| /******************************************************************************* |
| * Copyright (c) 2000, 2019 IBM Corporation and others. |
| * |
| * This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License 2.0 |
| * which accompanies this distribution, and is available at |
| * https://www.eclipse.org/legal/epl-2.0/ |
| * |
| * SPDX-License-Identifier: EPL-2.0 |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.gtk.*; |
| import org.eclipse.swt.internal.gtk3.*; |
| |
| /** |
| * Instances of this class represent a selectable user interface object |
| * that represents a hierarchy of tree items in a tree widget. |
| * |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>(none)</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>(none)</dd> |
| * </dl> |
| * <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/">Sample code and further information</a> |
| * @noextend This class is not intended to be subclassed by clients. |
| */ |
| public class TreeItem extends Item { |
| Tree parent; |
| Font font; |
| Font[] cellFont; |
| String [] strings; |
| boolean cached, grayed, isExpanded, updated, settingData; |
| static final int EXPANDER_EXTRA_PADDING = 4; |
| |
| /** |
| * Constructs <code>TreeItem</code> and <em>inserts</em> it into <code>Tree</code>. |
| * Item is inserted as last direct child of the tree. |
| * <p> |
| * For bulk insert scenarios, see TreeItem#TreeItem(Tree,int,int) |
| * |
| * @param parent a tree control which will be the parent of the new instance (cannot be null) |
| * @param style no styles are currently supported, pass SWT.NONE |
| * |
| * @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 |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public TreeItem (Tree parent, int style) { |
| this (checkNull (parent), 0, style, -1, true); |
| } |
| |
| /** |
| * Constructs <code>TreeItem</code> and <em>inserts</em> it into <code>Tree</code>. |
| * Item is inserted as <code>index</code> direct child of the tree. |
| * <p> |
| * The fastest way to insert many items is: |
| * <ol> |
| * <li>Use {@link Tree#setRedraw} to disable drawing during bulk insert</li> |
| * <li>Insert every item at index 0 (insert them in reverse to get the same result)</li> |
| * </ol> |
| * |
| * @param parent a tree control which will be the parent of the new instance (cannot be null) |
| * @param style no styles are currently supported, pass SWT.NONE |
| * @param index the zero-relative index to store the receiver in its parent |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</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 |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| * @see Tree#setRedraw |
| */ |
| public TreeItem (Tree parent, int style, int index) { |
| this (checkNull (parent), 0, style, checkIndex (index), true); |
| } |
| |
| /** |
| * Constructs <code>TreeItem</code> and <em>inserts</em> it into <code>Tree</code>. |
| * Item is inserted as last direct child of the specified <code>TreeItem</code>. |
| * <p> |
| * For bulk insert scenarios, see TreeItem#TreeItem(TreeItem,int,int) |
| * |
| * @param parentItem a tree control which will be the parent of the new instance (cannot be null) |
| * @param style no styles are currently supported, pass SWT.NONE |
| * |
| * @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 |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public TreeItem (TreeItem parentItem, int style) { |
| this (checkNull (parentItem).parent, parentItem.handle, style, -1, true); |
| } |
| |
| /** |
| * Constructs <code>TreeItem</code> and <em>inserts</em> it into <code>Tree</code>. |
| * Item is inserted as <code>index</code> direct child of the specified <code>TreeItem</code>. |
| * <p> |
| * The fastest way to insert many items is: |
| * <ol> |
| * <li>Use {@link Tree#setRedraw} to disable drawing during bulk insert</li> |
| * <li>Insert child items while parent item is collapsed</li> |
| * <li>Insert every item at index 0 (insert them in reverse to get the same result)</li> |
| * </ol> |
| * |
| * @param parentItem a tree control which will be the parent of the new instance (cannot be null) |
| * @param style no styles are currently supported, pass SWT.NONE |
| * @param index the zero-relative index to store the receiver in its parent |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the parent (inclusive)</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 |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| * @see Tree#setRedraw |
| */ |
| public TreeItem (TreeItem parentItem, int style, int index) { |
| this (checkNull (parentItem).parent, parentItem.handle, style, checkIndex (index), true); |
| } |
| |
| TreeItem (Tree parent, long parentIter, int style, int index, boolean create) { |
| super (parent, style); |
| this.parent = parent; |
| if (create) { |
| parent.createItem (this, parentIter, index); |
| } else { |
| handle = OS.g_malloc (GTK.GtkTreeIter_sizeof ()); |
| GTK.gtk_tree_model_iter_nth_child (parent.modelHandle, handle, parentIter, index); |
| } |
| } |
| |
| static int checkIndex (int index) { |
| if (index < 0) SWT.error (SWT.ERROR_INVALID_RANGE); |
| return index; |
| } |
| |
| static TreeItem checkNull (TreeItem item) { |
| if (item == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| return item; |
| } |
| |
| static Tree checkNull (Tree control) { |
| if (control == null) SWT.error (SWT.ERROR_NULL_ARGUMENT); |
| return control; |
| } |
| |
| @Override |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| Color _getBackground () { |
| long [] ptr = new long [1]; |
| GTK.gtk_tree_model_get (parent.modelHandle, handle, Tree.BACKGROUND_COLUMN, ptr, -1); |
| if (ptr [0] == 0) return parent.getBackground (); |
| GdkRGBA gdkRGBA = new GdkRGBA (); |
| OS.memmove(gdkRGBA, ptr [0], GdkRGBA.sizeof); |
| GDK.gdk_rgba_free (ptr [0]); |
| return Color.gtk_new(display, gdkRGBA); |
| } |
| |
| Color _getBackground (int index) { |
| int count = Math.max (1, parent.columnCount); |
| if (0 > index || index > count - 1) return _getBackground (); |
| long [] ptr = new long [1]; |
| int modelIndex = parent.columnCount == 0 ? Tree.FIRST_COLUMN : parent.columns [index].modelIndex; |
| GTK.gtk_tree_model_get (parent.modelHandle, handle, modelIndex + Tree.CELL_BACKGROUND, ptr, -1); |
| if (ptr [0] == 0) return _getBackground (); |
| GdkRGBA gdkRGBA = new GdkRGBA (); |
| OS.memmove(gdkRGBA, ptr [0], GdkRGBA.sizeof); |
| GDK.gdk_rgba_free (ptr [0]); |
