [] buffer = new byte [length]; |
| OS.memmove (buffer, text, length); |
| char [] chars = Converter.mbcsToWcs (null, buffer); |
| char [] newChars = sendIMKeyEvent (SWT.KeyDown, null, chars); |
| if (newChars == null) return 0; |
| /* |
| * Feature in GTK. For a GtkEntry, during the insert-text signal, |
| * GTK allows the programmer to change only the caret location, |
| * not the selection. If the programmer changes the selection, |
| * the new selection is lost. The fix is to detect a selection |
| * change and set it after the insert-text signal has completed. |
| */ |
| fixStart = fixEnd = -1; |
| OS.g_signal_handlers_block_matched (imContext, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, COMMIT); |
| int id = OS.g_signal_lookup (OS.commit, OS.gtk_im_context_get_type ()); |
| int mask = OS.G_SIGNAL_MATCH_DATA | OS.G_SIGNAL_MATCH_ID; |
| OS.g_signal_handlers_unblock_matched (imContext, mask, id, 0, 0, 0, handle); |
| if (newChars == chars) { |
| OS.g_signal_emit_by_name (imContext, OS.commit, text); |
| } else { |
| buffer = Converter.wcsToMbcs (null, newChars, true); |
| OS.g_signal_emit_by_name (imContext, OS.commit, buffer); |
| } |
| OS.g_signal_handlers_unblock_matched (imContext, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, COMMIT); |
| OS.g_signal_handlers_block_matched (imContext, mask, id, 0, 0, 0, handle); |
| if (fixStart != -1 && fixEnd != -1) { |
| OS.gtk_editable_set_position (handle, fixStart); |
| OS.gtk_editable_select_region (handle, fixStart, fixEnd); |
| } |
| fixStart = fixEnd = -1; |
| return 0; |
| } |
| |
| int /*long*/ gtk_delete_text (int /*long*/ widget, int /*long*/ start_pos, int /*long*/ end_pos) { |
| if (!hooks (SWT.Verify) && !filters (SWT.Verify)) return 0; |
| int /*long*/ ptr = OS.gtk_entry_get_text (handle); |
| if (end_pos == -1) end_pos = OS.g_utf8_strlen (ptr, -1); |
| int start = (int)/*64*/OS.g_utf8_offset_to_utf16_offset (ptr, start_pos); |
| int end = (int)/*64*/OS.g_utf8_offset_to_utf16_offset (ptr, end_pos); |
| String newText = verifyText ("", start, end); |
| if (newText == null) { |
| OS.g_signal_stop_emission_by_name (handle, OS.delete_text); |
| } else { |
| if (newText.length () > 0) { |
| int [] pos = new int [1]; |
| pos [0] = (int)/*64*/end_pos; |
| byte [] buffer = Converter.wcsToMbcs (null, newText, false); |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); |
| OS.gtk_editable_insert_text (handle, buffer, buffer.length, pos); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.gtk_editable_set_position (handle, pos [0]); |
| } |
| } |
| return 0; |
| } |
| |
| int /*long*/ gtk_event_after (int /*long*/ widget, int /*long*/ gdkEvent) { |
| if (cursor != null) setCursor (cursor.handle); |
| return super.gtk_event_after (widget, gdkEvent); |
| } |
| |
| int /*long*/ gtk_focus_out_event (int /*long*/ widget, int /*long*/ event) { |
| fixIM (); |
| return super.gtk_focus_out_event (widget, event); |
| } |
| |
| int /*long*/ gtk_insert_text (int /*long*/ widget, int /*long*/ new_text, int /*long*/ new_text_length, int /*long*/ position) { |
| // if (!hooks (SWT.Verify) && !filters (SWT.Verify)) return 0; |
| if (new_text == 0 || new_text_length == 0) return 0; |
| byte [] buffer = new byte [(int)/*64*/new_text_length]; |
| OS.memmove (buffer, new_text, buffer.length); |
| String oldText = new String (Converter.mbcsToWcs (null, buffer)); |
| int [] pos = new int [1]; |
| OS.memmove (pos, position, 4); |
| int /*long*/ ptr = OS.gtk_entry_get_text (handle); |
| if (pos [0] == -1) pos [0] = (int)/*64*/OS.g_utf8_strlen (ptr, -1); |
| int start = (int)/*64*/OS.g_utf16_pointer_to_offset (ptr, pos [0]); |
| String newText = verifyText (oldText, start, start); |
| if (newText != oldText) { |
| int [] newStart = new int [1], newEnd = new int [1]; |
| OS.gtk_editable_get_selection_bounds (handle, newStart, newEnd); |
| if (newText != null) { |
