| /******************************************************************************* |
| * Copyright (c) 2000, 2015 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.internal.*; |
| import org.eclipse.swt.internal.win32.*; |
| import org.eclipse.swt.*; |
| import org.eclipse.swt.graphics.*; |
| import org.eclipse.swt.events.*; |
| |
| /** |
| * Instances of this class represent a selectable user interface object |
| * that represents a button in a tool bar. |
| * <dl> |
| * <dt><b>Styles:</b></dt> |
| * <dd>PUSH, CHECK, RADIO, SEPARATOR, DROP_DOWN</dd> |
| * <dt><b>Events:</b></dt> |
| * <dd>Selection</dd> |
| * </dl> |
| * <p> |
| * Note: Only one of the styles CHECK, PUSH, RADIO, SEPARATOR and DROP_DOWN |
| * 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/#toolbar">ToolBar, ToolItem 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 ToolItem extends Item { |
| ToolBar parent; |
| Control control; |
| String toolTipText; |
| Image disabledImage, hotImage; |
| Image disabledImage2; |
| int id; |
| short cx; |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>ToolBar</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#PUSH |
| * @see SWT#CHECK |
| * @see SWT#RADIO |
| * @see SWT#SEPARATOR |
| * @see SWT#DROP_DOWN |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public ToolItem (ToolBar parent, int style) { |
| super (parent, checkStyle (style)); |
| this.parent = parent; |
| parent.createItem (this, parent.getItemCount ()); |
| } |
| |
| /** |
| * Constructs a new instance of this class given its parent |
| * (which must be a <code>ToolBar</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 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#PUSH |
| * @see SWT#CHECK |
| * @see SWT#RADIO |
| * @see SWT#SEPARATOR |
| * @see SWT#DROP_DOWN |
| * @see Widget#checkSubclass |
| * @see Widget#getStyle |
| */ |
| public ToolItem (ToolBar parent, int style, int index) { |
| super (parent, checkStyle (style)); |
| this.parent = parent; |
| parent.createItem (this, index); |
| } |
| |
| /** |
| * 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> |
| * When <code>widgetSelected</code> is called when the mouse is over the arrow portion of a drop-down tool, |
| * the event object detail field contains the value <code>SWT.ARROW</code>. |
| * <code>widgetDefaultSelected</code> is not called. |
| * </p> |
| * <p> |
| * When the <code>SWT.RADIO</code> style bit is set, the <code>widgetSelected</code> method is |
| * also called when the receiver loses selection because another item in the same radio group |
| * was selected by the user. During <code>widgetSelected</code> the application can use |
| * <code>getSelection()</code> to determine the current selected state of the receiver. |
| * </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.PUSH, SWT.CHECK, SWT.RADIO, SWT.SEPARATOR, SWT.DROP_DOWN, 0); |
| } |
| |
| @Override |
| protected void checkSubclass () { |
| if (!isValidSubclass ()) error (SWT.ERROR_INVALID_SUBCLASS); |
| } |
| |
| void click (boolean dropDown) { |
| long /*int*/ hwnd = parent.handle; |
| if (OS.GetKeyState (OS.VK_LBUTTON) < 0) return; |
| int index = (int)/*64*/OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0); |
| RECT rect = new RECT (); |
| OS.SendMessage (hwnd, OS.TB_GETITEMRECT, index, rect); |
| int hotIndex = (int)/*64*/OS.SendMessage (hwnd, OS.TB_GETHOTITEM, 0, 0); |
| |
| /* |
| * In order to emulate all the processing that |
| * happens when a mnemonic key is pressed, fake |
| * a mouse press and release. This will ensure |
| * that radio and pull down items are handled |
| * properly. |
| */ |
| int y = rect.top + (rect.bottom - rect.top) / 2; |
