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/*
GeoGebra - Dynamic Mathematics for Everyone
http://www.geogebra.org
This file is part of GeoGebra.
This program is free software; you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by
the Free Software Foundation.
*/
package geogebra.main;
import geogebra.AppletImplementationInterface;
import geogebra.CommandLineArguments;
import geogebra.GeoGebra;
import geogebra.GeoGebraAppletPreloader;
import geogebra.euclidian.EuclidianView;
import geogebra.kernel.Kernel;
import geogebra.kernel.arithmetic.MyBoolean;
import geogebra.plugin.GgbAPI;
import java.awt.BorderLayout;
import java.awt.Color;
import java.awt.Component;
import java.awt.Container;
import java.awt.Cursor;
import java.awt.FlowLayout;
import java.awt.event.ActionEvent;
import java.awt.event.ActionListener;
import java.awt.event.ComponentEvent;
import java.awt.event.MouseAdapter;
import java.awt.event.MouseEvent;
import java.io.IOException;
import java.net.InetAddress;
import java.net.URL;
import java.net.UnknownHostException;
import java.security.AccessController;
import java.security.PrivilegedAction;
import java.util.Locale;
import javax.swing.BorderFactory;
import javax.swing.JApplet;
import javax.swing.JButton;
import javax.swing.JFrame;
import javax.swing.JLabel;
import javax.swing.JPanel;
import javax.swing.UIManager;
import netscape.javascript.JSObject;
/**
* GeoGebra applet implementation operating on a given JApplet object.
*/
public class AppletImplementation implements AppletImplementationInterface {
private static final long serialVersionUID = 1L;
public JApplet applet;
protected Application app;
protected Kernel kernel;
private JButton btOpen;
private DoubleClickListener dcListener;
private EuclidianView ev;
public boolean undoActive;
public boolean showToolBar, showToolBarHelp, showAlgebraInput, allowStyleBar;
public boolean enableRightClick = true;
public boolean useBrowserForJavaScript = true;
public boolean enableChooserPopups = true;
public boolean errorDialogsActive = true;
public boolean enableLabelDrags = true;
boolean enableShiftDragZoom = true;
boolean allowRescaling = true;
public boolean showMenuBar = false;
//public boolean showSpreadsheet = false;
//public boolean showAlgebraView = false;
boolean showResetIcon = false;
Color bgColor, borderColor;
private String fileStr, customToolBar;
private int maxIconSize;
public boolean showFrame = false; // disabled from 4.0.18.0
public boolean showOpenButton = false; // disabled from 4.0.18.0
private JFrame wnd;
private JSObject browserWindow;
public int width, height;
//public static URL codeBase=null;
//public static URL documentBase=null;
//private JavaScriptMethodHandler javaScriptMethodHandler;
//private boolean javascriptLoadFile=false, javascriptReset=false;
//private String javascriptLoadFileName="";
private GgbAPI ggbApi=null; //Ulven 29.05.08
public String ggbOnInitParam = null;
/** Creates a new instance of GeoGebraApplet */
public AppletImplementation(final JApplet applet) {
this.applet = applet;
// Allow rescaling eg ctrl+ ctrl- in Firefox
applet.addComponentListener(new java.awt.event.ComponentAdapter() {
public void componentResized(ComponentEvent e)
{
Component c = e.getComponent();
Application.debug("Applet resized to: "+c.getWidth()+", "+c.getHeight());
if (allowRescaling && app != null && !app.runningInFrame && app.onlyGraphicsViewShowing())
{
// use just horizontal scale factors
// under normal circumstances, these should be the same
double zoomFactor = (double)c.getWidth() / (double)width;// (double)c.getHeight() / (double)height ;
app.getEuclidianView().zoomAroundCenter(zoomFactor);
}
// these always need updating eg draw reset icon, play/pause icon
width = c.getWidth();
height = c.getHeight();
}
});
init();
}
public void dispose() {
app = null;
kernel = null;
browserWindow = null;
ev = null;
if (wnd != null) {
// see GeoGebraFrame.dispose()
wnd.dispose();
wnd = null;
}
}
/**
* Initializes the CAS, GUI components, and downloads jar files
* in a separate thread.
