/**
* 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);
}
/** 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);
}
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;
}
/**
* 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;
}
}
}
}
/**
* Adds the listener to the collection of listeners who will be notified when the user changes the
* receiver's selection, by sending it one of the messages defined in the <code>SelectionListener
* </code> interface.
*
* <p>When <code>widgetSelected</code> is called, the item field of the event object is valid. If
* the receiver has <code>SWT.CHECK</code> style set and the check selection changes, the event
* object detail field contains the value <code>SWT.CHECK</code>. <code>widgetDefaultSelected
* </code> is typically called when an item is double-clicked.
*
* @param listener the listener which should be notified when the user changes the receiver's
* selection
* @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 SelectionEvent
* @see #removeSelectionListener(SelectionListener)
*/
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);
}
/** 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);
}
}
/**
* 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;
}
}
/**
* 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();
}
}
/**
* 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;
}
/**
* Creates an instance of a ControlExample embedded inside the supplied parent Composite.
*
* @param parent the container of the example
*/
public ControlExample(Composite parent) {
initResources();
tabFolder = new TabFolder(parent, SWT.NONE);
tabs = createTabs();
for (Tab tab : tabs) {
TabItem item = new TabItem(tabFolder, SWT.NONE);
item.setText(tab.getTabText());
item.setControl(tab.createTabFolderPage(tabFolder));
item.setData(tab);
}
/* Workaround: if the tab folder is wider than the screen,
* Mac platforms clip instead of somehow scrolling the tab items.
* We try to recover some width by using shorter tab names. */
Point size = parent.computeSize(SWT.DEFAULT, SWT.DEFAULT);
Rectangle monitorArea = parent.getMonitor().getClientArea();
boolean isMac = SWT.getPlatform().equals("cocoa");
if (size.x > monitorArea.width && isMac) {
TabItem[] tabItems = tabFolder.getItems();
for (int i = 0; i < tabItems.length; i++) {
tabItems[i].setText(tabs[i].getShortTabText());
}
}
startup = false;
}
/** Read and return the next block or extension identifier from the file. */
int readID() {
try {
return inputStream.read();
} catch (IOException e) {
SWT.error(SWT.ERROR_IO, e);
}
return -1;
}
/**
* Positions the TableCursor over the cell at the given row and column in the parent table.
*
* @param row the index of the row for the cell to select
* @param column the index of column for the cell to select
* @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(int row, int column) {
checkWidget();
int columnCount = table.getColumnCount();
int maxColumnIndex = columnCount == 0 ? 0 : columnCount - 1;
if (row < 0 || row >= table.getItemCount() || column < 0 || column > maxColumnIndex)
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
setRowColumn(row, column, false);
}
/**
* Positions the TableCursor over the cell at the given row and column in the parent table.
*
* @param row the TableItem of the row for the cell to select
* @param column the index of column for the cell to select
* @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(TableItem row, int column) {
checkWidget();
int columnCount = table.getColumnCount();
int maxColumnIndex = columnCount == 0 ? 0 : columnCount - 1;
if (row == null || row.isDisposed() || column < 0 || column > maxColumnIndex)
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
setRowColumn(table.indexOf(row), column, false);
}
/**
* Removes the listener from the collection of listeners who will be notified when the user
* changes the receiver's selection.
*
* @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 SelectionListener
* @see #addSelectionListener(SelectionListener)
* @since 3.0
*/
public void removeSelectionListener(SelectionListener listener) {
checkWidget();
if (listener == null) {
SWT.error(SWT.ERROR_NULL_ARGUMENT);
}
removeListener(SWT.Selection, listener);
removeListener(SWT.DefaultSelection, listener);
}
/**
* Set the horizontal alignment of the CLabel. Use the values LEFT, CENTER and RIGHT to align
* image and text within the available space.