| if (newStart [0] != newEnd [0]) { |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_TEXT); |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.gtk_editable_delete_selection (handle); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_TEXT); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| } |
| byte [] buffer3 = Converter.wcsToMbcs (null, newText, false); |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); |
| OS.gtk_editable_insert_text (handle, buffer3, buffer3.length, pos); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); |
| newStart [0] = newEnd [0] = pos [0]; |
| } |
| pos [0] = newEnd [0]; |
| if (newStart [0] != newEnd [0]) { |
| fixStart = newStart [0]; |
| fixEnd = newEnd [0]; |
| } |
| OS.memmove (position, pos, 4); |
| OS.g_signal_stop_emission_by_name (handle, OS.insert_text); |
| } |
| return 0; |
| } |
| |
| int /*long*/ gtk_key_press_event (int /*long*/ widget, int /*long*/ event) { |
| int /*long*/ result = super.gtk_key_press_event (widget, event); |
| if (result != 0) fixIM (); |
| if (gdkEventKey == -1) result = 1; |
| gdkEventKey = 0; |
| return result; |
| } |
| |
| int /*long*/ gtk_populate_popup (int /*long*/ widget, int /*long*/ menu) { |
| if ((style & SWT.RIGHT_TO_LEFT) != 0) { |
| OS.gtk_widget_set_direction (menu, OS.GTK_TEXT_DIR_RTL); |
| OS.gtk_container_forall (menu, display.setDirectionProc, OS.GTK_TEXT_DIR_RTL); |
| } |
| return 0; |
| } |
| |
| int /*long*/ gtk_value_changed (int /*long*/ widget) { |
| sendSelectionEvent (SWT.Selection); |
| return 0; |
| } |
| |
| void hookEvents () { |
| super.hookEvents(); |
| OS.g_signal_connect_closure (handle, OS.changed, display.closures [CHANGED], true); |
| OS.g_signal_connect_closure (handle, OS.insert_text, display.closures [INSERT_TEXT], false); |
| OS.g_signal_connect_closure (handle, OS.delete_text, display.closures [DELETE_TEXT], false); |
| OS.g_signal_connect_closure (handle, OS.value_changed, display.closures [VALUE_CHANGED], false); |
| OS.g_signal_connect_closure (handle, OS.activate, display.closures [ACTIVATE], false); |
| OS.g_signal_connect_closure (handle, OS.populate_popup, display.closures [POPULATE_POPUP], false); |
| int /*long*/ imContext = imContext (); |
| if (imContext != 0) { |
| OS.g_signal_connect_closure (imContext, OS.commit, display.closures [COMMIT], false); |
| int id = OS.g_signal_lookup (OS.commit, OS.gtk_im_context_get_type ()); |
| int mask = OS.G_SIGNAL_MATCH_DATA | OS.G_SIGNAL_MATCH_ID; |
| OS.g_signal_handlers_block_matched (imContext, mask, id, 0, 0, 0, handle); |
| } |
| } |
| |
| int /*long*/ imContext () { |
| return OS.GTK_ENTRY_IM_CONTEXT (handle); |
| } |
| |
| int /*long*/ paintWindow () { |
| int /*long*/ window = super.paintWindow (); |
| int /*long*/ children = OS.gdk_window_get_children (window); |
| if (children != 0) window = OS.g_list_data (children); |
| OS.g_list_free (children); |
| return window; |
| } |
| |
| /** |
| * 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 (); |
| OS.gtk_editable_paste_clipboard (handle); |
| } |
| |
| void register () { |
| super.register (); |
| int /*long*/ imContext = imContext (); |
| if (imContext != 0) display.addWidget (imContext, this); |
| } |
| |
| void releaseWidget () { |
| super.releaseWidget (); |
| fixIM (); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the receiver's text is modified. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see ModifyListener |
| * @see #addModifyListener |
| */ |
| public void removeModifyListener (ModifyListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Modify, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control is selected by the user. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #addSelectionListener |
| */ |
| public void removeSelectionListener(SelectionListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook(SWT.Selection, listener); |
| eventTable.unhook(SWT.DefaultSelection,listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control is verified. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see VerifyListener |
| * @see #addVerifyListener |
| */ |
