package ij.plugin.frame;
import java.awt.*;
import java.awt.event.*;
import java.util.*;
import java.io.*;
import ij.*;
import ij.plugin.*;
import ij.plugin.frame.*; 
import ij.text.*;
import ij.gui.*;
import ij.util.*;
import ij.io.*;
import ij.process.*;
import ij.measure.*;

/** This is ImageJ's macro recorder. */
public class Recorder extends PlugInFrame implements PlugIn, ActionListener, ImageListener, ItemListener {

    /** This variable is true if the recorder is running. */
    public static boolean record;
    
    /** Set this variable true to allow recording within IJ.run() calls. */
    public static boolean recordInMacros;

    private final static int MACRO=0, JAVASCRIPT=1, BEANSHELL=2, JAVA=3;
    private final static String[] modes = {"Macro", "JavaScript", "BeanShell", "Java"};
    private Choice mode;
    private Button makeMacro, help;
    private TextField fileName;
    private String fitTypeStr = CurveFitter.fitList[0];
    private static TextArea textArea;
    private static Recorder instance;
    private static String commandName;
    private static String commandOptions;
    private static String defaultName = "Macro.ijm";
    private static boolean recordPath = true;
    private static boolean scriptMode;
    private static boolean imageUpdated;
    private static int imageID;
    private static boolean fgColorSet, bgColorSet;
    private static boolean bbSet;

    public Recorder() {
        this(true); 
    }

    public Recorder(boolean showFrame) {
        super("Recorder");
        if (instance!=null) {
            WindowManager.toFront(instance);
            return;
        }
        WindowManager.addWindow(this);
        instance = this;
        record = true;
        scriptMode = false;
        recordInMacros = false;
        Panel panel = new Panel(new FlowLayout(FlowLayout.LEFT, 0, 0));
        panel.add(new Label("  Record:"));
        mode = new Choice();
        for (int i=0; i<modes.length; i++)
            mode.addItem(modes[i]);
        mode.addItemListener(this);
        String m = Prefs.get("recorder.mode", modes[MACRO]);
        if (m.equals("Plugin")) m=modes[JAVA];
        mode.select(m);
        panel.add(mode);
        panel.add(new Label("    Name:"));
        fileName = new TextField(defaultName, 15);
        setFileName();
        panel.add(fileName);
        panel.add(new Label("   "));
        makeMacro = new Button("Create");
        makeMacro.addActionListener(this);
        panel.add(makeMacro);
        panel.add(new Label("   "));
        help = new Button("?");
        help.addActionListener(this);
        panel.add(help);
        add("North", panel);
        textArea = new TextArea("", 15, 80, TextArea.SCROLLBARS_VERTICAL_ONLY);
        textArea.setFont(new Font("Monospaced", Font.PLAIN, 12));
        if (IJ.isLinux()) textArea.setBackground(Color.white);
        add("Center", textArea);
        pack();
        GUI.center(this);
        if (showFrame)
            show();
        IJ.register(Recorder.class);
        fgColorSet = bgColorSet = false;
        bbSet = false;
    }
    
    public static void record(String method) {
        if (textArea==null)
            return;
        textArea.append(method+"();\n");
    }

    /** Starts recording a command. Does nothing if the recorder is
        not open or the command being recorded has called IJ.run(). 
    */
    public static void setCommand(String command) {
        String threadName = Thread.currentThread().getName();
        boolean isMacro = threadName.startsWith("Run$_");
        if (threadName.contains("Popup Menu") || threadName.contains("Developer Menu"))
            isMacro = false;
        //IJ.log("setCommand: "+command+"  "+threadName+"  "+isMacro);
        if (textArea==null || (isMacro&&!recordInMacros))
            return;
        commandName = command;
        commandOptions = null;
        recordPath = true;
        imageUpdated = false;
        imageID = 0;
        if (scriptMode) {
            ImagePlus imp = WindowManager.getCurrentImage();
            imageID = imp!=null?imp.getID():0;
            if (imageID!=0)
                ImagePlus.addImageListener(instance);
        }
        //IJ.log("setCommand: "+command+" "+Thread.currentThread().getName());
    }

