123456789101112131415161718192021222324252627282930313233343536373839404142434445464748495051525354555657585960616263646566676869707172737475767778798081828384858687888990919293949596979899100101102103104105106107108109110111112113114115116117118119120121122123124125126127128129130131132133134135136137138139140141142143144145146147148149150151152153154155156157158159160161162163164165166167168169170171172173174175176177178179180181182183184185186187188189190191192193194195196197198199200201202203204205206207208209210211212213214215216217218219220221222223224225226227228229230231232233234235236237238239240241242243244245246247248249250251252253254255256257258259260261262263264265266267268269270271272273274275276277278279280281282283284285286287288289290291292293294295296297298299300301302303304305306307308309310311312313314315 |
- /**
- * @file u8g_fontutf8.cpp
- * @brief font api for u8g lib
- * @author Yunhui Fu (yhfudev@gmail.com)
- * @version 1.0
- * @date 2015-02-19
- * @copyright GPL/BSD
- */
-
- #include "../../inc/MarlinConfigPre.h"
-
- #if HAS_MARLINUI_U8GLIB
-
- #include <string.h>
- #include "../fontutils.h"
- #include "u8g_fontutf8.h"
-
- typedef void font_t;
-
- /**
- * @brief the callback function to draw something
- *
- * @param userdata : User's data
- * @param msg : the u8g's string
- * @param fnt_current : the font
- *
- * @return 0 on success, 1 to force quit, <0 on error
- *
- * Get the screen pixel width of a ROM UTF-8 string
- */
- typedef int (* fontgroup_cb_draw_t)(void *userdata, const font_t *fnt_current, const char *msg);
-
- /* return v1 - v2 */
- static int fontinfo_compare(uxg_fontinfo_t * v1, uxg_fontinfo_t * v2) {
- if (v1->page < v2->page) return -1;
- else if (v1->page > v2->page) return 1;
-
- if (v1->end < v2->begin) return -1;
- else if (v1->begin > v2->end) return 1;
-
- return 0;
- }
-
- /*"data_list[idx] - *data_pin"*/
- static int pf_bsearch_cb_comp_fntifo_pgm (void *userdata, size_t idx, void *data_pin) {
- uxg_fontinfo_t *fntinfo = (uxg_fontinfo_t*)userdata;
- uxg_fontinfo_t localval;
- memcpy_P(&localval, fntinfo + idx, sizeof(localval));
- return fontinfo_compare(&localval, (uxg_fontinfo_t*)data_pin);
- }
-
- typedef struct _font_group_t {
- const uxg_fontinfo_t * m_fntifo;
- int m_fntinfo_num;
- } font_group_t;
-
- static int fontgroup_init(font_group_t * root, const uxg_fontinfo_t * fntinfo, int number) {
- root->m_fntifo = fntinfo;
- root->m_fntinfo_num = number;
- return 0;
- }
-
- static const font_t* fontgroup_find(font_group_t * root, wchar_t val) {
- uxg_fontinfo_t vcmp = {(uint16_t)(val / 128), (uint8_t)(val % 128 + 128), (uint8_t)(val % 128 + 128), 0, 0};
- size_t idx = 0;
-
- if (val < 256) return nullptr;
-
- if (pf_bsearch_r((void*)root->m_fntifo, root->m_fntinfo_num, pf_bsearch_cb_comp_fntifo_pgm, (void*)&vcmp, &idx) < 0)
- return nullptr;
-
- memcpy_P(&vcmp, root->m_fntifo + idx, sizeof(vcmp));
- return vcmp.fntdata;
- }
-
- static void fontgroup_drawwchar(font_group_t *group, const font_t *fnt_default, wchar_t val, void * userdata, fontgroup_cb_draw_t cb_draw_ram) {
- uint8_t buf[2] = {0, 0};
- const font_t * fntpqm = (font_t*)fontgroup_find(group, val);
- if (!fntpqm) {
- // Unknown char, use default font
- buf[0] = (uint8_t)(val & 0xFF);
- fntpqm = fnt_default;
- }
- if (fnt_default != fntpqm) {