| void removeVerifyListener (VerifyListener listener) { |
| checkWidget (); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Verify, listener); |
| } |
| |
| void setBackgroundColor (GdkColor color) { |
| super.setBackgroundColor (color); |
| OS.gtk_widget_modify_base (handle, 0, color); |
| } |
| |
| void setCursor (int /*long*/ cursor) { |
| int /*long*/ defaultCursor = 0; |
| if (cursor == 0) defaultCursor = OS.gdk_cursor_new (OS.GDK_XTERM); |
| super.setCursor (cursor != 0 ? cursor : defaultCursor); |
| if (cursor == 0) OS.gdk_cursor_destroy (defaultCursor); |
| } |
| |
| void setFontDescription (int /*long*/ font) { |
| super.setFontDescription (font); |
| } |
| |
| /** |
| * Sets the amount that the receiver's value will be |
| * modified by when the up/down arrows are pressed to |
| * the argument, which must be at least one. |
| * |
| * @param value the new increment (must be greater than zero) |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setIncrement (int value) { |
| checkWidget (); |
| if (value < 1) return; |
| int /*long*/ hAdjustment = OS.gtk_spin_button_get_adjustment (handle); |
| GtkAdjustment adjustment = new GtkAdjustment (); |
| OS.memmove (adjustment, hAdjustment); |
| double newValue = value; |
| int digits = OS.gtk_spin_button_get_digits (handle); |
| for (int i = 0; i < digits; i++) newValue /= 10; |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED); |
| OS.gtk_spin_button_set_increments (handle, newValue, adjustment.page_increment); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED); |
| } |
| |
| /** |
| * Sets the maximum value that the receiver will allow. This new |
| * value will be ignored if it is less than the receiver's current |
| * minimum value. If the new maximum is applied then the receiver's |
| * selection value will be adjusted if necessary to fall within its new range. |
| * |
| * @param value the new maximum, which must be greater than or equal to the current minimum |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setMaximum (int value) { |
| checkWidget (); |
| int /*long*/ hAdjustment = OS.gtk_spin_button_get_adjustment (handle); |
| GtkAdjustment adjustment = new GtkAdjustment (); |
| OS.memmove (adjustment, hAdjustment); |
| double newValue = value; |
| int digits = OS.gtk_spin_button_get_digits (handle); |
| for (int i = 0; i < digits; i++) newValue /= 10; |
| if (newValue < adjustment.lower) return; |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED); |
| OS.gtk_spin_button_set_range (handle, adjustment.lower, newValue); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED); |
| } |
| |
| /** |
| * Sets the minimum value that the receiver will allow. This new |
| * value will be ignored if it is greater than the receiver's |
| * current maximum value. If the new minimum is applied then the receiver's |
| * selection value will be adjusted if necessary to fall within its new range. |
| * |
| * @param value the new minimum, which must be less than or equal to the current maximum |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setMinimum (int value) { |
| checkWidget (); |
| int /*long*/ hAdjustment = OS.gtk_spin_button_get_adjustment (handle); |
| GtkAdjustment adjustment = new GtkAdjustment (); |
| OS.memmove (adjustment, hAdjustment); |
| double newValue = value; |
| int digits = OS.gtk_spin_button_get_digits (handle); |
| for (int i = 0; i < digits; i++) newValue /= 10; |
| if (newValue > adjustment.upper) return; |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED); |
| OS.gtk_spin_button_set_range (handle, newValue, adjustment.upper); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED); |
| } |
| |
| /** |
| * Sets the amount that the receiver's position will be |
| * modified by when the page up/down keys are pressed |
| * to the argument, which must be at least one. |
| * |
| * @param value the page increment (must be greater than zero) |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setPageIncrement (int value) { |
| checkWidget (); |
| if (value < 1) return; |