    /** Returns the name of the command currently being recorded, or null. */
    public static String getCommand() {
        return commandName;
    }

    static String fixPath (String path) {
        StringBuffer sb = new StringBuffer();
        char c;
        for (int i=0; i<path.length(); i++) {
            sb.append(c=path.charAt(i));
            if (c=='\\')
                sb.append("\\");
        }
        return new String(sb);
    }
    
    public static void record(String method, String arg) {
        if (IJ.debugMode) IJ.log("record: "+method+"  "+arg);
        boolean sw = method.equals("selectWindow");
        if (textArea!=null && !(scriptMode&&sw||commandName!=null&&sw)) {
            if (scriptMode && method.equals("roiManager"))
                textArea.append("rm.runCommand(imp,\""+arg+"\");\n");
            else if (scriptMode && method.equals("run"))
                textArea.append("IJ."+method+"(\""+arg+"\");\n");
            else {
                if (method.equals("setTool"))
                    method = "//"+(scriptMode?"IJ.":"")+method;
                textArea.append(method+"(\""+arg+"\");\n");
            }
        }
    }

    public static void record(String method, String arg1, String arg2) {
        if (textArea==null) return;
        if (arg1.equals("Open")||arg1.equals("Save")||method.equals("saveAs"))
            arg2 = fixPath(arg2);
        if (scriptMode&&method.equals("roiManager"))
            textArea.append("rm.runCommand(\""+arg1+"\", \""+arg2+"\");\n");
        else {
            if (scriptMode && method.equals("saveAs"))
                method = "IJ." + method;
            textArea.append(method+"(\""+arg1+"\", \""+arg2+"\");\n");
        }
    }
    
    public static void record(String method, String arg1, String arg2, String arg3) {
        if (textArea==null) return;
        textArea.append(method+"(\""+arg1+"\", \""+arg2+"\",\""+arg3+"\");\n");
    }

    public static void record(String method, int a1) {
        if (textArea==null) return;
        textArea.append(method+"("+a1+");\n");
    }

    public static void record(String method, int a1, int a2) {
        if (textArea==null) return;
        textArea.append(method+"("+a1+", "+a2+");\n");
    }

    public static void record(String method, int a1, int a2, String a3) {
        if (textArea==null) return;
        textArea.append(method+"("+a1+", "+a2+", \""+a3+"\");\n");
    }

    public static void record(String method, double a1, double a2) {
        if (textArea==null) return;
        int places = Math.abs(a1)<0.0001||Math.abs(a2)<0.0001?9:4;
        textArea.append(method+"("+IJ.d2s(a1,places)+", "+IJ.d2s(a2,places)+");\n");
    }

    public static void record(String method, int a1, int a2, int a3) {
        if (textArea==null) return;
        if (scriptMode&&method.endsWith("groundColor")) method = "IJ."+method;
        textArea.append(method+"("+a1+", "+a2+", "+a3+");\n");
    }

    public static void record(String method, String a1, int a2) {
        textArea.append(method+"(\""+a1+"\", "+a2+");\n");
    }

    public static void record(String method, String args, int a1, int a2) {
        if (textArea==null) return;
        textArea.append(method+"(\""+args+"\", "+a1+", "+a2+");\n");
    }

