| /******************************************************************************* |
| * Copyright (c) 2000, 2007 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 provide a selectable user interface object |
| * that displays a hierarchy of items and issues notification 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> |
| * Style <code>VIRTUAL</code> is used to create a <code>Tree</code> whose |
| * <code>TreeItem</code>s are to be populated by the client on an on-demand basis |
| * instead of up-front. This can provide significant performance improvements for |
| * trees that are very large or for which <code>TreeItem</code> population is |
| * expensive (for example, retrieving values from an external source). |
| * </p><p> |
| * Here is an example of using a <code>Tree</code> with style <code>VIRTUAL</code>: |
| * <code><pre> |
| * final Tree tree = new Tree(parent, SWT.VIRTUAL | SWT.BORDER); |
| * tree.setItemCount(20); |
| * tree.addListener(SWT.SetData, new Listener() { |
| * public void handleEvent(Event event) { |
| * TreeItem item = (TreeItem)event.item; |
| * TreeItem parentItem = item.getParentItem(); |
| * String text = null; |
| * if (parentItem == null) { |
| * text = "node " + tree.indexOf(item); |
| * } else { |
| * text = parentItem.getText() + " - " + parentItem.indexOf(item); |
| * } |
| * item.setText(text); |
| * System.out.println(text); |
| * item.setItemCount(10); |
| * } |
| * }); |
| * </pre></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, FULL_SELECTION, VIRTUAL</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Selection, DefaultSelection, Collapse, Expand, SetData, MeasureItem, EraseItem, PaintItem</dd> |
| * </dl> |
| * </p><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 /*long*/ modelHandle, checkRenderer; |
| int columnCount, sortDirection; |
| int /*long*/ ignoreCell; |
| TreeItem[] items; |
| TreeColumn [] columns; |
| TreeColumn sortColumn; |
| TreeItem currentItem; |
| ImageList imageList, headerImageList; |
| boolean firstCustomDraw; |
| boolean modelChanged; |
| boolean expandAll; |
| int drawState, drawFlags; |
| GdkColor drawForeground; |
| boolean ownerDraw, ignoreSize; |
| |
| static final int ID_COLUMN = 0; |
| static final int CHECKED_COLUMN = 1; |
| static final int GRAYED_COLUMN = 2; |
| static final int FOREGROUND_COLUMN = 3; |
| static final int BACKGROUND_COLUMN = 4; |
| static final int FONT_COLUMN = 5; |
| static final int FIRST_COLUMN = FONT_COLUMN + 1; |
| static final int CELL_PIXBUF = 0; |
| static final int CELL_TEXT = 1; |
| static final int CELL_FOREGROUND = 2; |
| static final int CELL_BACKGROUND = 3; |
| static final int CELL_FONT = 4; |
| static final int CELL_TYPES = CELL_FONT + 1; |
| |
| /** |
| * 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)); |
| } |
| |
| void _addListener (int eventType, Listener listener) { |
| super._addListener (eventType, listener); |
| if (!ownerDraw) { |
| switch (eventType) { |
| case SWT.MeasureItem: |
| case SWT.EraseItem: |
| case SWT.PaintItem: |
| ownerDraw = true; |
| recreateRenderers (); |
| break; |
| } |
| } |
| } |
| |
| TreeItem _getItem (int /*long*/ iter) { |
| int id = getId (iter, true); |
| if (items [id] != null) return items [id]; |
| int /*long*/ path = OS.gtk_tree_model_get_path (modelHandle, iter); |
| int depth = OS.gtk_tree_path_get_depth (path); |
| int [] indices = new int [depth]; |
| OS.memmove (indices, OS.gtk_tree_path_get_indices (path), 4*depth); |
| int /*long*/ parentIter = 0; |
| if (depth > 1) { |
| OS.gtk_tree_path_up (path); |
| parentIter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| OS.gtk_tree_model_get_iter (modelHandle, parentIter, path); |
| } |
| items [id] = new TreeItem (this, parentIter, SWT.NONE, indices [indices.length -1], false); |
| OS.gtk_tree_path_free (path); |
| if (parentIter != 0) OS.g_free (parentIter); |
| return items [id]; |
| } |
| |
| TreeItem _getItem (int /*long*/ parentIter, int index) { |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| OS.gtk_tree_model_iter_nth_child(modelHandle, iter, parentIter, index); |
| int id = getId (iter, true); |
| OS.g_free (iter); |
| if (items [id] != null) return items [id]; |
| return items [id] = new TreeItem (this, parentIter, SWT.NONE, index, false); |
| } |
| |
| int getId (int /*long*/ iter, boolean queryModel) { |
| if (queryModel) { |
| int[] value = new int[1]; |
| OS.gtk_tree_model_get (modelHandle, iter, ID_COLUMN, value, -1); |
| if (value [0] != -1) return value [0]; |
| } |
| // find next available id |
| 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; |
| } |
| OS.gtk_tree_store_set (modelHandle, iter, ID_COLUMN, id, -1); |
| return id; |
| } |
| |
| static int checkStyle (int style) { |
| /* |
| * To be compatible with Windows, force the H_SCROLL |
| * and V_SCROLL style bits. On Windows, it is not |
| * possible to create a tree without scroll bars. |
| */ |
| style |= SWT.H_SCROLL | SWT.V_SCROLL; |
| /* GTK is always FULL_SELECTION */ |
| style |= SWT.FULL_SELECTION; |
| return checkBits (style, SWT.SINGLE, SWT.MULTI, 0, 0, 0, 0); |
| } |
| |
| int /*long*/ cellDataProc (int /*long*/ tree_column, int /*long*/ cell, int /*long*/ tree_model, int /*long*/ iter, int /*long*/ data) { |
| if (cell == ignoreCell) return 0; |
| TreeItem item = _getItem (iter); |
| if (item != null) OS.g_object_set_qdata (cell, Display.SWT_OBJECT_INDEX2, item.handle); |
| boolean isPixbuf = OS.GTK_IS_CELL_RENDERER_PIXBUF (cell); |
| if (!(isPixbuf || OS.GTK_IS_CELL_RENDERER_TEXT (cell))) return 0; |
| int modelIndex = -1; |
| boolean customDraw = false; |
| if (columnCount == 0) { |
| modelIndex = Tree.FIRST_COLUMN; |
| customDraw = firstCustomDraw; |
| } else { |
| TreeColumn column = (TreeColumn) display.getWidget (tree_column); |
| if (column != null) { |
| modelIndex = column.modelIndex; |
| customDraw = column.customDraw; |
| } |
| } |
| if (modelIndex == -1) return 0; |
| boolean setData = false; |
| if ((style & SWT.VIRTUAL) != 0) { |
| /* |
| * Feature in GTK. On GTK before 2.4, fixed_height_mode is not |
| * supported, and the tree asks for the data of all items. The |
| * fix is to only provide the data if the row is visible. |
| */ |
| if (OS.GTK_VERSION < OS.VERSION (2, 3, 2)) { |
| int /*long*/ path = OS.gtk_tree_model_get_path (tree_model, iter); |
| OS.gtk_widget_realize (handle); |
| GdkRectangle visible = new GdkRectangle (); |
| OS.gtk_tree_view_get_visible_rect (handle, visible); |
| GdkRectangle area = new GdkRectangle (); |
| OS.gtk_tree_view_get_cell_area (handle, path, tree_column, area); |
| OS.gtk_tree_path_free (path); |
| if (area.y + area.height < 0 || area.y + visible.y > visible.y + visible.height ) { |
| /* Give an image from the image list to make sure the row has |
| * the correct height. |
| */ |
| if (imageList != null && imageList.pixbufs.length > 0) { |
| if (isPixbuf) OS.g_object_set (cell, OS.pixbuf, imageList.pixbufs [0], 0); |
| } |
| return 0; |
| } |
| } |
| if (!item.cached) { |
| //lastIndexOf = index [0]; |
| setData = checkData (item); |
| } |
| } |
| int /*long*/ [] ptr = new int /*long*/ [1]; |
| if (setData) { |
| if (isPixbuf) { |
| ptr [0] = 0; |
| OS.gtk_tree_model_get (tree_model, iter, modelIndex + CELL_PIXBUF, ptr, -1); |
| OS.g_object_set (cell, OS.pixbuf, ptr[0], 0); |
| } else { |
| ptr [0] = 0; |
| OS.gtk_tree_model_get (tree_model, iter, modelIndex + CELL_TEXT, ptr, -1); |
| if (ptr [0] != 0) { |
| OS.g_object_set (cell, OS.text, ptr[0], 0); |
| OS.g_free (ptr[0]); |
| } |
| } |
| } |
| if (customDraw) { |
| /* |
| * Bug on GTK. Gtk renders the background on top of the checkbox and pixbuf. |
| * This only happens in version 2.2.1 and earlier. The fix is not to set the background. |
| */ |
| if (OS.GTK_VERSION > OS.VERSION (2, 2, 1)) { |
| if (!ownerDraw) { |
| ptr [0] = 0; |
| OS.gtk_tree_model_get (tree_model, iter, modelIndex + CELL_BACKGROUND, ptr, -1); |
| if (ptr [0] != 0) { |
| OS.g_object_set (cell, OS.cell_background_gdk, ptr[0], 0); |
| } |
| } |
| } |
| if (!isPixbuf) { |
| ptr [0] = 0; |
| OS.gtk_tree_model_get (tree_model, iter, modelIndex + CELL_FOREGROUND, ptr, -1); |
| if (ptr [0] != 0) { |
| OS.g_object_set (cell, OS.foreground_gdk, ptr[0], 0); |
| } |
| ptr [0] = 0; |
| OS.gtk_tree_model_get (tree_model, iter, modelIndex + CELL_FONT, ptr, -1); |
| if (ptr [0] != 0) { |
| OS.g_object_set (cell, OS.font_desc, ptr[0], 0); |
| } |
| } |
| } |
| if (setData) { |
| ignoreCell = cell; |
| setScrollWidth (tree_column, item); |
| ignoreCell = 0; |
| } |
| return 0; |
| } |
| |
| boolean checkData (TreeItem item) { |
| if (item.cached) return true; |
| if ((style & SWT.VIRTUAL) != 0) { |
| item.cached = true; |
| TreeItem parentItem = item.getParentItem (); |
| Event event = new Event (); |
| event.item = item; |
| event.index = parentItem == null ? indexOf (item) : parentItem.indexOf (item); |
| int mask = OS.G_SIGNAL_MATCH_DATA | OS.G_SIGNAL_MATCH_ID; |
| int signal_id = OS.g_signal_lookup (OS.row_changed, OS.gtk_tree_model_get_type ()); |
| OS.g_signal_handlers_block_matched (modelHandle, mask, signal_id, 0, 0, 0, handle); |
| currentItem = item; |
| sendEvent (SWT.SetData, event); |
| currentItem = null; |
| //widget could be disposed at this point |
| if (isDisposed ()) return false; |
| OS.g_signal_handlers_unblock_matched (modelHandle, mask, signal_id, 0, 0, 0, handle); |
| if (item.isDisposed ()) return false; |
| } |
| return true; |
| } |
| |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| /** |
| * 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> |
| * When <code>widgetSelected</code> is called, the item field of the event object is valid. |
| * If the receiver has the <code>SWT.CHECK</code> style 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 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); |
| } |
| |
| /** |
| * 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); |
| } |
| |
| int calculateWidth (int /*long*/ column, int /*long*/ iter) { |
| OS.gtk_tree_view_column_cell_set_cell_data (column, modelHandle, iter, false, false); |
| /* |
| * Bug in GTK. The width calculated by gtk_tree_view_column_cell_get_size() |
| * always grows in size regardless of the text or images in the table. |
| * The fix is to determine the column width from the cell renderers. |
| */ |
| // Code intentionally commented |
| //int [] width = new int [1]; |
| //OS.gtk_tree_view_column_cell_get_size (column, null, null, null, width, null); |
| //return width [0]; |
| |
| int width = 0; |
| int [] w = new int [1]; |
| if (OS.gtk_tree_view_get_expander_column (handle) == column) { |
| OS.gtk_widget_style_get (handle, OS.expander_size, w, 0); |
| width += w [0] + TreeItem.EXPANDER_EXTRA_PADDING; |
| } |
| OS.gtk_widget_style_get(handle, OS.focus_line_width, w, 0); |
| width += 2 * w [0]; |
| int /*long*/ list = OS.gtk_tree_view_column_get_cell_renderers (column); |
| if (list == 0) return 0; |
| int /*long*/ temp = list; |
| while (temp != 0) { |
| int /*long*/ renderer = OS.g_list_data (temp); |
| if (renderer != 0) { |
| OS.gtk_cell_renderer_get_size (renderer, handle, null, null, null, w, null); |
| width += w [0]; |
| } |
| temp = OS.g_list_next (temp); |
| } |
| OS.g_list_free (list); |
| return width; |
| } |
| |
| /** |
| * Clears the item at the given zero-relative index in the receiver. |
| * The text, icon and other attributes of the item are set to the default |
