public void writeImageToStream(OutputStream os, String fileName, BufferedImage img) {
// if we get here we need to save the image from the memory
try {
// try to write image using the format of the filename extension
int pos = fileName.lastIndexOf('.');
String ext = fileName.substring(pos + 1).toLowerCase(Locale.US);
if (ext.equals("jpg") || ext.equals("jpeg")) ext = "JPG";
else ext = "PNG";
// circumvent security issues by disabling disk-based caching
if (app.isApplet()) {
javax.imageio.ImageIO.setUseCache(false);
}
ImageIO.write(img, ext, os);
// restore caching to prevent side-effects
if (app.isApplet()) {
javax.imageio.ImageIO.setUseCache(true);
}
} catch (Exception e) {
Application.debug(e.getMessage());
try {
// if this did not work save image as png
ImageIO.write(img, "png", os);
} catch (Exception ex) {
Application.debug(ex.getMessage());
return;
}
}
}
// G.Sturr 2010-7-5
// added 'allowErrorDialog' flag to handle the case of unquoted text
// entries in the spreadsheet
public GeoElement[] processAlgebraCommandNoExceptionHandling(
String cmd, boolean storeUndo, boolean allowErrorDialog, boolean throwMyError)
throws Exception {
ValidExpression ve;
try {
ve = parser.parseGeoGebraExpression(cmd);
} catch (ParseException e) {
// e.printStackTrace();
if (allowErrorDialog) {
app.showError(app.getError("InvalidInput") + ":\n" + cmd);
return null;
}
throw new MyException(app.getError("InvalidInput") + ":\n" + cmd, MyException.INVALID_INPUT);
} catch (MyError e) {
// e.printStackTrace();
if (allowErrorDialog) {
app.showError(e.getLocalizedMessage());
return null;
}
throw new Exception(e.getLocalizedMessage());
} catch (Error e) {
// e.printStackTrace();
if (allowErrorDialog) {
app.showError(app.getError("InvalidInput") + ":\n" + cmd);
return null;
}
throw new Exception(app.getError("InvalidInput") + ":\n" + cmd);
}
// process ValidExpression (built by parser)
GeoElement[] geoElements = null;
try {
geoElements = processValidExpression(ve);
if (storeUndo && geoElements != null) app.storeUndoInfo();
} catch (MyError e) {
e.printStackTrace();
// throw new Exception(e.getLocalizedMessage());
// show error with nice "Show Online Help" box
if (allowErrorDialog) { // G.Sturr 2010-7-5
app.showError(e);
e.printStackTrace();
} else if (throwMyError) throw new MyError(app, e.getLocalizedMessage(), e.getcommandName());
return null;
} catch (CircularDefinitionException e) {
Application.debug("CircularDefinition");
throw e;
} catch (Exception ex) {
Application.debug("Exception");
ex.printStackTrace();
throw new Exception(app.getError("Error") + ":\n" + ex.getLocalizedMessage());
}
return geoElements;
}
/*
* Take a list of commands and return all possible syntaxes
* for these commands
*/
private List<String> getSyntaxes(List<String> commands) {
if (commands == null) {
return null;
}
ArrayList<String> syntaxes = new ArrayList<String>();
for (String cmd : commands) {
String cmdInt = app.getInternalCommand(cmd);
String syntaxString;
if (isCASInput) {
syntaxString = app.getCommandSyntaxCAS(cmdInt);
} else {
syntaxString = app.getCommandSyntax(cmdInt);
}
if (syntaxString.endsWith(isCASInput ? app.syntaxCAS : app.syntaxStr)) {
// command not found, check for macros
Macro macro = isCASInput ? null : app.getKernel().getMacro(cmd);
if (macro != null) {
syntaxes.add(macro.toString());
} else {
// syntaxes.add(cmdInt + "[]");
Application.debug("Can't find syntax for: " + cmd);
}
continue;
}
for (String syntax : syntaxString.split("\\n")) {
syntaxes.add(syntax);
}
}
return syntaxes;
}
private void updateListItems(double from, double to, double step) {
if (isEmpty) return;
double currentVal = from;
int i = 0;
while ((step > 0 && currentVal <= to + Kernel.MIN_PRECISION)
|| (step < 0 && currentVal >= to - Kernel.MIN_PRECISION)) {
GeoElement listElement = list.get(i);
// check we haven't run out of memory
if (app.freeMemoryIsCritical()) {
long mem = app.freeMemory();
list.clearCache();
kernel.initUndoInfo(); // clear all undo info
Application.debug("AlgoSequence aborted: free memory reached " + mem);
return;
}
// set local var value
updateLocalVar(currentVal);
// copy expression value to listElement
// if it's undefined, just copy the undefined property
if (expression.isDefined()) listElement.set(expression);
else listElement.setUndefined();
listElement.update();
currentVal += step;
if (kernel.isInteger(currentVal)) {
currentVal = Math.round(currentVal);
}
i++;
}
}
public boolean initialize() {
boolean success = true;
try {
sequencer = MidiSystem.getSequencer();
sequencer.addMetaEventListener(this);
if (synthesizer == null) {
if ((synthesizer = MidiSystem.getSynthesizer()) == null) {
Application.debug("getSynthesizer() failed!");
return false;
}
Soundbank sb = synthesizer.getDefaultSoundbank();
if (sb != null) {
instruments = synthesizer.getDefaultSoundbank().getInstruments();
synthesizer.loadInstrument(instruments[0]);
}
channels = synthesizer.getChannels();
}
} catch (MidiUnavailableException e) {
e.printStackTrace();
return false;
} catch (Exception e) {
e.printStackTrace();
return false;
}
return success;
}
/**
* Calls Pcopy.updateCascade() to compute Qcopy. For non-continous constructions caching of
* previous paramater positions is used.
