/**
* Sets the image the receiver will display to the argument.
*
* <p>Note: This operation is a hint and is not supported on platforms that do not have this
* concept (for example, Windows NT). Furthermore, some platforms (such as GTK), cannot display
* both a check box and an image at the same time. Instead, they hide the image and display the
* check box.
*
* @param image the image to display
* @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>
*/
public void setImage(Image image) {
checkWidget();
if ((style & SWT.SEPARATOR) != 0) return;
super.setImage(image);
if (OS.IsWinCE) {
if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) {
long /*int*/ hwndCB = parent.hwndCB;
TBBUTTONINFO info = new TBBUTTONINFO();
info.cbSize = TBBUTTONINFO.sizeof;
info.dwMask = OS.TBIF_IMAGE;
info.iImage = parent.imageIndex(image);
OS.SendMessage(hwndCB, OS.TB_SETBUTTONINFO, id, info);
}
return;
}
if (OS.WIN32_VERSION < OS.VERSION(4, 10)) return;
MENUITEMINFO info = new MENUITEMINFO();
info.cbSize = MENUITEMINFO.sizeof;
info.fMask = OS.MIIM_BITMAP;
if (parent.foreground != -1) {
info.hbmpItem = OS.HBMMENU_CALLBACK;
} else {
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION(6, 0) && OS.IsAppThemed()) {
if (hBitmap != 0) OS.DeleteObject(hBitmap);
info.hbmpItem = hBitmap = image != null ? Display.create32bitDIB(image) : 0;
} else {
info.hbmpItem = image != null ? OS.HBMMENU_CALLBACK : 0;
}
}
long /*int*/ hMenu = parent.handle;
OS.SetMenuItemInfo(hMenu, id, false, info);
parent.redraw();
}
/**
* 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.
*
* @param selected the new selection state
* @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>
*/
public void setSelection(boolean selected) {
checkWidget();
if ((style & (SWT.CHECK | SWT.RADIO)) == 0) return;
if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) return;
long /*int*/ hMenu = parent.handle;
if (OS.IsWinCE) {
int index = parent.indexOf(this);
if (index == -1) return;
int uCheck = OS.MF_BYPOSITION | (selected ? OS.MF_CHECKED : OS.MF_UNCHECKED);
OS.CheckMenuItem(hMenu, index, uCheck);
} else {
MENUITEMINFO info = new MENUITEMINFO();
info.cbSize = MENUITEMINFO.sizeof;
info.fMask = OS.MIIM_STATE;
boolean success = OS.GetMenuItemInfo(hMenu, id, false, info);
if (!success) error(SWT.ERROR_CANNOT_SET_SELECTION);
info.fState &= ~OS.MFS_CHECKED;
if (selected) info.fState |= OS.MFS_CHECKED;
success = OS.SetMenuItemInfo(hMenu, id, false, info);
if (!success) {
/*
* Bug in Windows. For some reason SetMenuItemInfo(),
* returns a fail code when setting the enabled or
* selected state of a default item, but sets the
* state anyway. The fix is to ignore the error.
*
* NOTE: This only happens on Vista.
*/
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION(6, 0)) {
success = id == OS.GetMenuDefaultItem(hMenu, OS.MF_BYCOMMAND, OS.GMDI_USEDISABLED);
}
if (!success) {
int error = OS.GetLastError();
SWT.error(
SWT.ERROR_CANNOT_SET_SELECTION,
null,
" [GetLastError=0x" + Integer.toHexString(error) + "]"); // $NON-NLS-1$ $NON-NLS-2$
}
}
}
parent.redraw();
}
/**
* Enables the receiver if the argument is <code>true</code>, and disables it otherwise. A
* disabled menu item is typically not selectable from the user interface and draws with an
* inactive or "grayed" look.
*
* @param enabled the new enabled state
* @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>
*/
public void setEnabled(boolean enabled) {
checkWidget();
if ((OS.IsPPC || OS.IsSP) && parent.hwndCB != 0) {
long /*int*/ hwndCB = parent.hwndCB;
TBBUTTONINFO info = new TBBUTTONINFO();
info.cbSize = TBBUTTONINFO.sizeof;
info.dwMask = OS.TBIF_STATE;
OS.SendMessage(hwndCB, OS.TB_GETBUTTONINFO, id, info);
info.fsState &= ~OS.TBSTATE_ENABLED;
if (enabled) info.fsState |= OS.TBSTATE_ENABLED;
OS.SendMessage(hwndCB, OS.TB_SETBUTTONINFO, id, info);
} else {
/*
* Feature in Windows. For some reason, when the menu item
* is a separator, GetMenuItemInfo() always indicates that
* the item is not enabled. The fix is to track the enabled
* state for separators.
*/
if ((style & SWT.SEPARATOR) != 0) {
if (enabled) {
state &= ~DISABLED;
} else {
state |= DISABLED;
}
}
long /*int*/ hMenu = parent.handle;
if (OS.IsWinCE) {
int index = parent.indexOf(this);
if (index == -1) return;
int uEnable = OS.MF_BYPOSITION | (enabled ? OS.MF_ENABLED : OS.MF_GRAYED);
OS.EnableMenuItem(hMenu, index, uEnable);
} else {
MENUITEMINFO info = new MENUITEMINFO();
info.cbSize = MENUITEMINFO.sizeof;
info.fMask = OS.MIIM_STATE;
boolean success = OS.GetMenuItemInfo(hMenu, id, false, info);
if (!success) {
int error = OS.GetLastError();
SWT.error(
SWT.ERROR_CANNOT_SET_ENABLED,
null,
" [GetLastError=0x" + Integer.toHexString(error) + "]"); // $NON-NLS-1$ $NON-NLS-2$
}
int bits = OS.MFS_DISABLED | OS.MFS_GRAYED;
if (enabled) {
if ((info.fState & bits) == 0) return;
info.fState &= ~bits;
} else {
if ((info.fState & bits) == bits) return;
info.fState |= bits;
}
success = OS.SetMenuItemInfo(hMenu, id, false, info);
if (!success) {
/*
* Bug in Windows. For some reason SetMenuItemInfo(),
* returns a fail code when setting the enabled or
* selected state of a default item, but sets the
* state anyway. The fix is to ignore the error.
*
* NOTE: This only happens on Vista.
*/
if (!OS.IsWinCE && OS.WIN32_VERSION >= OS.VERSION(6, 0)) {
success = id == OS.GetMenuDefaultItem(hMenu, OS.MF_BYCOMMAND, OS.GMDI_USEDISABLED);
}
if (!success) {
int error = OS.GetLastError();
SWT.error(
SWT.ERROR_CANNOT_SET_ENABLED,
null,
" [GetLastError=0x" + Integer.toHexString(error) + "]"); // $NON-NLS-1$ $NON-NLS-2$
}
}
}
}
parent.destroyAccelerators();
parent.redraw();
}
/**
* 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();
}