| * value. If the tree was created with the <code>SWT.VIRTUAL</code> style, |
| * these attributes are requested again as needed. |
| * |
| * @param index the index of the item to clear |
| * @param all <code>true</code> if all child items of the indexed item should be |
| * cleared recursively, and <code>false</code> otherwise |
| * |
| * @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> |
| * |
| * @see SWT#VIRTUAL |
| * @see SWT#SetData |
| * |
| * @since 3.2 |
| */ |
| public void clear(int index, boolean all) { |
| checkWidget (); |
| clear (0, index, all); |
| } |
| |
| void clear (int /*long*/ parentIter, int index, boolean all) { |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| OS.gtk_tree_model_iter_nth_child(modelHandle, iter, parentIter, index); |
| int[] value = new int[1]; |
| OS.gtk_tree_model_get (modelHandle, iter, ID_COLUMN, value, -1); |
| if (value [0] != -1) { |
| TreeItem item = items [value [0]]; |
| item.clear (); |
| } |
| if (all) clearAll (all, iter); |
| OS.g_free (iter); |
| } |
| |
| /** |
| * Clears all the items in the receiver. The text, icon and other |
| * attributes of the items are set to their default values. If the |
| * tree was created with the <code>SWT.VIRTUAL</code> style, these |
| * attributes are requested again as needed. |
| * |
| * @param all <code>true</code> if all child items should be cleared |
| * recursively, and <code>false</code> otherwise |
| * |
| * @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 SWT#VIRTUAL |
| * @see SWT#SetData |
| * |
| * @since 3.2 |
| */ |
| public void clearAll (boolean all) { |
| checkWidget (); |
| clearAll (all, 0); |
| } |
| void clearAll (boolean all, int /*long*/ parentIter) { |
| int length = OS.gtk_tree_model_iter_n_children (modelHandle, parentIter); |
| if (length == 0) return; |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| boolean valid = OS.gtk_tree_model_iter_children (modelHandle, iter, parentIter); |
| int[] value = new int[1]; |
| while (valid) { |
| OS.gtk_tree_model_get (modelHandle, iter, ID_COLUMN, value, -1); |
| if (value [0] != -1) { |
| TreeItem item = items [value [0]]; |
| item.clear (); |
| } |
| if (all) clearAll (all, iter); |
| valid = OS.gtk_tree_model_iter_next (modelHandle, iter); |
| } |
| OS.g_free (iter); |
| } |
| |
| 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 copyModel (int /*long*/ oldModel, int oldStart, int /*long*/ newModel, int newStart, int /*long*/ [] types, int /*long*/ oldParent, int /*long*/ newParent, int modelLength) { |
| int /*long*/ iter = OS.g_malloc(OS.GtkTreeIter_sizeof ()); |
| if (OS.gtk_tree_model_iter_children (oldModel, iter, oldParent)) { |
| int /*long*/ [] oldItems = new int /*long*/ [OS.gtk_tree_model_iter_n_children (oldModel, oldParent)]; |
| int oldIndex = 0; |
| do { |
| int /*long*/ newItem = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| if (newItem == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.gtk_tree_store_append (newModel, newItem, newParent); |
| int [] index = new int [1]; |
| OS.gtk_tree_model_get (oldModel, iter, ID_COLUMN, index, -1); |
| TreeItem item = null; |
| if (index [0] != -1) { |
| item = items [index [0]]; |
| if (item != null) { |
| int /*long*/ oldItem = item.handle; |
| oldItems[oldIndex++] = oldItem; |
| int /*long*/ [] ptr = new int /*long*/ [1]; |
| for (int j = 0; j < FIRST_COLUMN; j++) { |
| OS.gtk_tree_model_get (oldModel, oldItem, j, ptr, -1); |
| OS.gtk_tree_store_set (newModel, newItem, j, ptr [0], -1); |
| if (types [j] == OS.G_TYPE_STRING ()) OS.g_free ((ptr [0])); |
| } |
| for (int j= 0; j<modelLength - FIRST_COLUMN; j++) { |
| OS.gtk_tree_model_get (oldModel, oldItem, oldStart + j, ptr, -1); |
| OS.gtk_tree_store_set (newModel, newItem, newStart + j, ptr [0], -1); |
| if (types [j] == OS.G_TYPE_STRING ()) OS.g_free ((ptr [0])); |
| } |
| } |
| } else { |
| OS.gtk_tree_store_set (newModel, newItem, ID_COLUMN, -1, -1); |
| } |
| // recurse through children |
| copyModel(oldModel, oldStart, newModel, newStart, types, iter, newItem, modelLength); |
| |
| if (item!= null) { |
| item.handle = newItem; |
| } else { |
| OS.g_free (newItem); |
| } |
| } while (OS.gtk_tree_model_iter_next(oldModel, iter)); |
| for (int i = 0; i < oldItems.length; i++) { |
| int /*long*/ oldItem = oldItems [i]; |
| if (oldItem != 0) { |
| OS.gtk_tree_store_remove (oldModel, oldItem); |
| OS.g_free (oldItem); |
| } |
| } |
| } |
| OS.g_free (iter); |
| } |
| |
| void createColumn (TreeColumn column, int index) { |
| /* |
| * Bug in ATK. For some reason, ATK segments fault if |
| * the GtkTreeView has a column and does not have items. |
| * The fix is to insert the column only when an item is |
| * created. |
| */ |
| |
| int modelIndex = FIRST_COLUMN; |
| if (columnCount != 0) { |
| int modelLength = OS.gtk_tree_model_get_n_columns (modelHandle); |
| boolean [] usedColumns = new boolean [modelLength]; |
| for (int i=0; i<columnCount; i++) { |
| int columnIndex = columns [i].modelIndex; |
| for (int j = 0; j < CELL_TYPES; j++) { |
| usedColumns [columnIndex + j] = true; |
| } |
| } |
| while (modelIndex < modelLength) { |
| if (!usedColumns [modelIndex]) break; |
| modelIndex++; |
| } |
| if (modelIndex == modelLength) { |
| int /*long*/ oldModel = modelHandle; |
| int /*long*/[] types = getColumnTypes (columnCount + 4); // grow by 4 rows at a time |
| int /*long*/ newModel = OS.gtk_tree_store_newv (types.length, types); |
| if (newModel == 0) error (SWT.ERROR_NO_HANDLES); |
| copyModel (oldModel, FIRST_COLUMN, newModel, FIRST_COLUMN, types, (int /*long*/)0, (int /*long*/)0, modelLength); |
| OS.gtk_tree_view_set_model (handle, newModel); |
| OS.g_object_unref (oldModel); |
| modelHandle = newModel; |
| } |
| } |
| int /*long*/ columnHandle = OS.gtk_tree_view_column_new (); |
| if (columnHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| if (index == 0 && columnCount > 0) { |
| TreeColumn checkColumn = columns [0]; |
| createRenderers (checkColumn.handle, checkColumn.modelIndex, false, checkColumn.style); |
| } |
| createRenderers (columnHandle, modelIndex, index == 0, column == null ? 0 : column.style); |
| /* |
| * Use GTK_TREE_VIEW_COLUMN_GROW_ONLY on GTK versions < 2.3.2 |
| * because fixed_height_mode is not supported. |
| */ |
| boolean useVirtual = (style & SWT.VIRTUAL) != 0 && OS.GTK_VERSION >= OS.VERSION (2, 3, 2); |
| if (!useVirtual && columnCount == 0) { |
| OS.gtk_tree_view_column_set_sizing (columnHandle, OS.GTK_TREE_VIEW_COLUMN_GROW_ONLY); |
| } else { |
| OS.gtk_tree_view_column_set_sizing (columnHandle, OS.GTK_TREE_VIEW_COLUMN_FIXED); |
| if (columnCount != 0) OS.gtk_tree_view_column_set_visible (columnHandle, false); |
| } |
| OS.gtk_tree_view_column_set_resizable (columnHandle, true); |
| OS.gtk_tree_view_column_set_clickable (columnHandle, true); |
| OS.gtk_tree_view_column_set_min_width (columnHandle, 0); |
| OS.gtk_tree_view_insert_column (handle, columnHandle, index); |
| if (column != null) { |
| column.handle = columnHandle; |
| column.modelIndex = modelIndex; |
| } |
| /* Disable searching when using VIRTUAL */ |
| if ((style & SWT.VIRTUAL) != 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); |
| } |
| } else { |
| /* Set the search column whenever the model changes */ |
| int firstColumn = columnCount == 0 ? FIRST_COLUMN : columns [0].modelIndex; |
| OS.gtk_tree_view_set_search_column (handle, firstColumn + CELL_TEXT); |
| } |
| } |
| |
| 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); |
| int /*long*/ [] types = getColumnTypes (1); |
| 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); |
| if ((style & SWT.CHECK) != 0) { |
| checkRenderer = OS.gtk_cell_renderer_toggle_new (); |
| if (checkRenderer == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.g_object_ref (checkRenderer); |
| } |
| createColumn (null, 0); |
| 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); |
| /* Disable searching when using VIRTUAL */ |
| if ((style & SWT.VIRTUAL) != 0) { |
| /* The fixed_height_mode property only exists in GTK 2.3.2 and greater */ |
| if (OS.GTK_VERSION >= OS.VERSION (2, 3, 2)) { |
| OS.g_object_set (handle, OS.fixed_height_mode, true, 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); |
| }; |
| } |
| } |
| |
| void createItem (TreeColumn column, int index) { |
| if (!(0 <= index && index <= columnCount)) error (SWT.ERROR_INVALID_RANGE); |
| if (index == 0) { |
| // first column must be left aligned |
| column.style &= ~(SWT.LEFT | SWT.RIGHT | SWT.CENTER); |
| column.style |= SWT.LEFT; |
| } |
| if (columnCount == 0) { |
| column.handle = OS.gtk_tree_view_get_column (handle, 0); |
| OS.gtk_tree_view_column_set_sizing (column.handle, OS.GTK_TREE_VIEW_COLUMN_FIXED); |
| OS.gtk_tree_view_column_set_visible (column.handle, false); |
| column.modelIndex = FIRST_COLUMN; |
| createRenderers (column.handle, column.modelIndex, true, column.style); |
| column.customDraw = firstCustomDraw; |
| firstCustomDraw = false; |
| } else { |
| createColumn (column, index); |
| } |
| int /*long*/ boxHandle = OS.gtk_hbox_new (false, 3); |
| if (boxHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| int /*long*/ labelHandle = OS.gtk_label_new_with_mnemonic (null); |
| if (labelHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| int /*long*/ imageHandle = OS.gtk_image_new (); |
| if (imageHandle == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.gtk_container_add (boxHandle, imageHandle); |
| OS.gtk_container_add (boxHandle, labelHandle); |
| OS.gtk_widget_show (boxHandle); |
| OS.gtk_widget_show (labelHandle); |
| column.labelHandle = labelHandle; |
| column.imageHandle = imageHandle; |
| OS.gtk_tree_view_column_set_widget (column.handle, boxHandle); |
| int /*long*/ widget = OS.gtk_widget_get_parent (boxHandle); |
| while (widget != handle) { |
| if (OS.GTK_IS_BUTTON (widget)) { |
| column.buttonHandle = widget; |
| break; |
| } |
| widget = OS.gtk_widget_get_parent (widget); |
| } |
| if (columnCount == columns.length) { |
| TreeColumn [] newColumns = new TreeColumn [columns.length + 4]; |
| System.arraycopy (columns, 0, newColumns, 0, columns.length); |
| columns = newColumns; |
| } |
| System.arraycopy (columns, index, columns, index + 1, columnCount++ - index); |
| columns [index] = column; |
| if ((state & FONT) != 0) { |
| column.setFontDescription (getFontDescription ()); |
| } |
| if (columnCount >= 1) { |
| for (int i=0; i<items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null) { |
| Font [] cellFont = item.cellFont; |
| if (cellFont != null) { |
| Font [] temp = new Font [columnCount]; |
| System.arraycopy (cellFont, 0, temp, 0, index); |
| System.arraycopy (cellFont, index, temp, index+1, columnCount-index-1); |
| item.cellFont = temp; |
| } |
| } |
| } |
| } |
| } |
| |
| void createItem (TreeItem item, int /*long*/ parentIter, int index) { |
| int count = OS.gtk_tree_model_iter_n_children (modelHandle, parentIter); |
| if (index == -1) index = count; |
| if (!(0 <= index && index <= count)) error (SWT.ERROR_INVALID_RANGE); |
| item.handle = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| if (item.handle == 0) error(SWT.ERROR_NO_HANDLES); |
| /* |
| * Feature in GTK. It is much faster to append to a tree store |
| * than to insert at the end using gtk_tree_store_insert(). |
| */ |
| if (index == count) { |
| OS.gtk_tree_store_append (modelHandle, item.handle, parentIter); |
| } else { |
| OS.gtk_tree_store_insert (modelHandle, item.handle, parentIter, index); |