*/
private void pcopyUpdateCascade() {
countUpdates++;
if (continuous) {
// CONTINOUS construction
// don't use caching for continuous constructions:
// the same position of Pcopy can have different results for Qcopy
Pcopy.updateCascade();
} else {
// NON-CONTINOUS construction
// check if the path parameter's resulting Qcopy is already in cache
double param = Pcopy.getPathParameter().t;
Point2D.Double cachedPoint = getCachedPoint(param);
if (cachedPoint == null) {
// measure time needed for update of construction
long startTime = System.currentTimeMillis();
// result not in cache: update Pcopy to compute Qcopy
Pcopy.updateCascade();
long updateTime = System.currentTimeMillis() - startTime;
// if it takes too much time to calculate a single step, we stop
if (updateTime > MAX_TIME_FOR_ONE_STEP) {
Application.debug("AlgoLocus: max time exceeded " + updateTime);
maxTimeExceeded = true;
}
// cache value of Qcopy
putCachedPoint(param, Qcopy);
} else {
// use cached result to set Qcopy
Qcopy.setCoords(cachedPoint.x, cachedPoint.y, 1.0);
useCache++;
}
}
// if (Qcopy.isDefined() && !Qcopy.isInfinite()) {
// if (!foundDefined)
// System.out.print(locus.label + " FIRST DEFINED param: " + Pcopy.getPathParameter().t);
// else
// System.out.print(locus.label + " param: " + Pcopy.getPathParameter().t);
// System.out.println(", Qcopy: " + Qcopy);
// } else {
// System.out.print(locus.label + " param: " + Pcopy.getPathParameter().t);
// System.out.println(", Qcopy: NOT DEFINED");
// }
// check found defined
if (!foundDefined && Qcopy.isDefined() && !Qcopy.isInfinite()) {
pathMover.init(Pcopy);
PstartPos.set((GeoElement) Pcopy);
QstartPos.set((GeoElement) Qcopy);
foundDefined = true;
// insert first point
insertPoint(Qcopy.inhomX, Qcopy.inhomY, false);
}
}
public void actionPerformed(ActionEvent e) {
Object source = e.getSource();
Application.debug(tfScript.getText());
if (source == btApply) {
Construction cons = app.getKernel().getConstruction();
button = textField ? app.getKernel().textfield(null, linkedGeo) : new GeoButton(cons);
button.setEuclidianVisible(true);
button.setAbsoluteScreenLoc(x, y);
button.setLabel(null);
button.setClickScript(tfScript.getText(), true);
// set caption text
String strCaption = tfCaption.getText().trim();
if (strCaption.length() > 0) {
button.setCaption(strCaption);
}
button.setEuclidianVisible(true);
button.setLabelVisible(true);
button.updateRepaint();
geoResult = button;
setVisible(false);
app.getKernel().storeUndoInfo();
} else if (source == btCancel) {
geoResult = null;
setVisible(false);
}
}
/**
* Parses given String str and tries to evaluate it to a GeoImplicitPoly object. Returns null if
* something went wrong.
*
* @param str
* @boolean showErrors if false, only stacktraces are printed
* @return implicit polygon or null
*/
public GeoElement evaluateToGeoElement(String str, boolean showErrors) {
boolean oldMacroMode = cons.isSuppressLabelsActive();
cons.setSuppressLabelCreation(true);
GeoElement geo = null;
try {
ValidExpression ve = parser.parseGeoGebraExpression(str);
GeoElement[] temp = processValidExpression(ve);
geo = temp[0];
} catch (CircularDefinitionException e) {
Application.debug("CircularDefinition");
app.showError("CircularDefinition");
} catch (Exception e) {
e.printStackTrace();
if (showErrors) app.showError("InvalidInput", str);
} catch (MyError e) {
e.printStackTrace();
if (showErrors) app.showError(e);
} catch (Error e) {
e.printStackTrace();
if (showErrors) app.showError("InvalidInput", str);
}
cons.setSuppressLabelCreation(oldMacroMode);
return geo;
}
/**
* Parses given String str and tries to evaluate it to a GeoFunction Returns null if something
* went wrong. Michael Borcherds 2008-04-04
*/
public GeoFunction evaluateToFunction(String str, boolean suppressErrors) {
boolean oldMacroMode = cons.isSuppressLabelsActive();
cons.setSuppressLabelCreation(true);
GeoFunction func = null;
try {
ValidExpression ve = parser.parseGeoGebraExpression(str);
GeoElement[] temp = processValidExpression(ve);
if (temp[0].isGeoFunctionable()) {
GeoFunctionable f = (GeoFunctionable) temp[0];
func = f.getGeoFunction();
} else if (!suppressErrors) app.showError("InvalidInput", str);
} catch (CircularDefinitionException e) {
Application.debug("CircularDefinition");
if (!suppressErrors) app.showError("CircularDefinition");
} catch (Exception e) {
e.printStackTrace();
if (!suppressErrors) app.showError("InvalidInput", str);
} catch (MyError e) {
e.printStackTrace();
if (!suppressErrors) app.showError(e);
} catch (Error e) {
e.printStackTrace();
if (!suppressErrors) app.showError("InvalidInput", str);
}
cons.setSuppressLabelCreation(oldMacroMode);
return func;
}
/**
* for AlgebraView changes in the tree selection and redefine dialog
*
* @return changed geo
*/
public GeoElement changeGeoElementNoExceptionHandling(
GeoElement geo, ValidExpression newValue, boolean redefineIndependent, boolean storeUndoInfo)
throws Exception {
String oldLabel, newLabel;
