| package org.eclipse.swt.widgets; |
| |
| /* |
| * Copyright (c) 2000, 2002 IBM Corp. All rights reserved. |
| * This file is made available under the terms of the Common Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/cpl-v10.html |
| */ |
| |
| 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 represent a selectable user interface |
| * object that displays a list of strings and issues notificiation |
| * when a string selected. A list may be single or multi select. |
| * <p> |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>SINGLE, MULTI</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Selection, DefaultSelection</dd> |
| * </dl> |
| * <p> |
| * Note: Only one of SINGLE and MULTI may be specified. |
| * </p><p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| */ |
| public class List extends Scrollable { |
| int modelHandle; |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * and a style value describing its behavior and appearance. |
| * <p> |
| * The style value is either one of the style constants defined in |
| * class <code>SWT</code> which is applicable to instances of this |
| * class, or must be built by <em>bitwise OR</em>'ing together |
| * (that is, using the <code>int</code> "|" operator) two or more |
| * of those <code>SWT</code> style constants. The class description |
| * lists the style constants that are applicable to the class. |
| * Style bits are also inherited from superclasses. |
| * </p> |
| * |
| * @param parent a composite control which will be the parent of the new instance (cannot be null) |
| * @param style the style of control to construct |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| * |
| * @see SWT#SINGLE |
| * @see SWT#MULTI |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public List (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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_ADDED - if the operation fails because of an operating system failure</li> |
| * </ul> |
| * |
| * @see #add(String,int) |
| */ |
| public void add (String string) { |
| checkWidget(); |
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT); |
| byte [] buffer = Converter.wcsToMbcs (null, string, true); |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| if (iter == 0) error (SWT.ERROR_ITEM_NOT_ADDED); |
| OS.gtk_list_store_append (modelHandle, iter); |
| OS.gtk_list_store_set (modelHandle, iter, 0, buffer, -1); |
| OS.g_free (iter); |
| } |
| |
| /** |
| * 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_ADDED - if the operation fails because of an operating system failure</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 <= OS.gtk_tree_model_iter_n_children (modelHandle, 0))) { |
| error (SWT.ERROR_INVALID_RANGE); |
| } |
| byte [] buffer = Converter.wcsToMbcs (null, string, true); |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| if (iter == 0) error (SWT.ERROR_ITEM_NOT_ADDED); |
| OS.gtk_list_store_insert (modelHandle, iter, index); |
| OS.gtk_list_store_set (modelHandle, iter, 0, buffer, -1); |
| OS.g_free (iter); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the receiver's selection changes, by sending |
| * it one of the messages defined in the <code>SelectionListener</code> |
| * interface. |
| * <p> |
| * <code>widgetSelected</code> is called when the selection changes. |
| * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked. |
| * </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); |
| } |
| |
| static int checkStyle (int style) { |
| return checkBits (style, SWT.SINGLE, SWT.MULTI, 0, 0, 0, 0); |
| } |
| |
| void createHandle (int index) { |
| state |= HANDLE; |
| fixedHandle = OS.gtk_fixed_new (); |
| if (fixedHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.gtk_fixed_set_has_window (fixedHandle, true); |
| scrolledHandle = OS.gtk_scrolled_window_new (0, 0); |
| if (scrolledHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| /* |
| * Columns: |
| * 0 - text |
| */ |
| int [] types = new int [] {OS.G_TYPE_STRING ()}; |
| modelHandle = OS.gtk_list_store_newv (types.length, types); |
| if (modelHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| handle = OS.gtk_tree_view_new_with_model (modelHandle); |
| if (handle == 0) error (SWT.ERROR_NO_HANDLES); |
| int textRenderer = OS.gtk_cell_renderer_text_new (); |
| if (textRenderer == 0) error (SWT.ERROR_NO_HANDLES); |
| int columnHandle = OS.gtk_tree_view_column_new (); |