*/
public void initInBackground() {
Application.debug("initInBackground");
// start animation if wanted by ggb file
if (kernel.wantAnimationStarted())
kernel.getAnimatonManager().startAnimation();
// call JavaScript function ggbOnInit()
initJavaScript();
Object [] noArgs = { };
Object [] arg = { ggbOnInitParam };
Application.debug("calling ggbOnInit("+(((ggbOnInitParam == null) ? "" : ggbOnInitParam))+")");
app.getScriptManager().callJavaScript("ggbOnInit", (ggbOnInitParam == null) ? noArgs : arg );
// give applet time to repaint
Thread initingThread = new Thread() {
public void run() {
// wait a bit for applet to draw first time
// then start background initing of GUI elements
try {
Thread.sleep(1000);
} catch (InterruptedException e) {
e.printStackTrace();
}
// for applets with an "open GeoGebra" button or "double click to open window"
// init window in background
if (showOpenButton) {
initGeoGebraFrame();
}
else if (showFrame) {
wnd = app.getFrame();
}
// load all jar files in background
GeoGebraAppletPreloader.loadAllJarFiles(!app.useBrowserForJavaScript());
}
};
initingThread.start();
}
private void init() {
//codeBase=this.getCodeBase();
//documentBase=this.getDocumentBase();
//Application.debug("codeBase="+codeBase);
//Application.debug("documentBase="+documentBase);
// get parameters
// filename of construction
fileStr = applet.getParameter("filename");
if (fileStr != null &&
!( fileStr.startsWith("http") || fileStr.startsWith("file") ))
{
// add document base to file name
URL base = applet.getDocumentBase();
String documentBase = base.toString();
if (fileStr.startsWith("/")) {
fileStr = base.getProtocol() + "://" + base.getHost() + fileStr;
} else {
String path = documentBase.substring(0, documentBase.lastIndexOf('/')+1);
fileStr = path + fileStr;
}
} else {
// check if ggb file is encoded as base 64
String fileBase64 = applet.getParameter("ggbBase64");
if (fileBase64 != null)
fileStr = "base64://" + fileBase64;
}
Application.debug("loading "+fileStr);
// type = "button" or parameter is not available
String typeStr = applet.getParameter("type");
showOpenButton = typeStr != null && typeStr.equals("button");
// showToolBar = "true" or parameter is not available
showToolBar = "true".equals(applet.getParameter("showToolBar"));
// showToolBar = "true" or parameter is not available
showToolBarHelp = showToolBar && "true".equals(applet.getParameter("showToolBarHelp"));
// customToolBar = "0 1 2 | 3 4 5 || 7 8 12" to set the visible toolbar modes
customToolBar = applet.getParameter("customToolBar");
// showMenuBar = "true" or parameter is not available
showMenuBar = "true".equals(applet.getParameter("showMenuBar"));
// showSpreadsheet = "true" or parameter is not available
//showSpreadsheet = "true".equals(applet.getParameter("showSpreadsheet"));
// showAlgebraView = "true" or parameter is not available
//showAlgebraView = "true".equals(applet.getParameter("showAlgebraView"));
// showResetIcon = "true" or parameter is not available
showResetIcon = "true".equals(applet.getParameter("showResetIcon"));
// showAlgebraInput = "true" or parameter is not available
showAlgebraInput = "true".equals(applet.getParameter("showAlgebraInput"));
// default is true
useBrowserForJavaScript = !"false".equals(applet.getParameter("useBrowserForJS"));
// showFrame = "true" or "false" states whether it is possible
// to open the application frame by double clicking on the drawing pad
// default changed to false as we no longer write this parameter out
// deprecated from 4.0, disabled from 4.2
showFrame = "true".equals(applet.getParameter("framePossible"));
// show style bar of views, default is false
allowStyleBar = "true".equals(applet.getParameter("allowStyleBar"));
// rightClickActive, default is "true"
enableRightClick = !"false".equals(applet.getParameter("enableRightClick"));
// enableChooserPopups, default is "true"
enableChooserPopups = !"false".equals(applet.getParameter("enableChooserPopups"));
// errorDialogsActive, default is "true"
errorDialogsActive = !"false".equals(applet.getParameter("errorDialogsActive"));
// enableLabelDrags, default is "true"
enableLabelDrags = !"false".equals(applet.getParameter("enableLabelDrags"));
// paramter for JavaScript ggbOnInit() call
ggbOnInitParam = applet.getParameter("ggbOnInitParam");
// enableShiftDragZoom, default is "true"
enableShiftDragZoom = !"false".equals(applet.getParameter("enableShiftDragZoom"));
// allowRescaling, default is "false"
allowRescaling = "true".equals(applet.getParameter("allowRescaling"));
undoActive = (showToolBar || showMenuBar);
// set language manually by iso language string
String language = applet.getParameter("language");
String country = applet.getParameter("country");
Locale loc = null;
if (language != null) {
if (country != null)
loc = new Locale(language, country);
else
loc = new Locale(language);
applet.setLocale(loc);
}
// bgcolor = "#CCFFFF" specifies the background color to be used for
// the button panel
try {
bgColor = Color.decode(applet.getParameter("bgcolor"));
} catch (Exception e) {
bgColor = Color.white;
}
// borderColor = "#CCFFFF" specifies the border color to be used for
// the applet panel
try {
borderColor = Color.decode(applet.getParameter("borderColor"));
} catch (Exception e) {
borderColor = Color.gray;
}
// maximum icon size to be used in the toolbar
try {
maxIconSize = Integer.parseInt(applet.getParameter("maxIconSize"));
} catch (Exception e) {
maxIconSize = Application.DEFAULT_ICON_SIZE;
}
// build application and open file
/*
if (fileStr == null) {
app = new CustomApplication(null, this, undoActive);
} else {
String[] args = { fileStr };
app = new CustomApplication(args, this, undoActive);
}
*/
try {
if (Application.MAC_OS || Application.WINDOWS)
UIManager.setLookAndFeel(UIManager.getSystemLookAndFeelClassName());
else // Linux or others
UIManager.setLookAndFeel(UIManager.getCrossPlatformLookAndFeelClassName());
} catch (Exception e) {
Application.debug(e+"");
}
if (fileStr == null) {
app = buildApplication(null, undoActive);
} else {
String[] args = { fileStr };
app = buildApplication(new CommandLineArguments(args), undoActive);
}
// needed to make sure unicodeZero works
if (loc != null) app.setLanguage(loc);
kernel = app.getKernel();
/* Ulven 29.05.08 */
ggbApi=app.getGgbApi();
}
protected Application buildApplication(CommandLineArguments args, boolean undoActive)
{
return new Application(args, this, undoActive);
}
public Application getApplication() {
return app;
}
/**
* @return If the applet parameters indicate that the GUI is necessary.
