8x8fontsLib.cpp

00001 #include "mbed.h"
00002 #include "displayCom.h"
00003 #include "kfont8.h"
00004 #include "8x8fontsLib.h"
00005 #include "unicode2SJIS.h"
00006 
00007 
00008 
00009 
00010 extern unsigned short unicode2SJIS(char c);
00011 
00012 
00013 int offsety = 0;
00014 bool kstate = false;
00015 unsigned char kbuf;
00016 
00017 const unsigned char *findface(unsigned short c){
00018     const unsigned char *p = NULL;
00019     int i, sum;
00020     for(sum = i = 0; i < countof(font8table); i++){
00021         if(font8table[i].start <= c && c <= font8table[i].end){
00022             p = &font8[(sum + c - font8table[i].start) << 3];
00023             break;
00024         }
00025         sum += font8table[i].end - font8table[i].start + 1;
00026     }
00027     return p;
00028 }
00029 
00030 // draw 8x8 font
00031 // charWidth 1~8
00032 
00033 void drawkanji(unsigned short c,unsigned char color, signed short posX, unsigned char posY,unsigned char charWidth){
00034     unsigned char i = 0;
00035     const unsigned char *p = findface(c);
00036     if(p == NULL) return;
00037 
00038     if(color == COLOR_G || color == COLOR_C || color == COLOR_Y || color == COLOR_W)
00039     {
00040         for(i=0;i<charWidth;i++)
00041         {
00042             if( (posX+(7-i)) >= 0)
00043             {
00044                 ImageBuf[0][ posX+(7-i) ] = p[i]<<posY;
00045             }
00046         }
00047     }
00048     if(color == COLOR_R || color == COLOR_Y || color == COLOR_M || color == COLOR_W)
00049     {
00050         for(i=0;i<charWidth;i++)
00051         {
00052             if( (posX+(7-i)) >= 0)
00053             {
00054                 ImageBuf[1][ posX+(7-i) ] = p[i]<<posY;
00055             }
00056         }
00057     }
00058     if(color == COLOR_B || color == COLOR_C || color == COLOR_M || color == COLOR_W)
00059     {
00060         for(i=0;i<charWidth;i++)
00061         {
00062             if( (posX+(7-i)) >= 0)
00063             {
00064 
00065                 ImageBuf[2][ posX+(7-i) ] = p[i]<<posY;
00066             }
00067         }
00068     }
00069 }
00070 
00071 void drawc(unsigned char c, unsigned char color, signed short posX, unsigned char posY, unsigned char charWidth){
00072     if(kstate)
00073     { // 2nd byte of shift-jis
00074         kstate = false;
00075         drawkanji( (kbuf << 8 | c),color,posX,posY,charWidth);
00076     }
00077     else if((0x81 <= c && c <= 0x9f) || (0xe0 <= c && c <= 0xfc)){ // 1st byte of shift-jis
00078         kstate = true;
00079         kbuf = c;
00080     }
00081     else
00082     { 
00083         drawkanji( unicode2SJIS_Table[c],color,posX,posY,charWidth);
00084     }
00085 }
00086 
00087 void drawStr8x8(char *str, unsigned char color, signed short posX, unsigned char posY){
00088     unsigned char c = 0;
00089     unsigned char f_2byteChar = 0;
00090     unsigned char countChar = 0;
00091     signed short tmp_posX = 0;
00092 
00093     c = *str;
00094     while( (c != '\0') && (posX>=(countChar*8)) )
00095     {
00096         drawc(c,color,(posX-(countChar*8)),posY,8);
00097         if( ((0x81 <= c && c <= 0x9f) || (0xe0 <= c && c <= 0xfc)) && f_2byteChar != 1 )
00098         { // 1st byte of shift-jis
00099             f_2byteChar = 1;
00100         }
00101         else if(f_2byteChar == 1)
00102         {
00103             f_2byteChar = 0;
00104             countChar++;
00105         }
00106         else
00107         {
00108             f_2byteChar = 0;
00109             countChar++;
00110         }
00111         str++;
00112         c = *str;
00113     }
00114     if( ((posX%8) != 0) && (c != '\0') )
00115     {
00116         tmp_posX = posX%8;
00117         tmp_posX = tmp_posX-8;
00118         do{
00119             drawc(c,color,tmp_posX,posY,8);
00120             if( ((0x81 <= c && c <= 0x9f) || (0xe0 <= c && c <= 0xfc)) && (f_2byteChar != 1)){
00121                 f_2byteChar = 1;
00122                 str++;
00123                 c = *str;
00124             }
00125             else if(f_2byteChar == 1)
00126             {
00127                 f_2byteChar = 0;
00128                 countChar++;
00129             }
00130             else
00131             {
00132                 f_2byteChar = 0;
00133                 countChar++;
00134             }
00135         }while(  (f_2byteChar == 1) );
00136     }
00137 }