| long /*int*/ lParam = OS.MAKELPARAM (dropDown ? rect.right - 1 : rect.left, y); |
| parent.ignoreMouse = true; |
| OS.SendMessage (hwnd, OS.WM_LBUTTONDOWN, 0, lParam); |
| OS.SendMessage (hwnd, OS.WM_LBUTTONUP, 0, lParam); |
| parent.ignoreMouse = false; |
| |
| if (hotIndex != -1) { |
| OS.SendMessage (hwnd, OS.TB_SETHOTITEM, hotIndex, 0); |
| } |
| } |
| |
| Widget [] computeTabList () { |
| if (isTabGroup ()) { |
| if (getEnabled ()) { |
| if ((style & SWT.SEPARATOR) != 0) { |
| if (control != null) return control.computeTabList(); |
| } else { |
| return new Widget [] {this}; |
| } |
| } |
| } |
| return new Widget [0]; |
| } |
| |
| @Override |
| void destroyWidget () { |
| parent.destroyItem (this); |
| releaseHandle (); |
| } |
| |
| /** |
| * Returns a rectangle describing the receiver's size and location |
| * relative to its parent. |
| * |
| * @return the receiver's bounding 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> |
| */ |
| public Rectangle getBounds () { |
| checkWidget(); |
| long /*int*/ hwnd = parent.handle; |
| int index = (int)/*64*/OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0); |
| RECT rect = new RECT (); |
| OS.SendMessage (hwnd, OS.TB_GETITEMRECT, index, rect); |
| int width = rect.right - rect.left; |
| int height = rect.bottom - rect.top; |
| return new Rectangle (rect.left, rect.top, width, height); |
| } |
| |
| /** |
| * Returns the control that is used to fill the bounds of |
| * the item when the item is a <code>SEPARATOR</code>. |
| * |
| * @return the control |
| * |
| * @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 Control getControl () { |
| checkWidget(); |
| return control; |
| } |
| |
| /** |
| * Returns the receiver's disabled image if it has one, or null |
| * if it does not. |
| * <p> |
| * The disabled image is displayed when the receiver is disabled. |
| * </p> |
| * |
| * @return the receiver's disabled image |
| * |
| * @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 Image getDisabledImage () { |
| checkWidget(); |
| return disabledImage; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is enabled, and |
| * <code>false</code> otherwise. A disabled control is typically |
| * not selectable from the user interface and draws with an |
| * inactive or "grayed" look. |
| * |
| * @return the receiver's enabled 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> |
| * |
| * @see #isEnabled |
| */ |
| public boolean getEnabled () { |
| checkWidget(); |
| if ((style & SWT.SEPARATOR) != 0) { |
| return (state & DISABLED) == 0; |
| } |
| long /*int*/ hwnd = parent.handle; |
| long /*int*/ fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0); |
| return (fsState & OS.TBSTATE_ENABLED) != 0; |
| } |
| |
| /** |
| * Returns the receiver's hot image if it has one, or null |
| * if it does not. |
| * <p> |
| * The hot image is displayed when the mouse enters the receiver. |
| * </p> |
| * |
| * @return the receiver's hot image |
| * |
| * @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 Image getHotImage () { |
| checkWidget(); |
| return hotImage; |
| } |
| |
| /** |
| * Returns the receiver's parent, which must be a <code>ToolBar</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 ToolBar getParent () { |
| checkWidget(); |
| return parent; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is selected, |
| * and false otherwise. |
| * <p> |
| * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, |
| * it is selected when it is checked (which some platforms draw as a |
| * pushed in button). If the receiver is of any other type, this method |
| * returns false. |
| * </p> |
| * |
