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author | Silenio Quarti <silenio> | 2009-07-01 14:50:54 +0000 |
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committer | Silenio Quarti <silenio> | 2009-07-01 14:50:54 +0000 |
commit | 093c579a4ffd9551acb901bba9617e7aa776989d (patch) | |
tree | 71cf23798b651ef92f188390841a8d130908fb11 /bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Combo.java | |
parent | f664d297f7bb009784868bf3fcf0b3e3bb9a646b (diff) | |
download | eclipse.platform.swt-093c579a4ffd9551acb901bba9617e7aa776989d.tar.gz eclipse.platform.swt-093c579a4ffd9551acb901bba9617e7aa776989d.tar.xz eclipse.platform.swt-093c579a4ffd9551acb901bba9617e7aa776989d.zip |
restore HEAD after accidental deletion by error in automated build script
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, 2241 insertions, 0 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 new file mode 100644 index 0000000000..6e526d3b05 --- /dev/null +++ b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Combo.java @@ -0,0 +1,2241 @@ +/******************************************************************************* + * 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; +} + +} |