diff options
Diffstat (limited to 'bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/List.java')
| -rw-r--r-- | bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/List.java | 1594 |
1 files changed, 0 insertions, 1594 deletions
diff --git a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/List.java b/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/List.java deleted file mode 100644 index b1df97fd18..0000000000 --- a/bundles/org.eclipse.swt/Eclipse SWT/gtk/org/eclipse/swt/widgets/List.java +++ /dev/null @@ -1,1594 +0,0 @@ -/******************************************************************************* - * Copyright (c) 2000, 2009 IBM Corporation and others. - * All rights reserved. This program and the accompanying materials - * are made available under the terms of the Eclipse Public License v1.0 - * which accompanies this distribution, and is available at - * http://www.eclipse.org/legal/epl-v10.html - * - * Contributors: - * IBM Corporation - initial API and implementation - *******************************************************************************/ -package org.eclipse.swt.widgets; - - -import org.eclipse.swt.*; -import org.eclipse.swt.internal.*; -import org.eclipse.swt.internal.gtk.*; -import org.eclipse.swt.graphics.*; -import org.eclipse.swt.events.*; - -/** - * Instances of this class represent a selectable user interface - * object that displays a list of strings and issues notification - * when a string is 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> - * - * @see <a href="http://www.eclipse.org/swt/snippets/#list">List 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 List extends Scrollable { - int /*long*/ modelHandle; - - static final int TEXT_COLUMN = 0; - -/** - * 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> - * - * @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 /*long*/ 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, TEXT_COLUMN, 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> - * - * @see #add(String) - */ -public void add (String string, int index) { - checkWidget(); - if (string == null) error (SWT.ERROR_NULL_ARGUMENT); - int count = OS.gtk_tree_model_iter_n_children (modelHandle, 0); - if (!(0 <= index && index <= count)) { - error (SWT.ERROR_INVALID_RANGE); - } - byte [] buffer = Converter.wcsToMbcs (null, string, true); - int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - if (iter == 0) error (SWT.ERROR_ITEM_NOT_ADDED); - /* - * Feature in GTK. It is much faster to append to a list store - * than to insert at the end using gtk_list_store_insert(). - */ - if (index == count) { - OS.gtk_list_store_append (modelHandle, iter); - } else { - OS.gtk_list_store_insert (modelHandle, iter, index); - } - OS.gtk_list_store_set (modelHandle, iter, TEXT_COLUMN, buffer, -1); - OS.g_free (iter); -} - -/** - * 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 selection changes. - * <code>widgetDefaultSelected</code> is typically called when an item is double-clicked. - * </p> - * - * @param listener the listener which should be notified when the user changes the receiver's selection - * - * @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.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); - scrolledHandle = OS.gtk_scrolled_window_new (0, 0); - if (scrolledHandle == 0) error (SWT.ERROR_NO_HANDLES); - /* - * Columns: - * 0 - text - */ - int /*long*/ [] types = new int /*long*/ [] {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 /*long*/ textRenderer = OS.gtk_cell_renderer_text_new (); - if (textRenderer == 0) error (SWT.ERROR_NO_HANDLES); - int /*long*/ 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, OS.text, TEXT_COLUMN); - OS.gtk_tree_view_insert_column (handle, columnHandle, index); - OS.gtk_container_add (fixedHandle, scrolledHandle); - OS.gtk_container_add (scrolledHandle, handle); - - int mode = (style & SWT.MULTI) != 0 ? OS.GTK_SELECTION_MULTIPLE : OS.GTK_SELECTION_BROWSE; - int /*long*/ 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); - /* - * Bug in GTK. When a treeview is the child of an override shell, - * and if the user has ever invokes the interactive search field, - * and the treeview is disposed on a focus out event, it segment - * faults. The fix is to disable the search field in an override - * shell. - */ - if ((getShell ().style & SWT.ON_TOP) != 0) { - /* - * Bug in GTK. Until GTK 2.6.5, calling gtk_tree_view_set_enable_search(FALSE) - * would prevent the user from being able to type in text to search the tree. - * After 2.6.5, GTK introduced Ctrl+F as being the key binding for interactive - * search. This meant that even if FALSE was passed to enable_search, the user - * can still bring up the search pop up using the keybinding. GTK also introduced - * the notion of passing a -1 to gtk_set_search_column to disable searching - * (including the search key binding). The fix is to use the right calls - * for the right version. - */ - if (OS.GTK_VERSION >= OS.VERSION (2, 6, 5)) { - OS.gtk_tree_view_set_search_column (handle, -1); - } else { - OS.gtk_tree_view_set_enable_search (handle, false); - } - } -} - -public Point computeSize (int wHint, int hHint, boolean changed) { - checkWidget (); - if (wHint != SWT.DEFAULT && wHint < 0) wHint = 0; - if (hHint != SWT.DEFAULT && hHint < 0) hHint = 0; - 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 deregister() { - super.deregister (); - display.removeWidget (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 /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - int /*long*/ 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 /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - int /*long*/ 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 set of indices 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 /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - int count = OS.gtk_tree_model_iter_n_children (modelHandle, 0); - int /*long*/ 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 - 1) 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 /*long*/ 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); -} - -boolean dragDetect (int x, int y, boolean filter, boolean [] consume) { - boolean selected = false; - if (filter) { - int /*long*/ [] path = new int /*long*/ [1]; - if (OS.gtk_tree_view_get_path_at_pos (handle, x, y, path, null, null, null)) { - if (path [0] != 0) { - int /*long*/ selection = OS.gtk_tree_view_get_selection (handle); - if (OS.gtk_tree_selection_path_is_selected (selection, path [0])) selected = true; - OS.gtk_tree_path_free (path [0]); - } - } else { - return false; - } - } - boolean dragDetect = super.dragDetect (x, y, filter, consume); - if (dragDetect && selected && consume != null) consume [0] = true; - return dragDetect; -} - -int /*long*/ eventWindow () { - return paintWindow (); -} - -GdkColor getBackgroundColor () { - return getBaseColor (); -} - -/** - * Returns the zero-relative index of the item which currently - * has the focus in the receiver, or -1 if no item 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 /*long*/ [] path = new int /*long*/ [1]; - OS.gtk_tree_view_get_cursor (handle, path, null); - if (path [0] == 0) return -1; - int /*long*/ 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> - */ -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 /*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) 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> - */ -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 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(); - int itemCount = OS.gtk_tree_model_iter_n_children (modelHandle, 0); - int /*long*/ column = OS.gtk_tree_view_get_column (handle, 0); - if (itemCount == 0) { - int [] w = new int [1], h = new int [1]; - OS.gtk_tree_view_column_cell_get_size (column, null, null, null, w, h); - return h [0]; - } else { - int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - OS.gtk_tree_model_get_iter_first (modelHandle, iter); - OS.gtk_tree_view_column_cell_set_cell_data (column, modelHandle, iter, false, false); - int [] w = new int [1], h = new int [1]; - OS.gtk_tree_view_column_cell_get_size (column, null, null, null, w, h); - OS.g_free (iter); - return h [0]; - } -} - -/** - * Returns a (possibly empty) 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> - */ -public String [] getItems () { - checkWidget(); - int count = OS.gtk_tree_model_iter_n_children (modelHandle, 0); - int /*long*/ [] ptr = new int /*long*/ [1]; - String [] result = new String [count]; - int /*long*/ 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. The order of the items is unspecified. - * 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 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> - */ -public int getSelectionCount () { - checkWidget(); - int /*long*/ selection = OS.gtk_tree_view_get_selection (handle); - if (OS.GTK_VERSION < OS.VERSION (2, 2, 0)) { - display.treeSelectionLength = 0; - display.treeSelection = null; - OS.gtk_tree_selection_selected_foreach (selection, display.treeSelectionProc, handle); - return display.treeSelectionLength; - } - return OS.gtk_tree_selection_count_selected_rows (selection); -} - -/** - * 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 or -1 - * - * @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(); - int /*long*/ selection = OS.gtk_tree_view_get_selection (handle); - if (OS.GTK_VERSION < OS.VERSION (2, 2, 0)) { - int itemCount = OS.gtk_tree_model_iter_n_children (modelHandle, 0); - display.treeSelectionLength = 0; - display.treeSelection = new int [itemCount]; - OS.gtk_tree_selection_selected_foreach (selection, display.treeSelectionProc, handle); - if (display.treeSelectionLength == 0) return -1; - return display.treeSelection [0]; - } - /* - * Bug in GTK. gtk_tree_selection_get_selected_rows() segmentation faults - * in versions smaller than 2.2.4 if the model is NULL. The fix is - * to give a valid pointer instead. - */ - int /*long*/ [] model = OS.GTK_VERSION < OS.VERSION (2, 2, 4) ? new int /*long*/ [1] : null; - int /*long*/ list = OS.gtk_tree_selection_get_selected_rows (selection, model); - if (list != 0) { - int count = OS.g_list_length (list); - int [] index = new int [1]; - for (int i=0; i<count; i++) { - int /*long*/ data = OS.g_list_nth_data (list, i); - int /*long*/ indices = OS.gtk_tree_path_get_indices (data); - if (indices != 0) { - OS.memmove (index, indices, 4); - break; - } - } - OS.g_list_free (list); - return index [0]; - } - return -1; -} - -/** - * Returns the zero-relative indices of the items which are currently - * selected in the receiver. The order of the indices is unspecified. - * 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> - */ -public int [] getSelectionIndices () { - checkWidget(); - int /*long*/ selection = OS.gtk_tree_view_get_selection (handle); - if (OS.GTK_VERSION < OS.VERSION (2, 2, 0)) { - int itemCount = OS.gtk_tree_model_iter_n_children (modelHandle, 0); - display.treeSelectionLength = 0; - display.treeSelection = new int [itemCount]; - 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; - } - /* - * Bug in GTK. gtk_tree_selection_get_selected_rows() segmentation faults - * in versions smaller than 2.2.4 if the model is NULL. The fix is - * to give a valid pointer instead. - */ - int /*long*/ [] model = OS.GTK_VERSION < OS.VERSION (2, 2, 4) ? new int /*long*/ [1] : null; - int /*long*/ list = OS.gtk_tree_selection_get_selected_rows (selection, model); - if (list != 0) { - int count = OS.g_list_length (list); - int [] treeSelection = new int [count]; - int length = 0; - for (int i=0; i<count; i++) { - int /*long*/ data = OS.g_list_nth_data (list, i); - int /*long*/ indices = OS.gtk_tree_path_get_indices (data); - if (indices != 0) { - int [] index = new int [1]; - OS.memmove (index, indices, 4); - treeSelection [length] = index [0]; - length++; - } - } - OS.g_list_free (list); - int [] result = new int [length]; - System.arraycopy (treeSelection, 0, result, 0, length); - return result; - } - return new int [0]; -} - -/** - * 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 /*long*/ [] path = new int /*long*/ [1]; - OS.gtk_widget_realize (handle); - 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 /*long*/ 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 /*long*/ gtk_changed (int /*long*/ widget) { - postEvent (SWT.Selection); - return 0; -} - -int /*long*/ gtk_button_press_event (int /*long*/ widget, int /*long*/ event) { - int /*long*/ result = super.gtk_button_press_event (widget, event); - if (result != 0) return result; - /* - * Feature in GTK. In a multi-select list view, when multiple items are already - * selected, the selection state of the item is toggled and the previous selection - * is cleared. This is not the desired behaviour when bringing up a popup menu. - * Also, when an item is reselected with the right button, the tree view issues - * an unwanted selection event. The workaround is to detect that case and not - * run the default handler when the item is already part of the current selection. - */ - GdkEventButton gdkEvent = new GdkEventButton (); - OS.memmove (gdkEvent, event, GdkEventButton.sizeof); - int button = gdkEvent.button; - if (button == 3 && gdkEvent.type == OS.GDK_BUTTON_PRESS) { - int /*long*/ [] path = new int /*long*/ [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 /*long*/ 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]); - } - } - } - - /* - * Feature in GTK. When the user clicks in a single selection GtkTreeView - * and there are no selected items, the first item is selected automatically - * before the click is processed, causing two selection events. The is fix - * is the set the cursor item to be same as the clicked item to stop the - * widget from automatically selecting the first item. - */ - if ((style & SWT.SINGLE) != 0 && getSelectionCount () == 0) { - int /*long*/ [] path = new int /*long*/ [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 /*long*/ 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_view_set_cursor (handle, path [0], 0, false); - OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - OS.gtk_tree_path_free (path [0]); - } - } - } - /* - * Bug in GTK. GTK segments fault, if the GtkTreeView widget is - * not in focus and all items in the widget are disposed before - * it finishes processing a button press. The fix is to give - * focus to the widget before it starts processing the event. - */ - if (!OS.GTK_WIDGET_HAS_FOCUS (handle)) { - OS.gtk_widget_grab_focus (handle); - } - return result; -} - -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) return result; - if (OS.GTK_VERSION < OS.VERSION (2, 2 ,0)) { - /* - * Feature in GTK 2.0.x. 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 /*long*/ gtk_popup_menu (int /*long*/ widget) { - int /*long*/ result = super.gtk_popup_menu (widget); - /* - * Bug in GTK. The context menu for the typeahead in GtkTreeViewer - * opens in the bottom right corner of the screen when Shift+F10 - * is pressed and the typeahead window was not visible. The fix is - * to prevent the context menu from opening by stopping the default - * handler. - * - * NOTE: The bug only happens in GTK 2.6.5 and lower. - */ - return OS.GTK_VERSION < OS.VERSION (2, 6, 5) ? 