oleframe.java

源码为Eclipse开源开发平台桌面开发工具SWT的源代码,

 *
 */
public MenuItem[] getWindowMenus(){
	return windowMenuItems;
}
private int InsertMenus(int hmenuShared, int lpMenuWidths) {
	// locate menu bar
	Menu menubar = getShell().getMenuBar();
	if (menubar == null || menubar.isDisposed()) {
		COM.MoveMemory(lpMenuWidths, new int[] {0}, 4);
		return COM.S_OK;
	}
	int hMenu = menubar.handle;

	// Create a holder for menu information.  This will be passed down to
	// the OS and the OS will fill in the requested information for each menu.
	MENUITEMINFO lpmii = new MENUITEMINFO();
	int hHeap = OS.GetProcessHeap();
	int cch = 128;
	int byteCount = cch * TCHAR.sizeof;
	int pszText = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
	lpmii.cbSize = MENUITEMINFO.sizeof;
	lpmii.fMask = OS.MIIM_STATE | OS.MIIM_ID | OS.MIIM_TYPE | OS.MIIM_SUBMENU | OS.MIIM_DATA;
	lpmii.dwTypeData = pszText;
	lpmii.cch = cch;

	// Loop over all "File-like" menus in the menubar and get information about the
	// item from the OS.
	int fileMenuCount = 0;
	int newindex = 0;
	if (this.fileMenuItems != null) {
		for (int i = 0; i < this.fileMenuItems.length; i++) {
			MenuItem item = this.fileMenuItems[i];
			if (item != null) {
				int index = item.getParent().indexOf(item);
				lpmii.cch = cch;  // lpmii.cch gets updated by GetMenuItemInfo to indicate the 
				                  // exact number of characters in name.  Reset it to our max size 
				                  // before each call.
				if (OS.GetMenuItemInfo(hMenu, index, true, lpmii)) {
					if (OS.InsertMenuItem(hmenuShared, newindex, true, lpmii)) {
						// keep track of the number of items
						fileMenuCount++;
						newindex++;
					}
				}
			}
		}
	}

	// copy the menu item count information to the pointer
	COM.MoveMemory(lpMenuWidths, new int[] {fileMenuCount}, 4);

	// Loop over all "Container-like" menus in the menubar and get information about the
	// item from the OS.
	int containerMenuCount = 0;
	if (this.containerMenuItems != null) {
		for (int i = 0; i < this.containerMenuItems.length; i++) {
			MenuItem item = this.containerMenuItems[i];
			if (item != null) {
				int index = item.getParent().indexOf(item);
				lpmii.cch = cch; // lpmii.cch gets updated by GetMenuItemInfo to indicate the 
				                           // exact nuber of characters in name.  Reset it to a large number 
				                           // before each call.
				if (OS.GetMenuItemInfo(hMenu, index, true, lpmii)) {
					if (OS.InsertMenuItem(hmenuShared, newindex, true, lpmii)) {
						// keep track of the number of items
						containerMenuCount++;
						newindex++;
					}
				}
			}
		}
	}
	
	// copy the menu item count information to the pointer
	COM.MoveMemory(lpMenuWidths + 8, new int[] {containerMenuCount}, 4);

	// Loop over all "Window-like" menus in the menubar and get information about the
	// item from the OS.
	int windowMenuCount = 0;
	if (this.windowMenuItems != null) {
		for (int i = 0; i < this.windowMenuItems.length; i++) {
			MenuItem item = this.windowMenuItems[i];
			if (item != null) {
				int index = item.getParent().indexOf(item);
				lpmii.cch = cch; // lpmii.cch gets updated by GetMenuItemInfo to indicate the 
				                           // exact nuber of characters in name.  Reset it to a large number 
				                           // before each call.
				if (OS.GetMenuItemInfo(hMenu, index, true, lpmii)) {
					if (OS.InsertMenuItem(hmenuShared, newindex, true, lpmii)) {
						// keep track of the number of items
						windowMenuCount++;
						newindex++;
					}
				}
			}
		}
	}
	
	// copy the menu item count information to the pointer
	COM.MoveMemory(lpMenuWidths + 16, new int[] {windowMenuCount}, 4);
		
