org.eclipse.swt.widgets.Menu.isEnabled()方法的使用及代码示例

x33g5p2x  于2022-01-24 转载在 其他  
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本文整理了Java中org.eclipse.swt.widgets.Menu.isEnabled()方法的一些代码示例，展示了Menu.isEnabled()的具体用法。这些代码示例主要来源于Github/Stackoverflow/Maven等平台，是从一些精选项目中提取出来的代码，具有较强的参考意义，能在一定程度帮忙到你。Menu.isEnabled()方法的具体详情如下：
包路径：org.eclipse.swt.widgets.Menu
类名称：Menu
方法名：isEnabled

[英]Returns true if the receiver is enabled and all of the receiver's ancestors are enabled, and false otherwise. A disabled menu is typically not selectable from the user interface and draws with an inactive or "grayed" look.
[中]如果接收器已启用且接收器的所有祖先均已启用，则返回true，否则返回false。禁用的菜单通常无法从用户界面中选择，并以非活动或“灰色”外观绘制。

代码示例

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.ppc

/**
 * 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 menu item 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 () {
  return getEnabled () && parent.isEnabled ();
}

代码示例来源：origin: org.eclipse.rap/org.eclipse.rap.rwt

/**
 * 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 menu item 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() {
 return getEnabled() && parent.isEnabled();
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

/**
 * 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 menu item 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 () {
  return getEnabled () && parent.isEnabled ();
}

代码示例来源：origin: org.eclipse.swt.cocoa.macosx/x86_64

/**
 * 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 menu item 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 () {
  return getEnabled () && parent.isEnabled ();
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.aix.ppc

/**
 * 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 menu item 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 () {
  return getEnabled () && parent.isEnabled ();
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.s390x

/**
 * 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 menu item 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 () {
  return getEnabled () && parent.isEnabled ();
}

代码示例来源：origin: org.codehaus.openxma/xmartserver

/**
 * Detach the MenuItem from its visual representation.
 * The change must be propagated to the GUI.
 * @param item to remove
 */
public void detachMenu(IMenuItem item) {
  if(menuW==null) return;
  MenuItem itemW = (MenuItem) item.getAttached();
  if (itemW != null) {
    if(menuW.isEnabled()) {
      ((at.spardat.xma.appshell.MenuItem)item).localEnabled=itemW.isEnabled();
    }
    itemW.dispose();
  }
}

代码示例来源：origin: org.codehaus.openxma/xmartclient

/**
 * Detach the MenuItem from its visual representation.
 * The change must be propagated to the GUI.
 * @param item to remove
 */
public void detachMenu(IMenuItem item) {
  if(menuW==null) return;
  MenuItem itemW = (MenuItem) item.getAttached();
  if (itemW != null) {
    if(menuW.isEnabled()) {
      ((at.spardat.xma.appshell.MenuItem)item).localEnabled=itemW.isEnabled();
    }
    itemW.dispose();
  }
}

代码示例来源：origin: org.codehaus.openxma/xmartserver

/**
 * Enables the given menu item if the argument  enabled is <code>true</code>,
 * and disables it otherwise. A disabled menu item is
 * not selectable from the user interface and
 * draws with an inactive or "grayed" look.
 * Disabling a menu item makes all its children not selectable, too.
 * @since 2.2.0
 */
protected void setMenuItemEnabled(IMenuItem item,boolean enabled) {
  ((at.spardat.xma.appshell.MenuItem)item).localEnabled=enabled;
  MenuItem itemW = (MenuItem) item.getAttached();
  if(itemW!=null) {
    if(menuW.isEnabled()||item.getParentAttached()!=null) {
      itemW.setEnabled(enabled);
    }
  }
}

代码示例来源：origin: org.codehaus.openxma/xmartclient

/**
 * Enables the given menu item if the argument  enabled is <code>true</code>,
 * and disables it otherwise. A disabled menu item is
 * not selectable from the user interface and
 * draws with an inactive or "grayed" look.
 * Disabling a menu item makes all its children not selectable, too.
 * @since 2.2.0
 */
protected void setMenuItemEnabled(IMenuItem item,boolean enabled) {
  ((at.spardat.xma.appshell.MenuItem)item).localEnabled=enabled;
  MenuItem itemW = (MenuItem) item.getAttached();
  if(itemW!=null) {
    if(menuW.isEnabled()||item.getParentAttached()!=null) {
      itemW.setEnabled(enabled);
    }
  }
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

@Override
boolean translateAccelerator (MSG msg) {
  if (!isEnabled () || !isActive ()) return false;
  if (menuBar != null && !menuBar.isEnabled ()) return false;
  return translateMDIAccelerator (msg) || translateMenuAccelerator (msg);
}

