Graphical Printing on HP printers

Given an existing C program that reads a file and sends commands to an HP printer, adapt this program to really make it to work. This program replaces the printing of a plotter to a laser/deskjet HP printers. The input file has commands like: 1) Pen Up; 2) Pen Down; 3) Go to some coordinates within the range of an A4 format; 3) Print text; 4) Print bmp and jpg images; 5) Few other commands like rotating text, etc. The printing should (see attached image for a sample. It is a cut of a plotted A4 page using old pens): 1) Print graphical information in A4 format; 2) No printing across many pages; a given file only prints one sheet; The status of the C program is that: 1) it reads the file and calls a set of small routines that perform specific functions (pen up, text, etc.). 2) existing few comments are in Portuguese but very easily understood by the corresponding functionality. ## Deliverables 1) Complete and fully-functional working program(s) in executable form as well as complete source code of all work done. 2) Deliverables must be in ready-to-run condition, as follows (depending on the nature of the deliverables): a) For web sites or other server-side deliverables intended to only ever exist in one place in the Buyer's environment--Deliverables must be installed by the Seller in ready-to-run condition in the Buyer's environment. b) For all others including desktop software or software the buyer intends to distribute: A software installation package that will install the software in ready-to-run condition on the platform(s) specified in this bid request. 3) All deliverables will be considered "work made for hire" under U.S. Copyright law. Buyer will receive exclusive and complete copyrights to all work purchased. (No GPL, GNU, 3rd party components, etc. unless all copyright ramifications are explained AND AGREED TO by the buyer on the site per the coder's Seller Legal Agreement). * * *This broadcast message was sent to all bidders on Monday Feb 6, 2006 2:14:10 PM: I attached a zipped file with the existing code and and the input file that produces the picture shown. It might be possible that the code does not rotate texts. Thanks. * * *This broadcast message was sent to all bidders on Tuesday Feb 7, 2006 3:40:21 PM: There is a bit of confusion with the C program and I put some extra comments in English. To draw a line: Pen Up Cursor (x1, y1) PenDown Cursor (x2, y2) Pen Up Thanks. Bressan Here is the program /* PROGRAMA : printer.c OBJETIVO : Converter arquivos plotados para imprimir em deskjet. AUTOR : Celso Bressan DATA : 18/jan/2006 */ #include #include #include #include #define HP890C 0 #define KODAK 1 #define HP900 2 char buf[4000]; FILE *stdinput; FILE *stdoutput; int Tipo; char EB = '^'; char ET = '_'; // String terminator int EC = 100; /* Inicia a impressora. */ // Initializes printer void Inicia(void) { switch(Tipo) { case HP890C: fprintf(stdoutput, "\033E"); /* Reseta a impressora. */ fprintf(stdoutput, "\033&l26A"); /* Seleciona o formato A4. */ fprintf(stdoutput, "\033&l1O"); /* Orientação Landscape. */ fprintf(stdoutput, "\033*t75R"); /* 75 dots per inch. */ fprintf(stdoutput, "\033*r0A"); /* Inicia o raster grafico. */ fprintf(stdoutput, "\033(6M"); break; case KODAK: fprintf(stdoutput, "Pena=%c\n", 'U'); break; case HP900: fprintf(stdoutput, "Pena=%c\n", 'U'); break; } } // Set printer back to normal at the end of the job. void Termina(void) { switch(Tipo) { case HP890C: fprintf(stdoutput, "\033*rC"); /* Final do raster grafico. */ fprintf(stdoutput, "\033E"); /* Reseta a impressora. */ break; case KODAK: fprintf(stdoutput, "Pena=%c\n", 'U'); break; case HP900: fprintf(stdoutput, "Pena=%c\n", 'U'); break; } } /* Pega um valor numerico. */ // Gets a numeric value int PegaValor(void) { int i; int c; for (i = 0; i < 10; i++) { c = fgetc(stdinput); if ((c >= '0' && c <= '9') || c == '-' || c == '+') buf[i] = c; else { buf[i] = '\0'; ungetc(c, stdinput); break; } } return(atoi(buf)); } /* Peg a um valor hexadecimal. */ // Gets a hexadecimal value char PegaHexa(void) { int c; char TabHex[] = "0123456789ABCDEF"; c = toupper(fgetc(stdinput)); if (c >= '0' && c <= '9') return(c - '0'); if (c >= 'A' && c <= 'F') return(c - 'A' + 10); return(0); } /* Configura codigos. */ // Configuration parameters void Configura(void) { int c; c = fgetc(stdinput); if (c == 'B') EB = PegaHexa() * 16 + PegaHexa(); if (c == 'T') ET = PegaHexa() * 16 + PegaHexa(); if (c == 'C') { c = fgetc(stdinput); if (c == 'M') EC = 100; if (c == 'N') EC = 025; if (c == '1') EC = 001; if (c == '5') EC = 005; } } /* Pega um string. */ // Gets a string terminated by ET. Rot is the rotation and Tam is the font size void PegaString(void) { int i; int c; int v; int Rot = 1; int Tam; char Rotar[20]; char Tamar[20]; Rot = fgetc(stdinput) - '0'; if (Rot == 1) strcpy(Rotar, ""); else strcpy(Rotar, "\033&a90P"); i = fgetc(stdinput) - '0'; if ((c = fgetc(stdinput)) == '+') Tam = (i - 1) * 2 + 1; else Tam = (i - 1) * 2; for (i = 0; i < sizeof(buf); i++) { c = fgetc(stdinput); if (c == ET) break; else buf[i] = c; } buf[i] = '\0'; switch(Tipo) { case HP890C: fprintf(stdoutput, "\033(s20H\033(s%dV%s%s\033&a0P", Tam * 10, Rotar, buf); break; case KODAK: fprintf(stdoutput, "String=(%d,%s)\n", v, buf); break; case HP900: fprintf(stdoutput, "String=(%d,%s)\n", v, buf); break; } } /* Pega um par de ordenadas x e y. */ // Gets a pair of x and y void PegaCoord(int *x, int*y) { *x = PegaValor(); fgetc(stdinput); *y = PegaValor(); } // Pen Up void SobePena(void) { switch(Tipo) { case HP890C: fprintf(stdoutput, ""); break; case KODAK: fprintf(stdoutput, "Pena=%c\n", 'U'); break; case HP900: fprintf(stdoutput, "Pena=%c\n", 'U'); break; } } // Pen Down void DescePena(void) { switch(Tipo) { case HP890C: fprintf(stdoutput, ""); bre ak; case KODAK: fprintf(stdoutput, "Pena=%c\n", 'D'); break; case HP900: fprintf(stdoutput, "Pena=%c\n", 'D'); break; } } // Selects a pen void PoePena(void) { int v; v = PegaValor(); switch(Tipo) { case HP890C: fprintf(stdoutput, ""); break; case KODAK: fprintf(stdoutput, "PoePena=%d\n", v); break; case HP900: fprintf(stdoutput, "PoePena=%d\n", v); break; } } // Gets the size of page in units void PegaLimites(int *X0, int *Y0, int *X1, int *Y1) { int c; c = fgetc(stdinput); *X0 = PegaValor(); c = fgetc(stdinput); *Y0 = PegaValor(); c = fgetc(stdinput); *X1 = PegaValor(); c = fgetc(stdinput); *Y1 = PegaValor(); } // Sets the cursor position void Cursor(int x, int y) { switch(Tipo) { case HP890C: fprintf(stdoutput, "\033*p%dX\033*p%dY", x, y); break; case KODAK: fprintf(stdoutput, "Cursor=(%d,%d)\n", x, y); break; case HP900: fprintf(stdoutput, "Cursor=(% d,%d)\n", x, y); break; } } main(int argc, char **argv) { int x; int y; int c; int X0, Y0, X1, Y1; char entra[512]; char saida[512]; char *p; /* Determina o tipo da impressora. */ if (argc != 4) { fprintf (stderr, "Parametro invalido: nome da impressora.\n"); exit(1); } Tipo = HP890C; if (strcmp(argv[1], "HP890C") == 0) Tipo = HP890C; if (strcmp(argv[1], "KODAK") == 0) Tipo = KODAK; if (strcmp(argv[1], "HP900") == 0) Tipo = HP900; /* Abre a entrada e a saida. */ // p = (char *)getenv("HOME"); // sprintf(entra, "%s/data/", p, argv[2]); // sprintf(saida, "%s/data/", p, argv[3]); stdinput = fopen(argv[2],"r"); stdoutput = fopen(argv[3],"w"); Inicia(); /* Processa as linhas da entrada. */ X0 = Y0 = X1 = Y1 = 0; while ((c = fgetc(stdinput)) != -1) { switch(c) { case ' ': break; case '0': case '1': case '2': case '3': case '4': case '5': case '6': case '7': case '8': case '9': case '+': case '-': ungetc(c, stdinput); // Coordinates PegaCoord(&x, &y); Cursor(x, Y1 - y); break; case 'V': // Not used PegaValor(); break; case 0x0A: // end of line case 0x0D: break; case 'D': DescePena(); // Pen Down break; case 'E': Configura(); // Configuration break; case 'U': SobePena(); // Pen Up break; case 'P': PoePena(); // Select Pen break; case 'H': Cursor(0, Y1); // Cursor to home break; case 'S': PegaString(); // Gets a string break; case 'L': PegaValor(); // Gets a value break; case 'W': PegaLimites(&X0, &Y0, &X1, &Y1); // Gets the borders of the page break; default: // fprintf(stdoutput, "\nError=%c\n", c); break; } } Termina(); } ## Platform It is platform independent as it can be called from any environment to send files to a printer.