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package ij.macro;
import ij.*;
import ij.plugin.*;
import ij.plugin.frame.*;
import java.awt.*;
import java.awt.event.*;
import java.util.Hashtable;
import java.util.Arrays;
import java.util.Iterator;
import java.util.ArrayList;
import java.util.Set;
/** This class implements the text editor's Macros/Find Functions command.
It was written by jerome.mutterer at ibmp.fr, and is based on Mark Longair's CommandFinder plugin.
*/
public class FunctionFinder implements TextListener, WindowListener, KeyListener, ItemListener {
Dialog d;
TextField prompt;
List completions;
String [] commands ;
public FunctionFinder() {
String exists = IJ.runMacro("return File.exists(getDirectory('macros')+'functions.html');");
if (exists=="0") {
String installLocalMacroFunctionsFile = "functions = File.openUrlAsString('"+IJ.URL+"/developer/macro/functions.html');\n"+
"f = File.open(getDirectory('macros')+'functions.html');\n"+
"print (f, functions);\n"+
"File.close(f);";
try { IJ.runMacro(installLocalMacroFunctionsFile);
} catch (Throwable e) { IJ.error("Problem downloading functions.html"); return;}
}
String f = IJ.runMacro("return File.openAsString(getDirectory('macros')+'functions.html');");
String [] l = f.split("\n");
commands= new String [l.length];
int c=0;
for (int i=0; i<l.length; i++) {
String line = l[i];
if (line.startsWith("<b>")) {
commands[c]=line.substring(line.indexOf("<b>")+3,line.indexOf("</b>"));
c++;
}
}
if (c==0) {
IJ.error("ImageJ/macros/functions.html is corrupted");
return;
}
ImageJ imageJ = IJ.getInstance();
d = new Dialog(imageJ, "Built-in Functions");
d.setLayout(new BorderLayout());
d.addWindowListener(this);
Panel northPanel = new Panel();
prompt = new TextField("", 30);
prompt.addTextListener(this);
prompt.addKeyListener(this);
northPanel.add(prompt);
d.add(northPanel, BorderLayout.NORTH);
completions = new List(12);
completions.addKeyListener(this);
populateList("");
d.add(completions, BorderLayout.CENTER);
d.pack();
Frame frame = WindowManager.getFrontWindow();
if (frame==null) return;
java.awt.Point posi=frame.getLocationOnScreen();
int initialX = (int)posi.getX() + 38;
int initialY = (int)posi.getY() + 84;
d.setLocation(initialX,initialY);
d.setVisible(true);
d.toFront();
}
public void populateList(String matchingSubstring) {
String substring = matchingSubstring.toLowerCase();
completions.removeAll();
try {
for(int i=0; i<commands.length; ++i) {
String commandName = commands[i];
if (commandName.length()==0)
continue;
String lowerCommandName = commandName.toLowerCase();
if( lowerCommandName.indexOf(substring) >= 0 ) {
completions.add(commands[i]);
}
}
} catch (Exception e){}
}
public void edPaste(String arg) {
Frame frame = WindowManager.getFrontWindow();
try {
TextArea ta = ((Editor)frame).getTextArea();
int start = ta.getSelectionStart( );
int end = ta.getSelectionEnd( );
try {
ta.replaceRange(arg.substring(0,arg.length()), start, end);
} catch (Exception e) { }
if (IJ.isMacOSX())
ta.setCaretPosition(start+arg.length());
} catch (Exception e) { }
}
public void itemStateChanged(ItemEvent ie) {
populateList(prompt.getText());
}
protected void runFromLabel(String listLabel) {
edPaste(listLabel);
d.dispose();
}
public void keyPressed(KeyEvent ke) {
int key = ke.getKeyCode();
int items = completions.getItemCount();
Object source = ke.getSource();
if (source==prompt) {
if (key==KeyEvent.VK_ENTER) {
if (1==items) {
String selected = completions.getItem(0);
runFromLabel(selected);
}
} else if (key==KeyEvent.VK_UP) {
completions.requestFocus();
if(items>0)
completions.select(completions.getItemCount()-1);
} else if (key==KeyEvent.VK_ESCAPE) {
d.dispose();
} else if (key==KeyEvent.VK_DOWN) {
completions.requestFocus();
if (items>0)
completions.select(0);
}
} else if (source==completions) {
if (key==KeyEvent.VK_ENTER) {
String selected = completions.getSelectedItem();
if (selected!=null)
runFromLabel(selected);
}
}
}
public void keyReleased(KeyEvent ke) { }
public void keyTyped(KeyEvent ke) { }
public void textValueChanged(TextEvent te) {
populateList(prompt.getText());
}
public void windowClosing(WindowEvent e) {
d.dispose();
}
public void windowActivated(WindowEvent e) { }
public void windowDeactivated(WindowEvent e) { }
public void windowClosed(WindowEvent e) { }
public void windowOpened(WindowEvent e) { }
public void windowIconified(WindowEvent e) { }
public void windowDeiconified(WindowEvent e) { }
}
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