- buf[0] = (uint8_t)(val & 0x7F);
- buf[0] |= 0x80; // use upper page to avoid 0x00 error in C. you may want to generate the font data
- }
-
- cb_draw_ram (userdata, fntpqm, (char*) buf);
- }
-
- /**
- * @brief try to process a utf8 string
- *
- * @param pu8g : U8G pointer
- * @param fnt_default : the default font
- * @param utf8_msg : the UTF-8 string
- * @param cb_read_byte : how to read the utf8_msg, from RAM or ROM (call read_byte_ram or pgm_read_byte)
- * @param userdata : User's data
- * @param cb_draw_ram : the callback function of userdata to draw a !RAM! string (actually it is to draw a one byte string in RAM)
- *
- * @return N/A
- *
- * Get the screen pixel width of a ROM UTF-8 string
- */
- static void fontgroup_drawstring(font_group_t *group, const font_t *fnt_default, const char *utf8_msg, read_byte_cb_t cb_read_byte, void * userdata, fontgroup_cb_draw_t cb_draw_ram) {
- uint8_t *p = (uint8_t*)utf8_msg;
- for (;;) {
- wchar_t val = 0;
- p = get_utf8_value_cb(p, cb_read_byte, &val);
- if (!val) break;
- fontgroup_drawwchar(group, fnt_default, val, userdata, cb_draw_ram);
- }
- }
-
- static bool flag_fontgroup_was_inited = false;
- static font_group_t g_fontgroup_root = { nullptr, 0 };
-
- /**
- * @brief check if font is loaded
- */
- static inline bool uxg_Utf8FontIsInited() { return flag_fontgroup_was_inited; }
-
- int uxg_SetUtf8Fonts (const uxg_fontinfo_t * fntinfo, int number) {
- flag_fontgroup_was_inited = 1;
- return fontgroup_init(&g_fontgroup_root, fntinfo, number);
- }
-
- struct _uxg_drawu8_data_t {
- u8g_t *pu8g;
- unsigned int x;
- unsigned int y;
- unsigned int adv;
- unsigned int max_width; // the max pixel width of the string allowed
- const void * fnt_prev;
- };
-
- static int fontgroup_cb_draw_u8g(void *userdata, const font_t *fnt_current, const char *msg) {
- struct _uxg_drawu8_data_t * pdata = (_uxg_drawu8_data_t*)userdata;
-
- if (pdata->fnt_prev != fnt_current) {
- u8g_SetFont(pdata->pu8g, (const u8g_fntpgm_uint8_t*)fnt_current);
- pdata->fnt_prev = fnt_current;
- }
- if ((pdata->max_width != PIXEL_LEN_NOLIMIT) && (pdata->adv + u8g_GetStrPixelWidth(pdata->pu8g, (char*)msg) > pdata->max_width))
- return 1;
- pdata->adv += u8g_DrawStr(pdata->pu8g, pdata->x + pdata->adv, pdata->y, (char*) msg);
- return 0;
- }
-
- /**
- * @brief Draw a wchar_t at the specified position
- *
- * @param pu8g : U8G pointer
- * @param x : position x axis
- * @param y : position y axis
- * @param ch : the wchar_t
- * @param max_width : the pixel width of the string allowed
- *
- * @return number of pixels advanced
- *
- * Draw a UTF-8 string at the specified position
- */
- unsigned int uxg_DrawWchar(u8g_t *pu8g, unsigned int x, unsigned int y, wchar_t ch, pixel_len_t max_width) {
- struct _uxg_drawu8_data_t data;
- font_group_t *group = &g_fontgroup_root;
- const font_t *fnt_default = uxg_GetFont(pu8g);
-
- if (!uxg_Utf8FontIsInited()) {
- u8g_DrawStrP(pu8g, x, y, (const u8g_pgm_uint8_t *)PSTR("Err: utf8 font not initialized."));
- return 0;
- }
- data.pu8g = pu8g;
- data.x = x;
- data.y = y;
- data.adv = 0;
- data.max_width = max_width;
- data.fnt_prev = nullptr;
- fontgroup_drawwchar(group, fnt_default, ch, (void*)&data, fontgroup_cb_draw_u8g);
- u8g_SetFont(pu8g, (const u8g_fntpgm_uint8_t*)fnt_default);
-
- return data.adv;