| int /*long*/ hAdjustment = OS.gtk_spin_button_get_adjustment (handle); |
| GtkAdjustment adjustment = new GtkAdjustment (); |
| OS.memmove (adjustment, hAdjustment); |
| double newValue = value; |
| int digits = OS.gtk_spin_button_get_digits (handle); |
| for (int i = 0; i < digits; i++) newValue /= 10; |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED); |
| OS.gtk_spin_button_set_increments (handle, adjustment.step_increment, newValue); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED); |
| } |
| |
| /** |
| * Sets the <em>selection</em>, which is the receiver's |
| * position, to the argument. If the argument is not within |
| * the range specified by minimum and maximum, it will be |
| * adjusted to fall within this range. |
| * |
| * @param value the new selection (must be zero or greater) |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setSelection (int value) { |
| checkWidget (); |
| double newValue = value; |
| int digits = OS.gtk_spin_button_get_digits (handle); |
| for (int i = 0; i < digits; i++) newValue /= 10; |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED); |
| OS.gtk_spin_button_set_value (handle, newValue); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED); |
| } |
| |
| /** |
| * Sets the maximum number of characters that the receiver's |
| * text field is capable of holding to be the argument. |
| * <p> |
| * To reset this value to the default, use <code>setTextLimit(Spinner.LIMIT)</code>. |
| * Specifying a limit value larger than <code>Spinner.LIMIT</code> sets the |
| * receiver's limit to <code>Spinner.LIMIT</code>. |
| * </p> |
| * @param limit new text limit |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_CANNOT_BE_ZERO - if the limit is zero</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see #LIMIT |
| * |
| * @since 3.4 |
| */ |
| public void setTextLimit (int limit) { |
| checkWidget (); |
| if (limit == 0) error (SWT.ERROR_CANNOT_BE_ZERO); |
| OS.gtk_entry_set_max_length (handle, limit); |
| } |
| |
| /** |
| * Sets the number of decimal places used by the receiver. |
| * <p> |
| * The digit setting is used to allow for floating point values in the receiver. |
| * For example, to set the selection to a floating point value of 1.37 call setDigits() with |
| * a value of 2 and setSelection() with a value of 137. Similarly, if getDigits() has a value |
| * of 2 and getSelection() returns 137 this should be interpreted as 1.37. This applies to all |
| * numeric APIs. |
| * </p> |
| * |
| * @param value the new digits (must be greater than or equal to zero) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the value is less than zero</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setDigits (int value) { |
| checkWidget (); |
| if (value < 0) error (SWT.ERROR_INVALID_ARGUMENT); |
| int digits = OS.gtk_spin_button_get_digits (handle); |
| if (value == digits) return; |
| int /*long*/ hAdjustment = OS.gtk_spin_button_get_adjustment (handle); |
| GtkAdjustment adjustment = new GtkAdjustment (); |
| OS.memmove (adjustment, hAdjustment); |
| int diff = Math.abs (value - digits); |
| int factor = 1; |
| for (int i = 0; i < diff; i++) factor *= 10; |
| if (digits > value) { |
| adjustment.value *= factor; |
| adjustment.upper *= factor; |
| adjustment.lower *= factor; |
| adjustment.step_increment *= factor; |
| adjustment.page_increment *= factor; |
| climbRate *= factor; |
| } else { |
| adjustment.value /= factor; |
| adjustment.upper /= factor; |
| adjustment.lower /= factor; |
| adjustment.step_increment /= factor; |
| adjustment.page_increment /= factor; |
| climbRate /= factor; |
| } |
| OS.memmove (hAdjustment, adjustment); |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED); |
| OS.gtk_spin_button_configure (handle, hAdjustment, climbRate, value); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED); |
| } |
| |
| /** |
| * Sets the receiver's selection, minimum value, maximum |
| * value, digits, increment and page increment all at once. |
