本文整理了Java中org.eclipse.swt.widgets.MenuItem.isEnabled()方法的一些代码示例，展示了MenuItem.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。MenuItem.isEnabled()方法的具体详情如下：
包路径：org.eclipse.swt.widgets.MenuItem
类名称：MenuItem
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 item 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。禁用的菜单项通常无法从用户界面中选择，并以非活动或“灰色”外观绘制。
代码示例来源：origin: org.eclipse.rap/org.eclipse.rap.rwt
@Override
public void handleEvent( Event event ) {
if( isRelevantEvent( event ) && menuItem.isEnabled() ) {
menuItem.handleAcceleratorActivation();
event.type = SWT.NONE;
}
}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.eclipse.platform/org.eclipse.swt.gtk.linux.s390x
@Override
long /*int*/ gtk_activate (long /*int*/ widget) {
if ((style & SWT.CASCADE) != 0 && menu != null) return 0;
/*
* Bug in GTK. When an ancestor menu is disabled and
* the user types an accelerator key, GTK delivers the
* the activate signal even though the menu item cannot
* be invoked using the mouse. The fix is to ignore
* activate signals when an ancestor menu is disabled.
*/
if (!isEnabled ()) return 0;
if ((style & SWT.RADIO) != 0) {
if ((parent.getStyle () & SWT.NO_RADIO_GROUP) == 0) {
selectRadio ();
}
}
sendSelectionEvent (SWT.Selection);
return 0;
}代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.linux.ppc
@Override
int /*long*/ gtk_activate (int /*long*/ widget) {
if ((style & SWT.CASCADE) != 0 && menu != null) return 0;
/*
* Bug in GTK. When an ancestor menu is disabled and
* the user types an accelerator key, GTK delivers the
* the activate signal even though the menu item cannot
* be invoked using the mouse. The fix is to ignore
* activate signals when an ancestor menu is disabled.
*/
if (!isEnabled ()) return 0;
if ((style & SWT.RADIO) != 0) {
if ((parent.getStyle () & SWT.NO_RADIO_GROUP) == 0) {
selectRadio ();
}
}
sendSelectionEvent (SWT.Selection);
return 0;
}代码示例来源：origin: org.eclipse.platform/org.eclipse.swt.gtk.aix.ppc
@Override
int /*long*/ gtk_activate (int /*long*/ widget) {
if ((style & SWT.CASCADE) != 0 && menu != null) return 0;
/*
* Bug in GTK. When an ancestor menu is disabled and
* the user types an accelerator key, GTK delivers the
* the activate signal even though the menu item cannot
* be invoked using the mouse. The fix is to ignore
* activate signals when an ancestor menu is disabled.
*/
if (!isEnabled ()) return 0;
if ((style & SWT.RADIO) != 0) {
if ((parent.getStyle () & SWT.NO_RADIO_GROUP) == 0) {
selectRadio ();
}
}
sendSelectionEvent (SWT.Selection);
return 0;
}代码示例来源：origin: org.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86
LRESULT WM_COMMAND (int /*long*/ wParam, int /*long*/ lParam) {
/*
* When the WM_COMMAND message is sent from a
* menu, the HWND parameter in LPARAM is zero.
*/
if (lParam == 0) {
Decorations shell = menuShell ();
if (shell.isEnabled ()) {
int id = OS.LOWORD (wParam);
MenuItem item = display.getMenuItem (id);
if (item != null && item.isEnabled ()) {
return item.wmCommandChild (wParam, lParam);
}
}
return null;
}
Control control = display.getControl (lParam);
if (control == null) return null;
return control.wmCommandChild (wParam, lParam);
}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.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.eclipse.scout.sdk.deps/org.eclipse.swt.win32.win32.x86
if (lphi.iContextType == OS.HELPINFO_MENUITEM) {
MenuItem item = display.getMenuItem (lphi.iCtrlId);
if (item != null && item.isEnabled ()) {
Widget widget = null;
if (item.hooks (SWT.Help)) {内容来源于网络，如有侵权，请联系作者删除！