void setMenu(Menu menu, boolean dispose) {
/* Assign the new menu */
Menu oldMenu = this.menu;
if (oldMenu == menu) return;
if (oldMenu != null) oldMenu.cascade = null;
this.menu = menu;
/* Assign the new menu in the OS */
if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) {
if (OS.IsPPC) {
long /*int*/ hwndCB = parent.hwndCB;
long /*int*/ hMenu = menu == null ? 0 : menu.handle;
OS.SendMessage(hwndCB, OS.SHCMBM_SETSUBMENU, id, hMenu);
}
if (OS.IsSP) error(SWT.ERROR_CANNOT_SET_MENU);
} else {
long /*int*/ hMenu = parent.handle;
MENUITEMINFO info = new MENUITEMINFO();
info.cbSize = MENUITEMINFO.sizeof;
info.fMask = OS.MIIM_DATA;
int index = 0;
while (OS.GetMenuItemInfo(hMenu, index, true, info)) {
if (info.dwItemData == id) break;
index++;
}
if (info.dwItemData != id) return;
int cch = 128;
long /*int*/ hHeap = OS.GetProcessHeap();
int byteCount = cch * TCHAR.sizeof;
long /*int*/ pszText = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
info.fMask = OS.MIIM_STATE | OS.MIIM_ID | OS.MIIM_DATA;
/*
* Bug in Windows. When GetMenuItemInfo() is used to get the text,
* for an item that has a bitmap set using MIIM_BITMAP, the text is
* not returned. This means that when SetMenuItemInfo() is used to
* set the submenu and the current menu state, the text is lost.
* The fix is use MIIM_BITMAP and MIIM_STRING.
*/
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION(4, 10)) {
info.fMask |= OS.MIIM_BITMAP | OS.MIIM_STRING;
} else {
info.fMask |= OS.MIIM_TYPE;
}
info.dwTypeData = pszText;
info.cch = cch;
boolean success = OS.GetMenuItemInfo(hMenu, index, true, info);
if (menu != null) {
menu.cascade = this;
info.fMask |= OS.MIIM_SUBMENU;
info.hSubMenu = menu.handle;
}
if (OS.IsWinCE) {
OS.RemoveMenu(hMenu, index, OS.MF_BYPOSITION);
/*
* On WinCE, InsertMenuItem() is not available. The fix is to
* use SetMenuItemInfo() but this call does not set the menu item
* state and submenu. The fix is to use InsertMenu() to insert
* the item, SetMenuItemInfo() to set the string and EnableMenuItem()
* and CheckMenuItem() to set the state.
*/
long /*int*/ uIDNewItem = id;
int uFlags = OS.MF_BYPOSITION;
if (menu != null) {
uFlags |= OS.MF_POPUP;
uIDNewItem = menu.handle;
}
TCHAR lpNewItem = new TCHAR(0, " ", true);
success = OS.InsertMenu(hMenu, index, uFlags, uIDNewItem, lpNewItem);
if (success) {
info.fMask = OS.MIIM_DATA | OS.MIIM_TYPE;
success = OS.SetMenuItemInfo(hMenu, index, true, info);
if ((info.fState & (OS.MFS_DISABLED | OS.MFS_GRAYED)) != 0) {
OS.EnableMenuItem(hMenu, index, OS.MF_BYPOSITION | OS.MF_GRAYED);
}
if ((info.fState & OS.MFS_CHECKED) != 0) {
OS.CheckMenuItem(hMenu, index, OS.MF_BYPOSITION | OS.MF_CHECKED);
}
}
} else {
if (dispose || oldMenu == null) {
success = OS.SetMenuItemInfo(hMenu, index, true, info);
} else {
/*
* Feature in Windows. When SetMenuItemInfo () is used to
* set a submenu and the menu item already has a submenu,
* Windows destroys the previous menu. This is undocumented
* and unexpected but not necessarily wrong. The fix is to
* remove the item with RemoveMenu () which does not destroy
* the submenu and then insert the item with InsertMenuItem ().