    public static void record(String method, int a1, int a2, int a3, int a4) {
        if (textArea==null) return;
        if (scriptMode&&method.startsWith("make")) {
            if (method.equals("makeRectangle"))
                recordString("imp.setRoi("+a1+","+a2+","+a3+","+a4+");\n");
            else if (method.equals("makeOval"))
                recordString("imp.setRoi(new OvalRoi("+a1+","+a2+","+a3+","+a4+"));\n");
            else if (method.equals("makeLine"))
                recordString("imp.setRoi(new Line("+a1+","+a2+","+a3+","+a4+"));\n");
            else if (method.equals("makeArrow"))
                recordString("imp.setRoi(new Arrow("+a1+","+a2+","+a3+","+a4+"));\n");
        } else {
            if (method.equals("makeArrow")) {
                ImagePlus imp = WindowManager.getCurrentImage();
                Roi roi = imp!=null?imp.getRoi():null;
                if (roi!=null && (roi instanceof Line)) {
                    Arrow arrow = (Arrow)roi;
                    String options = Arrow.styles[arrow.getStyle()];
                    if (arrow.getOutline())
                        options += " outline";
                    if (arrow.getDoubleHeaded())
                        options += " double";
                    if (arrow.getHeadSize()<=5)
                        options += " small";
                    else if (arrow.getHeadSize()>=15)
                        options += " large";
                    options = options.toLowerCase();
                    int strokeWidth = (int)arrow.getStrokeWidth();
                    textArea.append(method+"("+a1+", "+a2+", "+a3+", "+a4+", \""+options+"\");\n");
                    if (strokeWidth!=1)
                        textArea.append("Roi.setStrokeWidth("+strokeWidth+");\n");
                    Color color = arrow.getStrokeColor();
                    if (color!=null)
                        textArea.append("Roi.setStrokeColor(\""+Colors.colorToString(color)+"\");\n");
                    return;
                }
            }
            textArea.append(method+"("+a1+", "+a2+", "+a3+", "+a4+");\n");
        }
    }

    public static void record(String method, int a1, int a2, int a3, int a4, int a5) {
        textArea.append(method+"("+a1+", "+a2+", "+a3+", "+a4+", "+a5+");\n");
    }
    
    public static void record(String method, int a1, int a2, int a3, int a4, double a5) {
        textArea.append(method+"("+a1+", "+a2+", "+a3+", "+a4+", "+IJ.d2s(a5,2)+");\n");
    }

    public static void record(String method, String path, String args, int a1, int a2, int a3, int a4, int a5) {
        if (textArea==null) return;
        path = fixPath(path);
        method = "//"+method;
        textArea.append(method+"(\""+path+"\", "+"\""+args+"\", "+a1+", "+a2+", "+a3+", "+a4+", "+a5+");\n");
    }
    
    public static void recordString(String str) {
        if (textArea!=null)
            textArea.append(str);
    }

    public static void recordCall(String call) {
        if (IJ.debugMode) IJ.log("recordCall: "+call+"  "+commandName);
        boolean isMacro = Thread.currentThread().getName().endsWith("Macro$") && !recordInMacros;
        if (textArea!=null && scriptMode && !IJ.macroRunning() && !isMacro) {
            if (javaMode() && call.startsWith("rm.setSelected")) {
                call = call.replace("[", "new int[]{");
                call = call.replace("])", "})");
            }
            if (javaMode() && call.startsWith("rt = "))
                call = "ResultTable " + call;
            textArea.append(call+"\n");
            commandName = null;
        }
    }
    
    public static void recordCall(String className, String call) {
        recordCall(javaMode()?className+" "+call:call);
    }

    public static void recordRoi(Roi roi) {
        if (roi==null)
            return;
        Polygon polygon = roi.getPolygon();
        recordRoi(polygon, roi.getType());
    }

    public static void recordRoi(Polygon p, int type) {
        if (textArea==null)
            return;
        if (scriptMode)
            {recordScriptRoi(p,type); return;}
        if (type==Roi.ANGLE||type==Roi.POINT) {
            String xarr = "newArray(", yarr="newArray(";
            xarr += p.xpoints[0]+",";
            yarr += p.ypoints[0]+",";
            xarr += p.xpoints[1]+",";
            yarr += p.ypoints[1]+",";
            xarr += p.xpoints[2]+")";
            yarr += p.ypoints[2]+")";
            String typeStr= type==Roi.ANGLE?"angle":"point";
            textArea.append("makeSelection(\""+typeStr+"\","+xarr+","+yarr+");\n");
        } else {
            String method = type>=Roi.LINE && type<=Roi.FREELINE?"makeLine":"makePolygon";
            StringBuffer args = new StringBuffer();
            for (int i=0; i<p.npoints; i++) {
                args.append(p.xpoints[i]+",");
                args.append(""+p.ypoints[i]);
                if (i!=p.npoints-1) args.append(",");
            }
            textArea.append(method+"("+args.toString()+");\n");
        }
    }

