Mercurial > projects > dwt2
view org.eclipse.swt.gtk.linux.x86/src/org/eclipse/swt/widgets/Tree.d @ 108:b397a43d66d1
Updated swt linux for DMD 1.063 and latest Tango trunk.
author | Jacob Carlborg <doob@me.com> |
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date | Wed, 25 Aug 2010 23:08:27 +0200 |
parents | f713da8bc051 |
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/******************************************************************************* * Copyright (c) 2000, 2008 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 * Port to the D programming language: * Frank Benoit <benoit@tionex.de> *******************************************************************************/ module org.eclipse.swt.widgets.Tree; import org.eclipse.swt.SWT; import org.eclipse.swt.SWTException; import org.eclipse.swt.events.SelectionEvent; import org.eclipse.swt.events.SelectionListener; import org.eclipse.swt.events.TreeListener; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.GC; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.Point; import org.eclipse.swt.graphics.Rectangle; import org.eclipse.swt.internal.gtk.OS; import org.eclipse.swt.widgets.TreeItem; import org.eclipse.swt.widgets.TreeColumn; import org.eclipse.swt.widgets.Composite; import org.eclipse.swt.widgets.ImageList; import org.eclipse.swt.widgets.Listener; import org.eclipse.swt.widgets.Shell; import org.eclipse.swt.widgets.Decorations; import org.eclipse.swt.widgets.Menu; import org.eclipse.swt.widgets.ScrollBar; import org.eclipse.swt.widgets.Control; import org.eclipse.swt.widgets.Display; import org.eclipse.swt.widgets.Event; import org.eclipse.swt.widgets.TypedListener; import java.lang.all; /** * 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 is 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 normally make sense to add <code>Control</code> children to * it, or set a layout on it, unless implementing something like a cell * editor. * </p><p> * <dl> * <dt><b>Styles:</b></dt> * <dd>SINGLE, MULTI, CHECK, FULL_SELECTION, VIRTUAL, NO_SCROLL</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> * * @see <a href="http://www.eclipse.org/swt/snippets/#tree">Tree, TreeItem, TreeColumn snippets</a> * @see <a href="http://www.eclipse.org/swt/examples.php">SWT Example: ControlExample</a> * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> */ public class Tree : Composite { alias Composite.computeSize computeSize; alias Composite.createHandle createHandle; alias Composite.dragDetect dragDetect; alias Composite.mnemonicHit mnemonicHit; alias Composite.mnemonicMatch mnemonicMatch; alias Composite.setBackgroundColor setBackgroundColor; alias Composite.setBounds setBounds; CallbackData treeSelectionCallbackData; GtkTreeStore* modelHandle; GtkCellRenderer* checkRenderer; int columnCount, sortDirection; GtkWidget* ignoreCell; TreeItem[] items; TreeColumn [] columns; TreeColumn sortColumn; TreeItem currentItem; ImageList imageList, headerImageList; bool firstCustomDraw; bool modelChanged; bool expandAll; int drawState, drawFlags; GdkColor* drawForeground; bool ownerDraw, ignoreSize; static const int ID_COLUMN = 0; static const int CHECKED_COLUMN = 1; static const int GRAYED_COLUMN = 2; static const int FOREGROUND_COLUMN = 3; static const int BACKGROUND_COLUMN = 4; static const int FONT_COLUMN = 5; static const int FIRST_COLUMN = FONT_COLUMN + 1; static const int CELL_PIXBUF = 0; static const int CELL_TEXT = 1; static const int CELL_FOREGROUND = 2; static const int CELL_BACKGROUND = 3; static const int CELL_FONT = 4; static const 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 SWT#FULL_SELECTION * @see SWT#VIRTUAL * @see SWT#NO_SCROLL * @see Widget#checkSubclass * @see Widget#getStyle */ public this (Composite parent, int style) { super (parent, checkStyle (style)); } override 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; default: } } } TreeItem _getItem (GtkTreeIter* iter) { int id = getId (iter, true); if (items [id] !is null) return items [id]; auto path = OS.gtk_tree_model_get_path (modelHandle, iter); int depth = OS.gtk_tree_path_get_depth (path); int [] indices = new int [depth]; indices[] = OS.gtk_tree_path_get_indices (path)[ 0 .. depth ]; GtkTreeIter* parentIter; GtkTreeIter parentIterInst; if (depth > 1) { OS.gtk_tree_path_up (path); parentIter = &parentIterInst; 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); return items [id]; } TreeItem _getItem (GtkTreeIter* parentIter, int index) { GtkTreeIter iter; OS.gtk_tree_model_iter_nth_child(modelHandle, &iter, parentIter, index); int id = getId (&iter, true); if (items [id] !is null) return items [id]; return items [id] = new TreeItem (this, parentIter, SWT.NONE, index, false); } int getId (GtkTreeIter* iter, bool queryModel) { if (queryModel) { int value; OS.gtk_tree_model_get1 (modelHandle, iter, ID_COLUMN, cast(void**)&value); if (value !is -1) return value ; } // find next available id int id = 0; while (id < items.length && items [id] !is null) id++; if (id is items.length) { TreeItem [] newItems = new TreeItem [items.length + 4]; System.arraycopy (items, 0, newItems, 0, items.length); items = newItems; } OS.gtk_tree_store_set1 (modelHandle, iter, ID_COLUMN, cast(void*)id ); return id; } static int checkStyle (int style) { /* * Feature in Windows. Even when WS_HSCROLL or * WS_VSCROLL is not specified, Windows creates * trees and tables with scroll bars. The fix * is to set H_SCROLL and V_SCROLL. * * NOTE: This code appears on all platforms so that * applications have consistent scroll bar behavior. */ if ((style & SWT.NO_SCROLL) is 0) { 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); } override void cellDataProc ( GtkTreeViewColumn *tree_column, GtkCellRenderer *cell, GtkTreeModel *tree_model, GtkTreeIter *iter, void* data) { if (cell is cast(GtkCellRenderer*)ignoreCell) return; TreeItem item = _getItem (iter); if (item !is null) OS.g_object_set_qdata (cast(GObject*)cell, Display.SWT_OBJECT_INDEX2, item.handle); bool isPixbuf = OS.GTK_IS_CELL_RENDERER_PIXBUF (cell); if (!(isPixbuf || OS.GTK_IS_CELL_RENDERER_TEXT (cell))) return; int modelIndex = -1; bool customDraw = false; if (columnCount is 0) { modelIndex = Tree.FIRST_COLUMN; customDraw = firstCustomDraw; } else { TreeColumn column = cast(TreeColumn) display.getWidget (cast(GtkWidget*)tree_column); if (column !is null) { modelIndex = column.modelIndex; customDraw = column.customDraw; } } if (modelIndex is -1) return; bool setData = false; if ((style & SWT.VIRTUAL) !is 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.buildVERSION (2, 3, 2)) { auto path = OS.gtk_tree_model_get_path (tree_model, iter); OS.gtk_widget_realize (handle); GdkRectangle visible; OS.gtk_tree_view_get_visible_rect (handle, &visible); GdkRectangle area; 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 !is null && imageList.pixbufs.length > 0) { if (isPixbuf) OS.g_object_set1 (cell, OS.pixbuf.ptr, cast(int)imageList.pixbufs [0]); } return; } } if (!item.cached) { //lastIndexOf = index [0]; setData = checkData (item); } } void* ptr; if (setData) { if (isPixbuf) { ptr = null; OS.gtk_tree_model_get1 (tree_model, iter, modelIndex + CELL_PIXBUF, &ptr); OS.g_object_set1 (cell, OS.pixbuf.ptr, cast(int)ptr); } else { ptr = null; OS.gtk_tree_model_get1 (tree_model, iter, modelIndex + CELL_TEXT, &ptr); if (ptr !is null) { OS.g_object_set1 (cell, OS.text.ptr, cast(int)ptr); OS.g_free (ptr); } } } 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.buildVERSION (2, 2, 1)) { if (!ownerDraw) { ptr = null; OS.gtk_tree_model_get1 (tree_model, iter, modelIndex + CELL_BACKGROUND, &ptr); if (ptr !is null) { OS.g_object_set1 (cell, OS.cell_background_gdk.ptr, cast(int)ptr); } } } if (!isPixbuf) { ptr = null; OS.gtk_tree_model_get1 (tree_model, iter, modelIndex + CELL_FOREGROUND, &ptr); if (ptr !is null) { OS.g_object_set1 (cell, OS.foreground_gdk.ptr, cast(int)ptr); } ptr = null; OS.gtk_tree_model_get1 (tree_model, iter, modelIndex + CELL_FONT, &ptr); if (ptr !is null) { OS.g_object_set1 (cell, OS.font_desc.ptr, cast(int)ptr); } } } if (setData) { ignoreCell = cast(GtkWidget*)cell; setScrollWidth (tree_column, item); ignoreCell = null; } } bool checkData (TreeItem item) { if (item.cached) return true; if ((style & SWT.VIRTUAL) !is 0) { item.cached = true; TreeItem parentItem = item.getParentItem (); Event event = new Event (); event.item = item; event.index = parentItem is 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.ptr, OS.gtk_tree_model_get_type ()); OS.g_signal_handlers_block_matched (modelHandle, mask, signal_id, 0, null, null, 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, null, null, handle); if (item.isDisposed ()) return false; } return true; } protected override 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 is 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 is null) error (SWT.ERROR_NULL_ARGUMENT); TypedListener typedListener = new TypedListener (listener); addListener (SWT.Expand, typedListener); addListener (SWT.Collapse, typedListener); } int calculateWidth (GtkTreeViewColumn *column, GtkTreeIter* iter, bool recurse) { 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; GtkTreePath* path = null; if (OS.gtk_tree_view_get_expander_column (handle) is column) { /* indent */ GdkRectangle rect; OS.gtk_widget_realize (handle); path = OS.gtk_tree_model_get_path (modelHandle, iter); OS.gtk_tree_view_get_cell_area (handle, path, column, &rect); width += rect.x; /* expander */ OS.gtk_widget_style_get1 (handle, OS.expander_size.ptr, &w); width += w + TreeItem.EXPANDER_EXTRA_PADDING; } OS.gtk_widget_style_get1(handle, OS.focus_line_width.ptr, &w); width += 2 * w ; auto list = OS.gtk_tree_view_column_get_cell_renderers (column); if (list is null) return 0; auto temp = list; while (temp !is null) { auto renderer = OS.g_list_data (temp); if (renderer !is null) { OS.gtk_cell_renderer_get_size (renderer, handle, null, null, null, &w, null); width += w ; } temp = OS.g_list_next (temp); } OS.g_list_free (list); if (recurse) { if (path is null) path = OS.gtk_tree_model_get_path (modelHandle, iter); bool expanded = OS.gtk_tree_view_row_expanded (handle, path) !is 0; if (expanded) { GtkTreeIter childIter; bool valid = OS.gtk_tree_model_iter_children (modelHandle, &childIter, iter) !is 0; while (valid) { width = Math.max (width, calculateWidth (column, &childIter, true)); valid = OS.gtk_tree_model_iter_next (modelHandle, &childIter) !is 0; } } } if (path !is null) OS.gtk_tree_path_free (path); 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, bool all) { checkWidget (); clear (null, index, all); } void clear (GtkTreeIter* parentIter, int index, bool all) { GtkTreeIter iter; OS.gtk_tree_model_iter_nth_child(modelHandle, &iter, parentIter, index); int value; OS.gtk_tree_model_get1 (modelHandle, &iter, ID_COLUMN, cast(void**)&value); if (value !is -1) { TreeItem item = items [value ]; item.clear (); } if (all) clearAll (all, &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 (bool all) { checkWidget (); clearAll (all, null); } void clearAll (bool all, GtkTreeIter* parentIter) { int length = OS.gtk_tree_model_iter_n_children (modelHandle, parentIter); if (length is 0) return; GtkTreeIter iter; bool valid = cast(bool)OS.gtk_tree_model_iter_children (modelHandle, &iter, parentIter); int value; while (valid) { OS.gtk_tree_model_get1 (modelHandle, &iter, ID_COLUMN, cast(void**)&value); if (value !is -1) { TreeItem item = items [value ]; item.clear (); } if (all) clearAll (all, &iter); valid = cast(bool)OS.gtk_tree_model_iter_next (modelHandle, &iter); } } public override Point computeSize (int wHint, int hHint, bool changed) { checkWidget (); if (wHint !is SWT.DEFAULT && wHint < 0) wHint = 0; if (hHint !is 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 (void* oldModel, int oldStart, void* newModel, int newStart, uint [] types, void* oldParent, void* newParent, int modelLength) { GtkTreeIter iter; if (OS.gtk_tree_model_iter_children (oldModel, &iter, oldParent)) { GtkTreeIter*[] oldItems = new GtkTreeIter*[]( OS.gtk_tree_model_iter_n_children (oldModel, oldParent)); int oldIndex = 0; do { GtkTreeIter* newItem = cast(GtkTreeIter*)OS.g_malloc (GtkTreeIter.sizeof); if (newItem is null) error (SWT.ERROR_NO_HANDLES); OS.gtk_tree_store_append (newModel, newItem, newParent); int index; OS.gtk_tree_model_get1 (oldModel, &iter, ID_COLUMN, cast(void**)&index); TreeItem item = null; if (index !is -1) { item = items [index ]; if (item !is null) { auto oldItem = cast(GtkTreeIter*)item.handle; oldItems[oldIndex++] = oldItem; void* ptr; for (int j = 0; j < FIRST_COLUMN; j++) { OS.gtk_tree_model_get1 (oldModel, oldItem, j, &ptr); OS.gtk_tree_store_set1 (newModel, newItem, j, ptr ); if (types [j] is OS.G_TYPE_STRING ()) OS.g_free ((ptr )); } for (int j= 0; j<modelLength - FIRST_COLUMN; j++) { OS.gtk_tree_model_get1 (oldModel, oldItem, oldStart + j, &ptr); OS.gtk_tree_store_set1 (newModel, newItem, newStart + j, ptr ); if (types [j] is OS.G_TYPE_STRING ()) OS.g_free ((ptr )); } } } else { OS.gtk_tree_store_set1 (newModel, newItem, ID_COLUMN, cast(void*)-1 ); } // recurse through children copyModel(oldModel, oldStart, newModel, newStart, types, &iter, newItem, modelLength); if (item!is null) { item.handle = cast(GtkWidget*)newItem; } else { OS.g_free (newItem); } } while (OS.gtk_tree_model_iter_next(oldModel, &iter)); for (int i = 0; i < oldItems.length; i++) { auto oldItem = oldItems [i]; if (oldItem !is null) { OS.gtk_tree_store_remove (oldModel, oldItem); OS.g_free (oldItem); } } } } 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 !is 0) { int modelLength = OS.gtk_tree_model_get_n_columns (modelHandle); bool [] usedColumns = new bool [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 is modelLength) { auto oldModel = modelHandle; uint[] types = getColumnTypes (columnCount + 4); // grow by 4 rows at a time auto newModel = OS.gtk_tree_store_newv (types.length, types.ptr); if (newModel is null) error (SWT.ERROR_NO_HANDLES); copyModel (oldModel, FIRST_COLUMN, newModel, FIRST_COLUMN, types, null, null, modelLength); OS.gtk_tree_view_set_model (handle, newModel); OS.g_object_unref (oldModel); modelHandle = newModel; } } auto columnHandle = OS.gtk_tree_view_column_new (); if (columnHandle is null) error (SWT.ERROR_NO_HANDLES); if (index is 0 && columnCount > 0) { TreeColumn checkColumn = columns [0]; createRenderers (cast(GtkTreeViewColumn *)checkColumn.handle, checkColumn.modelIndex, false, checkColumn.style); } createRenderers (columnHandle, modelIndex, index is 0, column is null ? 