![](/media/cache/profiles/9bd5ee6fe55aaeb673025dbcb8f939c1.50x50_q85.jpg)
An example code how to use GT20L16J1Y_font library
Dependencies: C12832 GT20L16J1Y_font mbed
Diff: main.cpp
- Revision:
- 3:b095be7ec287
- Parent:
- 0:b468ef973095
--- a/main.cpp Wed Jan 15 07:05:48 2014 +0000 +++ b/main.cpp Thu Sep 04 06:55:37 2014 +0000 @@ -1,19 +1,31 @@ #include "mbed.h" -#include "C12832_lcd.h" +#include "C12832.h" #include "GT20L16J1Y_font.h" +#include "utf8_table.h" + +#include <stdlib.h> /* GT20L16J1Y library test program - works with mbed application board */ -C12832_LCD lcd; +DigitalOut led(LED1); + +#if defined(TARGET_LPC1768) +C12832 lcd(p5, p7, p6, p8, p11); GT20L16J1Y_FONT font(p11, p12, p13, p10); +#elif defined(TARGET_LPC11U68) +C12832 lcd(D11, D13, D12, D7, D10); +GT20L16J1Y_FONT font(P0_21, P0_22, P1_20, P0_23); +#endif -void draw_kanji(int offset_x, int offset_y) +#define numOfCharBuffer 40 +uint16_t kBuf[numOfCharBuffer]; + +void draw_string(int offset_x, int offset_y, int width) { int color; - for(int x=0; x<32; x++) + for(int x=0; x<width*2; x++) { for(int y=0; y<8; y++) { @@ -21,30 +33,83 @@ color = 1; else color = 0; - lcd.pixel(x%16 + offset_x, y+(8*(x>>4)) + offset_y, color); + lcd.pixel(x%width + offset_x, y+(8*(x/width)) + offset_y, color); } } lcd.copy_to_lcd(); } +int int_compar(const uint16_t *a, const uint16_t *b) +{ + if (*a < *b) + return (-1); + else if (*a > *b) + return (1); + else + return (0); +} + +int conv_utf8(char* utfBuffer, uint16_t* kutenBuffer) +{ + int ret; + uint16_t key, *index, *pBuf; + char *uBuf; + + uBuf = utfBuffer; + pBuf = kutenBuffer; + ret = 0; + + while (uBuf[0] != 0) { + if (uBuf[0] >= 0x20 && uBuf[0] < 0x80) { + // in case of ASCII + *pBuf++ = (uint16_t)uBuf[0]; + uBuf += 1; + ret++; + continue; + } + else if ( (uBuf[0]&0xF0) != 0xE0) { + uBuf += 1; + continue; + } + // extract valid bits of UTF-8 + key = ((uBuf[0] & 0x000F) << 12) | ((uBuf[1] & 0x003F) << 6) | (uBuf[2] & 0x003F); + + // search UTF-8 code from utf8_key[] table to get index of Kuten table + index = (uint16_t *)bsearch(&key, utf8_key, (sizeof(utf8_key) / sizeof(utf8_key[0])), sizeof(uint16_t), (int (*)(const void *, const void *))int_compar); + if (index != 0) { + // get Kuten code + *pBuf = utf8_value[index - utf8_key]; + } + + uBuf += 3; + pBuf++; + ret++; + } + *pBuf = 0; + + return ret; +} + +void draw_utf8(int offset_x, int offset_y, char *buf_u) +{ + int len = conv_utf8(buf_u, kBuf); + int xpos = 0; + + for(int i = 0; i < len; i++) { + int width = font.read_kuten(kBuf[i]); + draw_string(xpos + offset_x, offset_y, width); + xpos += width; + } +} + int main() { - unsigned short kbuf[16] = { - 0x9069, - 0x92BB, - 0x82C7, - 0x82A4, - 0x82C5, - 0x82B7, - 0x82A9, - 0x8148 - }; - + led = 0; lcd.cls(); - - for(int i=0; i<8; i++) { - font.read(kbuf[i]); - draw_kanji(16*i, 0); + draw_utf8(0, 0, "進捗どうですか??"); + draw_utf8(0, 16, "mbedで日本語表示"); + while(1) { + led = !led; + wait(1.0); } - }