| if (columnHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.gtk_tree_view_column_pack_start (columnHandle, textRenderer, true); |
| OS.gtk_tree_view_column_add_attribute (columnHandle, textRenderer, "text", 0); |
| OS.gtk_tree_view_insert_column (handle, columnHandle, index); |
| int parentHandle = parent.parentingHandle (); |
| OS.gtk_container_add (parentHandle, fixedHandle); |
| OS.gtk_container_add (fixedHandle, scrolledHandle); |
| OS.gtk_container_add (scrolledHandle, handle); |
| OS.gtk_widget_show (fixedHandle); |
| OS.gtk_widget_show (scrolledHandle); |
| OS.gtk_widget_show (handle); |
| |
| int mode = (style & SWT.MULTI) != 0 ? OS.GTK_SELECTION_MULTIPLE : OS.GTK_SELECTION_BROWSE; |
| int selectionHandle = OS.gtk_tree_view_get_selection (handle); |
| OS.gtk_tree_selection_set_mode (selectionHandle, mode); |
| OS.gtk_tree_view_set_headers_visible (handle, false); |
| int hsp = (style & SWT.H_SCROLL) != 0 ? OS.GTK_POLICY_AUTOMATIC : OS.GTK_POLICY_NEVER; |
| int vsp = (style & SWT.V_SCROLL) != 0 ? OS.GTK_POLICY_AUTOMATIC : OS.GTK_POLICY_NEVER; |
| OS.gtk_scrolled_window_set_policy (scrolledHandle, hsp, vsp); |
| if ((style & SWT.BORDER) != 0) OS.gtk_scrolled_window_set_shadow_type (scrolledHandle, OS.GTK_SHADOW_ETCHED_IN); |
| } |
| |
| public Point computeSize (int wHint, int hHint, boolean changed) { |
| checkWidget (); |
| Point size = computeNativeSize (handle, wHint, hHint, changed); |
| Rectangle trim = computeTrim (0, 0, size.x, size.y); |
| size.x = trim.width; |
| size.y = trim.height; |
| return size; |
| } |
| |
| GdkColor defaultBackground () { |
| Display display = getDisplay (); |
| return display.COLOR_LIST_BACKGROUND; |
| } |
| |
| GdkColor defaultForeground () { |
| Display display = getDisplay (); |
| return display.COLOR_LIST_FOREGROUND; |
| } |
| |
| void deregister() { |
| super.deregister (); |
| WidgetTable.remove (OS.gtk_tree_view_get_selection (handle)); |
| } |
| |
| /** |
| * Deselects the item at the given zero-relative index in the receiver. |
| * 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 (!(0 <= index && index < OS.gtk_tree_model_iter_n_children (modelHandle, 0))) return; |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); |
| OS.gtk_tree_selection_unselect_iter (selection, iter); |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_free (iter); |
| } |
| |
| /** |
| * Deselects the items at the given zero-relative indices in the receiver. |
| * If the item at the given zero-relative index in the receiver |
| * is selected, it is deselected. If the item at the index |
| * was not selected, it remains deselected. The range of the |
| * indices is inclusive. Indices that are out of range are ignored. |
| * |
| * @param start the start index of the items to deselect |
| * @param end the end index of the items 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 start, int end) { |
| checkWidget(); |
| if (start < 0 && end < 0) return; |
| int count = OS.gtk_tree_model_iter_n_children (modelHandle, 0); |
| if (start >= count && end >= count) return; |
| start = Math.min (count - 1, Math.max (0, start)); |
| end = Math.min (count - 1, Math.max (0, end)); |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| for (int index=start; index<=end; index++) { |
| OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); |
| OS.gtk_tree_selection_unselect_iter (selection, iter); |
| } |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_free (iter); |
| } |
| |
| /** |
| * Deselects the items at the given zero-relative indices in the receiver. |
| * If the item at the given zero-relative index in the receiver |
| * is selected, it is deselected. If the item at the index |
| * was not selected, it remains deselected. Indices that are out |
| * of range and duplicate indices are ignored. |
| * |
| * @param indices the array of indices for the items to deselect |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void deselect (int [] indices) { |
| checkWidget(); |
| if (indices == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| int count = OS.gtk_tree_model_iter_n_children (modelHandle, 0); |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| for (int i=0; i<indices.length; i++) { |
| int index = indices [i]; |
| if (index < 0 || index > count) continue; |
| OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); |
| OS.gtk_tree_selection_unselect_iter (selection, iter); |
| } |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_free (iter); |