0 : column.style); /* * Use GTK_TREE_VIEW_COLUMN_GROW_ONLY on GTK versions < 2.3.2 * because fixed_height_mode is not supported. */ bool useVirtual = (style & SWT.VIRTUAL) !is 0 && OS.GTK_VERSION >= OS.buildVERSION (2, 3, 2); if (!useVirtual && columnCount is 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 !is 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 !is null) { column.handle = cast(GtkWidget*)columnHandle; column.modelIndex = modelIndex; } /* Disable searching when using VIRTUAL */ if ((style & SWT.VIRTUAL) !is 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.buildVERSION (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 is 0 ? FIRST_COLUMN : columns [0].modelIndex; OS.gtk_tree_view_set_search_column (handle, firstColumn + CELL_TEXT); } } override void createHandle (int index) { state |= HANDLE; fixedHandle = cast(GtkWidget*)OS.g_object_new (display.gtk_fixed_get_type (), null); if (fixedHandle is null) error (SWT.ERROR_NO_HANDLES); OS.gtk_fixed_set_has_window (fixedHandle, true); scrolledHandle = cast(GtkWidget*)OS.gtk_scrolled_window_new (null, null); if (scrolledHandle is null) error (SWT.ERROR_NO_HANDLES); uint[] types = getColumnTypes (1); modelHandle = cast(GtkTreeStore*)OS.gtk_tree_store_newv (types.length, types.ptr); if (modelHandle is null) error (SWT.ERROR_NO_HANDLES); handle = cast(GtkWidget*)OS.gtk_tree_view_new_with_model (modelHandle); if (handle is null) error (SWT.ERROR_NO_HANDLES); if ((style & SWT.CHECK) !is 0) { checkRenderer = cast(GtkCellRenderer*)OS.gtk_cell_renderer_toggle_new (); if (checkRenderer is null) 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) !is 0 ? OS.GTK_SELECTION_MULTIPLE : OS.GTK_SELECTION_BROWSE; auto 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) !is 0 ? OS.GTK_POLICY_AUTOMATIC : OS.GTK_POLICY_NEVER; int vsp = (style & SWT.V_SCROLL) !is 0 ? OS.GTK_POLICY_AUTOMATIC : OS.GTK_POLICY_NEVER; OS.gtk_scrolled_window_set_policy (scrolledHandle, hsp, vsp); if ((style & SWT.BORDER) !is 0) OS.gtk_scrolled_window_set_shadow_type (scrolledHandle, OS.GTK_SHADOW_ETCHED_IN); /* Disable searching when using VIRTUAL */ if ((style & SWT.VIRTUAL) !is 0) { /* The fixed_height_mode property only exists in GTK 2.3.2 and greater */ if (OS.GTK_VERSION >= OS.buildVERSION (2, 3, 2)) { OS.g_object_set1 (handle, OS.fixed_height_mode.ptr, true); } /* * 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.buildVERSION (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 is 0) { // first column must be left aligned column.style &= ~(SWT.LEFT | SWT.RIGHT | SWT.CENTER); column.style |= SWT.LEFT; } if (columnCount is 0) { column.handle = cast(GtkWidget*)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 (cast(GtkTreeViewColumn *)column.handle, column.modelIndex, true, column.style); column.customDraw = firstCustomDraw; firstCustomDraw = false; } else { createColumn (column, index); } auto boxHandle = OS.gtk_hbox_new (false, 3); if (boxHandle is null) error (SWT.ERROR_NO_HANDLES); auto labelHandle = OS.gtk_label_new_with_mnemonic (null); if (labelHandle is null) error (SWT.ERROR_NO_HANDLES); auto imageHandle = OS.gtk_image_new (); if (imageHandle is null) 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); auto widget = OS.gtk_widget_get_parent (boxHandle); while (widget !is handle) { if (OS.GTK_IS_BUTTON (widget)) { column.buttonHandle = widget; break; } widget = OS.gtk_widget_get_parent (widget); } if (columnCount is 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) !is 0) { column.setFontDescription (getFontDescription ()); } if (columnCount >= 1) { for (int i=0; i<items.length; i++) { TreeItem item = items [i]; if (item !is null) { Font [] cellFont = item.cellFont; if (cellFont !is 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, GtkTreeIter* parentIter, int index) { int count = OS.gtk_tree_model_iter_n_children (modelHandle, parentIter); if (index is -1) index = count; if (!(0 <= index && index <= count)) error (SWT.ERROR_INVALID_RANGE); item.handle = cast(GtkWidget*)OS.g_malloc (GtkTreeIter.sizeof); if (item.handle is null) 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 is count) { OS.gtk_tree_store_append (modelHandle, item.handle, parentIter); } else { OS.gtk_tree_store_insert (modelHandle, item.handle, parentIter, index); } int id = getId (cast(GtkTreeIter*) item.handle, false); items [id] = item; modelChanged = true; } void createRenderers (GtkTreeViewColumn* columnHandle, int modelIndex, bool check, int columnStyle) { OS.gtk_tree_view_column_clear (columnHandle); if ((style & SWT.CHECK) !is 0 && check) { OS.gtk_tree_view_column_pack_start (columnHandle, checkRenderer, false); OS.gtk_tree_view_column_add_attribute (columnHandle, checkRenderer, OS.active.ptr, CHECKED_COLUMN); /* * Feature in GTK. The inconsistent property only exists in GTK 2.2.x. */ if (OS.GTK_VERSION >= OS.buildVERSION (2, 2, 0)) { OS.gtk_tree_view_column_add_attribute (columnHandle, checkRenderer, OS.inconsistent.ptr, 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.buildVERSION (2, 2, 1)) { if (!ownerDraw) OS.gtk_tree_view_column_add_attribute (columnHandle, checkRenderer, OS.cell_background_gdk.ptr, BACKGROUND_COLUMN); } if (ownerDraw) { display.doCellDataProc( handle, cast(GtkTreeViewColumn*)columnHandle, cast(GtkCellRenderer*)checkRenderer ); OS.g_object_set_qdata (cast(GObject*)checkRenderer, Display.SWT_OBJECT_INDEX1, columnHandle); } } auto pixbufRenderer = ownerDraw ? cast(GtkCellRenderer*)OS.g_object_new (display.gtk_cell_renderer_pixbuf_get_type (), null) : OS.gtk_cell_renderer_pixbuf_new (); if (pixbufRenderer is null) error (SWT.ERROR_NO_HANDLES); auto textRenderer = ownerDraw ? cast(GtkCellRenderer*)OS.g_object_new (display.gtk_cell_renderer_text_get_type (), null) : OS.gtk_cell_renderer_text_new (); if (textRenderer is null) error (SWT.ERROR_NO_HANDLES); if (ownerDraw) { OS.g_object_set_qdata (cast(GObject*)pixbufRenderer, Display.SWT_OBJECT_INDEX1, columnHandle); OS.g_object_set_qdata (cast(GObject*)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) !is 0 && check) { OS.g_object_set1 (pixbufRenderer, OS.mode.ptr, OS.GTK_CELL_RENDERER_MODE_ACTIVATABLE); } /* Set alignment */ if ((columnStyle & SWT.RIGHT) !is 0) { OS.g_object_set1_float(textRenderer, OS.xalign.ptr, 1.0f); 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) !is 0) { OS.g_object_set1_float(textRenderer, OS.xalign.ptr, 0.5f); 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.ptr, 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.buildVERSION (2, 2, 1)) { if (!ownerDraw) { OS.gtk_tree_view_column_add_attribute (columnHandle, pixbufRenderer, OS.cell_background_gdk.ptr, BACKGROUND_COLUMN); OS.gtk_tree_view_column_add_attribute (columnHandle, textRenderer, OS.cell_background_gdk.ptr, BACKGROUND_COLUMN); } } OS.gtk_tree_view_column_add_attribute (columnHandle, textRenderer, OS.text.ptr, modelIndex + CELL_TEXT); OS.gtk_tree_view_column_add_attribute (columnHandle, textRenderer, OS.foreground_gdk.ptr, FOREGROUND_COLUMN); OS.gtk_tree_view_column_add_attribute (columnHandle, textRenderer, OS.font_desc.ptr, FONT_COLUMN); bool customDraw = firstCustomDraw; if (columnCount !is 0) { for (int i=0; i<columnCount; i++) { if (columns [i].handle is cast(GtkWidget*)columnHandle) { customDraw = columns [i].customDraw; break; } } } if ((style & SWT.VIRTUAL) !is 0 || customDraw || ownerDraw) { display.doCellDataProc( handle, cast(GtkTreeViewColumn*)columnHandle, cast(GtkCellRenderer*)textRenderer ); display.doCellDataProc( handle, cast(GtkTreeViewColumn*)columnHandle, cast(GtkCellRenderer*)pixbufRenderer ); } } 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; } override void deregister () { super.deregister (); display.removeWidget (cast(GtkWidget*)OS.gtk_tree_view_get_selection (handle)); if (checkRenderer !is null) display.removeWidget (cast(GtkWidget*)checkRenderer); } /** * Deselects an item in the receiver. If the item was already * deselected, it remains deselected. * * @param item the item to be deselected * * @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 3.4 */ public void deselect (TreeItem item) { checkWidget (); if (item is null) error (SWT.ERROR_NULL_ARGUMENT); if (item.