import java.awt.*; import java.awt.image.BufferedImage; import java.io.IOException; import javax.imageio.ImageIO; public class Instructions extends Panel { private static final Color bgcolor = new Color(255,255,245); public TextField epsilon; private Paint paint; private Image im; private Graphics buf; public Button bupdate; private RectWaveGuide_State state; private BufferedImage bullet; public Instructions(RectWaveGuide_State state){ super(); this.state = state; setLayout(null); getImages(); setBackground(bgcolor); bupdate = new Button("CLOSE"); bupdate.setBackground(new Color(240,240,255)); bupdate.setFont(new Font("SanSerif",Font.PLAIN,state.font12)); add(bupdate); int buttonx = state.s400; int buttony = state.s400; int buttonwide = state.s70; int buttonheight = state.s27; bupdate.setBounds(buttonx,buttony,buttonwide,buttonheight); Panel ps7 = new Panel(); ps7.setBackground(Color.lightGray); add(ps7); ps7.setBounds(buttonx-1,buttony-1,buttonwide+2,buttonheight+2); Panel ps8 = new Panel(); ps8.setBackground(Color.black); add(ps8); ps8.setBounds(buttonx-2,buttony-2,buttonwide+4,buttonheight+4); } private void getImages() { // read in the bullet image, because CHEERPJ does not render this // symbol in any font! (java to javascript converter) try { //bullet = ImageIO.read(getClass().getResource("bullet.png")); BufferedImage img = ImageIO.read(getClass().getResource("bullet.png")); int targetWidth = (int) (state.sfactor * img.getWidth()); int targetHeight = (int) (state.sfactor * img.getHeight()); bullet = new BufferedImage(targetWidth, targetHeight, BufferedImage.TYPE_INT_RGB); Graphics2D graphics2D = bullet.createGraphics(); graphics2D.setRenderingHint(RenderingHints.KEY_INTERPOLATION, RenderingHints.VALUE_INTERPOLATION_BILINEAR); graphics2D.drawImage(img, 0, 0, targetWidth, targetHeight, 0, 0, img.getWidth(), img.getHeight(), null); graphics2D.dispose(); } 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){ FontMetrics fm; Graphics2D g2d = (Graphics2D)g; g2d.setRenderingHint(RenderingHints.KEY_ANTIALIASING, RenderingHints.VALUE_ANTIALIAS_ON); g.clearRect(0,0,getSize().width-1,getSize().height-1); //boolean saveOldFlag = MaestroG.useBiggerFont; //MaestroG.useBiggerFont = false; g.setColor(Color.black); g.setFont(new Font("SanSerif",Font.BOLD,state.font16)); int vpos = state.s25; int hpos = state.s15; int deltaY = state.s25; int deltaY2 = state.s20; int deltaY3 = state.s40; g.drawString("Instructions", hpos,vpos); vpos+=deltaY; g.setFont(new Font("SanSerif",Font.PLAIN,state.font14)); g.drawString("This module provides information about TE and "+ "TM modes in a metal",hpos,vpos); vpos+=deltaY2; g.drawString("rectangular waveguide.",hpos,vpos); vpos+=deltaY; g.setColor(Color.red); g.setFont(new Font("SanSerif",Font.BOLD,state.font15)); g.drawString("Input", hpos,vpos); g.setColor(Color.black); g.setFont(new Font("SanSerif",Font.PLAIN,state.font14)); vpos+=deltaY; //INPUT //String s = "\u2022 Waveguide dimensions a and b"; //int nextX = STR.displayString(s,g,hpos,vpos); g.drawImage(bullet,hpos,vpos-bullet.getHeight(),this); String s = " Waveguide dimensions a and b"; int nextX = STR.displayString(s,g,hpos+bullet.getWidth(),vpos); vpos+=deltaY; //s = "\u2022 TE or TM mode"; //next = STR.displayString(s,g,hpos,vpos); g.drawImage(bullet,hpos,vpos-bullet.getHeight(),this); s = " TE or TM mode"; nextX = STR.displayString(s,g,hpos+bullet.getWidth(),vpos); vpos+=deltaY; //s = "\u2022 frequency f"; //nextX = STR.displayString(s,g,state.s15,vpos); g.drawImage(bullet,hpos,vpos-bullet.getHeight(),this); s = " frequency f"; nextX = STR.displayString(s,g,hpos+bullet.getWidth(),vpos); vpos+=deltaY; //s = "\u2022 \u03b5"+STR.SUB+"r"+STR.ENDSUB+" of dielectric material"; //nextX = STR.displayString(s,g,state.s15,vpos); g.drawImage(bullet,hpos,vpos-bullet.getHeight(),this); s = " \u03b5"+STR.SUB+"r"+STR.ENDSUB+" of dielectric material"; nextX = STR.displayString(s,g,hpos+bullet.getWidth(),vpos); //OUTPUT g.setColor(Color.red); g.setFont(new Font("SanSerif",Font.BOLD,state.font15)); vpos+=deltaY; g.drawString("Displayed Information", hpos,vpos); g.setColor(Color.black); g.setFont(new Font("SanSerif",Font.PLAIN,state.font14)); vpos+=deltaY; //s = "\u2022 Cutoff frequencies of TE and TM modes"; //nextX = STR.displayString(s,g,hpos,vpos); g.drawImage(bullet,hpos,vpos-bullet.getHeight(),this); s = " Cutoff frequencies of TE and TM modes"; nextX = STR.displayString(s,g,hpos+bullet.getWidth(),vpos); vpos+=deltaY; //s = "\u2022 Spatial distribution of "+STR.BOLD+"E"+STR.ENDBOLD+" for "+ // "TE modes and "+STR.BOLD+"H"+STR.ENDBOLD+" for TM modes"; //nextX = STR.displayString(s,g,hpos,vpos); g.drawImage(bullet,hpos,vpos-bullet.getHeight(),this); s = " Spatial distribution of "+STR.BOLD+"E"+STR.ENDBOLD+" for "+ "TE modes and "+STR.BOLD+"H"+STR.ENDBOLD+" for TM modes"; nextX = STR.displayString(s,g,hpos+bullet.getWidth(),vpos); vpos+=deltaY; //s = "\u2022 Phase and group velocities"; //nextX = STR.displayString(s,g,hpos,vpos); g.drawImage(bullet,hpos,vpos-bullet.getHeight(),this); s = " Phase and group velocities"; nextX = STR.displayString(s,g,hpos+bullet.getWidth(),vpos); g.setFont(new Font("SanSerif",Font.PLAIN,state.font12)); vpos+=deltaY+10; s = "The Mode Spectrum panel only displays cutoff frequencies of lower order modes."; nextX = STR.displayString(s,g,hpos,vpos); vpos+=deltaY2; s = "Use Mode Selector to scan higher order modes in the Mode Properties panel."; nextX = STR.displayString(s,g,hpos,vpos); vpos+=deltaY2; s = ""; nextX = STR.displayString(s,g,hpos,vpos); drawCopyRight(g); //MaestroG.subscripter("Higher order modes are listed in the Mode Properties panel ( use Mode Selector to scan modes )","","",g,10,20, getSize().height-10); //MaestroG.useBiggerFont = saveOldFlag; } public void drawCopyRight(Graphics g) { int deltaY = state.s20; int startingY = getSize().height - state.s70; int startingX = 0; FontMetrics fm; g.setColor(Color.black); g.setColor(Color.black); g.setFont(new Font("SanSerif",Font.PLAIN,state.s12)); fm = g.getFontMetrics(); g.drawString(" Application Design: Umberto Ravaioli", startingX,startingY+deltaY); String s = " Interactive Java"+STR.SUP+"TM"+STR.ENDSUP+ " platform: www.amanogawa.com"; int nextX = STR.displayString(s,g,startingX,startingY+2*deltaY); int lineLength = fm.stringWidth("Interactive JavaTM platform: www.amanogawa.com"); lineLength+= state.s10; g.drawString(" All Rights Reserved",startingX,startingY+3*deltaY); g.drawLine(startingX,startingY + state.s5, startingX+lineLength + state.s10,startingY + state.s5); g.drawLine(startingX+lineLength + state.s10,startingY + state.s5, startingX+lineLength + state.s10,startingY+4*deltaY); } //---------------------------------------------------------------------------------------- }//End