| * @return the selection 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 getSelection () { |
| checkWidget(); |
| if ((style & (SWT.CHECK | SWT.RADIO)) == 0) return false; |
| long /*int*/ hwnd = parent.handle; |
| long /*int*/ fsState = OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0); |
| return (fsState & OS.TBSTATE_CHECKED) != 0; |
| } |
| |
| /** |
| * 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> |
| */ |
| 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(); |
| long /*int*/ hwnd = parent.handle; |
| int index = (int)/*64*/OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0); |
| RECT rect = new RECT (); |
| OS.SendMessage (hwnd, OS.TB_GETITEMRECT, index, rect); |
| return rect.right - rect.left; |
| } |
| |
| /** |
| * Returns <code>true</code> if the receiver is enabled and all |
| * of the receiver's ancestors are enabled, and <code>false</code> |
| * otherwise. A disabled control is typically not selectable from the |
| * user interface and draws with an inactive or "grayed" look. |
| * |
| * @return the receiver's enabled 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> |
| * |
| * @see #getEnabled |
| */ |
| public boolean isEnabled () { |
| checkWidget(); |
| return getEnabled () && parent.isEnabled (); |
| } |
| |
| boolean isTabGroup () { |
| ToolItem [] tabList = parent._getTabItemList (); |
| if (tabList != null) { |
| for (int i=0; i<tabList.length; i++) { |
| if (tabList [i] == this) return true; |
| } |
| } |
| if ((style & SWT.SEPARATOR) != 0) return true; |
| int index = parent.indexOf (this); |
| if (index == 0) return true; |
| ToolItem previous = parent.getItem (index - 1); |
| return (previous.getStyle () & SWT.SEPARATOR) != 0; |
| } |
| |
| @Override |
| void releaseWidget () { |
| super.releaseWidget (); |
| releaseImages (); |
| control = null; |
| toolTipText = null; |
| disabledImage = hotImage = null; |
| if (disabledImage2 != null) disabledImage2.dispose (); |
| disabledImage2 = null; |
| } |
| |
| @Override |
| void releaseHandle () { |
| super.releaseHandle (); |
| parent = null; |
| id = -1; |
| } |
| |
| void releaseImages () { |
| TBBUTTONINFO info = new TBBUTTONINFO (); |
| info.cbSize = TBBUTTONINFO.sizeof; |
| info.dwMask = OS.TBIF_IMAGE | OS.TBIF_STYLE; |
| long /*int*/ hwnd = parent.handle; |
| OS.SendMessage (hwnd, OS.TB_GETBUTTONINFO, id, info); |
| /* |
| * Feature in Windows. For some reason, a tool item that has |
| * the style BTNS_SEP does not return I_IMAGENONE when queried |
| * for an image index, despite the fact that no attempt has been |
| * made to assign an image to the item. As a result, operations |
| * on an image list that use the wrong index cause random results. |
| * The fix is to ensure that the tool item is not a separator |
| * before using the image index. Since separators cannot have |
| * an image and one is never assigned, this is not a problem. |
| */ |
| if ((info.fsStyle & OS.BTNS_SEP) == 0 && info.iImage != OS.I_IMAGENONE) { |
| ImageList imageList = parent.getImageList (); |
| ImageList hotImageList = parent.getHotImageList (); |
| ImageList disabledImageList = parent.getDisabledImageList(); |
| if (imageList != null) imageList.put (info.iImage, null); |
| if (hotImageList != null) hotImageList.put (info.iImage, null); |
| if (disabledImageList != null) disabledImageList.put (info.iImage, null); |
| } |
| } |
| |
| /** |
| * 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); |
| } |
| |
| void resizeControl () { |
| if (control != null && !control.isDisposed ()) { |
| /* |
| * Set the size and location of the control |
| * separately to minimize flashing in the |
| * case where the control does not resize |
| * to the size that was requested. This |