*
* @param align the alignment style of LEFT, RIGHT or CENTER
* @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
* <li>ERROR_INVALID_ARGUMENT - if the value of align is not one of SWT.LEFT, SWT.RIGHT or
* SWT.CENTER
* </ul>
*/
public void setAlignment(int align) {
checkWidget();
if (align != SWT.LEFT && align != SWT.RIGHT && align != SWT.CENTER) {
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
}
if (this.align != align) {
this.align = align;
redraw();
}
}
/**
* Compress numBytes bytes of image data from src, storing in dest (starting at 0), using the
* technique specified by comp. If last is true, this indicates the last line of the image. Answer
* the size of the compressed data.
*/
int compress(int comp, byte[] src, int srcOffset, int numBytes, byte[] dest, boolean last) {
if (comp == 1) { // BMP_RLE8_COMPRESSION
return compressRLE8Data(src, srcOffset, numBytes, dest, last);
}
if (comp == 2) { // BMP_RLE4_COMPRESSION
return compressRLE4Data(src, srcOffset, numBytes, dest, last);
}
SWT.error(SWT.ERROR_INVALID_IMAGE);
return 0;
}
PaletteData loadPalette(byte[] infoHeader) {
int depth = (infoHeader[14] & 0xFF) | ((infoHeader[15] & 0xFF) << 8);
if (depth <= 8) {
int numColors =
(infoHeader[32] & 0xFF)
| ((infoHeader[33] & 0xFF) << 8)
| ((infoHeader[34] & 0xFF) << 16)
| ((infoHeader[35] & 0xFF) << 24);
if (numColors == 0) {
numColors = 1 << depth;
} else {
if (numColors > 256) numColors = 256;
}
byte[] buf = new byte[numColors * 4];
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 (depth == 16) {
if (this.compression == 3) {
try {
return new PaletteData(
inputStream.readInt(), inputStream.readInt(), inputStream.readInt());
} catch (IOException e) {
SWT.error(SWT.ERROR_IO, e);
}
}
return new PaletteData(0x7C00, 0x3E0, 0x1F);
}
if (depth == 24) return new PaletteData(0xFF, 0xFF00, 0xFF0000);
if (this.compression == 3) {
try {
return new PaletteData(inputStream.readInt(), inputStream.readInt(), inputStream.readInt());
} catch (IOException e) {
SWT.error(SWT.ERROR_IO, e);
}
}
return new PaletteData(0xFF00, 0xFF0000, 0xFF000000);
}
/**
* Executes the program with the file as the single argument in the operating system. It is the
* responsibility of the programmer to ensure that the file contains valid data for this program.
*
* @param fileName the file or program name
* @return <code>true</code> if the file is launched, otherwise <code>false</code>
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT when fileName is null
* </ul>
*/
public boolean execute(String fileName) {
if (fileName == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
NSAutoreleasePool pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init();
try {
NSWorkspace workspace = NSWorkspace.sharedWorkspace();
NSURL url = getURL(fileName);
NSArray urls = NSArray.arrayWithObject(url);
return workspace.openURLs(urls, NSString.stringWith(identifier), 0, null, 0);
} finally {
pool.release();
}
}
/** Read a control extension. Return the extension block data. */
byte[] readExtension() {
int extensionID = readID();
if (extensionID == GIF_COMMENT_BLOCK_ID) return readCommentExtension();
if (extensionID == GIF_PLAIN_TEXT_BLOCK_ID) return readPlainTextExtension();
if (extensionID == GIF_GRAPHICS_CONTROL_BLOCK_ID) return readGraphicsControlExtension();
if (extensionID == GIF_APPLICATION_EXTENSION_BLOCK_ID) return readApplicationExtension();
// Otherwise, we don't recognize the block. If the
// field size is correct, we can just skip over
// the block contents.
try {
int extSize = inputStream.read();
if (extSize < 0) {
SWT.error(SWT.ERROR_INVALID_IMAGE);
}
byte[] ext = new byte[extSize];
inputStream.read(ext, 0, extSize);
return ext;
} catch (IOException e) {
SWT.error(SWT.ERROR_IO, e);
return null;
}
}
/**
* Write the device independent image array stored in the specified loader to the specified output
* stream.