| } |
| |
| /** |
| * Deselects all selected items in the receiver. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void deselectAll () { |
| checkWidget(); |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.gtk_tree_selection_unselect_all (selection); |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| } |
| |
| GdkColor getBackgroundColor () { |
| return getBaseColor (); |
| } |
| |
| /** |
| * Returns the zero-relative index of the item which is currently |
| * has the focus in the receiver, or -1 if no item is has focus. |
| * |
| * @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 getFocusIndex () { |
| checkWidget(); |
| int [] path = new int [1]; |
| OS.gtk_tree_view_get_cursor (handle, path, null); |
| if (path [0] == 0) return -1; |
| int indices = OS.gtk_tree_path_get_indices (path [0]); |
| int [] index = new int []{-1}; |
| if (indices != 0) OS.memmove (index, indices, 4); |
| OS.gtk_tree_path_free (path [0]); |
| return index [0]; |
| } |
| |
| GdkColor getForegroundColor () { |
| return getTextColor (); |
| } |
| |
| /** |
| * Returns the item at the given, zero-relative index in the |
| * receiver. 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_ITEM - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public String getItem (int index) { |
| checkWidget(); |
| if (!(0 <= index && index < OS.gtk_tree_model_iter_n_children (modelHandle, 0))) { |
| error (SWT.ERROR_INVALID_RANGE); |
| } |
| int [] ptr = new int [1]; |
| int 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) return null; |
| int length = OS.strlen (ptr [0]); |
| byte[] buffer2 = new byte [length]; |
| OS.memmove (buffer2, ptr [0], length); |
| OS.g_free (ptr [0]); |
| return new String (Converter.mbcsToWcs (null, buffer2)); |
| } |
| |
| /** |
| * Returns the number of items contained in the receiver. |
| * |
| * @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> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_COUNT - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public int getItemCount () { |
| checkWidget(); |
| return OS.gtk_tree_model_iter_n_children (modelHandle, 0); |
| } |
| |
| /** |
| * Returns the height of the area which would be used to |
| * display <em>one</em> of the items in the tree. |
| * |
| * @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> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_ITEM_HEIGHT - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public int getItemHeight () { |
| checkWidget(); |
| int column = OS.gtk_tree_view_get_column (handle, 0); |
| int list = OS.gtk_tree_view_column_get_cell_renderers (column); |
| int renderer = OS.g_list_nth_data (list, 0); |
| OS.g_list_free (list); |
| int [] w = new int [1], h = new int [1]; |
| OS.gtk_cell_renderer_get_size (renderer, handle, null, null, null, w, h); |
| return h [0]; |
| } |
| |
| /** |
| * Returns an array of <code>String</code>s which are the items |
| * in the receiver. |
| * <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> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_ITEM - if the operation fails because of an operating system failure while getting an item</li> |
| * <li>ERROR_CANNOT_GET_COUNT - if the operation fails because of an operating system failure while getting the item count</li> |
| * </ul> |
| */ |
| public String [] getItems () { |
| checkWidget(); |
| int count = OS.gtk_tree_model_iter_n_children (modelHandle, 0); |
| int [] ptr = new int [1]; |
| String [] result = new String [count]; |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| for (int index=0; index<count; index++) { |
| OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); |
| OS.gtk_tree_model_get (modelHandle, iter, 0, ptr, -1); |
| if (ptr [0] != 0) { |
| int length = OS.strlen (ptr [0]); |
| byte[] buffer = new byte [length]; |
| OS.memmove (buffer, ptr [0], length); |
| OS.g_free (ptr [0]); |
| result [index] = new String (Converter.mbcsToWcs (null, buffer)); |
| } |
| } |
| OS.g_free (iter); |
| return result; |
| } |
| |
| /** |
| * Returns an array of <code>String</code>s that are currently |
| * selected in the receiver. An empty array indicates that no |
| * items are selected. |
| * <p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its selection, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * @return an array representing the selection |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_SELECTION - if the operation fails because of an operating system failure while getting the selection</li> |