| } |
| int id = getId (item.handle, false); |
| items [id] = item; |
| modelChanged = true; |
| } |
| |
| void createRenderers (int /*long*/ columnHandle, int modelIndex, boolean check, int columnStyle) { |
| OS.gtk_tree_view_column_clear (columnHandle); |
| if ((style & SWT.CHECK) != 0 && check) { |
| OS.gtk_tree_view_column_pack_start (columnHandle, checkRenderer, false); |
| OS.gtk_tree_view_column_add_attribute (columnHandle, checkRenderer, OS.active, CHECKED_COLUMN); |
| /* |
| * Feature in GTK. The inconsistent property only exists in GTK 2.2.x. |
| */ |
| if (OS.GTK_VERSION >= OS.VERSION (2, 2, 0)) { |
| OS.gtk_tree_view_column_add_attribute (columnHandle, checkRenderer, OS.inconsistent, GRAYED_COLUMN); |
| } |
| /* |
| * Bug in GTK. GTK renders the background on top of the checkbox. |
| * This only happens in version 2.2.1 and earlier. The fix is not to set the background. |
| */ |
| if (OS.GTK_VERSION > OS.VERSION (2, 2, 1)) { |
| if (!ownerDraw) OS.gtk_tree_view_column_add_attribute (columnHandle, checkRenderer, OS.cell_background_gdk, BACKGROUND_COLUMN); |
| } |
| if (ownerDraw) { |
| OS.gtk_tree_view_column_set_cell_data_func (columnHandle, checkRenderer, display.cellDataProc, handle, 0); |
| OS.g_object_set_qdata (checkRenderer, Display.SWT_OBJECT_INDEX1, columnHandle); |
| } |
| } |
| int /*long*/ pixbufRenderer = ownerDraw ? OS.g_object_new (display.gtk_cell_renderer_pixbuf_get_type (), 0) : OS.gtk_cell_renderer_pixbuf_new (); |
| if (pixbufRenderer == 0) error (SWT.ERROR_NO_HANDLES); |
| int /*long*/ textRenderer = ownerDraw ? OS.g_object_new (display.gtk_cell_renderer_text_get_type (), 0) : OS.gtk_cell_renderer_text_new (); |
| if (textRenderer == 0) error (SWT.ERROR_NO_HANDLES); |
| |
| if (ownerDraw) { |
| OS.g_object_set_qdata (pixbufRenderer, Display.SWT_OBJECT_INDEX1, columnHandle); |
| OS.g_object_set_qdata (textRenderer, Display.SWT_OBJECT_INDEX1, columnHandle); |
| } |
| |
| /* |
| * Feature in GTK. When a tree view column contains only one activatable |
| * cell renderer such as a toggle renderer, mouse clicks anywhere in a cell |
| * activate that renderer. The workaround is to set a second cell renderer |
| * to be activatable. |
| */ |
| if ((style & SWT.CHECK) != 0 && check) { |
| OS.g_object_set (pixbufRenderer, OS.mode, OS.GTK_CELL_RENDERER_MODE_ACTIVATABLE, 0); |
| } |
| |
| /* Set alignment */ |
| if ((columnStyle & SWT.RIGHT) != 0) { |
| OS.g_object_set(textRenderer, OS.xalign, 1f, 0); |
| OS.gtk_tree_view_column_pack_end (columnHandle, textRenderer, true); |
| OS.gtk_tree_view_column_pack_end (columnHandle, pixbufRenderer, false); |
| OS.gtk_tree_view_column_set_alignment (columnHandle, 1f); |
| } else if ((columnStyle & SWT.CENTER) != 0) { |
| OS.g_object_set(textRenderer, OS.xalign, 0.5f, 0); |
| OS.gtk_tree_view_column_pack_start (columnHandle, pixbufRenderer, false); |
| OS.gtk_tree_view_column_pack_end (columnHandle, textRenderer, true); |
| OS.gtk_tree_view_column_set_alignment (columnHandle, 0.5f); |
| } else { |
| OS.gtk_tree_view_column_pack_start (columnHandle, pixbufRenderer, false); |
| OS.gtk_tree_view_column_pack_start (columnHandle, textRenderer, true); |
| OS.gtk_tree_view_column_set_alignment (columnHandle, 0f); |
| } |
| |
| /* Add attributes */ |
| OS.gtk_tree_view_column_add_attribute (columnHandle, pixbufRenderer, OS.pixbuf, modelIndex + CELL_PIXBUF); |
| /* |
| * Bug on GTK. Gtk renders the background on top of the pixbuf. |
| * This only happens in version 2.2.1 and earlier. The fix is not to set the background. |
| */ |
| if (OS.GTK_VERSION > OS.VERSION (2, 2, 1)) { |
| if (!ownerDraw) { |
| OS.gtk_tree_view_column_add_attribute (columnHandle, pixbufRenderer, OS.cell_background_gdk, BACKGROUND_COLUMN); |
| OS.gtk_tree_view_column_add_attribute (columnHandle, textRenderer, OS.cell_background_gdk, BACKGROUND_COLUMN); |
| } |
| } |
| OS.gtk_tree_view_column_add_attribute (columnHandle, textRenderer, OS.text, modelIndex + CELL_TEXT); |
| OS.gtk_tree_view_column_add_attribute (columnHandle, textRenderer, OS.foreground_gdk, FOREGROUND_COLUMN); |
| OS.gtk_tree_view_column_add_attribute (columnHandle, textRenderer, OS.font_desc, FONT_COLUMN); |
| |
| boolean customDraw = firstCustomDraw; |
| if (columnCount != 0) { |
| for (int i=0; i<columnCount; i++) { |
| if (columns [i].handle == columnHandle) { |
| customDraw = columns [i].customDraw; |
| break; |
| } |
| } |
| } |
| if ((style & SWT.VIRTUAL) != 0 || customDraw || ownerDraw) { |
| OS.gtk_tree_view_column_set_cell_data_func (columnHandle, textRenderer, display.cellDataProc, handle, 0); |
| OS.gtk_tree_view_column_set_cell_data_func (columnHandle, pixbufRenderer, display.cellDataProc, handle, 0); |
| } |
| } |
| |
| void createWidget (int index) { |
| super.createWidget (index); |
| items = new TreeItem [4]; |
| columns = new TreeColumn [4]; |
| columnCount = 0; |
| } |
| |
| GdkColor defaultBackground () { |
| return display.COLOR_LIST_BACKGROUND; |
| } |
| |
| GdkColor defaultForeground () { |
| return display.COLOR_LIST_FOREGROUND; |
| } |
| |
| void deregister () { |
| super.deregister (); |
| display.removeWidget (OS.gtk_tree_view_get_selection (handle)); |
| if (checkRenderer != 0) display.removeWidget (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(); |
| boolean fixColumn = showFirstColumn (); |
| 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); |
| if (fixColumn) hideFirstColumn (); |
| } |
| |
| void destroyItem (TreeColumn column) { |
| int index = 0; |
| while (index < columnCount) { |
| if (columns [index] == column) break; |
| index++; |
| } |
| if (index == columnCount) return; |
| int /*long*/ columnHandle = column.handle; |
| if (columnCount == 1) { |
| firstCustomDraw = column.customDraw; |
| } |
| System.arraycopy (columns, index + 1, columns, index, --columnCount - index); |
| columns [columnCount] = null; |
| OS.gtk_tree_view_remove_column (handle, columnHandle); |
| if (columnCount == 0) { |
| int /*long*/ oldModel = modelHandle; |
| int /*long*/[] types = getColumnTypes (1); |
| int /*long*/ newModel = OS.gtk_tree_store_newv (types.length, types); |
| if (newModel == 0) error (SWT.ERROR_NO_HANDLES); |
| copyModel(oldModel, column.modelIndex, newModel, FIRST_COLUMN, types, (int /*long*/)0, (int /*long*/)0, FIRST_COLUMN + CELL_TYPES); |
| OS.gtk_tree_view_set_model (handle, newModel); |
| OS.g_object_unref (oldModel); |
| modelHandle = newModel; |
| createColumn (null, 0); |
| |
| } else { |
| for (int i=0; i<items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null) { |
| int /*long*/ iter = item.handle; |
| int modelIndex = column.modelIndex; |
| OS.gtk_tree_store_set (modelHandle, iter, modelIndex + CELL_PIXBUF, 0, -1); |
| OS.gtk_tree_store_set (modelHandle, iter, modelIndex + CELL_TEXT, 0, -1); |
| OS.gtk_tree_store_set (modelHandle, iter, modelIndex + CELL_FOREGROUND, 0, -1); |
| OS.gtk_tree_store_set (modelHandle, iter, modelIndex + CELL_BACKGROUND, 0, -1); |
| OS.gtk_tree_store_set (modelHandle, iter, modelIndex + CELL_FONT, 0, -1); |
| |
| Font [] cellFont = item.cellFont; |
| if (cellFont != null) { |
| if (columnCount == 0) { |
| item.cellFont = null; |
| } else { |
| Font [] temp = new Font [columnCount]; |
| System.arraycopy (cellFont, 0, temp, 0, index); |
| System.arraycopy (cellFont, index + 1, temp, index, columnCount - index); |
| item.cellFont = temp; |
| } |
| } |
| } |
| } |
| if (index == 0) { |
| // first column must be left aligned and must show check box |
| TreeColumn firstColumn = columns [0]; |
| firstColumn.style &= ~(SWT.LEFT | SWT.RIGHT | SWT.CENTER); |
| firstColumn.style |= SWT.LEFT; |
| createRenderers (firstColumn.handle, firstColumn.modelIndex, true, firstColumn.style); |
| } |
| } |
| /* Disable searching when using VIRTUAL */ |
| if ((style & SWT.VIRTUAL) != 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); |
| } |
| } else { |
| /* Set the search column whenever the model changes */ |
| int firstColumn = columnCount == 0 ? FIRST_COLUMN : columns [0].modelIndex; |
| OS.gtk_tree_view_set_search_column (handle, firstColumn + CELL_TEXT); |
| } |
| } |
| |
| |
| void destroyItem (TreeItem item) { |
| /* |
| * Bug in GTK. GTK segment faults when a root tree item |
| * is destroyed when the tree is expanded and the last leaf of |
| * the root is selected. This only happens in versions earlier |
| * than 2.0.6. The fix is to collapse the tree item being destroyed |
| * when it is a root, before it is destroyed. |
| */ |
| if (OS.GTK_VERSION < OS.VERSION (2, 0, 6)) { |
| int length = OS.gtk_tree_model_iter_n_children (modelHandle, 0); |
| if (length > 0) { |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| boolean valid = OS.gtk_tree_model_iter_children (modelHandle, iter, 0); |
| while (valid) { |
| if (item.handle == iter) { |
| item.setExpanded (false); |
| break; |
| } |
| valid = OS.gtk_tree_model_iter_next (modelHandle, iter); |
| } |
| OS.g_free (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_store_remove (modelHandle, item.handle); |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| modelChanged = true; |
| } |
| |
| 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 (); |
| } |
| |
| void fixChildren (Shell newShell, Shell oldShell, Decorations newDecorations, Decorations oldDecorations, Menu [] menus) { |
| super.fixChildren (newShell, oldShell, newDecorations, oldDecorations, menus); |
| for (int i=0; i<columnCount; i++) { |
| TreeColumn column = columns [i]; |
| if (column.toolTipText != null) { |
| column.setToolTipText(oldShell, null); |
| column.setToolTipText(newShell, column.toolTipText); |
| } |
| } |
| } |
| |
| GdkColor getBackgroundColor () { |
| return getBaseColor (); |
| } |
| |
| public Rectangle getClientArea () { |
| checkWidget (); |
| forceResize (); |
| OS.gtk_widget_realize (handle); |
| int /*long*/ fixedWindow = OS.GTK_WIDGET_WINDOW (fixedHandle); |
| int /*long*/ binWindow = OS.gtk_tree_view_get_bin_window (handle); |
| int [] binX = new int [1], binY = new int [1]; |
| OS.gdk_window_get_origin (binWindow, binX, binY); |
| int [] fixedX = new int [1], fixedY = new int [1]; |
| OS.gdk_window_get_origin (fixedWindow, fixedX, fixedY); |
| int /*long*/ clientHandle = clientHandle (); |
| int width = (state & ZERO_WIDTH) != 0 ? 0 : OS.GTK_WIDGET_WIDTH (clientHandle); |
| int height = (state & ZERO_HEIGHT) != 0 ? 0 : OS.GTK_WIDGET_HEIGHT (clientHandle); |
| return new Rectangle (fixedX [0] - binX [0], fixedY [0] - binY [0], width, height); |
| } |
| |
| /** |
| * Returns the column at the given, zero-relative index in the |
| * receiver. Throws an exception if the index is out of range. |
| * Columns are returned in the order that they were created. |
| * If no <code>TreeColumn</code>s were created by the programmer, |
| * this method will throw <code>ERROR_INVALID_RANGE</code> despite |
| * the fact that a single column of data may be visible in the tree. |
| * This occurs when the programmer uses the tree like a list, adding |
| * items but never creating a column. |
| * |
| * @param index the index of the column to return |
| * @return the column 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> |
| * |
| * @see Tree#getColumnOrder() |
| * @see Tree#setColumnOrder(int[]) |
| * @see TreeColumn#getMoveable() |
| * @see TreeColumn#setMoveable(boolean) |
| * @see SWT#Move |
| * |
| * @since 3.1 |
| */ |
| public TreeColumn getColumn (int index) { |
| checkWidget(); |