| return Color.gtk_new(display, gdkRGBA); |
| } |
| |
| boolean _getChecked () { |
| int [] ptr = new int [1]; |
| GTK.gtk_tree_model_get (parent.modelHandle, handle, Tree.CHECKED_COLUMN, ptr, -1); |
| return ptr [0] != 0; |
| } |
| |
| Color _getForeground () { |
| long [] ptr = new long [1]; |
| GTK.gtk_tree_model_get (parent.modelHandle, handle, Tree.FOREGROUND_COLUMN, ptr, -1); |
| if (ptr [0] == 0) return parent.getForeground (); |
| GdkRGBA gdkRGBA = new GdkRGBA (); |
| OS.memmove(gdkRGBA, ptr [0], GdkRGBA.sizeof); |
| GDK.gdk_rgba_free (ptr [0]); |
| return Color.gtk_new(display, gdkRGBA); |
| } |
| |
| Color _getForeground (int index) { |
| int count = Math.max (1, parent.columnCount); |
| if (0 > index || index > count - 1) return _getForeground (); |
| long [] ptr = new long [1]; |
| int modelIndex = parent.columnCount == 0 ? Tree.FIRST_COLUMN : parent.columns [index].modelIndex; |
| GTK.gtk_tree_model_get (parent.modelHandle, handle, modelIndex + Tree.CELL_FOREGROUND, ptr, -1); |
| if (ptr [0] == 0) return _getForeground (); |
| GdkRGBA gdkRGBA = new GdkRGBA (); |
| OS.memmove(gdkRGBA, ptr [0], GdkRGBA.sizeof); |
| GDK.gdk_rgba_free (ptr [0]); |
| return Color.gtk_new(display, gdkRGBA); |
| } |
| |
| Image _getImage(int index) { |
| int count = Math.max(1, parent.getColumnCount()); |
| if (0 > index || index > count - 1) return null; |
| |
| long[] surfaceHandle = new long[1]; |
| int modelIndex = parent.columnCount == 0 ? Tree.FIRST_COLUMN : parent.columns[index].modelIndex; |
| GTK.gtk_tree_model_get (parent.modelHandle, handle, modelIndex + Tree.CELL_SURFACE, surfaceHandle, -1); |
| if (surfaceHandle[0] == 0) return null; |
| |
| int imageIndex = parent.imageList.indexOf(surfaceHandle[0]); |
| if (imageIndex == -1) { |
| return null; |
| } else { |
| return parent.imageList.get(imageIndex); |
| } |
| } |
| |
| String _getText (int index) { |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return ""; |
| long [] ptr = new long [1]; |
| int modelIndex = parent.columnCount == 0 ? Tree.FIRST_COLUMN : parent.columns [index].modelIndex; |
| GTK.gtk_tree_model_get (parent.modelHandle, handle, modelIndex + Tree.CELL_TEXT, ptr, -1); |
| if (ptr [0] == 0) return ""; //$NON-NLS-1$ |
| int length = C.strlen (ptr [0]); |
| byte[] buffer = new byte [length]; |
| C.memmove (buffer, ptr [0], length); |
| OS.g_free (ptr [0]); |
| return new String (Converter.mbcsToWcs (buffer)); |
| } |
| |
| void clear () { |
| if (parent.currentItem == this) return; |
| if (cached || (parent.style & SWT.VIRTUAL) == 0) { |
| int columnCount = GTK.gtk_tree_model_get_n_columns (parent.modelHandle); |
| /* the columns before FOREGROUND_COLUMN contain int values, subsequent columns contain pointers */ |
| for (int i=Tree.CHECKED_COLUMN; i<Tree.FOREGROUND_COLUMN; i++) { |
| GTK.gtk_tree_store_set (parent.modelHandle, handle, i, 0, -1); |
| } |
| for (int i=Tree.FOREGROUND_COLUMN; i<columnCount; i++) { |
| GTK.gtk_tree_store_set (parent.modelHandle, handle, i, (long )0, -1); |
| } |
| } |
| cached = false; |
| font = null; |
| strings = null; |
| cellFont = null; |
| } |
| |
| /** |
| * Clears the item at the given zero-relative index in the receiver. |
| * The text, icon and other attributes of the item are set to the default |
| * value. If the tree was created with the <code>SWT.VIRTUAL</code> style, |
| * these attributes are requested again as needed. |
| * |
| * @param index the index of the item to clear |
| * @param all <code>true</code> if all child items of the indexed item should be |
| * cleared recursively, and <code>false</code> otherwise |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_RANGE - if the index is not between 0 and the number of elements in the list minus 1 (inclusive)</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SWT#VIRTUAL |
| * @see SWT#SetData |
| * |
| * @since 3.2 |
| */ |
| public void clear (int index, boolean all) { |
| checkWidget (); |
| parent.clear (handle, index, all); |
| } |
| |
| /** |
| * Clears all the items in the receiver. The text, icon and other |
| * attributes of the items are set to their default values. If the |
| * tree was created with the <code>SWT.VIRTUAL</code> style, these |
| * attributes are requested again as needed. |
| * |
| * @param all <code>true</code> if all child items should be cleared |
| * recursively, and <code>false</code> otherwise |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SWT#VIRTUAL |
| * @see SWT#SetData |
| * |
| * @since 3.2 |
| */ |
| public void clearAll (boolean all) { |
| checkWidget (); |
| parent.clearAll (all, handle); |
| } |
| |
| @Override |
| void destroyWidget () { |
| parent.releaseItem (this, false); |
| parent.destroyItem (this); |
| releaseHandle (); |
| } |
| |
| /** |
| * Returns the receiver's background color. |
| * |
| * @return the background color |
| * |
| * @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 2.0 |
| * |
| */ |
| public Color getBackground () { |
| checkWidget (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return _getBackground (); |
| } |
| |
| /** |
| * Returns the background color at the given column index in the receiver. |
| * |
| * @param index the column index |
| * @return the background color |
| * |
| * @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 Color getBackground (int index) { |
| checkWidget (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return _getBackground (index); |
| } |
| |
| /** |
| * Returns a rectangle describing the receiver's size and location |
| * relative to its parent at a column in the tree. |
| * |
| * @param index the index that specifies the column |
| * @return the receiver's bounding column rectangle |
| * |
| * @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 Rectangle getBounds (int index) { |
| checkWidget (); |
| return DPIUtil.autoScaleDown (getBoundsInPixels (index)); |
| } |
| |
| Rectangle getBoundsInPixels (int index) { |
| // TODO fully test on early and later versions of GTK |
| checkWidget(); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| long parentHandle = parent.handle; |
| long column = 0; |
| if (index >= 0 && index < parent.columnCount) { |
| column = parent.columns [index].handle; |
| } else { |
| column = GTK.gtk_tree_view_get_column (parentHandle, index); |
| } |
| if (column == 0) return new Rectangle (0, 0, 0, 0); |
| long path = GTK.gtk_tree_model_get_path (parent.modelHandle, handle); |
| GTK.gtk_widget_realize (parentHandle); |