    public static void recordScriptRoi(Polygon p, int type) {
        StringBuffer x = new StringBuffer();
        for (int i=0; i<p.npoints; i++) {
            x.append(p.xpoints[i]);
            if (i!=p.npoints-1) x.append(",");
        }
        String xpoints = x.toString();
        StringBuffer y = new StringBuffer();
        for (int i=0; i<p.npoints; i++) {
            y.append(p.ypoints[i]);
            if (i!=p.npoints-1) y.append(",");
        }
        String ypoints = y.toString();
        if (javaMode()) {
            textArea.append("int[] xpoints = {"+xpoints+"};\n");
            textArea.append("int[] ypoints = {"+ypoints+"};\n");
        } else {
            textArea.append("xpoints = ["+xpoints+"];\n");
            textArea.append("ypoints = ["+ypoints+"];\n");
        }
        String typeStr = "POLYGON";
        switch (type) {
            case Roi.POLYLINE: typeStr = "POLYLINE"; break;
            case Roi.ANGLE: typeStr = "ANGLE"; break;
        }
        typeStr = "Roi."+typeStr;
        if (javaMode()) {
            if (type==Roi.POINT)
                textArea.append("imp.setRoi(new PointRoi(xpoints,ypoints,"+p.npoints+"));\n");
            else
                textArea.append("imp.setRoi(new PolygonRoi(xpoints,ypoints,"+p.npoints+","+typeStr+"));\n");
        } else {
            if (type==Roi.POINT)
                textArea.append("imp.setRoi(new PointRoi(xpoints,ypoints));\n");
            else
                textArea.append("imp.setRoi(new PolygonRoi(xpoints,ypoints,"+typeStr+"));\n");
        }
    }
    
    private static boolean javaMode() {
        if (instance==null)
            return false;
        String m = instance.mode.getSelectedItem();
        return m.equals(modes[BEANSHELL]) || m.equals(modes[JAVA]);
    }
    
    public static void recordOption(String key, String value) {
        if (key==null) return;
        key = trimKey(key);
        value = addQuotes(value);
        checkForDuplicate(key+"=", value);
        if (commandOptions==null)
            commandOptions = key+"="+value;
        else
            commandOptions += " "+key+"="+value;
    }

    public static void recordPath(String key, String path) {
        if (key==null || !recordPath) {
            recordPath = true;
            return;
        }
        key = trimKey(key);
        path = fixPath(path);
        path = addQuotes(path);
        if (commandOptions!=null && commandOptions.contains(key+"="+path))
            return; // don't record duplicate
        checkForDuplicate(key+"=", path);
        if (commandOptions==null || commandOptions==" ")
            commandOptions = key+"="+path;
        else
            commandOptions += " "+key+"="+path;
    }

    public static void recordOption(String key) {
        if (key==null) return;
        if (commandOptions==null && key.equals(" "))
            commandOptions = " ";
        else {
            key = trimKey(key);
            checkForDuplicate(" "+key, "");
            if (commandOptions==null || commandOptions==" ")
                commandOptions = key;
            else
                commandOptions += " "+key;
        }
    }
    
    static void checkForDuplicate(String key, String value) {
        if (commandOptions!=null && commandName!=null && commandOptions.indexOf(key)!=-1 && (value.equals("") || commandOptions.indexOf(value)==-1)) {
            if (key.endsWith("=")) key = key.substring(0, key.length()-1);
            IJ.showMessage("Recorder", "Duplicate keyword:\n \n" 
                + "    Command: " + "\"" + commandName +"\"\n"
                + "    Keyword: " + "\"" + key +"\"\n"
                + "    Value: " + value+"\n \n"
                + "Add an underscore to the corresponding label\n"
                + "in the dialog to make the first word unique.");
        }
    }
    
    static String trimKey(String key) {
        int index = key.indexOf(" ");
        if (index>-1)
            key = key.substring(0,index);
        index = key.indexOf(":");
        if (index>-1)
            key = key.substring(0,index);
        key = key.toLowerCase(Locale.US);
        return key;
    }

