import java.io.*; import java.awt.*; import java.awt.event.*; import java.awt.font.*; import java.net.URL; import java.text.*; import java.util.Map; import java.util.Hashtable; import java.util.jar.Attributes; //import javax.swing.*; // Chapter 4 Module 1 public class Mod3 extends Frame implements AdjustmentListener, ItemListener, ActionListener, MouseListener, MouseMotionListener, TextListener, WindowListener { TitlePanel titlePanel; Instructions instructions; //Mod3Choice choicePanel; Mod3Input inputPanel; // Polar to rectangular Mod3State state; Mod3Plot plotPanel; Font ttfFont, phiFont, italicFont; private static final boolean useOldFonts = true; public void start() { } public void stop(){} public void destroy(){} public static void main(String[] args){ Mod3 f = new Mod3(); int xmove = 20; int ymove = 41; f.setSize(1065+xmove,660+ymove); f.setVisible(true); f.setLayout(null); } public Mod3() { setLayout(null); String lcOSName = System.getProperty("os.name").toLowerCase(); boolean MAC_OS_X = lcOSName.startsWith("mac os x"); boolean PC_OS = lcOSName.startsWith("windows"); //System.out.println(lcOSName); TheFonts.setMAC_OS_X(MAC_OS_X); TheFonts.setPC_OS(PC_OS); if (!useOldFonts) { //getUlabyFonts(); state = new Mod3State(); state.ttfFont = ttfFont; state.sanSerifFont = ttfFont; state.serifFont = ttfFont; state.symbolFont = phiFont; state.italicFont = phiFont; TheFonts.setNewFonts(ttfFont, phiFont, italicFont); } else { state = new Mod3State(); state.ttfFont = new Font("SanSerif",Font.PLAIN,12); state.sanSerifFont = new Font("SanSerif",Font.PLAIN,12); state.serifFont = new Font("Serif",Font.PLAIN,12); state.symbolFont = new Font("Symbol",Font.PLAIN,12); state.italicFont = new Font("Serif",Font.ITALIC,12); TheFonts.setOldFonts(); } int xmove = 10; int ymove = 34; instructions = new Instructions(state); instructions.setBounds(420+xmove,58+ymove,635,581); //instructions.setVisible(false); // Get focus off any visible component ... looks nicer. Panel nullPanel = new Panel(); Button nullButton = new Button(); nullPanel.add(nullButton); nullPanel.setVisible(false); titlePanel = new TitlePanel(state.ttfFont.deriveFont(Font.BOLD,15f), "Module 4.4","Charges near "+ "Conducting Sphere"); titlePanel.setBounds(10+xmove,10+ymove,400,40); //choicePanel = new Mod3Choice(state); Panel choicePanel = new Panel(); choicePanel.setBackground(Color.gray.brighter()); choicePanel.setBounds(418+xmove,11+ymove,637,38); inputPanel = new Mod3Input(state); inputPanel.setBounds(14+xmove,59+ymove,394,579); plotPanel = new Mod3Plot(state); plotPanel.setBounds(420+xmove,58+ymove,635,581); plotPanel.setVisible(true); // backpanels for input, and plot ////plotPanel.setBounds(12,58,635,581); Panel p_p_b = new Panel(); p_p_b.setBackground(Color.black); p_p_b.setBounds(419+xmove,57+ymove,637,583); ////inputPanel.setBounds(658,59,320,579); Panel p_i_w = new Panel(); p_i_w.setBackground(Color.white); p_i_w.setBounds(13+xmove,58+ymove,396,581); Panel p_i_b = new Panel(); p_i_b.setBackground(Color.black); p_i_b.setBounds(12+xmove,57+ymove,398,583); //backpanels for applet Panel p0 = new Panel(); p0.setBackground(Color.cyan); p0.setBounds(3+xmove,3+ymove,1059,643); Panel p00 = new Panel(); p00.setBackground(Color.black); p00.setBounds(xmove,ymove,1065,649); add(nullPanel); add(choicePanel); add(titlePanel); add(inputPanel); add(instructions); add(plotPanel); add(p_i_w); add(p_i_b); add(p_p_b); inputPanel.initialize(); plotPanel.initialPlot(); add(p0); add(p00); //Listeners