| * <li>ERROR_CANNOT_GET_ITEM - if the operation fails because of an operating system failure while getting an item</li> |
| * </ul> |
| */ |
| public String [] getSelection () { |
| checkWidget(); |
| int [] indices = getSelectionIndices (); |
| String [] result = new String [indices.length]; |
| for (int i=0; i<indices.length; i++) { |
| result [i] = getItem (indices [i]); |
| } |
| return result; |
| } |
| |
| /** |
| * Returns the number of selected items contained in the receiver. |
| * |
| * @return the number of selected 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_COUNT - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public int getSelectionCount () { |
| checkWidget(); |
| Display display = getDisplay (); |
| display.treeSelectionLength = 0; |
| display.treeSelection = null; |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| OS.gtk_tree_selection_selected_foreach (selection, display.treeSelectionProc, handle); |
| return display.treeSelectionLength; |
| } |
| |
| /** |
| * Returns the zero-relative index of the item which is currently |
| * selected in the receiver, 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_SELECTION - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public int getSelectionIndex () { |
| checkWidget(); |
| int itemCount = OS.gtk_tree_model_iter_n_children (modelHandle, 0); |
| Display display = getDisplay (); |
| display.treeSelectionLength = 0; |
| display.treeSelection = new int [itemCount]; |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| OS.gtk_tree_selection_selected_foreach (selection, display.treeSelectionProc, handle); |
| if (display.treeSelectionLength == 0) return -1; |
| return display.treeSelection [0]; |
| } |
| |
| /** |
| * Returns the zero-relative indices of the items which are currently |
| * selected in the receiver. The array is empty if no items are selected. |
| * <p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its selection, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * @return the array of indices of the selected 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_SELECTION - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public int [] getSelectionIndices () { |
| checkWidget(); |
| int itemCount = OS.gtk_tree_model_iter_n_children (modelHandle, 0); |
| Display display = getDisplay (); |
| display.treeSelectionLength = 0; |
| display.treeSelection = new int [itemCount]; |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| OS.gtk_tree_selection_selected_foreach (selection, display.treeSelectionProc, handle); |
| if (display.treeSelectionLength == display.treeSelection.length) return display.treeSelection; |
| int [] result = new int [display.treeSelectionLength]; |
| System.arraycopy (display.treeSelection, 0, result, 0, display.treeSelectionLength); |
| return result; |
| } |
| |
| /** |
| * Returns the zero-relative index of the item which is currently |
| * at the top of the receiver. This index can change when items are |
| * scrolled or new items are added or removed. |
| * |
| * @return the index of the top item |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getTopIndex () { |
| checkWidget(); |
| int [] path = new int [1]; |
| if (!OS.gtk_tree_view_get_path_at_pos (handle, 1, 1, path, null, null, null)) return 0; |
| if (path [0] == 0) return 0; |
| int indices = OS.gtk_tree_path_get_indices (path[0]); |
| int[] index = new int [1]; |
| if (indices != 0) OS.memmove (index, indices, 4); |
| OS.gtk_tree_path_free (path [0]); |
| return index [0]; |
| } |
| |
| int gtk_changed (int widget) { |
| postEvent (SWT.Selection); |
| return 0; |
| } |
| |
| int gtk_button_press_event (int widget, int event) { |
| int result = super.gtk_button_press_event (widget, event); |
| if (result != 0) return result; |
| |
| /* |
| * Note on GTK. When multiple items are already selected, the default handler |
| * toggles the selection state of the item and clears any former selection. |
| * This is not the desired behaviour when bringing up a popup menu. The |
| * workaround is to detect that case and not run the default handler when the |
| * item is already part of the current selection. |
| */ |
| if (menu != null && (style & SWT.MULTI) != 0) { |
| GdkEventButton gdkEvent = new GdkEventButton (); |
| OS.memmove (gdkEvent, event, GdkEventButton.sizeof); |
| int button = gdkEvent.button; |
