* We store our image and imageBufer in PEPeer using
* setData & getData.
*/
// Named infoObj so code can be copied easily to the other PiecesItem
PEPeer infoObj = (PEPeer)cell.getDataSource();
long lCompleted = (infoObj == null) ? 0 : infoObj.getPercentDoneInThousandNotation();
if( !cell.setSortValue( lCompleted ) && cell.isValid() ) {
return;
}
if (infoObj == null)
return;
//Compute bounds ...
int newWidth = cell.getWidth();
if (newWidth <= 0)
return;
int newHeight = cell.getHeight();
int x0 = borderVerticalSize;
int x1 = newWidth - 1 - borderVerticalSize;
int y0 = completionHeight + borderHorizontalSize + borderSplit;
int y1 = newHeight - 1 - borderHorizontalSize;
int drawWidth = x1 - x0 + 1;
if (drawWidth < 10 || y1 < 3)
return;
int[] imageBuffer = (int [])infoObj.getData("PiecesImageBuffer");
boolean bImageBufferValid = imageBuffer != null && imageBuffer.length == drawWidth;
Image image = (Image)infoObj.getData("PiecesImage");
GC gcImage;
boolean bImageChanged;
Rectangle imageBounds;
if (image == null || image.isDisposed()) {
bImageChanged = true;
} else {
imageBounds = image.getBounds();
bImageChanged = imageBounds.width != newWidth ||
imageBounds.height != newHeight;
}
if (bImageChanged) {
if (image != null && !image.isDisposed()) {
image.dispose();
}
image = new Image(SWTThread.getInstance().getDisplay(),
newWidth, newHeight);
imageBounds = image.getBounds();
bImageBufferValid = false;
// draw border
gcImage = new GC(image);
gcImage.setForeground(Colors.grey);
if (borderHorizontalSize > 0) {
if (borderVerticalSize > 0) {
gcImage.drawRectangle(0, 0, newWidth - 1, newHeight - 1);
} else {
gcImage.drawLine(0, 0, newWidth - 1, 0);
gcImage.drawLine(0, newHeight -1, newWidth - 1, newHeight - 1);
}
} else if (borderVerticalSize > 0) {
gcImage.drawLine(0, 0, 0, newHeight - 1);
gcImage.drawLine(newWidth - 1, 0, newWidth - 1, newHeight - 1);
}
if (borderSplit > 0) {
gcImage.setForeground(Colors.white);
gcImage.drawLine(x0, completionHeight + borderHorizontalSize,
x1, completionHeight + borderHorizontalSize);
}
} else {
gcImage = new GC(image);
}
final BitFlags peerHave = infoObj.getAvailable();
boolean established = ((PEPeerTransport)infoObj).getConnectionState() == PEPeerTransport.CONNECTION_FULLY_ESTABLISHED;
if (established && peerHave != null && peerHave.flags.length > 0) {
if (imageBuffer == null || imageBuffer.length != drawWidth) {
imageBuffer = new int[drawWidth];
}
final boolean available[] =peerHave.flags;
try {
int nbComplete = 0;
int nbPieces = available.length;
DiskManager disk_manager = infoObj.getManager().getDiskManager();
DiskManagerPiece[] pieces = disk_manager==null?null:disk_manager.getPieces();
int a0;
int a1 = 0;
for (int i = 0; i < drawWidth; i++) {
if (i == 0) {
// always start out with one piece
a0 = 0;
a1 = nbPieces / drawWidth;
if (a1 == 0)
a1 = 1;
} else {
// the last iteration, a1 will be nbPieces
a0 = a1;
a1 = ((i + 1) * nbPieces) / (drawWidth);
}
int index;
int nbNeeded = 0;
if (a1 <= a0) {
index = imageBuffer[i - 1];
} else {
int nbAvailable = 0;
for (int j = a0; j < a1; j++) {
if (available[j]) {
if (pieces==null || !pieces[j].isDone()) {
nbNeeded++;
}
nbAvailable++;
}
}
nbComplete += nbAvailable;
index = (nbAvailable * Colors.BLUES_DARKEST) / (a1 - a0);
if (nbNeeded <= nbAvailable / 2)
index += INDEX_COLOR_FADEDSTARTS;
}
if (imageBuffer[i] != index) {
imageBuffer[i] = index;
if (bImageBufferValid) {
bImageChanged = true;
if (imageBuffer[i] >= INDEX_COLOR_FADEDSTARTS)
gcImage.setForeground(Colors.faded[index - INDEX_COLOR_FADEDSTARTS]);
else
gcImage.setForeground(Colors.blues[index]);
gcImage.drawLine(i + x0, y0, i + x0, y1);
}
}
}
if (!bImageBufferValid) {
if(established) {
int iLastIndex = imageBuffer[0];
int iWidth = 1;
for (int i = 1; i < drawWidth; i++) {
if (iLastIndex == imageBuffer[i]) {
iWidth++;
} else {
if (iLastIndex >= INDEX_COLOR_FADEDSTARTS) {
gcImage.setBackground(Colors.faded[iLastIndex - INDEX_COLOR_FADEDSTARTS]);
} else
gcImage.setBackground(Colors.blues[iLastIndex]);
gcImage.fillRectangle(i - iWidth + x0, y0, iWidth, y1 - y0 + 1);
iWidth = 1;
iLastIndex = imageBuffer[i];
}
}
if (iLastIndex >= INDEX_COLOR_FADEDSTARTS)
gcImage.setBackground(Colors.faded[iLastIndex - INDEX_COLOR_FADEDSTARTS]);
else
gcImage.setBackground(Colors.blues[iLastIndex]);
gcImage.fillRectangle(x1 - iWidth + 1, y0, iWidth, y1 - y0 + 1);
bImageChanged = true;
}
}
int limit = (drawWidth * nbComplete) / nbPieces;
if (limit < drawWidth) {
gcImage.setBackground(Colors.blues[Colors.BLUES_LIGHTEST]);
gcImage.fillRectangle(limit+x0, borderHorizontalSize,
x1-limit, completionHeight);
}
gcImage.setBackground(Colors.colorProgressBar);
gcImage.fillRectangle(x0, borderHorizontalSize,
limit, completionHeight);
} catch (Exception e) {
System.out.println("Error Drawing PiecesItem");
Debug.printStackTrace( e );
} } else {
gcImage.setForeground(Colors.grey);
gcImage.setBackground(Colors.grey);
gcImage.fillRectangle(x0,y0,newWidth,y1);
}
gcImage.dispose();
Image oldImage = null;
Graphic graphic = cell.getGraphic();
if (graphic instanceof UISWTGraphic) {
oldImage = ((UISWTGraphic) graphic).getImage();
}
if (bImageChanged || image != oldImage || !cell.isValid()) {
if (cell instanceof TableCellSWT) {
((TableCellSWT) cell).setGraphic(image);
} else {
cell.setGraphic(new UISWTGraphicImpl(image));
}
if (bImageChanged || image != oldImage) {
cell.invalidate();
}
infoObj.setData("PiecesImage", image);
infoObj.setData("PiecesImageBuffer", imageBuffer);
}
}