diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Combo.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Combo.java | 2241 |
1 files changed, 0 insertions, 2241 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Combo.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Combo.java deleted file mode 100644 index 6e526d3b05..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Combo.java +++ /dev/null @@ -1,2241 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.swt.widgets; - - -import org.eclipse.swt.*; -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 controls that allow the user - * to choose an item from a list of items, or optionally - * enter a new value by typing it into an editable text - * field. Often, <code>Combo</code>s are used in the same place - * where a single selection <code>List</code> widget could - * be used but space is limited. A <code>Combo</code> takes - * less space than a <code>List</code> widget and shows - * similar information. - * <p> - * Note: Since <code>Combo</code>s can contain both a list - * and an editable text field, it is possible to confuse methods - * which access one versus the other (compare for example, - * <code>clearSelection()</code> and <code>deselectAll()</code>). - * The API documentation is careful to indicate either "the - * receiver's list" or the "the receiver's text field" to - * distinguish between the two cases. - * </p><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> - * <dl> - * <dt><b>Styles:</b></dt> - * <dd>DROP_DOWN, READ_ONLY, SIMPLE</dd> - * <dt><b>Events:</b></dt> - * <dd>DefaultSelection, Modify, Selection, Verify</dd> - * </dl> - * <p> - * Note: Only one of the styles DROP_DOWN and SIMPLE may be specified. - * </p><p> - * IMPORTANT: This class is <em>not</em> intended to be subclassed. - * </p> - * - * @see List - * @see <a href="http://www.eclipse.org/swt/snippets/#combo">Combo snippets</a> - * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> - * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> - * @noextend This class is not intended to be subclassed by clients. - */ -public class Combo extends Composite { - int /*long*/ buttonHandle, entryHandle, listHandle, textRenderer, cellHandle, popupHandle; - int lastEventTime, visibleCount = 5; - int /*long*/ gdkEventKey = 0; - int fixStart = -1, fixEnd = -1; - String [] items = new String [0]; - boolean ignoreSelect, lockText; - - /** - * the operating system limit for the number of characters - * that the text field in an instance of this class can hold - */ - 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 = 0xFFFF; - } - -/** - * 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#DROP_DOWN - * @see SWT#READ_ONLY - * @see SWT#SIMPLE - * @see Widget#checkSubclass - * @see Widget#getStyle - */ -public Combo (Composite parent, int style) { - super (parent, checkStyle (style)); -} - -/** - * Adds the argument to the end of the receiver's list. - * - * @param string the new item - * - * @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> - * - * @see #add(String,int) - */ -public void add (String string) { - checkWidget(); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - add (string, items.length); -} - -/** - * Adds the argument to the receiver's list at the given - * zero-relative index. - * <p> - * Note: To add an item at the end of the list, use the - * result of calling <code>getItemCount()</code> as the - * index or use <code>add(String)</code>. - * </p> - * - * @param string the new item - * @param index the index for the item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list (inclusive)</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 #add(String) - */ -public void add (String string, int index) { - checkWidget(); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - if (!(0 <= index && index <= items.length)) { - error (SWT.ERROR_INVALID_RANGE); - } - String [] newItems = new String [items.length + 1]; - System.arraycopy (items, 0, newItems, 0, index); - newItems [index] = string; - System.arraycopy (items, index, newItems, index + 1, items.length - index); - items = newItems; - byte [] buffer = Converter.wcsToMbcs (null, string, true); - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - OS.gtk_combo_box_insert_text (handle, index, buffer); - if ((style & SWT.RIGHT_TO_LEFT) != 0 && popupHandle != 0) { - OS.gtk_container_forall (popupHandle, display.setDirectionProc, OS.GTK_TEXT_DIR_RTL); - } - } else { - /* - * Feature in GTK. When the list is empty and the first item - * is added, the combo box selects that item replacing the - * text in the entry field. The fix is to avoid this by - * stopping the "delete" and "insert_text" signal emission. - */ - ignoreSelect = lockText = true; - int /*long*/ item = OS.gtk_list_item_new_with_label (buffer); - int /*long*/ label = OS.gtk_bin_get_child (item); - setForegroundColor (label, getForegroundColor ()); - OS.gtk_widget_modify_font (label, getFontDescription ()); - OS.gtk_widget_set_direction (label, OS.gtk_widget_get_direction (handle)); - OS.gtk_widget_show (item); - int /*long*/ items = OS.g_list_append (0, item); - OS.gtk_list_insert_items (listHandle, items, index); - ignoreSelect = lockText = false; - } -} - -/** - * 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 user changes the receiver's selection, by sending - * it one of the messages defined in the <code>SelectionListener</code> - * interface. - * <p> - * <code>widgetSelected</code> is called when the user changes the combo's list selection. - * <code>widgetDefaultSelected</code> is typically called when ENTER is pressed the combo's text area. - * </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 - * - * @since 3.1 - */ -public 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) { - /* - * Feature in Windows. It is not possible to create - * a combo box that has a border using Windows style - * bits. All combo boxes draw their own border and - * do not use the standard Windows border styles. - * Therefore, no matter what style bits are specified, - * clear the BORDER bits so that the SWT style will - * match the Windows widget. - * - * The Windows behavior is currently implemented on - * all platforms. - */ - style &= ~SWT.BORDER; - - /* - * 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. - */ - style &= ~(SWT.H_SCROLL | SWT.V_SCROLL); - style = checkBits (style, SWT.DROP_DOWN, SWT.SIMPLE, 0, 0, 0, 0); - if ((style & SWT.SIMPLE) != 0) return style & ~SWT.READ_ONLY; - return style; -} - -protected void checkSubclass () { - if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); -} - -/** - * Sets the selection in the receiver's text field to an empty - * selection starting just before the first character. If the - * text field is editable, this has the effect of placing the - * i-beam at the start of the text. - * <p> - * Note: To clear the selected items in the receiver's list, - * use <code>deselectAll()</code>. - * </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> - * - * @see #deselectAll - */ -public void clearSelection () { - checkWidget(); - if (entryHandle != 0) { - int position = OS.gtk_editable_get_position (entryHandle); - OS.gtk_editable_select_region (entryHandle, position, position); - } -} - -void clearText () { - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - if ((style & SWT.READ_ONLY) != 0) { - int index = OS.gtk_combo_box_get_active (handle); - if (index != -1) { - int /*long*/ modelHandle = OS.gtk_combo_box_get_model (handle); - int /*long*/ [] ptr = new int /*long*/ [1]; - int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); - OS.gtk_tree_model_get (modelHandle, iter, 0, ptr, -1); - OS.g_free (iter); - if (ptr [0] != 0 && OS.strlen (ptr [0]) > 0) postEvent (SWT.Modify); - OS.g_free (ptr [0]); - } - } else { - OS.gtk_entry_set_text (entryHandle, new byte[1]); - } - OS.gtk_combo_box_set_active (handle, -1); - OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - } -} - -public Point computeSize (int wHint, int hHint, boolean changed) { - checkWidget (); - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - return computeNativeSize (handle, wHint, hHint, changed); - } - 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 (entryHandle); - int /*long*/ layout = OS.gtk_entry_get_layout (entryHandle); - OS.pango_layout_get_size (layout, w, h); - int xborder = Display.INNER_BORDER, yborder = Display.INNER_BORDER; - int /*long*/ style = OS.gtk_widget_get_style (entryHandle); - xborder += OS.gtk_style_get_xthickness (style); - yborder += OS.gtk_style_get_ythickness (style); - int [] property = new int [1]; - OS.gtk_widget_style_get (entryHandle, OS.interior_focus, property, 0); - if (property [0] == 0) { - OS.gtk_widget_style_get (entryHandle, OS.focus_line_width, property, 0); - xborder += property [0]; - yborder += property [0]; - } - int width = OS.PANGO_PIXELS (w [0]) + xborder * 2; - int height = OS.PANGO_PIXELS (h [0]) + yborder * 2; - - GtkRequisition arrowRequesition = new GtkRequisition (); - OS.gtk_widget_size_request (buttonHandle, arrowRequesition); - GtkRequisition listRequesition = new GtkRequisition (); - int /*long*/ listParent = OS.gtk_widget_get_parent (listHandle); - OS.gtk_widget_size_request (listParent != 0 ? listParent : listHandle, listRequesition); - - width = Math.max (listRequesition.width, width) + arrowRequesition.width + 4; - width = wHint == SWT.DEFAULT ? width : wHint; - height = hHint == SWT.DEFAULT ? height : hHint; - return new Point (width, height); -} - -/** - * Copies the selected text. - * <p> - * The current selection is copied to the clipboard. - * </p> - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @since 2.1 - */ -public void copy () { - checkWidget (); - if (entryHandle != 0) OS.gtk_editable_copy_clipboard (entryHandle); -} - -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); - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - int /*long*/ oldList = OS.gtk_window_list_toplevels (); - if ((style & SWT.READ_ONLY) != 0) { - handle = OS.gtk_combo_box_new_text (); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - cellHandle = OS.gtk_bin_get_child (handle); - if (cellHandle == 0) error (SWT.ERROR_NO_HANDLES); - } else { - handle = OS.gtk_combo_box_entry_new_text (); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - entryHandle = OS.gtk_bin_get_child (handle); - if (entryHandle == 0) error (SWT.ERROR_NO_HANDLES); - } - popupHandle = findPopupHandle (oldList); - OS.gtk_container_add (fixedHandle, handle); - textRenderer = OS.gtk_cell_renderer_text_new (); - if (textRenderer == 0) error (SWT.ERROR_NO_HANDLES); - /* - * Feature in GTK. In order to make a read only combo box the same - * height as an editable combo box the ypad must be set to 0. In - * versions 2.4.x of GTK, a pad of 0 will clip some letters. The - * fix is to set the pad to 1. - */ - int pad = 0; - if (OS.GTK_VERSION < OS.VERSION(2, 6, 0)) pad = 1; - OS.g_object_set (textRenderer, OS.ypad, pad, 0); - /* - * Feature in GTK. In version 2.4.9 of GTK, a warning is issued - * when a call to gtk_cell_layout_clear() is made. The fix is to hide - * the warning. - */ - boolean warnings = display.getWarnings (); - display.setWarnings (false); - OS.gtk_cell_layout_clear (handle); - display.setWarnings (warnings); - OS.gtk_cell_layout_pack_start (handle, textRenderer, true); - OS.gtk_cell_layout_set_attributes (handle, textRenderer, OS.text, 0, 0); - - /* - * Feature in GTK. There is no API to query the button - * handle from a combo box although it is possible to get the - * text field. The button handle is needed to hook events. The - * fix is to walk the combo tree and find the first child that is - * an instance of button. - */ - OS.gtk_container_forall (handle, display.allChildrenProc, 0); - if (display.allChildren != 0) { - int /*long*/ list = display.allChildren; - while (list != 0) { - int /*long*/ widget = OS.g_list_data (list); - if (OS.GTK_IS_BUTTON (widget)) { - buttonHandle = widget; - break; - } - list = OS.g_list_next (list); - } - OS.g_list_free (display.allChildren); - display.allChildren = 0; - } - /* - * Feature in GTK. By default, read only combo boxes - * process the RETURN key rather than allowing the - * default button to process the key. The fix is to - * clear the GTK_RECEIVES_DEFAULT flag. - */ - if ((style & SWT.READ_ONLY) != 0 && buttonHandle != 0) { - OS.GTK_WIDGET_UNSET_FLAGS (buttonHandle, OS.GTK_RECEIVES_DEFAULT); - } - } else { - handle = OS.gtk_combo_new (); - if (handle == 0) error (SWT.ERROR_NO_HANDLES); - OS.gtk_container_add (fixedHandle, handle); - GtkCombo combo = new GtkCombo (); - OS.memmove (combo, handle); - entryHandle = combo.entry; - listHandle = combo.list; - - if (OS.GTK_VERSION < OS.VERSION (2, 4, 0)) { - int /*long*/ parentHandle = 0; - int /*long*/ temp = listHandle; - while ((temp = OS.gtk_widget_get_parent(temp)) != 0) { - parentHandle = temp; - } - popupHandle = parentHandle; - if (popupHandle != 0) { - int /*long*/ modalGroup = getShell().modalGroup; - if (modalGroup != 0) { - OS.gtk_window_group_add_window (modalGroup, popupHandle); - } - } - } - /* - * Feature in GTK. There is no API to query the arrow - * handle from a combo box although it is possible to - * get the list and text field. The arrow handle is needed - * to hook events. The fix is to find the first child that is - * not the entry or list and assume this is the arrow handle. - */ - int /*long*/ list = OS.gtk_container_get_children (handle); - if (list != 0) { - int i = 0, count = OS.g_list_length (list); - while (i<count) { - int /*long*/ childHandle = OS.g_list_nth_data (list, i); - if (childHandle != entryHandle && childHandle != listHandle) { - buttonHandle = childHandle; - break; - } - i++; - } - OS.g_list_free (list); - } - - boolean editable = (style & SWT.READ_ONLY) == 0; - OS.gtk_editable_set_editable (entryHandle, editable); - OS.gtk_combo_disable_activate (handle); - OS.gtk_combo_set_case_sensitive (handle, true); - } -} - -/** - * 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> - * - * @since 2.1 - */ -public void cut () { - checkWidget (); - if (entryHandle != 0) OS.gtk_editable_cut_clipboard (entryHandle); -} - -void deregister () { - super.deregister (); - if (buttonHandle != 0) display.removeWidget (buttonHandle); - if (entryHandle != 0) display.removeWidget (entryHandle); - if (listHandle != 0) display.removeWidget (listHandle); - int /*long*/ imContext = imContext (); - if (imContext != 0) display.removeWidget (imContext); -} - -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; -} - -int /*long*/ findPopupHandle (int /*long*/ oldList) { - int /*long*/ hdl = 0; - int /*long*/ currentList = OS.gtk_window_list_toplevels(); - int /*long*/ oldFromList = oldList; - int /*long*/ newFromList = currentList; - boolean isFound; - while (newFromList != 0) { - int /*long*/ newToplevel = OS.g_list_data(newFromList); - isFound = false; - oldFromList = oldList; - while (oldFromList != 0) { - int /*long*/ oldToplevel = OS.g_list_data(oldFromList); - if (newToplevel == oldToplevel) { - isFound = true; - break; - } - oldFromList = OS.g_list_next(oldFromList); - } - if (!isFound) { - hdl = newToplevel; - break; - } - newFromList = OS.g_list_next(newFromList); - } - OS.g_list_free(oldList); - OS.g_list_free(currentList); - return hdl; -} - -void fixModal (int /*long*/ group, int /*long*/ modalGroup) { - if (popupHandle != 0) { - if (group != 0) { - OS.gtk_window_group_add_window (group, popupHandle); - } else { - if (modalGroup != 0) { - OS.gtk_window_group_remove_window (modalGroup, popupHandle); - } - } - } -} - -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; -} - -int /*long*/ fontHandle () { - if (entryHandle != 0) return entryHandle; - return super.fontHandle (); -} - -int /*long*/ focusHandle () { - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - if ((style & SWT.READ_ONLY) != 0 && buttonHandle != 0) return buttonHandle; - } - if (entryHandle != 0) return entryHandle; - return super.focusHandle (); -} - -boolean hasFocus () { - if (super.hasFocus ()) return true; - if (entryHandle != 0 && OS.GTK_WIDGET_HAS_FOCUS (entryHandle)) return true; - if (listHandle != 0 && OS.GTK_WIDGET_HAS_FOCUS (listHandle)) return true; - return false; -} - -void hookEvents () { - super.hookEvents (); - if (OS.GTK_VERSION >= OS.VERSION(2, 4, 0)) { - OS.g_signal_connect_closure (handle, OS.changed, display.closures [CHANGED], true); - } - - if (entryHandle != 0) { - OS.g_signal_connect_closure (entryHandle, OS.changed, display.closures [CHANGED], true); - OS.g_signal_connect_closure (entryHandle, OS.insert_text, display.closures [INSERT_TEXT], false); - OS.g_signal_connect_closure (entryHandle, OS.delete_text, display.closures [DELETE_TEXT], false); - OS.g_signal_connect_closure (entryHandle, OS.activate, display.closures [ACTIVATE], false); - OS.g_signal_connect_closure (entryHandle, OS.populate_popup, display.closures [POPULATE_POPUP], false); - } - int eventMask = OS.GDK_POINTER_MOTION_MASK | OS.GDK_BUTTON_PRESS_MASK | - OS.GDK_BUTTON_RELEASE_MASK; - int /*long*/ [] handles = new int /*long*/ [] {buttonHandle, entryHandle, listHandle}; - for (int i=0; i<handles.length; i++) { - int /*long*/ eventHandle = handles [i]; - if (eventHandle != 0) { - /* Connect the mouse signals */ - OS.gtk_widget_add_events (eventHandle, eventMask); - OS.g_signal_connect_closure_by_id (eventHandle, display.signalIds [BUTTON_PRESS_EVENT], 0, display.closures [BUTTON_PRESS_EVENT], false); - OS.g_signal_connect_closure_by_id (eventHandle, display.signalIds [BUTTON_RELEASE_EVENT], 0, display.closures [BUTTON_RELEASE_EVENT], false); - OS.g_signal_connect_closure_by_id (eventHandle, display.signalIds [MOTION_NOTIFY_EVENT], 0, display.closures [MOTION_NOTIFY_EVENT], false); - /* - * Feature in GTK. Events such as mouse move are propagated up - * the widget hierarchy and are seen by the parent. This is the - * correct GTK behavior but not correct for SWT. The fix is to - * hook a signal after and stop the propagation using a negative - * event number to distinguish this case. - */ - OS.g_signal_connect_closure_by_id (eventHandle, display.signalIds [BUTTON_PRESS_EVENT], 0, display.closures [BUTTON_PRESS_EVENT_INVERSE], true); - OS.g_signal_connect_closure_by_id (eventHandle, display.signalIds [BUTTON_RELEASE_EVENT], 0, display.closures [BUTTON_RELEASE_EVENT_INVERSE], true); - OS.g_signal_connect_closure_by_id (eventHandle, display.signalIds [MOTION_NOTIFY_EVENT], 0, display.closures [MOTION_NOTIFY_EVENT_INVERSE], true); - - /* Connect the event_after signal for both key and mouse */ - if (eventHandle != focusHandle ()) { - OS.g_signal_connect_closure_by_id (eventHandle, display.signalIds [EVENT_AFTER], 0, display.closures [EVENT_AFTER], 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 blockMask = OS.G_SIGNAL_MATCH_DATA | OS.G_SIGNAL_MATCH_ID; - OS.g_signal_handlers_block_matched (imContext, blockMask, id, 0, 0, 0, entryHandle); - } -} - -int /*long*/ imContext () { - return entryHandle != 0 ? OS.GTK_ENTRY_IM_CONTEXT (entryHandle) : 0; -} - -/** - * Deselects the item at the given zero-relative index in the receiver's - * list. If the item at the index was already deselected, it remains - * deselected. Indices that are out of range are ignored. - * - * @param index the index of the item to deselect - * - * @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 deselect (int index) { - checkWidget(); - if (index < 0 || index >= items.length) return; - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - if (OS.gtk_combo_box_get_active (handle) == index) { - clearText (); - } - } else { - ignoreSelect = true; - int /*long*/ children = OS.gtk_container_get_children (listHandle); - int /*long*/ item = OS.g_list_nth_data (children, index); - boolean selected = OS.GTK_WIDGET_STATE (item) == OS.GTK_STATE_SELECTED; - if (selected) { - OS.gtk_list_unselect_all (listHandle); - OS.gtk_entry_set_text (entryHandle, new byte[1]); - } - OS.g_list_free (children); - ignoreSelect = false; - } -} - -/** - * Deselects all selected items in the receiver's list. - * <p> - * Note: To clear the selection in the receiver's text field, - * use <code>clearSelection()</code>. - * </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> - * - * @see #clearSelection - */ -public void deselectAll () { - checkWidget(); - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - clearText (); - } else { - ignoreSelect = true; - OS.gtk_list_unselect_all (listHandle); - OS.gtk_entry_set_text (entryHandle, new byte[1]); - ignoreSelect = false; - } -} - -boolean dragDetect(int x, int y, boolean filter, boolean[] consume) { - if (filter && entryHandle != 0) { - int [] index = new int [1]; - int [] trailing = new int [1]; - int /*long*/ layout = OS.gtk_entry_get_layout (entryHandle); - OS.pango_layout_xy_to_index (layout, x * OS.PANGO_SCALE, y * OS.PANGO_SCALE, index, trailing); - int /*long*/ ptr = OS.pango_layout_get_text (layout); - int position = (int)/*64*/OS.g_utf8_pointer_to_offset (ptr, ptr + index[0]) + trailing[0]; - Point selection = getSelection (); - if (selection.x <= position && position < selection.y) { - if (super.dragDetect (x, y, filter, consume)) { - if (consume != null) consume [0] = true; - return true; - } - } - return false; - } - return super.dragDetect (x, y, filter, consume); -} - -int /*long*/ enterExitHandle () { - return fixedHandle; -} - -int /*long*/ eventWindow () { - return paintWindow (); -} - -GdkColor getBackgroundColor () { - return getBaseColor (); -} - -GdkColor getForegroundColor () { - return getTextColor (); -} - -/** - * Returns the item at the given, zero-relative index in the - * receiver's list. Throws an exception if the index is out - * of range. - * - * @param index the index of the item to return - * @return the item at the given index - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</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 String getItem (int index) { - checkWidget(); - if (!