| GdkRectangle rect = new GdkRectangle (); |
| GTK.gtk_tree_view_get_cell_area (parentHandle, path, column, rect); |
| if ((parent.getStyle () & SWT.MIRRORED) != 0) rect.x = parent.getClientWidth () - rect.width - rect.x; |
| |
| GTK.gtk_tree_path_free (path); |
| |
| if (index == 0 && (parent.style & SWT.CHECK) != 0) { |
| int [] x = new int [1], w = new int [1]; |
| gtk_tree_view_column_cell_get_position (column, parent.checkRenderer, x, w); |
| rect.x += x [0] + w [0]; |
| rect.width -= x [0] + w [0]; |
| } |
| int width = GTK.gtk_tree_view_column_get_visible (column) ? rect.width + 1 : 0; |
| Rectangle r = new Rectangle (rect.x, rect.y, width, rect.height + 1); |
| return r; |
| } |
| |
| /** |
| * Returns a rectangle describing the size and location of the receiver's |
| * text relative to its parent. |
| * |
| * @return the bounding rectangle of the receiver's text |
| * |
| * @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 Rectangle getBounds () { |
| checkWidget (); |
| return DPIUtil.autoScaleDown (getBoundsInPixels ()); |
| } |
| |
| Rectangle getBoundsInPixels () { |
| // TODO fully test on early and later versions of GTK |
| // shifted a bit too far right on later versions of GTK - however, old Tree also had this problem |
| checkWidget (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| long parentHandle = parent.handle; |
| long column = GTK.gtk_tree_view_get_column (parentHandle, 0); |
| if (column == 0) return new Rectangle (0, 0, 0, 0); |
| long textRenderer = parent.getTextRenderer (column); |
| long pixbufRenderer = parent.getPixbufRenderer (column); |
| if (textRenderer == 0 || pixbufRenderer == 0) return new Rectangle (0, 0, 0, 0); |
| |
| long path = GTK.gtk_tree_model_get_path (parent.modelHandle, handle); |
| GTK.gtk_widget_realize (parentHandle); |
| |
| boolean isExpander = GTK.gtk_tree_model_iter_n_children (parent.modelHandle, handle) > 0; |
| boolean isExpanded = GTK.gtk_tree_view_row_expanded (parentHandle, path); |
| GTK.gtk_tree_view_column_cell_set_cell_data (column, parent.modelHandle, handle, isExpander, isExpanded); |
| |
| GdkRectangle rect = new GdkRectangle (); |
| GTK.gtk_tree_view_get_cell_area (parentHandle, path, column, rect); |
| if ((parent.getStyle () & SWT.MIRRORED) != 0) rect.x = parent.getClientWidth () - rect.width - rect.x; |
| int right = rect.x + rect.width; |
| |
| int [] x = new int [1], w = new int [1]; |
| parent.ignoreSize = true; |
| gtk_cell_renderer_get_preferred_size (textRenderer, parentHandle, w, null); |
| parent.ignoreSize = false; |
| rect.width = w [0]; |
| int [] buffer = new int [1]; |
| GTK.gtk_tree_path_free (path); |
| |
| int horizontalSeparator; |
| if (GTK.GTK4) { |
| long separator = GTK.gtk_separator_new(GTK.GTK_ORIENTATION_HORIZONTAL); |
| GtkAllocation allocation = new GtkAllocation (); |
| GTK.gtk_widget_get_allocation(separator, allocation); |
| horizontalSeparator = allocation.height; |
| } else { |
| GTK3.gtk_widget_style_get (parentHandle, OS.horizontal_separator, buffer, 0); |
| horizontalSeparator = buffer[0]; |
| } |
| rect.x += horizontalSeparator; |
| |
| gtk_tree_view_column_cell_get_position (column, textRenderer, x, null); |
| rect.x += x [0]; |
| if (parent.columnCount > 0) { |
| if (rect.x + rect.width > right) { |
| rect.width = Math.max (0, right - rect.x); |
| } |
| } |
| int width = GTK.gtk_tree_view_column_get_visible (column) ? rect.width + 1 : 0; |
| Rectangle r = new Rectangle (rect.x, rect.y, width, rect.height + 1); |
| return r; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is checked, |
| * and false otherwise. When the parent does not have |
| * the <code>CHECK</code> style, return false. |
| * |
| * @return the checked 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> |
| */ |
| public boolean getChecked () { |
| checkWidget(); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| if ((parent.style & SWT.CHECK) == 0) return false; |
| return _getChecked (); |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is expanded, |
| * and false otherwise. |
| * <p> |
| * |
| * @return the expanded 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> |
| */ |
| public boolean getExpanded () { |
| checkWidget(); |
| long path = GTK.gtk_tree_model_get_path (parent.modelHandle, handle); |
| boolean answer = GTK.gtk_tree_view_row_expanded (parent.handle, path); |
| GTK.gtk_tree_path_free (path); |
| return answer; |
| } |
| |
| /** |
| * Returns the font that the receiver will use to paint textual information for this item. |
| * |
| * @return the receiver's font |
| * |
| * @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 3.0 |
| */ |
| public Font getFont () { |
| checkWidget (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return font != null ? font : parent.getFont (); |
| } |
| |
| /** |
| * Returns the font that the receiver will use to paint textual information |
| * for the specified cell in this item. |
| * |
| * @param index the column index |
| * @return the receiver's font |
| * |
| * @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 Font getFont (int index) { |
| checkWidget (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| int count = Math.max (1, parent.columnCount); |
| if (0 > index || index > count - 1) return getFont (); |
| if (cellFont == null || cellFont [index] == null) return getFont (); |
| return cellFont [index]; |
| } |
| |
| |
| /** |
| * Returns the foreground color that the receiver will use to draw. |
| * |
| * @return the receiver's foreground color |
| * |
| * @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 2.0 |
| * |
| */ |
| public Color getForeground () { |
| checkWidget (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return _getForeground (); |
| } |
| |
| /** |
| * |
| * Returns the foreground color at the given column index in the receiver. |
| * |
| * @param index the column index |
| * @return the foreground color |
| * |
| * @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 Color getForeground (int index) { |
| checkWidget (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return _getForeground (index); |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is grayed, |
| * and false otherwise. When the parent does not have |
| * the <code>CHECK</code> style, return false. |
| * |
| * @return the grayed state of the checkbox |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public boolean getGrayed () { |