| * <p> |
| * Note: This is similar to setting the values individually |
| * using the appropriate methods, but may be implemented in a |
| * more efficient fashion on some platforms. |
| * </p> |
| * |
| * @param selection the new selection value |
| * @param minimum the new minimum value |
| * @param maximum the new maximum value |
| * @param digits the new digits value |
| * @param increment the new increment value |
| * @param pageIncrement the new pageIncrement value |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.2 |
| */ |
| public void setValues (int selection, int minimum, int maximum, int digits, int increment, int pageIncrement) { |
| checkWidget (); |
| if (maximum < minimum) return; |
| if (digits < 0) return; |
| if (increment < 1) return; |
| if (pageIncrement < 1) return; |
| selection = Math.min (Math.max (minimum, selection), maximum); |
| double factor = 1; |
| for (int i = 0; i < digits; i++) factor *= 10; |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED); |
| OS.gtk_spin_button_set_range (handle, minimum / factor, maximum / factor); |
| OS.gtk_spin_button_set_increments (handle, increment / factor, pageIncrement / factor); |
| OS.gtk_spin_button_set_value (handle, selection / factor); |
| /* |
| * The value of climb-rate indicates the acceleration rate |
| * to spin the value when the button is pressed and hold |
| * on the arrow button. This value should be varied |
| * depending upon the value of digits. |
| */ |
| climbRate = 1.0 / factor; |
| int /*long*/ adjustment = OS.gtk_spin_button_get_adjustment(handle); |
| OS.gtk_spin_button_configure (handle, adjustment, climbRate, digits); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, VALUE_CHANGED); |
| } |
| |
| boolean checkSubwindow () { |
| return false; |
| } |
| |
| boolean translateTraversal (GdkEventKey keyEvent) { |
| int key = keyEvent.keyval; |
| switch (key) { |
| case OS.GDK_KP_Enter: |
| case OS.GDK_Return: { |
| int /*long*/ imContext = imContext (); |
| if (imContext != 0) { |
| int /*long*/ [] preeditString = new int /*long*/ [1]; |
| OS.gtk_im_context_get_preedit_string (imContext, preeditString, null, null); |
| if (preeditString [0] != 0) { |
| int length = OS.strlen (preeditString [0]); |
| OS.g_free (preeditString [0]); |
| if (length != 0) return false; |
| } |
| } |
| } |
| } |
| return super.translateTraversal (keyEvent); |
| } |
| |
| String verifyText (String string, int start, int end) { |
| if (string.length () == 0 && start == end) return null; |
| Event event = new Event (); |
| event.text = string; |
| event.start = start; |
| event.end = end; |
| int /*long*/ eventPtr = OS.gtk_get_current_event (); |
| if (eventPtr != 0) { |
| GdkEventKey gdkEvent = new GdkEventKey (); |
| OS.memmove (gdkEvent, eventPtr, GdkEventKey.sizeof); |
| switch (gdkEvent.type) { |
| case OS.GDK_KEY_PRESS: |
| setKeyState (event, gdkEvent); |
| break; |
| } |
| OS.gdk_event_free (eventPtr); |
| } |
| int index = 0; |
| if (OS.gtk_spin_button_get_digits (handle) > 0) { |
| String decimalSeparator = getDecimalSeparator (); |
| index = string.indexOf (decimalSeparator); |
| if (index != -1) { |
| string = string.substring (0, index) + string.substring (index + 1); |
| } |
| index = 0; |
| } |
| if (string.length () > 0) { |
| int /*long*/ hAdjustment = OS.gtk_spin_button_get_adjustment (handle); |
| GtkAdjustment adjustment = new GtkAdjustment (); |
| OS.memmove (adjustment, hAdjustment); |
| if (adjustment.lower < 0 && string.charAt (0) == '-') index++; |
| } |
| while (index < string.length ()) { |
| if (!Character.isDigit (string.charAt (index))) break; |
| index++; |
| } |
| event.doit = index == string.length (); |
| /* |
| * It is possible (but unlikely), that application |
| * code could have disposed the widget in the verify |
| * event. If this happens, answer null to cancel |
| * the operation. |
| */ |
| sendEvent (SWT.Verify, event); |
| if (!event.doit || isDisposed ()) return null; |
| return event.text; |
| } |
| |
| } |