*/
public boolean needsGui() {
return showOpenButton
|| showAlgebraInput
|| showToolBar
|| showMenuBar
|| enableRightClick
|| showFrame;
}
public void initGUI() {
JPanel myContenPane;
// show only button to open application window
if (showOpenButton) {
btOpen =
new JButton(
app.getPlain("Open")
+ " "
+ app.getPlain("ApplicationName"));
btOpen.addActionListener(new ButtonClickListener());
// prepare content pane
myContenPane = new JPanel();
myContenPane.setBackground(bgColor);
myContenPane.setLayout(new FlowLayout(FlowLayout.CENTER));
myContenPane.add(btOpen);
}
// show interactive drawing pad
else {
// TODO use Appication methods (F.S.)
// create applet panel
myContenPane = createGeoGebraAppletPanel();
// border around applet panel
myContenPane.setBorder(BorderFactory.createLineBorder(borderColor));
if (showFrame) {
// open frame on double click
dcListener = new DoubleClickListener();
ev.addMouseListener(dcListener);
}
}
// replace applet's content pane
Container cp = applet.getContentPane();
Application.debug("Initial size = "+cp.getWidth()+", "+cp.getHeight());
//Application.debug("EuclidianView size = "+app.getEuclidianView().getPreferredSize().getWidth()+", "+app.getEuclidianView().getPreferredSize().getHeight());
width = cp.getWidth();
height = cp.getHeight();
if (originalWidth < 0) setInitialScaling();
cp.setBackground(bgColor);
cp.removeAll();
cp.add(myContenPane);
// set move mode
app.setMoveMode();
}
private int originalWidth = -1, originalHeight = -1;
/*
* rescales if the width is not what's expected
* eg if browser is zoomed
*/
private void setInitialScaling() {
if (allowRescaling) {
if (!app.runningInFrame && app.onlyGraphicsViewShowing())
{
originalWidth = (int)ev.getPreferredSize().getWidth();
originalHeight = (int)ev.getPreferredSize().getHeight();
double zoomFactorX = (double)width / (double)originalWidth;
double zoomFactorY = (double)height / (double)originalHeight;
double zoomFactor = Math.min(zoomFactorX, zoomFactorY);
ev.zoomAroundCenter(zoomFactor);
} else {
originalWidth = width;
originalHeight = height;
}
}
}
protected JPanel createGeoGebraAppletPanel() {
JPanel appletPanel = new JPanel(new BorderLayout());
appletPanel.setBackground(bgColor);
app.setUndoActive(undoActive);
app.setShowMenuBar(showMenuBar);
//app.setShowSpreadsheetView(showSpreadsheet);
//app.setShowAlgebraView(showAlgebraView);
app.setShowAlgebraInput(showAlgebraInput, true);
app.setUseBrowserForJavaScript(useBrowserForJavaScript);
app.setShowToolBar(showToolBar, showToolBarHelp);
app.setRightClickEnabled(enableRightClick);
app.setChooserPopupsEnabled(enableChooserPopups);
app.setErrorDialogsActive(errorDialogsActive);
app.setLabelDragsEnabled(enableLabelDrags);
app.setShiftDragZoomEnabled(enableShiftDragZoom);
if (customToolBar != null && customToolBar.length() > 0 && showToolBar)
app.getGuiManager().setToolBarDefinition(customToolBar);
app.setShowResetIcon(showResetIcon);
app.setMaxIconSize(maxIconSize);
app.getSettings().getLayout().setAllowStyleBar(allowStyleBar);
appletPanel.add(app.buildApplicationPanel(), BorderLayout.CENTER);
ev = app.getEuclidianView();
ev.updateBackground();
return appletPanel;
}
private class DoubleClickListener extends MouseAdapter {
public void mouseClicked(MouseEvent e) {
if (e.getClickCount() == 2) {
showFrame();
}
}
}
private class ButtonClickListener implements ActionListener {
public void actionPerformed(ActionEvent e) {
showFrame();
}
}
private void showFrame() {
Thread worker = new Thread() {
public void run() {
app.runningInFrame = true;
applet.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
doShowFrame();
applet.setCursor(Cursor.getDefaultCursor());
}
};
worker.start();
}
private synchronized void doShowFrame() {
if (showOpenButton) {
btOpen.setEnabled(false);