*/
public void unloadIntoStream(ImageLoader loader, LEDataOutputStream stream) {
try {
outputStream = stream;
unloadIntoByteStream(loader);
outputStream.flush();
} catch (Exception e) {
try {
outputStream.flush();
} catch (Exception f) {
}
SWT.error(SWT.ERROR_IO, e);
}
}
byte[] loadData(byte[] infoHeader, int stride) {
int height =
(infoHeader[8] & 0xFF)
| ((infoHeader[9] & 0xFF) << 8)
| ((infoHeader[10] & 0xFF) << 16)
| ((infoHeader[11] & 0xFF) << 24);
if (height < 0) height = -height;
int dataSize = height * stride;
byte[] data = new byte[dataSize];
int cmp =
(infoHeader[16] & 0xFF)
| ((infoHeader[17] & 0xFF) << 8)
| ((infoHeader[18] & 0xFF) << 16)
| ((infoHeader[19] & 0xFF) << 24);
if (cmp == 0 || cmp == 3) { // BMP_NO_COMPRESSION
try {
if (inputStream.read(data) != dataSize) SWT.error(SWT.ERROR_INVALID_IMAGE);
} catch (IOException e) {
SWT.error(SWT.ERROR_IO, e);
}
} else {
int compressedSize =
(infoHeader[20] & 0xFF)
| ((infoHeader[21] & 0xFF) << 8)
| ((infoHeader[22] & 0xFF) << 16)
| ((infoHeader[23] & 0xFF) << 24);
byte[] compressed = new byte[compressedSize];
try {
if (inputStream.read(compressed) != compressedSize) SWT.error(SWT.ERROR_INVALID_IMAGE);
} catch (IOException e) {
SWT.error(SWT.ERROR_IO, e);
}
decompressData(compressed, data, stride, cmp);
}
return data;
}
/** Write the specified palette to the output stream. */
void writePalette(PaletteData palette, int depth) {
byte[] bytes = new byte[(1 << depth) * 3];
int offset = 0;
for (int i = 0; i < palette.colors.length; i++) {
RGB color = palette.colors[i];
bytes[offset] = (byte) color.red;
bytes[offset + 1] = (byte) color.green;
bytes[offset + 2] = (byte) color.blue;
offset += 3;
}
try {
outputStream.write(bytes);
} catch (IOException e) {
SWT.error(SWT.ERROR_IO, e);
}
}
/**
* We have just read the Comment extension identifier from the input stream. Read in the rest of
* the comment and return it. GIF comment blocks are variable size.
*/
byte[] readCommentExtension() {
try {
byte[] comment = new byte[0];
byte[] block = new byte[255];
int size = inputStream.read();
while ((size > 0) && (inputStream.read(block, 0, size) != -1)) {
byte[] oldComment = comment;
comment = new byte[oldComment.length + size];
System.arraycopy(oldComment, 0, comment, 0, oldComment.length);
System.arraycopy(block, 0, comment, oldComment.length, size);
size = inputStream.read();
}
return comment;
} catch (Exception e) {
SWT.error(SWT.ERROR_IO, e);
return null;
}
}
/**
* Read the specified input stream using the specified loader, and return the device independent
* image array represented by the stream.
*/
public static ImageData[] load(InputStream is, ImageLoader loader) {
FileFormat fileFormat = null;
LEDataInputStream stream = new LEDataInputStream(is);
for (int i = 1; i < FORMATS.length; i++) {
if (FORMATS[i] != null) {
try {
fileFormat = getFileFormat(stream, FORMATS[i]);
if (fileFormat != null) break;
} catch (ClassNotFoundException e) {
FORMATS[i] = null;
} catch (Exception e) {
}
}
}
if (fileFormat == null) SWT.error(SWT.ERROR_UNSUPPORTED_FORMAT);
fileFormat.loader = loader;
return fileFormat.loadFromStream(stream);
}
/**
* Prepare the given image's data for unloading into a byte stream using no compression strategy.
