| /******************************************************************************* |
| * Copyright (c) 2000, 2008 IBM Corporation and others. |
| * All rights reserved. This program and the accompanying materials |
| * are made available under the terms of the Eclipse Public License v1.0 |
| * which accompanies this distribution, and is available at |
| * http://www.eclipse.org/legal/epl-v10.html |
| * |
| * Contributors: |
| * IBM Corporation - initial API and implementation |
| *******************************************************************************/ |
| package org.eclipse.swt.widgets; |
| |
| |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.internal.*; |
| import org.eclipse.swt.internal.gtk.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.events.*; |
| |
| /** |
| * Instances of this class represent a column in a tree widget. |
| * <p><dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>LEFT, RIGHT, CENTER</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd> Move, Resize, Selection</dd> |
| * </dl> |
| * </p><p> |
| * Note: Only one of the styles LEFT, RIGHT and CENTER may be specified. |
| * </p><p> |
| * IMPORTANT: This class is <em>not</em> intended to be subclassed. |
| * </p> |
| * |
| * @see <a href="http://www.eclipse.org/swt/snippets/#tree">Tree, TreeItem, TreeColumn snippets</a> |
| * @see <a href="http://www.eclipse.org/swt/">Sample code and further information</a> |
| * |
| * @since 3.1 |
| */ |
| public class TreeColumn extends Item { |
| int /*long*/ labelHandle, imageHandle, buttonHandle; |
| Tree parent; |
| int modelIndex, lastButton, lastTime, lastX, lastWidth; |
| boolean customDraw, useFixedWidth; |
| String toolTipText; |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>Tree</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 composite control which will be the parent of the new instance (cannot be null) |
| * @param style the style of control to construct |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the parent is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the parent</li> |
| * <li>ERROR_INVALID_SUBCLASS - if this class is not an allowed subclass</li> |
| * </ul> |
| * |
| * @see SWT#LEFT |
| * @see SWT#RIGHT |
| * @see SWT#CENTER |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public TreeColumn (Tree parent, int style) { |
| super (parent, checkStyle (style)); |
| this.parent = parent; |
| createWidget (parent.getColumnCount ()); |
| } |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>Tree</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> |
| * <p> |
| * Note that due to a restriction on some platforms, the first column |
| * is always left aligned. |
| * </p> |
| * @param parent a composite control which will be the parent of the new instance (cannot be null) |
| * @param style the style of control to construct |
| * @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#LEFT |
| * @see SWT#RIGHT |
| * @see SWT#CENTER |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public TreeColumn (Tree parent, int style, int index) { |
| super (parent, checkStyle (style)); |
| this.parent = parent; |
| createWidget (index); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the control is moved or resized, by sending |
| * it one of the messages defined in the <code>ControlListener</code> |
| * interface. |
| * |
| * @param listener the listener which should be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see ControlListener |
| * @see #removeControlListener |
| */ |
| public void addControlListener(ControlListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Resize,typedListener); |
| addListener (SWT.Move,typedListener); |
| } |
| |
| /** |
| * Adds the listener to the collection of listeners who will |
| * be notified when the control is selected by the user, by sending |
| * it one of the messages defined in the <code>SelectionListener</code> |
| * interface. |
| * <p> |
| * <code>widgetSelected</code> is called when the column header is selected. |
| * <code>widgetDefaultSelected</code> is not called. |
| * </p> |
| * |
| * @param listener the listener which should be notified when the control is selected by the user |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #removeSelectionListener |
| * @see SelectionEvent |
| */ |