if (wnd == null)
initGeoGebraFrame();
} else {
// clear applet
Container cp = applet.getContentPane();
cp.removeAll();
if (ev != null)
ev.removeMouseListener(dcListener);
JPanel p = new JPanel(new BorderLayout());
p.setBackground(Color.white);
JLabel label = new JLabel("GeoGebra " + app.getPlain("WindowOpened") + "...");
label.setFont(app.getPlainFont());
p.add(label, BorderLayout.CENTER);
cp.add(p);
// initialize the GeoGebra frame's UIG
initGeoGebraFrame();
applet.validate();
}
// show frame
wnd.setVisible(true);
}
private synchronized void initGeoGebraFrame() {
// build application panel
if (wnd == null) {
wnd = app.getFrame();
}
app.setFrame(wnd);
app.setShowMenuBar(true);
app.setShowAlgebraInput(true, false);
app.setUndoActive(true);
app.setShowToolBar(true, true);
app.setRightClickEnabled(true);
if (customToolBar != null && customToolBar.length() > 0)
app.getGuiManager().setToolBarDefinition(customToolBar);
// just update layout if the layout was already visible
// (which isn't the case in button-only mode), see ticket #217
if(app.useFullGui() && !showOpenButton)
app.getGuiManager().updateLayout();
app.updateContentPane();
app.resetFonts();
}
public void showApplet() {
Thread worker = new Thread() {
public void run() {
applet.setCursor(Cursor.getPredefinedCursor(Cursor.WAIT_CURSOR));
wnd.setVisible(false); // hide frame
if (showOpenButton) {
btOpen.setEnabled(true);
} else {
reinitGUI();
}
applet.setCursor(Cursor.getDefaultCursor());
}
};
worker.start();
}
private void reinitGUI() {
app.runningInFrame = false;
Container cp = applet.getContentPane();
cp.removeAll();
app.setApplet(this);
if(app.useFullGui())
app.getGuiManager().updateLayout();
initGUI();
app.resetFonts();
app.refreshViews();
applet.validate();
}
/* JAVA SCRIPT INTERFACE */
/* Rewritten by Ulven 29.05.08:
* Moved method contents to GgbAPI
* and put in redirections to GgbApi.
* (Oneliners left as they are, nothing to gain...)
*
*
*
*/
/**
* Returns current construction as a ggb file in form of a byte array.
* @return null if something went wrong
*/
public synchronized byte [] getGGBfile() {
return ggbApi.getGGBfile(); //Ulven 29.05.08
}
/**
* Returns current construction in XML format. May be used for saving.
*/
public synchronized String getXML() {
return ggbApi.getXML();
}
/**
* Returns current construction in XML format. May be used for saving.
*/
public synchronized String getBase64() {
return getBase64(false);
}
/**
* Returns current construction in XML format. May be used for saving.
*/
public synchronized String getBase64(boolean includeThumbnail) {
return ggbApi.getBase64(includeThumbnail);
}
/**
* Returns the GeoGebra XML string for the given GeoElement object,
* i.e. only the <element> tag is returned.
*/
public String getXML(String objName) {
return ggbApi.getXML(objName);
}
/**
* For a dependent GeoElement objName the XML string of
* the parent algorithm and all its output objects is returned.
* For a free GeoElement objName "" is returned.
*/
public String getAlgorithmXML(String objName) {
return ggbApi.getAlgorithmXML(objName);
}
/**
* Opens construction given in XML format. May be used for loading constructions.
*/
public synchronized void setXML(String xml) {
app.setXML(xml, true);
reinitGUI();
}
/**
* Opens construction given in Base64 format. May be used for loading constructions.
*/
public synchronized void setBase64(final String base64) {
// base64 might contain an image, calls ImageIO etc
AccessController.doPrivileged(new PrivilegedAction<Object>() {
public Object run() {
// perform the security-sensitive operation here
ggbApi.setBase64(base64);
return null;
}
});
}
/**
* Evaluates the given XML string and changes the current construction.
* Note: the construction is NOT cleared before evaluating the XML string.