| if (button == 3 && gdkEvent.type == OS.GDK_BUTTON_PRESS) { |
| int [] path = new int [1]; |
| if (OS.gtk_tree_view_get_path_at_pos (handle, (int)gdkEvent.x, (int)gdkEvent.y, path, null, null, null)) { |
| if (path [0] != 0) { |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| if (OS.gtk_tree_selection_path_is_selected (selection, path [0])) result = 1; |
| OS.gtk_tree_path_free (path [0]); |
| } |
| } |
| } |
| } |
| return result; |
| } |
| |
| int gtk_key_press_event (int widget, int event) { |
| int result = super.gtk_key_press_event (widget, event); |
| if (result != 0) return result; |
| |
| /* |
| * Feature in GTK. When an item is default selected using |
| * the return key, GTK does not issue notification. The fix is |
| * to issue this notification when the return key is pressed. |
| */ |
| GdkEventKey keyEvent = new GdkEventKey (); |
| OS.memmove (keyEvent, event, GdkEventKey.sizeof); |
| int key = keyEvent.keyval; |
| switch (key) { |
| case OS.GDK_Return: |
| case OS.GDK_KP_Enter: { |
| postEvent (SWT.DefaultSelection); |
| break; |
| } |
| } |
| |
| return result; |
| } |
| |
| int gtk_row_activated (int tree, int path, int column) { |
| postEvent (SWT.DefaultSelection); |
| return 0; |
| } |
| |
| void hookEvents () { |
| super.hookEvents(); |
| Display display = getDisplay (); |
| int selection = OS.gtk_tree_view_get_selection(handle); |
| OS.g_signal_connect (selection, OS.changed, display.windowProc2, CHANGED); |
| OS.g_signal_connect (handle, OS.row_activated, display.windowProc4, ROW_ACTIVATED); |
| } |
| |
| /** |
| * Gets the index of an item. |
| * <p> |
| * The list is searched starting at 0 until an |
| * item is found that is equal to the search item. |
| * If no item is found, -1 is returned. Indexing |
| * is zero based. |
| * |
| * @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 |
| * @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> |
| * @exception SWTError <ul> |
| * <li>ERROR_CANNOT_GET_COUNT - if the operation fails because of an operating system failure while getting the item count</li> |
| * <li>ERROR_CANNOT_GET_ITEM - if the operation fails because of an operating system failure while getting an item</li> |
| * </ul> |
| */ |
| public int indexOf (String string, int start) { |
| checkWidget(); |
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT); |
| String [] items = getItems (); |
| for (int i=start; i<items.length; i++) { |
| if (items [i].equals (string)) return i; |
| } |
| return -1; |
| } |
| |
| /** |
| * Returns <code>true</code> if the item is selected, |
| * and <code>false</code> otherwise. Indices out of |
| * range are ignored. |
| * |
| * @param index the index of the item |
| * @return the visibility state of the item at the index |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public boolean isSelected (int index) { |
| checkWidget(); |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| byte [] buffer = Converter.wcsToMbcs (null, Integer.toString (index), true); |
| int path = OS.gtk_tree_path_new_from_string (buffer); |
| boolean answer = OS.gtk_tree_selection_path_is_selected (selection, path); |
| OS.gtk_tree_path_free (path); |
| return answer; |
| } |
| |
| int paintWindow () { |
| OS.gtk_widget_realize (handle); |
| return OS.gtk_tree_view_get_bin_window (handle); |
| } |
| |
| void register () { |
| super.register (); |
| WidgetTable.put (OS.gtk_tree_view_get_selection (handle), this); |
| } |
| |
| void releaseWidget () { |
| super.releaseWidget (); |
| if (modelHandle != 0) OS.g_object_unref (modelHandle); |
| modelHandle = 0; |
| } |
| |
| /** |
| * Removes the item from the receiver 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_REMOVED - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public void remove (int index) { |
| checkWidget(); |
| if (!(0 <= index && index < OS.gtk_tree_model_iter_n_children (modelHandle, 0))) { |
| error (SWT.ERROR_INVALID_RANGE); |
| } |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.gtk_list_store_remove (modelHandle, iter); |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_free (iter); |
| } |
| |
| /** |
| * Removes the items from the receiver 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_REMOVED - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public void remove (int start, int end) { |
| checkWidget(); |
| if (start > end) return; |
| if (start < 0) error(SWT.ERROR_INVALID_RANGE); |