| if (!(0 <= index && index < columnCount)) error (SWT.ERROR_INVALID_RANGE); |
| return columns [index]; |
| } |
| |
| /** |
| * Returns the number of columns contained in the receiver. |
| * If no <code>TreeColumn</code>s were created by the programmer, |
| * this value is zero, despite the fact that visually, one column |
| * of items may be visible. This occurs when the programmer uses |
| * the tree like a list, adding items but never creating a column. |
| * |
| * @return the number of columns |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public int getColumnCount () { |
| checkWidget(); |
| return columnCount; |
| } |
| |
| /** |
| * Returns an array of zero-relative integers that map |
| * the creation order of the receiver's items to the |
| * order in which they are currently being displayed. |
| * <p> |
| * Specifically, the indices of the returned array represent |
| * the current visual order of the items, and the contents |
| * of the array represent the creation order of the items. |
| * </p><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 current visual order of the receiver's 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> |
| * |
| * @see Tree#setColumnOrder(int[]) |
| * @see TreeColumn#getMoveable() |
| * @see TreeColumn#setMoveable(boolean) |
| * @see SWT#Move |
| * |
| * @since 3.2 |
| */ |
| public int [] getColumnOrder () { |
| checkWidget (); |
| if (columnCount == 0) return new int [0]; |
| int /*long*/ list = OS.gtk_tree_view_get_columns (handle); |
| if (list == 0) return new int [0]; |
| int i = 0, count = OS.g_list_length (list); |
| int [] order = new int [count]; |
| int /*long*/ temp = list; |
| while (temp != 0) { |
| int /*long*/ column = OS.g_list_data (temp); |
| if (column != 0) { |
| for (int j=0; j<columnCount; j++) { |
| if (columns [j].handle == column) { |
| order [i++] = j; |
| break; |
| } |
| } |
| } |
| temp = OS.g_list_next (temp); |
| } |
| OS.g_list_free (list); |
| return order; |
| } |
| |
| int /*long*/[] getColumnTypes (int columnCount) { |
| int /*long*/[] types = new int /*long*/ [FIRST_COLUMN + (columnCount * CELL_TYPES)]; |
| // per row data |
| types [ID_COLUMN] = OS.G_TYPE_INT (); |
| types [CHECKED_COLUMN] = OS.G_TYPE_BOOLEAN (); |
| types [GRAYED_COLUMN] = OS.G_TYPE_BOOLEAN (); |
| types [FOREGROUND_COLUMN] = OS.GDK_TYPE_COLOR (); |
| types [BACKGROUND_COLUMN] = OS.GDK_TYPE_COLOR (); |
| types [FONT_COLUMN] = OS.PANGO_TYPE_FONT_DESCRIPTION (); |
| // per cell data |
| for (int i=FIRST_COLUMN; i<types.length; i+=CELL_TYPES) { |
| types [i + CELL_PIXBUF] = OS.GDK_TYPE_PIXBUF (); |
| types [i + CELL_TEXT] = OS.G_TYPE_STRING (); |
| types [i + CELL_FOREGROUND] = OS.GDK_TYPE_COLOR (); |
| types [i + CELL_BACKGROUND] = OS.GDK_TYPE_COLOR (); |
| types [i + CELL_FONT] = OS.PANGO_TYPE_FONT_DESCRIPTION (); |
| } |
| return types; |
| } |
| |
| /** |
| * Returns an array of <code>TreeColumn</code>s which are the |
| * columns in the receiver. Columns are returned in the order |
| * that they were created. If no <code>TreeColumn</code>s were |
| * created by the programmer, the array is empty, despite the fact |
| * that visually, one column of items may be visible. This occurs |
| * when the programmer uses the tree like a list, adding items but |
| * never creating a column. |
| * <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 |
| * |
| * @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#getColumnOrder() |
| * @see Tree#setColumnOrder(int[]) |
| * @see TreeColumn#getMoveable() |
| * @see TreeColumn#setMoveable(boolean) |
| * @see SWT#Move |
| * |
| * @since 3.1 |
| */ |
| public TreeColumn [] getColumns () { |
| checkWidget(); |
| TreeColumn [] result = new TreeColumn [columnCount]; |
| System.arraycopy (columns, 0, result, 0, columnCount); |
| return result; |
| } |
| |
| TreeItem getFocusItem () { |
| int /*long*/ [] path = new int /*long*/ [1]; |
| OS.gtk_tree_view_get_cursor (handle, path, null); |
| if (path [0] == 0) return null; |
| TreeItem item = null; |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| if (OS.gtk_tree_model_get_iter (modelHandle, iter, path [0])) { |
| int [] index = new int [1]; |
| OS.gtk_tree_model_get (modelHandle, iter, ID_COLUMN, index, -1); |
| if (index [0] != -1) item = items [index [0]]; //TODO should we be creating this item when index is -1? |
| } |
| OS.g_free (iter); |
| OS.gtk_tree_path_free (path [0]); |
| return item; |
| } |
| |
| GdkColor getForegroundColor () { |
| return getTextColor (); |
| } |
| |
| /** |
| * Returns the width in pixels of a grid line. |
| * |
| * @return the width of a grid line in pixels |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public int getGridLineWidth () { |
| checkWidget(); |
| return 0; |
| } |
| |
| /** |
| * Returns the height of the receiver's header |
| * |
| * @return the height of the header or zero if the header is not visible |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public int getHeaderHeight () { |
| checkWidget (); |
| if (!OS.gtk_tree_view_get_headers_visible (handle)) return 0; |
| if (columnCount > 0) { |
| GtkRequisition requisition = new GtkRequisition (); |
| int height = 0; |
| for (int i=0; i<columnCount; i++) { |
| int /*long*/ buttonHandle = columns [i].buttonHandle; |
| if (buttonHandle != 0) { |
| OS.gtk_widget_size_request (buttonHandle, requisition); |
| height = Math.max (height, requisition.height); |
| } |
| } |
| return height; |
| } |
| OS.gtk_widget_realize (handle); |
| int /*long*/ fixedWindow = OS.GTK_WIDGET_WINDOW (fixedHandle); |
| int /*long*/ binWindow = OS.gtk_tree_view_get_bin_window (handle); |
| int [] binY = new int [1]; |
| OS.gdk_window_get_origin (binWindow, null, binY); |
| int [] fixedY = new int [1]; |
| OS.gdk_window_get_origin (fixedWindow, null, fixedY); |
| return binY [0] - fixedY [0]; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver's header is visible, |
| * and <code>false</code> otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, this method |
| * may still indicate that it is considered visible even though |
| * it may not actually be showing. |
| * </p> |
| * |
| * @return the receiver's header's visibility state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public boolean getHeaderVisible () { |
| checkWidget(); |
| return OS.gtk_tree_view_get_headers_visible (handle); |
| } |
| |
| /** |
| * 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> |
| * |
| * @since 3.1 |
| */ |
| public TreeItem getItem (int index) { |
| checkWidget(); |
| if (!(0 <= index && index < OS.gtk_tree_model_iter_n_children (modelHandle, 0))) { |
| error (SWT.ERROR_INVALID_RANGE); |
| } |
| return _getItem (0, index); |
| } |
| |
| /** |
| * 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. |
| * <p> |
| * The item that is returned represents an item that could be selected by the user. |
| * For example, if selection only occurs in items in the first column, then null is |
| * returned if the point is outside of the item. |
| * Note that the SWT.FULL_SELECTION style hint, which specifies the selection policy, |
| * determines the extent of the selection. |
| * </p> |
| * |
| * @param point the point used to locate the item |
| * @return the item at the given point, or null if the point is not in a selectable item |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the point is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public TreeItem getItem (Point point) { |
| checkWidget (); |
| if (point == null) error (SWT.ERROR_NULL_ARGUMENT); |
| int /*long*/ [] path = new int /*long*/ [1]; |
| OS.gtk_widget_realize (handle); |
| int /*long*/ [] columnHandle = new int /*long*/ [1]; |
| if (!OS.gtk_tree_view_get_path_at_pos (handle, point.x, point.y, path, columnHandle, null, null)) return null; |
| if (path [0] == 0) return null; |
| TreeItem item = null; |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| if (OS.gtk_tree_model_get_iter (modelHandle, iter, path [0])) { |
| boolean overExpander = false; |
| if (OS.gtk_tree_view_get_expander_column (handle) == columnHandle [0]) { |
| int [] buffer = new int [1]; |
| GdkRectangle rect = new GdkRectangle (); |
| OS.gtk_tree_view_get_cell_area (handle, path [0], columnHandle [0], rect); |
| if (OS.GTK_VERSION < OS.VERSION (2, 8, 18)) { |
| OS.gtk_widget_style_get (handle, OS.expander_size, buffer, 0); |
| int expanderSize = buffer [0] + TreeItem.EXPANDER_EXTRA_PADDING; |
| overExpander = point.x < rect.x + expanderSize; |
| } else { |
| overExpander = point.x < rect.x; |
| } |
| } |
| if (!overExpander) { |
| item = _getItem (iter); |
| } |
| } |
| OS.g_free (iter); |
| OS.gtk_tree_path_free (path [0]); |
| return item; |
| } |
| |
| /** |
| * 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 (); |
| int itemCount = OS.gtk_tree_model_iter_n_children (modelHandle, 0); |
| if (itemCount == 0) { |
| int /*long*/ column = OS.gtk_tree_view_get_column (handle, 0); |
| int [] w = new int [1], h = new int [1]; |
| ignoreSize = true; |
| OS.gtk_tree_view_column_cell_get_size (column, null, null, null, w, h); |
| ignoreSize = false; |
| return h [0]; |
| } else { |
| int height = 0; |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| OS.gtk_tree_model_get_iter_first (modelHandle, iter); |
| int columnCount = Math.max (1, this.columnCount); |
| for (int i=0; i<columnCount; i++) { |
| int /*long*/ column = OS.gtk_tree_view_get_column (handle, i); |
| 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); |
| height = Math.max (height, h [0]); |
| } |
| OS.g_free (iter); |
| return height; |
| } |
| } |
| |
| /** |
| * Returns a (possibly empty) array 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 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 /*long*/ parent) { |
| int length = OS.gtk_tree_model_iter_n_children (modelHandle, parent); |
| TreeItem[] result = new TreeItem [length]; |
| if (length == 0) return result; |
| if ((style & SWT.VIRTUAL) != 0) { |
| for (int i=0; i<length; i++) { |
| result [i] = _getItem (parent, i); |
| } |
| } else { |
| int i = 0; |
| int[] index = new int [1]; |
| int /*long*/ 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, ID_COLUMN, index, -1); |
| result [i++] = items [index [0]]; |
| valid = OS.gtk_tree_model_iter_next (modelHandle, iter); |
| } |
| OS.g_free (iter); |
| } |
| return result; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver's lines are visible, |
| * and <code>false</code> otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, this method |
| * may still indicate that it is considered visible even though |
| * it may not actually be showing. |
| * </p> |
| * |
| * @return the visibility state of the lines |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public boolean getLinesVisible() { |
| checkWidget(); |
| return OS.gtk_tree_view_get_rules_hint (handle); |
| } |
| |
| /** |
| * 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; |
| } |
| |
| int /*long*/ getPixbufRenderer (int /*long*/ column) { |
| int /*long*/ list = OS.gtk_tree_view_column_get_cell_renderers (column); |
| if (list == 0) return 0; |
| int count = OS.g_list_length (list); |
| int /*long*/ pixbufRenderer = 0; |
| int i = 0; |
| while (i < count) { |
| int /*long*/ renderer = OS.g_list_nth_data (list, i); |
| if (OS.GTK_IS_CELL_RENDERER_PIXBUF (renderer)) { |
| pixbufRenderer = renderer; |
| break; |
| } |
| i++; |
| } |
| OS.g_list_free (list); |
| return pixbufRenderer; |