(0 <= index && index < items.length)) { - error (SWT.ERROR_INVALID_RANGE); - } - return items [index]; -} - -/** - * Returns the number of items contained in the receiver's list. - * - * @return the number of items - * - * @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 getItemCount () { - checkWidget(); - return items.length; -} - -/** - * Returns the height of the area which would be used to - * display <em>one</em> of the items in the receiver's list. - * - * @return the height of one 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 int getItemHeight () { - checkWidget(); - return fontHeight (getFontDescription (), listHandle != 0 ? listHandle : handle); -} - -/** - * Returns a (possibly empty) array of <code>String</code>s which are - * the items in the receiver's list. - * <p> - * Note: This is not the actual structure used by the receiver - * to maintain its list of items, so modifying the array will - * not affect the receiver. - * </p> - * - * @return the items in the receiver's list - * - * @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 [] getItems () { - checkWidget(); - String [] result = new String [items.length]; - System.arraycopy (items, 0, result, 0, items.length); - return result; -} - -/** - * Returns <code>true</code> if the receiver's list is visible, - * and <code>false</code> otherwise. - * <p> - * If one of the receiver's ancestors is not visible or some - * other condition makes the receiver not visible, this method - * may still indicate that it is considered visible even though - * it may not actually be showing. - * </p> - * - * @return the receiver's list's visibility 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> - * - * @since 3.4 - */ -public boolean getListVisible () { - checkWidget (); - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - return popupHandle != 0 && OS.GTK_WIDGET_VISIBLE (popupHandle); - } - return false; -} - -String getNameText () { - return getText (); -} - -/** - * Returns the orientation of the receiver. - * - * @return the orientation style - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @since 2.1.2 - */ -public int getOrientation () { - checkWidget(); - return style & (SWT.LEFT_TO_RIGHT | SWT.RIGHT_TO_LEFT); -} - -/** - * Returns a <code>Point</code> whose x coordinate is the - * character position representing the start of the selection - * in the receiver's text field, and whose y coordinate is the - * character position representing the end of the selection. - * An "empty" selection is indicated by the x and y coordinates - * having the same value. - * <p> - * Indexing is zero based. The range of a selection is from - * 0..N where N is the number of characters in the widget. - * </p> - * - * @return a point representing the selection start and end - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public Point getSelection () { - checkWidget (); - if ((style & SWT.READ_ONLY) != 0) { - int length = 0; - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - int index = OS.gtk_combo_box_get_active (handle); - if (index != -1) length = getItem (index).length (); - } else { - int /*long*/ str = OS.gtk_entry_get_text (entryHandle); - if (str != 0) length = (int)/*64*/OS.g_utf8_strlen (str, -1); - } - return new Point (0, length); - } - int [] start = new int [1]; - int [] end = new int [1]; - if (entryHandle != 0) { - OS.gtk_editable_get_selection_bounds (entryHandle, start, end); - } - return new Point(start [0], end [0]); -} - -/** - * Returns the zero-relative index of the item which is currently - * selected in the receiver's list, or -1 if no item is selected. - * - * @return the index of the selected 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 int getSelectionIndex () { - checkWidget(); - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - return OS.gtk_combo_box_get_active (handle); - } - int index = 0, result = -1; - int /*long*/ children = OS.gtk_container_get_children (listHandle); - int /*long*/ temp = children; - while (temp != 0) { - int /*long*/ item = OS.g_list_data (temp); - if (OS.GTK_WIDGET_STATE (item) == OS.GTK_STATE_SELECTED) { - result = index; - break; - } - index++; - temp = OS.g_list_next (temp); - } - OS.g_list_free (children); - return result; -} - -/** - * 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> - */ -public String getText () { - checkWidget(); - if (entryHandle != 0) { - int /*long*/ str = OS.gtk_entry_get_text (entryHandle); - 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)); - } else { - int index = OS.gtk_combo_box_get_active (handle); - return index != -1 ? getItem (index) : ""; - } -} - -String getText (int start, int stop) { - /* - * NOTE: The current implementation uses substring () - * which can reference a potentially large character - * array. - */ - return getText ().substring (start, stop - 1); -} - -/** - * Returns the height of the receivers's text field. - * - * @return the text height - * - * @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 getTextHeight () { - checkWidget(); - GtkRequisition requisition = new GtkRequisition (); - gtk_widget_size_request (handle, requisition); - return OS.GTK_WIDGET_REQUISITION_HEIGHT (handle); -} - -/** - * 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>Combo.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 - */ -public int getTextLimit () { - checkWidget(); - int limit = entryHandle != 0 ? OS.gtk_entry_get_max_length (entryHandle) : 0; - return limit == 0 ? LIMIT : limit; -} - -/** - * Gets the number of items that are visible in the drop - * down portion of the receiver's list. - * <p> - * Note: This operation is a hint and is not supported on - * platforms that do not have this concept. - * </p> - * - * @return the number of items that are visible - * - * @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 3.0 - */ -public int getVisibleItemCount () { - checkWidget (); - return visibleCount; -} - -int /*long*/ gtk_activate (int /*long*/ widget) { - postEvent (SWT.DefaultSelection); - return 0; -} - -int /*long*/ gtk_button_press_event (int /*long*/ widget, int /*long*/ event) { - /* - * Feature in GTK. Depending on where the user clicks, GTK prevents - * the left mouse button event from being propagated. The fix is to - * send the mouse event from the event_after handler. - */ - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - GdkEventButton gdkEvent = new GdkEventButton (); - OS.memmove (gdkEvent, event, GdkEventButton.sizeof); - if (gdkEvent.type == OS.GDK_BUTTON_PRESS && gdkEvent.button == 1 && (style & SWT.READ_ONLY) != 0) { - return gtk_button_press_event(widget, event, false); - } - } - return super.gtk_button_press_event (widget, event); -} - -int /*long*/ gtk_changed (int /*long*/ widget) { - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - if (widget == handle) { - if (entryHandle == 0) { - sendEvent(SWT.Modify); - if (isDisposed ()) return 0; - } - /* - * Feature in GTK. GTK emits a changed signal whenever - * the contents of a combo box are altered by typing or - * by selecting an item in the list, but the event should - * only be sent when the list is selected. The fix is to - * only send out a selection event when there is a selected - * item. - * - * NOTE: This code relies on GTK clearing the selected - * item and not matching the item as the user types. - */ - int index = OS.gtk_combo_box_get_active (handle); - if (index != -1) postEvent (SWT.Selection); - return 0; - } - } else { - if (!ignoreSelect) { - int /*long*/ ptr = OS.gtk_entry_get_text (entryHandle); - int length = OS.strlen (ptr); - byte [] buffer = new byte [length]; - OS.memmove (buffer, ptr, length); - String text = new String (Converter.mbcsToWcs (null, buffer)); - for (int i = 0; i < items.length; i++) { - if (items [i].equals (text)) { - postEvent (SWT.Selection); - break; - } - } - } - } - /* - * 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 (entryHandle)) 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, entryHandle); - 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, entryHandle); - if (fixStart != -1 && fixEnd != -1) { - OS.gtk_editable_set_position (entryHandle, fixStart); - OS.gtk_editable_select_region (entryHandle, fixStart, fixEnd); - } - fixStart = fixEnd = -1; - return 0; -} - -int /*long*/ gtk_delete_text (int /*long*/ widget, int /*long*/ start_pos, int /*long*/ end_pos) { - if (lockText) { - OS.gtk_list_unselect_item (listHandle, 0); - OS.g_signal_stop_emission_by_name (entryHandle, OS.delete_text); - return 0; - } - if (!hooks (SWT.Verify) && !filters (SWT.Verify)) return 0; - String newText = verifyText ("", (int)/*64*/start_pos, (int)/*64*/end_pos); - if (newText == null) { - OS.g_signal_stop_emission_by_name (entryHandle, 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 (entryHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - OS.g_signal_handlers_block_matched (entryHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); - OS.gtk_editable_insert_text (entryHandle, buffer, buffer.length, pos); - OS.g_signal_handlers_unblock_matched (entryHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); - OS.g_signal_handlers_unblock_matched (entryHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - OS.gtk_editable_set_position (entryHandle, pos [0]); - } - } - return 0; -} - -int /*long*/ gtk_event_after (int /*long*/ widget, int /*long*/ gdkEvent) { - /* - * Feature in GTK. Depending on where the user clicks, GTK prevents - * the left mouse button event from being propagated. The fix is to - * send the mouse event from the event_after handler. - * - * Feature in GTK. When the user clicks anywhere in an editable - * combo box, a single focus event should be issued, despite the - * fact that focus might switch between the drop down button and - * the text field. The fix is to use gtk_combo_box_set_focus_on_click () - * to eat all focus events while focus is in the combo box. When the - * user clicks on the drop down button focus is assigned to the text - * field. - */ - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - GdkEvent event = new GdkEvent (); - OS.memmove (event, gdkEvent, GdkEvent.sizeof); - switch (event.type) { - case OS.GDK_BUTTON_PRESS: { - GdkEventButton gdkEventButton = new GdkEventButton (); - OS.memmove (gdkEventButton, gdkEvent, GdkEventButton.sizeof); - if (gdkEventButton.button == 1) { - if ((style & SWT.READ_ONLY) != 0 && !sendMouseEvent (SWT.MouseDown, gdkEventButton.button, display.clickCount, 0, false, gdkEventButton.time, gdkEventButton.x_root, gdkEventButton.y_root, false, gdkEventButton.state)) { - return 1; - } - if (OS.GTK_VERSION >= OS.VERSION (2, 6, 0)) { - if ((style & SWT.READ_ONLY) == 0 && widget == buttonHandle) { - OS.gtk_widget_grab_focus (entryHandle); - } - } - } - break; - } - case OS.GDK_FOCUS_CHANGE: { - if (OS.GTK_VERSION >= OS.VERSION (2, 6, 0)) { - if ((style & SWT.READ_ONLY) == 0) { - GdkEventFocus gdkEventFocus = new GdkEventFocus (); - OS.memmove (gdkEventFocus, gdkEvent, GdkEventFocus.sizeof); - if (gdkEventFocus.in != 0) { - OS.gtk_combo_box_set_focus_on_click (handle, false); - } else { - OS.gtk_combo_box_set_focus_on_click (handle, true); - } - } - } - break; - } - } - } - 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 (lockText) { - OS.gtk_list_unselect_item (listHandle, 0); - OS.g_signal_stop_emission_by_name (entryHandle, OS.insert_text); - return 0; - } - 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); - if (pos [0] == -1) { - int /*long*/ ptr = OS.gtk_entry_get_text (entryHandle); - pos [0] = (int)/*64*/OS.g_utf8_strlen (ptr, -1); - } - String newText = verifyText (oldText, pos [0], pos [0]); - if (newText != oldText) { - int [] newStart = new int [1], newEnd = new int [1]; - OS.gtk_editable_get_selection_bounds (entryHandle, newStart, newEnd); - if (newText != null) { - if (newStart [0] != newEnd [0]) { - OS.g_signal_handlers_block_matched (entryHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_TEXT); - OS.g_signal_handlers_block_matched (entryHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - OS.gtk_editable_delete_selection (entryHandle); - OS.g_signal_handlers_unblock_matched (entryHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_TEXT); - OS.g_signal_handlers_unblock_matched (entryHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - } - byte [] buffer3 = Converter.wcsToMbcs (null, newText, false); - OS.g_signal_handlers_block_matched (entryHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); - OS.gtk_editable_insert_text (entryHandle, buffer3, buffer3.length, pos); - OS.g_signal_handlers_unblock_matched (entryHandle, 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 (entryHandle, 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; - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0) && (style & SWT.READ_ONLY) == 0) { - GdkEventKey keyEvent = new GdkEventKey (); - OS.memmove (keyEvent, event, GdkEventKey.sizeof); - int oldIndex = OS.gtk_combo_box_get_active (handle); - int newIndex = oldIndex; - int key = keyEvent.keyval; - switch (key) { - case OS.GDK_Down: - case OS.GDK_KP_Down: - if (oldIndex != (items.length - 1)) { - newIndex = oldIndex + 1; - } - break; - case OS.GDK_Up: - case OS.GDK_KP_Up: - if (oldIndex != -1 && oldIndex != 0) { - newIndex = oldIndex - 1; - } - break; - /* - * Feature in GTK. In gtk_combo_box, the PageUp and PageDown keys - * go the first and last items in the list rather than scrolling - * a page at a time. The fix is to emulate this behavior for - * gtk_combo_box_entry. - */ - case OS.GDK_Page_Up: - case OS.GDK_KP_Page_Up: - newIndex = 0; - break; - case OS.GDK_Page_Down: - case OS.GDK_KP_Page_Down: - newIndex = items.length - 1; - break; - } - if (newIndex != oldIndex) { - OS.gtk_combo_box_set_active (handle, newIndex); - return 1; - } - } - 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; -} - -/** - * Searches the receiver's list starting at the first item - * (index 0) until an item is found that is equal to the - * argument, and returns the index of that item. If no item - * is found, returns -1. - * - * @param string the search item - * @return the index of the item - * - * @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 int indexOf (String string) { - checkWidget(); - return indexOf (string, 0); -} - -/** - * Searches the receiver's list starting at the given, - * zero-relative index until an item is found that is equal - * to the argument, and returns the index of that item. If - * no item is found or the starting index is out of range, - * returns -1. - * - * @param string the search item - * @param start the zero-relative index at which to begin the search - * @return the index of the item - * - * @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 int indexOf (String string, int start) { - checkWidget(); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - if (!