GeoElement[] result;
try {
oldLabel = geo.getLabel();
newLabel = newValue.getLabel();
if (newLabel == null) {
newLabel = oldLabel;
newValue.setLabel(newLabel);
}
// make sure that points stay points and vectors stay vectors
if (newValue instanceof ExpressionNode) {
ExpressionNode n = (ExpressionNode) newValue;
if (geo.isGeoPoint()) n.setForcePoint();
else if (geo.isGeoVector()) n.setForceVector();
else if (geo.isGeoFunction()) n.setForceFunction();
}
if (newLabel.equals(oldLabel)) {
// try to overwrite
result = processValidExpression(newValue, redefineIndependent);
if (result != null && storeUndoInfo) app.storeUndoInfo();
return result[0];
} else if (cons.isFreeLabel(newLabel)) {
newValue.setLabel(oldLabel);
// rename to oldLabel to enable overwriting
result = processValidExpression(newValue, redefineIndependent);
result[0].setLabel(newLabel); // now we rename
if (storeUndoInfo) app.storeUndoInfo();
return result[0];
} else {
String str[] = {"NameUsed", newLabel};
throw new MyError(app, str);
}
} catch (CircularDefinitionException e) {
Application.debug("CircularDefinition");
throw e;
} catch (Exception e) {
e.printStackTrace();
throw new Exception(app.getError("InvalidInput") + ":\n" + newValue);
} catch (MyError e) {
e.printStackTrace();
throw new Exception(e.getLocalizedMessage());
} catch (Error e) {
e.printStackTrace();
throw new Exception(app.getError("InvalidInput") + ":\n" + newValue);
}
}
public synchronized void handleOpenApplication(com.apple.eawt.ApplicationEvent ev) {
Application.debug("handleOpenApplication event, filename: " + ev.getFilename());
// open file
String fileName = ev.getFilename();
if (fileName != null) {
handleOpenFile(ev);
} else {
GeoGebraFrame wnd = getGGBInstance();
if (!wnd.isShowing()) wnd.setVisible(true);
}
}
private void createNewList(double from, double to, double step) {
// clear list if defined
int i = 0;
int oldListSize = list.size();
list.clear();
if (!isEmpty) {
// needed capacity
int n = (int) Math.ceil((to - from) / step) + 1;
list.ensureCapacity(n);
// create the sequence
double currentVal = from;
while ((step > 0 && currentVal <= to + Kernel.MIN_PRECISION)
|| (step < 0 && currentVal >= to - Kernel.MIN_PRECISION)) {
// check we haven't run out of memory
if (app.freeMemoryIsCritical()) {
long mem = app.freeMemory();
list.clearCache();
kernel.initUndoInfo(); // clear all undo info
Application.debug("AlgoSequence aborted: free memory reached " + mem);
return;
}
// set local var value
updateLocalVar(currentVal);
addElement(i);
currentVal += step;
if (kernel.isInteger(currentVal)) {
currentVal = Math.round(currentVal);
}
i++;
}
}
// if the old list was longer than the new one
// we need to set some cached elements to undefined
for (int k = oldListSize - 1; k >= i; k--) {
GeoElement oldElement = list.getCached(k);
oldElement.setUndefined();
oldElement.update();
}
// remember current values
last_from = from;
last_to = to;
last_step = step;
}
public void debug(GeoElement geo) {
System.out.println("=====================================");
System.out.println(geo.toString());
Field[] fields = TraceSettings.class.getDeclaredFields();
for (Field field : fields) {
try {
System.out.println(field.getName() + ": " + field.get(this).toString());
} catch (Exception e) {
Application.debug(e.getMessage());
}
}
System.out.println("=====================================");
}
/**
* Gets active instance of GeoGebra window. This method waits until an active instance was created
* by GeoGebra.main()
*
* @return
*/
private synchronized GeoGebraFrame getGGBInstance() {
GeoGebraFrame wnd = null;
while (wnd == null) {
try {
Thread.sleep(100);
wnd = GeoGebraFrame.getActiveInstance();
} catch (Exception e) {
Application.debug("MacApplicationListener.getGGBInstance(): " + e.getMessage());
wnd = null;
}
}
return wnd;
}
@SuppressWarnings("deprecation")
protected final void compute() {
if (input[0].isDefined() && input[1].isDefined() && input[2].isDefined()) {
int param = (int) Math.round(a.getDouble());
double val = b.getDouble();
try {
PoissonDistribution dist = getPoissonDistribution(param);
if (isCumulative.getBoolean()) num.setValue(dist.cumulativeProbability(val)); // P(X <= val)
else num.setValue(dist.probability(val)); // P(X = val)
} catch (Exception e) {
Application.debug(e.getMessage());
num.setUndefined();
}
} else num.setUndefined();
}
private void initType(ExpressionValue ev) {
if (ev.isBooleanValue()) {
isBooleanFunction = true;
} else if (ev.isNumberValue()) {
isBooleanFunction = false;
} else if (ev instanceof FunctionNVar) {
expression = ((FunctionNVar) ev).getExpression();
fVars = ((FunctionNVar) ev).getFunctionVariables();
} else {
Application.debug(
"InvalidFunction:"
+ expression.toString()
+ " "
+ ev.toString()
+ ev.getClass().getName());
throw new MyError(kernel.getApplication(), "InvalidFunction");
}
}
/**
* Parses given String str and tries to evaluate it to a GeoPoint. Returns null if something went
* wrong.
