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Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Tree.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Tree.java | 866 |
1 files changed, 0 insertions, 866 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Tree.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Tree.java deleted file mode 100644 index 791503d2ca..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/Tree.java +++ /dev/null @@ -1,866 +0,0 @@ -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.gtk.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.events.*; - -/** - * Instances of this class provide a selectable user interface object - * that displays a hierarchy of items and issue notificiation when an - * item in the hierarchy is selected. - * <p> - * The item children that may be added to instances of this class - * must be of type <code>TreeItem</code>. - * </p><p> - * Note that although this class is a subclass of <code>Composite</code>, - * it does not make sense to add <code>Control</code> children to it, - * or set a layout on it. - * </p><p> - * <dl> - * <dt><b>Styles:</b></dt> - * <dd>SINGLE, MULTI, CHECK</dd> - * <dt><b>Events:</b></dt> - * <dd>Selection, DefaultSelection, Collapse, Expand</dd> - * </dl> - * <p> - * Note: Only one of the styles SINGLE and MULTI may be specified. - * </p><p> - * IMPORTANT: This class is <em>not</em> intended to be subclassed. - * </p> - */ -public class Tree extends Composite { - int modelHandle, checkRenderer; - TreeItem[] items; - ImageList imageList; - -/** - * 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 SWT#CHECK - * @see Widget#checkSubclass - * @see Widget#getStyle - */ -public Tree (Composite parent, int style) { - super (parent, checkStyle (style)); -} - -static int checkStyle (int style) { - style |= SWT.H_SCROLL | SWT.V_SCROLL; - return checkBits (style, SWT.SINGLE, SWT.MULTI, 0, 0, 0, 0); -} - -/** - * 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> - * When <code>widgetSelected</code> is called, the item field of the event object is valid. - * If the reciever has <code>SWT.CHECK</code> style set and the check selection changes, - * the event object detail field contains the value <code>SWT.CHECK</code>. - * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked. - * The item field of the event object is valid for default selection, but the detail field is not used. - * </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 an item in the receiver is expanded or collapsed - * by sending it one of the messages defined in the <code>TreeListener</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 TreeListener - * @see #removeTreeListener - */ -public void addTreeListener(TreeListener listener) { - checkWidget (); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - TypedListener typedListener = new TypedListener (listener); - addListener (SWT.Expand, typedListener); - addListener (SWT.Collapse, typedListener); -} - -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; -} - -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 - * 1 - pixmap - * 2 - foreground - * 3 - background - * 4 - id - * 5 - checked (if needed) - */ - int [] types = new int [(style & SWT.CHECK) !=0 ? 6 : 5]; - types [0] = OS.G_TYPE_STRING (); - types [1] = OS.GDK_TYPE_PIXBUF (); - types [2] = OS.GDK_TYPE_COLOR (); - types [3] = OS.GDK_TYPE_COLOR (); - types [4] = OS.G_TYPE_INT (); - if ((style & SWT.CHECK) != 0) types [5] = OS.G_TYPE_BOOLEAN (); - modelHandle = OS.gtk_tree_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 columnHandle = OS.gtk_tree_view_column_new (); - if (columnHandle == 0) error (SWT.ERROR_NO_HANDLES); - if ((style & SWT.CHECK) != 0) { - checkRenderer = OS.gtk_cell_renderer_toggle_new (); - if (checkRenderer == 0) error (SWT.ERROR_NO_HANDLES); - OS.gtk_tree_view_column_pack_start (columnHandle, checkRenderer, false); - OS.gtk_tree_view_column_add_attribute (columnHandle, checkRenderer, "active", 5); - } - int pixbufRenderer = OS.gtk_cell_renderer_pixbuf_new (); - if (pixbufRenderer == 0) error (SWT.ERROR_NO_HANDLES); - OS.gtk_tree_view_column_pack_start (columnHandle, pixbufRenderer, false); - OS.gtk_tree_view_column_add_attribute (columnHandle, pixbufRenderer, "pixbuf", 1); - int textRenderer = OS.gtk_cell_renderer_text_new (); - if (textRenderer == 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_column_add_attribute (columnHandle, textRenderer, "foreground-gdk", 2); - OS.gtk_tree_view_column_add_attribute (columnHandle, textRenderer, "background-gdk", 3); - OS.gtk_tree_view_insert_column (handle, columnHandle, 0); - 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); -} - -void createItem (TreeItem item, int iter, int index) { - int id = 0; - while (id < items.length && items [id] != null) id++; - if (id == items.length) { - TreeItem [] newItems = new