/**
* Write the device independent image array stored in the specified loader to the specified output
* stream using the specified file format.
*/
public static void save(OutputStream os, int format, ImageLoader loader) {
if (format < 0 || format >= FORMATS.length) SWT.error(SWT.ERROR_UNSUPPORTED_FORMAT);
if (FORMATS[format] == null) SWT.error(SWT.ERROR_UNSUPPORTED_FORMAT);
if (loader.data == null || loader.data.length < 1) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
LEDataOutputStream stream = new LEDataOutputStream(os);
FileFormat fileFormat = null;
try {
Class clazz = Class.forName(FORMAT_PACKAGE + '.' + FORMATS[format] + FORMAT_SUFFIX);
fileFormat = (FileFormat) clazz.newInstance();
} catch (Exception e) {
SWT.error(SWT.ERROR_UNSUPPORTED_FORMAT);
}
if (format == SWT.IMAGE_BMP_RLE) {
switch (loader.data[0].depth) {
case 8:
fileFormat.compression = 1;
break;
case 4:
fileFormat.compression = 2;
break;
}
}
fileFormat.unloadIntoStream(loader, stream);
}
ImageData[] loadFromByteStream() {
int[] fileHeader = loadFileHeader();
byte[] infoHeader = new byte[BMPHeaderFixedSize];
try {
inputStream.read(infoHeader);
} catch (Exception e) {
SWT.error(SWT.ERROR_IO, e);
}
width = (infoHeader[4] & 0xFF) | ((infoHeader[5] & 0xFF) << 8);
height = (infoHeader[6] & 0xFF) | ((infoHeader[7] & 0xFF) << 8);
bitCount = (infoHeader[10] & 0xFF) | ((infoHeader[11] & 0xFF) << 8);
PaletteData palette = loadPalette(infoHeader);
if (inputStream.getPosition() < fileHeader[4]) {
// Seek to the specified offset
try {
inputStream.skip(fileHeader[4] - inputStream.getPosition());
} catch (IOException e) {
SWT.error(SWT.ERROR_IO, e);
}
}
byte[] data = loadData(infoHeader);
int type = SWT.IMAGE_OS2_BMP;
return new ImageData[] {
ImageData.internal_new(
width, height, bitCount, palette, 4, data, 0, null, null, -1, -1, type, 0, 0, 0, 0)
};
}
/**
* Replaces the first two elements in the parameter with values that describe the current point of
* the path.
*
* @param point the array to hold the result
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the parameter is null
* <li>ERROR_INVALID_ARGUMENT - if the parameter is too small to hold the end point
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
* </ul>
*/
public void getCurrentPoint(float[] point) {
if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
if (point == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if (point.length < 2) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
NSPoint pt = handle.currentPoint();
point[0] = pt.x;
point[1] = pt.y;
}
/**
* Replaces the first four elements in the parameter with values that describe the smallest
* rectangle that will completely contain the receiver (i.e. the bounding box).
*
* @param bounds the array to hold the result
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the parameter is null
* <li>ERROR_INVALID_ARGUMENT - if the parameter is too small to hold the bounding box
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
* </ul>
*/
public void getBounds(float[] bounds) {
if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
if (bounds == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if (bounds.length < 4) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
NSRect rect = handle.controlPointBounds();
bounds[0] = rect.x;
bounds[1] = rect.y;
bounds[2] = rect.width;
bounds[3] = rect.height;
}
byte[] loadData(byte[] infoHeader, int stride) {
int dataSize = height * stride;
byte[] data = new byte[dataSize];
try {
if (inputStream.read(data) != dataSize) SWT.error(SWT.ERROR_INVALID_IMAGE);
} catch (IOException e) {
SWT.error(SWT.ERROR_IO, e);
}
return data;
}
/**
* Returns <code>true</code> if the specified point is contained by the receiver and false
* otherwise.
*
* <p>If outline is <code>true</code>, the point (x, y) checked for containment in the receiver's
* outline. If outline is <code>false</code>, the point is checked to see if it is contained
* within the bounds of the (closed) area covered by the receiver.