*/
public GeoPointND evaluateToPoint(String str, boolean showErrors) {
boolean oldMacroMode = cons.isSuppressLabelsActive();
cons.setSuppressLabelCreation(true);
GeoPointND p = null;
GeoElement[] temp = null;
;
try {
ValidExpression ve = parser.parseGeoGebraExpression(str);
if (ve instanceof ExpressionNode) {
ExpressionNode en = (ExpressionNode) ve;
en.setForcePoint();
}
temp = processValidExpression(ve);
p = (GeoPointND) temp[0];
} catch (CircularDefinitionException e) {
if (showErrors) {
Application.debug("CircularDefinition");
app.showError("CircularDefinition");
}
} catch (Exception e) {
if (showErrors) {
e.printStackTrace();
app.showError("InvalidInput", str);
}
} catch (MyError e) {
if (showErrors) {
e.printStackTrace();
app.showError(e);
}
} catch (Error e) {
if (showErrors) {
e.printStackTrace();
app.showError("InvalidInput", str);
}
}
cons.setSuppressLabelCreation(oldMacroMode);
return p;
}
/** Set all elements in locusConsElements to the current values of the main construction */
private void resetMacroConstruction() {
Iterator<ConstructionElement> it = locusConsOrigElements.iterator();
while (it.hasNext()) {
ConstructionElement ce = it.next();
if (ce.isGeoElement()) {
GeoElement geoOrig = (GeoElement) ce;
// do not copy functions, their expressions already
// include references to the correct other geos
if (!geoOrig.isGeoFunction()) {
GeoElement geoCopy = macroCons.lookupLabel(geoOrig.label);
if (geoCopy != null) {
try {
geoCopy.set(geoOrig);
geoCopy.update();
} catch (Exception e) {
Application.debug("AlgoLocus: error in resetMacroConstruction(): " + e.getMessage());
}
}
}
}
}
}
public synchronized void handleOpenFile(com.apple.eawt.ApplicationEvent ev) {
Application.debug("handleOpenFile event, filename: " + ev.getFilename());
// open file
String fileName = ev.getFilename();
if (fileName != null) {
File openFile = new File(fileName);
if (openFile.exists()) {
// get application instance
GeoGebraFrame ggb = getGGBInstance();
Application app = ggb.getApplication();
// open file
File[] files = {openFile};
boolean openInThisWindow = app.getCurrentFile() == null;
app.getGuiManager().doOpenFiles(files, openInThisWindow);
// make sure window is visible
if (openInThisWindow) ggb.setVisible(true);
}
}
}
private void addElement(int i) {
// only add new objects
GeoElement listElement = null;
int cacheListSize = list.getCacheSize();
if (i < cacheListSize) {
// we reuse existing list element from cache
listElement = list.getCached(i);
if (expIsFunctionOrCurve) {
// for functions we always need a new element
listElement.setParentAlgorithm(null);
listElement.doRemove();
// replace old list element by a new one
listElement = createNewListElement();
}
} else {
// create new list element
listElement = createNewListElement();
}
// copy current expression value to listElement
if (!expIsFunctionOrCurve) {
listElement.set(expression);
AlgoElement drawAlgo = expression.getDrawAlgorithm();
if (listElement instanceof GeoNumeric && drawAlgo instanceof AlgoDrawInformation) {
Application.debug(expression.getDrawAlgorithm().getClass().getName());
listElement.setDrawAlgorithm(((AlgoDrawInformation) drawAlgo).copy());
listElement.setEuclidianVisible(true);
}
}
// set the value of our element
listElement.update();
list.add(listElement);
}
/**
* Reads zipped file from zip input stream that includes the construction saved in xml format and
* maybe image files.