TreeItem [items.length + 4]; - System.arraycopy (items, 0, newItems, 0, items.length); - items = newItems; - } - item.handle = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - if (item.handle == 0) error(SWT.ERROR_NO_HANDLES); - if (index == -1) { - OS.gtk_tree_store_append (modelHandle, item.handle, iter); - } else { - OS.gtk_tree_store_insert (modelHandle, item.handle, iter, index); - } - OS.gtk_tree_store_set (modelHandle, item.handle, 4, id, -1); - items [id] = item; -} - -void createWidget (int index) { - super.createWidget (index); - items = new TreeItem [4]; -} - -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)); - if (checkRenderer != 0) WidgetTable.remove (checkRenderer); -} - -/** - * 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(); - OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - int selection = OS.gtk_tree_view_get_selection (handle); - OS.gtk_tree_selection_unselect_all (selection); - OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); -} - -void destroyItem (TreeItem item) { - int [] index = new int [1]; - releaseItems (item.getItems (), index); - releaseItem (item, index); - OS.gtk_tree_store_remove (modelHandle, item.handle); -} - -void destroyWidget () { - /* - * Bug in GTK. Sometimes GTK causes a segment fault when a tree widget is - * destroyed and it has outstanding events or idle handlers. This only happens - * on versions earlier than 2.0.5. The fix is to flush all outstanding events before - * destroying the widget. - */ - if (OS.gtk_major_version () == 2 && OS.gtk_minor_version () == 0 && OS.gtk_micro_version () < 5) { - while (OS.gtk_events_pending () != 0) OS.gtk_main_iteration (); - } - super.destroyWidget (); -} - -GdkColor getBackgroundColor () { - return getBaseColor (); -} - -TreeItem getFocusItem () { - int [] path = new int [1]; - OS.gtk_tree_view_get_cursor (handle, path, null); - if (path [0] == 0) return null; - int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - OS.gtk_tree_model_get_iter (modelHandle, iter, path [0]); - int [] index = new int [1]; - OS.gtk_tree_model_get (modelHandle, iter, 4, index, -1); - OS.g_free (iter); - OS.gtk_tree_path_free (path [0]); - return items [index [0]]; -} - -GdkColor getForegroundColor () { - return getTextColor (); -} - -/** - * Returns the item at the given point in the receiver - * or null if no such item exists. The point is in the - * coordinate system of the receiver. - * - * @param point the point used to locate the item - * @return the item at the given point - * - * @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 TreeItem getItem (Point point) { - checkWidget (); - int [] path = new int [1]; - if (!OS.gtk_tree_view_get_path_at_pos(handle, point.x, point.y, path, null, null, null)) return null; - if (path [0] == 0) return null; - int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - OS.gtk_tree_model_get_iter (modelHandle, iter, path [0]); - int [] index = new int [1]; - OS.gtk_tree_model_get (modelHandle, iter, 4, index, -1); - OS.g_free (iter); - return items [index [0]]; -} - -/** - * Returns the number of items contained in the receiver - * that are direct item children of the receiver. The - * number that is returned is the number of roots in the - * tree. - * - * @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 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> - */ -public int getItemHeight () { - checkWidget (); - // FIXME - // I (bgs) am not sure what to do with this. - // In GTK2, rows may have different heights, so asking - // this question will only make sense given the item. - if (OS.gtk_tree_model_iter_n_children (modelHandle, 0) == 0) return 18; - GdkRectangle rect = new GdkRectangle (); - int path = OS.gtk_tree_path_new_first (); - OS.gtk_tree_view_get_cell_area (handle, path, 0, rect); - OS.gtk_tree_path_free (path); - return rect.height; -} - -/** - * Returns the number of items contained in the receiver - * that are direct item children of the receiver. These - * are the roots of the tree. - * <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 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 TreeItem [] getItems () { - checkWidget(); - return getItems (0); -} - -TreeItem [] getItems (int parent) { - int length = OS.gtk_tree_model_iter_n_children (modelHandle, parent); - TreeItem[] result = new TreeItem [length]; - if (length == 0) return result; - int i = 0; - int[] index = new int [1]; - int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - boolean valid = OS.gtk_tree_model_iter_children (modelHandle, iter, parent); - while (valid) { - OS.gtk_tree_model_get (modelHandle, iter, 4, index, -1); - result [i++] = items [index [0]]; - valid = OS.gtk_tree_model_iter_next (modelHandle, iter); - } - OS.g_free (iter); - return result; -} - -/** - * Returns the receiver's parent item, which must be a - * <code>TreeItem</code> or null when the receiver is a - * root. - * - * @return the receiver's parent 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 TreeItem getParentItem () { - checkWidget (); - return null; -} - -/** - * Returns an array of <code>TreeItem</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> - */ -public TreeItem[] getSelection () { - checkWidget(); - if ((style & SWT.MULTI) != 0) { - Display display = getDisplay (); - display.treeSelectionLength = 0; - display.treeSelection = new int [items.length]; - int selection = OS.gtk_tree_view_get_selection (handle); - OS.gtk_tree_selection_selected_foreach (selection, display.treeSelectionProc, handle); - TreeItem [] result = new TreeItem [display.treeSelectionLength]; - for (int i=0; i<result.length; i++) result [i] = items [display.treeSelection [i]]; - return result; - } else { - int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - int selection = OS.gtk_tree_view_get_selection (handle); - boolean hasSelection = OS.gtk_tree_selection_get_selected (selection, null, iter); - TreeItem [] result; - if (hasSelection) { - int [] index = new int [1]; - OS.gtk_tree_model_get (modelHandle, iter, 4, index, -1); - result = new TreeItem []{items [index [0]]}; - } else { - result = new TreeItem [0]; - } - OS.g_free (iter); - 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> - */ -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; -} - -int gtk_changed (int widget) { - TreeItem item = getFocusItem (); - if (item != null) { - Event event = new Event (); - event.item = item; - postEvent (SWT.Selection, event); - } - return 0; -} - -int gtk_key_press_event (int widget, int eventPtr) { - int result = super.gtk_key_press_event (widget, eventPtr); - 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, eventPtr, GdkEventKey.sizeof); - int key = keyEvent.keyval; - switch (key) { - case OS.GDK_Return: - case OS.GDK_KP_Enter: { - Event event = new Event (); - event.item = getFocusItem (); - postEvent (SWT.DefaultSelection, event); - break; - } - } - return result; -} - -int gtk_row_activated (int tree, int path, int column) { - int iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - OS.gtk_tree_model_get_iter (modelHandle, iter, path); - int [] index = new int [1]; - OS.gtk_tree_model_get (modelHandle, iter, 4, index, -1); - OS.g_free (iter); - Event event = new Event (); - event.item = items [index [0]]; - postEvent (SWT.DefaultSelection, event); - return 0; -} - -int gtk_row_collapsed (int tree, int iter, int path) { - int [] index = new int [1]; - OS.gtk_tree_model_get (modelHandle, iter, 4, index, -1); - Event event = new Event (); - event.item = items [index [0]]; - sendEvent (SWT.Collapse, event); - return 0; -} - -int gtk_row_expanded (int tree, int iter, int path) { - int [] index = new int [1]; - OS.gtk_tree_model_get (modelHandle, iter, 4, index, -1); - Event event = new Event (); - event.item = items [index [0]]; - sendEvent (SWT.Expand, event); - OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - OS.gtk_tree_view_expand_row (handle, path, false); - OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - return 0; -} - -int gtk_toggled (int renderer, int pathStr) { - int path = OS.gtk_tree_path_new_from_string (pathStr); - if (path == 0) return 0; - int iter = OS.g_malloc (OS.GtkTreeIter_sizeof()); - OS.gtk_tree_model_get_iter (modelHandle, iter, path); - int [] index = new int [1]; - OS.gtk_tree_model_get (modelHandle, iter, 4, index, -1); - OS.g_free (iter); - OS.gtk_tree_path_free (path); - TreeItem item = items [index [0]]; - item.setChecked (!item.getChecked ()); - Event event = new Event (); - event.detail = SWT.CHECK; - event.item = item; - postEvent (SWT.Selection, event); - return 0; -} - -void hookEvents () { - super.hookEvents (); - Display display = getDisplay (); - int selection = OS.gtk_tree_view_get_selection(handle); - OS.g_signal_connect_after (selection, OS.changed, display.windowProc2, CHANGED); - OS.g_signal_connect (handle, OS.row_activated, display.windowProc4, ROW_ACTIVATED); - OS.g_signal_connect (handle, OS.row_expanded, display.windowProc4, ROW_EXPANDED); - OS.g_signal_connect (handle, OS.row_collapsed, display.windowProc4, ROW_COLLAPSED); - if (checkRenderer != 0) { - OS.g_signal_connect (checkRenderer, OS.toggled, display.windowProc3, TOGGLED); - } -} - -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); - if (checkRenderer != 0) WidgetTable.put (checkRenderer, this); -} - -boolean releaseItem (TreeItem item, int [] index) { - if (item.isDisposed ()) return false; - OS.gtk_tree_model_get (modelHandle, item.handle, 4, index, -1); - items [index [0]] = null; - return true; -} - -void releaseItems (TreeItem [] nodes, int [] index) { - for (int i=0; i<nodes.length; i++) { - TreeItem item = nodes [i]; - TreeItem [] sons = item.getItems (); - if (sons.length != 