| public void addSelectionListener (SelectionListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| TypedListener typedListener = new TypedListener (listener); |
| addListener (SWT.Selection,typedListener); |
| addListener (SWT.DefaultSelection,typedListener); |
| } |
| |
| static int checkStyle (int style) { |
| return checkBits (style, SWT.LEFT, SWT.CENTER, SWT.RIGHT, 0, 0, 0); |
| } |
| |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| void createWidget (int index) { |
| parent.createItem (this, index); |
| setOrientation (); |
| hookEvents (); |
| register (); |
| text = ""; |
| } |
| |
| void deregister() { |
| super.deregister (); |
| display.removeWidget (handle); |
| if (buttonHandle != 0) display.removeWidget (buttonHandle); |
| if (labelHandle != 0) display.removeWidget (labelHandle); |
| } |
| |
| void destroyWidget () { |
| parent.destroyItem (this); |
| releaseHandle (); |
| } |
| |
| /** |
| * Returns a value which describes the position of the |
| * text or image in the receiver. The value will be one of |
| * <code>LEFT</code>, <code>RIGHT</code> or <code>CENTER</code>. |
| * |
| * @return the alignment |
| * |
| * @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 getAlignment () { |
| checkWidget(); |
| if ((style & SWT.LEFT) != 0) return SWT.LEFT; |
| if ((style & SWT.CENTER) != 0) return SWT.CENTER; |
| if ((style & SWT.RIGHT) != 0) return SWT.RIGHT; |
| return SWT.LEFT; |
| } |
| |
| /** |
| * Gets the moveable attribute. A column that is |
| * not moveable cannot be reordered by the user |
| * by dragging the header but may be reordered |
| * by the programmer. |
| * |
| * @return the moveable attribute |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Tree#getColumnOrder() |
| * @see Tree#setColumnOrder(int[]) |
| * @see TreeColumn#setMoveable(boolean) |
| * @see SWT#Move |
| * |
| * @since 3.2 |
| */ |
| public boolean getMoveable() { |
| checkWidget(); |
| return OS.gtk_tree_view_column_get_reorderable (handle); |
| } |
| |
| /** |
| * 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; |
| } |
| |
| /** |
| * Gets the resizable attribute. A column that is |
| * not resizable cannot be dragged by the user but |
| * may be resized by the programmer. |
| * |
| * @return the resizable attribute |
| * |
| * @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 getResizable () { |
| checkWidget(); |
| return OS.gtk_tree_view_column_get_resizable (handle); |
| } |
| |
| /** |
| * Returns the receiver's tool tip text, or null if it has |
| * not been set. |
| * |
| * @return the receiver's tool tip 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> |
| * |
| * @since 3.2 |
| */ |
| public String getToolTipText () { |
| checkWidget(); |
| return toolTipText; |
| } |
| |
| /** |
| * Gets the width of the receiver. |
| * |
| * @return the width |
| * |
| * @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 getWidth () { |
| checkWidget(); |
| if (!OS.gtk_tree_view_column_get_visible (handle)) { |
| return 0; |
| } |
| if (useFixedWidth) return OS.gtk_tree_view_column_get_fixed_width (handle); |
| return OS.gtk_tree_view_column_get_width (handle); |
| } |
| |
| int /*long*/ gtk_clicked (int /*long*/ widget) { |
| /* |
| * There is no API to get a double click on a table column. Normally, when |
| * the mouse is double clicked, this is indicated by GDK_2BUTTON_PRESS |
| * but the table column sends the click signal on button release. The fix is to |
| * test for double click by remembering the last click time and mouse button |
| * and testing for the double click interval. |
| */ |
| boolean doubleClick = false; |
| boolean postEvent = true; |
| int /*long*/ eventPtr = OS.gtk_get_current_event (); |
| if (eventPtr != 0) { |
| GdkEventButton gdkEvent = new GdkEventButton (); |
| OS.memmove (gdkEvent, eventPtr, GdkEventButton.sizeof); |
| OS.gdk_event_free (eventPtr); |
| switch (gdkEvent.type) { |
| case OS.GDK_BUTTON_RELEASE: { |
| int clickTime = display.getDoubleClickTime (); |
| int eventTime = gdkEvent.time, eventButton = gdkEvent.button; |
| if (lastButton == eventButton && lastTime != 0 && Math.abs (lastTime - eventTime) <= clickTime) { |
| doubleClick = true; |
| } |
| lastTime = eventTime == 0 ? 1: eventTime; |
| lastButton = eventButton; |
| break; |
| } |
| case OS.GDK_MOTION_NOTIFY: { |
| /* |
| * Bug in GTK. Dragging a column in a GtkTreeView causes a clicked |