*/
private final void readZip(ZipInputStream zip, boolean isGGTfile) throws Exception {
// we have to read everything (i.e. all images)
// before we process the XML file, that's why we
// read the XML file into a buffer first
byte[] xmlFileBuffer = null;
byte[] macroXmlFileBuffer = null;
boolean xmlFound = false;
boolean macroXMLfound = false;
boolean ggbHandler = false;
// get all entries from the zip archive
while (true) {
ZipEntry entry = zip.getNextEntry();
if (entry == null) break;
String name = entry.getName();
if (name.equals(XML_FILE) || name.equals(I2G_PRIVATE + XML_FILE)) {
// load xml file into memory first
xmlFileBuffer = Util.loadIntoMemory(zip);
xmlFound = true;
ggbHandler = true;
// Added for Intergeo File Format (Yves Kreis) -->
handler = getGGBHandler();
} else if (!ggbHandler && name.equals(I2G_FILE)) {
// load i2g file into memory first
xmlFileBuffer = Util.loadIntoMemory(zip);
xmlFound = true;
handler = getI2GHandler();
// <-- Added for Intergeo File Format (Yves Kreis)
} else if (name.equals(XML_FILE_MACRO) || name.equals(I2G_PRIVATE + XML_FILE_MACRO)) {
// load macro xml file into memory first
macroXmlFileBuffer = Util.loadIntoMemory(zip);
macroXMLfound = true;
ggbHandler = true;
handler = getGGBHandler();
} else if (name.equals(JAVASCRIPT_FILE)) {
// load JavaScript
kernel.setLibraryJavaScript(Util.loadIntoString(zip));
} else {
// try to load image
try {
BufferedImage img = ImageIO.read(zip);
app.addExternalImage(name, img);
} catch (IOException e) {
Application.debug("readZipFromURL: image could not be loaded: " + name);
e.printStackTrace();
}
}
// get next entry
zip.closeEntry();
}
zip.close();
if (!isGGTfile) {
// ggb file: remove all macros from kernel before processing
kernel.removeAllMacros();
}
// process macros
if (macroXmlFileBuffer != null) {
// don't clear kernel for macro files
processXMLBuffer(macroXmlFileBuffer, !isGGTfile, isGGTfile);
}
// process construction
if (!isGGTfile && xmlFileBuffer != null) {
processXMLBuffer(xmlFileBuffer, !macroXMLfound, isGGTfile);
}
if (!(macroXMLfound || xmlFound)) throw new Exception("No XML data found in file.");
}
/**
* Evaluates a Maxima expression and returns the result as a string in Maxima syntax, e.g.
* evaluateMaxima("integrate (sin(x)^3, x);") returns "cos(x)^3/3-cos(x)".
*
* @return result string (null possible)
*/
public final synchronized String evaluateMaxima(String exp) {
try {
String result;
// MathPiper has problems with indices like a_3, b_{12}
exp = casParser.replaceIndices(exp);
// Maxima uses [] for lists
while (exp.indexOf('{') > -1) exp = exp.replace('{', '[');
while (exp.indexOf('}') > -1) exp = exp.replace('}', ']');
final boolean debug = true;
if (debug) Application.debug("Expression for Maxima: " + exp, 1);
String res = executeRaw(exp);
while (res.indexOf('\n') > -1) res = res.replace('\n', ' ');
String results[] = res.split("\\(%[oi]\\d+\\)\\s*");
result = results[results.length - 1];
// if last line is empty, look for next non-empty previous line
if (result.trim().length() == 0 && results.length > 1) {
int i = results.length - 2;
while (results[i].trim().length() == 0 && i > 0) i--;
result = results[i];
}
// remove (%o1) at start
// result = result.replaceFirst("\\(%o\\d+\\)\\s*", "").trim();
if (result.indexOf("%c") > -1) {
result = result.replaceAll("%c", "const");
Application.debug("WARNING: replacing %c by const", 1);
}
if (result.indexOf("%e") > -1) {
result = result.replaceAll("%e", "e");
Application.debug("WARNING: replacing %e by e", 1);
}
if (result.indexOf(" =") > -1) { // y = not :=
result = result.replaceAll(" =", "==");
Application.debug("WARNING: replacing = by ==", 1);
}
if (debug) {
for (int i = 0; i < results.length; i++)
System.err.println("Result " + i + ": " + results[i]);
System.out.println("result: " + result);
}
// undo special character handling
result = casParser.insertSpecialChars(result);
// replace eg [x=0,x=1] with {x=0,x=1}
while (result.indexOf('[') > -1) result = result.replace('[', '{');
while (result.indexOf(']') > -1) result = result.replace(']', '}');
// if the result consists of a list containing only 1 other list, flatten it
result = result.trim();
int cnt = 0;
for (int i = 0; i < result.length(); ++i) if (result.charAt(i) == '{') ++cnt;
if (cnt == 2) {
if (result.startsWith("{{") && result.endsWith("}}"))
result = result.substring(1, result.length() - 1);
else
throw new UnsupportedOperationException(
"An unexpected error occurred while parsing Maxima's output");
}
return result;
} catch (MaximaTimeoutException e) {
Application.debug("Timeout from Maxima, resetting");
ggbMaxima = null;
return "?";
}
}
// evaluate the current value of the arithmetic tree
protected final void compute() {
// get resulting list of ExpressionNodes
ExpressionValue evlist = root.evaluate();
MyList myList = (evlist instanceof MyList) ? (MyList) evlist : ((GeoList) evlist).getMyList();
int evalListSize = myList.size();
int cachedListSize = list.getCacheSize();
list.clear();
for (int i = 0; i < evalListSize; i++) {
ExpressionValue element = myList.getListElement(i).evaluate();