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); bool fixColumn = showFirstColumn (); auto selection = OS.gtk_tree_view_get_selection (handle); OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); OS.gtk_tree_selection_unselect_iter (selection, item.handle); OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); if (fixColumn) hideFirstColumn (); } /** * 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(); bool fixColumn = showFirstColumn (); auto selection = OS.gtk_tree_view_get_selection (handle); OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); OS.gtk_tree_selection_unselect_all (selection); OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); if (fixColumn) hideFirstColumn (); } void destroyItem (TreeColumn column) { int index = 0; while (index < columnCount) { if (columns [index] is column) break; index++; } if (index is columnCount) return; auto columnHandle = column.handle; if (columnCount is 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 is 0) { auto oldModel = modelHandle; uint[] types = getColumnTypes (1); auto newModel = OS.gtk_tree_store_newv (types.length, types.ptr); if (newModel is null) error (SWT.ERROR_NO_HANDLES); copyModel(oldModel, column.modelIndex, newModel, FIRST_COLUMN, types, null, null, 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 !is null) { auto iter = cast(GtkTreeIter*)item.handle; int modelIndex = column.modelIndex; OS.gtk_tree_store_set1 (modelHandle, iter, modelIndex + CELL_PIXBUF, null); OS.gtk_tree_store_set1 (modelHandle, iter, modelIndex + CELL_TEXT, null); OS.gtk_tree_store_set1 (modelHandle, iter, modelIndex + CELL_FOREGROUND, null); OS.gtk_tree_store_set1 (modelHandle, iter, modelIndex + CELL_BACKGROUND, null); OS.gtk_tree_store_set1 (modelHandle, iter, modelIndex + CELL_FONT, null); Font [] cellFont = item.cellFont; if (cellFont !is null) { if (columnCount is 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 is 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 (cast(GtkTreeViewColumn*)firstColumn.handle, firstColumn.modelIndex, true, firstColumn.style); } } /* Disable searching when using VIRTUAL */ if ((style & SWT.VIRTUAL) !is 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.buildVERSION (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 is 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.buildVERSION (2, 0, 6)) { int length = OS.gtk_tree_model_iter_n_children (modelHandle, null); if (length > 0) { GtkTreeIter iter; bool valid = cast(bool)OS.gtk_tree_model_iter_children (modelHandle, &iter, null); while (valid) { //PORTING_TODO: is this condition reasonable? if (item.handle is cast(GtkWidget*)&iter) { item.setExpanded (false); break; } valid = cast(bool)OS.gtk_tree_model_iter_next (modelHandle, &iter); } } } auto selection = OS.gtk_tree_view_get_selection (handle); OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); OS.gtk_tree_store_remove (modelHandle, item.handle); OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); modelChanged = true; } override bool dragDetect (int x, int y, bool filter, bool * consume) { bool selected = false; if (filter) { void* path; if (OS.gtk_tree_view_get_path_at_pos (handle, x, y, &path, null, null, null)) { if (path !is null) { auto selection = OS.gtk_tree_view_get_selection (handle); if (OS.gtk_tree_selection_path_is_selected (selection, path )) selected = true; OS.gtk_tree_path_free (path ); } } else { return false; } } bool dragDetect = super.dragDetect (x, y, filter, consume); if (dragDetect && selected && consume !is null) consume [0] = true; return dragDetect; } override GdkDrawable* eventWindow () { return paintWindow (); } override 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 !is null) { column.setToolTipText(oldShell, null); column.setToolTipText(newShell, column.toolTipText); } } } override GdkColor* getBackgroundColor () { return getBaseColor (); } public override Rectangle getClientArea () { checkWidget (); forceResize (); OS.gtk_widget_realize (handle); auto fixedWindow = OS.GTK_WIDGET_WINDOW (fixedHandle); auto binWindow = OS.gtk_tree_view_get_bin_window (handle); int binX, binY; OS.gdk_window_get_origin (binWindow, &binX, &binY); int fixedX, fixedY; OS.gdk_window_get_origin (fixedWindow, &fixedX, &fixedY); auto clientHandle = clientHandle (); int width = (state & ZERO_WIDTH) !is 0 ? 0 : OS.GTK_WIDGET_WIDTH (clientHandle); int height = (state & ZERO_HEIGHT) !is 0 ? 0 : OS.GTK_WIDGET_HEIGHT (clientHandle); return new Rectangle (fixedX - binX , fixedY - binY , width, height); } int getClientWidth () { int w, h; OS.gtk_widget_realize (handle); OS.gdk_drawable_get_size(OS.gtk_tree_view_get_bin_window(handle), &w, &h); return w; } /** * 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(bool) * @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(bool) * @see SWT#Move * * @since 3.2 */ public int [] getColumnOrder () { checkWidget (); if (columnCount is 0) return null; auto list = OS.gtk_tree_view_get_columns (handle); if (list is null) return null; int i = 0, count = OS.g_list_length (list); int [] order = new int [count]; auto temp = list; while (temp !is null) { auto column = OS.g_list_data (temp); if (column !is null) { for (int j=0; j<columnCount; j++) { if (columns [j].handle is column) { order [i++] = j; break; } } } temp = OS.g_list_next (temp); } OS.g_list_free (list); return order; } uint[] getColumnTypes (int columnCount) { uint[] types = new uint [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(bool) * @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 () { GtkTreePath* path; OS.gtk_tree_view_get_cursor (handle, &path, null); if (path is null) return null; TreeItem item = null; GtkTreeIter iter; if (OS.gtk_tree_model_get_iter (modelHandle, &iter, path)) { int index; OS.gtk_tree_model_get1 (modelHandle, &iter, ID_COLUMN, cast(void**)&index); if (index !is -1) item = items [index ]; //TODO should we be creating this item when index is -1? } OS.gtk_tree_path_free (path ); return item; } override 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; int height = 0; for (int i=0; i<columnCount; i++) { auto buttonHandle = columns [i].buttonHandle; if (buttonHandle !is null) { OS.gtk_widget_size_request (buttonHandle, &requisition); height = Math.max (height, requisition.height); } } return height; } OS.gtk_widget_realize (handle); auto fixedWindow = OS.GTK_WIDGET_WINDOW (fixedHandle); auto binWindow = OS.gtk_tree_view_get_bin_window (handle); int binY ; OS.gdk_window_get_origin (binWindow, null, &binY); int fixedY; OS.gdk_window_get_origin (fixedWindow, null, &fixedY); return binY - fixedY ; } /** * 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 bool getHeaderVisible () { checkWidget(); return cast(bool)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, null))) { error (SWT.ERROR_INVALID_RANGE); } return _getItem (null, 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 is null) error (SWT.ERROR_NULL_ARGUMENT); void* path; OS.gtk_widget_realize (handle); GtkTreeViewColumn* columnHandle; if (!OS.gtk_tree_view_get_path_at_pos (handle, point.x, point.y, &path, &columnHandle, null, null)) return null; if (path is null) return null; TreeItem item = null; GtkTreeIter iter; if (OS.gtk_tree_model_get_iter (modelHandle, &iter, path )) { bool overExpander = false; if (OS.gtk_tree_view_get_expander_column (handle) is columnHandle ) { int buffer; GdkRectangle rect; OS.gtk_tree_view_get_cell_area (handle, path, columnHandle, &rect); if (OS.GTK_VERSION < OS.buildVERSION (2, 8, 18)) { OS.gtk_widget_style_get1 (handle, OS.expander_size.ptr, &buffer); int expanderSize = buffer + TreeItem.EXPANDER_EXTRA_PADDING; overExpander = point.x < rect.x + expanderSize; } else { overExpander = point.x < rect.x; } } if (!overExpander) { item = _getItem (&iter); } } OS.gtk_tree_path_free (path ); 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, null); } /** * 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, null); if (itemCount is 0) { auto column = OS.gtk_tree_view_get_column (handle, 0); int w, h; ignoreSize = true; OS.gtk_tree_view_column_cell_get_size (column, null, null, null, &w, &h); ignoreSize = false; return h ; } else { int height = 0; GtkTreeIter iter; OS.gtk_tree_model_get_iter_first (modelHandle, &iter); int columnCount = Math.max (1, this.columnCount); for (int i=0; i<columnCount; i++) { auto 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, h; OS.gtk_tree_view_column_cell_get_size (column, null, null, null, &w, &h); height = Math.max (height, h ); } 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 (null); } TreeItem [] getItems (GtkTreeIter* parent) { int length = OS.gtk_tree_model_iter_n_children (modelHandle, parent); TreeItem[] result = new TreeItem [length]; if (length is 0) return result; if ((style & SWT.VIRTUAL) !is 0) { for (int i=0; i<length; i++) { result [i] = _getItem (parent, i); } } else { int i = 0; int index; GtkTreeIter iter; bool valid = cast(bool)OS.gtk_tree_model_iter_children (modelHandle, &iter, parent); while (valid) { OS.gtk_tree_model_get1 (modelHandle, &iter, ID_COLUMN, cast(void**)&index); result [i++] = items [index ]; valid = cast(bool)OS.gtk_tree_model_iter_next (modelHandle, &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 bool getLinesVisible() { checkWidget(); return cast(bool)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; } GtkCellRendererPixbuf* getPixbufRenderer (GtkTreeViewColumn* column) { auto list = OS.gtk_tree_view_column_get_cell_renderers (column); if (list is null) return null; int count = OS.g_list_length (list); GtkCellRendererPixbuf* pixbufRenderer; int i = 0; while (i < count) { auto renderer = OS.g_list_nth_data (list, i); if (OS.GTK_IS_CELL_RENDERER_PIXBUF (renderer)) { pixbufRenderer = cast(GtkCellRendererPixbuf*)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(); auto selection = OS.gtk_tree_view_get_selection (handle); if (OS.GTK_VERSION < OS.buildVERSION (2, 2, 0)) { display.treeSelectionLength = 0; display.treeSelection = new int [items.length]; display.doTreeSelectionProcConnect( &treeSelectionCallbackData, handle, selection ); 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 dummy; void* model = OS.GTK_VERSION < OS.buildVERSION (2, 2, 4) ? &dummy : null; auto list = OS.gtk_tree_selection_get_selected_rows (selection, &model); if (list !is null) { int count = OS.g_list_length (list); TreeItem [] treeSelection = new TreeItem [count]; int length_ = 0; for (int i=0; i<count; i++) { auto data = OS.g_list_nth_data (list, i); GtkTreeIter iter; if (OS.gtk_tree_model_get_iter (modelHandle, &iter, data)) { treeSelection [length_] = _getItem (&iter); length_++; } } 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 null; } /** * 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(); auto selection = OS.gtk_tree_view_get_selection (handle); if (OS.GTK_VERSION < OS.buildVERSION (2, 2, 0)) { display.treeSelectionLength = 0; display.treeSelection = null; display.doTreeSelectionProcConnect( &treeSelectionCallbackData, handle, selection ); 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; } GtkCellRendererText* getTextRenderer (GtkTreeViewColumn* column) { auto list = OS.gtk_tree_view_column_get_cell_renderers (column); if (list is null) return null; int count = OS.g_list_length (list); GtkCellRendererText* textRenderer; int i = 0; while (i < count) { auto renderer = OS.g_list_nth_data (list, i); if (OS.GTK_IS_CELL_RENDERER_TEXT (renderer)) { textRenderer = cast(GtkCellRendererText*)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 (); void* path; 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 is null) return null; TreeItem item = null; GtkTreeIter iter; if (OS.gtk_tree_model_get_iter (modelHandle, &iter, path )) { item = _getItem (&iter); } OS.gtk_tree_path_free (path ); return item; } override int gtk_button_press_event (GtkWidget* widget, GdkEventButton* gdkEvent) { if (gdkEvent.window !is OS.gtk_tree_view_get_bin_window (handle)) return 0; auto result = super.gtk_button_press_event (widget, gdkEvent); if (result !is 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 is 3 && gdkEvent.type is OS.GDK_BUTTON_PRESS) { void* path; if (OS.gtk_tree_view_get_path_at_pos (handle, cast(int)gdkEvent.x, cast(int)gdkEvent.y, &path, null, null, null)) { if (path !is null) { auto selection = OS.gtk_tree_view_get_selection (handle); if (OS.gtk_tree_selection_path_is_selected (selection, path )) result = 1; OS.gtk_tree_path_free (path ); } } } /* * 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) !is 0 && getSelectionCount () is 0) { void* path; if (OS.gtk_tree_view_get_path_at_pos (handle, cast(int)gdkEvent.x, cast(int)gdkEvent.y, &path, null, null, null)) { if (path !is null) { auto selection = OS.gtk_tree_view_get_selection (handle); OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); OS.gtk_tree_view_set_cursor (handle, path , null, false); OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); OS.gtk_tree_path_free (path ); } } } /* * 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; } override int gtk_button_release_event (GtkWidget* widget, GdkEventButton* event) { auto window = OS.GDK_EVENT_WINDOW (event); if (window !is OS.gtk_tree_view_get_bin_window (handle)) return 0; return super.gtk_button_release_event (widget, event); } override int gtk_changed (GtkWidget* widget) { TreeItem item = getFocusItem (); if (item !is null) { Event event = new Event (); event.item = item; postEvent (SWT.Selection, event); } return 0; } override int gtk_expand_collapse_cursor_row (GtkWidget* 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 !is 0 && open_all !is 0) expandAll = true; return 0; } override int gtk_key_press_event (GtkWidget* widget, GdkEventKey* keyEvent) { auto result = super.gtk_key_press_event (widget, keyEvent); if (result !is 0) return result; if (OS.GTK_VERSION < OS.buildVERSION (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. */ 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; } default: } } return result; } override int gtk_motion_notify_event (GtkWidget* widget, GdkEventMotion* event) { auto window = OS.GDK_EVENT_WINDOW (event); if (window !is OS.gtk_tree_view_get_bin_window (handle)) return 0; return super.gtk_motion_notify_event (widget, event); } override int gtk_popup_menu (GtkWidget* widget) { auto 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.buildVERSION (2, 6, 5) ? 1 : result; } override void gtk_row_activated (GtkTreeView* tree, GtkTreePath* path, GtkTreeViewColumn* column) { if (path is null) return; TreeItem item = null; GtkTreeIter iter; if (OS.gtk_tree_model_get_iter (modelHandle, &iter, path)) { int index; OS.gtk_tree_model_get1 (modelHandle, &iter, ID_COLUMN, cast(void**)&index); item = items [index ]; } Event event = new Event (); event.item = item; postEvent (SWT.DefaultSelection, event); return; } override int gtk_test_collapse_row ( GtkTreeView *tree, GtkTreeIter *iter, GtkTreePath *path) { int index ; OS.gtk_tree_model_get1 (modelHandle, iter, ID_COLUMN, cast(void**)&index); TreeItem item = items [index ]; Event event = new Event (); event.item = item; bool 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. */ bool 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, null, null, udTEST_COLLAPSE_ROW); OS.gtk_tree_view_collapse_row (handle, path); OS.g_signal_handlers_unblock_matched (handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udTEST_COLLAPSE_ROW); return 1; } return 0; } override int gtk_test_expand_row ( GtkTreeView *tree, GtkTreeIter *iter, GtkTreePath *path) { int index ; OS.gtk_tree_model_get1 (modelHandle, iter, ID_COLUMN, cast(void**)&index); TreeItem item = items [index ]; Event event = new Event (); event.item = item; bool 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. */ bool 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, null, null, udTEST_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, null, null, udTEST_EXPAND_ROW); return 1; } return 0; } override