*/
public synchronized void evalXML(String xmlString) {
StringBuilder sb = new StringBuilder();
sb.append("<?xml version=\"1.0\" encoding=\"utf-8\"?>\n");
sb.append("<geogebra format=\"" + GeoGebra.XML_FILE_FORMAT + "\">\n");
ev.getXML(sb,false);
sb.append("<construction>\n");
sb.append(xmlString);
sb.append("</construction>\n");
sb.append("</geogebra>\n");
app.setXML(sb.toString(), false);
}
/**
* Evaluates the given string as if it was entered into GeoGebra's
* input text field.
*/
public synchronized boolean evalCommand(final String cmdString) {
//waitForCAS();
// avoid security problems calling from JavaScript
MyBoolean ret = AccessController.doPrivileged(new PrivilegedAction<MyBoolean>() {
public MyBoolean run() {
// perform the security-sensitive operation here
// make sure translated command names are loaded
app.initTranslatedCommands();
return new MyBoolean(kernel, app.getGgbApi().evalCommand(cmdString));
}
});
//return success
return ret.getBoolean();
}
/**
* Evaluates the given string as if it was entered into GeoGebra CAS's
* input text field.
* @return evaluation result in GeoGebraCAS syntax
*/
public synchronized String evalGeoGebraCAS(String cmdString){
return evalGeoGebraCAS(cmdString, false);
}
/**
* Evaluates the given string as if it was entered into the GeoGebraCAS
* input text field.
* @param debugOutput states whether debugging information should be printed to the console
* @return evaluation result in GeoGebraCAS syntax
*/
public synchronized String evalGeoGebraCAS(final String cmdString, final boolean debugOutput) {
// avoid security problems calling from JavaScript
return (String)AccessController.doPrivileged(new PrivilegedAction<String>() {
public String run() {
return ggbApi.evalGeoGebraCAS(cmdString, debugOutput);
}
});
}//evalGeoGebraCAS(String)
/**
* Evaluates the given string using the MathPiper CAS.
* @deprecated since GeoGebra 4.0, use evalGeoGebraCAS() instead
*
public synchronized String evalMathPiper(String cmdString) {
//waitForCAS();
final String str = cmdString;
// avoid security problems calling from JavaScript
return (String)AccessController.doPrivileged(new PrivilegedAction() {
public Object run() {
// perform the security-sensitive operation here
return kernel.evaluateMathPiper(str);
}
});
}*/
/**
* Evaluates the given string using the Yacas CAS.
* @deprecated since GeoGebra 4.0, use evalGeoGebraCAS() instead
*
public synchronized String evalYacas(String cmdString) {
return evalMathPiper(cmdString);
}*/
/**
* prints a string to the Java Console
*/
public synchronized void debug(String string) {
Application.debug(string);
}
// /**
// * Waits until the GeoGebraCAS has been loaded in the background.
// * Note: the GeoGebraCAS is automatically inited in Application.initInBackground();
// */
// private synchronized void waitForCAS() {
// if (kernel.isGeoGebraCASready()) return;
//
// // TODO: remove
// System.out.println("waiting for CAS to be inited ...");
//
// while (!kernel.isGeoGebraCASready()) {
// try { Thread.sleep(50); } catch (Exception e) {}
// }
//
// // TODO: remove
// System.out.println(" CAS loaded!");
// }
/**
* Turns on the fly creation of points in graphics view on (true) or off (false).
* Note: this is useful if you don't want tools to have the side effect
* of creating points. For example, when this flag is set to false, the
* tool "line through two points" will not create points on the fly
* when you click on the background of the graphics view.
*/
public synchronized void setOnTheFlyPointCreationActive(boolean flag) {
app.setOnTheFlyPointCreationActive(flag);
}
public synchronized void setUndoPoint() {
app.getKernel().getConstruction().storeUndoInfo();
}
/**
* Turns showing of error dialogs on (true) or (off).
* Note: this is especially useful together with evalCommand().
*/
public synchronized void setErrorDialogsActive(boolean flag) {
app.setErrorDialogsActive(flag);
}
/**
* Resets the initial construction (given in filename parameter) of this applet.
*/
public synchronized void reset() {
if (fileStr == null) return;
if (fileStr.startsWith("base64://")) {
byte[] zipFile;
try {
zipFile = geogebra.util.Base64.decode(fileStr
.substring(9));
} catch (IOException e) {
e.printStackTrace();
return;
}
app.loadXML(zipFile);
} else
// avoid security problems calling from JavaScript
AccessController.doPrivileged(new PrivilegedAction<Object>() {
public Object run() {
// perform the security-sensitive operation here
app.setWaitCursor();
try {
URL ggbURL = new URL(fileStr);
app.loadXML(ggbURL, fileStr.toLowerCase(Locale.US).endsWith(Application.FILE_EXT_GEOGEBRA_TOOL));
reinitGUI();
applet.validate();
} catch (Exception e) {
e.printStackTrace();
}
app.setDefaultCursor();
return null;
}
});
if (allowRescaling) {
ev.setTemporarySize(originalHeight, originalWidth);
double zoomFactorX = (double)width / (double)originalWidth;
double zoomFactorY = (double)height / (double)originalHeight;
double zoomFactor = Math.min(zoomFactorX, zoomFactorY);
ev.zoomAroundCenter(zoomFactor);
ev.setTemporarySize(-1, -1);
}
}
/**
* Refreshs all views. Note: clears traces in
* geometry window.