*
* @param x the x coordinate of the point to test for containment
* @param y the y coordinate of the point to test for containment
* @param gc the GC to use when testing for containment
* @param outline controls whether to check the outline or contained area of the path
* @return <code>true</code> if the path contains the point and <code>false</code> otherwise
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the gc is null
* <li>ERROR_INVALID_ARGUMENT - if the gc has been disposed
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
* </ul>
*/
public boolean contains(float x, float y, GC gc, boolean outline) {
if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
if (gc == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if (gc.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
// gc.checkGC(GC.LINE_CAP | GC.LINE_JOIN | GC.LINE_STYLE | GC.LINE_WIDTH);
// TODO outline
NSPoint point = new NSPoint();
point.x = x;
point.y = y;
return handle.containsPoint(point);
}
/** Read a palette from the input stream. */
PaletteData readPalette(int numColors) {
byte[] bytes = new byte[numColors * 3];
try {
if (inputStream.read(bytes) != bytes.length) SWT.error(SWT.ERROR_INVALID_IMAGE);
} catch (IOException e) {
SWT.error(SWT.ERROR_IO, e);
}
RGB[] colors = new RGB[numColors];
for (int i = 0; i < numColors; i++)
colors[i] = new RGB(bytes[i * 3] & 0xFF, bytes[i * 3 + 1] & 0xFF, bytes[i * 3 + 2] & 0xFF);
return new PaletteData(colors);
}
/**
* Constructs a new Pattern given an image. Drawing with the resulting pattern will cause the
* image to be tiled over the resulting area.
*
* <p>This operation requires the operating system's advanced graphics subsystem which may not be
* available on some platforms.
*
* @param device the device on which to allocate the pattern
* @param image the image that the pattern will draw
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the device is null and there is no current device, or the
* image is null
* <li>ERROR_INVALID_ARGUMENT - if the image has been disposed
* </ul>
*
* @exception SWTException
* <ul>
* <li>ERROR_NO_GRAPHICS_LIBRARY - if advanced graphics are not available
* </ul>
*
* @exception SWTError
* <ul>
* <li>ERROR_NO_HANDLES if a handle for the pattern could not be obtained
* </ul>
*
* @see #dispose()
*/
public Pattern(Device device, Image image) {
super(device);
if (image == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if (image.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
this.device.checkCairo();
image.createSurface();
handle = Cairo.cairo_pattern_create_for_surface(image.surface);
if (handle == 0) SWT.error(SWT.ERROR_NO_HANDLES);
Cairo.cairo_pattern_set_extend(handle, Cairo.CAIRO_EXTEND_REPEAT);
surface = image.surface;
init();
}
/**
* Returns a device independent representation of the receiver.
*
* @return the PathData for the receiver
* @exception SWTException
* <ul>
* <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
* </ul>
*
* @see PathData
*/
public PathData getPathData() {
if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
int count = handle.elementCount();
int pointCount = 0, typeCount = 0;
byte[] types = new byte[count];
float[] pointArray = new float[count * 6];
int points = OS.malloc(3 * NSPoint.sizeof);
if (points == 0) SWT.error(SWT.ERROR_NO_HANDLES);
NSPoint pt = new NSPoint();
for (int i = 0; i < count; i++) {
int element = handle.elementAtIndex_associatedPoints_(i, points);
switch (element) {
case OS.NSMoveToBezierPathElement:
types[typeCount++] = SWT.PATH_MOVE_TO;
OS.memmove(pt, points, NSPoint.sizeof);
pointArray[pointCount++] = (int) pt.x;
pointArray[pointCount++] = (int) pt.y;
break;
case OS.NSLineToBezierPathElement:
types[typeCount++] = SWT.PATH_LINE_TO;
OS.memmove(pt, points, NSPoint.sizeof);
pointArray[pointCount++] = (int) pt.x;
pointArray[pointCount++] = (int) pt.y;
break;
case OS.NSCurveToBezierPathElement:
types[typeCount++] = SWT.PATH_CUBIC_TO;
OS.memmove(pt, points, NSPoint.sizeof);
pointArray[pointCount++] = (int) pt.x;
pointArray[pointCount++] = (int) pt.y;
OS.memmove(pt, points + NSPoint.sizeof, NSPoint.sizeof);
pointArray[pointCount++] = (int) pt.x;
pointArray[pointCount++] = (int) pt.y;
OS.memmove(pt, points + NSPoint.sizeof + NSPoint.sizeof, NSPoint.sizeof);
pointArray[pointCount++] = (int) pt.x;
pointArray[pointCount++] = (int) pt.y;
break;
case OS.NSClosePathBezierPathElement:
types[typeCount++] = SWT.PATH_CLOSE;
break;
}
}
OS.free(points);
if (pointCount != pointArray.length) {
float[] temp = new float[pointCount];
System.arraycopy(pointArray, 0, temp, 0, pointCount);
pointArray = temp;
}
PathData data = new PathData();
data.types = types;
data.points = pointArray;
return data;
}
void decompressData(byte[] src, byte[] dest, int stride, int cmp) {
if (cmp == 1) { // BMP_RLE8_COMPRESSION
if (decompressRLE8Data(src, src.length, stride, dest, dest.length) <= 0)
SWT.error(SWT.ERROR_INVALID_IMAGE);
return;
}
if (cmp == 2) { // BMP_RLE4_COMPRESSION
if (decompressRLE4Data(src, src.length, stride, dest, dest.length) <= 0)
SWT.error(SWT.ERROR_INVALID_IMAGE);
return;
}
SWT.error(SWT.ERROR_INVALID_IMAGE);
}
/**
* Read the specified input stream, and return the device independent image array represented by
* the stream.