| checkWidget (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| if ((parent.style & SWT.CHECK) == 0) return false; |
| return grayed; |
| } |
| |
| @Override |
| public Image getImage () { |
| checkWidget (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return getImage (0); |
| } |
| |
| /** |
| * Returns the image stored at the given column index in the receiver, |
| * or null if the image has not been set or if the column does not exist. |
| * |
| * @param index the column index |
| * @return the image stored at the given column index 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> |
| * |
| * @since 3.1 |
| */ |
| public Image getImage (int index) { |
| checkWidget (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return _getImage (index); |
| } |
| |
| /** |
| * Returns a rectangle describing the size and location |
| * relative to its parent of an image at a column in the |
| * tree. |
| * |
| * @param index the index that specifies the column |
| * @return the receiver's bounding image rectangle |
| * |
| * @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 Rectangle getImageBounds (int index) { |
| checkWidget (); |
| return DPIUtil.autoScaleDown(getImageBoundsInPixels(index)); |
| } |
| |
| Rectangle getImageBoundsInPixels (int index) { |
| // TODO fully test on early and later versions of GTK |
| checkWidget (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| long parentHandle = parent.handle; |
| long column = 0; |
| if (index >= 0 && index < parent.getColumnCount ()) { |
| column = parent.columns [index].handle; |
| } else { |
| column = GTK.gtk_tree_view_get_column (parentHandle, index); |
| } |
| if (column == 0) return new Rectangle (0, 0, 0, 0); |
| long pixbufRenderer = parent.getPixbufRenderer (column); |
| if (pixbufRenderer == 0) return new Rectangle (0, 0, 0, 0); |
| GdkRectangle rect = new GdkRectangle (); |
| long path = GTK.gtk_tree_model_get_path (parent.modelHandle, handle); |
| GTK.gtk_widget_realize (parentHandle); |
| GTK.gtk_tree_view_get_cell_area (parentHandle, path, column, rect); |
| if ((parent.getStyle () & SWT.MIRRORED) != 0) rect.x = parent.getClientWidth () - rect.width - rect.x; |
| GTK.gtk_tree_path_free (path); |
| /* |
| * Feature in GTK. When a pixbufRenderer has size of 0x0, gtk_tree_view_column_cell_get_position |
| * returns a position of 0 as well. This causes offset issues meaning that images/widgets/etc. |
| * can be placed over the text. We need to account for the base case of a pixbufRenderer that has |
| * yet to be sized, as per Bug 469277 & 476419. NOTE: this change has been ported to Tables since Tables/Trees both |
| * use the same underlying GTK structure. |
| */ |
| int [] x = new int [1], w = new int [1]; |
| gtk_tree_view_column_cell_get_position (column, pixbufRenderer, x, w); |
| if (parent.pixbufSizeSet) { |
| if (x [0] > 0) { |
| rect.x += x [0]; |
| } |
| } else { |
| /* |
| * If the size of the pixbufRenderer hasn't been set, we need to take into account the |
| * position of the textRenderer, to ensure images/widgets/etc. aren't placed over the TreeItem's |
| * text. |
| */ |
| long textRenderer = parent.getTextRenderer (column); |
| if (textRenderer == 0) return new Rectangle (0, 0, 0, 0); |
| int [] xText = new int [1], wText = new int [1]; |
| gtk_tree_view_column_cell_get_position (column, textRenderer, xText, wText); |
| rect.x += xText [0]; |
| } |
| rect.width = w [0]; |
| int width = GTK.gtk_tree_view_column_get_visible (column) ? rect.width : 0; |
| Rectangle r = new Rectangle (rect.x, rect.y, width, rect.height + 1); |
| /* |
| * On GTK4 the header is included in the entire widget's surface, so we must subtract |
| * its size from the y-coordinate. This does not apply on GTK3 as the header and |
| * "main-widget" have separate GdkWindows. |
| */ |
| if (parent!= null && parent.getHeaderVisible () && GTK.GTK4) { |
| r.y += parent.getHeaderHeight(); |
| } |
| return r; |
| } |
| |
| /** |
| * Returns the number of items contained in the receiver |
| * that are direct item children of the receiver. |
| * |
| * @return the number of items |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public int getItemCount () { |
| checkWidget(); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return GTK.gtk_tree_model_iter_n_children (parent.modelHandle, 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 (index < 0) error (SWT.ERROR_INVALID_RANGE); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| int itemCount = GTK.gtk_tree_model_iter_n_children (parent.modelHandle, handle); |
| if (index >= itemCount) error (SWT.ERROR_INVALID_RANGE); |
| return parent._getItem (handle, index); |
| } |
| |
| /** |
| * Returns a (possibly empty) array of <code>TreeItem</code>s which |
| * are the direct item children of the receiver. |
| * <p> |
| * Note: This is not the actual structure used by the receiver |
| * to maintain its list of items, so modifying the array will |
| * not affect the receiver. |
| * </p> |
| * |
| * @return the 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> |
| */ |
| public TreeItem [] getItems () { |
| checkWidget(); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return parent.getItems (handle); |
| } |
| |
| @Override |
| String getNameText () { |
| if ((parent.style & SWT.VIRTUAL) != 0) { |
| if (!cached) return "*virtual*"; //$NON-NLS-1$ |
| } |
| return super.getNameText (); |
| } |
| |
| /** |
| * Returns the receiver's parent, which must be a <code>Tree</code>. |
| * |
| * @return the receiver's parent |
| * |
| * @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 Tree getParent () { |
| checkWidget (); |
| return parent; |
| } |
| |
| /** |
| * 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(); |
| long path = GTK.gtk_tree_model_get_path (parent.modelHandle, handle); |
| TreeItem item = null; |
| int depth = GTK.gtk_tree_path_get_depth (path); |
| if (depth > 1) { |
| GTK.gtk_tree_path_up (path); |
| long iter = OS.g_malloc (GTK.GtkTreeIter_sizeof ()); |
| if (GTK.gtk_tree_model_get_iter (parent.modelHandle, iter, path)) { |
| item = parent._getItem (iter); |
| } |
| OS.g_free (iter); |
| } |
| GTK.gtk_tree_path_free (path); |
| return item; |
| } |
| |
| @Override |
| public String getText () { |
| checkWidget (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| return getText (0); |
| } |
| |
| /** |
| * Returns the text stored at the given column index in the receiver, |