*/
public synchronized void refreshViews() {
app.refreshViews();
}
/* returns IP address
*
*/
public synchronized String getIPAddress() {
return (String) AccessController.doPrivileged(new PrivilegedAction<Object>() {
public Object run() {
try {
InetAddress addr = InetAddress.getLocalHost();
// Get host name
return addr.getHostAddress();
} catch (UnknownHostException e) {
return "";
}
}
});
}
/* returns hostname
*
*/
public synchronized String getHostname() {
return AccessController.doPrivileged(new PrivilegedAction<String>() {
public String run() {
try {
InetAddress addr = InetAddress.getLocalHost();
// Get host name
return addr.getHostName();
} catch (UnknownHostException e) {
return "";
}
}
});
}
/**
* Loads a construction from a file (given URL).
*/
public synchronized void openFile(final String strURL) {
// avoid security problems calling from JavaScript
AccessController.doPrivileged(new PrivilegedAction<Object>() {
public Object run() {
// perform the security-sensitive operation here
// load file
app.setWaitCursor();
try {
String myStrURL = strURL;
String lowerCase = strURL.toLowerCase(Locale.US);
if (!( lowerCase.startsWith("http") || lowerCase.startsWith("file") )) {
myStrURL = applet.getCodeBase() + myStrURL;
}
URL ggbURL = new URL(myStrURL);
app.loadXML(ggbURL, lowerCase.endsWith(Application.FILE_EXT_GEOGEBRA_TOOL));
reinitGUI();
} catch (Exception e) {
e.printStackTrace();
}
app.setDefaultCursor();
return null;
}
});
}
/**
* @return The border color of the applet.
*/
public Color getBorderColor() {
return borderColor;
}
/*
public synchronized void setLanguage(String isoLanguageString) {
app.setLanguage(new Locale(isoLanguageString));
}
public synchronized void setLanguage(String isoLanguageString, String isoCountryString) {
app.setLanguage(new Locale(isoLanguageString, isoCountryString));
}
*/
/**
* Shows or hides the object with the given name in the geometry window.
*/
public synchronized void setVisible(String objName, boolean visible) {
ggbApi.setVisible(objName, visible);
}
public synchronized boolean getVisible(String objName) {
return ggbApi.getVisible(objName);
}
/**
* Sets the layer of the object with the given name in the geometry window.
* Michael Borcherds 2008-02-27
*/
public synchronized void setLayer(String objName, int layer) {
ggbApi.setLayer(objName, layer);
}
/**
* Returns the layer of the object with the given name in the geometry window.
* returns layer, or -1 if object doesn't exist
* Michael Borcherds 2008-02-27
*/
public synchronized int getLayer(String objName) {
return ggbApi.getLayer(objName);
}
/**
* Shows or hides a complete layer
* Michael Borcherds 2008-02-27
*/
public synchronized void setLayerVisible(int layer, boolean visible) {
ggbApi.setLayerVisible(layer,visible);
}
/**
* Sets the fixed state of the object with the given name.
*/
public synchronized void setFixed(String objName, boolean flag) {
ggbApi.setFixed(objName, flag);
}
/**
* Turns the trace of the object with the given name on or off.
*/
public synchronized void setTrace(String objName, boolean flag) {
ggbApi.setTrace(objName, flag);
}
/**
* Shows or hides the label of the object with the given name in the geometry window.
*/
public synchronized void setLabelVisible(String objName, boolean visible) {
ggbApi.setLabelVisible(objName, visible);
}
/**
* Sets the label style of the object with the given name in the geometry window.
* Possible label styles are NAME = 0, NAME_VALUE = 1 and VALUE = 2.
*/
public synchronized void setLabelStyle(String objName, int style) {
ggbApi.setLabelStyle(objName, style);
}
/**
* Shows or hides the label of the object with the given name in the geometry window.
*/
public synchronized void setLabelMode(String objName, boolean visible) {
ggbApi.setLabelMode(objName, visible);
}
/**
* Sets the color of the object with the given name.