| * case can occur when the control is a |
| * combo box. |
| */ |
| Rectangle itemRect = getBounds (); |
| control.setSize (itemRect.width, itemRect.height); |
| Rectangle rect = control.getBounds (); |
| rect.x = itemRect.x + (itemRect.width - rect.width) / 2; |
| rect.y = itemRect.y + (itemRect.height - rect.height) / 2; |
| control.setLocation (rect.x, rect.y); |
| } |
| } |
| |
| void selectRadio () { |
| int index = 0; |
| ToolItem [] items = parent.getItems (); |
| while (index < items.length && items [index] != this) index++; |
| int i = index - 1; |
| while (i >= 0 && items [i].setRadioSelection (false)) --i; |
| int j = index + 1; |
| while (j < items.length && items [j].setRadioSelection (false)) j++; |
| setSelection (true); |
| } |
| |
| /** |
| * Sets the control that is used to fill the bounds of |
| * the item when the item is a <code>SEPARATOR</code>. |
| * |
| * @param control the new control |
| * |
| * @exception IllegalArgumentException <ul> |
| * <li>ERROR_INVALID_ARGUMENT - if the control has been disposed</li> |
| * <li>ERROR_INVALID_PARENT - if the control is not in the same widget tree</li> |
| * </ul> |
| * @exception SWTException <ul> |
| * <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed</li> |
| * <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver</li> |
| * </ul> |
| */ |
| public void setControl (Control control) { |
| checkWidget(); |
| if (control != null) { |
| if (control.isDisposed()) error (SWT.ERROR_INVALID_ARGUMENT); |
| if (control.parent != parent) error (SWT.ERROR_INVALID_PARENT); |
| } |
| if ((style & SWT.SEPARATOR) == 0) return; |
| this.control = control; |
| /* |
| * Feature in Windows. When a tool bar wraps, tool items |
| * with the style BTNS_SEP are used as wrap points. This |
| * means that controls that are placed on top of separator |
| * items are not positioned properly. Also, vertical tool |
| * bars are implemented using TB_SETROWS to set the number |
| * of rows. When a control is placed on top of a separator, |
| * the height of the separator does not grow. The fix in |
| * both cases is to change the tool item style from BTNS_SEP |
| * to BTNS_BUTTON, causing the item to wrap like a tool item |
| * button. The new tool item button is disabled to avoid key |
| * traversal and the image is set to I_IMAGENONE to avoid |
| * getting the first image from the image list. |
| */ |
| if ((parent.style & (SWT.WRAP | SWT.VERTICAL)) != 0) { |
| boolean changed = false; |
| long /*int*/ hwnd = parent.handle; |
| TBBUTTONINFO info = new TBBUTTONINFO (); |
| info.cbSize = TBBUTTONINFO.sizeof; |
| info.dwMask = OS.TBIF_STYLE | OS.TBIF_STATE; |
| OS.SendMessage (hwnd, OS.TB_GETBUTTONINFO, id, info); |
| if (control == null) { |
| if ((info.fsStyle & OS.BTNS_SEP) == 0) { |
| changed = true; |
| info.fsStyle &= ~(OS.BTNS_BUTTON | OS.BTNS_SHOWTEXT); |
| info.fsStyle |= OS.BTNS_SEP; |
| if ((state & DISABLED) != 0) { |
| info.fsState &= ~OS.TBSTATE_ENABLED; |
| } else { |
| info.fsState |= OS.TBSTATE_ENABLED; |
| } |
| } |
| } else { |
| if ((info.fsStyle & OS.BTNS_SEP) != 0) { |
| changed = true; |
| info.fsStyle &= ~OS.BTNS_SEP; |
| info.fsStyle |= OS.BTNS_BUTTON | OS.BTNS_SHOWTEXT; |
| info.fsState &= ~OS.TBSTATE_ENABLED; |
| info.dwMask |= OS.TBIF_IMAGE; |
| info.iImage = OS.I_IMAGENONE; |
| } |
| } |
| if (changed) { |
| OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info); |
| /* |
| * Bug in Windows. When TB_SETBUTTONINFO changes the |
| * style of a tool item from BTNS_SEP to BTNS_BUTTON |
| * and the tool bar is wrapped, the tool bar does not |
| * redraw properly. Windows uses separator items as |
