public static void main(String[] args) {
final Display display = new Display();
final Shell shell = new Shell(display);
shell.setLayout(new FillLayout());
final StyledText styledText = new StyledText(shell, SWT.WRAP | SWT.BORDER);
styledText.setText(text);
FontData data = display.getSystemFont().getFontData()[0];
Font font = new Font(display, data.getName(), 16, SWT.BOLD);
styledText.setFont(font);
styledText.setForeground(display.getSystemColor(SWT.COLOR_BLUE));
styledText.addListener(
SWT.Resize,
new Listener() {
public void handleEvent(Event event) {
Rectangle rect = styledText.getClientArea();
Image newImage = new Image(display, 1, Math.max(1, rect.height));
GC gc = new GC(newImage);
gc.setForeground(display.getSystemColor(SWT.COLOR_WHITE));
gc.setBackground(display.getSystemColor(SWT.COLOR_YELLOW));
gc.fillGradientRectangle(rect.x, rect.y, 1, rect.height, true);
gc.dispose();
styledText.setBackgroundImage(newImage);
if (oldImage != null) oldImage.dispose();
oldImage = newImage;
}
});
shell.setSize(700, 400);
shell.open();
while (!shell.isDisposed()) {
if (!display.readAndDispatch()) display.sleep();
}
if (oldImage != null) oldImage.dispose();
font.dispose();
display.dispose();
}
/**
* Returns a bold version of the given {@link Font}.
*
* @param baseFont the {@link Font} for which a bold version is desired
* @return the bold version of the given {@link Font}
*/
public static Font getBoldFont(Font baseFont) {
Font font = m_fontToBoldFontMap.get(baseFont);
if (font == null) {
FontData fontDatas[] = baseFont.getFontData();
FontData data = fontDatas[0];
font = new Font(Display.getCurrent(), data.getName(), data.getHeight(), SWT.BOLD);
m_fontToBoldFontMap.put(baseFont, font);
}
return font;
}
/**
* Returns <code>FontData</code> objects which describe the fonts that match the given arguments.
* If the <code>faceName</code> is null, all fonts will be returned.
*
* @param faceName the name of the font to look for, or null
* @param scalable if true only scalable fonts are returned, otherwise only non-scalable fonts are
* returned.
* @return the matching font data
* @exception SWTException
* <ul>
* <li>ERROR_DEVICE_DISPOSED - if the receiver has been disposed
* </ul>
*/
public FontData[] getFontList(String faceName, boolean scalable) {
checkDevice();
if (!scalable) return new FontData[0];
int typefaces;
if (faceName != null) {
int length = faceName.length();
char[] chars = new char[length + 1];
faceName.getChars(0, length, chars, 0);
int str = OS.gcnew_String(chars);
int fontFamily = OS.gcnew_FontFamily(str);
typefaces = OS.FontFamily_GetTypefaces(fontFamily);
OS.GCHandle_Free(fontFamily);
OS.GCHandle_Free(str);
} else {
typefaces = OS.Fonts_SystemTypefaces();
}
int count = OS.TypefaceCollection_Count(typefaces);
int index = 0;
FontData[] result = new FontData[count];
int enumerator = OS.TypefaceCollection_GetEnumerator(typefaces);
while (OS.IEnumerator_MoveNext(enumerator)) {
int typeface = OS.TypefaceCollection_Current(enumerator);
int fontFamily = OS.Typeface_FontFamily(typeface);
int style = OS.Typeface_Style(typeface);
int weight = OS.Typeface_Weight(typeface);
int stretch = OS.Typeface_Stretch(typeface);
int str = OS.FontFamily_Source(fontFamily);
int charArray = OS.String_ToCharArray(str);
char[] chars = new char[OS.String_Length(str)];
OS.memcpy(chars, charArray, chars.length * 2);
int fontStyle = OS.FontStyles_Normal;
if (OS.Object_Equals(style, OS.FontStyles_Italic)) fontStyle = OS.FontStyles_Italic;
if (OS.Object_Equals(style, OS.FontStyles_Oblique)) fontStyle = OS.FontStyles_Oblique;
FontData data =
FontData.wpf_new(
new String(chars),
fontStyle,
OS.FontWeight_ToOpenTypeWeight(weight),
OS.FontStretch_ToOpenTypeStretch(stretch),
0);
OS.GCHandle_Free(charArray);
OS.GCHandle_Free(str);
OS.GCHandle_Free(fontFamily);
OS.GCHandle_Free(style);
OS.GCHandle_Free(weight);
OS.GCHandle_Free(stretch);
OS.GCHandle_Free(typeface);
result[index++] = data;
}
OS.GCHandle_Free(enumerator);
OS.GCHandle_Free(typefaces);
return result;
}
private static void paintImage2(GC gc, Point size, int f) {
gc.setBackground(gc.getDevice().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND));
gc.fillRectangle(0, 0, size.x, size.y);
// Scale line width, corner roundness, and font size.
// Caveat: line width expands in all directions, so the origin also has to move.
gc.setBackground(gc.getDevice().getSystemColor(SWT.COLOR_LIST_SELECTION));
gc.fillRoundRectangle(f / 2, f / 2, size.x - f, size.y - f, 10 * f, 10 * f);
gc.setBackground(gc.getDevice().getSystemColor(SWT.COLOR_WIDGET_BACKGROUND));
gc.setLineWidth(f);
gc.drawRoundRectangle(f / 2, f / 2, size.x - f, size.y - f, 10 * f, 10 * f);
FontData fontData = gc.getFont().getFontData()[0];
fontData.setHeight(fontData.getHeight() * f);
Font font = new Font(gc.getDevice(), fontData);
try {
gc.setFont(font);
gc.drawText(fontData.toString(), 10 * f, 10 * f, true);
} finally {
font.dispose();
}
}
