package ij.plugin;
import ij.*;
import ij.text.*;
import ij.io.OpenDialog;
import java.awt.*;
import java.util.*;
import java.applet.Applet;

/** Displays the Java system properties in a text window. */
public class JavaProperties implements PlugIn {

    StringBuffer sb = new StringBuffer();
    
    public void run(String arg) {
        sb.append("\n");
        sb.append("Java properties applets can read:\n");
        show("java.version");
        show("java.vendor");
        if (IJ.isMacintosh()) show("mrj.version");
        show("os.name");
        show("os.version");
        show("os.arch");
        show("file.separator");
        show("path.separator");
        
        String s = System.getProperty("line.separator");
        char ch1, ch2;
        String str1, str2="";
        ch1 = s.charAt(0);
        if (ch1=='\r')
            str1 = "<cr>";
        else
            str1 = "<lf>";
        if (s.length()==2) {
            ch2 = s.charAt(1);
            if (ch2=='\r')
                str2 = "<cr>";
            else
                str2 = "<lf>";
        }
        sb.append("  line.separator: " + str1 + str2+"\n");
            
        Applet applet = IJ.getApplet();
        if (applet!=null) {
            sb.append("\n");
            sb.append("  code base: "+applet.getCodeBase()+"\n");
            sb.append("  document base: "+applet.getDocumentBase()+"\n");
            sb.append("  sample images dir: "+Prefs.getImagesURL()+"\n");
            TextWindow tw = new TextWindow("Properties", new String(sb), 400, 400);
            return;
        }
        sb.append("\n");
        sb.append("Java properties only applications can read:\n");
        show("user.name");
        show("user.home");
        show("user.dir");
        show("user.country");
        show("file.encoding");
        show("java.home");
        show("java.compiler");
        show("java.class.path");
        show("java.ext.dirs");
        show("java.io.tmpdir");
        
        sb.append("\n");
        sb.append("Other properties:\n");
        String userDir = System.getProperty("user.dir");
        String userHome = System.getProperty("user.home");
        String osName = System.getProperty("os.name");
        sb.append("  IJ.getVersion: "+IJ.getVersion()+"\n");
        sb.append("  IJ.isJava2: "+IJ.isJava2()+"\n");
        sb.append("  IJ.isJava14: "+IJ.isJava14()+"\n");
        sb.append("  IJ.isJava15: "+IJ.isJava15()+"\n");
        sb.append("  IJ.isJava16: "+IJ.isJava16()+"\n");
        sb.append("  IJ.isLinux: "+IJ.isLinux()+"\n");
        sb.append("  IJ.isMacintosh: "+IJ.isMacintosh()+"\n");
        sb.append("  IJ.isMacOSX: "+IJ.isMacOSX()+"\n");
        sb.append("  IJ.isWindows: "+IJ.isWindows()+"\n");
        sb.append("  IJ.isVista: "+IJ.isVista()+"\n");
        sb.append("  IJ.is64Bit: "+IJ.is64Bit()+"\n");
        sb.append("  Menus.getPlugInsPath: "+Menus.getPlugInsPath()+"\n");
        sb.append("  Menus.getMacrosPath: "+Menus.getMacrosPath()+"\n");
        sb.append("  Prefs.getHomeDir: "+Prefs.getHomeDir()+"\n");
        sb.append("  Prefs.getThreads: "+Prefs.getThreads()+cores());   
        sb.append("  Prefs.open100Percent: "+Prefs.open100Percent+"\n");        
        sb.append("  Prefs.blackBackground: "+Prefs.blackBackground+"\n");      
        sb.append("  Prefs.useJFileChooser: "+Prefs.useJFileChooser+"\n");      
        sb.append("  Prefs.weightedColor: "+Prefs.weightedColor+"\n");      
        sb.append("  Prefs.blackCanvas: "+Prefs.blackCanvas+"\n");      
        sb.append("  Prefs.pointAutoMeasure: "+Prefs.pointAutoMeasure+"\n");        
        sb.append("  Prefs.pointAutoNextSlice: "+Prefs.pointAutoNextSlice+"\n");        
        sb.append("  Prefs.requireControlKey: "+Prefs.requireControlKey+"\n");      
        sb.append("  Prefs.useInvertingLut: "+Prefs.useInvertingLut+"\n");      
        sb.append("  Prefs.antialiasedTools: "+Prefs.antialiasedTools+"\n");        
        sb.append("  Prefs.useInvertingLut: "+Prefs.useInvertingLut+"\n");      
        sb.append("  Prefs.intelByteOrder: "+Prefs.intelByteOrder+"\n");        
        sb.append("  Prefs.doubleBuffer: "+Prefs.doubleBuffer+"\n");        
        sb.append("  Prefs.noPointLabels: "+Prefs.noPointLabels+"\n");      
        sb.append("  Prefs.disableUndo: "+Prefs.disableUndo+"\n");      
        sb.append("  Prefs dir: "+Prefs.getPrefsDir()+"\n");
        sb.append("  Current dir: "+OpenDialog.getDefaultDirectory()+"\n");
        sb.append("  Sample images dir: "+Prefs.getImagesURL()+"\n");
        Dimension d = IJ.getScreenSize();
        sb.append("  Screen size: " + d.width + "x" + d.height+"\n");
        sb.append("  Memory in use: "+IJ.freeMemory()+"\n");    
        if (IJ.altKeyDown())
            doFullDump();
        TextWindow tw = new TextWindow("Properties", new String(sb), 400, 500);
    }
    
    String cores() {
        int cores = Runtime.getRuntime().availableProcessors();
        if (cores==1)
            return " (1 core)\n";
        else
            return " ("+cores+" cores)\n";
    }
    
    void show(String property) {
        String p = System.getProperty(property);
        if (p!=null)
            sb.append("  " + property + ": " + p+"\n");
    }
    
    void doFullDump() {
        sb.append("\n");
        sb.append("All Properties:\n");
        Properties props = System.getProperties();
        for (Enumeration en=props.keys(); en.hasMoreElements();) {
            String key = (String)en.nextElement();
            sb.append("  "+key+": "+(String)props.get(key)+"\n");
        }
    }

}