/******************************************************************************* * Copyright (c) 2000, 2009, 2012 IBM Corporation, Gerhardt Informatics Kft. 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 * Gerhardt Informatics Kft. - GEFGWT port *******************************************************************************/ package org.eclipse.swt.widgets; import org.eclipse.swt.SWT; import org.eclipse.swt.SWTException; import org.eclipse.swt.graphics.Color; import org.eclipse.swt.graphics.Font; import org.eclipse.swt.graphics.Image; import org.eclipse.swt.graphics.Rectangle; /** * 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; boolean cached, grayed; static final int EXPANDER_EXTRA_PADDING = 4; /** * Constructs a new instance of this class given its parent (which must be a * <code>Tree</code> or a <code>TreeItem</code>) and a style value * describing its behavior and appearance. The item is added to the end of * the items maintained by its parent. * <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 tree 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 * @see Widget#checkSubclass * @see Widget#getStyle */ public TreeItem(Tree parent, int style) { this(checkNull(parent), 0, style, -1, true); } /** * Constructs a new instance of this class given its parent (which must be a * <code>Tree</code> or a <code>TreeItem</code>), a style value describing * its behavior and appearance, and the index at which to place it in the * items maintained by its parent. * <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 tree control which will be the parent of the new instance * (cannot be null) * @param style * the style of control to construct * @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 */ public TreeItem(Tree parent, int style, int index) { this(checkNull(parent), 0, style, checkIndex(index), true); } /** * Constructs a new instance of this class given its parent (which must be a * <code>Tree</code> or a <code>TreeItem</code>) and a style value * describing its behavior and appearance. The item is added to the end of * the items maintained by its parent. * <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 parentItem * a tree 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 * @see Widget#checkSubclass * @see Widget#getStyle */ public TreeItem(TreeItem parentItem, int style) { this(checkNull(parentItem).parent, /* parentItem.handle */0, style, -1, true); } /** * Constructs a new instance of this class given its parent (which must be a * <code>Tree</code> or a <code>TreeItem</code>), a style value describing * its behavior and appearance, and the index at which to place it in the * items maintained by its parent. * <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 parentItem * a tree control which will be the parent of the new instance * (cannot be null) * @param style * the style of control to construct * @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 */ public TreeItem(TreeItem parentItem, int style, int index) { this(checkNull(parentItem).parent, /* parentItem.handle */0, style, checkIndex(index), true); } TreeItem(Tree parent, long /* int */parentIter, int style, int index, boolean create) { super(parent, style); } 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; } protected void checkSubclass() { if (!isValidSubclass()) error(SWT.ERROR_INVALID_SUBCLASS); } Color _getBackground(int index) { return null; } boolean _getChecked() { return false; } Color _getForeground() { return null; } Color _getForeground(int index) { return null; } Image _getImage(int index) { return null; } String _getText(int index) { return null; } void clear() { } /** * 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) { } /** * 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) { } void destroyWidget() { } /** * 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() { return null; } /** * 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) { return null; } /** * 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() { return null; } /** * Returns <code>true</code> if the receiver is checked, and false * otherwise. When the parent does not have the * <code>CHECK style, return false. * <p> * * @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() { 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() { return false; } /** * 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 style, return false. * <p> * * @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; } 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) { return null; } /** * 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() { return 0; } /** * 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) { return null; } /** * 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() { return null; } 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() { return null; } 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); 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) { return null; } /** * 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) { return 0; } void releaseChildren(boolean destroy) { } void releaseHandle() { } void releaseWidget() { super.releaseWidget(); font = null; cellFont = null; } /** * Removes all of the items from the receiver. * <p> * * @exception SWTException * <ul> * <li>ERROR_WIDGET_DISPOSED - if the receiver has been * disposed</li> <li>ERROR_THREAD_INVALID_ACCESS - if not * called from the thread that created the receiver</li> * </ul> * * @since 3.1 */ public void removeAll() { } /** * 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) { } /** * 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) { } /** * 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) { } /** * 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) { } /** * 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) { } /** * 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) { } /** * 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) { } /** * 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) { } /** * 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) { } /** * 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) { } 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) { } /** * Sets the receiver's text at a column * * @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) { } public void setText(String string) { checkWidget(); setText(0, string); } /** * Sets the text for multiple columns in the tree. * * @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); } } }