| * or empty string if the text has not been set. |
| * |
| * @param index the column index |
| * @return the text stored at the given column index 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> |
| * |
| * @since 3.1 |
| */ |
| public String getText (int index) { |
| checkWidget (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| if (strings != null) { |
| if (0 <= index && index < strings.length) { |
| String string = strings [index]; |
| return string != null ? string : ""; |
| } |
| } |
| return _getText (index); |
| } |
| |
| /** |
| * Returns a rectangle describing the size and location |
| * relative to its parent of the text at a column in the |
| * tree. |
| * |
| * @param index the index that specifies the column |
| * @return the receiver's bounding text rectangle |
| * |
| * @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 3.3 |
| */ |
| public Rectangle getTextBounds (int index) { |
| checkWidget (); |
| return DPIUtil.autoScaleDown(getTextBoundsInPixels(index)); |
| } |
| |
| Rectangle getTextBoundsInPixels (int index) { |
| checkWidget (); |
| if (!parent.checkData (this)) error (SWT.ERROR_WIDGET_DISPOSED); |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return new Rectangle (0, 0, 0, 0); |
| // TODO fully test on early and later versions of GTK |
| // shifted a bit too far right on later versions of GTK - however, old Tree also had this problem |
| long parentHandle = parent.handle; |
| long column = 0; |
| if (index >= 0 && index < parent.columnCount) { |
| column = parent.columns [index].handle; |
| } else { |
| column = GTK.gtk_tree_view_get_column (parentHandle, index); |
| } |
| if (column == 0) return new Rectangle (0, 0, 0, 0); |
| long textRenderer = parent.getTextRenderer (column); |
| long pixbufRenderer = parent.getPixbufRenderer (column); |
| if (textRenderer == 0 || pixbufRenderer == 0) return new Rectangle (0, 0, 0, 0); |
| |
| long path = GTK.gtk_tree_model_get_path (parent.modelHandle, handle); |
| GTK.gtk_widget_realize (parentHandle); |
| |
| boolean isExpander = GTK.gtk_tree_model_iter_n_children (parent.modelHandle, handle) > 0; |
| boolean isExpanded = GTK.gtk_tree_view_row_expanded (parentHandle, path); |
| GTK.gtk_tree_view_column_cell_set_cell_data (column, parent.modelHandle, handle, isExpander, isExpanded); |
| |
| GdkRectangle rect = new GdkRectangle (); |
| GTK.gtk_tree_view_get_cell_area (parentHandle, path, column, rect); |
| if ((parent.getStyle () & SWT.MIRRORED) != 0) rect.x = parent.getClientWidth () - rect.width - rect.x; |
| int right = rect.x + rect.width; |
| |
| int [] x = new int [1], w = new int [1]; |
| parent.ignoreSize = true; |
| gtk_cell_renderer_get_preferred_size (textRenderer, parentHandle, w, null); |
| parent.ignoreSize = false; |
| int [] buffer = new int [1]; |
| GTK.gtk_tree_path_free (path); |
| |
| int horizontalSeparator; |
| if (GTK.GTK4) { |
| long separator = GTK.gtk_separator_new(GTK.GTK_ORIENTATION_HORIZONTAL); |
| GtkAllocation allocation = new GtkAllocation (); |
| GTK.gtk_widget_get_allocation(separator, allocation); |
| horizontalSeparator = allocation.height; |
| } else { |
| GTK3.gtk_widget_style_get (parentHandle, OS.horizontal_separator, buffer, 0); |
| horizontalSeparator = buffer[0]; |
| } |
| rect.x += horizontalSeparator; |
| gtk_tree_view_column_cell_get_position (column, textRenderer, x, null); |
| /* |
| * Fix for Eclipse bug 476562, we need to re-adjust the bounds for the text |
| * when the separator value is less than the width of the image. Previously |
| * images larger than 16px in width would be cut off on the right side. |
| * NOTE: this change has been ported to Tables since Tables/Trees both use the |
| * same underlying GTK structure. |
| */ |
| Image image = _getImage(index); |
| int imageWidth = 0; |
| if (image != null) { |
| if (DPIUtil.useCairoAutoScale()) { |
| imageWidth = image.getBounds ().width; |
| } else { |
| imageWidth = image.getBoundsInPixels ().width; |
| } |
| } |
| if (x [0] < imageWidth) { |
| rect.x += imageWidth; |
| } else { |
| rect.x += x [0]; |
| } |
| if (parent.columnCount > 0) { |
| if (rect.x + rect.width > right) { |
| rect.width = Math.max (0, right - rect.x); |
| } |
| } |
| int width = GTK.gtk_tree_view_column_get_visible (column) ? rect.width + 1 : 0; |
| return new Rectangle (rect.x, rect.y, width, rect.height + 1); |
| } |
| |
| /** |
| * Searches the receiver's list starting at the first item |
| * (index 0) until an item is found that is equal to the |
| * argument, and returns the index of that item. If no item |
| * is found, returns -1. |
| * |
| * @param item the search item |
| * @return the index of the item |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the item is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if the item has been disposed</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @since 3.1 |
| */ |
| public int indexOf (TreeItem item) { |
| checkWidget(); |
| if (item == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (item.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| int index = -1; |
| boolean isParent = false; |
| long currentPath = GTK.gtk_tree_model_get_path (parent.modelHandle, handle); |
| long parentPath = GTK.gtk_tree_model_get_path (parent.modelHandle, item.handle); |
| int depth = GTK.gtk_tree_path_get_depth (parentPath); |
| if (depth > 1 && GTK.gtk_tree_path_up(parentPath)) { |
| if (GTK.gtk_tree_path_compare(currentPath, parentPath) == 0) isParent = true; |
| } |
| GTK.gtk_tree_path_free (currentPath); |
| GTK.gtk_tree_path_free (parentPath); |
| if (!isParent) return index; |
| long path = GTK.gtk_tree_model_get_path (parent.modelHandle, item.handle); |
| if (depth > 1) { |
| long indices = GTK.gtk_tree_path_get_indices (path); |
| if (indices != 0) { |
| int[] temp = new int[depth]; |
| C.memmove (temp, indices, 4 * temp.length); |
| index = temp[temp.length - 1]; |
| } |
| } |
| GTK.gtk_tree_path_free (path); |
| return index; |
| } |
| |
| @Override |
| void releaseChildren (boolean destroy) { |
| if (destroy) { |
| parent.releaseItems (handle); |
| } |
| super.releaseChildren (destroy); |
| } |
| |
| @Override |
| void releaseHandle () { |
| if (handle != 0) OS.g_free (handle); |
| handle = 0; |
| super.releaseHandle (); |
| parent = null; |
| } |
| |
| @Override |
| void releaseWidget () { |
| super.releaseWidget (); |
| font = null; |
| cellFont = null; |
| strings = null; |
| } |
| |
| @Override |
| public void dispose () { |
