import java.awt.*; import java.awt.event.*; import java.awt.font.*; import java.lang.*; import java.awt.image.*; import java.net.*; import java.text.*; import java.awt.image.BufferedImage; import java.io.IOException; import javax.imageio.ImageIO; //import java.util.Map; //import java.util.Hashtable; //import java.util.jar.Attributes; // Chapter 3 Module 3 public class Mod4Info extends Panel { private static final Color bgcolor = new Color(236,236,236); //private static final Color bgcolor = Color.white; private Label titlelabel; Mod4State state; String s = null; int endingX; DecimalFormat dec = new DecimalFormat("#.#"); //DecimalFormat decTheta = new DecimalFormat("###.###"); static double piOver180 = Math.PI/180.0; public NewOutputCanvas2 outInfo; public Mod4Info(Mod4State state) { super(); setBackground(bgcolor); setLayout(null); this.state = state; titlelabel = new Label("Output",Label.CENTER); //titlelabel.setFont(TheFonts.bold14); titlelabel.setFont(TheFonts.bold16); add(titlelabel); titlelabel.setBounds(15,5,70,18); titlelabel.setBackground(bgcolor); outInfo = new NewOutputCanvas2(state); add(outInfo); // total width = 285, height = 257 ////infoPanel.setBounds(517,469,450,128); //outInfo.setBounds(0,24,285,233); //outInfo.setBounds(4,24,285,100); outInfo.setBounds(4,24,400,100); } public void displayCurl() { // 1. also need to check for FIRST param w/ coeff1 = -1 ... // so just set s = "-sin..." or "-x ..." or "-e ..." // 2. FIX slider so only goes up or down by .1 instead of .001!!!! boolean anyFirstTerm = true; state.sOutput = " "; //s = STR.ZHAT+"z"+STR.ENDZHAT+STR.BOLD+"("+STR.ENDBOLD; switch(state.currentFunction) { case Mod4State.polynomial: if (state.coeff1 == 0) { anyFirstTerm = false; s = ""; // No 1st term } else if (Math.abs(state.coeff1) == 1.0) { if (state.coeff1 == -1.0) s = STR.BOLD+"-"+STR.ENDBOLD; if (state.exp1 == 0) { s = STR.BOLD+"1"+STR.ENDBOLD; //x**0 = 1 } else { s = STR.BOLD+"x"+STR.ENDBOLD; if (state.exp1 != 1.0) s += STR.SUP+dec.format(state.exp1)+STR.ENDSUP; } } else { if (state.exp1 == 0) { // x**0 = 1 s = STR.BOLD+dec.format(state.coeff1)+STR.ENDBOLD; } else { s = STR.BOLD+dec.format(state.coeff1)+"x"+STR.ENDBOLD; if (state.exp1 != 1.0) s += STR.SUP+dec.format(state.exp1)+STR.ENDSUP+" "; } } if (state.coeff2 == 0) { // NO 2nd term } else if (Math.abs(state.coeff2) == 1.0) { if (state.coeff2 == -1) s += STR.BOLD+" -"+STR.ENDBOLD; else s += STR.BOLD+" +"+STR.ENDBOLD; if (anyFirstTerm) s += " "; if (state.exp2 == 0) { //y**0 = 1 s += STR.BOLD+"1"+STR.ENDBOLD; } else { s += STR.BOLD+"y"+STR.ENDBOLD; if (state.exp2 != 1.0) s += STR.SUP+dec.format(state.exp2)+STR.ENDSUP; } } else { if (state.exp2 == 0) { if (state.coeff2 < 0) s += STR.BOLD+" -"+STR.ENDBOLD; else s += STR.BOLD+" +"+STR.ENDBOLD; if (anyFirstTerm) s += " "; s += STR.BOLD+dec.format(Math.abs(state.coeff2))+ STR.ENDBOLD; // y**0 = 1 } else { if (state.coeff2 < 0) s += STR.BOLD+" -"+STR.ENDBOLD; else s += STR.BOLD+" +"+STR.ENDBOLD; if (anyFirstTerm) s += " "; s += STR.BOLD+dec.format(Math.abs(state.coeff2))+"y"+ STR.ENDBOLD; if (state.exp2 != 1.0) s += STR.SUP+dec.format(state.exp2)+STR.ENDSUP; } } break; case Mod4State.exponential: if (state.coeff1 == 0) { anyFirstTerm = false; s = ""; } else if (Math.abs(state.coeff1) == 1.0) { if (state.coeff1 == -1.0) s = STR.BOLD+"-"+STR.ENDBOLD; if (state.exp1 == 0) { s = STR.BOLD+"1"+STR.ENDBOLD; //e**0 = 1 } else { s = STR.BOLD+"e"+STR.ENDBOLD; if (state.exp1 == 1.0) s += STR.SUP+"x"+STR.ENDSUP; else s += STR.SUP+dec.format(state.exp1)+"x"+STR.ENDSUP; } } else { if (state.exp1 == 0) { s = STR.BOLD+dec.format(state.coeff1)+STR.ENDBOLD;//e**0=1 } else { s = STR.BOLD+dec.format(state.coeff1)+"e"+STR.ENDBOLD; if (state.exp1 == 1.0) s += STR.SUP+"x"+STR.ENDSUP; else s += STR.SUP+dec.format(state.exp1)+"x"+STR.ENDSUP; } } if (state.coeff2 == 0) { // NO 2nd term !! } else if (Math.abs(state.coeff2) == 1.0) { if (state.coeff2 == -1) s += STR.BOLD+" -"+STR.ENDBOLD; else s += STR.BOLD+" +"+STR.ENDBOLD; if (anyFirstTerm) s += " "; if (state.exp2 == 0) { s += STR.BOLD+"1"+STR.ENDBOLD; //e**0 = 1 } else { s += STR.BOLD+"e"+STR.ENDBOLD; if (state.exp2 == 1.0) s += STR.SUP+"y"+STR.ENDSUP; else s += STR.SUP+dec.format(state.exp2)+"y"+STR.ENDSUP; } } else { if (state.exp2 == 0) { if (state.coeff2 < 0) s += STR.BOLD+" -"+STR.ENDBOLD; else s += STR.BOLD+" +"+STR.ENDBOLD; if (anyFirstTerm) s += " "; s += STR.BOLD+dec.format(Math.abs(state.coeff2))+ STR.ENDBOLD; //e**0 = 1 } else { if (state.coeff2 < 0) s += STR.BOLD+" -"+STR.ENDBOLD; else s += STR.BOLD+" +"+STR.ENDBOLD; if (anyFirstTerm) s += " "; s += STR.BOLD+dec.format(Math.abs(state.coeff2))+"e"+ STR.ENDBOLD; if (state.exp2 == 1.0) s += STR.SUP+"y"+STR.ENDSUP; else s += STR.SUP+dec.format(state.exp2)+"y"+STR.ENDSUP; } } break; // // f = xHat acos(my) + yHat bsin(nx) // DXf = zHat(bncos(nx) + amsin(my)) // coeff1 = bn coeff2 = n coeff3 = am coeff4 = m // case Mod4State.sinusoidal: if (state.coeff1 == 0) { anyFirstTerm = false; s = ""; } else if (Math.abs(state.coeff1) == 1.0) { if (state.coeff2 == 0) { // Since cos(0) is 1: s = STR.BOLD+"1"+STR.ENDBOLD; } else { if (state.coeff1 == -1.0) s = STR.BOLD+"-"+STR.ENDBOLD; s = STR.BOLD+"cos("+STR.ENDBOLD; if (state.coeff2 == 1.0) s += STR.BOLD+"x)"+STR.ENDBOLD; else s += STR.BOLD+dec.format(state.coeff2)+"x)"+ STR.ENDBOLD; } } else { if (state.coeff2 == 0) { // Since cos(0) is 1: s = STR.BOLD+dec.format(state.coeff1)+STR.ENDBOLD; } else { s = STR.BOLD+dec.format(state.coeff1); if (state.coeff2 == 1.0) s += "cos(x)"+STR.ENDBOLD; else s += "cos("+dec.format(state.coeff2)+"x)"+STR.ENDBOLD; } } if (state.coeff3 == 0) { // No 2nd term } else if (Math.abs(state.coeff3) == 1.0) { if (state.coeff3 == -1) s += STR.BOLD+" -"+STR.ENDBOLD; else s += STR.BOLD+" +"+STR.ENDBOLD; if (anyFirstTerm) s += " "; if (state.coeff4 == 0) { // NOT possible - coeff3 also =0 // since sin(0) is 0: s += ""; } else { s += STR.BOLD+"sin("; if (state.coeff4 == 1.0) s += "y)"+STR.ENDBOLD; else s += dec.format(state.coeff4)+"y)"+STR.ENDBOLD; } } else { // Since sin(0) is 0: if (state.coeff4 != 0) { if (state.coeff3 < 0) s += STR.BOLD+" -"+STR.ENDBOLD; else s += STR.BOLD+" +"+STR.ENDBOLD; if (anyFirstTerm) s += " "; s += STR.BOLD+dec.format(Math.abs(state.coeff3)); if (state.coeff4 == 1.0) s += "sin(y)"+STR.ENDBOLD; else s += "sin("+dec.format(state.coeff4)+"y)"+STR.ENDBOLD; } } } if (s.length() == 0) s = STR.BOLD+"0"+STR.ENDBOLD; // Peel off preceding character because CHEERPJ doesn't render // it. Later, will write 'nabla' image in front of sOutput /* state.sOutput = STR.PLUS2FONT+ Character.toString((char)0x2207)+STR.ENDPLUS2FONT+STR.MULT+ Character.toString((char)0x00D7)+STR.ENDMULT+ STR.BOLDITAL+"f"+STR.ENDBOLDITAL+" = "+ STR.ZHAT+"z"+STR.ENDZHAT+STR.BOLD+"("+STR.ENDBOLD + s + STR.BOLD+")"+STR.ENDBOLD; */ state.sOutput = STR.MULT+ Character.toString((char)0x00D7)+STR.ENDMULT+ STR.BOLDITAL+"f"+STR.ENDBOLDITAL+" = "+ STR.ZHAT+"z"+STR.ENDZHAT+STR.BOLD+"("+STR.ENDBOLD + s + STR.BOLD+")"+STR.ENDBOLD; outInfo.repaint(); } public void paint(Graphics g){ g.setColor(bgcolor.darker()); g.fillRect(0,getSize().height-2,getSize().width,2); g.fillRect(getSize().width-2,0,2,getSize().height); g.setColor(bgcolor.brighter()); g.fillRect(0,0,2,getSize().height-1); g.fillRect(0,0,getSize().width-2,2); } } class NewOutputCanvas2 extends Canvas{ private static Font normalfont; private static Font subfont; private static Font boldfont; Mod4State state; private int endingX; private Image im; private Graphics buf; private BufferedImage nabla; public NewOutputCanvas2(Mod4State state){ super(); this.state = state; normalfont = state.sanSerifFont.deriveFont(12f); subfont = state.sanSerifFont.deriveFont(10f); boldfont = TheFonts.bold14; getImages(); } private void getImages() { // read in the nabla images, because CHEERPJ does not render this // symbol in any font! (java to javascript converter) try { nabla = ImageIO.read(getClass().getResource("nabla.png")); } catch (IOException e) { e.printStackTrace(); } } public void paint(Graphics g){ if(im == null){ im = createImage(getSize().width,getSize().height); buf = im.getGraphics(); drawCanvas(buf); } else{ drawCanvas(buf); } g.drawImage(im,0,0,null); } //Addition to reduce flicker new routine public void update(Graphics g){ // added to avoid clearing paint(g); } public void clear(){ this.getGraphics().clearRect(0,0,getSize().width,getSize().height); repaint(); } public void drawCanvas(Graphics g){ Graphics2D g2d = (Graphics2D)g; g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING,RenderingHints.VALUE_ANTIALIAS_ON); //g.setFont(state.ttfFont.deriveFont(14f)); Color bgcolor = new Color(236,236,236); g.setColor(bgcolor); g.fillRect(0,0,getSize().width-6,getSize().height-6); g.setColor(Color.black); if (state.sOutput != null) { //g.setFont(TheFonts.sanSerif14); g.setFont(boldfont); //endingX = STR.displayString(state.sOutput,g,16,40); // NEW: replacing above line, d/t CHEEPJ problems with spec. chars // (image goes -13 pixels on y-axis) g.drawImage(nabla,16,27,this); endingX = STR.displayString(state.sOutput,g,31,40); } } }