this.addWindowListener(this); inputPanel.reset.addActionListener(this); inputPanel.ch2.addItemListener(this); inputPanel.ch3.addItemListener(this); inputPanel.ch4.addItemListener(this); inputPanel.ch5.addItemListener(this); inputPanel.ch6.addItemListener(this); inputPanel.ch01.addItemListener(this); inputPanel.ch02.addItemListener(this); inputPanel.ch03.addItemListener(this); inputPanel.ch04.addItemListener(this); inputPanel.sliderc.addAdjustmentListener(this); inputPanel.sliderdv.addAdjustmentListener(this); inputPanel.textc.addActionListener(this); plotPanel.textRadius.addTextListener(this); plotPanel.addMouseListener(this); plotPanel.addMouseMotionListener(this); plotPanel.small.addActionListener(this); plotPanel.swap.addActionListener(this); instructions.closeIt.addActionListener(this); nullButton.requestFocus(); } /* private void getUlabyFonts() { String path1 = getCodeBase().getPath() + "times.ttf"; String path2 = getCodeBase().getPath() + "palai.ttf"; String path3 = getCodeBase().getPath() + "timesi.ttf"; try { // SWAP COMMENT TO OTHER fi= STATEMENT WHEN FINAL VERSION OK // TO RUN ON THE BROWSER (use the other one when debugging ...) //File fi = new File ("/home/jar/newcd/fonts/times.ttf"); File fi = new File (path1); FileInputStream in = new FileInputStream (fi); ttfFont = Font.createFont (Font.TRUETYPE_FONT, in); //fi = new File ("/home/jar/newcd/fonts/palai.ttf"); fi = new File (path2); in = new FileInputStream (fi); phiFont = Font.createFont (Font.TRUETYPE_FONT, in); phiFont = phiFont.deriveFont (14f); // SAVE fi = new File (path3); in = new FileInputStream (fi); italicFont = Font.createFont (Font.TRUETYPE_FONT, in); } catch (Exception e) { e.printStackTrace(); } } */ public void paint(Graphics g){ Graphics2D g2d = (Graphics2D)g; g.setColor(Color.white); g.fillRect(0,0,626,585); g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); g.setColor(Color.magenta); g.fillRect(13,495,492,50); } public void windowClosing(WindowEvent e) { dispose(); System.exit(0); } public void windowOpened(WindowEvent evt){} public void windowIconified(WindowEvent evt){} public void windowClosed(WindowEvent evt){} public void windowDeiconified(WindowEvent evt){} public void windowActivated(WindowEvent evt){} public void windowDeactivated(WindowEvent evt){} public void mouseDragged(MouseEvent evt){mouseDragging(evt);} public void mouseMoved(MouseEvent evt){mouseMoving(evt);} public void mouseClicked(MouseEvent evt){;}//dbl: also when mousePressed public void mouseEntered(MouseEvent evt){;} public void mouseExited(MouseEvent evt){;} public void mousePressed(MouseEvent evt){mActionDone(evt);} // user must press, drag, and release to move a charge public void mouseReleased(MouseEvent evt){ if (state.currentAction == Mod3State.moveCharge) { state.moveToPoint = evt.getPoint(); plotPanel.moveCharge(); plotPanel.drawPlot(); } } // mouse dragged private void mouseDragging(MouseEvent evt) { if (state.currentAction == Mod3State.moveCharge) { state.moveToPoint = evt.getPoint(); if (plotPanel.moveCharge()) { state.moveFromPoint = state.moveToPoint; plotPanel.drawPlot(); } } } // mouse moved private void mouseMoving(MouseEvent evt) { if (state.currentAction == Mod3State.showVoltageAtCursor) { plotPanel.getVoltageAtCursor(evt.getPoint()); inputPanel.showVoltageAtCursor(); } } // mouse pressed or clicked private void mActionDone(MouseEvent evt) { switch (state.currentAction) { case (Mod3State.placeCharge): plotPanel.placeCharge(evt.getPoint()); plotPanel.drawPlot(); break; case (Mod3State.removeCharge): plotPanel.removeCharge(evt.getPoint()); plotPanel.drawPlot(); break; case (Mod3State.moveCharge): state.moveFromPoint = evt.getPoint(); break; case (Mod3State.showVoltageAtCursor): plotPanel.getVoltageAtCursor(evt.getPoint()); // sets state var inputPanel.showVoltageAtCursor(); // displays the state var break; case (Mod3State.changeChargeValue): state.highlightedPoint = new Point(evt.getPoint()); //plotPanel.changeCharge(evt.getPoint()); //plotPanel.drawPlot(); break; default: break; } } public void textValueChanged(TextEvent evt) { if (evt.getSource()==plotPanel.textRadius) { plotPanel.readTextUpdateSlider(); } } public void actionPerformed(ActionEvent evt){ if (evt.getSource()==instructions.closeIt) { instructions.setVisible(false); plotPanel.setVisible(true); } else if (evt.getSource()==plotPanel.small) { instructions.setVisible(true); plotPanel.setVisible(false); } else if (evt.getSource()==plotPanel.swap) { if (state.currentPlotType == state.plotWithGroundSphere) { state.currentPlotType = state.plotWithoutGroundSphere; inputPanel.disablePlotStuff(); plotPanel.swap.setLabel(plotPanel.swapLabel2); } else { state.currentPlotType = state.plotWithGroundSphere; inputPanel.enablePlotStuff(); plotPanel.swap.setLabel(plotPanel.swapLabel1); } plotPanel.drawPlot(); //*********** } else if(evt.getSource()==inputPanel.reset){ inputPanel.reset(); // reset #equi-pot-lines slider plotPanel.reset(); plotPanel.drawPlot(); } else if (evt.getSource()==inputPanel.textc) { inputPanel.readTextUpdateSlider(); if (state.currentAction == Mod3State.changeChargeValue && state.highlightedPoint != null) { Point pt = new Point(state.highlightedPoint); plotPanel.changeCharge(pt); plotPanel.drawPlot(); } } } public void adjustmentValueChanged(AdjustmentEvent evt){ //String eventInfo = evt.paramString(); //if (eventInfo.indexOf("isAdjusting=true") != -1) return; if(evt.getSource()==inputPanel.sliderdv){ if (plotPanel.changeDeltaV(state.deltaV)) plotPanel.drawPlot(); } else if (evt.getSource()==inputPanel.sliderc) { if (state.currentAction == Mod3State.changeChargeValue && state.highlightedPoint != null) { Point pt = new Point(state.highlightedPoint); plotPanel.changeCharge(pt); plotPanel.drawPlot(); } } } public void itemStateChanged(ItemEvent evt){ // NOTE: do all this extra stuff when switching from cartesian <-> // cylindrical, because user may have changed text entries w/o // pressing or button. // Some input panel choice was changed; clear out the input panel // display voltage/efield text areas: inputPanel.clearShowVoltageStuff(); if (evt.getSource() == inputPanel.ch2) { state.highlightedPoint = (Point)null; state.currentAction = state.placeCharge; } else if (evt.getSource() == inputPanel.ch3) { state.currentAction = state.changeChargeValue; } else if (evt.getSource() == inputPanel.ch4) { state.highlightedPoint = (Point)null; state.currentAction = state.removeCharge; } else if (evt.getSource() == inputPanel.ch5) { state.highlightedPoint = (Point)null; state.currentAction = state.moveCharge; } else if (evt.getSource() == inputPanel.ch6) { state.highlightedPoint = (Point)null; state.currentAction = state.showVoltageAtCursor; } else if (evt.getSource() == inputPanel.ch01) { state.displayPotentialField = inputPanel.ch01.getState(); plotPanel.drawPlot(); } else if (evt.getSource() == inputPanel.ch02) { state.displayElectricField = inputPanel.ch02.getState(); plotPanel.drawPlot(); } else if (evt.getSource() == inputPanel.ch03) { state.displayChargeDensity = inputPanel.ch03.getState(); plotPanel.drawPlot(); } else if (evt.getSource() == inputPanel.ch04) { state.displayEquiPotentialLines = inputPanel.ch04.getState(); plotPanel.drawPlot(); } } }