File content as of revision 19:3a817d2cef11:

#include "SerialDiagnostics.h"

// Macros for working with the string
// Add newlines, add it to the working buffer 
#define ADD_LINE                  len+=sprintf(buff+len,"%s\r\n",line);                                                    
#define ADD_SPRINTF_LINE          padCenter(line,max_charsPerLine-2,temp,' '); len+=sprintf(buff+len,"%s\r\n",line);

// Print to a string buffer, pad to maxLen chars and center it with char pad, str must be null terminated!
void padCenter(char *buff, int LineLen, char *str, char pad) {
    int len = strlen(str);
    int padL = (LineLen-len)/2;                              // -1 to save room for the null terminator
    for (int i=0; i<padL; i++) buff[i] = pad;                // Fill in the left padding chars
    strcpy(buff+padL, str);
    for (int i = padL+len; i<LineLen; i++) buff[i] = pad;    // Fill remaining with padding chars
    buff[LineLen-1] = '\0';                                  // Add null terminator
}

void SerialDiagnostics::thread_serialOut(void const* args){
    const int max_charsPerLine = 81;                 // Max chars per line
    const int max_lines = 30;                        // Max lines that the layout prints out
    pc.printf("\033[2J");                            // Clear the screen to get rid of reset message
 
    char buff[max_charsPerLine*max_lines];           // Giant string to store the printout
    char line[max_charsPerLine];                     // String buffer to work with one line at a time
    char temp[max_charsPerLine];                     // String buffer to sprintf into
    
    while(1){
        
        int len = 0;
        len += sprintf(buff+len, "\033[0;0H");                      // Home the cursor
        padCenter(line, max_charsPerLine-2, "-", '-'); ADD_LINE     // Generate a line full of 80 -'s      
        padCenter(line, max_charsPerLine-2, " Penn Electric Racing - REV0 System Management Module Serial Dashboard ", '-'); ADD_LINE
        padCenter(line, max_charsPerLine-2, "-", '-'); ADD_LINE     // Generate a line full of 80 -'s 
        
        // Write it all at once to output tx buffer
        for (int i = 0; i < strlen(buff); i++) {
            pc.putc(buff[i]);   
        }
        
        Thread::wait(100);
    }
}