    /** Writes the current command and options to the Recorder window. */
    public static void saveCommand() {
        String name = commandName;
        if (name!=null) {
            if (commandOptions==null && (name.equals("Fill")||name.equals("Clear")||name.equals("Draw")))
                commandOptions = "slice";
            if (!fgColorSet && (name.equals("Fill")||name.equals("Draw")))
                setForegroundColor(Toolbar.getForegroundColor());
            else if (!bgColorSet && (name.equals("Clear")||name.equals("Clear Outside")))
                setBackgroundColor(Toolbar.getBackgroundColor());
            if (!bbSet && (name.equals("Make Binary")||name.equals("Convert to Mask")||name.equals("Erode")
            ||name.equals("Dilate")||name.equals("Skeletonize")))
                setBlackBackground();
            if (name.equals("Add Shortcut by Name... "))
                name = "Add Shortcut... ";
            if (commandOptions!=null) {
                if (name.equals("Open...") || name.equals("URL...")) {
                    String s = scriptMode?"imp = IJ.openImage":"open";
                    String path = strip(commandOptions);
                    boolean openingLut = false;
                    if (scriptMode) {
                        if (isTextOrTable(commandOptions))
                            s = "IJ.open";
                        else if (path!=null && path.endsWith(".lut")) {
                            s = "lut = Opener.openLut";
                            openingLut = true;
                        }
                    }
                    textArea.append(s+"(\""+path+"\");\n");
                    ImagePlus imp = WindowManager.getCurrentImage();
                    if (openingLut && imp!=null && !imp.getTitle().endsWith(".lut"))
                        textArea.append("imp.setLut(lut);\n");
                } else if (name.equals("TIFF Virtual Stack...") && scriptMode) {
                    String s = "imp = IJ.openVirtual";
                    String path = strip(commandOptions);
                    textArea.append(s+"(\""+path+"\");\n");
                } else if (isSaveAs()) {
                            if (name.endsWith("..."))
                                    name= name.substring(0, name.length()-3);
                            String path = strip(commandOptions);
                            String s = scriptMode?"IJ.saveAs(imp, ":"saveAs(";
                            textArea.append(s+"\""+name+"\", \""+path+"\");\n");
                } else if (name.equals("Image..."))
                    appendNewImage(false);
                else if (name.equals("Hyperstack...")||name.equals("New Hyperstack..."))
                    appendNewImage(true);
                else if (name.equals("Set Slice..."))
                    textArea.append((scriptMode?"imp.":"")+"setSlice("+strip(commandOptions)+");\n");
                else if (name.equals("Rename..."))
                    textArea.append((scriptMode?"imp.setTitle":"rename")+"(\""+strip(commandOptions)+"\");\n");
                else if (name.equals("Wand Tool..."))
                    textArea.append("//run(\""+name+"\", \""+commandOptions+"\");\n");
                else if (name.equals("Results... ")&&commandOptions.indexOf(".txt")==-1)
                    textArea.append((scriptMode?"IJ.":"")+"open(\""+strip(commandOptions)+"\");\n");
                else if (name.equals("Results...")) // Save As>Results