(0 <= start && start < items.length)) return -1; - for (int i=start; i<items.length; i++) { - if (string.equals(items [i])) return i; - } - return -1; -} - -boolean isFocusHandle(int widget) { - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - if (buttonHandle != 0 && widget == buttonHandle) return true; - if (entryHandle != 0 && widget == entryHandle) return true; - } - return super.isFocusHandle (widget); -} - -int /*long*/ paintWindow () { - int /*long*/ childHandle = entryHandle != 0 ? entryHandle : handle; - OS.gtk_widget_realize (childHandle); - int /*long*/ window = OS.GTK_WIDGET_WINDOW (childHandle); - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - if ((style & SWT.READ_ONLY) != 0) return window; - } - 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> - * - * @since 2.1 - */ -public void paste () { - checkWidget (); - if (entryHandle != 0) OS.gtk_editable_paste_clipboard (entryHandle); -} - -int /*long*/ parentingHandle() { - return fixedHandle; -} - -void register () { - super.register (); - if (buttonHandle != 0) display.addWidget (buttonHandle, this); - if (entryHandle != 0) display.addWidget (entryHandle, this); - if (listHandle != 0) display.addWidget (listHandle, this); - int /*long*/ imContext = imContext (); - if (imContext != 0) display.addWidget (imContext, this); -} - -void releaseHandle () { - super.releaseHandle (); - buttonHandle = entryHandle = listHandle = 0; -} - -void releaseWidget () { - super.releaseWidget (); - textRenderer = 0; - fixIM (); -} - -/** - * Removes the item from the receiver's list at the given - * zero-relative index. - * - * @param index the index for the item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</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 remove (int index) { - checkWidget(); - if (!(0 <= index && index < items.length)) { - error (SWT.ERROR_INVALID_RANGE); - } - String [] oldItems = items; - String [] newItems = new String [oldItems.length - 1]; - System.arraycopy (oldItems, 0, newItems, 0, index); - System.arraycopy (oldItems, index + 1, newItems, index, oldItems.length - index - 1); - items = newItems; - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - if (OS.gtk_combo_box_get_active (handle) == index) clearText (); - OS.gtk_combo_box_remove_text (handle, index); - } else { - ignoreSelect = true; - int /*long*/ children = OS.gtk_container_get_children (listHandle); - int /*long*/ item = OS.g_list_nth_data (children, index); - boolean selected = OS.GTK_WIDGET_STATE (item) == OS.GTK_STATE_SELECTED; - int /*long*/ items = OS.g_list_append (0, item); - OS.gtk_list_remove_items (listHandle, items); - OS.g_list_free (items); - OS.g_list_free (children); - if (selected) { - OS.gtk_entry_set_text (entryHandle, new byte[1]); - } - ignoreSelect = false; - } -} - -/** - * Removes the items from the receiver's list which are - * between the given zero-relative start and end - * indices (inclusive). - * - * @param start the start of the range - * @param end the end of the range - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_RANGE - if either the start or end are not between 0 and the number of elements in the list minus 1 (inclusive)</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 remove (int start, int end) { - checkWidget(); - if (start > end) return; - if (!(0 <= start && start <= end && end < items.length)) { - error (SWT.ERROR_INVALID_RANGE); - } - String [] oldItems = items; - String [] newItems = new String [oldItems.length - (end - start + 1)]; - System.arraycopy (oldItems, 0, newItems, 0, start); - System.arraycopy (oldItems, end + 1, newItems, start, oldItems.length - end - 1); - items = newItems; - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - int index = OS.gtk_combo_box_get_active (handle); - if (start <= index && index <= end) clearText(); - for (int i = end; i >= start; i--) { - OS.gtk_combo_box_remove_text (handle, i); - } - } else { - boolean selected = false; - ignoreSelect = true; - int /*long*/ items = 0; - int /*long*/ children = OS.gtk_container_get_children (listHandle); - for (int i = start; i <= end; i++) { - int /*long*/ item = OS.g_list_nth_data (children, i); - selected |= OS.GTK_WIDGET_STATE (item) == OS.GTK_STATE_SELECTED; - items = OS.g_list_append (items, item); - } - OS.gtk_list_remove_items (listHandle, items); - OS.g_list_free (items); - OS.g_list_free (children); - if (selected) { - OS.gtk_entry_set_text (entryHandle, new byte[1]); - } - ignoreSelect = false; - } -} - -/** - * Searches the receiver's list starting at the first item - * until an item is found that is equal to the argument, - * and removes that item from the list. - * - * @param string the item to remove - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * <li>ERROR_INVALID_ARGUMENT - if the string is not found in the list</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 remove (String string) { - checkWidget(); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - int index = indexOf (string, 0); - if (index == -1) error (SWT.ERROR_INVALID_ARGUMENT); - remove (index); -} - -/** - * Removes all of the items from the receiver's list and clear the - * contents of receiver's text field. - * <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 removeAll () { - checkWidget(); - int count = items.length; - items = new String[0]; - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - clearText (); - for (int i = count - 1; i >= 0; i--) { - OS.gtk_combo_box_remove_text (handle, i); - } - } else { - ignoreSelect = true; - OS.gtk_list_clear_items (listHandle, 0, -1); - OS.gtk_entry_set_text (entryHandle, new byte[1]); - ignoreSelect = false; - } -} - -/** - * 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 user changes the receiver's selection. - * - * @param listener the listener which should no longer be notified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see SelectionListener - * @see #addSelectionListener - */ -public void removeSelectionListener (SelectionListener listener) { - checkWidget(); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.Selection, listener); - eventTable.unhook (SWT.DefaultSelection,listener); -} - -/** - * Removes the listener from the collection of listeners who will - * be notified when the control is verified. - * - * @param listener the listener which should no longer be notified - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see VerifyListener - * @see #addVerifyListener - * - * @since 3.1 - */ -public void removeVerifyListener (VerifyListener listener) { - checkWidget (); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.Verify, listener); -} - -/** - * Selects the item at the given zero-relative index in the receiver's - * list. If the item at the index was already selected, it remains - * selected. Indices that are out of range are ignored. - * - * @param index the index of the item to select - * - * @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 select (int index) { - checkWidget(); - if (index < 0 || index >= items.length) return; - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - OS.gtk_combo_box_set_active (handle, index); - OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - if ((style & SWT.READ_ONLY) != 0) { - /* - * Feature in GTK. Read Only combo boxes do not get a chance to send out a - * Modify event in the gtk_changed callback. The fix is to send a Modify event - * here. - */ - sendEvent (SWT.Modify); - } - } else { - ignoreSelect = true; - OS.gtk_list_select_item (listHandle, index); - ignoreSelect = false; - } -} - -void setBackgroundColor (GdkColor color) { - super.setBackgroundColor (color); - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - if (entryHandle != 0) OS.gtk_widget_modify_base (entryHandle, 0, color); - OS.g_object_set (textRenderer, OS.background_gdk, color, 0); - } else { - OS.gtk_widget_modify_base (entryHandle, 0, color); - if (listHandle != 0) OS.gtk_widget_modify_base (listHandle, 0, color); - } -} - -int setBounds (int x, int y, int width, int height, boolean move, boolean resize) { - int newHeight = height; - if (resize) newHeight = Math.max (getTextHeight (), height); - return super.setBounds (x, y, width, newHeight, move, resize); -} - -void setFontDescription (int /*long*/ font) { - super.setFontDescription (font); - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - if (entryHandle != 0) OS.gtk_widget_modify_font (entryHandle, font); - OS.g_object_set (textRenderer, OS.font_desc, font, 0); - if ((style & SWT.READ_ONLY) != 0) { - /* - * Bug in GTK. Setting the font can leave the combo box with an - * invalid minimum size. The fix is to temporarily change the - * selected item to force the combo box to resize. - */ - int index = OS.gtk_combo_box_get_active (handle); - OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - OS.gtk_combo_box_set_active (handle, -1); - OS.gtk_combo_box_set_active (handle, index); - OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - } - } else { - OS.gtk_widget_modify_font (entryHandle, font); - if (listHandle != 0) { - OS.gtk_widget_modify_font (listHandle, font); - int /*long*/ itemsList = OS.gtk_container_get_children (listHandle); - if (itemsList != 0) { - int count = OS.g_list_length (itemsList); - for (int i=count - 1; i>=0; i--) { - int /*long*/ widget = OS.gtk_bin_get_child (OS.g_list_nth_data (itemsList, i)); - OS.gtk_widget_modify_font (widget, font); - } - OS.g_list_free (itemsList); - } - } - } -} - -void setForegroundColor (GdkColor color) { - super.setForegroundColor (color); - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - if (entryHandle != 0) setForegroundColor (entryHandle, color); - OS.g_object_set (textRenderer, OS.foreground_gdk, color, 0); - } else { - setForegroundColor (entryHandle, color); - if (listHandle != 0) { - setForegroundColor (listHandle, color); - int /*long*/ itemsList = OS.gtk_container_get_children (listHandle); - if (itemsList != 0) { - int count = OS.g_list_length (itemsList); - for (int i=count - 1; i>=0; i--) { - int /*long*/ widget = OS.gtk_bin_get_child (OS.g_list_nth_data (itemsList, i)); - setForegroundColor (widget, color); - } - OS.g_list_free (itemsList); - } - } - } -} - -/** - * Sets the text of the item in the receiver's list at the given - * zero-relative index to the string argument. - * - * @param index the index for the item - * @param string the new text for the item - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> - * <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 setItem (int index, String string) { - checkWidget(); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - if (!(0 <= index && index < items.length)) { - error (SWT.ERROR_INVALID_ARGUMENT); - } - items [index] = string; - byte [] buffer = Converter.wcsToMbcs (null, string, true); - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - OS.gtk_combo_box_remove_text (handle, index); - OS.gtk_combo_box_insert_text (handle, index, buffer); - if ((style & SWT.RIGHT_TO_LEFT) != 0 && popupHandle != 0) { - OS.gtk_container_forall (popupHandle, display.setDirectionProc, OS.GTK_TEXT_DIR_RTL); - } - } else { - ignoreSelect = true; - int /*long*/ children = OS.gtk_container_get_children (listHandle); - int /*long*/ item = OS.g_list_nth_data (children, index); - int /*long*/ label = OS.gtk_bin_get_child (item); - OS.gtk_label_set_text (label, buffer); - OS.g_list_free (children); - ignoreSelect = false; - } -} - -/** - * Sets the receiver's list to be the given array of items. - * - * @param items the array of items - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the items array is null</li> - * <li>ERROR_INVALID_ARGUMENT - if an item in the items array 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 setItems (String [] items) { - checkWidget(); - if (items == null) error (SWT.ERROR_NULL_ARGUMENT); - for (int i=0; i<items.length; i++) { - if (items [i] == null) error (SWT.ERROR_INVALID_ARGUMENT); - } - int count = this.items.length; - this.items = new String [items.length]; - System.arraycopy (items, 0, this.items, 0, items.length); - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - clearText (); - for (int i = count - 1; i >= 0; i--) { - OS.gtk_combo_box_remove_text (handle, i); - } - for (int i = 0; i < items.length; i++) { - String string = items [i]; - byte [] buffer = Converter.wcsToMbcs (null, string, true); - OS.gtk_combo_box_insert_text (handle, i, buffer); - if ((style & SWT.RIGHT_TO_LEFT) != 0 && popupHandle != 0) { - OS.gtk_container_forall (popupHandle, display.setDirectionProc, OS.GTK_TEXT_DIR_RTL); - } - } - } else { - lockText = ignoreSelect = true; - OS.gtk_list_clear_items (listHandle, 0, -1); - int /*long*/ font = getFontDescription (); - GdkColor color = getForegroundColor (); - int direction = OS.gtk_widget_get_direction (handle); - int i = 0; - while (i < items.length) { - String string = items [i]; - byte [] buffer = Converter.wcsToMbcs (null, string, true); - int /*long*/ item = OS.gtk_list_item_new_with_label (buffer); - int /*long*/ label = OS.gtk_bin_get_child (item); - setForegroundColor (label, color); - OS.gtk_widget_modify_font (label, font); - OS.gtk_widget_set_direction (label, direction); - OS.gtk_container_add (listHandle, item); - OS.gtk_widget_show (item); - i++; - } - lockText = ignoreSelect = false; - OS.gtk_entry_set_text (entryHandle, new byte[1]); - } -} - -/** - * Marks the receiver's list as visible if the argument is <code>true</code>, - * and marks it invisible otherwise. - * <p> - * If one of the receiver's ancestors is not visible or some - * other condition makes