| } |
| |
| /** |
| * Returns an array of <code>TreeItem</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 TreeItem[] getSelection () { |
| 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 = new int [items.length]; |
| 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; |
| } |
| /* |
| * 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); |
| TreeItem [] treeSelection = new TreeItem [count]; |
| int length = 0; |
| for (int i=0; i<count; i++) { |
| int /*long*/ data = OS.g_list_nth_data (list, i); |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| if (OS.gtk_tree_model_get_iter (modelHandle, iter, data)) { |
| treeSelection [length] = _getItem (iter); |
| length++; |
| } |
| OS.g_free (iter); |
| } |
| OS.g_list_free (list); |
| if (length < count) { |
| TreeItem [] temp = new TreeItem [length]; |
| System.arraycopy(treeSelection, 0, temp, 0, length); |
| treeSelection = temp; |
| } |
| return treeSelection; |
| } |
| return new TreeItem [0]; |
| } |
| |
| /** |
| * 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 column which shows the sort indicator for |
| * the receiver. The value may be null if no column shows |
| * the sort indicator. |
| * |
| * @return the sort indicator |
| * |
| * @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 #setSortColumn(TreeColumn) |
| * |
| * @since 3.2 |
| */ |
| public TreeColumn getSortColumn () { |
| checkWidget (); |
| return sortColumn; |
| } |
| |
| /** |
| * Returns the direction of the sort indicator for the receiver. |
| * The value will be one of <code>UP</code>, <code>DOWN</code> |
| * or <code>NONE</code>. |
| * |
| * @return the sort direction |
| * |
| * @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 #setSortDirection(int) |
| * |
| * @since 3.2 |
| */ |
| public int getSortDirection () { |
| checkWidget (); |
| return sortDirection; |
| } |
| |
| int /*long*/ getTextRenderer (int /*long*/ column) { |
| int /*long*/ list = OS.gtk_tree_view_column_get_cell_renderers (column); |
| if (list == 0) return 0; |
| int count = OS.g_list_length (list); |
| int /*long*/ textRenderer = 0; |
| int i = 0; |
| while (i < count) { |
| int /*long*/ renderer = OS.g_list_nth_data (list, i); |
| if (OS.GTK_IS_CELL_RENDERER_TEXT (renderer)) { |
| textRenderer = renderer; |
| break; |
| } |
| i++; |
| } |
| OS.g_list_free (list); |
| return textRenderer; |
| } |
| |
| /** |
| * Returns the item which is currently at the top of the receiver. |
| * This item can change when items are expanded, collapsed, scrolled |
| * or new items are added or removed. |
| * |
| * @return the item at the top of 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> |
| * |
| * @since 2.1 |
| */ |
| public TreeItem getTopItem () { |
| 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 null; |
| if (path [0] == 0) return null; |
| TreeItem item = null; |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof()); |
| if (OS.gtk_tree_model_get_iter (modelHandle, iter, path [0])) { |
| item = _getItem (iter); |
| } |
| OS.g_free (iter); |
| OS.gtk_tree_path_free (path [0]); |
| return item; |
| } |
| |
| int /*long*/ gtk_button_press_event (int /*long*/ widget, int /*long*/ event) { |
| GdkEventButton gdkEvent = new GdkEventButton (); |
| OS.memmove (gdkEvent, event, GdkEventButton.sizeof); |
| if (gdkEvent.window != OS.gtk_tree_view_get_bin_window (handle)) return 0; |
| int /*long*/ result = super.gtk_button_press_event (widget, event); |
| if (result != 0) return result; |
| /* |
| * Feature in GTK. In a multi-select tree 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. |
| */ |
| 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_button_release_event (int /*long*/ widget, int /*long*/ event) { |
| int /*long*/ window = OS.GDK_EVENT_WINDOW (event); |
| if (window != OS.gtk_tree_view_get_bin_window (handle)) return 0; |
| return super.gtk_button_release_event (widget, event); |
| } |
| |
| int /*long*/ gtk_changed (int /*long*/ widget) { |
| TreeItem item = getFocusItem (); |
| if (item != null) { |
| Event event = new Event (); |
| event.item = item; |
| postEvent (SWT.Selection, event); |
| } |
| return 0; |
| } |
| |
| int /*long*/ gtk_expand_collapse_cursor_row (int /*long*/ widget, int /*long*/ logical, int /*long*/ expand, int /*long*/ open_all) { |
| // FIXME - this flag is never cleared. It should be cleared when the expand all operation completes. |
| if (expand != 0 && open_all != 0) expandAll = true; |
| return 0; |
| } |
| |
| int /*long*/ gtk_key_press_event (int /*long*/ widget, int /*long*/ eventPtr) { |
| int /*long*/ result = super.gtk_key_press_event (widget, eventPtr); |
| 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, 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 /*long*/ gtk_motion_notify_event (int /*long*/ widget, int /*long*/ event) { |
| int /*long*/ window = OS.GDK_EVENT_WINDOW (event); |
| if (window != OS.gtk_tree_view_get_bin_window (handle)) return 0; |
| return super.gtk_motion_notify_event (widget, event); |
| } |
| |
| 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) { |
| if (path == 0) return 0; |
| TreeItem item = null; |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| if (OS.gtk_tree_model_get_iter (modelHandle, iter, path)) { |
| int [] index = new int [1]; |
| OS.gtk_tree_model_get (modelHandle, iter, ID_COLUMN, index, -1); |
| item = items [index [0]]; |
| } |
| OS.g_free (iter); |
| Event event = new Event (); |
| event.item = item; |
| postEvent (SWT.DefaultSelection, event); |
| return 0; |
| } |
| |
| int /*long*/ gtk_test_collapse_row (int /*long*/ tree, int /*long*/ iter, int /*long*/ path) { |
| int [] index = new int [1]; |
| OS.gtk_tree_model_get (modelHandle, iter, ID_COLUMN, index, -1); |
| TreeItem item = items [index [0]]; |
| Event event = new Event (); |
| event.item = item; |
| boolean oldModelChanged = modelChanged; |
| modelChanged = false; |
| sendEvent (SWT.Collapse, event); |
| /* |
| * Bug in GTK. Collapsing the target row during the test_collapse_row |
| * handler will cause a segmentation fault if the animation code is allowed |
| * to run. The fix is to block the animation if the row is already |
| * collapsed. |
| */ |
| boolean changed = modelChanged || !OS.gtk_tree_view_row_expanded (handle, path); |
| modelChanged = oldModelChanged; |
| if (isDisposed () || item.isDisposed ()) return 1; |
| /* |
| * Bug in GTK. Expanding or collapsing a row which has no more |
| * children causes the model state to become invalid, causing |
| * GTK to give warnings and behave strangely. Other changes to |
| * the model can cause expansion to fail when using the multiple |
| * expansion keys (such as *). The fix is to stop the expansion |
| * if there are model changes. |
| * |
| * Note: This callback must return 0 for the collapsing |
| * animation to occur. |
| */ |
| if (changed) { |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, TEST_COLLAPSE_ROW); |
| OS.gtk_tree_view_collapse_row (handle, path); |
| OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, TEST_COLLAPSE_ROW); |
| return 1; |
| } |
| return 0; |
| } |
| |
| int /*long*/ gtk_test_expand_row (int /*long*/ tree, int /*long*/ iter, int /*long*/ path) { |
| int [] index = new int [1]; |
| OS.gtk_tree_model_get (modelHandle, iter, ID_COLUMN, index, -1); |
| TreeItem item = items [index [0]]; |
| Event event = new Event (); |
| event.item = item; |
| boolean oldModelChanged = modelChanged; |
| modelChanged = false; |
| sendEvent (SWT.Expand, event); |
| /* |
| * Bug in GTK. Expanding the target row during the test_expand_row |
| * handler will cause a segmentation fault if the animation code is allowed |
| * to run. The fix is to block the animation if the row is already |
| * expanded. |
| */ |
| boolean changed = modelChanged || OS.gtk_tree_view_row_expanded (handle, path); |
| modelChanged = oldModelChanged; |
| if (isDisposed () || item.isDisposed ()) return 1; |
| /* |
| * Bug in GTK. Expanding or collapsing a row which has no more |
| * children causes the model state to become invalid, causing |
| * GTK to give warnings and behave strangely. Other changes to |
| * the model can cause expansion to fail when using the multiple |
| * expansion keys (such as *). The fix is to stop the expansion |
| * if there are model changes. |
| * |
| * Bug in GTK. test-expand-row does not get called for each row |
| * in an expand all operation. The fix is to block the initial |
| * expansion and only expand a single level. |
| * |
| * Note: This callback must return 0 for the collapsing |
| * animation to occur. |
| */ |
| if (changed || expandAll) { |
| OS.g_signal_handlers_block_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, TEST_EXPAND_ROW); |
| 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, TEST_EXPAND_ROW); |
| return 1; |
| } |
| return 0; |
| } |
| |
| int /*long*/ gtk_toggled (int /*long*/ renderer, int /*long*/ pathStr) { |
| int /*long*/ path = OS.gtk_tree_path_new_from_string (pathStr); |
| if (path == 0) return 0; |
| TreeItem item = null; |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof()); |
| if (OS.gtk_tree_model_get_iter (modelHandle, iter, path)) { |
| item = _getItem (iter); |
| } |
| OS.g_free (iter); |
| OS.gtk_tree_path_free (path); |
| if (item != null) { |
| item.setChecked (!item.getChecked ()); |
| Event event = new Event (); |
| event.detail = SWT.CHECK; |
| event.item = item; |
| postEvent (SWT.Selection, event); |
| } |
| return 0; |
| } |
| |
| void gtk_widget_size_request (int /*long*/ widget, GtkRequisition requisition) { |
| /* |
| * Bug in GTK. For some reason, gtk_widget_size_request() fails |
| * to include the height of the tree view items when there are |
| * no columns visible. The fix is to temporarily make one column |
| * visible. |
| */ |
| if (columnCount == 0) { |
| super.gtk_widget_size_request (widget, requisition); |
| return; |
| } |
| int /*long*/ columns = OS.gtk_tree_view_get_columns (handle), list = columns; |
| boolean fixVisible = columns != 0; |
| while (list != 0) { |
| int /*long*/ column = OS.g_list_data (list); |
| if (OS.gtk_tree_view_column_get_visible (column)) { |
| fixVisible = false; |
| break; |
| } |
| list = OS.g_list_next (list); |
| } |
| int /*long*/ columnHandle = 0; |
| if (fixVisible) { |
| columnHandle = OS.g_list_data (columns); |
| OS.gtk_tree_view_column_set_visible (columnHandle, true); |
| } |
| super.gtk_widget_size_request (widget, requisition); |
| if (fixVisible) { |
| OS.gtk_tree_view_column_set_visible (columnHandle, false); |
| } |
| if (columns != 0) OS.g_list_free (columns); |
| } |
| |
| void hideFirstColumn () { |
| int /*long*/ firstColumn = OS.gtk_tree_view_get_column (handle, 0); |
| OS.gtk_tree_view_column_set_visible (firstColumn, false); |
| } |
| |
| 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); |
| OS.g_signal_connect_closure (handle, OS.test_expand_row, display.closures [TEST_EXPAND_ROW], false); |
| OS.g_signal_connect_closure (handle, OS.test_collapse_row, display.closures [TEST_COLLAPSE_ROW], false); |
| OS.g_signal_connect_closure (handle, OS.expand_collapse_cursor_row, display.closures [EXPAND_COLLAPSE_CURSOR_ROW], false); |
| if (checkRenderer != 0) { |
| OS.g_signal_connect_closure (checkRenderer, OS.toggled, display.closures [TOGGLED], false); |
| } |
| } |
| |
| /** |
| * Searches the receiver's list starting at the first column |