int gtk_toggled (int /*long*/ renderer, char* pathStr) { auto path = OS.gtk_tree_path_new_from_string (pathStr); if (path is null) return 0; TreeItem item = null; GtkTreeIter iter; if (OS.gtk_tree_model_get_iter (modelHandle, &iter, path)) { item = _getItem (&iter); } OS.gtk_tree_path_free (path); if (item !is null) { item.setChecked (!item.getChecked ()); Event event = new Event (); event.detail = SWT.CHECK; event.item = item; postEvent (SWT.Selection, event); } return 0; } override void gtk_widget_size_request (GtkWidget* 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 is 0) { super.gtk_widget_size_request (widget, requisition); return; } auto columns = OS.gtk_tree_view_get_columns (handle), list = columns; bool fixVisible = columns !is null; while (list !is null) { auto column = OS.g_list_data (list); if (OS.gtk_tree_view_column_get_visible (column)) { fixVisible = false; break; } list = OS.g_list_next (list); } GtkTreeViewColumn* columnHandle; if (fixVisible) { columnHandle = cast(GtkTreeViewColumn*)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 !is null) OS.g_list_free (columns); } void hideFirstColumn () { auto firstColumn = OS.gtk_tree_view_get_column (handle, 0); OS.gtk_tree_view_column_set_visible (firstColumn, false); } override void hookEvents () { super.hookEvents (); auto selection = OS.gtk_tree_view_get_selection(handle); OS.g_signal_connect_closure (selection, OS.changed.ptr, display.closures [CHANGED], false); OS.g_signal_connect_closure (handle, OS.row_activated.ptr, display.closures [ROW_ACTIVATED], false); OS.g_signal_connect_closure (handle, OS.test_expand_row.ptr, display.closures [TEST_EXPAND_ROW], false); OS.g_signal_connect_closure (handle, OS.test_collapse_row.ptr, display.closures [TEST_COLLAPSE_ROW], false); OS.g_signal_connect_closure (handle, OS.expand_collapse_cursor_row.ptr, display.closures [EXPAND_COLLAPSE_CURSOR_ROW], false); if (checkRenderer !is null) { OS.g_signal_connect_closure (checkRenderer, OS.toggled.ptr, 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 is null) error (SWT.ERROR_NULL_ARGUMENT); for (int i=0; i<columnCount; i++) { if (columns [i] is 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 is null) error (SWT.ERROR_NULL_ARGUMENT); if (item.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); int index = -1; auto path = OS.gtk_tree_model_get_path (modelHandle, item.handle); int depth = OS.gtk_tree_path_get_depth (path); if (depth is 1) { auto indices = OS.gtk_tree_path_get_indices (path); if (indices !is null) { index = indices[0]; } } OS.gtk_tree_path_free (path); return index; } override bool mnemonicHit (wchar key) { for (int i=0; i<columnCount; i++) { auto labelHandle = columns [i].labelHandle; if (labelHandle !is null && mnemonicHit (labelHandle, key)) return true; } return false; } override bool mnemonicMatch (wchar key) { for (int i=0; i<columnCount; i++) { auto labelHandle = columns [i].labelHandle; if (labelHandle !is null && mnemonicMatch (labelHandle, key)) return true; } return false; } override GdkDrawable* paintWindow () { OS.gtk_widget_realize (handle); return OS.gtk_tree_view_get_bin_window (handle); } void recreateRenderers () { if (checkRenderer !is null) { display.removeWidget (cast(GtkWidget*)checkRenderer); OS.g_object_unref (checkRenderer); checkRenderer = ownerDraw ? cast(GtkCellRenderer*)OS.g_object_new (display.gtk_cell_renderer_toggle_get_type(), null) : OS.gtk_cell_renderer_toggle_new (); if (checkRenderer is null) error (SWT.ERROR_NO_HANDLES); OS.g_object_ref (checkRenderer); display.addWidget (cast(GtkWidget*)checkRenderer, this); OS.g_signal_connect_closure (checkRenderer, OS.toggled.ptr, display.closures [TOGGLED], false); } if (columnCount is 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 (cast(GtkTreeViewColumn*)column.handle, column.modelIndex, i is 0, column.style); } } } override void redrawBackgroundImage () { Control control = findBackgroundControl (); if (control !is null && control.backgroundImage !is null) { redrawWidget (0, 0, 0, 0, true, false, false); } } override void register () { super.register (); display.addWidget (cast(GtkWidget*)OS.gtk_tree_view_get_selection (handle), this); if (checkRenderer !is null) display.addWidget (cast(GtkWidget*)checkRenderer, this); } void releaseItem (TreeItem item, bool release) { int index; OS.gtk_tree_model_get1 (modelHandle, item.handle, ID_COLUMN, cast(void**)&index); if (index is -1) return; if (release) item.release (false); items [index ] = null; } void releaseItems (GtkTreeIter* parentIter) { int index; GtkTreeIter iter; bool valid = cast(bool)OS.gtk_tree_model_iter_children (modelHandle, &iter, parentIter); while (valid) { releaseItems (&iter); if (!isDisposed ()) { OS.gtk_tree_model_get1 (modelHandle, &iter, ID_COLUMN, cast(void**)&index); if (index !is -1) { TreeItem item = items [index ]; if (item !is null) releaseItem (item, true); } } valid = cast(bool)OS.gtk_tree_model_iter_next (modelHandle, &iter); } } override void releaseChildren (bool destroy) { if (items !is null) { for (int i=0; i<items.length; i++) { TreeItem item = items [i]; if (item !is null && !item.isDisposed ()) { item.release (false); } } items = null; } if (columns !is null) { for (int i=0; i<columnCount; i++) { TreeColumn column = columns [i]; if (column !is null && !column.isDisposed ()) { column.release (false); } } columns = null; } super.releaseChildren (destroy); } override void releaseWidget () { super.releaseWidget (); if (modelHandle !is null) OS.g_object_unref (modelHandle); modelHandle = null; if (checkRenderer !is null) OS.g_object_unref (checkRenderer); checkRenderer = null; if (imageList !is null) imageList.dispose (); if (headerImageList !is null) headerImageList.dispose (); imageList = headerImageList = null; currentItem = null; } void remove (GtkTreeIter* 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); } auto selection = OS.gtk_tree_view_get_selection (handle); GtkTreeIter iter; int index = start; for (int i = start; i <= end; i++) { OS.gtk_tree_model_iter_nth_child (modelHandle, &iter, parentIter, index); int value; OS.gtk_tree_model_get1 (modelHandle, &iter, ID_COLUMN, cast(void**)&value); TreeItem item = value !is -1 ? items [value ] : null; if (item !is null && !item.isDisposed ()) { item.dispose (); } else { OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); OS.gtk_tree_store_remove (modelHandle, &iter); OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); } } } /** * 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 !is null && !item.isDisposed ()) item.release (false); } items = new TreeItem[4]; auto selection = OS.gtk_tree_view_get_selection (handle); OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); OS.gtk_tree_store_clear (modelHandle); OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); /* Disable searching when using VIRTUAL */ if ((style & SWT.VIRTUAL) !is 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.buildVERSION (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 is 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 is 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 is null) error (SWT.ERROR_NULL_ARGUMENT); if (eventTable is null) return; eventTable.unhook (SWT.Expand, listener); eventTable.unhook (SWT.Collapse, listener); } override void rendererGetSizeProc ( GtkCellRenderer *cell, GtkWidget *widget, GdkRectangle *cell_area, int *x_offset, int *y_offset, int *width, int *height) { auto g_class = OS.g_type_class_peek_parent (OS.G_OBJECT_GET_CLASS (cell)); GtkCellRendererClass* klass = cast(GtkCellRendererClass*)g_class; klass.get_size( cell, handle, cell_area, x_offset, y_offset, width, height); if (!ignoreSize && OS.GTK_IS_CELL_RENDERER_TEXT (cell)) { auto iter = cast(GtkTreeIter*)OS.g_object_get_qdata (cast(GObject*)cell, Display.SWT_OBJECT_INDEX2); TreeItem item = null; if (iter !is null) item = _getItem (iter); if (item !is null) { int columnIndex = 0; if (columnCount > 0) { auto columnHandle = cast(GtkTreeViewColumn*)OS.g_object_get_qdata (cast(GObject*)cell, Display.SWT_OBJECT_INDEX1); for (int i = 0; i < columnCount; i++) { if (columns [i].handle is cast(GtkWidget*)columnHandle) { columnIndex = i; break; } } } if (hooks (SWT.MeasureItem)) { int contentWidth, contentHeight; if (width !is null) contentWidth = *width; if (height !is null) contentHeight = *height; Image image = item.getImage (columnIndex); int imageWidth = 0; if (image !is null) { Rectangle bounds = image.getBounds (); imageWidth = bounds.width; } contentWidth += 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 ; event.height = contentHeight ; sendEvent (SWT.MeasureItem, event); gc.dispose (); contentWidth = event.width - imageWidth; if (contentHeight < event.height) contentHeight = event.height; if (width !is null) *width = contentWidth; if (height !is null) *height = contentHeight; } } } } override void rendererRenderProc ( GtkCellRenderer * cell, GdkDrawable * window, GtkWidget * widget, GdkRectangle *background_area, GdkRectangle *cell_area, GdkRectangle *expose_area, int flags) { TreeItem item = null; auto iter = cast(GtkTreeIter*)OS.g_object_get_qdata (cast(GObject*)cell, Display.SWT_OBJECT_INDEX2); if (iter !is null) item = _getItem (iter); auto columnHandle = cast(GtkTreeViewColumn*)OS.g_object_get_qdata (cast(GObject*)cell, Display.SWT_OBJECT_INDEX1); int columnIndex = 0; if (columnCount > 0) { for (int i = 0; i < columnCount; i++) { if (columns [i].handle is cast(GtkWidget*)columnHandle) { columnIndex = i; break; } } } if (item !is null) { if (OS.GTK_IS_CELL_RENDERER_TOGGLE (cell) || (OS.GTK_IS_CELL_RENDERER_PIXBUF (cell) && (columnIndex !is 0 || (style & SWT.CHECK) is 0))) { drawFlags = cast(int)/*64*/flags; drawState = SWT.FOREGROUND; void* ptr; OS.gtk_tree_model_get1 (modelHandle, item.handle, Tree.BACKGROUND_COLUMN, &ptr); if (ptr is null) { int modelIndex = columnCount is 0 ? Tree.FIRST_COLUMN : columns [columnIndex].modelIndex; OS.gtk_tree_model_get1 (modelHandle, item.handle, modelIndex + Tree.CELL_BACKGROUND, &ptr); } if (ptr !is null) drawState |= SWT.BACKGROUND; if ((flags & OS.GTK_CELL_RENDERER_SELECTED) !is 0) drawState |= SWT.SELECTED; if ((flags & OS.GTK_CELL_RENDERER_FOCUSED) !is 0) drawState |= SWT.FOCUSED; GdkRectangle rect; auto 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) is 0) { Control control = findBackgroundControl (); if (control !is null && control.backgroundImage !is null) { OS.gdk_window_clear_area (window, rect.x, rect.y, rect.width, rect.height); } } if (hooks (SWT.EraseItem)) { bool wasSelected = false; if ((drawState & SWT.SELECTED) !is 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) !is 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)); if ((style & SWT.MIRRORED) !is 0) rect.x = getClientWidth () - rect.width - rect.x; 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) !is 0) drawFlags |= OS.GTK_CELL_RENDERER_SELECTED; if ((drawState & SWT.FOCUSED) !is 0) drawFlags |= OS.GTK_CELL_RENDERER_FOCUSED; if ((drawState & SWT.SELECTED) !is 0) { auto style = OS.gtk_widget_get_style (widget); //TODO - parity and sorted OS.gtk_paint_flat_box (style, window, OS.GTK_STATE_SELECTED, OS.GTK_SHADOW_NONE, &rect, widget, "cell_odd".ptr, 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) !is 0 && (drawState & SWT.SELECTED) is 0) { GC gc = new GC (this); gc.setBackground (item.getBackground (columnIndex)); gc.fillRectangle (background_area.x, background_area.y, background_area.width, background_area.height); gc.dispose (); } if ((drawState & SWT.FOREGROUND) !is 0 || OS.GTK_IS_CELL_RENDERER_TOGGLE (cell)) { auto g_class = OS.g_type_class_peek_parent (OS.G_OBJECT_GET_CLASS (cell)); GtkCellRendererClass* klass = cast(GtkCellRendererClass*)g_class; if (drawForeground !is null && OS.GTK_IS_CELL_RENDERER_TEXT (cell)) { OS.g_object_set1 (cell, OS.foreground_gdk.ptr, cast(int)drawForeground); } klass.render( cell, window, handle, background_area, cell_area, expose_area, drawFlags); } if (item !is null) { if (OS.GTK_IS_CELL_RENDERER_TEXT (cell)) { if (hooks (SWT.PaintItem)) { GdkRectangle rect; auto 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.buildVERSION (2, 8, 18) && OS.gtk_tree_view_get_expander_column (handle) is columnHandle) { int buffer; OS.gtk_widget_style_get1 (handle, OS.expander_size.ptr, &buffer); rect.x += buffer + TreeItem.EXPANDER_EXTRA_PADDING; rect.width -= buffer + 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, contentWidth; 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 !is null) { Rectangle bounds = image.getBounds (); imageWidth = bounds.width; } contentX -= imageWidth; contentWidth += imageWidth; GC gc = new GC (this); if ((drawState & SWT.SELECTED) !is 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 !is null ? Color.gtk_new (display, drawForeground) : item.getForeground (columnIndex); gc.setForeground (foreground); } gc.setFont (item.getFont (columnIndex)); if ((style & SWT.MIRRORED) !is 0) rect.x = getClientWidth () - rect.width - rect.x; 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; event.y = rect.y; event.width = contentWidth; event.height = rect.height; event.detail = drawState; sendEvent (SWT.PaintItem, event); gc.dispose(); } } } //return result; } void resetCustomDraw () { if ((style & SWT.VIRTUAL) !is 0 || ownerDraw) return; int end = Math.max (1, columnCount); for (int i=0; i<end; i++) { bool customDraw = columnCount !is 0 ? columns [i].customDraw : firstCustomDraw; if (customDraw) { auto column = OS.gtk_tree_view_get_column (handle, i); auto textRenderer = getTextRenderer (column); OS.gtk_tree_view_column_set_cell_data_func (column, textRenderer, null, null, null); if (columnCount !is 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, bool before) { checkWidget (); if (item is null) { OS.gtk_tree_view_set_drag_dest_row(handle, null, OS.GTK_TREE_VIEW_DROP_BEFORE); return; } if (item.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); if (item.parent !is this) return; Rectangle rect = item.getBounds(); void* path; 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 is null) 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, position); OS.gtk_tree_path_free (path ); } void setItemCount (GtkTreeIter* parentIter, int count) { int itemCount = OS.gtk_tree_model_iter_n_children (modelHandle, parentIter); if (count is itemCount) return; bool isVirtual = (style & SWT.VIRTUAL) !is 0; if (!isVirtual) setRedraw (false); remove (parentIter, count, itemCount - 1); if (isVirtual) { for (int i=itemCount; i<count; i++) { GtkTreeIter iter; OS.gtk_tree_store_append (modelHandle, &iter, parentIter); OS.gtk_tree_store_set1 (modelHandle, &iter, ID_COLUMN, cast(void*)-1); } } 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 (null, count); } /** * Selects an item in the receiver. If the item was already * selected, it remains selected. * * @param item the item to be selected * * @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 3.4 */ public void select (TreeItem item) { checkWidget (); if (item is null) error (SWT.ERROR_NULL_ARGUMENT); if (item.