GeoElement geo = null;
// number result
if (element.isNumberValue()) {
double val = ((NumberValue) element).getDouble();
// try to use cached element of same type
if (i < cachedListSize) {
GeoElement cachedGeo = list.getCached(i);
// the cached element is a number: set value
if (cachedGeo.isGeoNumeric()) {
((GeoNumeric) cachedGeo).setValue(val);
geo = cachedGeo;
}
}
// no cached number: create new one
if (geo == null) {
geo = new GeoNumeric(cons, val);
}
// add number to list
list.add(geo);
}
// point
else if (element.isVectorValue()) {
GeoVec2D vec = ((VectorValue) element).getVector();
// try to use cached element of same type
if (i < cachedListSize) {
GeoElement cachedGeo = list.getCached(i);
// the cached element is a point: set value
if (cachedGeo.isGeoPoint()) {
((GeoPoint) cachedGeo).setCoords(vec);
geo = cachedGeo;
}
}
// no cached point: create new one
if (geo == null) {
GeoPoint point = new GeoPoint(cons);
point.setCoords(vec);
geo = point;
}
// add point to list
list.add(geo);
}
// needed for matrix multiplication
// eg {{1,3,5},{2,4,6}}*{{11,14},{12,15},{13,a}}
else if (element instanceof MyList) {
MyList myList2 = (MyList) element;
GeoList list2 = new GeoList(cons);
list2.clear();
/* removed Michael Borcherds 20080602
* bug: 9PointCubic.ggb (matrix multiplication)
// try to use cached element of type GeoList
GeoList list2 = null;
if (i < cachedListSize) {
GeoElement cachedGeo = list.getCached(i);
// the cached element is a number: set value
if (cachedGeo.isGeoList()) {
list2 = (GeoList) cachedGeo;
}
}
if (list2 == null) {
list2 = new GeoList(cons);
} */
for (int j = 0; j < myList2.size(); j++) {
ExpressionValue en = myList2.getListElement(j);
ExpressionValue ev = en.evaluate();
if (ev instanceof MyDouble) {
GeoNumeric geo2 = new GeoNumeric(cons);
geo2.setValue(((NumberValue) ev).getDouble());
list2.add(geo2);
}
}
list.add(list2);
} else if (element instanceof MyStringBuffer) {
MyStringBuffer str = (MyStringBuffer) element;
// try to use cached element of same type
if (i < cachedListSize) {
GeoElement cachedGeo = list.getCached(i);
// the cached element is a point: set value
if (cachedGeo.isGeoText()) {
((GeoText) cachedGeo).setTextString(str.toValueString());
geo = cachedGeo;
}
}
// no cached point: create new one
if (geo == null) {
GeoText text = new GeoText(cons);
text.setTextString(str.toValueString());
geo = text;
}
// add point to list
list.add(geo);
} else if (element instanceof MyBoolean) {
MyBoolean bool = (MyBoolean) element;
// try to use cached element of same type
if (i < cachedListSize) {
GeoElement cachedGeo = list.getCached(i);
// the cached element is a point: set value
if (cachedGeo.isGeoBoolean()) {
((GeoBoolean) cachedGeo).setValue(bool.getBoolean());
geo = cachedGeo;
}
}
// no cached point: create new one
if (geo == null) {
GeoBoolean geoBool = new GeoBoolean(cons);
geoBool.setValue(bool.getBoolean());
geo = geoBool;
}
// add point to list
list.add(geo);
} else if (element instanceof GeoFunction) {
GeoFunction fun = (GeoFunction) element;
if (i < cachedListSize) {
GeoElement cachedGeo = list.getCached(i);
// the cached element is a point: set value
if (cachedGeo.isGeoFunction()) {
((GeoFunction) cachedGeo).set(fun);
geo = cachedGeo;
}
}
// no cached point: create new one
if (geo == null) {
GeoFunction geoFun = new GeoFunction(cons);
geoFun.set(fun);
geo = geoFun;
}
list.add(geo);
} else {
Application.debug("unsupported list addition: " + element.getClass() + "");
}
}
}
/**
* compare this to another Drawable3D with picking
*
* @param d the other Drawable3D
* @param checkPickOrder say if the comparison has to look to pick order
* @return 1 if this is in front, 0 if equality, -1 either
*/
public int comparePickingTo(Drawable3D d, boolean checkPickOrder) {
// check if one is transparent and the other not
if ((!this.isTransparent()) && (d.isTransparent())) return -1;
if ((this.isTransparent()) && (!d.isTransparent())) return 1;
// check if the two objects are "mixed"
if ((this.zPickMin - d.zPickMin) * (this.zPickMax - d.zPickMax) < EPSILON_Z) {
if (DEBUG) {
DecimalFormat df = new DecimalFormat("0.000000000");
Application.debug(
"mixed :\n"
+ "zMin= "
+ df.format(this.zPickMin)
+ " | zMax= "
+ df.format(this.zPickMax)
+ " ("
+ this.getGeoElement().getLabel()
+ ")\n"
+ "zMin= "
+ df.format(d.zPickMin)
+ " | zMax= "
+ df.format(d.zPickMax)
+ " ("
+ d.getGeoElement().getLabel()
+ ")\n");
}
if (checkPickOrder) {
if (this.getPickOrder() < d.getPickOrder()) return -1;
if (this.getPickOrder() > d.getPickOrder()) return 1;
}
// if both are points, check if one is on a path and the other not
if (this.getGeoElement().isGeoPoint() && d.getGeoElement().isGeoPoint()) {
if ((((GeoPointND) this.getGeoElement()).hasPath())
&& (!((GeoPointND) d.getGeoElement()).hasPath())) return -1;
if ((!((GeoPointND) this.getGeoElement()).hasPath())
&& (((GeoPointND) d.getGeoElement()).hasPath())) return 1;
}
// smaller object is more likely to be picked
// Note: all objects that are not yet have defined a measure have a default measure = 0
// so that they are not affected by this comparison.