0) { - releaseItems (sons, index); - } - if (releaseItem (item, index)) { - item.releaseResources (); - } - } -} - -void releaseWidget () { - for (int i=0; i<items.length; i++) { - TreeItem item = items [i]; - if (item != null && !item.isDisposed ()) item.releaseResources(); - } - items = null; - super.releaseWidget(); - if (modelHandle != 0) OS.g_object_unref (modelHandle); - modelHandle = 0; - if (imageList != null) { - imageList.dispose (); - imageList = null; - } -} - -/** - * 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 (); - OS.gtk_tree_store_clear (modelHandle); - for (int i=0; i<items.length; i++) { - TreeItem item = items [i]; - if (item != null && !item.isDisposed ()) item.releaseResources (); - } - items = new TreeItem[4]; -} - -/** - * 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); - eventTable.unhook (SWT.Selection, listener); - eventTable.unhook (SWT.DefaultSelection, listener); -} - -/** - * Removes the listener from the collection of listeners who will - * be notified when items in the receiver are expanded or collapsed.. - * - * @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 TreeListener - * @see #addTreeListener - */ -public void removeTreeListener(TreeListener listener) { - checkWidget (); - if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); - if (eventTable == null) return; - eventTable.unhook (SWT.Expand, listener); - eventTable.unhook (SWT.Collapse, listener); -} - -public void setInsertMark (TreeItem item, boolean set) { - checkWidget (); - //NOT IMPLEMENTED -} - -/** - * 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(); - OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - OS.gtk_tree_selection_select_all (OS.gtk_tree_view_get_selection (handle)); - OS.g_signal_handlers_unblock_matched (handle, 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); -} - -void setForegroundColor (GdkColor color) { - super.setForegroundColor (color); - OS.gtk_widget_modify_text (handle, 0, color); -} - -/** - * 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 array of items is null</li> - * <li>ERROR_INVALID_ARGUMENT - if one of the item has been disposed</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 Tree#deselectAll() - */ -public void setSelection (TreeItem [] 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 (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - OS.gtk_tree_selection_unselect_all (selection); - int i = 0; - boolean first = true; - while (i < items.length) { - TreeItem item = items [i]; - if (item == null) continue; - if (item.isDisposed ()) break; - if (first) { - int path = OS.gtk_tree_model_get_path (modelHandle, item.handle); - showItem (path); - OS.gtk_tree_view_set_cursor (handle, path, 0, false); - OS.gtk_tree_path_free (path); - first = false; - } - OS.gtk_tree_selection_select_iter (selection, item.handle); - i++; - } - OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - if (i < items.length) error (SWT.ERROR_INVALID_ARGUMENT); -} - -/** - * 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 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 Tree#showItem(TreeItem) - */ -public void showSelection () { - checkWidget(); - TreeItem [] items = getSelection (); - if (items.length == 0 && items [0] != null) showItem (items [0]); -} - -void showItem (int path) { - int depth = OS.gtk_tree_path_get_depth (path); - if (depth > 1) { - int [] indices = new int [depth - 1]; - int indicesPtr = OS.gtk_tree_path_get_indices (path); - OS.memmove (indices, indicesPtr, indices.length * 4); - int tempPath = OS.gtk_tree_path_new (); - for (int i=0; i<indices.length; i++) { - OS.gtk_tree_path_append_index (tempPath, indices [i]); - OS.gtk_tree_view_expand_row (handle, tempPath, false); - } - OS.gtk_tree_path_free (tempPath); - } - OS.gtk_tree_view_scroll_to_cell (handle, path, 0, depth != 1, 0.5f, 0.5f); -} - -/** - * Shows the item. If the item is already showing in the receiver, - * this method simply returns. Otherwise, the items are scrolled - * and expanded until the item is visible. - * - * @param item the item to be shown - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the item is null</li> - * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</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 Tree#showSelection() - */ -public void showItem (TreeItem item) { - checkWidget (); - if (item == null) error (SWT.ERROR_NULL_ARGUMENT); - if (item.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); - int path = OS.gtk_tree_model_get_path (modelHandle, item.handle); - showItem (path); - OS.gtk_tree_path_free (path); -} - -int treeSelectionProc (int model, int path, int iter, int[] selection, int length) { - if (selection != null) { - int [] index = new int [1]; - OS.gtk_tree_model_get (modelHandle, iter, 4, index, -1); - selection [length] = index [0]; - } - return 0; -} - -} - |