                    ;
                else if (name.equals("Run...")) // Plugins>Macros>Run
                    ;
                else if (scriptMode && name.equals("Text Image... ")) // File>Import>Text Image
                    ;
                else {
                    if (name.equals("Calibrate...")&&commandOptions.startsWith("function=None"))
                        commandOptions = commandOptions.substring(0,13);
                    String prefix = "run(";
                    if (scriptMode) {
                        boolean addImp = imageUpdated || (WindowManager.getCurrentImage()!=null
                            &&(name.equals("Properties... ")||name.equals("Fit Spline")||commandOptions.contains("save=")));
                        if (commandOptions.contains("open="))
                            addImp = false;
                        prefix = addImp?"IJ.run(imp, ":"IJ.run(";
                    }
                    textArea.append(prefix+"\""+name+"\", \""+commandOptions+"\");\n");
                    if (nonAscii(commandOptions)) {
                        if (commandOptions!=null && !commandOptions.contains("="+IJ.micronSymbol+"m"))
                            textArea.append("  <<warning: the options string contains one or more non-ascii characters>>\n");
                    }
                }
            } else {
                ImagePlus imp = WindowManager.getCurrentImage();
                Roi roi = imp!=null?imp.getRoi():null;
                if (name.equals("Threshold...") || name.equals("Fonts...") || name.equals("Brightness/Contrast...") || name.equals("Channels Tool..."))
                    textArea.append((scriptMode?"//IJ.":"//")+"run(\""+name+"\");\n");
                else if (name.equals("Start Animation [\\]"))
                    textArea.append("doCommand(\"Start Animation [\\\\]\");\n");
                else if (name.equals("Split Channels") && scriptMode) {
                    String text = "channels = ChannelSplitter.split(imp);\n";
                    if (javaMode())
                        text = "ImagePlus[] " + text;
                    textArea.append(text);
                } else if (name.equals("Add to Manager"))
                    ;
                else if (name.equals("Find Commands..."))
                    ;
                else if (roi!=null && (roi instanceof TextRoi) && (name.equals("Draw")||name.equals("Add Selection...")))
                    textArea.append(((TextRoi)roi).getMacroCode(name, imp));
                else {
                    if (IJ.altKeyDown() && (name.equals("Open Next")||name.equals("Plot Profile")))
                        textArea.append("setKeyDown(\"alt\"); ");
                    if (scriptMode) {
                        boolean addImp = imageUpdated ||
                            (imp!=null&&(name.equals("Select None")||name.equals("Draw")||name.equals("Fit Spline")||name.equals("Add Selection...")));
                        String prefix = addImp?"IJ.run(imp, ":"IJ.run(";
                        textArea.append(prefix+"\""+name+"\", \"\");\n");
                    } else
                        textArea.append("run(\""+name+"\");\n");
                }
            }
        }
        commandName = null;
        commandOptions = null;
        if (imageID!=0) {
            ImagePlus.removeImageListener(instance);
            imageID = 0;
        }
    }
    