| * (index 0) until a column is found that is equal to the |
| * argument, and returns the index of that column. If no column |
| * is found, returns -1. |
| * |
| * @param column the search column |
| * @return the index of the column |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the column 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> |
| * |
| * @since 3.1 |
| */ |
| public int indexOf (TreeColumn column) { |
| checkWidget(); |
| if (column == null) error (SWT.ERROR_NULL_ARGUMENT); |
| for (int i=0; i<columnCount; i++) { |
| if (columns [i] == column) return i; |
| } |
| return -1; |
| } |
| |
| /** |
| * Searches the receiver's list starting at the first item |
| * (index 0) until an item is found that is equal to the |
| * argument, and returns the index of that item. If no item |
| * is found, returns -1. |
| * |
| * @param item the search item |
| * @return the index of the item |
| * |
| * @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> |
| * |
| * @since 3.1 |
| */ |
| public int indexOf (TreeItem item) { |
| checkWidget(); |
| if (item == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (item.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| int index = -1; |
| int /*long*/ path = OS.gtk_tree_model_get_path (modelHandle, item.handle); |
| int depth = OS.gtk_tree_path_get_depth (path); |
| if (depth == 1) { |
| int /*long*/ indices = OS.gtk_tree_path_get_indices (path); |
| if (indices != 0) { |
| int[] temp = new int[1]; |
| OS.memmove (temp, indices, 4); |
| index = temp[0]; |
| } |
| } |
| OS.gtk_tree_path_free (path); |
| return index; |
| } |
| |
| boolean mnemonicHit (char key) { |
| for (int i=0; i<columnCount; i++) { |
| int /*long*/ labelHandle = columns [i].labelHandle; |
| if (labelHandle != 0 && mnemonicHit (labelHandle, key)) return true; |
| } |
| return false; |
| } |
| |
| boolean mnemonicMatch (char key) { |
| for (int i=0; i<columnCount; i++) { |
| int /*long*/ labelHandle = columns [i].labelHandle; |
| if (labelHandle != 0 && mnemonicMatch (labelHandle, key)) return true; |
| } |
| return false; |
| } |
| |
| int /*long*/ paintWindow () { |
| OS.gtk_widget_realize (handle); |
| return OS.gtk_tree_view_get_bin_window (handle); |
| } |
| |
| void recreateRenderers () { |
| if (checkRenderer != 0) { |
| display.removeWidget (checkRenderer); |
| OS.g_object_unref (checkRenderer); |
| checkRenderer = ownerDraw ? OS.g_object_new (display.gtk_cell_renderer_toggle_get_type(), 0) : OS.gtk_cell_renderer_toggle_new (); |
| if (checkRenderer == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.g_object_ref (checkRenderer); |
| display.addWidget (checkRenderer, this); |
| OS.g_signal_connect_closure (checkRenderer, OS.toggled, display.closures [TOGGLED], false); |
| } |
| if (columnCount == 0) { |
| createRenderers (OS.gtk_tree_view_get_column (handle, 0), Tree.FIRST_COLUMN, true, 0); |
| } else { |
| for (int i = 0; i < columnCount; i++) { |
| TreeColumn column = columns [i]; |
| createRenderers (column.handle, column.modelIndex, i == 0, column.style); |
| } |
| } |
| } |
| |
| void redrawBackgroundImage () { |
| Control control = findBackgroundControl (); |
| if (control != null && control.backgroundImage != null) { |
| redrawWidget (0, 0, 0, 0, true, false, false); |
| } |
| } |
| |
| void register () { |
| super.register (); |
| display.addWidget (OS.gtk_tree_view_get_selection (handle), this); |
| if (checkRenderer != 0) display.addWidget (checkRenderer, this); |
| } |
| |
| void releaseItem (TreeItem item, boolean release) { |
| int [] index = new int [1]; |
| OS.gtk_tree_model_get (modelHandle, item.handle, ID_COLUMN, index, -1); |
| if (index [0] == -1) return; |
| if (release) item.release (false); |
| items [index [0]] = null; |
| } |
| |
| void releaseItems (int /*long*/ parentIter) { |
| int[] index = new int [1]; |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| boolean valid = OS.gtk_tree_model_iter_children (modelHandle, iter, parentIter); |
| while (valid) { |
| releaseItems (iter); |
| if (!isDisposed ()) { |
| OS.gtk_tree_model_get (modelHandle, iter, ID_COLUMN, index, -1); |
| if (index [0] != -1) { |
| TreeItem item = items [index [0]]; |
| if (item != null) releaseItem (item, true); |
| } |
| } |
| valid = OS.gtk_tree_model_iter_next (modelHandle, iter); |
| } |
| OS.g_free (iter); |
| } |
| |
| void releaseChildren (boolean destroy) { |
| if (items != null) { |
| for (int i=0; i<items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null && !item.isDisposed ()) { |
| item.release (false); |
| } |
| } |
| items = null; |
| } |
| if (columns != null) { |
| for (int i=0; i<columnCount; i++) { |
| TreeColumn column = columns [i]; |
| if (column != null && !column.isDisposed ()) { |
| column.release (false); |
| } |
| } |
| columns = null; |
| } |
| super.releaseChildren (destroy); |
| } |
| |
| void releaseWidget () { |
| super.releaseWidget (); |
| if (modelHandle != 0) OS.g_object_unref (modelHandle); |
| modelHandle = 0; |
| if (checkRenderer != 0) OS.g_object_unref (checkRenderer); |
| checkRenderer = 0; |
| if (imageList != null) imageList.dispose (); |
| if (headerImageList != null) headerImageList.dispose (); |
| imageList = headerImageList = null; |
| currentItem = null; |
| } |
| |
| void remove (int /*long*/ parentIter, int start, int end) { |
| if (start > end) return; |
| int itemCount = OS.gtk_tree_model_iter_n_children (modelHandle, parentIter); |
| if (!(0 <= start && start <= end && end < itemCount)) { |
| error (SWT.ERROR_INVALID_RANGE); |
| } |
| int /*long*/ selection = OS.gtk_tree_view_get_selection (handle); |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| int index = start; |
| for (int i = start; i <= end; i++) { |
| OS.gtk_tree_model_iter_nth_child (modelHandle, iter, parentIter, index); |
| int[] value = new int[1]; |
| OS.gtk_tree_model_get (modelHandle, iter, ID_COLUMN, value, -1); |
| TreeItem item = value [0] != -1 ? items [value [0]] : null; |
| if (item != null && !item.isDisposed ()) { |
| item.dispose (); |
| } else { |
| OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| OS.gtk_tree_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 all of the items from 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 removeAll () { |
| checkWidget (); |
| for (int i=0; i<items.length; i++) { |
| TreeItem item = items [i]; |
| if (item != null && !item.isDisposed ()) item.release (false); |
| } |
| items = new TreeItem[4]; |
| /* |
| * Bug in GTK. In version 2.3.2, when the property fixed-height-mode |
| * is set and there are items in the list, OS.gtk_tree_store_clear() |
| * segment faults. The fix is to create a new empty model instead. |
| */ |
| 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); |
| /* |
| * Bug in GTK. In version 2.8, when gtk_tree_view_set_model() is called, GTK |
| * does not remove the timer used to show animation when expanding a node. This |
| * can cause two possible crashes. The first one happens when the timer expires and |
| * it accesses the expanding node which has been already destroyed. The second one |
| * happens if a new item is created and destroyed before the timer expires. The fix |
| * is to remove the timer by disposing the first item in the tree. |
| */ |
| if (OS.GTK_VERSION < OS.VERSION(2, 10, 0)) { |
| if (OS.gtk_tree_model_iter_n_children (modelHandle, 0) != 0) { |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| OS.gtk_tree_model_iter_nth_child (modelHandle, iter, 0, 0); |
| OS.gtk_tree_store_remove (modelHandle, iter); |
| OS.g_free (iter); |
| } |
| } |
| // TODO verify if true for tree store |
| //OS.gtk_tree_store_clear (modelHandle); |
| int /*long*/ oldModel = modelHandle; |
| int /*long*/[] types = getColumnTypes (Math.max (1,columnCount)); |
| int /*long*/ newModel = OS.gtk_tree_store_newv (types.length, types); |
| if (newModel == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.gtk_tree_view_set_model (handle, newModel); |
| OS.g_object_unref (oldModel); |
| modelHandle = newModel; |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| |
| /* Disable searching when using VIRTUAL */ |
| if ((style & SWT.VIRTUAL) != 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); |
| } |
| } else { |
| /* Set the search column whenever the model changes */ |
| int firstColumn = columnCount == 0 ? FIRST_COLUMN : columns [0].modelIndex; |
| OS.gtk_tree_view_set_search_column (handle, firstColumn + CELL_TEXT); |
| } |
| } |
| |
| /** |
| * 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); |
| 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); |
| } |
| |
| int /*long*/ rendererGetSizeProc (int /*long*/ cell, int /*long*/ widget, int /*long*/ cell_area, int /*long*/ x_offset, int /*long*/ y_offset, int /*long*/ width, int /*long*/ height) { |
| int /*long*/ g_class = OS.g_type_class_peek_parent (OS.G_OBJECT_GET_CLASS (cell)); |
| GtkCellRendererClass klass = new GtkCellRendererClass (); |
| OS.memmove (klass, g_class); |
| int /*long*/ result = OS.call (klass.get_size, cell, handle, cell_area, x_offset, y_offset, width, height); |
| if (!ignoreSize && OS.GTK_IS_CELL_RENDERER_TEXT (cell)) { |
| int /*long*/ iter = OS.g_object_get_qdata (cell, Display.SWT_OBJECT_INDEX2); |
| TreeItem item = null; |
| if (iter != 0) item = _getItem (iter); |
| if (item != null) { |
| int columnIndex = 0; |
| if (columnCount > 0) { |
| int /*long*/ columnHandle = OS.g_object_get_qdata (cell, Display.SWT_OBJECT_INDEX1); |
| for (int i = 0; i < columnCount; i++) { |
| if (columns [i].handle == columnHandle) { |
| columnIndex = i; |
| break; |
| } |
| } |
| } |
| if (hooks (SWT.MeasureItem)) { |
| int [] contentWidth = new int [1], contentHeight = new int [1]; |
| if (width != 0) OS.memmove (contentWidth, width, 4); |
| if (height != 0) OS.memmove (contentHeight, height, 4); |
| Image image = item.getImage (columnIndex); |
| int imageWidth = 0; |
| if (image != null) { |
| Rectangle bounds = image.getBounds (); |
| imageWidth = bounds.width; |
| } |
| contentWidth [0] += imageWidth; |
| GC gc = new GC (this); |
| gc.setFont (item.getFont (columnIndex)); |
| Event event = new Event (); |
| event.item = item; |
| event.index = columnIndex; |
| event.gc = gc; |
| event.width = contentWidth [0]; |
| event.height = contentHeight [0]; |
| sendEvent (SWT.MeasureItem, event); |
| gc.dispose (); |
| contentWidth [0] = event.width - imageWidth; |
| contentHeight [0] = event.height; |
| if (width != 0) OS.memmove (width, contentWidth, 4); |
| if (height != 0) OS.memmove (height, contentHeight, 4); |
| } |
| } |
| } |
| return result; |
| } |
| |
| int /*long*/ rendererRenderProc (int /*long*/ cell, int /*long*/ window, int /*long*/ widget, int /*long*/ background_area, int /*long*/ cell_area, int /*long*/ expose_area, int /*long*/ flags) { |
| TreeItem item = null; |
| int /*long*/ iter = OS.g_object_get_qdata (cell, Display.SWT_OBJECT_INDEX2); |
| if (iter != 0) item = _getItem (iter); |
| int /*long*/ columnHandle = OS.g_object_get_qdata (cell, Display.SWT_OBJECT_INDEX1); |
| int columnIndex = 0; |
| if (columnCount > 0) { |
| for (int i = 0; i < columnCount; i++) { |
| if (columns [i].handle == columnHandle) { |
| columnIndex = i; |
| break; |
| } |
| } |
| } |
| if (item != null) { |
| if (OS.GTK_IS_CELL_RENDERER_TOGGLE (cell) || (OS.GTK_IS_CELL_RENDERER_PIXBUF (cell) && (columnIndex != 0 || (style & SWT.CHECK) == 0))) { |
| drawFlags = (int)/*64*/flags; |
| drawState = SWT.FOREGROUND; |