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); bool fixColumn = showFirstColumn (); auto selection = OS.gtk_tree_view_get_selection (handle); OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); OS.gtk_tree_selection_select_iter (selection, item.handle); OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); if (fixColumn) hideFirstColumn (); } /** * 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) !is 0) return; bool fixColumn = showFirstColumn (); auto selection = OS.gtk_tree_view_get_selection (handle); OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); OS.gtk_tree_selection_select_all (selection); OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); if (fixColumn) hideFirstColumn (); } override void setBackgroundColor (GdkColor* color) { super.setBackgroundColor (color); OS.gtk_widget_modify_base (handle, 0, color); } override void setBackgroundPixmap (GdkPixmap* pixmap) { super.setBackgroundPixmap (pixmap); auto window = paintWindow (); if (window !is null) OS.gdk_window_set_back_pixmap (window, null, true); } override int setBounds (int x, int y, int width, int height, bool move, bool 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.buildVERSION (2, 6, 0) && OS.gtk_tree_model_iter_n_children (modelHandle, null) is 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_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(bool) * @see SWT#Move * * @since 3.2 */ public void setColumnOrder (int [] order) { checkWidget (); // SWT extension: allow null for zero length string //if (order is null) error (SWT.ERROR_NULL_ARGUMENT); if (columnCount is 0) { if (order.length > 0) error (SWT.ERROR_INVALID_ARGUMENT); return; } if (order.length !is columnCount) error (SWT.ERROR_INVALID_ARGUMENT); bool [] seen = new bool [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; } void* baseColumn; for (int i=0; i<order.length; i++) { auto column = columns [order [i]].handle; OS.gtk_tree_view_move_column_after (handle, column, baseColumn); baseColumn = column; } } override void setFontDescription (PangoFontDescription* font) { super.setFontDescription (font); TreeColumn[] columns = getColumns (); for (int i = 0; i < columns.length; i++) { if (columns[i] !is 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 (bool 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 (bool show) { checkWidget(); OS.gtk_tree_view_set_rules_hint (handle, show); } override void setParentBackground () { super.setParentBackground (); auto window = paintWindow (); if (window !is null) OS.gdk_window_set_back_pixmap (window, null, true); } override void setParentWindow (GtkWidget* widget) { auto window = eventWindow (); OS.gtk_widget_set_parent_window (widget, window); } void setScrollWidth (GtkTreeViewColumn* column, TreeItem item) { if (columnCount !is 0 || currentItem is 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) !is 0) && OS.GTK_VERSION < OS.buildVERSION (2, 3, 2)) return; int width = OS.gtk_tree_view_column_get_fixed_width (column); int itemWidth = calculateWidth (column, cast(GtkTreeIter*)item.handle, true); 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 is null) error (SWT.ERROR_NULL_ARGUMENT); setSelection ([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_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 (); // SWT extension: allow null for zero length string //if (items is null) error (SWT.ERROR_NULL_ARGUMENT); deselectAll (); int length = items.length; if (length is 0 || ((style & SWT.SINGLE) !is 0 && length > 1)) return; bool fixColumn = showFirstColumn (); auto selection = OS.gtk_tree_view_get_selection (handle); OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, null, null, udCHANGED); bool first = true; for (int i = 0; i < length; i++) { TreeItem item = items [i]; if (item is null) continue; if (item.isDisposed ()) break; if (item.parent !is this) continue; auto path = OS.gtk_tree_model_get_path (modelHandle, item.handle); showItem (path, false); if (first) { OS.gtk_tree_view_set_cursor (handle, path, null, 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, null, null, udCHANGED); 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 !is null && column.isDisposed ()) error (SWT.ERROR_INVALID_ARGUMENT); if (sortColumn !is null && !sortColumn.isDisposed()) { OS.gtk_tree_view_column_set_sort_indicator (sortColumn.handle, false); } sortColumn = column; if (sortColumn !is null && sortDirection !is SWT.NONE) { OS.gtk_tree_view_column_set_sort_indicator (sortColumn.handle, true); OS.gtk_tree_view_column_set_sort_order (sortColumn.handle, sortDirection is 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 !is SWT.UP && direction !is SWT.DOWN && direction !is SWT.NONE) return; sortDirection = direction; if (sortColumn is null || sortColumn.isDisposed ()) return; if (sortDirection is 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 is 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 is null) error (SWT.ERROR_NULL_ARGUMENT); if (item.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); if (item.parent !is this) return; auto path = OS.gtk_tree_model_get_path (modelHandle, item.handle); showItem (path, false); OS.gtk_tree_view_scroll_to_cell (handle, path, null, true, 0f, 0f); if (OS.GTK_VERSION < OS.buildVERSION (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; OS.gtk_tree_view_get_cell_area (handle, path, null, &cellRect); int tx, ty; 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); } 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 is null) error (SWT.ERROR_NULL_ARGUMENT); if (column.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); if (column.parent !is 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; OS.gtk_tree_view_get_cell_area (handle, null, column.handle, &cellRect); GdkRectangle visibleRect; 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); } } } bool 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++) { auto column = OS.gtk_tree_view_get_column (handle, i); if (OS.gtk_tree_view_column_get_visible (column)) return false; } auto 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 !is 0 && items [0] !is null) showItem (items [0]); } void showItem (GtkTreePath* path, bool scroll) { int depth = OS.gtk_tree_path_get_depth (path); if (depth > 1) { auto indicesPtr = OS.gtk_tree_path_get_indices (path); int [] indices = indicesPtr[ 0 .. depth - 1]; auto 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; OS.gtk_tree_view_get_cell_area (handle, path, null, &cellRect); bool isHidden = cellRect.y is 0 && cellRect.height is 0; int tx, ty; OS.gtk_tree_view_widget_to_tree_coords (handle, cellRect.x, cellRect.y, &tx, &ty); GdkRectangle visibleRect; OS.gtk_tree_view_get_visible_rect (handle, &visibleRect); if (!isHidden) { if (ty < visibleRect.y || ty + 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 !is 1, 0.5f, 0.0f); if (depth !is 1) { OS.gtk_tree_view_scroll_to_cell (handle, path, null, true, 0.5f, 0.0f); } else { if (ty < visibleRect.y ) { OS.gtk_tree_view_scroll_to_point (handle, -1, ty); } else { int height = Math.min (visibleRect.height, cellRect.height); if (ty + height > visibleRect.y + visibleRect.height) { OS.gtk_tree_view_scroll_to_point (handle, -1, ty + 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 is null) error (SWT.ERROR_NULL_ARGUMENT); if (item.isDisposed ()) error(SWT.ERROR_INVALID_ARGUMENT); if (item.parent !is this) return; auto path = OS.gtk_tree_model_get_path (modelHandle, item.handle); showItem (path, true); OS.gtk_tree_path_free (path); } override void treeSelectionProc ( GtkTreeModel *model, GtkTreePath *path, GtkTreeIter *iter, int[] selection, int length_) { if (selection !is null) { int index; OS.gtk_tree_model_get1 (modelHandle, iter, ID_COLUMN, cast(void**)&index); selection [length_] = index; } } override 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. */ auto parentHandle = parentingHandle (); auto list = OS.gtk_container_get_children (parentHandle); if (list is null) return; auto temp = list; while (temp !is null) { auto widget = OS.g_list_data (temp); if (widget !is null) OS.gtk_widget_queue_resize (widget); temp = OS.g_list_next (temp); } OS.g_list_free (list); } }