import java.awt.*; import java.awt.event.*; public class eutocodegraphics extends java.applet.Applet implements ActionListener // Software written by William Overington // WOverington@ngo.globalnet.co.uk // 12 December 2002 // Also the additions of 14 December 2002 for polygons // Also the additions of 14 December 2002 for colour 16 // Copyright 2002 William Overington // // This software is an applet which is for demonstrating the use of // eutocode graphics { int obeycode=1; Button go1Button = new Button("draw"); Button go2Button = new Button("clear"); TextField text1TextField = new TextField(80); String text1=""; char eutocode='?'; // Start of the declarations for the eutocode engine // int eutocode_engine_A=0; // int eutocode_engine_X1L=0; int eutocode_engine_Y1L=0; int eutocode_engine_X2L=0; int eutocode_engine_Y2L=0; // int eutocode_engine_X1H=0; int eutocode_engine_Y1H=0; int eutocode_engine_X2H=0; int eutocode_engine_Y2H=0; // int eutocode_engine_X1=0; int eutocode_engine_Y1=0; int eutocode_engine_X2=0; int eutocode_engine_Y2=0; // int eutocode_engine_COLOUR=0; // // Start of the additions of 14 December 2002 for polygons // int eutocode_engine_POLYGON_POINTER=0; int[] eutocode_engine_POLYGON_XL= new int[101]; int[] eutocode_engine_POLYGON_YL= new int[101]; int[] eutocode_engine_POLYGON_XH= new int[101]; int[] eutocode_engine_POLYGON_YH= new int[101]; int[] eutocode_engine_POLYGON_X= new int[101]; int[] eutocode_engine_POLYGON_Y= new int[101]; int eutocode_engine_POLYGON_SIDES=0; // // End of the additions of 14 December 2002 for polygons // // Start of the additions of 14 December 2002 for colour 16 // int eutocode_engine_COLOUR16_RED_COMPONENT=0; int eutocode_engine_COLOUR16_GREEN_COMPONENT=0; int eutocode_engine_COLOUR16_BLUE_COMPONENT=0; // // End of the additions of 14 December 2002 for colour 16 // // End of the declarations for the eutocode engine // Start of the declarations for the additional colours Color brown = new Color(255,102, 0); Color lavender = new Color(204,153,204); Color mint = new Color(204,255,204); // End of the declarations for the additional colours public void init() { setLayout(null); setBounds(0,0,720,576); go1Button.addActionListener(this); go1Button.setLocation(530,200); go1Button.setSize(110,30); add(go1Button); go2Button.addActionListener(this); go2Button.setLocation(530,250); go2Button.setSize(110,30); add(go2Button); text1TextField.setLocation(530,150); text1TextField.setSize(110,20); add(text1TextField); setBackground(Color.white); Font typeface = new Font("Arial", Font.PLAIN, 12); setFont(typeface); text1TextField.setText(" "); obeycode=1; // Start of the additions of 14 December 2002 for polygons for(int i=0;i <= 100;i++) { eutocode_engine_POLYGON_XL[i]=0; eutocode_engine_POLYGON_YL[i]=0; eutocode_engine_POLYGON_XH[i]=0; eutocode_engine_POLYGON_YH[i]=0; eutocode_engine_POLYGON_X[i]=0; eutocode_engine_POLYGON_Y[i]=0; } // End of the additions of 14 December 2002 for polygons } public void actionPerformed(ActionEvent event) { Object source = event.getSource(); if (source == go1Button) { obeycode=51; repaint(); } if (source == go2Button) { obeycode=52; repaint(); } } public void paint(Graphics screen) { screen.setColor(Color.black); if(obeycode == 51) { text1=text1TextField.getText(); int length=text1.length(); if(length > 0) { for(int i=0;i < length;i++) { char c; c=text1.charAt(i); eutocode=c; process(screen,eutocode); } } text1TextField.setText("*"); } else if(obeycode == 52) { screen.setColor(Color.white); screen.fillRect(0,0,720,576); } } public void update(Graphics screen) { paint(screen); } private void process(Graphics screen, char eutocode) { char c; c=eutocode; // if((c >= '\uEC00') & (c <= '\uEFFF')) { int n; n=((int) c) - ((int) '\uEC00'); eutocode_engine_A=n; } else if(c == '\uEB00') { eutocode_engine_X1L=eutocode_engine_A; eutocode_engine_X1=1024*eutocode_engine_X1H + eutocode_engine_X1L; } else if(c == '\uEB01') { eutocode_engine_Y1L=eutocode_engine_A; eutocode_engine_Y1=1024*eutocode_engine_Y1H + eutocode_engine_Y1L; } else if(c == '\uEB02') { eutocode_engine_X2L=eutocode_engine_A; eutocode_engine_X2=1024*eutocode_engine_X2H + eutocode_engine_X2L; } else if(c == '\uEB03') { eutocode_engine_Y2L=eutocode_engine_A; eutocode_engine_Y2=1024*eutocode_engine_Y2H + eutocode_engine_Y2L; } else if(c == '\uEB20') { eutocode_engine_COLOUR=eutocode_engine_A; screen.setColor(Color.yellow); switch(eutocode_engine_COLOUR) { case 0: screen.setColor(Color.black); break; case 1: screen.setColor(brown); break; case 2: screen.setColor(Color.red); break; case 3: screen.setColor(Color.orange); break; case 4: screen.setColor(Color.yellow); break; case 5: screen.setColor(Color.green); break; case 6: screen.setColor(Color.blue); break; case 7: screen.setColor(Color.magenta); break; case 8: screen.setColor(Color.gray); break; case 9: screen.setColor(Color.white); break; case 10: screen.setColor(Color.cyan); break; case 11: screen.setColor(Color.pink); break; case 12: screen.setColor(Color.darkGray); break; case 13: screen.setColor(Color.lightGray); break; case 14: screen.setColor(lavender); break; case 15: screen.setColor(mint); break; default: screen.setColor(Color.black); } // Start of the additions of 14 December 2002 for colour 16 if(eutocode_engine_COLOUR == 16) { Color colour16=new Color(eutocode_engine_COLOUR16_RED_COMPONENT, eutocode_engine_COLOUR16_GREEN_COMPONENT, eutocode_engine_COLOUR16_BLUE_COMPONENT); screen.setColor(colour16); } // End of the additions of 14 December 2002 for colour 16 } // Start of the additions of 14 December 2002 for colour 16 else if(c == '\uEB21') { eutocode_engine_COLOUR16_RED_COMPONENT=eutocode_engine_A; } else if(c == '\uEB22') { eutocode_engine_COLOUR16_GREEN_COMPONENT=eutocode_engine_A; } else if(c == '\uEB23') { eutocode_engine_COLOUR16_BLUE_COMPONENT=eutocode_engine_A; } // End of the additions of 14 December 2002 for colour 16 else if(c == '\uEB40') { screen.drawLine(eutocode_engine_X1,eutocode_engine_Y1, eutocode_engine_X2,eutocode_engine_Y2); } else if(c == '\uEB41') { screen.drawRect(eutocode_engine_X1,eutocode_engine_Y1, eutocode_engine_X2,eutocode_engine_Y2); } else if(c == '\uEB42') { screen.fillRect(eutocode_engine_X1,eutocode_engine_Y1, eutocode_engine_X2,eutocode_engine_Y2); } else if(c == '\uEB43') { screen.drawOval(eutocode_engine_X1,eutocode_engine_Y1, eutocode_engine_X2,eutocode_engine_Y2); } else if(c == '\uEB44') { screen.fillOval(eutocode_engine_X1,eutocode_engine_Y1, eutocode_engine_X2,eutocode_engine_Y2); } // Start of the additions of 14 December 2002 for polygons else if(c == '\uEB30') // Set this pointer before entering the data for a polygon. { eutocode_engine_POLYGON_POINTER=0; } else if(c == '\uEB31') // Use this after all of the data for a polygon point has been added, data for the first point // is entered with the pointer value at 0; the pointer is incremented so as to be // in a steady state when ready to receive an extra point. { eutocode_engine_POLYGON_POINTER++; } else if(c == '\uEB10') // sets an X data value for a polygon point with a new XL value { eutocode_engine_POLYGON_XL[eutocode_engine_POLYGON_POINTER]=eutocode_engine_A; // eutocode_engine_POLYGON_X[eutocode_engine_POLYGON_POINTER]= 1024*eutocode_engine_POLYGON_XH[eutocode_engine_POLYGON_POINTER]+ eutocode_engine_POLYGON_XL[eutocode_engine_POLYGON_POINTER]; } else if(c == '\uEB11') // sets a Y data value for a polygon point with a new YL value { eutocode_engine_POLYGON_YL[eutocode_engine_POLYGON_POINTER]=eutocode_engine_A; // eutocode_engine_POLYGON_Y[eutocode_engine_POLYGON_POINTER]= 1024*eutocode_engine_POLYGON_YH[eutocode_engine_POLYGON_POINTER]+ eutocode_engine_POLYGON_YL[eutocode_engine_POLYGON_POINTER]; } else if(c == '\uEB50') // draws a polygon { eutocode_engine_POLYGON_SIDES=eutocode_engine_POLYGON_POINTER; screen.drawPolygon(eutocode_engine_POLYGON_X, eutocode_engine_POLYGON_Y, eutocode_engine_POLYGON_SIDES); } else if(c == '\uEB51') // draws a filled polygon { eutocode_engine_POLYGON_SIDES=eutocode_engine_POLYGON_POINTER; screen.fillPolygon(eutocode_engine_POLYGON_X, eutocode_engine_POLYGON_Y, eutocode_engine_POLYGON_SIDES); } // End of the additions of 14 December 2002 for polygons } }