| int /*long*/ [] ptr = new int /*long*/ [1]; |
| OS.gtk_tree_model_get (modelHandle, item.handle, Tree.BACKGROUND_COLUMN, ptr, -1); |
| if (ptr [0] == 0) { |
| int modelIndex = columnCount == 0 ? Tree.FIRST_COLUMN : columns [columnIndex].modelIndex; |
| OS.gtk_tree_model_get (modelHandle, item.handle, modelIndex + Tree.CELL_BACKGROUND, ptr, -1); |
| } |
| if (ptr [0] != 0) drawState |= SWT.BACKGROUND; |
| if ((flags & OS.GTK_CELL_RENDERER_SELECTED) != 0) drawState |= SWT.SELECTED; |
| if ((flags & OS.GTK_CELL_RENDERER_FOCUSED) != 0) drawState |= SWT.FOCUSED; |
| |
| GdkRectangle rect = new GdkRectangle (); |
| int /*long*/ path = OS.gtk_tree_model_get_path (modelHandle, iter); |
| OS.gtk_tree_view_get_background_area (handle, path, columnHandle, rect); |
| OS.gtk_tree_path_free (path); |
| |
| if ((drawState & SWT.SELECTED) == 0) { |
| Control control = findBackgroundControl (); |
| if (control != null && control.backgroundImage != null) { |
| OS.gdk_window_clear_area (window, rect.x, rect.y, rect.width, rect.height); |
| } |
| } |
| |
| if (hooks (SWT.EraseItem)) { |
| boolean wasSelected = false; |
| if ((drawState & SWT.SELECTED) != 0) { |
| wasSelected = true; |
| OS.gdk_window_clear_area (window, rect.x, rect.y, rect.width, rect.height); |
| } |
| GC gc = new GC (this); |
| if ((drawState & SWT.SELECTED) != 0) { |
| gc.setBackground (display.getSystemColor (SWT.COLOR_LIST_SELECTION)); |
| gc.setForeground (display.getSystemColor (SWT.COLOR_LIST_SELECTION_TEXT)); |
| } else { |
| gc.setBackground (item.getBackground (columnIndex)); |
| gc.setForeground (item.getForeground (columnIndex)); |
| } |
| gc.setFont (item.getFont (columnIndex)); |
| gc.setClipping (rect.x, rect.y, rect.width, rect.height); |
| Event event = new Event (); |
| event.item = item; |
| event.index = columnIndex; |
| event.gc = gc; |
| event.x = rect.x; |
| event.y = rect.y; |
| event.width = rect.width; |
| event.height = rect.height; |
| event.detail = drawState; |
| sendEvent (SWT.EraseItem, event); |
| drawForeground = null; |
| drawState = event.doit ? event.detail : 0; |
| drawFlags &= ~(OS.GTK_CELL_RENDERER_FOCUSED | OS.GTK_CELL_RENDERER_SELECTED); |
| if ((drawState & SWT.SELECTED) != 0) drawFlags |= OS.GTK_CELL_RENDERER_SELECTED; |
| if ((drawState & SWT.FOCUSED) != 0) drawFlags |= OS.GTK_CELL_RENDERER_FOCUSED; |
| if ((drawState & SWT.SELECTED) != 0) { |
| int /*long*/ style = OS.gtk_widget_get_style (widget); |
| //TODO - parity and sorted |
| byte[] detail = Converter.wcsToMbcs (null, "cell_odd", true); |
| OS.gtk_paint_flat_box (style, window, OS.GTK_STATE_SELECTED, OS.GTK_SHADOW_NONE, rect, widget, detail, rect.x, rect.y, rect.width, rect.height); |
| } else { |
| if (wasSelected) drawForeground = gc.getForeground ().handle; |
| } |
| gc.dispose(); |
| } |
| } |
| } |
| int /*long*/ result = 0; |
| if ((drawState & SWT.BACKGROUND) != 0 && (drawState & SWT.SELECTED) == 0) { |
| GC gc = new GC (this); |
| gc.setBackground (item.getBackground (columnIndex)); |
| GdkRectangle rect = new GdkRectangle (); |
| OS.memmove (rect, background_area, GdkRectangle.sizeof); |
| gc.fillRectangle (rect.x, rect.y, rect.width, rect.height); |
| gc.dispose (); |
| } |
| if ((drawState & SWT.FOREGROUND) != 0 || OS.GTK_IS_CELL_RENDERER_TOGGLE (cell)) { |
| int /*long*/ g_class = OS.g_type_class_peek_parent (OS.G_OBJECT_GET_CLASS (cell)); |
| GtkCellRendererClass klass = new GtkCellRendererClass (); |
| OS.memmove (klass, g_class); |
| if (drawForeground != null && OS.GTK_IS_CELL_RENDERER_TEXT (cell)) { |
| OS.g_object_set (cell, OS.foreground_gdk, drawForeground, 0); |
| } |
| result = OS.call (klass.render, cell, window, handle, background_area, cell_area, expose_area, drawFlags); |
| } |
| if (item != null) { |
| if (OS.GTK_IS_CELL_RENDERER_TEXT (cell)) { |
| if (hooks (SWT.PaintItem)) { |
| GdkRectangle rect = new GdkRectangle (); |
| int /*long*/ path = OS.gtk_tree_model_get_path (modelHandle, iter); |
| OS.gtk_tree_view_get_cell_area (handle, path, columnHandle, rect); |
| OS.gtk_tree_path_free (path); |
| if (OS.GTK_VERSION < OS.VERSION (2, 8, 18) && OS.gtk_tree_view_get_expander_column (handle) == columnHandle) { |
| int [] buffer = new int [1]; |
| OS.gtk_widget_style_get (handle, OS.expander_size, buffer, 0); |
| rect.x += buffer [0] + TreeItem.EXPANDER_EXTRA_PADDING; |
| rect.width -= buffer [0] + TreeItem.EXPANDER_EXTRA_PADDING; |
| //OS.gtk_widget_style_get (handle, OS.horizontal_separator, buffer, 0); |
| //rect.x += buffer[0]; |
| //rect.width -= buffer [0]; // TODO Is this required for some versions? |
| } |
| ignoreSize = true; |
| int [] contentX = new int [1], contentWidth = new int [1]; |
| OS.gtk_cell_renderer_get_size (cell, handle, null, null, null, contentWidth, null); |
| OS.gtk_tree_view_column_cell_get_position (columnHandle, cell, contentX, null); |
| ignoreSize = false; |
| Image image = item.getImage (columnIndex); |
| int imageWidth = 0; |
| if (image != null) { |
| Rectangle bounds = image.getBounds (); |
| imageWidth = bounds.width; |
| } |
| contentX [0] -= imageWidth; |
| contentWidth [0] += imageWidth; |
| GC gc = new GC (this); |
| if ((drawState & SWT.SELECTED) != 0) { |
| gc.setBackground (display.getSystemColor (SWT.COLOR_LIST_SELECTION)); |
| gc.setForeground (display.getSystemColor (SWT.COLOR_LIST_SELECTION_TEXT)); |
| } else { |
| gc.setBackground (item.getBackground (columnIndex)); |
| Color foreground = drawForeground != null ? Color.gtk_new (display, drawForeground) : item.getForeground (columnIndex); |
| gc.setForeground (foreground); |
| } |
| gc.setFont (item.getFont (columnIndex)); |
| gc.setClipping (rect.x, rect.y, rect.width, rect.height); |
| Event event = new Event (); |
| event.item = item; |
| event.index = columnIndex; |
| event.gc = gc; |
| event.x = rect.x + contentX [0]; |
| event.y = rect.y; |
| event.width = contentWidth [0]; |
| event.height = rect.height; |
| event.detail = drawState; |
| sendEvent (SWT.PaintItem, event); |
| gc.dispose(); |
| } |
| } |
| } |
| return result; |
| } |
| |
| void resetCustomDraw () { |
| if ((style & SWT.VIRTUAL) != 0 || ownerDraw) return; |
| int end = Math.max (1, columnCount); |
| for (int i=0; i<end; i++) { |
| boolean customDraw = columnCount != 0 ? columns [i].customDraw : firstCustomDraw; |
| if (customDraw) { |
| int /*long*/ column = OS.gtk_tree_view_get_column (handle, i); |
| int /*long*/ textRenderer = getTextRenderer (column); |
| OS.gtk_tree_view_column_set_cell_data_func (column, textRenderer, 0, 0, 0); |
| if (columnCount != 0) columns [i].customDraw = false; |
| } |
| } |
| firstCustomDraw = false; |
| } |
| |
| /** |
| * Display a mark indicating the point at which an item will be inserted. |
| * The drop insert item has a visual hint to show where a dragged item |
| * will be inserted when dropped on the tree. |
| * |
| * @param item the insert item. Null will clear the insertion mark. |
| * @param before true places the insert mark above 'item'. false places |
| * the insert mark below 'item'. |
| * |
| * @exception IllegalArgumentException <ul> |
| * <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> |
| */ |
| public void setInsertMark (TreeItem item, boolean before) { |
| checkWidget (); |
| if (item == null) { |
| OS.gtk_tree_view_unset_rows_drag_dest(handle); |
| return; |
| } |
| if (item.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (item.parent != this) return; |
| Rectangle rect = item.getBounds(); |
| int /*long*/ [] path = new int /*long*/ [1]; |
| OS.gtk_widget_realize (handle); |
| if (!OS.gtk_tree_view_get_path_at_pos(handle, rect.x, rect.y, path, null, null, null)) return; |
| if (path [0] == 0) return; |
| int position = before ? OS.GTK_TREE_VIEW_DROP_BEFORE : OS.GTK_TREE_VIEW_DROP_AFTER; |
| OS.gtk_tree_view_set_drag_dest_row(handle, path[0], position); |
| OS.gtk_tree_path_free (path [0]); |
| } |
| |
| void setItemCount (int /*long*/ parentIter, int count) { |
| int itemCount = OS.gtk_tree_model_iter_n_children (modelHandle, parentIter); |
| if (count == itemCount) return; |
| boolean isVirtual = (style & SWT.VIRTUAL) != 0; |
| if (!isVirtual) setRedraw (false); |
| remove (parentIter, count, itemCount - 1); |
| if (isVirtual) { |
| for (int i=itemCount; i<count; i++) { |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| if (iter == 0) error (SWT.ERROR_NO_HANDLES); |
| OS.gtk_tree_store_append (modelHandle, iter, parentIter); |
| OS.gtk_tree_store_set (modelHandle, iter, ID_COLUMN, -1, -1); |
| OS.g_free (iter); |
| } |
| } else { |
| for (int i=itemCount; i<count; i++) { |
| new TreeItem (this, parentIter, SWT.NONE, i, true); |
| } |
| } |
| if (!isVirtual) setRedraw (true); |
| modelChanged = true; |
| } |
| |
| /** |
| * Sets the number of root-level items contained in the receiver. |
| * |
| * @param count 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> |
| * |
| * @since 3.2 |
| */ |
| public void setItemCount (int count) { |
| checkWidget (); |
| count = Math.max (0, count); |
| setItemCount (0, count); |
| } |
| /** |
| * Selects all of the items in the receiver. |
| * <p> |
| * If the receiver is single-select, do nothing. |
| * </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 selectAll () { |
| checkWidget(); |
| if ((style & SWT.SINGLE) != 0) return; |
| boolean fixColumn = showFirstColumn (); |
| 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); |
| if (fixColumn) hideFirstColumn (); |
| } |
| |
| void setBackgroundColor (GdkColor color) { |
| super.setBackgroundColor (color); |
| OS.gtk_widget_modify_base (handle, 0, color); |
| } |
| |
| void setBackgroundPixmap (int /*long*/ pixmap) { |
| super.setBackgroundPixmap (pixmap); |
| int /*long*/ window = paintWindow (); |
| if (window != 0) OS.gdk_window_set_back_pixmap (window, 0, true); |
| } |
| |
| 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 order that the items in the receiver should |
| * be displayed in to the given argument which is described |
| * in terms of the zero-relative ordering of when the items |
| * were added. |
| * |
| * @param order the new order to display the items |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the item order is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the item order is not the same length as the number of items</li> |
| * </ul> |
| * |
| * @see Tree#getColumnOrder() |
| * @see TreeColumn#getMoveable() |
| * @see TreeColumn#setMoveable(boolean) |
| * @see SWT#Move |
| * |
| * @since 3.2 |
| */ |
| public void setColumnOrder (int [] order) { |
| checkWidget (); |
| if (order == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (columnCount == 0) { |
| if (order.length > 0) error (SWT.ERROR_INVALID_ARGUMENT); |
| return; |
| } |
| if (order.length != columnCount) error (SWT.ERROR_INVALID_ARGUMENT); |
| boolean [] seen = new boolean [columnCount]; |
| for (int i = 0; i<order.length; i++) { |
| int index = order [i]; |
| if (index < 0 || index >= columnCount) error (SWT.ERROR_INVALID_RANGE); |
| if (seen [index]) error (SWT.ERROR_INVALID_ARGUMENT); |
| seen [index] = true; |
| } |
| int /*long*/ baseColumn = 0; |
| for (int i=0; i<order.length; i++) { |
| int /*long*/ column = columns [order [i]].handle; |
| OS.gtk_tree_view_move_column_after (handle, column, baseColumn); |
| baseColumn = column; |
| } |
| } |
| |
| void setFontDescription (int /*long*/ font) { |
| super.setFontDescription (font); |
| TreeColumn[] columns = getColumns (); |
