FontData
+ * object which encapsulates this data.
+ *
+ * Application code must explicitly invoke the Font.dispose()
+ * method to release the operating system resources managed by each instance
+ * when those instances are no longer required.
+ *
+ * IMPORTANT: This field is not part of the SWT public API. + * It is marked public only so that it can be shared within the packages + * provided by SWT. It is not available on all platforms and should never be + * accessed from application code. + *
+ */ + public int handle; + + Device device; + boolean extraFontStyle; + String xlfd; + + /** + * Prevents uninitialized instances from being created outside the package. + */ + Font() { + } + + /** + * Constructs a new font given a device and font data which describes the + * desired font's appearance. + *+ * You must dispose the font when it is no longer required. + *
+ * + * @param device + * the device to create the font on + * @param fd + * the FontData that describes the desired font (must not be + * null) + * + * @exception IllegalArgumentException + *+ * You must dispose the font when it is no longer required. + *
+ * + * @param device + * the device to create the font on + * @param fds + * the array of FontData that describes the desired font (must + * not be null) + * + * @exception IllegalArgumentException + *+ * You must dispose the font when it is no longer required. + *
+ * + * @param device + * the device to create the font on + * @param name + * the name of the font (must not be null) + * @param height + * the font height in points + * @param style + * a bit or combination of NORMAL, BOLD, ITALIC + * + * @exception IllegalArgumentException + *true if the object is the same as this object and
+ * false otherwise
+ *
+ * @see #hashCode
+ */
+ public boolean equals(Object object) {
+ if (object == this)
+ return true;
+ if (!(object instanceof Font))
+ return false;
+ return OS.QFont_swt_equals(handle,((Font) object).handle);
+ }
+
+ /**
+ * Returns an array of FontDatas representing the receiver. On
+ * Windows, only one FontData will be returned per font. On X however, a
+ * Font object may be composed of multiple X fonts. To
+ * support this case, we return an array of font data objects.
+ *
+ * @return an array of font data objects describing the receiver
+ *
+ * @exception SWTException
+ * true when passed to equals must return
+ * the same value for this method.
+ *
+ * @return the receiver's hash
+ *
+ * @see #equals
+ */
+ public int hashCode() {
+ return handle;
+ }
+
+ void init(Device device, String name, int height, int style) {
+ extraFontStyle = false;
+ xlfd = null;
+ if (device == null)
+ device = Device.getDevice();
+ if (device == null)
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ this.device = device;
+ if (name == null)
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ if (height < 0)
+ SWT.error(SWT.ERROR_INVALID_ARGUMENT);
+
+ // Keep this after dealing with all exceptions!
+ if (device.tracking)
+ device.new_Object(this);
+
+ boolean italic = (style & SWT.ITALIC) != 0;
+ int weight = OS.QT_FONTNORMAL;
+ if ((style & SWT.BOLD) != 0) {
+ weight = OS.QT_FONTBOLD;
+ }
+ handle = OS.QFont_new(name, height, weight, italic);
+ }
+
+ void initExtraFontData(FontData fd) {
+ if (fd.xlfd != null) {
+ OS.QFont_setRawName(handle, fd.xlfd);
+ xlfd = fd.xlfd;
+ } else if (fd.extraFontData != null) {
+ QtSupplementaryFontData extraData = fd.extraFontData;
+ if (extraData.underline > -1) {
+ OS.QFont_setUnderline(handle, extraData.underline > 0 ? true
+ : false);
+ }
+ if (extraData.overline > -1) {
+ OS.QFont_setOverline(handle, extraData.overline > 0 ? true
+ : false);
+ }
+ if (extraData.strikeOut > -1) {
+ OS.QFont_setStrikeOut(handle, extraData.strikeOut > 0 ? true
+ : false);
+ }
+ if (extraData.stretch > -1) {
+ OS.QFont_setStretch(handle, extraData.stretch);
+ }
+ if (extraData.fixedPitch > -1) {
+ OS.QFont_setFixedPitch(handle, extraData.fixedPitch > 0 ? true
+ : false);
+ }
+ if (extraData.style > -1) {
+ OS.QFont_setStyle(handle, extraData.style);
+ }
+ if (extraData.weight > -1) {
+ OS.QFont_setWeight(handle, extraData.weight);
+ }
+ if (extraData.styleStrategy > -1) {
+ OS.QFont_setStyleStrategy(handle, extraData.styleStrategy);
+ }
+ extraFontStyle = true;
+ }
+ }
+
+ /**
+ * Returns true if the font has been disposed, and
+ * false otherwise.
+ *
+ * This method gets the dispose state for the font. When a font has been
+ * disposed, it is an error to invoke any other method using the font.
+ *
+ * @return true when the font is disposed and
+ * false otherwise
+ */
+ public boolean isDisposed() {
+ return handle == 0;
+ }
+
+ /**
+ * Returns a string containing a concise, human-readable description of the
+ * receiver.
+ *
+ * @return a string representation of the receiver
+ */
+ public String toString() {
+ if (isDisposed())
+ return "Font {*DISPOSED*}";
+ return "Font {" + handle + "}";
+ }
+
+ /*
+ * Invokes platform specific functionality to allocate a new font.
+ */
+ static Font qt_new(Device device, int handle) {
+ if (handle <= 0)
+ return null;
+ if (device == null)
+ device = Device.getDevice();
+ if (device == null)
+ SWT.error(SWT.ERROR_NULL_ARGUMENT);
+ Font font = new Font();
+ font.handle = handle;
+ font.device = device;
+ return font;
+ }
+
+}