*/
public synchronized void setColor(String objName, int red, int green, int blue) {
ggbApi.setColor(objName, red, green, blue);
}
public synchronized void setLineStyle(String objName, int style) {
ggbApi.setLineStyle(objName, style);
}
public synchronized void setLineThickness(String objName, int thickness) {
ggbApi.setLineThickness(objName, thickness);
}
public synchronized void setPointStyle(String objName, int style) {
ggbApi.setPointStyle(objName, style);
}
public synchronized void setPointSize(String objName, int style) {
ggbApi.setPointSize(objName, style);
}
public synchronized void setFilling(String objName, double filling) {
ggbApi.setFilling(objName, filling);
}
/*
* used by the automatic file tester (from JavaScript)
*/
public synchronized String getGraphicsViewCheckSum(final String algorithm, final String format) {
// avoid security problems calling from JavaScript
return (String)AccessController.doPrivileged(new PrivilegedAction<Object>() {
public Object run() {
// perform the security-sensitive operation here
return ggbApi.getGraphicsViewCheckSum(algorithm, format);
}
});
}
/**
* Returns the color of the object as an hex string. Note that the hex-string
* starts with # and uses upper case letters, e.g. "#FF0000" for red.
*/
public synchronized String getColor(String objName) {
return ggbApi.getColor(objName);
}
public synchronized double getFilling(String objName) {
return ggbApi.getFilling(objName);
}
public synchronized int getLineStyle(String objName) {
return ggbApi.getLineStyle(objName);
}
public synchronized int getLineThickness(String objName) {
return ggbApi.getLineThickness(objName);
}
public synchronized int getPointStyle(String objName) {
return ggbApi.getPointStyle(objName);
}
public synchronized int getPointSize(String objName) {
return ggbApi.getPointSize(objName);
}
/**
* Deletes the object with the given name.
*/
public synchronized void deleteObject(String objName) {
ggbApi.deleteObject(objName);
}
public synchronized void setAnimating(String objName, boolean animate) {
ggbApi.setAnimating(objName, animate);
}
public synchronized void setAnimationSpeed(String objName, double speed) {
ggbApi.setAnimationSpeed(objName, speed);
}
public synchronized void startAnimation() {
kernel.getAnimatonManager().startAnimation();
}
public synchronized void stopAnimation() {
kernel.getAnimatonManager().stopAnimation();
}
public void hideCursorWhenDragging(boolean hideCursorWhenDragging) {
kernel.getApplication().setUseTransparentCursorWhenDragging(hideCursorWhenDragging);
}
public synchronized boolean isAnimationRunning() {
return kernel.getAnimatonManager().isRunning();
}
/**
* Renames an object from oldName to newName.
* @return whether renaming worked
*/
public synchronized boolean renameObject(String oldName, String newName) {
return ggbApi.renameObject(oldName, newName);
}
/**
* Returns true if the object with the given name exists.
*/
public synchronized boolean exists(String objName) {
return ggbApi.exists(objName);
}
/**
* Returns true if the object with the given name has a vaild
* value at the moment.
*/
public synchronized boolean isDefined(String objName) {
return ggbApi.isDefined(objName);
}
/**
* Returns true if the object with the given name is independent.
*/
public synchronized boolean isIndependent(String objName) {
return ggbApi.isIndependent(objName);
}
/**
* Returns the value of the object with the given name as a string.
*/
public synchronized String getValueString(String objName) {
return ggbApi.getValueString(objName);
}
/**
* Returns the definition of the object with the given name as a string.
*/
public synchronized String getDefinitionString(String objName) {
return ggbApi.getDefinitionString(objName);
}
/**
* Returns the command of the object with the given name as a string.
*/
public synchronized String getCommandString(String objName) {
return ggbApi.getCommandString(objName);
}
/**
* Returns the x-coord of the object with the given name. Note: returns 0 if
* the object is not a point or a vector.
*/
public synchronized double getXcoord(String objName) {
return ggbApi.getXcoord(objName);
}
/**
* Returns the y-coord of the object with the given name. Note: returns 0 if
* the object is not a point or a vector.
*/
public synchronized double getYcoord(String objName) {
return ggbApi.getYcoord(objName);
}
/**
* Sets the coordinates of the object with the given name. Note: if the
* specified object is not a point or a vector, nothing happens.
*/
public synchronized void setCoords(String objName, double x, double y) {
ggbApi.setCoords(objName,x,y);
}
/**
* Returns the double value of the object with the given name. Note: returns 0 if
* the object does not have a value.
*/
public synchronized double getValue(String objName) {
return ggbApi.getValue(objName);
}
/**
* Sets the double value of the object with the given name. Note: if the
* specified object is not a number, nothing happens.
*/
public synchronized void setValue(String objName, double x) {
ggbApi.setValue(objName,x);
}
/**
* Turns the repainting of all views on or off.
*/
public synchronized void setRepaintingActive(boolean flag) {
//Application.debug("set repainting: " + flag);
ggbApi.setRepaintingActive(flag);
}
/*
* Methods to change the geometry window's properties
*/
/**
* Sets the Cartesian coordinate system in the graphics window.
*/
public synchronized void setCoordSystem(double xmin, double xmax, double ymin, double ymax) {
app.getEuclidianView().setRealWorldCoordSystem(xmin, xmax, ymin, ymax);
}
/**
* Shows or hides the x- and y-axis of the coordinate system in the graphics window.