*/
public ImageData[] loadFromStream(LEDataInputStream stream) {
try {
inputStream = stream;
return loadFromByteStream();
} catch (Exception e) {
if (e instanceof IOException) {
SWT.error(SWT.ERROR_IO, e);
} else {
SWT.error(SWT.ERROR_INVALID_IMAGE, e);
}
return null;
}
}
int[] loadFileHeader() {
int[] header = new int[5];
try {
header[0] = inputStream.readShort();
header[1] = inputStream.readInt();
header[2] = inputStream.readShort();
header[3] = inputStream.readShort();
header[4] = inputStream.readInt();
} catch (IOException e) {
SWT.error(SWT.ERROR_IO, e);
}
if (header[0] != 0x4D42) SWT.error(SWT.ERROR_INVALID_IMAGE);
return header;
}
PaletteData loadPalette(byte[] infoHeader) {
if (bitCount <= 8) {
int numColors = 1 << bitCount;
byte[] buf = new byte[numColors * 3];
try {
if (inputStream.read(buf) != buf.length) SWT.error(SWT.ERROR_INVALID_IMAGE);
} catch (IOException e) {
SWT.error(SWT.ERROR_IO, e);
}
return paletteFromBytes(buf, numColors);
}
if (bitCount == 16) return new PaletteData(0x7C00, 0x3E0, 0x1F);
if (bitCount == 24) return new PaletteData(0xFF, 0xFF00, 0xFF0000);
return new PaletteData(0xFF00, 0xFF0000, 0xFF000000);
}
/**
* Finds the program that is associated with an extension. The extension may or may not begin with
* a '.'. Note that a <code>Display</code> must already exist to guarantee that this method
* returns an appropriate result.
*
* @param extension the program extension
* @return the program or <code>null</code>
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT when extension is null
* </ul>
*/
public static Program findProgram(String extension) {
NSAutoreleasePool pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init();
try {
if (extension == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if (extension.length() == 0) return null;
Program program = null;
char[] chars;
if (extension.charAt(0) != '.') {
chars = new char[extension.length()];
extension.getChars(0, chars.length, chars, 0);
} else {
chars = new char[extension.length() - 1];
extension.getChars(1, extension.length(), chars, 0);
}
NSString ext = NSString.stringWithCharacters(chars, chars.length);
if (ext != null) {
byte[] fsRef = new byte[80];
if (OS.LSGetApplicationForInfo(
OS.kLSUnknownType, OS.kLSUnknownCreator, ext.id, OS.kLSRolesAll, fsRef, null)
== OS.noErr) {
long /*int*/ url = OS.CFURLCreateFromFSRef(OS.kCFAllocatorDefault(), fsRef);
if (url != 0) {
NSString bundlePath = new NSURL(url).path();
NSBundle bundle = NSBundle.bundleWithPath(bundlePath);
if (bundle != null) program = getProgram(bundle);
OS.CFRelease(url);
}
}
}
return program;
} finally {
pool.release();
}
}
public Path(Device device, Path path, float flatness) {
super(device);
if (path == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
if (path.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
flatness = Math.max(0, flatness);
if (flatness == 0) {
handle = new NSBezierPath(path.handle.copy().id);
} else {
float defaultFlatness = NSBezierPath.defaultFlatness();
NSBezierPath.setDefaultFlatness(flatness);
handle = path.handle.bezierPathByFlatteningPath();
NSBezierPath.setDefaultFlatness(defaultFlatness);
}
if (handle == null) SWT.error(SWT.ERROR_NO_HANDLES);
init();
}
/**
* Sets the current point of the receiver to the point specified by (x, y). Note that this starts
* a new sub path.