代码示例来源：origin: org.codehaus.openxma/xmartclient

/**
 * Returns <code>true</code> if the given menu item is enabled and <code>false</code>
 * otherwise. A disabled menu item is not selectable from the user interface
 * and draws with an inactive or "grayed" look. A menu item is disabled, if
 * it is either directly disabled or any of its parents is disabled.
 * @since 2.2.0
 */
protected boolean isMenuItemEnabled(IMenuItem item) {
  if(!menuW.isEnabled()) return false;
  MenuItem itemW = (MenuItem) item.getAttached();
  if(itemW!=null&&menuW.isEnabled()) {
    ((at.spardat.xma.appshell.MenuItem)item).localEnabled=itemW.isEnabled();
  }
  if(item.isLocalEnabled()&&item.getParent()!=null) {
    return isMenuItemEnabled(item.getParent());
  }
  return item.isLocalEnabled();
}

代码示例来源：origin: org.codehaus.openxma/xmartserver

/**
 * Returns <code>true</code> if the given menu item is enabled and <code>false</code>
 * otherwise. A disabled menu item is not selectable from the user interface
 * and draws with an inactive or "grayed" look. A menu item is disabled, if
 * it is either directly disabled or any of its parents is disabled.
 * @since 2.2.0
 */
protected boolean isMenuItemEnabled(IMenuItem item) {
  if(!menuW.isEnabled()) return false;
  MenuItem itemW = (MenuItem) item.getAttached();
  if(itemW!=null&&menuW.isEnabled()) {
    ((at.spardat.xma.appshell.MenuItem)item).localEnabled=itemW.isEnabled();
  }
  if(item.isLocalEnabled()&&item.getParent()!=null) {
    return isMenuItemEnabled(item.getParent());
  }
  return item.isLocalEnabled();
}

代码示例来源：origin: org.eclipse.rap/org.eclipse.rap.rwt

/**
 * 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 menu 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();
 Menu parentMenu = getParentMenu();
 if( parentMenu == null ) {
  return getEnabled();
 }
 return getEnabled() && parentMenu.isEnabled();
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

@Override
boolean translateAccelerator (MSG msg) {
  if (!isEnabled () || !isActive ()) return false;
  if (menuBar != null && !menuBar.isEnabled ()) return false;
  if (translateMDIAccelerator (msg) || translateMenuAccelerator (msg)) return true;
  Decorations decorations = parent.menuShell ();
  return decorations.translateAccelerator (msg);
}

代码示例来源：origin: org.codehaus.openxma/xmartserver

/**
 * Completely enable/disable the menu.
 * @param enabled true: enable, false: disable.
 */
protected void setMenuEnabled(boolean enabled) {
  if(menuW==null) return;
  boolean wasEnabled=menuW.isEnabled();
  menuW.setEnabled(enabled);
  MenuItem[] items = menuW.getItems();
  //disable the items of the shell bar menu
  for (int i = 0; i < items.length; i++) {
    MenuItem item = items[i];
    at.spardat.xma.appshell.MenuItem xmaItem = (at.spardat.xma.appshell.MenuItem) item.getData();
    if(wasEnabled) { xmaItem.localEnabled=item.getEnabled(); }
    item.setEnabled(enabled&&xmaItem.localEnabled);
  }
}

代码示例来源：origin: org.codehaus.openxma/xmartclient

/**
 * Completely enable/disable the menu.
 * @param enabled true: enable, false: disable.
 */
protected void setMenuEnabled(boolean enabled) {
  if(menuW==null) return;
  boolean wasEnabled=menuW.isEnabled();
  menuW.setEnabled(enabled);
  MenuItem[] items = menuW.getItems();
  //disable the items of the shell bar menu
  for (int i = 0; i < items.length; i++) {
    MenuItem item = items[i];
    at.spardat.xma.appshell.MenuItem xmaItem = (at.spardat.xma.appshell.MenuItem) item.getData();
    if(wasEnabled) { xmaItem.localEnabled=item.getEnabled(); }
    item.setEnabled(enabled&&xmaItem.localEnabled);
  }
}

代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.s390x

/**
 * 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 menu 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();
  Menu parentMenu = getParentMenu ();
  if (parentMenu == null) {
    return getEnabled () && parent.isEnabled ();
  }
  return getEnabled () && parentMenu.isEnabled ();
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

/**
 * 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 menu 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 ();
  Menu parentMenu = getParentMenu ();
  if (parentMenu == null) {
    return getEnabled () && parent.isEnabled ();
  }
  return getEnabled () && parentMenu.isEnabled ();
}

代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86

private int TranslateAccelerator(int /*long*/ lpmsg, int wID){
  Menu menubar = getShell().getMenuBar();
  if (menubar == null || menubar.isDisposed() || !menubar.isEnabled()) return COM.S_FALSE;
  if (wID < 0) return COM.S_FALSE;

  Shell shell = menubar.getShell();
  int /*long*/ hwnd = shell.handle;
  int /*long*/ hAccel = OS.SendMessage(hwnd, OS.WM_APP+1, 0, 0);
  if (hAccel == 0) return COM.S_FALSE;

  MSG msg = new MSG();
  OS.MoveMemory(msg, lpmsg, MSG.sizeof);
  int result = OS.TranslateAccelerator(hwnd, hAccel, msg);
  return result == 0 ? COM.S_FALSE : COM.S_OK;
}
}

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