| * signal to be emitted even though the mouse button was never released. |
| * The fix to ignore the signal if the current GDK event is a motion notify. |
| * The GTK bug was fixed in version 2.6 |
| */ |
| if (OS.GTK_VERSION < OS.VERSION (2, 6, 0)) postEvent = false; |
| break; |
| } |
| } |
| } |
| if (postEvent) postEvent (doubleClick ? SWT.DefaultSelection : SWT.Selection); |
| return 0; |
| } |
| |
| int /*long*/ gtk_mnemonic_activate (int /*long*/ widget, int /*long*/ arg1) { |
| return parent.gtk_mnemonic_activate (widget, arg1); |
| } |
| |
| int /*long*/ gtk_size_allocate (int /*long*/ widget, int /*long*/ allocation) { |
| useFixedWidth = false; |
| int x = OS.GTK_WIDGET_X (widget); |
| int width = OS.GTK_WIDGET_WIDTH (widget); |
| if (x != lastX) { |
| lastX = x; |
| sendEvent (SWT.Move); |
| } |
| if (width != lastWidth) { |
| lastWidth = width; |
| sendEvent (SWT.Resize); |
| } |
| return 0; |
| } |
| |
| void hookEvents () { |
| super.hookEvents (); |
| OS.g_signal_connect_closure (handle, OS.clicked, display.closures [CLICKED], false); |
| if (buttonHandle != 0) OS.g_signal_connect_closure_by_id (buttonHandle, display.signalIds [SIZE_ALLOCATE], 0, display.closures [SIZE_ALLOCATE], false); |
| if (labelHandle != 0) OS.g_signal_connect_closure_by_id (labelHandle, display.signalIds [MNEMONIC_ACTIVATE], 0, display.closures [MNEMONIC_ACTIVATE], false); |
| } |
| |
| /** |
| * Causes the receiver to be resized to its preferred size. |
| * For a composite, this involves computing the preferred size |
| * from its layout, if there is one. |
| * |
| * @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 pack () { |
| checkWidget(); |
| int width = 0; |
| if (buttonHandle != 0) { |
| GtkRequisition requisition = new GtkRequisition (); |
| OS.gtk_widget_size_request (buttonHandle, requisition); |
| width = requisition.width; |
| } |
| if ((parent.style & SWT.VIRTUAL) != 0) { |
| //NOT DONE |
| } else { |
| int /*long*/ iter = OS.g_malloc (OS.GtkTreeIter_sizeof ()); |
| if (OS.gtk_tree_model_get_iter_first (parent.modelHandle, iter)) { |
| do { |
| width = Math.max (width, parent.calculateWidth (handle, iter, true)); |
| } while (OS.gtk_tree_model_iter_next(parent.modelHandle, iter)); |
| } |
| OS.g_free (iter); |
| } |
| setWidth(width); |
| } |
| |
| void register () { |
| super.register (); |
| display.addWidget (handle, this); |
| if (buttonHandle != 0) display.addWidget (buttonHandle, this); |
| if (labelHandle != 0) display.addWidget (labelHandle, this); |
| } |
| |
| void releaseHandle () { |
| super.releaseHandle (); |
| handle = buttonHandle = labelHandle = imageHandle = 0; |
| modelIndex = -1; |
| parent = null; |
| } |
| |
| void releaseParent () { |
| super.releaseParent (); |
| if (parent.sortColumn == this) { |
| parent.sortColumn = null; |
| } |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control is moved or resized. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see ControlListener |
| * @see #addControlListener |
| */ |
| public void removeControlListener (ControlListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Move, listener); |
| eventTable.unhook (SWT.Resize, listener); |
| } |
| |
| /** |
| * Removes the listener from the collection of listeners who will |
| * be notified when the control is selected by the user. |
| * |
| * @param listener the listener which should no longer be notified |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_NULL_ARGUMENT - if the listener is null</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see SelectionListener |
| * @see #addSelectionListener |
| */ |
| public void removeSelectionListener(SelectionListener listener) { |
| checkWidget(); |
| if (listener == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if (eventTable == null) return; |
| eventTable.unhook (SWT.Selection, listener); |
| eventTable.unhook (SWT.DefaultSelection,listener); |
| } |
| |
| /** |
| * Controls how text and images will be displayed in the receiver. |
| * The argument should be one of <code>LEFT</code>, <code>RIGHT</code> |
| * or <code>CENTER</code>. |
| * <p> |
| * Note that due to a restriction on some platforms, the first column |
| * is always left aligned. |
| * </p> |
| * @param alignment the new alignment |
| * |
| * @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 setAlignment (int alignment) { |