*/
OS.RemoveMenu(hMenu, index, OS.MF_BYPOSITION);
success = OS.InsertMenuItem(hMenu, index, true, info);
}
}
if (pszText != 0) OS.HeapFree(hHeap, 0, pszText);
if (!success) {
int error = OS.GetLastError();
SWT.error(
SWT.ERROR_CANNOT_SET_MENU,
null,
" [GetLastError=0x" + Integer.toHexString(error) + "]"); // $NON-NLS-1$ $NON-NLS-2$
}
}
parent.destroyAccelerators();
}
/**
* Sets the receiver's text. The string may include the mnemonic character and accelerator text.
*
* <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>Accelerator text is indicated by the '\t' character. On platforms that support accelerator
* text, the text that follows the '\t' character is displayed to the user, typically indicating
* the key stroke that will cause the item to become selected. On most platforms, the accelerator
* text appears right aligned in the menu. Setting the accelerator text does not install the
* accelerator key sequence. The accelerator key sequence is installed using #setAccelerator.
*
* @param string the new text
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the text is null
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* <li>ERROR_THREAD_INVALID_ACCESS - if not called from the thread that created the receiver
* </ul>
*
* @see #setAccelerator
*/
public void setText(String string) {
checkWidget();
if (string == null) error(SWT.ERROR_NULL_ARGUMENT);
if ((style & SWT.SEPARATOR) != 0) return;
if (text.equals(string)) return;
super.setText(string);
long /*int*/ hHeap = OS.GetProcessHeap();
long /*int*/ pszText = 0;
boolean success = false;
if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) {
/*
* Bug in WinCE PPC. Tool items on the menubar don't resize
* correctly when the character '&' is used (even when it
* is a sequence '&&'). The fix is to remove all '&' from
* the string.
*/
if (string.indexOf('&') != -1) {
int length = string.length();
char[] text = new char[length];
string.getChars(0, length, text, 0);
int i = 0, j = 0;
for (i = 0; i < length; i++) {
if (text[i] != '&') text[j++] = text[i];
}
if (j < i) string = new String(text, 0, j);
}
/* Use the character encoding for the default locale */
TCHAR buffer = new TCHAR(0, string, true);
int byteCount = buffer.length() * TCHAR.sizeof;
pszText = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
OS.MoveMemory(pszText, buffer, byteCount);
long /*int*/ hwndCB = parent.hwndCB;
TBBUTTONINFO info2 = new TBBUTTONINFO();
info2.cbSize = TBBUTTONINFO.sizeof;
info2.dwMask = OS.TBIF_TEXT;
info2.pszText = pszText;
success = OS.SendMessage(hwndCB, OS.TB_SETBUTTONINFO, id, info2) != 0;
} else {
MENUITEMINFO info = new MENUITEMINFO();
info.cbSize = MENUITEMINFO.sizeof;
long /*int*/ hMenu = parent.handle;
/* Use the character encoding for the default locale */
TCHAR buffer = new TCHAR(0, string, true);
int byteCount = buffer.length() * TCHAR.sizeof;
pszText = OS.HeapAlloc(hHeap, OS.HEAP_ZERO_MEMORY, byteCount);
OS.MoveMemory(pszText, buffer, byteCount);
/*
* Bug in Windows 2000. For some reason, when MIIM_TYPE is set
* on a menu item that also has MIIM_BITMAP, the MIIM_TYPE clears
* the MIIM_BITMAP style. The fix is to use MIIM_STRING.
*/
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION(4, 10)) {
info.fMask = OS.MIIM_STRING;
} else {
info.fMask = OS.MIIM_TYPE;
info.fType = widgetStyle();
}
info.dwTypeData = pszText;
success = OS.SetMenuItemInfo(hMenu, id, false, info);
}
if (pszText != 0) OS.HeapFree(hHeap, 0, pszText);
if (!success) {
int error = OS.GetLastError();
SWT.error(
SWT.ERROR_CANNOT_SET_TEXT,
null,
" [GetLastError=0x" + Integer.toHexString(error) + "]"); // $NON-NLS-1$ $NON-NLS-2$
}
parent.redraw();
}