| // Workaround to Bug489751, avoid selecting next node when selected node is disposed. |
| Tree tmpParent = null; |
| if (parent != null && parent.getItemCount() > 0 && parent.getSelectionCount() == 0) { |
| tmpParent = parent; |
| } |
| super.dispose(); |
| if (tmpParent != null && !tmpParent.isDisposed()) tmpParent.deselectAll(); |
| } |
| |
| /** |
| * 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> |
| * |
| * @since 3.1 |
| */ |
| public void removeAll () { |
| checkWidget (); |
| long modelHandle = parent.modelHandle; |
| int length = GTK.gtk_tree_model_iter_n_children (modelHandle, handle); |
| if (length == 0) return; |
| long iter = OS.g_malloc (GTK.GtkTreeIter_sizeof ()); |
| if (iter == 0) error (SWT.ERROR_NO_HANDLES); |
| if (parent.fixAccessibility ()) { |
| parent.ignoreAccessibility = true; |
| } |
| long selection = GTK.gtk_tree_view_get_selection (parent.handle); |
| int [] value = new int [1]; |
| while (GTK.gtk_tree_model_iter_children (modelHandle, iter, handle)) { |
| GTK.gtk_tree_model_get (modelHandle, iter, Tree.ID_COLUMN, value, -1); |
| TreeItem item = value [0] != -1 ? parent.items [value [0]] : null; |
| if (item != null && !item.isDisposed ()) { |
| item.dispose (); |
| } else { |
| OS.g_signal_handlers_block_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| GTK.gtk_tree_store_remove (modelHandle, iter); |
| OS.g_signal_handlers_unblock_matched (selection, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, CHANGED); |
| } |
| } |
| if (parent.fixAccessibility ()) { |
| parent.ignoreAccessibility = false; |
| OS.g_object_notify (parent.handle, OS.model); |
| } |
| OS.g_free (iter); |
| } |
| |
| /** |
| * Sets the receiver's background color to the color specified |
| * by the argument, or to the default system color for the item |
| * if the argument is null. |
| * |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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 2.0 |
| * |
| */ |
| public void setBackground (Color color) { |
| checkWidget (); |
| if (color != null && color.isDisposed ()) { |
| error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| if (_getBackground ().equals (color)) return; |
| GdkRGBA gdkRGBA = color != null ? color.handle : null; |
| GTK.gtk_tree_store_set (parent.modelHandle, handle, Tree.BACKGROUND_COLUMN, gdkRGBA, -1); |
| cached = true; |
| } |
| |
| /** |
| * Sets the background color at the given column index in the receiver |
| * to the color specified by the argument, or to the default system color for the item |
| * if the argument is null. |
| * |
| * @param index the column index |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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 setBackground (int index, Color color) { |
| checkWidget (); |
| if (color != null && color.isDisposed ()) { |
| error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| if (_getBackground (index).equals (color)) return; |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return; |
| int modelIndex = parent.columnCount == 0 ? Tree.FIRST_COLUMN : parent.columns [index].modelIndex; |
| GdkRGBA gdkRGBA = color != null ? color.handle : null; |
| GTK.gtk_tree_store_set (parent.modelHandle, handle, modelIndex + Tree.CELL_BACKGROUND, gdkRGBA, -1); |
| cached = true; |
| updated = true; |
| |
| if (color != null) { |
| boolean customDraw = (parent.columnCount == 0) ? parent.firstCustomDraw : parent.columns [index].customDraw; |
| if (!customDraw) { |
| if ((parent.style & SWT.VIRTUAL) == 0) { |
| long parentHandle = parent.handle; |
| long column = 0; |
| if (parent.columnCount > 0) { |
| column = parent.columns [index].handle; |
| } else { |
| column = GTK.gtk_tree_view_get_column (parentHandle, index); |
| } |
| if (column == 0) return; |
| long textRenderer = parent.getTextRenderer (column); |
| long imageRenderer = parent.getPixbufRenderer (column); |
| GTK.gtk_tree_view_column_set_cell_data_func (column, textRenderer, display.cellDataProc, parentHandle, 0); |
| GTK.gtk_tree_view_column_set_cell_data_func (column, imageRenderer, display.cellDataProc, parentHandle, 0); |
| } |
| if (parent.columnCount == 0) { |
| parent.firstCustomDraw = true; |
| } else { |
| parent.columns [index].customDraw = true; |
| } |
| } |
| } |
| } |
| |
| /** |
| * Sets the checked state of the receiver. |
| * <p> |
| * |
| * @param checked the new checked 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> |
| */ |
| public void setChecked (boolean checked) { |
| checkWidget(); |
| if ((parent.style & SWT.CHECK) == 0) return; |
| if (_getChecked () == checked) return; |
| GTK.gtk_tree_store_set (parent.modelHandle, handle, Tree.CHECKED_COLUMN, checked, -1); |
| /* |
| * GTK+'s "inconsistent" state does not match SWT's concept of grayed. To |
| * show checked+grayed differently from unchecked+grayed, we must toggle the |
| * grayed state on check and uncheck. |
| */ |
| GTK.gtk_tree_store_set (parent.modelHandle, handle, Tree.GRAYED_COLUMN, !checked ? false : grayed, -1); |
| cached = true; |
| } |
| |
| /** |
| * Sets the expanded state of the receiver. |
| * <p> |
| * |
| * @param expanded the new expanded 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> |
| */ |
| public void setExpanded (boolean expanded) { |
| checkWidget(); |
| long path = GTK.gtk_tree_model_get_path (parent.modelHandle, handle); |
| if (expanded != GTK.gtk_tree_view_row_expanded (parent.handle, path)) { |
| if (expanded) { |
| OS.g_signal_handlers_block_matched (parent.handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, TEST_EXPAND_ROW); |
| GTK.gtk_tree_view_expand_row (parent.handle, path, false); |
| OS.g_signal_handlers_unblock_matched (parent.handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, TEST_EXPAND_ROW); |
| } else { |
| OS.g_signal_handlers_block_matched (parent.handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, TEST_COLLAPSE_ROW); |
| GTK.gtk_widget_realize (parent.handle); |
| GTK.gtk_tree_view_collapse_row (parent.handle, path); |
| OS.g_signal_handlers_unblock_matched (parent.handle, OS.G_SIGNAL_MATCH_DATA, 0, 0, 0, 0, TEST_COLLAPSE_ROW); |
| } |
| } |
| GTK.gtk_tree_path_free (path); |
| isExpanded = expanded; |
| } |
| |
| |
| /** |
| * Sets the font that the receiver will use to paint textual information |
| * for this item to the font specified by the argument, or to the default font |
| * for that kind of control if the argument is null. |
| * |