1 : result; -} - -int /*long*/ gtk_row_activated (int /*long*/ tree, int /*long*/ path, int /*long*/ column) { - postEvent (SWT.DefaultSelection); - return 0; -} - -void hookEvents () { - super.hookEvents(); - int /*long*/ selection = OS.gtk_tree_view_get_selection(handle); - OS.g_signal_connect_closure (selection, OS.changed, display.closures [CHANGED], false); - OS.g_signal_connect_closure (handle, OS.row_activated, display.closures [ROW_ACTIVATED], false); -} - -/** - * 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 - * @param start the zero-relative index at which to start 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); - 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 selection 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 /*long*/ selection = OS.gtk_tree_view_get_selection (handle); - byte [] buffer = Converter.wcsToMbcs (null, Integer.toString (index), true); - int /*long*/ 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 /*long*/ paintWindow () { - OS.gtk_widget_realize (handle); - return OS.gtk_tree_view_get_bin_window (handle); -} - -void register () { - super.register (); - display.addWidget (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> - */ -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 /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); - int /*long*/ 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> - */ -public void remove (int start, int end) { - checkWidget(); - if (start > end) return; - int count = OS.gtk_tree_model_iter_n_children (modelHandle, 0); - if (!(0 <= start && start <= end && end < count)) { - error (SWT.ERROR_INVALID_RANGE); - } - int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - int /*long*/ 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=end; 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); -} - -/** - * 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 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> - */ -public void remove (int [] indices) { - checkWidget(); - if (indices == null) error (SWT.ERROR_NULL_ARGUMENT); - if (indices.length == 0) return; - int [] newIndices = new int [indices.length]; - System.arraycopy (indices, 0, newIndices, 0, indices.length); - sort (newIndices); - int start = newIndices [newIndices.length - 1], end = newIndices [0]; - int count = getItemCount(); - if (!(0 <= start && start <= end && end < count)) { - error (SWT.ERROR_INVALID_RANGE); - } - int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - int /*long*/ 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; - for (int i=0; i<newIndices.length; i++) { - int index = newIndices [i]; - if (index != last) { - OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); - OS.gtk_list_store_remove (modelHandle, iter); - last = index; - } - } - 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 /*long*/ 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 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); -} - -/** - * 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 /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - int /*long*/ 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_select_iter (selection, iter); - if ((style & SWT.SINGLE) != 0) { - int /*long*/ 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); - } - OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - OS.g_free (iter); -} - -/** - * Selects the items in the range specified by the given zero-relative - * indices in the receiver. The range of indices is inclusive. - * The current selection is not cleared before the new items are selected. - * <p> - * If an item in the given range is not selected, it is selected. - * If an item in the given range was already selected, it remains selected. - * Indices that are out of range are ignored and no items will be selected - * if start is greater than end. - * If the receiver is single-select and there is more than one item in the - * given range, then all indices are ignored. - * - * @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> - * - * @see List#setSelection(int,int) - */ -public void select (int start, int end) { - checkWidget (); - if (end < 0 || start > end || ((style & SWT.SINGLE) != 0 && start != end)) return; - int count = OS.gtk_tree_model_iter_n_children (modelHandle, 0); - if (count == 0 || start >= count) return; - start = Math.max (0, start); - end = Math.min (end, count - 1); - int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - int /*long*/ 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_select_iter (selection, iter); - if ((style & SWT.SINGLE) != 0) { - int /*long*/ 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); - } - } - 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. - * The current selection is not cleared before the new items are selected. - * <p> - * If the item at a given index is not selected, it is selected. - * If the item at a given index was already