    private static boolean nonAscii(String s) {
        int len = s!=null?s.length():0;
        for (int i=0; i<len; i++) {
            if (s.charAt(i)>127)
                return true;
        }
        return false;
    }
    
    static boolean isTextOrTable(String path) {
        return path.endsWith(".txt") || path.endsWith(".csv") || path.endsWith(".xls") || path.endsWith(".tsv");
    }
    
    static boolean isSaveAs() {
        return commandName.equals("Tiff...")
            || commandName.equals("Gif...")
            || commandName.equals("Jpeg...")
            || commandName.equals("Text Image...")
            || commandName.equals("ZIP...")
            || commandName.equals("Raw Data...")
            || commandName.equals("BMP...")
            || commandName.equals("PNG...")
            || commandName.equals("PGM...")
            || commandName.equals("FITS...")
            || commandName.equals("LUT...")
            || commandName.equals("Selection...")
            || commandName.equals("XY Coordinates...")
            //|| commandName.equals("Results...")
            || commandName.equals("Text... ");
    }

    static void appendNewImage(boolean hyperstack) {
        String options = getCommandOptions() + " ";
        //IJ.log("appendNewImage: "+options);
        String title = Macro.getValue(options, "name", "Untitled");
        String type = Macro.getValue(options, "type", "8-bit");
        String fill = Macro.getValue(options, "fill", "");
        if (!fill.equals(""))
            type = type +" " + fill.toLowerCase();
        if (hyperstack) {
            String mode = Macro.getValue(options, "display", "");
            if (!mode.equals(""))
                type = type +" " + mode.toLowerCase() + "-mode";
            if (options.contains(" label"))
                type = type +" label";
        }
        int width = (int)Tools.parseDouble(Macro.getValue(options, "width", "512"));
        int height = (int)Tools.parseDouble(Macro.getValue(options, "height", "512"));
        String d1= ", " + (int)Tools.parseDouble(Macro.getValue(options, "slices", "1"));
        String d2="", d3="";
        if (hyperstack) {
            d1 = ", " + (int)Tools.parseDouble(Macro.getValue(options, "channels", "1"));
            d2 = ", " + (int)Tools.parseDouble(Macro.getValue(options, "slices", "1"));
            d3 = ", " + (int)Tools.parseDouble(Macro.getValue(options, "frames", "1"));
        }
        textArea.append((scriptMode?"imp = IJ.createImage":"newImage")
            +"(\""+title+"\", "+"\""+type+"\", "+width+", "+height+d1+d2+d3+");\n");
    }

    static String strip(String value) {
        int index = value.indexOf('=');
        if (index>=0)
            value = value.substring(index+1);
        if (value.startsWith("[")) {
            int index2 = value.indexOf(']');
            if (index2==-1) index2 = value.length();
            value = value.substring(1, index2);
        } else {
            index = value.indexOf(' ');
            if (index!=-1)
                value = value.substring(0, index);
        }
        return value;
    }

    static String addQuotes(String value) {
        int index = value.indexOf(' ');
        if (index>-1)
            value = "["+value+"]";
        return value;
    }
    
    /** Used by GenericDialog to determine if any options have been recorded. */
    static public String getCommandOptions() {
        return commandOptions;
    }

    void createMacro() {
        String text = textArea.getText();
        if (text==null || text.equals("")) {
            IJ.showMessage("Recorder", "A macro cannot be created until at least\none command has been recorded.");
            return;
        }
        Editor ed = (Editor)IJ.runPlugIn("ij.plugin.frame.Editor", "");
        if (ed==null)
            return;
        boolean java = mode.getSelectedItem().equals(modes[JAVA]);
        boolean beanshell = mode.getSelectedItem().equals(modes[BEANSHELL]);
        String name = fileName.getText();
        int dotIndex = name.lastIndexOf(".");
        if (scriptMode) { // JavaScript, BeanShell or Java
            if (dotIndex>=0) name = name.substring(0, dotIndex);
            if (text.indexOf("rm.")!=-1) {
                text = (java?"RoiManager ":"")+ "rm = RoiManager.getInstance();\n"
                + "if (rm==null) rm = new RoiManager();\n"
                + text;
            }
            if (text.contains("overlay.add"))
                text = (java?"Overlay ":"") + "overlay = new Overlay();\n" + text;
            if ((text.contains("imp.")||text.contains("(imp")||text.contains("overlay.add")) && !text.contains("IJ.openImage")
            && !text.contains("IJ.openVirtual") && !text.contains("IJ.createImage"))
                text = (java?"ImagePlus ":"") + "imp = IJ.getImage();\n" + text;
            if (text.contains("overlay.add"))
                text = text + "imp.setOverlay(overlay);\n";
            if (text.indexOf("imp =")!=-1 && !(text.indexOf("IJ.getImage")!=-1||text.indexOf("IJ.saveAs")!=-1||text.indexOf("imp.close")!=-1))
                text = text + "imp.show();\n";
            if (java) {
                name += ".java";
                createPlugin(text, name);
                return;
            } else if (beanshell)
                name += ".bsh";
            else
                name += ".js";
        } else { // ImageJ macro
            if (!name.endsWith(".txt")) {
                if (dotIndex>=0) name = name.substring(0, dotIndex);
                name += ".ijm";
            }
        }
        ed.createMacro(name, text);
        fgColorSet = bgColorSet = false;
        bbSet = false;
    }
    