| for (int i = 0; i < columns.length; i++) { |
| if (columns[i] != null) { |
| columns[i].setFontDescription (font); |
| } |
| } |
| } |
| |
| /** |
| * Marks the receiver's header as visible if the argument is <code>true</code>, |
| * and marks it invisible otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, marking |
| * it visible may not actually cause it to be displayed. |
| * </p> |
| * |
| * @param show the new visibility state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public void setHeaderVisible (boolean show) { |
| checkWidget (); |
| OS.gtk_tree_view_set_headers_visible (handle, show); |
| } |
| |
| /** |
| * Marks the receiver's lines as visible if the argument is <code>true</code>, |
| * and marks it invisible otherwise. |
| * <p> |
| * If one of the receiver's ancestors is not visible or some |
| * other condition makes the receiver not visible, marking |
| * it visible may not actually cause it to be displayed. |
| * </p> |
| * |
| * @param show the new visibility state |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public void setLinesVisible (boolean show) { |
| checkWidget(); |
| OS.gtk_tree_view_set_rules_hint (handle, show); |
| } |
| |
| void setParentBackground () { |
| super.setParentBackground (); |
| int /*long*/ window = paintWindow (); |
| if (window != 0) OS.gdk_window_set_back_pixmap (window, 0, true); |
| } |
| |
| void setParentWindow (int /*long*/ widget) { |
| int /*long*/ window = eventWindow (); |
| OS.gtk_widget_set_parent_window (widget, window); |
| } |
| |
| void setScrollWidth (int /*long*/ column, TreeItem item) { |
| if (columnCount != 0 || currentItem == item) return; |
| /* |
| * Use GTK_TREE_VIEW_COLUMN_GROW_ONLY on GTK versions < 2.3.2 |
| * because fixed_height_mode is not supported. |
| */ |
| if (((style & SWT.VIRTUAL) != 0) && OS.GTK_VERSION < OS.VERSION (2, 3, 2)) return; |
| int width = OS.gtk_tree_view_column_get_fixed_width (column); |
| int itemWidth = calculateWidth (column, item.handle); |
| if (width < itemWidth) { |
| OS.gtk_tree_view_column_set_fixed_width (column, itemWidth); |
| } |
| } |
| |
| /** |
| * Sets the receiver's selection to the given item. |
| * The current selection is cleared before the new item is selected. |
| * <p> |
| * If the item is not in the receiver, then it is ignored. |
| * </p> |
| * |
| * @param item the item to select |
| * |
| * @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> |
| * |
| * @since 3.2 |
| */ |
| public void setSelection (TreeItem item) { |
| checkWidget (); |
| if (item == null) error (SWT.ERROR_NULL_ARGUMENT); |
| setSelection (new TreeItem [] {item}); |
| } |
| |
| /** |
| * 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. |
| * </p> |
| * |
| * @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 items 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); |
| deselectAll (); |
| int length = items.length; |
| if (length == 0 || ((style & SWT.SINGLE) != 0 && length > 1)) return; |
| boolean fixColumn = showFirstColumn (); |
| 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); |
| boolean first = true; |
| for (int i = 0; i < length; i++) { |
| TreeItem item = items [i]; |
| if (item == null) continue; |
| if (item.isDisposed ()) break; |
| if (item.parent != this) continue; |
| int /*long*/ path = OS.gtk_tree_model_get_path (modelHandle, item.handle); |
| showItem (path, false); |
| if (first) { |
| OS.gtk_tree_view_set_cursor (handle, path, 0, false); |
| } |
| OS.gtk_tree_selection_select_iter (selection, item.handle); |
| OS.gtk_tree_path_free (path); |
| first = false; |
| } |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| if (fixColumn) hideFirstColumn (); |
| } |
| |
| /** |
| * Sets the column used by the sort indicator for the receiver. A null |
| * value will clear the sort indicator. The current sort column is cleared |
| * before the new column is set. |
| * |
| * @param column the column used by the sort indicator or <code>null</code> |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the column is 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> |
| * |
| * @since 3.2 |
| */ |
| public void setSortColumn (TreeColumn column) { |
| checkWidget (); |
| if (column != null && column.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (sortColumn != null && !sortColumn.isDisposed()) { |
| OS.gtk_tree_view_column_set_sort_indicator (sortColumn.handle, false); |
| } |
| sortColumn = column; |
| if (sortColumn != null && sortDirection != SWT.NONE) { |
| OS.gtk_tree_view_column_set_sort_indicator (sortColumn.handle, true); |
| OS.gtk_tree_view_column_set_sort_order (sortColumn.handle, sortDirection == SWT.DOWN ? 0 : 1); |
| } |
| } |
| |
| /** |
| * Sets the direction of the sort indicator for the receiver. The value |
| * can be one of <code>UP</code>, <code>DOWN</code> or <code>NONE</code>. |
| * |
| * @param direction the direction of the sort indicator |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.2 |
| */ |
| public void setSortDirection (int direction) { |
| checkWidget (); |
| if (direction != SWT.UP && direction != SWT.DOWN && direction != SWT.NONE) return; |
| sortDirection = direction; |
| if (sortColumn == null || sortColumn.isDisposed ()) return; |
| if (sortDirection == SWT.NONE) { |
| OS.gtk_tree_view_column_set_sort_indicator (sortColumn.handle, false); |
| } else { |
| OS.gtk_tree_view_column_set_sort_indicator (sortColumn.handle, true); |
| OS.gtk_tree_view_column_set_sort_order (sortColumn.handle, sortDirection == SWT.DOWN ? 0 : 1); |
| } |
| } |
| |
| /** |
| * Sets the item which is currently at the top of the receiver. |
| * This item can change when items are expanded, collapsed, scrolled |
| * or new items are added or removed. |
| * |
| * @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#getTopItem() |
| * |
| * @since 2.1 |
| */ |
| public void setTopItem (TreeItem item) { |
| if (item == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (item.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); |
| if (item.parent != this) return; |
| int /*long*/ path = OS.gtk_tree_model_get_path (modelHandle, item.handle); |
| showItem (path, false); |
| OS.gtk_tree_view_scroll_to_cell (handle, path, 0, true, 0f, 0f); |
| 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); |
| } |
| |
| /** |
| * Shows the column. If the column is already showing in the receiver, |
| * this method simply returns. Otherwise, the columns are scrolled until |
| * the column is visible. |
| * |
| * @param column the column 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> |
| * |
| * @since 3.1 |
| */ |
| public void showColumn (TreeColumn column) { |
| checkWidget (); |
| if (column == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (column.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); |
| if (column.parent != this) return; |
| /* |
| * This code is intentionally commented. According to the |
| * documentation, gtk_tree_view_scroll_to_cell should scroll the |
| * minimum amount to show the column but instead it scrolls strangely. |
| */ |
| //OS.gtk_tree_view_scroll_to_cell (handle, 0, column.handle, false, 0, 0); |
| OS.gtk_widget_realize (handle); |
| GdkRectangle cellRect = new GdkRectangle (); |
| OS.gtk_tree_view_get_cell_area (handle, 0, column.handle, cellRect); |
| GdkRectangle visibleRect = new GdkRectangle (); |
| OS.gtk_tree_view_get_visible_rect (handle, visibleRect); |
| if (cellRect.x < visibleRect.x) { |
| OS.gtk_tree_view_scroll_to_point (handle, cellRect.x, -1); |
| } else { |
| int width = Math.min (visibleRect.width, cellRect.width); |
| if (cellRect.x + width > visibleRect.x + visibleRect.width) { |
| int tree_x = cellRect.x + width - visibleRect.width; |
| OS.gtk_tree_view_scroll_to_point (handle, tree_x, -1); |
| } |
| } |
| } |
| |
| boolean showFirstColumn () { |
| /* |
| * Bug in GTK. If no columns are visible, changing the selection |
| * will fail. The fix is to temporarily make a column visible. |
| */ |
| int columnCount = Math.max (1, this.columnCount); |
| for (int i=0; i<columnCount; i++) { |
| int /*long*/ column = OS.gtk_tree_view_get_column (handle, i); |
| if (OS.gtk_tree_view_column_get_visible (column)) return false; |
| } |
| int /*long*/ firstColumn = OS.gtk_tree_view_get_column (handle, 0); |
| OS.gtk_tree_view_column_set_visible (firstColumn, true); |
| return true; |
| } |
| |
| /** |
| * 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> |
| * |
| * @see Tree#showItem(TreeItem) |
| */ |
| public void showSelection () { |
| checkWidget(); |
| TreeItem [] items = getSelection (); |
| if (items.length != 0 && items [0] != null) showItem (items [0]); |
| } |
| |
| void showItem (int /*long*/ path, boolean scroll) { |
| int depth = OS.gtk_tree_path_get_depth (path); |
| if (depth > 1) { |
| int [] indices = new int [depth - 1]; |
| int /*long*/ indicesPtr = OS.gtk_tree_path_get_indices (path); |
| OS.memmove (indices, indicesPtr, indices.length * 4); |
| int /*long*/ 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); |
| } |
| if (scroll) { |
| OS.gtk_widget_realize (handle); |
| GdkRectangle cellRect = new GdkRectangle (); |
| OS.gtk_tree_view_get_cell_area (handle, path, 0, cellRect); |
| boolean isHidden = cellRect.y == 0 && cellRect.height == 0; |
| int [] tx = new int [1], ty = new int [1]; |
| OS.gtk_tree_view_widget_to_tree_coords (handle, cellRect.x, cellRect.y, tx, ty); |
| GdkRectangle visibleRect = new GdkRectangle (); |
| OS.gtk_tree_view_get_visible_rect (handle, visibleRect); |
| if (!isHidden) { |
| if (ty[0] < visibleRect.y || ty[0] + cellRect.height > visibleRect.y + visibleRect.height) { |
| isHidden = true; |
| } |
| } |
| if (isHidden) { |
| /* |
| * 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, depth != 1, 0.5f, 0.0f); |
| if (depth != 1) { |
| OS.gtk_tree_view_scroll_to_cell (handle, path, 0, true, 0.5f, 0.0f); |
| } else { |
| if (ty[0] < visibleRect.y ) { |
| 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_point (handle, -1, ty[0] + cellRect.height - visibleRect.height); |
| } |
| } |
| } |
| } |
| } |
| } |
| |
| /** |
| * 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); |
| if (item.parent != this) return; |
| int /*long*/ path = OS.gtk_tree_model_get_path (modelHandle, item.handle); |
| showItem (path, true); |
| OS.gtk_tree_path_free (path); |
| } |
| |
| int /*long*/ treeSelectionProc (int /*long*/ model, int /*long*/ path, int /*long*/ iter, int[] selection, int length) { |
| if (selection != null) { |
| int [] index = new int [1]; |
| OS.gtk_tree_model_get (modelHandle, iter, ID_COLUMN, index, -1); |
| selection [(int)/*64*/length] = index [0]; |
| } |
| return 0; |
| } |
| |
| void updateScrollBarValue (ScrollBar bar) { |
| super.updateScrollBarValue (bar); |
| /* |
| * Bug in GTK. Scrolling changes the XWindow position |
| * and makes the child widgets appear to scroll even |
| * though when queried their position is unchanged. |
| * The fix is to queue a resize event for each child to |
| * force the position to be corrected. |
| */ |
| int /*long*/ parentHandle = parentingHandle (); |
| int /*long*/ list = OS.gtk_container_get_children (parentHandle); |
| if (list == 0) return; |
| int /*long*/ temp = list; |
| while (temp != 0) { |
| int /*long*/ widget = OS.g_list_data (temp); |
| if (widget != 0) OS.gtk_widget_queue_resize (widget); |
| temp = OS.g_list_next (temp); |
| } |
| OS.g_list_free (list); |
| } |
| |
| } |