| checkWidget(); |
| if ((alignment & (SWT.LEFT | SWT.RIGHT | SWT.CENTER)) == 0) return; |
| int index = parent.indexOf (this); |
| if (index == -1 || index == 0) return; |
| style &= ~(SWT.LEFT | SWT.RIGHT | SWT.CENTER); |
| style |= alignment & (SWT.LEFT | SWT.RIGHT | SWT.CENTER); |
| parent.createRenderers (handle, modelIndex, index == 0, style); |
| } |
| |
| void setFontDescription (int /*long*/ font) { |
| OS.gtk_widget_modify_font (labelHandle, font); |
| OS.gtk_widget_modify_font (imageHandle, font); |
| } |
| |
| public void setImage (Image image) { |
| checkWidget (); |
| super.setImage (image); |
| if (image != null) { |
| ImageList headerImageList = parent.headerImageList; |
| if (headerImageList == null) { |
| headerImageList = parent.headerImageList = new ImageList (); |
| } |
| int imageIndex = headerImageList.indexOf (image); |
| if (imageIndex == -1) imageIndex = headerImageList.add (image); |
| int /*long*/ pixbuf = headerImageList.getPixbuf (imageIndex); |
| OS.gtk_image_set_from_pixbuf (imageHandle, pixbuf); |
| OS.gtk_widget_show (imageHandle); |
| } else { |
| OS.gtk_image_set_from_pixbuf (imageHandle, 0); |
| OS.gtk_widget_hide (imageHandle); |
| } |
| } |
| |
| /** |
| * Sets the moveable attribute. A column that is |
| * moveable can be reordered by the user by dragging |
| * the header. A column that is not moveable cannot be |
| * dragged by the user but may be reordered |
| * by the programmer. |
| * |
| * @param moveable the moveable attribute |
| * |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| * |
| * @see Tree#setColumnOrder(int[]) |
| * @see Tree#getColumnOrder() |
| * @see TreeColumn#getMoveable() |
| * @see SWT#Move |
| * |
| * @since 3.2 |
| */ |
| public void setMoveable (boolean moveable) { |
| checkWidget(); |
| OS.gtk_tree_view_column_set_reorderable (handle, moveable); |
| } |
| |
| void setOrientation() { |
| if ((parent.style & SWT.RIGHT_TO_LEFT) != 0) { |
| if (buttonHandle != 0) { |
| OS.gtk_widget_set_direction (buttonHandle, OS.GTK_TEXT_DIR_RTL); |
| OS.gtk_container_forall (buttonHandle, display.setDirectionProc, OS.GTK_TEXT_DIR_RTL); |
| } |
| } |
| } |
| |
| /** |
| * Sets the resizable attribute. A column that is |
| * not resizable cannot be dragged by the user but |
| * may be resized by the programmer. |
| * |
| * @param resizable the resize attribute |
| * |
| * @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 setResizable (boolean resizable) { |
| checkWidget(); |
| OS.gtk_tree_view_column_set_resizable (handle, resizable); |
| } |
| |
| public void setText (String string) { |
| checkWidget(); |
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT); |
| super.setText (string); |
| char [] chars = fixMnemonic (string); |
| byte [] buffer = Converter.wcsToMbcs (null, chars, true); |
| OS.gtk_label_set_text_with_mnemonic (labelHandle, buffer); |
| if (string.length () != 0) { |
| OS.gtk_widget_show (labelHandle); |
| } else { |
| OS.gtk_widget_hide (labelHandle); |
| } |
| } |
| |
| /** |
| * Sets the receiver's tool tip text to the argument, which |
| * may be null indicating that no tool tip text should be shown. |
| * |
| * @param string the new tool tip text (or null) |
| * |
| * @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 setToolTipText (String string) { |
| checkWidget(); |
| Shell shell = parent._getShell (); |
| setToolTipText (shell, string); |
| toolTipText = string; |
| } |
| |
| void setToolTipText (Shell shell, String newString) { |
| shell.setToolTipText (buttonHandle, newString); |
| } |
| |
| /** |
| * Sets the width of the receiver. |
| * |
| * @param width the new width |
| * |
| * @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 setWidth (int width) { |
| checkWidget(); |
| if (width < 0) return; |
| if (width == lastWidth) return; |
| if (width > 0) { |
| useFixedWidth = true; |
| OS.gtk_tree_view_column_set_fixed_width (handle, width); |
| } |
| /* |
| * Bug in GTK. For some reason, calling gtk_tree_view_column_set_visible() |
| * when the parent is not realized fails to show the column. The fix is to |
| * ensure that the table has been realized. |
| */ |
| if (width != 0) OS.gtk_widget_realize (parent.handle); |
| OS.gtk_tree_view_column_set_visible (handle, width != 0); |
| lastWidth = width; |
| sendEvent (SWT.Resize); |
| } |
| |
| } |