* Answer the number of bytes written. Method modified to use the passed data if it is not null.
*/
int unloadDataNoCompression(ImageData image, byte[] data, OutputStream out) {
int bmpBpl = 0;
try {
int bpl = (image.width * image.depth + 7) / 8;
bmpBpl = (bpl + 3) / 4 * 4; // BMP pads scanlines to multiples of 4 bytes
int linesPerBuf = 32678 / bmpBpl;
byte[] buf = new byte[linesPerBuf * bmpBpl];
if (data == null) data = image.data;
int imageBpl = image.bytesPerLine;
int dataIndex = imageBpl * (image.height - 1); // Start at last line
if (image.depth == 16) {
for (int y = 0; y < image.height; y += linesPerBuf) {
int count = image.height - y;
if (linesPerBuf < count) count = linesPerBuf;
int bufOffset = 0;
for (int i = 0; i < count; i++) {
for (int wIndex = 0; wIndex < bpl; wIndex += 2) {
buf[bufOffset + wIndex + 1] = data[dataIndex + wIndex + 1];
buf[bufOffset + wIndex] = data[dataIndex + wIndex];
}
bufOffset += bmpBpl;
dataIndex -= imageBpl;
}
out.write(buf, 0, bufOffset);
}
} else {
for (int y = 0; y < image.height; y += linesPerBuf) {
int tmp = image.height - y;
int count = tmp < linesPerBuf ? tmp : linesPerBuf;
int bufOffset = 0;
for (int i = 0; i < count; i++) {
System.arraycopy(data, dataIndex, buf, bufOffset, bpl);
bufOffset += bmpBpl;
dataIndex -= imageBpl;
}
out.write(buf, 0, bufOffset);
}
}
} catch (IOException e) {
SWT.error(SWT.ERROR_IO, e);
}
return bmpBpl * image.height;
}
/**
* Launches the operating system executable associated with the file or URL (http:// or https://).
* If the file is an executable then the executable is launched. The program is launched with the
* specified working directory only when the <code>workingDir</code> exists and <code>fileName
* </code> is an executable. Note that a <code>Display</code> must already exist to guarantee that
* this method returns an appropriate result.
*
* @param fileName the file name or program name or URL (http:// or https://)
* @param workingDir the name of the working directory or null
* @return <code>true</code> if the file is launched, otherwise <code>false</code>
* @exception IllegalArgumentException
* <ul>
* <li>ERROR_NULL_ARGUMENT when fileName is null
* </ul>
*
* @since 3.6
*/
public static boolean launch(String fileName, String workingDir) {
if (fileName == null) SWT.error(SWT.ERROR_NULL_ARGUMENT);
NSAutoreleasePool pool = (NSAutoreleasePool) new NSAutoreleasePool().alloc().init();
try {
if (workingDir != null && isExecutable(fileName)) {
try {
Compatibility.exec(new String[] {fileName}, null, workingDir);
return true;
} catch (IOException e) {
return false;
}
}
NSURL url = getURL(fileName);
NSWorkspace workspace = NSWorkspace.sharedWorkspace();
return workspace.openURL(url);
} finally {
pool.release();
}
}
/**
* 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();
}
/**
* Sets the receiver's background color to the color specified by the argument, or to the default
* system color for the item if the argument is null.
*
* @param color the new color (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 2.0
*/
public void setBackground(Color color) {
checkWidget();
if (color != null && color.isDisposed()) {
SWT.error(SWT.ERROR_INVALID_ARGUMENT);
}
if (_getBackground().equals(color)) return;
GdkColor gdkColor = color != null ? color.handle : null;
OS.gtk_list_store_set(parent.modelHandle, handle, Table.BACKGROUND_COLUMN, gdkColor, -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;
}