| int count = OS.gtk_tree_model_iter_n_children (modelHandle, 0); |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| for (int index=Math.min(end,count-1); index>=start; index--) { |
| OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); |
| OS.gtk_list_store_remove (modelHandle, iter); |
| } |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_free (iter); |
| if (count <= end) { |
| error (SWT.ERROR_INVALID_RANGE); |
| } |
| } |
| |
| /** |
| * 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_REMOVED - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public void remove (String string) { |
| checkWidget(); |
| int index = indexOf (string, 0); |
| if (index == -1) error (SWT.ERROR_INVALID_ARGUMENT); |
| remove (index); |
| } |
| |
| /** |
| * Removes the items from the receiver at the given |
| * zero-relative indices. |
| * |
| * @param indices the array of indices of the items |
| * |
| * @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 indices 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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_REMOVED - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public void remove (int [] indices) { |
| checkWidget(); |
| if (indices == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int [] newIndices = new int [indices.length]; |
| System.arraycopy (indices, 0, newIndices, 0, indices.length); |
| sort (newIndices); |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| int last = -1; |
| int itemCount = getItemCount() ; |
| for (int i=0; i<newIndices.length; i++) { |
| int index = newIndices [i]; |
| if (index < 0 || index > itemCount -1) { |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_free (iter); |
| error(SWT.ERROR_INVALID_RANGE); |
| } |
| if (index != last || i == 0) { |
| OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); |
| OS.gtk_list_store_remove (modelHandle, iter); |
| last = index; |
| itemCount--; |
| } |
| } |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_free (iter); |
| } |
| |
| /** |
| * Removes all of the items from the receiver. |
| * <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 selection = OS.gtk_tree_view_get_selection (handle); |
| OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.gtk_list_store_clear (modelHandle); |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the receiver's selection changes. |
| * |
| * @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); |
| } |
| |
| /** |
| * 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 (!(0 <= index && index < OS.gtk_tree_model_iter_n_children (modelHandle, 0))) return; |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); |
| if ((style & SWT.SINGLE) != 0) { |
| int path = OS.gtk_tree_model_get_path (modelHandle, iter); |
| OS.gtk_tree_view_set_cursor (handle, path, 0, false); |
| OS.gtk_tree_path_free (path); |
| } else { |
| OS.gtk_tree_selection_select_iter (selection, iter); |
| } |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_free (iter); |
| } |
| |
| /** |
| * Selects the items at the given zero-relative indices in the receiver. |
| * If the item at the index was already selected, it remains |
| * selected. The range of the indices is inclusive. Indices that are |
| * out of range are ignored and no items will be selected if start is |
| * greater than end. |
| * |
| * @param start the start of the range |
| * @param end the end of the range |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void select (int start, int end) { |
| checkWidget(); |
| if (start < 0 && end < 0) return; |
| int count = OS.gtk_tree_model_iter_n_children (modelHandle, 0); |
| if (start >= count && end >= count) return; |
| start = Math.min (count - 1, Math.max (0, start)); |
| end = Math.min (count - 1, Math.max (0, end)); |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| for (int index=start; index<=end; index++) { |
| OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); |
| if ((style & SWT.SINGLE) != 0) { |
| int path = OS.gtk_tree_model_get_path (modelHandle, iter); |
| OS.gtk_tree_view_set_cursor (handle, path, 0, false); |
| OS.gtk_tree_path_free (path); |
| } else { |
| OS.gtk_tree_selection_select_iter (selection, iter); |
| } |
| } |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_free (iter); |
| } |
| |
| /** |
| * Selects the items at the given zero-relative indices in the receiver. |
| * If the item at the given zero-relative index in the receiver |
