/**
* Interface method to remove a drawing from the group
*
* @param d the drawing to remove
*/
public void remove(DrawingGroupObject d)
{
// Unless there are real images or some such, it is possible that
// a BStoreContainer will not be present. In that case simply return
if (getBStoreContainer() == null)
{
return;
}
if (origin == Origin.READ)
{
origin = Origin.READ_WRITE;
numBlips = getBStoreContainer().getNumBlips();
Dgg dgg = (Dgg)escherData.getChildren()[0];
drawingGroupId = dgg.getCluster(1).drawingGroupId - numBlips - 1;
}
// Get the blip
EscherRecord[] children = getBStoreContainer().getChildren();
BlipStoreEntry bse = (BlipStoreEntry)children[d.getBlipId() - 1];
bse.dereference();
if (bse.getReferenceCount() == 0)
{
// Remove the blip
getBStoreContainer().remove(bse);
// Adjust blipId on the other blips
foreach (DrawingGroupObject drawing in drawings)
{
if (drawing.getBlipId() > d.getBlipId())
{
drawing.setObjectId(drawing.getObjectId(),
drawing.getBlipId() - 1,
drawing.getShapeId());
}
}
numBlips--;
}
}
/**
* Writes the drawing group to the output file
*
* @param outputFile the file to write to
* @exception IOException
*/
public void write(File outputFile)
{
if (origin == Origin.WRITE)
{
DggContainer dggContainer = new DggContainer();
Dgg dgg = new Dgg(numBlips + numCharts + 1, numBlips);
dgg.addCluster(1, 0);
dgg.addCluster(numBlips + 1, 0);
dggContainer.add(dgg);
int drawingsAdded = 0;
BStoreContainer bstoreCont = new BStoreContainer();
// Create a blip entry for each drawing
foreach (object o in drawings)
{
if (o is Drawing)
{
Drawing d = (Drawing)o;
BlipStoreEntry bse = new BlipStoreEntry(d);
bstoreCont.add(bse);
drawingsAdded++;
}
}
if (drawingsAdded > 0)
{
bstoreCont.setNumBlips(drawingsAdded);
dggContainer.add(bstoreCont);
}
Opt opt = new Opt();
dggContainer.add(opt);
SplitMenuColors splitMenuColors = new SplitMenuColors();
dggContainer.add(splitMenuColors);
drawingData = dggContainer.getData();
}
else if (origin == Origin.READ_WRITE)
{
DggContainer dggContainer = new DggContainer();
Dgg dgg = new Dgg(numBlips + numCharts + 1, numBlips);
dgg.addCluster(1, 0);
dgg.addCluster(drawingGroupId + numBlips + 1, 0);
dggContainer.add(dgg);
BStoreContainer bstoreCont = new BStoreContainer();
bstoreCont.setNumBlips(numBlips);
// Create a blip entry for each drawing that was read in
BStoreContainer readBStoreContainer = getBStoreContainer();
if (readBStoreContainer != null)
{
EscherRecord[] children = readBStoreContainer.getChildren();
for (int i = 0; i < children.Length; i++)
{
BlipStoreEntry bse = (BlipStoreEntry)children[i];
bstoreCont.add(bse);
}
}
// Create a blip entry for each drawing that has been added
foreach (DrawingGroupObject dgo in drawings)
{
if (dgo is Drawing)
{
Drawing d = (Drawing)dgo;
if (d.getOrigin() == Origin.WRITE)
{
BlipStoreEntry bse = new BlipStoreEntry(d);
bstoreCont.add(bse);
}
}
}
dggContainer.add(bstoreCont);
Opt opt = new Opt();
opt.addProperty(191, false, false, 524296);
opt.addProperty(385, false, false, 134217737);
opt.addProperty(448, false, false, 134217792);
dggContainer.add(opt);
SplitMenuColors splitMenuColors = new SplitMenuColors();
dggContainer.add(splitMenuColors);
drawingData = dggContainer.getData();
}
MsoDrawingGroupRecord msodg = new MsoDrawingGroupRecord(drawingData);