| * wrap points and sometimes draws etching above or |
| * below and entire row. The fix is to redraw the |
| * tool bar. |
| */ |
| if (OS.SendMessage (hwnd, OS.TB_GETROWS, 0, 0) > 1) { |
| OS.InvalidateRect (hwnd, null, true); |
| } |
| } |
| } |
| resizeControl (); |
| } |
| |
| /** |
| * Enables the receiver if the argument is <code>true</code>, |
| * and disables it otherwise. |
| * <p> |
| * A disabled control is typically |
| * not selectable from the user interface and draws with an |
| * inactive or "grayed" look. |
| * </p> |
| * |
| * @param enabled the new enabled 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 setEnabled (boolean enabled) { |
| checkWidget(); |
| long /*int*/ hwnd = parent.handle; |
| int fsState = (int)/*64*/OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0); |
| /* |
| * Feature in Windows. When TB_SETSTATE is used to set the |
| * state of a tool item, the item redraws even when the state |
| * has not changed. The fix is to detect this case and avoid |
| * setting the state. |
| */ |
| if (((fsState & OS.TBSTATE_ENABLED) != 0) == enabled) return; |
| if (enabled) { |
| fsState |= OS.TBSTATE_ENABLED; |
| state &= ~DISABLED; |
| } else { |
| fsState &= ~OS.TBSTATE_ENABLED; |
| state |= DISABLED; |
| } |
| OS.SendMessage (hwnd, OS.TB_SETSTATE, id, fsState); |
| if ((style & SWT.SEPARATOR) == 0) { |
| if (image != null) updateImages (enabled && parent.getEnabled ()); |
| } |
| } |
| |
| /** |
| * Sets the receiver's disabled image to the argument, which may be |
| * null indicating that no disabled image should be displayed. |
| * <p> |
| * The disabled image is displayed when the receiver is disabled. |
| * </p> |
| * |
| * @param image the disabled image to display on the receiver (may be null) |
| * |
| * @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> |
| */ |
| public void setDisabledImage (Image image) { |
| checkWidget(); |
| if ((style & SWT.SEPARATOR) != 0) return; |
| if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); |
| disabledImage = image; |
| updateImages (getEnabled () && parent.getEnabled ()); |
| } |
| |
| /** |
| * Sets the receiver's hot image to the argument, which may be |
| * null indicating that no hot image should be displayed. |
| * <p> |
| * The hot image is displayed when the mouse enters the receiver. |
| * </p> |
| * |
| * @param image the hot image to display on the receiver (may be null) |
| * |
| * @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> |
| */ |
| public void setHotImage (Image image) { |
| checkWidget(); |
| if ((style & SWT.SEPARATOR) != 0) return; |
| if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); |
| hotImage = image; |
| updateImages (getEnabled () && parent.getEnabled ()); |
| } |
| |
| @Override |
| public void setImage (Image image) { |
| checkWidget(); |
| if ((style & SWT.SEPARATOR) != 0) return; |
| if (image != null && image.isDisposed()) error(SWT.ERROR_INVALID_ARGUMENT); |
| super.setImage (image); |
| updateImages (getEnabled () && parent.getEnabled ()); |
| } |
| |
| boolean setRadioSelection (boolean value) { |
| if ((style & SWT.RADIO) == 0) return false; |
| if (getSelection () != value) { |
| setSelection (value); |
| sendSelectionEvent (SWT.Selection); |
| } |
| return true; |
| } |
| |
| /** |
| * Sets the selection state of the receiver. |
| * <p> |
| * When the receiver is of type <code>CHECK</code> or <code>RADIO</code>, |
| * it is selected when it is checked (which some platforms draw as a |
| * pushed in button). |
| * </p> |
| * |
| * @param selected the new selection 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 setSelection (boolean selected) { |
| checkWidget(); |
