public String translate(Long blockId) throws SocketNullException, SubroutineNotDeclaredException {
TranslatorBlockFactory translatorBlockFactory = new TranslatorBlockFactory();
Block block = workspace.getEnv().getBlock(blockId);
TranslatorBlock rootTranslatorBlock =
translatorBlockFactory.buildTranslatorBlock(
this, blockId, block.getGenusName(), "", "", block.getBlockLabel());
return rootTranslatorBlock.toCode();
}
public static BlockNode makeNodeWithChildren(Long blockID) {
if (isNullBlockInstance(blockID)) {
return null;
}
Block block = Block.getBlock(blockID);
String genus = block.getGenusName();
String parentGenus = block instanceof BlockStub ? ((BlockStub) block).getParentGenus() : null;
String label;
if (!block.labelMustBeUnique() || block instanceof BlockStub) {
label = block.getBlockLabel();
} else {
label = null;
}
BlockNode node = new BlockNode(genus, parentGenus, label);
for (BlockConnector socket : block.getSockets()) {
if (socket.hasBlock()) {
node.addChild(makeNodeWithStack(socket.getBlockID()));
}
}
return node;
}
public static RenderableBlock cloneBlock(Block myblock) {
String mygenusname = myblock.getGenusName();
String label = myblock.getBlockLabel();
final Workspace workspace = myblock.getWorkspace();
// sometimes the factory block will have an assigned label different
// from its genus label.
if (!myblock.getInitialLabel().equals(myblock.getBlockLabel())) {
// acquire prefix and suffix length from myblock label
int prefixLength = myblock.getLabelPrefix().length();
int suffixLength = myblock.getLabelSuffix().length();
// we need to set the block label without the prefix and suffix attached because those
// values are automatically concatenated to the string specified in setBlockLabel. I know its
// weird, but its the way block labels were designed.
if (prefixLength > 0
|| suffixLength > 0) // TODO we could do this outside of this method, even in constructor
{
label =
myblock
.getBlockLabel()
.substring(prefixLength, myblock.getBlockLabel().length() - suffixLength);
}
}
// check genus instance counter and if label unique - change label accordingly
// also check if label already has a value at the end, if so update counter to have the max
// value
// TODO ria need to make this smarter
// some issues to think about:
// - what if they throw out an instance, such as setup2? should the next time they take out
// a setup block, should it have setup2 on it? but wouldn't that be confusing?
// - when we load up a new project with some instances with numbered labels, how do we keep
// track of new instances relative to these old ones?
// - the old implementation just iterated through all the instances of a particular genus in the
// workspace and compared a possible label to the current labels of that genus. if there
// wasn't
// any current label that matched the possible label, it returned that label. do we want to
// do this?
// is there something more efficient?
String labelWithIndex = label; // labelWithIndex will have the instance value
int value;
// initialize value that will be appended to the end of the label
if (instanceCounter.containsKey(mygenusname)) {
value = instanceCounter.get(mygenusname).intValue();
} else {
value = 0;
}
// begin check for validation of label
// iterate until label is valid
while (!isLabelValid(myblock, labelWithIndex)) {
value++;
labelWithIndex = labelWithIndex + value;
}
// set valid label and save current instance number
instanceCounter.put(mygenusname, new Integer(value));
if (!labelWithIndex.equals(label)) // only set it if the label actually changed...
{
label = labelWithIndex;
}
Block block;
if (myblock instanceof BlockStub) {
Block parent = ((BlockStub) myblock).getParent();
block =
new BlockStub(
workspace,
parent.getBlockID(),
parent.getGenusName(),
parent.getBlockLabel(),
myblock.getGenusName());
} else {
block = new Block(workspace, myblock.getGenusName(), label);
}
// TODO - djwendel - create a copy of the RB properties too, using an RB copy constructor.
// Don't just use the genus.
// RenderableBlock renderable = new RenderableBlock(this.getParentWidget(), block.getBlockID());
RenderableBlock renderable = new RenderableBlock(workspace, null, block.getBlockID());
renderable.setZoomLevel(BlockUtilities.zoom);
renderable.redrawFromTop();
renderable.repaint();
return renderable;
}
/**
* Returns a new RenderableBlock instance with the matching genusName. New block will also have
* matching label is label is not-null. May return null.
*
* @param workspace The workspace to use
* @param genusName
* @param label
* @requires if block associated with genusName has a non editable or unique block label, then
* "label" MUST BE NULL.
* @return A new RenderableBlock with matching genusName and label (if label is not-null). If no
* matching blocks were found, return null.
*/
public static RenderableBlock getBlock(Workspace workspace, String genusName, String label) {
if (genusName == null) {
return null;
}
// find all blocks on the page and look for any match
for (Block block : workspace.getBlocks()) {
// make sure we're not dealing with null blocks
if (block == null || block.getBlockID() == null || block.getBlockID().equals(Block.NULL)) {
continue;
}
// find the block with matching genus and either a matching label or an editable label
if (block.getGenusName().equals(genusName)
&& (block.isLabelEditable() || block.getBlockLabel().equals(label) || block.isInfix())) {
// for block stubs, need to make sure that the label matches because stubs of the same kind
// (i.e. global var getters, agent var setters, etc.) have the same genusName
// but stubs of different parents do not share the same label
if (block instanceof BlockStub && !block.getBlockLabel().equals(label)) {
continue;
}
// create new renderable block instance
RenderableBlock renderable = BlockUtilities.cloneBlock(block);
// make sure renderable block is not a null instance of a block
if (renderable == null || renderable.getBlockID().equals(Block.NULL)) {
throw new RuntimeException(
"Invariant Violated: a valid non null blockID just"
+ "returned a null instance of RenderableBlock");
// please throw an exception here because it wouldn't make any sense
// if the Block is valid but it's associated RenderableBlock is not
}
// do not drop down default arguments
renderable.ignoreDefaultArguments();
// get corresponding block
Block newblock = Block.getBlock(renderable.getBlockID());
// make sure corresponding block is not a null instance of block
if (newblock == null || newblock.getBlockID().equals(Block.NULL)) {
throw new RuntimeException(
"Invariant Violated: a valid non null blockID just"
+ "returned a null instance of Block");
// please throw an exception here because it wouldn't make any sense
// if the Block is valid but it's associated RenderableBlock is not
}
// attempt to set the label text if possible as defined by the specs
// should not set the labels of block stubs because their labels are determined by their
// parent
if ((block.isLabelEditable() || block.getBlockLabel().equals(label))) {
if (label != null && !(block instanceof BlockStub)) {
if (newblock.isLabelEditable() && !newblock.labelMustBeUnique()) {
newblock.setBlockLabel(label);
}
}
}
// return renderable block
return renderable;
}
/////////////////////////////////////
// TODO: Add code here for nicknames//
/////////////////////////////////////
}
// TODO: the part below is a hack. If there are other types of blocks, we need to account for
// them
return null;
}