outputFile.write(msodg);
}
/**
* Adds a drawing from the public, writable interface
*
* @param d the drawing to add
*/
public void add(DrawingGroupObject d)
{
if (origin == Origin.READ)
{
origin = Origin.READ_WRITE;
BStoreContainer bsc = getBStoreContainer(); // force initialization
Dgg dgg = (Dgg)escherData.getChildren()[0];
drawingGroupId = dgg.getCluster(1).drawingGroupId - numBlips - 1;
numBlips = bsc != null?bsc.getNumBlips() : 0;
if (bsc != null)
{
Assert.verify(numBlips == bsc.getNumBlips());
}
}
if (!(d is Drawing))
{
// Assign a new object id and add it to the list
// drawings.add(d);
maxobjectId++;
maxShapeId++;
d.setDrawingGroup(this);
d.setObjectId(maxobjectId, numBlips + 1, maxShapeId);
if (drawings.Count > maxobjectId)
{
//logger.warn("drawings length " + drawings.Count +
// " exceeds the max object id " + maxobjectId);
}
// numBlips++;
return;
}
Drawing drawing = (Drawing)d;
// See if this is referenced elsewhere
Drawing refImage = null;
if (imageFiles.ContainsKey(d.getImageFilePath()))
{
refImage = imageFiles[d.getImageFilePath()];
}
if (refImage == null)
{
// There are no other references to this drawing, so assign
// a new object id and put it on the hash map
maxobjectId++;
maxShapeId++;
drawings.Add(drawing);
drawing.setDrawingGroup(this);
drawing.setObjectId(maxobjectId, numBlips + 1, maxShapeId);
numBlips++;
imageFiles.Add(drawing.getImageFilePath(), drawing);
}
else
{
// This drawing is used elsewhere in the workbook. Increment the
// reference count on the drawing, and set the object id of the drawing
// passed in
refImage.setReferenceCount(refImage.getReferenceCount() + 1);
drawing.setDrawingGroup(this);
drawing.setObjectId(refImage.getObjectId(),
refImage.getBlipId(),
refImage.getShapeId());
}
}
/**
* Initialization
*/
private void initialize()
{
int curpos = getPos() + HEADER_LENGTH;
int endpos = System.Math.Min(getPos() + getLength(), getStreamLength());
EscherRecord newRecord = null;
while (curpos < endpos)
{
EscherRecordData erd = new EscherRecordData(getEscherStream(), curpos);
EscherRecordType type = erd.getType();
if (type == EscherRecordType.DGG)
{
newRecord = new Dgg(erd);
}
else if (type == EscherRecordType.DG)
{
newRecord = new Dg(erd);
}
else if (type == EscherRecordType.BSTORE_CONTAINER)
{
newRecord = new BStoreContainer(erd);
}
else if (type == EscherRecordType.SPGR_CONTAINER)
{
newRecord = new SpgrContainer(erd);
}
else if (type == EscherRecordType.SP_CONTAINER)
{
newRecord = new SpContainer(erd);
}
else if (type == EscherRecordType.SPGR)
{
newRecord = new Spgr(erd);
}
else if (type == EscherRecordType.SP)
{
newRecord = new Sp(erd);
}
else if (type == EscherRecordType.CLIENT_ANCHOR)
{
newRecord = new ClientAnchor(erd);
}
else if (type == EscherRecordType.CLIENT_DATA)
{
newRecord = new ClientData(erd);
}
else if (type == EscherRecordType.BSE)
{
newRecord = new BlipStoreEntry(erd);
}
else if (type == EscherRecordType.OPT)
{
newRecord = new Opt(erd);
}
else if (type == EscherRecordType.SPLIT_MENU_COLORS)
{
newRecord = new SplitMenuColors(erd);
}
else if (type == EscherRecordType.CLIENT_TEXT_BOX)
{
newRecord = new ClientTextBox(erd);
}
else
{
newRecord = new EscherAtom(erd);
}
children.Add(newRecord);
curpos += newRecord.getLength();
}
initialized = true;
}