| if ((style & (SWT.CHECK | SWT.RADIO)) == 0) return; |
| long /*int*/ hwnd = parent.handle; |
| int fsState = (int)/*64*/OS.SendMessage (hwnd, OS.TB_GETSTATE, id, 0); |
| /* |
| * Feature in Windows. When TB_SETSTATE is used to set the |
| * state of a tool item, the item redraws even when the state |
| * has not changed. The fix is to detect this case and avoid |
| * setting the state. |
| */ |
| if (((fsState & OS.TBSTATE_CHECKED) != 0) == selected) return; |
| if (selected) { |
| fsState |= OS.TBSTATE_CHECKED; |
| } else { |
| fsState &= ~OS.TBSTATE_CHECKED; |
| } |
| OS.SendMessage (hwnd, OS.TB_SETSTATE, id, fsState); |
| |
| /* |
| * Bug in Windows. When a tool item with the style |
| * BTNS_CHECK or BTNS_CHECKGROUP is selected and then |
| * disabled, the item does not draw using the disabled |
| * image. The fix is to use the disabled image in all |
| * image lists for the item. |
| * |
| * NOTE: This means that the image list must be updated |
| * when the selection changes in a disabled tool item. |
| */ |
| if ((style & (SWT.CHECK | SWT.RADIO)) != 0) { |
| if (!getEnabled () || !parent.getEnabled ()) { |
| updateImages (false); |
| } |
| } |
| } |
| |
| @Override |
| boolean setTabItemFocus () { |
| if (parent.setTabItemFocus ()) { |
| long /*int*/ hwnd = parent.handle; |
| int index = (int)/*64*/OS.SendMessage (hwnd, OS.TB_COMMANDTOINDEX, id, 0); |
| OS.SendMessage (hwnd, OS.TB_SETHOTITEM, index, 0); |
| return true; |
| } |
| return false; |
| } |
| |
| void _setText (String string) { |
| long /*int*/ hwnd = parent.handle; |
| TBBUTTONINFO info = new TBBUTTONINFO (); |
| info.cbSize = TBBUTTONINFO.sizeof; |
| info.dwMask = OS.TBIF_TEXT | OS.TBIF_STYLE; |
| info.fsStyle = (byte) (widgetStyle () | OS.BTNS_AUTOSIZE); |
| long /*int*/ hHeap = OS.GetProcessHeap (), pszText = 0; |
| if (string.length () != 0) { |
| info.fsStyle |= OS.BTNS_SHOWTEXT; |
| TCHAR buffer; |
| if (OS.IsUnicode && (style & SWT.FLIP_TEXT_DIRECTION) != 0) { |
| int bits = OS.GetWindowLong (hwnd, OS.GWL_EXSTYLE); |
| if ((bits & OS.WS_EX_LAYOUTRTL) != 0) { |
| buffer = new TCHAR (parent.getCodePage (), LRE + string, true); |
| } else { |
| buffer = new TCHAR (parent.getCodePage (), RLE + string, true); |
| } |
| } else { |
| buffer = new TCHAR(parent.getCodePage (), string, true); |
| } |
| int byteCount = buffer.length () * TCHAR.sizeof; |
| pszText = OS.HeapAlloc (hHeap, OS.HEAP_ZERO_MEMORY, byteCount); |
| OS.MoveMemory (pszText, buffer, byteCount); |
| info.pszText = pszText; |
| } |
| OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info); |
| if (pszText != 0) OS.HeapFree (hHeap, 0, pszText); |
| } |
| |
| /** |
| * Sets the receiver's text. The string may include |
| * the mnemonic character. |
| * </p> |
| * <p> |
| * Mnemonics are indicated by an '&' that causes the next |
| * character to be the mnemonic. When the user presses a |
| * key sequence that matches the mnemonic, a selection |
| * event occurs. On most platforms, the mnemonic appears |
| * underlined but may be emphasised in a platform specific |
| * manner. The mnemonic indicator character '&' can be |
| * escaped by doubling it in the string, causing a single |
| * '&' to be displayed. |
| * </p><p> |
| * Note: If control characters like '\n', '\t' etc. are used |
| * in the string, then the behavior is platform dependent. |
| * </p> |
| * |
| * @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> |
| */ |
| @Override |
| public void setText (String string) { |
| checkWidget(); |
| if (string == null) error (SWT.ERROR_NULL_ARGUMENT); |
| if ((style & SWT.SEPARATOR) != 0) return; |
| if (string.equals (text)) return; |
| super.setText (string); |