| * @param font the new font (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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 3.0 |
| */ |
| public void setFont (Font font){ |
| checkWidget (); |
| if (font != null && font.isDisposed ()) { |
| error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| Font oldFont = this.font; |
| if (oldFont == font) return; |
| this.font = font; |
| if (oldFont != null && oldFont.equals (font)) return; |
| long fontHandle = font != null ? font.handle : 0; |
| GTK.gtk_tree_store_set (parent.modelHandle, handle, Tree.FONT_COLUMN, fontHandle, -1); |
| cached = true; |
| } |
| |
| /** |
| * Sets the font that the receiver will use to paint textual information |
| * for the specified cell in this item to the font specified by the |
| * argument, or to the default font for that kind of control if the |
| * argument is null. |
| * |
| * @param index the column index |
| * @param font the new font (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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 setFont (int index, Font font) { |
| checkWidget (); |
| if (font != null && font.isDisposed ()) { |
| error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return; |
| if (cellFont == null) { |
| if (font == null) return; |
| cellFont = new Font [count]; |
| } |
| Font oldFont = cellFont [index]; |
| if (oldFont == font) return; |
| cellFont [index] = font; |
| if (oldFont != null && oldFont.equals (font)) return; |
| |
| int modelIndex = parent.columnCount == 0 ? Tree.FIRST_COLUMN : parent.columns [index].modelIndex; |
| long fontHandle = font != null ? font.handle : 0; |
| GTK.gtk_tree_store_set (parent.modelHandle, handle, modelIndex + Tree.CELL_FONT, fontHandle, -1); |
| cached = true; |
| |
| if (font != null) { |
| boolean customDraw = (parent.columnCount == 0) ? parent.firstCustomDraw : parent.columns [index].customDraw; |
| if (!customDraw) { |
| if ((parent.style & SWT.VIRTUAL) == 0) { |
| long parentHandle = parent.handle; |
| long column = 0; |
| if (parent.columnCount > 0) { |
| column = parent.columns [index].handle; |
| } else { |
| column = GTK.gtk_tree_view_get_column (parentHandle, index); |
| } |
| if (column == 0) return; |
| long textRenderer = parent.getTextRenderer (column); |
| long imageRenderer = parent.getPixbufRenderer (column); |
| GTK.gtk_tree_view_column_set_cell_data_func (column, textRenderer, display.cellDataProc, parentHandle, 0); |
| GTK.gtk_tree_view_column_set_cell_data_func (column, imageRenderer, display.cellDataProc, parentHandle, 0); |
| } |
| if (parent.columnCount == 0) { |
| parent.firstCustomDraw = true; |
| } else { |
| parent.columns [index].customDraw = true; |
| } |
| } |
| } |
| } |
| |
| /** |
| * Sets the receiver's foreground color to the color specified |
| * by the argument, or to the default system color for the item |
| * if the argument is null. |
| * |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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 2.0 |
| * |
| */ |
| public void setForeground (Color color){ |
| checkWidget (); |
| if (color != null && color.isDisposed ()) { |
| error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| if (_getForeground ().equals (color)) return; |
| GdkRGBA gdkRGBA = color != null ? color.handle : null; |
| GTK.gtk_tree_store_set (parent.modelHandle, handle, Tree.FOREGROUND_COLUMN, gdkRGBA, -1); |
| cached = true; |
| } |
| |
| /** |
| * Sets the foreground color at the given column index in the receiver |
| * to the color specified by the argument, or to the default system color for the item |
| * if the argument is null. |
| * |
| * @param index the column index |
| * @param color the new color (or null) |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the argument 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 setForeground (int index, Color color){ |
| checkWidget (); |
| if (color != null && color.isDisposed ()) { |
| error (SWT.ERROR_INVALID_ARGUMENT); |
| } |
| if (_getForeground (index).equals (color)) return; |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return; |
| int modelIndex = parent.columnCount == 0 ? Tree.FIRST_COLUMN : parent.columns [index].modelIndex; |
| GdkRGBA gdkRGBA = color != null ? color.handle : null; |
| GTK.gtk_tree_store_set (parent.modelHandle, handle, modelIndex + Tree.CELL_FOREGROUND, gdkRGBA, -1); |
| cached = true; |
| updated = true; |
| |
| if (color != null) { |
| boolean customDraw = (parent.columnCount == 0) ? parent.firstCustomDraw : parent.columns [index].customDraw; |
| if (!customDraw) { |
| if ((parent.style & SWT.VIRTUAL) == 0) { |
| long parentHandle = parent.handle; |
| long column = 0; |
| if (parent.columnCount > 0) { |
| column = parent.columns [index].handle; |
| } else { |
| column = GTK.gtk_tree_view_get_column (parentHandle, index); |
| } |
| if (column == 0) return; |
| long textRenderer = parent.getTextRenderer (column); |
| long imageRenderer = parent.getPixbufRenderer (column); |
| GTK.gtk_tree_view_column_set_cell_data_func (column, textRenderer, display.cellDataProc, parentHandle, 0); |
| GTK.gtk_tree_view_column_set_cell_data_func (column, imageRenderer, display.cellDataProc, parentHandle, 0); |
| } |
| if (parent.columnCount == 0) { |
| parent.firstCustomDraw = true; |
| } else { |
| parent.columns [index].customDraw = true; |
| } |
| } |
| } |
| } |
| |
| /** |
| * Sets the grayed state of the checkbox for this item. This state change |
| * only applies if the Tree was created with the SWT.CHECK style. |
| * |
| * @param grayed the new grayed state of the checkbox |
| * |
| * @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 setGrayed (boolean grayed) { |
| checkWidget(); |
| if ((parent.style & SWT.CHECK) == 0) return; |
| if (this.grayed == grayed) return; |
| this.grayed = grayed; |
| /* |
| * GTK+'s "inconsistent" state does not match SWT's concept of grayed. |
| * Render checked+grayed as "inconsistent", unchecked+grayed as blank. |
| */ |
| int [] ptr = new int [1]; |
| GTK.gtk_tree_model_get (parent.modelHandle, handle, Tree.CHECKED_COLUMN, ptr, -1); |
| GTK.gtk_tree_store_set (parent.modelHandle, handle, Tree.GRAYED_COLUMN, ptr [0] == 0 ? false : grayed, -1); |
| cached = true; |
| } |
| |
| /** |
| * Sets the receiver's image at a column. |
| * |
| * @param index the column index |
| * @param image the new image |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the image 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 setImage(int index, Image image) { |