*
* @param x the x coordinate of the new end point
* @param y the y coordinate of the new end point
* @exception SWTException
* <ul>
* <li>ERROR_GRAPHIC_DISPOSED - if the receiver has been disposed
* </ul>
*/
public void moveTo(float x, float y) {
if (isDisposed()) SWT.error(SWT.ERROR_GRAPHIC_DISPOSED);
NSPoint pt = new NSPoint();
pt.x = x;
pt.y = y;
handle.moveToPoint(pt);
}
void init(PathData data) {
byte[] types = data.types;
float[] points = data.points;
for (int i = 0, j = 0; i < types.length; i++) {
switch (types[i]) {
case SWT.PATH_MOVE_TO:
moveTo(points[j++], points[j++]);
break;
case SWT.PATH_LINE_TO:
lineTo(points[j++], points[j++]);
break;
case SWT.PATH_CUBIC_TO:
cubicTo(points[j++], points[j++], points[j++], points[j++], points[j++], points[j++]);
break;
case SWT.PATH_QUAD_TO:
quadTo(points[j++], points[j++], points[j++], points[j++]);
break;
case SWT.PATH_CLOSE:
close();
break;
default:
dispose();
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
}
}
}
/**
* Sets the font that the receiver will use to paint textual information for the specified cell in
* this item to the font specified by the argument, or to the default font for that kind of
* control if the argument is null.
*
* @param index the column index
* @param font the new font (or null)
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_INVALID_ARGUMENT - if the argument has been disposed
* </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>
*
* @since 3.0
*/
public void setFont(int index, Font font) {
checkWidget();
if (font != null && font.isDisposed()) {
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
}
int count = Math.max(1, parent.getColumnCount());
if (0 > index || index > count - 1) return;
if (cellFont == null) {
if (font == null) return;
cellFont = new Font[count];
}
Font oldFont = cellFont[index];
if (oldFont == font) return;
cellFont[index] = font;
if (oldFont != null && oldFont.equals(font)) return;
int modelIndex =
parent.columnCount == 0 ? Table.FIRST_COLUMN : parent.columns[index].modelIndex;
int /*long*/ fontHandle = font != null ? font.handle : 0;
OS.gtk_list_store_set(parent.modelHandle, handle, modelIndex + Table.CELL_FONT, fontHandle, -1);
/*
* Bug in GTK. When using fixed-height-mode,
* row changes do not cause the row to be repainted. The fix is to
* invalidate the row when it is cleared.
*/
if ((parent.style & SWT.VIRTUAL) != 0) {
if (OS.GTK_VERSION >= OS.VERSION(2, 3, 2) && OS.GTK_VERSION < OS.VERSION(2, 6, 3)) {
redraw();
}
}
cached = true;
if (font != null) {
boolean customDraw =
(parent.columnCount == 0) ? parent.firstCustomDraw : parent.columns[index].customDraw;
if (!customDraw) {
if ((parent.style & SWT.VIRTUAL) == 0) {
int /*long*/ parentHandle = parent.handle;
int /*long*/ column = 0;
if (parent.columnCount > 0) {
column = parent.columns[index].handle;
} else {
column = OS.gtk_tree_view_get_column(parentHandle, index);
}
if (column == 0) return;
int /*long*/ textRenderer = parent.getTextRenderer(column);
int /*long*/ imageRenderer = parent.getPixbufRenderer(column);
OS.gtk_tree_view_column_set_cell_data_func(
column, textRenderer, display.cellDataProc, parentHandle, 0);
OS.gtk_tree_view_column_set_cell_data_func(
column, imageRenderer, display.cellDataProc, parentHandle, 0);
}
if (parent.columnCount == 0) {
parent.firstCustomDraw = true;
} else {
parent.columns[index].customDraw = true;
}
}
}
}
/**
* We have just read the GraphicsControl extension identifier from the input stream. Read in the
* control information, store it, and return it.
*/
byte[] readGraphicsControlExtension() {
try {
// Read size of block = 0x04.
inputStream.read();
// Read the control block.
byte[] controlBlock = new byte[4];
inputStream.read(controlBlock);
byte bitField = controlBlock[0];
// Store the user input field.