| * is not selected, it is selected. If the item at the index |
| * was selected, it remains selected. Indices that are out |
| * of range and duplicate indices are ignored. |
| * |
| * @param indices the array of indices for the items to select |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void select (int [] indices) { |
| checkWidget(); |
| if (indices == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| int count = OS.gtk_tree_model_iter_n_children (modelHandle, 0); |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| for (int i=0; i<indices.length; i++) { |
| int index = indices [i]; |
| if (index < 0 || index > count) continue; |
| OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); |
| if ((style & SWT.SINGLE) != 0) { |
| int path = OS.gtk_tree_model_get_path (modelHandle, iter); |
| OS.gtk_tree_view_set_cursor (handle, path, 0, false); |
| OS.gtk_tree_path_free (path); |
| break; |
| } else { |
| OS.gtk_tree_selection_select_iter (selection, iter); |
| } |
| } |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.g_free (iter); |
| } |
| |
| /** |
| * Selects all the items in the receiver. |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void selectAll () { |
| checkWidget(); |
| if ((style & SWT.SINGLE) != 0) return; |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.gtk_tree_selection_select_all (selection); |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| } |
| |
| void setBackgroundColor (GdkColor color) { |
| super.setBackgroundColor (color); |
| OS.gtk_widget_modify_base (handle, 0, color); |
| } |
| |
| boolean setBounds (int x, int y, int width, int height, boolean move, boolean resize) { |
| boolean result = super.setBounds (x, y, width, height, move, resize); |
| /* |
| * Bug on GTK. The tree view sometimes does not get a paint |
| * event or resizes to a one pixel square when resized in a new |
| * shell that is not visible after any event loop has been run. The |
| * problem is intermittent. It doesn't seem to happen the first time |
| * a new shell is created. The fix is to ensure the tree view is realized |
| * after it has been resized. |
| */ |
| OS.gtk_widget_realize (handle); |
| return result; |
| } |
| |
| void setForegroundColor (GdkColor color) { |
| super.setForegroundColor (color); |
| OS.gtk_widget_modify_text (handle, 0, color); |
| } |
| |
| /** |
| * Sets the text of the item in the receiver's list at the given |
| * zero-relative index to the string argument. This is equivalent |
| * to <code>remove</code>'ing the old item at the index, and then |
| * <code>add</code>'ing the new item at that index. |
| * |
| * @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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_REMOVED - if the remove operation fails because of an operating system failure</li> |
| * <li>ERROR_ITEM_NOT_ADDED - if the add operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public void setItem (int index, String string) { |
| checkWidget(); |
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (!(0 <= index && index < OS.gtk_tree_model_iter_n_children (modelHandle, 0))) { |
| error (SWT.ERROR_INVALID_RANGE); |
| } |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); |
| byte [] buffer = Converter.wcsToMbcs (null, string, true); |
| OS.gtk_list_store_set (modelHandle, iter, 0, buffer, -1); |
| OS.g_free (iter); |
| } |
| |
| /** |
| * Sets the receiver's items 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> |
| * </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> |
| * @exception SWTError <ul> |
| * <li>ERROR_ITEM_NOT_ADDED - if the operation fails because of an operating system failure</li> |
| * </ul> |
| */ |
| public void setItems (String [] items) { |
| checkWidget(); |
| if (items == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int selection = OS.gtk_tree_view_get_selection (handle); |
| OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.gtk_list_store_clear (modelHandle); |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| if (iter == 0) error (SWT.ERROR_ITEM_NOT_ADDED); |
| for (int i=0; i<items.length; i++) { |
| String string = items [i]; |
| if (string == null) { |
| OS.g_free (iter); |
| error (SWT.ERROR_ITEM_NOT_ADDED); |
| } |
| byte [] buffer = Converter.wcsToMbcs (null, string, true); |
| OS.gtk_list_store_append (modelHandle, iter); |
| OS.gtk_list_store_set (modelHandle, iter, 0, buffer, -1); |
| } |
| OS.g_free (iter); |