if (Kernel.isGreater(d.getGeoElement().getMeasure(), this.getGeoElement().getMeasure()))
return -1;
if (Kernel.isGreater(this.getGeoElement().getMeasure(), d.getGeoElement().getMeasure()))
return 1;
// check if one is the child of the other
if (this.getGeoElement().isChildOf(d.getGeoElement())) return -1;
if (d.getGeoElement().isChildOf(d.getGeoElement())) return 1;
}
// finally check if one is before the other
if (this.zPickMin < d.zPickMin) return -1;
if (this.zPickMin > d.zPickMin) return 1;
// says that the two objects are equal for the comparator
if (DEBUG) {
DecimalFormat df = new DecimalFormat("0.000000000");
Application.debug(
"equality :\n"
+ "zMin= "
+ df.format(this.zPickMin)
+ " | zMax= "
+ df.format(this.zPickMax)
+ " ("
+ this.getGeoElement().getLabel()
+ ")\n"
+ "zMin= "
+ df.format(d.zPickMin)
+ " | zMax= "
+ df.format(d.zPickMax)
+ " ("
+ d.getGeoElement().getLabel()
+ ")\n");
}
return 0;
}
public GeoElement[] processExpressionNode(ExpressionNode n) throws MyError {
// command is leaf: process command
if (n.isLeaf()) {
ExpressionValue leaf = n.getLeft();
if (leaf instanceof Command) {
Command c = (Command) leaf;
c.setLabels(n.getLabels());
return cmdDispatcher.processCommand(c, true);
} else if (leaf instanceof Equation) {
Equation eqn = (Equation) leaf;
eqn.setLabels(n.getLabels());
return processEquation(eqn);
} else if (leaf instanceof Function) {
Function fun = (Function) leaf;
fun.setLabels(n.getLabels());
return processFunction(n, fun);
} else if (leaf instanceof FunctionNVar) {
FunctionNVar fun = (FunctionNVar) leaf;
fun.setLabels(n.getLabels());
return processFunctionNVar(n, fun);
}
}
// ELSE: resolve variables and evaluate expressionnode
n.resolveVariables();
eval = n.evaluate();
boolean dollarLabelFound = false;
ExpressionNode myNode = n;
if (myNode.isLeaf()) myNode = myNode.getLeftTree();
// leaf (no new label specified): just return the existing GeoElement
if (eval.isGeoElement()
&& n.getLabel() == null
&& !(n.operation.equals(Operation.ELEMENT_OF))) {
// take care of spreadsheet $ names: don't loose the wrapper ExpressionNode here
// check if we have a Variable
switch (myNode.getOperation()) {
case $VAR_COL:
case $VAR_ROW:
case $VAR_ROW_COL:
// don't do anything here: we need to keep the wrapper ExpressionNode
// and must not return the GeoElement here
dollarLabelFound = true;
break;
default:
// return the GeoElement
GeoElement[] ret = {(GeoElement) eval};
return ret;
}
}
if (eval.isBooleanValue()) return processBoolean(n, eval);
else if (eval.isNumberValue()) return processNumber(n, eval);
else if (eval.isVectorValue()) return processPointVector(n, eval);
else if (eval.isVector3DValue()) return processPointVector3D(n, eval);
else if (eval.isTextValue()) return processText(n, eval);
else if (eval instanceof MyList) {
return processList(n, (MyList) eval);
} else if (eval instanceof Function) {
return processFunction(n, (Function) eval);
} else if (eval instanceof FunctionNVar) {
return processFunctionNVar(n, (FunctionNVar) eval);
}
// we have to process list in case list=matrix1(1), but not when list=list2
else if (eval instanceof GeoList && myNode.hasOperations()) {
Application.debug("should work");
return processList(n, ((GeoList) eval).getMyList());
} else if (eval.isGeoElement()) {
// e.g. B1 = A1 where A1 is a GeoElement and B1 does not exist yet
// create a copy of A1
if (n.getLabel() != null || dollarLabelFound) {
return processGeoCopy(n.getLabel(), n);
}
}
// REMOVED due to issue 131: http://code.google.com/p/geogebra/issues/detail?id=131
// // expressions like 2 a (where a:x + y = 1)
// // A1=b doesn't work for these objects
// else if (eval instanceof GeoLine) {
// if (((GeoLine)eval).getParentAlgorithm() instanceof AlgoDependentLine) {
// GeoElement[] ret = {(GeoElement) eval };
// return ret;
// }
//
// }
// if we get here, nothing worked
Application.debug("Unhandled ExpressionNode: " + eval + ", " + eval.getClass());
return null;
}
protected void updateLabel() {
// draw numbers
GeoAxis3D axis = (GeoAxis3D) getGeoElement();
NumberFormat numberFormat = axis.getNumberFormat();
double distance = axis.getNumbersDistance();
// Application.debug("drawMinMax="+getDrawMin()+","+getDrawMax());
double[] minmax = getDrawMinMax();
int iMin = (int) (minmax[0] / distance);
int iMax = (int) (minmax[1] / distance);
int nb = iMax - iMin + 1;
// Application.debug("iMinMax="+iMin+","+iMax);
if (nb < 1) {
Application.debug("nb=" + nb);
// labels = null;
return;
}
// sets all already existing labels not visible
for (DrawLabel3D label : labels.values()) label.setIsVisible(false);
for (int i = iMin; i <= iMax; i++) {
double val = i * distance;
Coords origin = ((GeoCoordSys1D) getGeoElement()).getPoint(val);
// draw numbers
String strNum = getView3D().getKernel().formatPiE(val, numberFormat);
// check if the label already exists
DrawLabel3D label = labels.get(strNum);
if (label != null) {
// sets the label visible
label.setIsVisible(true);
label.update(
strNum,
10,
getGeoElement().getObjectColor(),
origin.copyVector(),
axis.getNumbersXOffset(),
axis.getNumbersYOffset());
// TODO optimize this
} else {
// creates new label
label = new DrawLabel3D(getView3D());
label.setAnchor(true);
label.update(
strNum,
10,
getGeoElement().getObjectColor(),
origin.copyVector(),
axis.getNumbersXOffset(),
axis.getNumbersYOffset());
labels.put(strNum, label);
}
}
// update end of axis label
label.update(
((GeoAxis3D) getGeoElement()).getAxisLabel(),
10,
getGeoElement().getObjectColor(),
((GeoCoordSys1D) getGeoElement()).getPoint(minmax[1]),
axis.labelOffsetX - 4,
axis.labelOffsetY - 6);
}
/**
* processes valid expression.