// userInput = (bitField & 0x02) != 0;
// Store the disposal method.
disposalMethod = (bitField >> 2) & 0x07;
// Store the delay time.
delayTime = (controlBlock[1] & 0xFF) | ((controlBlock[2] & 0xFF) << 8);
// Store the transparent color.
if ((bitField & 0x01) != 0) {
transparentPixel = controlBlock[3] & 0xFF;
} else {
transparentPixel = -1;
}
return controlBlock;
} catch (Exception e) {
SWT.error(SWT.ERROR_IO, e);
return null;
}
}
/** Write out a GraphicsControlBlock to describe the specified device independent image. */
void writeGraphicsControlBlock(ImageData image) {
try {
outputStream.write(GIF_EXTENSION_BLOCK_ID);
outputStream.write(GIF_GRAPHICS_CONTROL_BLOCK_ID);
byte[] gcBlock = new byte[4];
gcBlock[0] = 0;
gcBlock[1] = 0;
gcBlock[2] = 0;
gcBlock[3] = 0;
if (image.transparentPixel != -1) {
gcBlock[0] = (byte) 0x01;
gcBlock[3] = (byte) image.transparentPixel;
}
if (image.disposalMethod != 0) {
gcBlock[0] |= (byte) ((image.disposalMethod & 0x07) << 2);
}
if (image.delayTime != 0) {
gcBlock[1] = (byte) (image.delayTime & 0xFF);
gcBlock[2] = (byte) ((image.delayTime >> 8) & 0xFF);
}
outputStream.write((byte) gcBlock.length);
outputStream.write(gcBlock);
outputStream.write(0); // Block terminator
} catch (IOException e) {
SWT.error(SWT.ERROR_IO, e);
}
}
/**
* Throws an appropriate exception based on the passed in error code. The <code>hresult</code>
* argument should be either 0, or the platform specific error code.
*
* <p>In DND, errors are reported by throwing one of three exceptions:
*
* <dl>
* <dd>java.lang.IllegalArgumentException
* <dt>thrown whenever one of the API methods is invoked with an illegal argument
* <dd>org.eclipse.swt.SWTException (extends java.lang.RuntimeException)
* <dt>thrown whenever a recoverable error happens internally in SWT
* <dd>org.eclipse.swt.SWTError (extends java.lang.Error)
* <dt>thrown whenever a <b>non-recoverable</b> error happens internally in SWT
* </dl>
*
* This method provides the logic which maps between error codes and one of the above exceptions.
*
* @param code the DND error code.
* @param hresult the platform specific error code.
* @see SWTError
* @see SWTException
* @see IllegalArgumentException
*/
public static void error(int code, int hresult) {
switch (code) {
/* OS Failure/Limit (fatal, may occur only on some platforms) */
case DND.ERROR_CANNOT_INIT_DRAG:
{
String msg = DND.INIT_DRAG_MESSAGE;
if (hresult != 0) msg += " result = " + hresult; // $NON-NLS-1$
throw new SWTError(code, msg);
}
case DND.ERROR_CANNOT_INIT_DROP:
{
String msg = DND.INIT_DROP_MESSAGE;
if (hresult != 0) msg += " result = " + hresult; // $NON-NLS-1$
throw new SWTError(code, msg);
}
case DND.ERROR_CANNOT_SET_CLIPBOARD:
{
String msg = DND.CANNOT_SET_CLIPBOARD_MESSAGE;
if (hresult != 0) msg += " result = " + hresult; // $NON-NLS-1$
throw new SWTError(code, msg);
}
case DND.ERROR_INVALID_DATA:
{
String msg = DND.INVALID_DATA_MESSAGE;
if (hresult != 0) msg += " result = " + hresult; // $NON-NLS-1$
throw new SWTException(code, msg);
}
}
/* Unknown/Undefined Error */
SWT.error(code);
}
/**
* Searches the receiver's list starting at the given, zero-relative index until an item is found
* that is equal to the argument, and returns the index of that item. If no item is found or the
* starting index is out of range, returns -1.
*
* @param string the search item
* @param start the zero-relative index at which to start the search
* @return the index of the item
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the string 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>
*/
public int indexOf(String string, int start) {
checkWidget();
if (string == null) {
SWT.error(SWT.ERROR_NULL_ARGUMENT);
}
return model.indexOf(string, start);
}
/**
* Unload the given image's data into the given byte stream using the given compression strategy.