| } |
| |
| /** |
| * Selects the item at the given zero-relative index in the receiver. |
| * If the item at the index was already selected, it remains selected. |
| * The current selected is first cleared, then the new items are 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> |
| * @see List#deselectAll() |
| * @see List#select(int) |
| */ |
| public void setSelection (int index) { |
| checkWidget(); |
| if ((style & SWT.MULTI) != 0) deselectAll (); |
| select (index); |
| showSelection (); |
| } |
| |
| /** |
| * Selects the items at the given zero-relative indices in the receiver. |
| * The current selection is first cleared, then the new items are selected. |
| * Indices that are out of range are ignored and no items will be selected |
| * if start is greater than end. |
| * |
| * @param start the start index of the items to select |
| * @param end the end index of the items 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> |
| * |
| * @see Table#deselectAll() |
| * @see Table#select(int,int) |
| */ |
| public void setSelection (int start, int end) { |
| checkWidget(); |
| if ((style & SWT.MULTI) != 0) deselectAll (); |
| select (start, end); |
| showSelection (); |
| } |
| |
| /** |
| * Selects the items at the given zero-relative indices in the receiver. |
| * The current selection is first cleared, then the new items are selected. |
| * |
| * @param indices the indices of the items to select |
| * |
| * @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 List#deselectAll() |
| * @see List#select(int[]) |
| */ |
| public void setSelection(int[] indices) { |
| checkWidget(); |
| if (indices == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if ((style & SWT.MULTI) != 0) deselectAll (); |
| select (indices); |
| showSelection (); |
| } |
| |
| /** |
| * Sets the receiver's selection to be the given array of items. |
| * The current selected is first cleared, then the new items are |
| * selected. |
| * |
| * @param items the array of items |
| * |
| * @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 List#deselectAll() |
| * @see List#select(int) |
| */ |
| public void setSelection (String [] items) { |
| checkWidget(); |
| if (items == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if ((style & SWT.MULTI) != 0) deselectAll (); |
| for (int i=items.length-1; i>=0; --i) { |
| int index = 0; |
| String string = items [i]; |
| if (string != null) { |
| while ((index = indexOf (string, index)) != -1) { |
| select (index); |
| if (((style & SWT.SINGLE) != 0) && isSelected (index)) { |
| showSelection (); |
| return; |
| } |
| index++; |
| } |
| } |
| } |
| if ((style & SWT.SINGLE) != 0) deselectAll (); |
| showSelection (); |
| } |
| |
| /** |
| * Sets the zero-relative index of the item which is currently |
| * at the top of the receiver. This index can change when items |
| * are scrolled or new items are added and removed. |
| * |
| * @param index the index of the top item |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setTopIndex (int index) { |
| checkWidget(); |
| if (!(0 <= index && index < OS.gtk_tree_model_iter_n_children (modelHandle, 0))) return; |
| // FIXME - For some reason, sometimes the tree scrolls to the wrong place |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); |
| int path = OS.gtk_tree_model_get_path (modelHandle, iter); |
| OS.gtk_tree_view_scroll_to_cell (handle, path, 0, true, 0, 0); |
| OS.gtk_tree_path_free (path); |
| OS.g_free (iter); |
| } |
| |
| /** |
| * Shows the selection. If the selection is already showing in the receiver, |
| * this method simply returns. Otherwise, the items are scrolled until |
| * the selection is 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> |
| */ |
| public void showSelection () { |
| checkWidget(); |
| int index = getSelectionIndex (); |
| if (index == -1) return; |
| int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); |
| int path = OS.gtk_tree_model_get_path (modelHandle, iter); |
| OS.gtk_tree_view_scroll_to_cell (handle, path, 0, true, 0, 0); |
| OS.gtk_tree_path_free (path); |
| OS.g_free (iter); |
| } |
| |
| int treeSelectionProc (int model, int path, int iter, int[] selection, int length) { |
| if (selection != null) { |
| int indices = OS.gtk_tree_path_get_indices (path); |
| if (indices != 0) { |
| int [] index = new int [1]; |
| OS.memmove (index, indices, 4); |
| selection [length] = index [0]; |
| } |
| } |
| return 0; |
| } |
| |
| } |