	// free resources used in querying the OS
	if (pszText != 0)
		OS.HeapFree(hHeap, 0, pszText);
	return COM.S_OK;
}
private void onDispose(Event e) {

	releaseObjectInterfaces();
	currentdoc = null;

	this.Release();
	removeListener(SWT.Dispose, listener);
	removeListener(SWT.Resize, listener);
	removeListener(SWT.Move, listener);
}
private void onResize(Event e) {
	if (objIOleInPlaceActiveObject != null) {
		RECT lpRect = new RECT();
		OS.GetClientRect(handle, lpRect);
		objIOleInPlaceActiveObject.ResizeBorder(lpRect, iOleInPlaceFrame.getAddress(), true);
	}
}
private int QueryInterface(int riid, int ppvObject) {
//	implements IUnknown, IOleInPlaceFrame, IOleContainer, IOleInPlaceUIWindow
	if (riid == 0 || ppvObject == 0)
		return COM.E_INVALIDARG;
	GUID guid = new GUID();
	COM.MoveMemory(guid, riid, GUID.sizeof);
	if (COM.IsEqualGUID(guid, COM.IIDIUnknown) || COM.IsEqualGUID(guid, COM.IIDIOleInPlaceFrame) ) {
		COM.MoveMemory(ppvObject, new int[] {iOleInPlaceFrame.getAddress()}, 4);
		AddRef();
		return COM.S_OK;
	}

	COM.MoveMemory(ppvObject, new int[] {0}, 4);
	return COM.E_NOINTERFACE;
}
/**
 * Decrement the count of references to this instance
 *
 * @return the current reference count
 */
int Release() {
	refCount--;
	if (refCount == 0){
		disposeCOMInterfaces();
		COM.CoFreeUnusedLibraries();
	}
	return refCount;
}
private void releaseObjectInterfaces() {
	if (objIOleInPlaceActiveObject != null) {
		objIOleInPlaceActiveObject.Release();
	}
	objIOleInPlaceActiveObject = null;
}
private int RemoveMenus(int hmenuShared) {

	Menu menubar = getShell().getMenuBar();
	if (menubar == null || menubar.isDisposed()) return COM.S_FALSE;

	int hMenu = menubar.handle;
	
	Vector ids = new Vector();
	if (this.fileMenuItems != null) {
		for (int i = 0; i < this.fileMenuItems.length; i++) {
			MenuItem item = this.fileMenuItems[i];
			if (item != null && !item.isDisposed()) {
				int index = item.getParent().indexOf(item);
				// get Id from original menubar
				int id = getMenuItemID(hMenu, index);
				ids.addElement(new Integer(id));
			}
		}
	}
	if (this.containerMenuItems != null) {
		for (int i = 0; i < this.containerMenuItems.length; i++) {
			MenuItem item = this.containerMenuItems[i];
			if (item != null && !item.isDisposed()) {
				int index = item.getParent().indexOf(item);
				int id = getMenuItemID(hMenu, index);
				ids.addElement(new Integer(id));
			}
		}
	}
	if (this.windowMenuItems != null) {
		for (int i = 0; i < this.windowMenuItems.length; i++) {
			MenuItem item = this.windowMenuItems[i];
			if (item != null && !item.isDisposed()) {
				int index = item.getParent().indexOf(item);
				int id = getMenuItemID(hMenu, index);
				ids.addElement(new Integer(id));
			}
		}
	}
	int index = OS.GetMenuItemCount(hmenuShared) - 1;
	for (int i = index; i >= 0; i--) {
		int id = getMenuItemID(hmenuShared, i);
		if (ids.contains(new Integer(id))){
			OS.RemoveMenu(hmenuShared, i, OS.MF_BYPOSITION);
		}
	}
	return COM.S_OK;
}
private int RequestBorderSpace(int pborderwidths) {
	return COM.S_OK;
}
int SetActiveObject(int pActiveObject, int pszObjName) {
	if (objIOleInPlaceActiveObject != null) {
		objIOleInPlaceActiveObject.Release();
		objIOleInPlaceActiveObject = null;
	}
	if (pActiveObject != 0) {
		objIOleInPlaceActiveObject = new IOleInPlaceActiveObject(pActiveObject);
		objIOleInPlaceActiveObject.AddRef();
	}

	return COM.S_OK;
}
private int SetBorderSpace(int pborderwidths) {
	// A Control/Document can :
	// Use its own toolbars, requesting border space of a specific size, or, 
	// Use no toolbars, but force the container to remove its toolbars by passing a 
	//   valid BORDERWIDTHS structure containing nothing but zeros in the pborderwidths parameter, or, 
	// Use no toolbars but allow the in-place container to leave its toolbars up by 
	//   passing NULL as the pborderwidths parameter.
	if (objIOleInPlaceActiveObject == null) return COM.S_OK;
	RECT borderwidth = new RECT();
	if (pborderwidths == 0 || currentdoc == null ) return COM.S_OK;
		