selected, it remains selected. - * Indices that are out of range and duplicate indices are ignored. - * If the receiver is single-select and multiple indices are specified, - * then all indices are ignored. - * - * @param indices the array of indices for the items to select - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the array of indices 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#setSelection(int[]) - */ -public void select (int [] indices) { - checkWidget (); - if (indices == null) error (SWT.ERROR_NULL_ARGUMENT); - int length = indices.length; - if (length == 0 || ((style & SWT.SINGLE) != 0 && length > 1)) return; - int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - int count = OS.gtk_tree_model_iter_n_children (modelHandle, 0); - int /*long*/ 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<length; i++) { - int index = indices [i]; - if (!(0 <= index && index < count)) continue; - OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); - OS.gtk_tree_selection_select_iter (selection, iter); - if ((style & SWT.SINGLE) != 0) { - int /*long*/ 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); - } - } - OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); - OS.g_free (iter); -} - -/** - * Selects all of the items in the receiver. - * <p> - * If the receiver is single-select, do nothing. - * - * @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 /*long*/ 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 selectFocusIndex (int index) { - /* - * Note that this method both selects and sets the focus to the - * specified index, so any previous selection in the list will be lost. - * gtk does not provide a way to just set focus to a specified list item. - */ - int count = OS.gtk_tree_model_iter_n_children (modelHandle, 0); - if (!(0 <= index && index < count)) return; - int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); - int /*long*/ path = OS.gtk_tree_model_get_path (modelHandle, iter); - int /*long*/ 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_view_set_cursor (handle, path, 0, false); - /* - * Bug in GTK. For some reason, when an event loop is run from - * within a key pressed handler and a dialog is displayed that - * contains a GtkTreeView, gtk_tree_view_set_cursor() does - * not set the cursor or select the item. The fix is to select the - * item with gtk_tree_selection_select_iter() as well. - * - * NOTE: This happens in GTK 2.2.1 and is fixed in GTK 2.2.4. - */ - 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.gtk_tree_path_free (path); - OS.g_free (iter); -} - -void setBackgroundColor (GdkColor color) { - super.setBackgroundColor (color); - OS.gtk_widget_modify_base (handle, 0, color); -} - -int setBounds (int x, int y, int width, int height, boolean move, boolean resize) { - int 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); - /* - * Bug in GTK. An empty GtkTreeView fails to repaint the focus rectangle - * correctly when resized on versions before 2.6.0. The fix is to force - * the widget to redraw. - */ - if (OS.GTK_VERSION < OS.VERSION (2, 6, 0) && OS.gtk_tree_model_iter_n_children (modelHandle, 0) == 0) { - redraw (false); - } - return result; -} - -/** - * 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 < OS.gtk_tree_model_iter_n_children (modelHandle, 0))) { - error (SWT.ERROR_INVALID_RANGE); - } - int /*long*/ 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, TEXT_COLUMN, 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> - * <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 /*long*/ 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 /*long*/ 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]; - byte [] buffer = Converter.wcsToMbcs (null, string, true); - OS.gtk_list_store_append (modelHandle, iter); - OS.gtk_list_store_set (modelHandle, iter, TEXT_COLUMN, 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 selection is first cleared, then the new item is 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 (); - deselectAll (); - selectFocusIndex (index); - showSelection (); -} - -/** - * Selects the items in the range specified by the given zero-relative - * indices in the receiver. The range of indices is inclusive. - * The current selection is cleared before the new items are selected. - * <p> - * Indices that are out of range are ignored and no items will be selected - * if start is greater than end. - * If the receiver is single-select and there is more than one item in the - * given range, then all indices are ignored. - * - * @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 List#deselectAll() - * @see List#select(int,int) - */ -public void setSelection (int start, int end) { - checkWidget (); - deselectAll (); - if (end < 0 || start > end || ((style & SWT.SINGLE) != 0 && start != end)) return; - int count = OS.gtk_tree_model_iter_n_children (modelHandle, 0); - if (count == 0 || start >= count) return; - start = Math.max (0, start); - end = Math.min (end, count - 1); - selectFocusIndex (start); - if ((style & SWT.MULTI) != 0) { - select (start, end); - } - showSelection (); -} - -/** - * Selects the items at the given zero-relative indices in the receiver. - * The current selection is cleared before the new items are selected. - * <p> - * Indices that are out of range and duplicate indices are ignored. - * If the receiver is single-select and multiple indices are specified, - * then all indices are ignored. - * - * @param indices the indices of the items to select - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the array of indices 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); - deselectAll (); - int length = indices.length; - if (length == 0 || ((style & SWT.SINGLE) != 0 && length > 1)) return; - selectFocusIndex (indices [0]); - if ((style & SWT.MULTI) != 0) { - select (indices); - } - showSelection (); -} - -/** - * Sets the receiver's selection to be the given array of items. - * The current selection is cleared before the new items are selected. - * <p> - * Items that are not in the receiver are ignored. - * If the receiver is single-select and multiple items are specified, - * then all items are ignored. - * - * @param items the array of items - * - * @exception IllegalArgumentException <ul> - * <li>ERROR_NULL_ARGUMENT - if the array of items 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[]) - * @see List#setSelection(int[]) - */ -public void setSelection (String [] items) { - checkWidget (); - if (items == null) error (SWT.ERROR_NULL_ARGUMENT); - deselectAll (); - int length = items.length; - if (length == 0 || ((style & SWT.SINGLE) != 0 && length > 1)) return; - boolean first = true; - for (int i = 0; i < length; i++) { - int index = 0; - String string = items [i]; - if (string != null) { - while ((index = indexOf (string, index)) != -1) { - if ((style & SWT.MULTI) != 0) { - if (first) { - first = false; - selectFocusIndex (index); - } else { - select (index); - } - } else { - selectFocusIndex (index); - break; - } - index++; - } - } - } - 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; - int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); - int /*long*/ path = OS.gtk_tree_model_get_path (modelHandle, iter); - OS.gtk_tree_view_scroll_to_cell (handle, path, 0, true, 0, 0); - if (OS.GTK_VERSION < OS.VERSION (2, 8, 0)) { - /* - * Bug in GTK. According to the documentation, gtk_tree_view_scroll_to_cell - * should vertically scroll the cell to the top if use_align is true and row_align is 0. - * However, prior to version 2.8 it does not scroll at all. The fix is to determine - * the new location and use gtk_tree_view_scroll_to_point. - * If the widget is a pinhead, calling gtk_tree_view_scroll_to_point - * will have no effect. Therefore, it is still neccessary to call - * gtk_tree_view_scroll_to_cell. - */ - OS.gtk_widget_realize (handle); - GdkRectangle cellRect = new GdkRectangle (); - OS.gtk_tree_view_get_cell_area (handle, path, 0, cellRect); - int[] tx = new int[1], ty = new int[1]; - OS.gtk_tree_view_widget_to_tree_coords(handle, cellRect.x, cellRect.y, tx, ty); - OS.gtk_tree_view_scroll_to_point (handle, -1, ty[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 /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); - OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, index); - int /*long*/ path = OS.gtk_tree_model_get_path (modelHandle, iter); - /* - * This code intentionally commented. - * Bug in GTK. According to the documentation, gtk_tree_view_scroll_to_cell - * should scroll the minimum amount to show the cell if use_align is false. - * However, what actually happens is the cell is scrolled to the top. - * The fix is to determine the new location and use gtk_tree_view_scroll_to_point. - * If the widget is a pinhead, calling gtk_tree_view_scroll_to_point - * will have no effect. Therefore, it is still neccessary to - * call gtk_tree_view_scroll_to_cell. - */ -// OS.gtk_tree_view_scroll_to_cell (handle, path, 0, false, 0, 0); - OS.gtk_widget_realize (handle); - GdkRectangle visibleRect = new GdkRectangle (); - OS.gtk_tree_view_get_visible_rect (handle, visibleRect); - GdkRectangle cellRect = new GdkRectangle (); - OS.gtk_tree_view_get_cell_area (handle, path, 0, cellRect); - int[] tx = new int[1], ty = new int[1]; - OS.gtk_tree_view_widget_to_tree_coords(handle, cellRect.x, cellRect.y, tx, ty); - if (ty[0] < visibleRect.y ) { - OS.gtk_tree_view_scroll_to_cell (handle, path, 0, true, 0f, 0f); - OS.gtk_tree_view_scroll_to_point (handle, -1, ty[0]); - } else { - int height = Math.min (visibleRect.height, cellRect.height); - if (ty[0] + height > visibleRect.y + visibleRect.height) { - OS.gtk_tree_view_scroll_to_cell (handle, path, 0, true, 1f, 0f); - ty[0] += cellRect.height - visibleRect.height; - OS.gtk_tree_view_scroll_to_point (handle, -1, ty[0]); - } - } - OS.gtk_tree_path_free (path); - OS.g_free (iter); -} - -int /*long*/ treeSelectionProc (int /*long*/ model, int /*long*/ path, int /*long*/ iter, int[] selection, int length) { - if (selection != null) { - int /*long*/ 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; -} - -} |