*/
public synchronized void setAxesVisible(boolean xVisible, boolean yVisible) {
ggbApi.setAxesVisible(xVisible, yVisible);
}
/**
* Shows or hides the coordinate grid in the graphics window.
*/
public synchronized void setGridVisible(boolean flag) {
app.getSettings().getEuclidian(1).showGrid(flag);
app.getSettings().getEuclidian(2).showGrid(flag);
}
/**
* Returns an array with all object names.
*/
public synchronized String [] getAllObjectNames() {
return ggbApi.getObjNames();
}
/**
* Returns the number of objects in the construction.
*/
public synchronized int getObjectNumber() {
return ggbApi.getObjNames().length;
}
/**
* Returns the name of the n-th object of this construction.
*/
public synchronized String getObjectName(int i) {
return ggbApi.getObjectName(i);
}
/**
* Returns the type of the object with the given name as a string (e.g. point, line, circle, ...)
*/
public synchronized String getObjectType(String objName) {
return ggbApi.getObjectType(objName);
}
/**
* returns a String (base-64 encoded PNG file of the Graphics View)
*/
public synchronized String getPNGBase64(final double exportScale, final boolean transparent, final double DPI) {
// avoid security problems calling from JavaScript
return AccessController.doPrivileged(new PrivilegedAction<String>() {
public String run() {
// perform the security-sensitive operation here
return ggbApi.getPNGBase64(exportScale, transparent, DPI);
}
});
}
/**
* returns a String (base-64 encoded PNG file of the Graphics View)
*/
public synchronized boolean writePNGtoFile(final String filename, final double exportScale, final boolean transparent, final double DPI) {
// avoid security problems calling from JavaScript
Boolean b = AccessController.doPrivileged(new PrivilegedAction<Boolean>() {
public Boolean run() {
// perform the security-sensitive operation here
return ggbApi.writePNGtoFile(filename, exportScale, transparent, DPI);
}
});
return b.booleanValue();
}
/**
* Sets the mode of the geometry window (EuclidianView).
*/
public synchronized void setMode(int mode) {
app.setMode(mode);
}
public synchronized void initJavaScript() {
if (!app.useBrowserForJavaScript()) return;
if (browserWindow == null) {
try {
if (browserWindow == null)
Application.debug("Warning: could not initialize JSObject.getWindow() for GeoGebraApplet");
} catch (Exception e) {
Application.debug("Exception: could not initialize JSObject.getWindow() for GeoGebraApplet");
}
}
}
public void callJavaScript(String jsFunction, Object [] args) {
//Application.debug("callJavaScript: " + jsFunction);
initJavaScript();
try {
if (browserWindow != null) {
Application.debug("callJavaScript: "+jsFunction);
browserWindow.call(jsFunction, args);
}
else Application.debug("Warning: could not initialize JSObject.getWindow() for GeoGebraApplet when calling "+jsFunction);
} catch (Exception e) {
System.err.println("Warning: Error calling JavaScript function '"+jsFunction+"' ("+e.getLocalizedMessage()+")");
//e.printStackTrace();
}
}
public JApplet getJApplet() {
return applet;
}
public synchronized void registerAddListener(String JSFunctionName) {
app.getScriptManager().registerAddListener(JSFunctionName);
}
public synchronized void unregisterAddListener(String JSFunctionName) {
app.getScriptManager().unregisterAddListener(JSFunctionName);
}
public synchronized void registerRemoveListener(String JSFunctionName) {
app.getScriptManager().registerRemoveListener(JSFunctionName);
}
public synchronized void unregisterRemoveListener(String JSFunctionName) {
app.getScriptManager().unregisterRemoveListener(JSFunctionName);
}
public synchronized void registerClearListener(String JSFunctionName) {
app.getScriptManager().registerClearListener(JSFunctionName);
}
public synchronized void unregisterClearListener(String JSFunctionName) {
app.getScriptManager().unregisterClearListener(JSFunctionName);
}
public synchronized void registerRenameListener(String JSFunctionName) {
app.getScriptManager().registerRenameListener(JSFunctionName);
}
public synchronized void unregisterRenameListener(String JSFunctionName) {
app.getScriptManager().unregisterRenameListener(JSFunctionName);
}
public synchronized void registerUpdateListener(String JSFunctionName) {
app.getScriptManager().registerUpdateListener(JSFunctionName);
}
public synchronized void unregisterUpdateListener(String JSFunctionName) {
app.getScriptManager().unregisterUpdateListener(JSFunctionName);
}
public synchronized void registerObjectUpdateListener(String objName, String JSFunctionName) {
app.getScriptManager().registerObjectUpdateListener(objName, JSFunctionName);
}
public synchronized void unregisterObjectUpdateListener(String objName) {
app.getScriptManager().unregisterObjectUpdateListener(objName);
}
public boolean isMoveable(String objName) {
return ggbApi.isMoveable(objName);
}
}
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