* Answer the number of bytes written. Method modified to use the passed data if it is not null.
*/
int unloadData(ImageData image, byte[] data, OutputStream out, int comp) {
int totalSize = 0;
try {
if (comp == 0) return unloadDataNoCompression(image, data, out);
int bpl = (image.width * image.depth + 7) / 8;
int bmpBpl = (bpl + 3) / 4 * 4; // BMP pads scanlines to multiples of 4 bytes
int imageBpl = image.bytesPerLine;
// Compression can actually take twice as much space, in worst case
byte[] buf = new byte[bmpBpl * 2];
int srcOffset = imageBpl * (image.height - 1); // Start at last line
if (data == null) data = image.data;
totalSize = 0;
byte[] buf2 = new byte[32768];
int buf2Offset = 0;
for (int y = image.height - 1; y >= 0; y--) {
int lineSize = compress(comp, data, srcOffset, bpl, buf, y == 0);
if (buf2Offset + lineSize > buf2.length) {
out.write(buf2, 0, buf2Offset);
buf2Offset = 0;
}
System.arraycopy(buf, 0, buf2, buf2Offset, lineSize);
buf2Offset += lineSize;
totalSize += lineSize;
srcOffset -= imageBpl;
}
if (buf2Offset > 0) out.write(buf2, 0, buf2Offset);
} catch (IOException e) {
SWT.error(SWT.ERROR_IO, e);
}
return totalSize;
}
/**
* Adds the listener to the collection of listeners who will be notified when the receiver's
* selection changes, by sending it one of the messages defined in the <code>SelectionListener
* </code> interface.
*
* <p><code>widgetSelected</code> is called when the combo's list selection changes. <code>
* widgetDefaultSelected</code> is typically called when ENTER is pressed the combo's text area.
*
* @param listener the listener which should be notified
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener 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 SelectionListener
* @see #removeSelectionListener
* @see SelectionEvent
*/
public void addSelectionListener(SelectionListener listener) {
checkWidget();
if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
TypedListener typedListener = new TypedListener(listener);
addListener(SWT.Selection, typedListener);
addListener(SWT.DefaultSelection, typedListener);
}
/**
* Adds a focus listener.
*
* @param modifyListener the listener
* @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>
*
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT when listener is null
* </ul>
*/
public void addFocusListener(FocusListener focusListener) {
checkWidget();
if (focusListener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
BasicTextListener typedListener = new BasicTextListener(focusListener);
addListener(SWT.FocusOut, typedListener);
addListener(SWT.FocusIn, typedListener);
}
/**
* Removes the listener from the collection of listeners who will be notified when the receiver
* are expanded or collapsed.
*
* @param listener the listener which should no longer be notified
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener 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 ExpandListener
* @see #addExpandListener
*/
public void removeExpandListener(ExpandListener listener) {
checkWidget();
if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
removeListener(SWT.Expand, listener);
removeListener(SWT.Collapse, listener);
}
/**
* Sets the 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>
*/
public void setText(String text) {
checkWidget();
if (text == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
this.text = text;
strategy.update();
redraw();
}
/**
* Sets the image.
*
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the image is disposed
* </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>
*/
public void setImage(Image image) {
checkWidget();
if (image != null && image.isDisposed()) SWT.error(SWT.ERROR_INVALID_ARGUMENT);
this.image = image;
strategy.update();
}
/**
* Adds the listener to the collection of listeners who will be notified when the receiver is
* expanded or collapsed by sending it one of the messages defined in the <code>ExpandListener
* </code> interface.
*
* @param listener the listener which should be notified
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the listener 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 ExpandListener
* @see #removeExpandListener
*/
public void addExpandListener(ExpandListener listener) {
checkWidget();
if (listener == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
TypedListener typedListener = new TypedListener(listener);
addListener(SWT.Expand, typedListener);
addListener(SWT.Collapse, typedListener);
}
/**
* Sets the strategy.
*
* @param strategy the strategy to set
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT - if the strategy 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>
*/
@SuppressWarnings("null")
public void setStrategy(AbstractGroupStrategy strategy) {
checkWidget();
if (strategy == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
this.strategy = strategy;
setForeground(null);
strategy.initialize(this);
}
