/**
* Loads the font specified by a file. The font will be present in the list of fonts available to
* the application.
*
* @param path the font file path
* @return whether the font was successfully loaded
* @exception SWTException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if path is null
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed
* </ul>
*
* @see Font
* @since 3.3
*/
public boolean loadFont(String path) {
checkDevice();
if (path == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
int length = path.length();
char[] buffer = new char[length + 1];
path.getChars(0, length, buffer, 0);
int str = OS.gcnew_String(buffer);
int uri = OS.gcnew_Uri(str, OS.UriKind_RelativeOrAbsolute);
int list = OS.Fonts_GetTypefaces(uri);
int count = OS.TypefaceCollection_Count(list);
OS.GCHandle_Free(list);
OS.GCHandle_Free(uri);
OS.GCHandle_Free(str);
return count != 0;
}
/**
* Throws an <code>SWTException</code> if the receiver can not be accessed by the caller. This may
* include both checks on the state of the receiver and more generally on the entire execution
* context. This method <em>should</em> be called by device implementors to enforce the standard
* SWT invariants.
*
* <p>Currently, it is an error to invoke any method (other than <code>isDisposed()</code> and
* <code>dispose()</code>) on a device that has had its <code>dispose()</code> method called.
*
* <p>In future releases of SWT, there may be more or fewer error checks and exceptions may be
* thrown for different reasons.
*
* <p>
*
* @exception SWTException
* <ul>
* <li>ERROR_WIDGET_DISPOSED - if the receiver has been disposed
* </ul>
*/
protected void checkDevice() {
if (disposed) SWT.error(SWT.ERROR_DEVICE_DISPOSED);
}