| checkWidget (); |
| if (image != null && image.isDisposed()) { |
| error(SWT.ERROR_INVALID_ARGUMENT); |
| } |
| if (image != null && image.type == SWT.ICON) { |
| if (image.equals(_getImage(index))) return; |
| } |
| int count = Math.max(1, parent.getColumnCount()); |
| if (0 > index || index > count - 1) return; |
| |
| long pixbuf = 0, surface = 0; |
| if (image != null) { |
| ImageList imageList = parent.imageList; |
| if (imageList == null) imageList = parent.imageList = new ImageList(); |
| int imageIndex = imageList.indexOf(image); |
| // When we create a blank image surface gets created with dimensions 0, 0. |
| // This call recreates the surface with correct dimensions |
| surface = ImageList.convertSurface(image); |
| if (imageIndex == -1) { |
| imageIndex = imageList.add(image); |
| } |
| surface = imageList.getSurface(imageIndex); |
| pixbuf = ImageList.createPixbuf(surface); |
| } |
| |
| int modelIndex = parent.columnCount == 0 ? Tree.FIRST_COLUMN : parent.columns [index].modelIndex; |
| long parentHandle = parent.handle; |
| long column = GTK.gtk_tree_view_get_column (parentHandle, index); |
| long pixbufRenderer = parent.getPixbufRenderer (column); |
| int [] currentWidth = new int [1]; |
| int [] currentHeight= new int [1]; |
| GTK.gtk_cell_renderer_get_fixed_size (pixbufRenderer, currentWidth, currentHeight); |
| if (!parent.pixbufSizeSet) { |
| if (image != null) { |
| int iWidth, iHeight; |
| if (DPIUtil.useCairoAutoScale()) { |
| iWidth = image.getBounds ().width; |
| iHeight = image.getBounds ().height; |
| } else { |
| iWidth = image.getBoundsInPixels ().width; |
| iHeight = image.getBoundsInPixels ().height; |
| } |
| if (iWidth > currentWidth [0] || iHeight > currentHeight [0]) { |
| GTK.gtk_cell_renderer_set_fixed_size (pixbufRenderer, iWidth, iHeight); |
| parent.pixbufSizeSet = true; |
| parent.pixbufHeight = iHeight; |
| parent.pixbufWidth = iWidth; |
| /* |
| * Feature in GTK: a Tree with the style SWT.VIRTUAL has |
| * fixed-height-mode enabled. This will limit the size of |
| * any cells, including renderers. In order to prevent |
| * images from disappearing/being cropped, we re-create |
| * the renderers when the first image is set. Fix for |
| * bug 480261. |
| */ |
| if ((parent.style & SWT.VIRTUAL) != 0) { |
| /* |
| * Only re-create SWT.CHECK renderers if this is the first column. |
| * Otherwise check-boxes will be rendered in columns they are not |
| * supposed to be rendered in. See bug 513761. |
| */ |
| boolean check = modelIndex == Tree.FIRST_COLUMN && (parent.style & SWT.CHECK) != 0; |
| parent.createRenderers(column, modelIndex, check, parent.style); |
| } |
| } |
| } |
| } else { |
| /* |
| * Bug 483112: We check to see if the cached value is greater than the size of the pixbufRenderer. |
| * If it is, then we change the size of the pixbufRenderer accordingly. |
| * Bug 489025: There is a corner case where the below is triggered when current(Width|Height) is -1, |
| * which results in icons being set to 0. Fix is to compare only positive sizes. |
| */ |
| if (parent.pixbufWidth > Math.max(currentWidth [0], 0) || parent.pixbufHeight > Math.max(currentHeight [0], 0)) { |
| GTK.gtk_cell_renderer_set_fixed_size (pixbufRenderer, parent.pixbufWidth, parent.pixbufHeight); |
| } |
| } |
| |
| GTK.gtk_tree_store_set(parent.modelHandle, handle, modelIndex + Tree.CELL_PIXBUF, pixbuf, -1); |
| GTK.gtk_tree_store_set(parent.modelHandle, handle, modelIndex + Tree.CELL_SURFACE, surface, -1); |
| cached = true; |
| updated = true; |
| } |
| |
| @Override |
| public void setImage (Image image) { |
| checkWidget (); |
| setImage (0, image); |
| } |
| |
| /** |
| * Sets the image for multiple columns in the tree. |
| * |
| * @param images the array of new images |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the array of images is null</li> |
| * <li>ERROR_INVALID_ARGUMENT - if one of the images 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 setImage (Image [] images) { |
| checkWidget (); |
| if (images == null) error (SWT.ERROR_NULL_ARGUMENT); |
| for (int i=0; i<images.length; i++) { |
| setImage (i, images [i]); |
| } |
| } |
| |
| /** |
| * Sets the number of child 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); |
| parent.setItemCount (handle, count); |
| } |
| |
| /** |
| * Sets the receiver's text at a column |
| * <p> |
| * Note: If control characters like '\n', '\t' etc. are used |
| * in the string, then the behavior is platform dependent. |
| * </p> |
| * @param index the column index |
| * @param string the new text |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the text 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 void setText (int index, String string) { |
| checkWidget (); |
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (strings == null) { |
| if (_getText (index).equals (string)) return; |
| } |
| else if ( getText (index).equals (string)) return; |
| |
| int count = Math.max (1, parent.getColumnCount ()); |
| if (0 > index || index > count - 1) return; |
| if (0 <= index && index < count) { |
| if (strings == null) strings = new String [count]; |
| if (string.equals (strings [index])) return; |
| strings [index] = string; |
| } |
| if ((string != null) && (string.length() > TEXT_LIMIT)) { |
| string = string.substring(0, TEXT_LIMIT - ELLIPSIS.length()) + ELLIPSIS; |
| } |
| byte[] buffer = Converter.wcsToMbcs (string, true); |
| int modelIndex = parent.columnCount == 0 ? Tree.FIRST_COLUMN : parent.columns [index].modelIndex; |
| GTK.gtk_tree_store_set (parent.modelHandle, handle, modelIndex + Tree.CELL_TEXT, buffer, -1); |
| cached = true; |
| updated = true; |
| } |
| |
| @Override |
| public void setText (String string) { |
| checkWidget (); |
| setText (0, string); |
| } |
| |
| /** |
| * Sets the text for multiple columns in the tree. |
| * <p> |
| * Note: If control characters like '\n', '\t' etc. are used |
| * in the string, then the behavior is platform dependent. |
| * </p> |
| * @param strings the array of new strings |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the text 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 void setText (String [] strings) { |
| checkWidget (); |
| if (strings == null) error (SWT.ERROR_NULL_ARGUMENT); |
| for (int i=0; i<strings.length; i++) { |
| String string = strings [i]; |
| if (string != null) setText (i, string); |
| } |
| } |
| } |