the receiver not visible, marking - * it visible may not actually cause it to be displayed. - * </p> - * - * @param visible the new visibility 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> - * - * @since 3.4 - */ -public void setListVisible (boolean visible) { - checkWidget (); - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - if (visible) { - OS.gtk_combo_box_popup (handle); - } else { - OS.gtk_combo_box_popdown (handle); - } - } -} - -void setOrientation() { - super.setOrientation(); - if ((style & SWT.RIGHT_TO_LEFT) != 0) { - if (listHandle != 0) OS.gtk_widget_set_direction (listHandle, OS.GTK_TEXT_DIR_RTL); - if (entryHandle != 0) OS.gtk_widget_set_direction (entryHandle, OS.GTK_TEXT_DIR_RTL); - if (cellHandle != 0) OS.gtk_widget_set_direction (cellHandle, OS.GTK_TEXT_DIR_RTL); - } -} - -/** - * Sets the orientation of the receiver, which must be one - * of the constants <code>SWT.LEFT_TO_RIGHT</code> or <code>SWT.RIGHT_TO_LEFT</code>. - * <p> - * - * @param orientation new orientation style - * - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @since 2.1.2 - */ -public void setOrientation (int orientation) { - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - checkWidget(); - int flags = SWT.RIGHT_TO_LEFT | SWT.LEFT_TO_RIGHT; - if ((orientation & flags) == 0 || (orientation & flags) == flags) return; - style &= ~flags; - style |= orientation & flags; - int dir = (orientation & SWT.RIGHT_TO_LEFT) != 0 ? OS.GTK_TEXT_DIR_RTL : OS.GTK_TEXT_DIR_LTR; - OS.gtk_widget_set_direction (fixedHandle, dir); - OS.gtk_widget_set_direction (handle, dir); - if (entryHandle != 0) OS.gtk_widget_set_direction (entryHandle, dir); - if (listHandle != 0) { - OS.gtk_widget_set_direction (listHandle, dir); - int /*long*/ itemsList = OS.gtk_container_get_children (listHandle); - if (itemsList != 0) { - int count = OS.g_list_length (itemsList); - for (int i=count - 1; i>=0; i--) { - int /*long*/ widget = OS.gtk_bin_get_child (OS.g_list_nth_data (itemsList, i)); - OS.gtk_widget_set_direction (widget, dir); - } - OS.g_list_free (itemsList); - } - } - if (cellHandle != 0) OS.gtk_widget_set_direction (cellHandle, dir); - if (popupHandle != 0) OS.gtk_container_forall (popupHandle, display.setDirectionProc, dir); - } -} - -/** - * Sets the selection in the receiver's text field to the - * range specified by the argument whose x coordinate is the - * start of the selection and whose y coordinate is the end - * of the selection. - * - * @param selection a point representing the new selection start and end - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the point is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setSelection (Point selection) { - checkWidget(); - if (selection == null) error (SWT.ERROR_NULL_ARGUMENT); - if ((style & SWT.READ_ONLY) != 0) return; - if (entryHandle != 0) { - OS.gtk_editable_set_position (entryHandle, selection.x); - OS.gtk_editable_select_region (entryHandle, selection.x, selection.y); - } -} - -/** - * Sets the contents of the receiver's text field to the - * given string. - * <p> - * This call is ignored when the receiver is read only and - * the given string is not in the receiver's list. - * </p> - * <p> - * Note: The text field in a <code>Combo</code> is typically - * only capable of displaying a single line of text. Thus, - * setting the text to a string containing line breaks or - * other special characters will probably cause it to - * display incorrectly. - * </p> - * - * @param string the new text - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the string is null</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - */ -public void setText (String string) { - checkWidget(); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - if ((style & SWT.READ_ONLY) != 0) { - int index = indexOf (string); - if (index == -1) return; - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - OS.gtk_combo_box_set_active (handle, index); - OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - /* - * Feature in GTK. Read Only combo boxes do not get a chance to send out a - * Modify event in the gtk_changed callback. The fix is to send a Modify event - * here. - */ - sendEvent (SWT.Modify); - return; - } - } - /* - * Feature in gtk. When text is set in gtk, separate events are fired for the deletion and - * insertion of the text. This is not wrong, but is inconsistent with other platforms. The - * fix is to block the firing of these events and fire them ourselves in a consistent manner. - */ - if (hooks (SWT.Verify) || filters (SWT.Verify)) { - int /*long*/ ptr = OS.gtk_entry_get_text (entryHandle); - string = verifyText (string, 0, (int)/*64*/OS.g_utf8_strlen (ptr, -1)); - if (string == null) return; - } - byte [] buffer = Converter.wcsToMbcs (null, string, true); - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - } - OS.g_signal_handlers_block_matched (entryHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - OS.g_signal_handlers_block_matched (entryHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_TEXT); - OS.g_signal_handlers_block_matched (entryHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); - OS.gtk_entry_set_text (entryHandle, buffer); - if (OS.GTK_VERSION >= OS.VERSION (2, 4, 0)) { - OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - } - OS.g_signal_handlers_unblock_matched (entryHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - OS.g_signal_handlers_unblock_matched (entryHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, DELETE_TEXT); - OS.g_signal_handlers_unblock_matched (entryHandle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, INSERT_TEXT); - sendEvent (SWT.Modify); -} - -/** - * 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(Combo.LIMIT)</code>. - * Specifying a limit value larger than <code>Combo.LIMIT</code> sets the - * receiver's limit to <code>Combo.LIMIT</code>. - * </p> - * @param limit new text limit - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_CANNOT_BE_ZERO - if the limit is zero</li> - * </ul> - * @exception SWTException <ul> - * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> - * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> - * </ul> - * - * @see #LIMIT - */ -public void setTextLimit (int limit) { - checkWidget(); - if (limit == 0) error (SWT.ERROR_CANNOT_BE_ZERO); - if (entryHandle != 0) OS.gtk_entry_set_max_length (entryHandle, limit); -} - -void setToolTipText (Shell shell, String newString) { - if (entryHandle != 0) shell.setToolTipText (entryHandle, newString); - if (buttonHandle != 0) shell.setToolTipText (buttonHandle, newString); -} - -/** - * Sets the number of items that are visible in the drop - * down portion of the receiver's list. - * <p> - * Note: This operation is a hint and is not supported on - * platforms that do not have this concept. - * </p> - * - * @param count the new number of items to be visible - * - * @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 3.0 - */ -public void setVisibleItemCount (int count) { - checkWidget (); - if (count < 0) return; - visibleCount = count; -} - -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); - } - /* - * 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; -} - -} |