	COM.MoveMemory(borderwidth, pborderwidths, RECT.sizeof);
	currentdoc.setBorderSpace(borderwidth);

	return COM.S_OK;
}
/**
 *
 * Specify the menu items that should appear in the Container location when an OLE Document 
 * is in-place activated.
 *
 * <p>When an OLE Document is in-place active, the Document provides its own menus but the application
 * is given the opportunity to merge some of its menus into the menubar.  The application
 * is allowed to insert its menus in three locations: File (far left), Container(middle) and Window 
 * (far right just before Help).  The OLE Document retains control of the Edit, Object and Help
 * menu locations.  Note that an application can insert more than one menu into a single location.
 *
 * <p>This method must be called before in place activation of the OLE Document.  After the Document
 * is activated, the menu bar will not be modified until a subsequent activation.
 *
 * @param containerMenus an array of top level MenuItems to be inserted into the Container location of 
 *        the menubar
 */
public void setContainerMenus(MenuItem[] containerMenus){
	containerMenuItems = containerMenus;
}
OleClientSite getCurrentDocument() {
	return currentdoc;
}
void setCurrentDocument(OleClientSite doc) {
	currentdoc = doc;

	if (currentdoc != null && objIOleInPlaceActiveObject != null) {
		RECT lpRect = new RECT();
		OS.GetClientRect(handle, lpRect);
		objIOleInPlaceActiveObject.ResizeBorder(lpRect, iOleInPlaceFrame.getAddress(), true);
	}
}
/**
 *
 * Specify the menu items that should appear in the File location when an OLE Document 
 * is in-place activated.
 *
 * <p>When an OLE Document is in-place active, the Document provides its own menus but the application
 * is given the opportunity to merge some of its menus into the menubar.  The application
 * is allowed to insert its menus in three locations: File (far left), Container(middle) and Window 
 * (far right just before Help).  The OLE Document retains control of the Edit, Object and Help
 * menu locations.  Note that an application can insert more than one menu into a single location.
 *
 * <p>This method must be called before in place activation of the OLE Document.  After the Document
 * is activated, the menu bar will not be modified until a subsequent activation.
 *
 * @param fileMenus an array of top level MenuItems to be inserted into the Flie location of 
 *        the menubar
 */
public void setFileMenus(MenuItem[] fileMenus){
	fileMenuItems = fileMenus;
}
private int SetMenu(int hmenuShared, int holemenu, int hwndActiveObject) {
	int inPlaceActiveObject = 0;
	if (objIOleInPlaceActiveObject != null)
		inPlaceActiveObject = objIOleInPlaceActiveObject.getAddress();		
	
	Menu menubar = getShell().getMenuBar();
	if (menubar == null || menubar.isDisposed()){
		return COM.OleSetMenuDescriptor(0, getShell().handle, hwndActiveObject, iOleInPlaceFrame.getAddress(), inPlaceActiveObject);
	}
	
	int handle = menubar.getShell().handle;
	
	if (hmenuShared == 0 && holemenu == 0) {
		// re-instate the original menu - this occurs on deactivation
		hmenuShared = menubar.handle;
	}
	if (hmenuShared == 0) return COM.E_FAIL;
	
	OS.SetMenu(handle, hmenuShared);
	OS.DrawMenuBar(handle);
	
	return COM.OleSetMenuDescriptor(holemenu, handle, hwndActiveObject, iOleInPlaceFrame.getAddress(), inPlaceActiveObject);
}
/**
 *
 * Set the menu items that should appear in the Window location when an OLE Document 
 * is in-place activated.
 *
 * <p>When an OLE Document is in-place active, the Document provides its own menus but the application
 * is given the opportunity to merge some of its menus into the menubar.  The application
 * is allowed to insert its menus in three locations: File (far left), Container(middle) and Window 
 * (far right just before Help).  The OLE Document retains control of the Edit, Object and Help
 * menu locations.  Note that an application can insert more than one menu into a single location.
 *
 * <p>This method must be called before in place activation of the OLE Document.  After the Document
 * is activated, the menu bar will not be modified until a subsequent activation.
 *
 * @param windowMenus an array of top level MenuItems to be inserted into the Window location of 
 *        the menubar
 */
public void setWindowMenus(MenuItem[] windowMenus){
	windowMenuItems = windowMenus;
}
private boolean translateOleAccelerator(MSG msg) {
	if (objIOleInPlaceActiveObject == null) return false;
	int result = objIOleInPlaceActiveObject.TranslateAccelerator(msg);
	return (result != COM.S_FALSE && result != COM.E_NOTIMPL);
}
private int TranslateAccelerator(int 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 hwnd = shell.handle;
	int 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;
}
}