| if ((state & HAS_AUTO_DIRECTION) == 0 || !updateTextDirection (AUTO_TEXT_DIRECTION)) { |
| _setText (string); |
| } |
| /* |
| * Bug in Windows. For some reason, when the font is set |
| * before any tool item has text, the tool items resize to |
| * a very small size. Also, a tool item will only show text |
| * when text has already been set on one item and then a new |
| * item is created. The fix is to use WM_SETFONT to force |
| * the tool bar to redraw and layout. |
| */ |
| parent.setDropDownItems (false); |
| long /*int*/ hwnd = parent.handle; |
| long /*int*/ hFont = OS.SendMessage (hwnd, OS.WM_GETFONT, 0, 0); |
| OS.SendMessage (hwnd, OS.WM_SETFONT, hFont, 0); |
| parent.setDropDownItems (true); |
| parent.layoutItems (); |
| } |
| |
| @Override |
| boolean updateTextDirection(int textDirection) { |
| /* AUTO is handled by super */ |
| if (super.updateTextDirection(textDirection) && text.length() != 0) { |
| _setText (text); |
| return true; |
| } |
| return false; |
| } |
| |
| /** |
| * Sets the receiver's tool tip text to the argument, which |
| * may be null indicating that the default tool tip for the |
| * control will be shown. For a control that has a default |
| * tool tip, such as the Tree control on Windows, setting |
| * the tool tip text to an empty string replaces the default, |
| * causing no tool tip text to be shown. |
| * <p> |
| * The mnemonic indicator (character '&') is not displayed in a tool tip. |
| * To display a single '&' in the tool tip, the character '&' can be |
| * escaped by doubling it in the string. |
| * </p> |
| * |
| * @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> |
| */ |
| public void setToolTipText (String string) { |
| checkWidget(); |
| toolTipText = string; |
| } |
| |
| /** |
| * Sets the width of the receiver, for <code>SEPARATOR</code> ToolItems. |
| * |
| * @param width the new width. If the new value is <code>SWT.DEFAULT</code>, |
| * the width is a fixed-width area whose amount is determined by the platform. |
| * If the new value is 0 a vertical or horizontal line will be drawn, depending |
| * on the setting of the corresponding style bit (<code>SWT.VERTICAL</code> or |
| * <code>SWT.HORIZONTAL</code>). If the new value is <code>SWT.SEPARATOR_FILL</code> |
| * a variable-width space is inserted that acts as a spring between the two adjoining |
| * items which will push them out to the extent of the containing ToolBar. |
| * |
| * |
| * @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 ((style & SWT.SEPARATOR) == 0) return; |
| if (width < 0) return; |
| long /*int*/ hwnd = parent.handle; |
| TBBUTTONINFO info = new TBBUTTONINFO (); |
| info.cbSize = TBBUTTONINFO.sizeof; |
| info.dwMask = OS.TBIF_SIZE; |
| info.cx = cx = (short) width; |
| OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info); |
| parent.layoutItems (); |
| } |
| |
| void updateImages (boolean enabled) { |
| if ((style & SWT.SEPARATOR) != 0) return; |
| long /*int*/ hwnd = parent.handle; |
| TBBUTTONINFO info = new TBBUTTONINFO (); |
| info.cbSize = TBBUTTONINFO.sizeof; |
| info.dwMask = OS.TBIF_IMAGE; |
| OS.SendMessage (hwnd, OS.TB_GETBUTTONINFO, id, info); |
| if (info.iImage == OS.I_IMAGENONE && image == null) return; |
| ImageList imageList = parent.getImageList (); |
| ImageList hotImageList = parent.getHotImageList (); |
| ImageList disabledImageList = parent.getDisabledImageList(); |
| if (info.iImage == OS.I_IMAGENONE) { |
| Rectangle bounds = image.getBounds (); |
| int listStyle = parent.style & SWT.RIGHT_TO_LEFT; |
| if (imageList == null) { |
| imageList = display.getImageListToolBar (listStyle, bounds.width, bounds.height); |
| } |
| if (disabledImageList == null) { |