*
* @param ve
* @param redefineIndependent == true: independent objects are redefined too
* @throws MyError
* @throws Exception
* @return
*/
public GeoElement[] processValidExpression(ValidExpression ve, boolean redefineIndependent)
throws MyError, Exception {
// check for existing labels
String[] labels = ve.getLabels();
GeoElement replaceable = null;
if (labels != null && labels.length > 0) {
boolean firstTime = true;
for (int i = 0; i < labels.length; i++) {
GeoElement geo = kernel.lookupLabel(labels[i]);
if (geo != null) {
if (geo.isFixed()) {
String[] strs = {
"IllegalAssignment", "AssignmentToFixed", ":\n", geo.getLongDescription()
};
throw new MyError(app, strs);
} else {
// replace (overwrite or redefine) geo
if (firstTime) { // only one geo can be replaced
replaceable = geo;
firstTime = false;
}
}
}
}
}
GeoElement[] ret;
boolean oldMacroMode = cons.isSuppressLabelsActive();
if (replaceable != null) cons.setSuppressLabelCreation(true);
// we have to make sure that the macro mode is
// set back at the end
try {
ret = doProcessValidExpression(ve);
if (ret == null) { // eg (1,2,3) running in 2D
Application.debug("Unhandled ValidExpression : " + ve);
throw new MyError(app, app.getError("InvalidInput") + ":\n" + ve);
}
} finally {
cons.setSuppressLabelCreation(oldMacroMode);
}
// try to replace replaceable geo by ret[0]
if (replaceable != null && ret != null && ret.length > 0) {
// a changeable replaceable is not redefined:
// it gets the value of ret[0]
// (note: texts are always redefined)
if (!redefineIndependent && replaceable.isChangeable() && !(replaceable.isGeoText())) {
try {
replaceable.set(ret[0]);
replaceable.updateRepaint();
ret[0] = replaceable;
} catch (Exception e) {
String errStr =
app.getError("IllegalAssignment")
+ "\n"
+ replaceable.getLongDescription()
+ " = "
+ ret[0].getLongDescription();
throw new MyError(app, errStr);
}
}
// redefine
else {
try {
// SPECIAL CASE: set value
// new and old object are both independent and have same type:
// simply assign value and don't redefine
if (replaceable.isIndependent()
&& ret[0].isIndependent()
&& replaceable.getGeoClassType() == ret[0].getGeoClassType()) {
replaceable.set(ret[0]);
replaceable.updateRepaint();
ret[0] = replaceable;
}
// STANDARD CASE: REDFINED
else {
GeoElement newGeo = ret[0];
cons.replace(replaceable, newGeo);
// now all objects have changed
// get the new object with same label as our result
String newLabel = newGeo.isLabelSet() ? newGeo.getLabel() : replaceable.getLabel();
ret[0] = kernel.lookupLabel(newLabel, false);
}
} catch (CircularDefinitionException e) {
throw e;
} catch (Exception e) {
e.printStackTrace();
throw new MyError(app, "ReplaceFailed");
} catch (MyError e) {
e.printStackTrace();
throw new MyError(app, "ReplaceFailed");
}
}
}
return ret;
}
public synchronized void handleReOpenApplication(com.apple.eawt.ApplicationEvent arg0) {
Application.debug("handleReOpenApplication event, filename: " + arg0.getFilename());
}
public synchronized void handlePreferences(com.apple.eawt.ApplicationEvent arg0) {
Application.debug("handlePreferences event, filename: " + arg0.getFilename());
}
public synchronized void handlePrintFile(com.apple.eawt.ApplicationEvent event) {
Application.debug("handlePrintFile event, filename: " + event.getFilename());
handleOpenFile(event);
getGGBInstance().getApplication().getGuiManager().showPrintPreview();
}