    void createPlugin(String text, String name) {
        StringTokenizer st = new StringTokenizer(text, "\n");
        int n = st.countTokens();
        boolean impDeclared = false;
        boolean lutDeclared = false;
        String line;
        StringBuffer sb = new StringBuffer();
        for (int i=0; i<n; i++) {
            line = st.nextToken();
            if (line!=null && line.length()>3) {
                sb.append("\t\t");
                if (line.startsWith("imp =") && !impDeclared) {
                    sb.append("ImagePlus ");
                    impDeclared = true;
                }
                if (line.startsWith("lut =") && !lutDeclared) {
                    sb.append("LUT ");
                    lutDeclared = true;
                }
                sb.append(line);
                sb.append('\n');
            }
        }
        String text2 = new String(sb);
        text2 = text2.replaceAll("print", "IJ.log");
        NewPlugin np = (NewPlugin)IJ.runPlugIn("ij.plugin.NewPlugin", text2);
        Editor ed = np.getEditor();
        ed.updateClassName(ed.getTitle(), name);
        ed.setTitle(name);
    }

    /** Temporarily disables path recording. */
    public static void disablePathRecording() {
        recordPath = false;
    }
    
    public static boolean scriptMode() {
        return scriptMode;
    }
    
    public void actionPerformed(ActionEvent e) {
        if (e.getSource()==makeMacro)
            createMacro();
        else if (e.getSource()==help)
            showHelp();
    }

    public void itemStateChanged(ItemEvent e) {
        setFileName();
        Prefs.set("recorder.mode", mode.getSelectedItem());
    }
    
    void setFileName() {
        String name = mode.getSelectedItem();
        scriptMode = !name.equals(modes[MACRO]);
        if (name.equals(modes[MACRO]))
            fileName.setText("Macro.ijm");
        else if (name.equals(modes[JAVASCRIPT]))
            fileName.setText("Script.js");
        else if (name.equals(modes[BEANSHELL]))
            fileName.setText("Script.bsh");
        else
            fileName.setText("My_Plugin.java");
        fgColorSet = bgColorSet = false;
        bbSet = false;
    }

    public void imageUpdated(ImagePlus imp) {
        if (imp.getID()==imageID)
            imageUpdated = true;
    }

    public void imageOpened(ImagePlus imp) { }

    public void imageClosed(ImagePlus imp) { }

    void showHelp() {
        IJ.showMessage("Recorder",
            "Click \"Create\" to open recorded commands\n"  
            +"as a macro in an editor window.\n" 
            +" \n" 
            +"In the editor:\n" 
            +" \n"
            +"    Type ctrl+R (Macros>Run Macro) to\n" 
            +"    run the macro.\n"     
            +" \n"    
            +"    Use File>Save As to save it and\n" 
            +"    ImageJ's Open command to open it.\n" 
            +" \n"    
            +"    To create a command, save in the plugins\n"  
            +"    folder and run Help>Refresh Menus.\n"  
        );
    }
    
    public void close() {
        super.close();
        record = false;
        textArea = null;
        commandName = null;
        instance = null;    
    }

    public String getText() {
        if (textArea==null)
            return "";
        else
            return textArea.getText();
    }
    
    public static Recorder getInstance() {
        return instance;
    }
    
    public static void setForegroundColor(Color c) {
        record("setForegroundColor", c.getRed(), c.getGreen(), c.getBlue());
        fgColorSet = true;
    }
    
    public static void setBackgroundColor(Color c) {
        record("setBackgroundColor", c.getRed(), c.getGreen(), c.getBlue());
        bgColorSet = true;
    }
    
    public static void setBlackBackground() {
        String bb = Prefs.blackBackground?"true":"false";
        if (scriptMode)
            recordString("Prefs.blackBackground = "+bb+";\n");
        else
            recordString("setOption(\"BlackBackground\", "+bb+");\n");
        bbSet = true;
    }
    
    /** Override windowActivated in PlugInFrame. */
    public void windowActivated(WindowEvent e) {
        if (IJ.isMacintosh() && !IJ.isJava17())
            this.setMenuBar(Menus.getMenuBar());
        WindowManager.setWindow(this);
    }
    
}