| disabledImageList = display.getImageListToolBarDisabled (listStyle, bounds.width, bounds.height); |
| } |
| if (hotImageList == null) { |
| hotImageList = display.getImageListToolBarHot (listStyle, bounds.width, bounds.height); |
| } |
| Image disabled = disabledImage; |
| if (disabledImage == null) { |
| if (disabledImage2 != null) disabledImage2.dispose (); |
| disabledImage2 = null; |
| disabled = image; |
| if (!enabled) { |
| disabled = disabledImage2 = new Image (display, image, SWT.IMAGE_DISABLE); |
| } |
| } |
| /* |
| * Bug in Windows. When a tool item with the style |
| * BTNS_CHECK or BTNS_CHECKGROUP is selected and then |
| * disabled, the item does not draw using the disabled |
| * image. The fix is to assign the disabled image in |
| * all image lists. |
| */ |
| Image image2 = image, hot = hotImage; |
| if ((style & (SWT.CHECK | SWT.RADIO)) != 0) { |
| if (!enabled) image2 = hot = disabled; |
| } |
| info.iImage = imageList.add (image2); |
| disabledImageList.add (disabled); |
| hotImageList.add (hot != null ? hot : image2); |
| parent.setImageList (imageList); |
| parent.setDisabledImageList (disabledImageList); |
| parent.setHotImageList (hotImageList); |
| } else { |
| Image disabled = null; |
| if (disabledImageList != null) { |
| if (image != null) { |
| if (disabledImage2 != null) disabledImage2.dispose (); |
| disabledImage2 = null; |
| disabled = disabledImage; |
| if (disabledImage == null) { |
| disabled = image; |
| if (!enabled) { |
| disabled = disabledImage2 = new Image (display, image, SWT.IMAGE_DISABLE); |
| } |
| } |
| } |
| disabledImageList.put (info.iImage, disabled); |
| } |
| /* |
| * Bug in Windows. When a tool item with the style |
| * BTNS_CHECK or BTNS_CHECKGROUP is selected and then |
| * disabled, the item does not draw using the disabled |
| * image. The fix is to use the disabled image in all |
| * image lists. |
| */ |
| Image image2 = image, hot = hotImage; |
| if ((style & (SWT.CHECK | SWT.RADIO)) != 0) { |
| if (!enabled) image2 = hot = disabled; |
| } |
| if (imageList != null) imageList.put (info.iImage, image2); |
| if (hotImageList != null) { |
| hotImageList.put (info.iImage, hot != null ? hot : image2); |
| } |
| if (image == null) info.iImage = OS.I_IMAGENONE; |
| } |
| |
| /* |
| * Bug in Windows. If the width of an item has already been |
| * calculated, the tool bar control will not recalculate it to |
| * include the space for the image. The fix is to set the width |
| * to zero, forcing the control recalculate the width for the item. |
| */ |
| info.dwMask |= OS.TBIF_SIZE; |
| info.cx = 0; |
| OS.SendMessage (hwnd, OS.TB_SETBUTTONINFO, id, info); |
| long /*int*/ hFont = OS.SendMessage (hwnd, OS.WM_GETFONT, 0, 0); |
| OS.SendMessage (hwnd, OS.WM_SETFONT, hFont, 0); |
| parent.layoutItems (); |
| } |
| |
| int widgetStyle () { |
| if ((style & SWT.DROP_DOWN) != 0) return OS.BTNS_DROPDOWN; |
| if ((style & SWT.PUSH) != 0) return OS.BTNS_BUTTON; |
| if ((style & SWT.CHECK) != 0) return OS.BTNS_CHECK; |
| /* |
| * This code is intentionally commented. In order to |
| * consistently support radio tool items across platforms, |
| * the platform radio behavior is not used. |
| */ |
| // if ((style & SWT.RADIO) != 0) return OS.BTNS_CHECKGROUP; |
| if ((style & SWT.RADIO) != 0) return OS.BTNS_CHECK; |
| if ((style & SWT.SEPARATOR) != 0) return OS.BTNS_SEP; |
| return OS.BTNS_BUTTON; |
| } |
| |
| LRESULT wmCommandChild (long /*int*/ wParam, long /*int*/ lParam) { |
| if ((style & SWT.RADIO) != 0) { |
| if ((parent.getStyle () & SWT.NO_RADIO_GROUP) == 0) { |
| selectRadio (); |
| } |
| } |
| sendSelectionEvent (SWT.Selection); |
| return null; |
| } |
| |
| } |