- }
-
- /**
- * @brief Draw a UTF-8 string at the specified position
- *
- * @param pu8g : U8G pointer
- * @param x : position x axis
- * @param y : position y axis
- * @param utf8_msg : the UTF-8 string
- * @param max_width : the pixel width of the string allowed
- *
- * @return number of pixels advanced
- *
- * Draw a UTF-8 string at the specified position
- */
- unsigned int uxg_DrawUtf8Str(u8g_t *pu8g, unsigned int x, unsigned int y, const char *utf8_msg, pixel_len_t max_width) {
- struct _uxg_drawu8_data_t data;
- font_group_t *group = &g_fontgroup_root;
- const font_t *fnt_default = uxg_GetFont(pu8g);
-
- if (!uxg_Utf8FontIsInited()) {
- u8g_DrawStrP(pu8g, x, y, (const u8g_pgm_uint8_t *)PSTR("Err: utf8 font not initialized."));
- return 0;
- }
- data.pu8g = pu8g;
- data.x = x;
- data.y = y;
- data.adv = 0;
- data.max_width = max_width;
- data.fnt_prev = nullptr;
- fontgroup_drawstring(group, fnt_default, utf8_msg, read_byte_ram, (void*)&data, fontgroup_cb_draw_u8g);
- u8g_SetFont(pu8g, (const u8g_fntpgm_uint8_t*)fnt_default);
-
- return data.adv;
- }
-
- /**
- * @brief Draw a ROM UTF-8 string at the specified position
- *
- * @param pu8g : U8G pointer
- * @param x : position x axis
- * @param y : position y axis
- * @param utf8_msg : the UTF-8 string
- * @param max_width : the pixel width of the string allowed
- *
- * @return number of pixels advanced
- *
- * Draw a ROM UTF-8 string at the specified position
- */
- unsigned int uxg_DrawUtf8StrP(u8g_t *pu8g, unsigned int x, unsigned int y, PGM_P utf8_msg, pixel_len_t max_width) {
- struct _uxg_drawu8_data_t data;
- font_group_t *group = &g_fontgroup_root;
- const font_t *fnt_default = uxg_GetFont(pu8g);
-
- if (!uxg_Utf8FontIsInited()) {
- u8g_DrawStrP(pu8g, x, y, (const u8g_pgm_uint8_t *)PSTR("Err: utf8 font not initialized."));
- return 0;
- }
- data.pu8g = pu8g;
- data.x = x;
- data.y = y;
- data.adv = 0;
- data.max_width = max_width;
- data.fnt_prev = nullptr;
- fontgroup_drawstring(group, fnt_default, utf8_msg, read_byte_rom, (void*)&data, fontgroup_cb_draw_u8g);
- u8g_SetFont(pu8g, (const u8g_fntpgm_uint8_t*)fnt_default);
-
- return data.adv;
- }
-
- static int fontgroup_cb_draw_u8gstrlen(void *userdata, const font_t *fnt_current, const char *msg) {
- struct _uxg_drawu8_data_t * pdata = (_uxg_drawu8_data_t*)userdata;
-
- if (pdata->fnt_prev != fnt_current) {
- u8g_SetFont(pdata->pu8g, (const u8g_fntpgm_uint8_t*)fnt_current);
- pdata->fnt_prev = fnt_current;
- }
- pdata->adv += u8g_GetStrPixelWidth(pdata->pu8g, (char*)msg);
- return 0;
- }
-
- /**
- * @brief Get the screen pixel width of a UTF-8 string
- *
- * @param pu8g : U8G pointer
- * @param utf8_msg : the UTF-8 string
- *
- * @return the pixel width
- *
- * Get the screen pixel width of a UTF-8 string
- */
- int uxg_GetUtf8StrPixelWidth(u8g_t *pu8g, const char *utf8_msg) {
- struct _uxg_drawu8_data_t data;
- font_group_t *group = &g_fontgroup_root;
- const font_t *fnt_default = uxg_GetFont(pu8g);
-
- if (!uxg_Utf8FontIsInited()) return -1;
-
- memset(&data, 0, sizeof(data));
- data.pu8g = pu8g;
- data.adv = 0;
- fontgroup_drawstring(group, fnt_default, utf8_msg, read_byte_ram, (void*)&data, fontgroup_cb_draw_u8gstrlen);
- u8g_SetFont(pu8g, (const u8g_fntpgm_uint8_t*)fnt_default);
-
- return data.adv;
- }
-
- /**
- * @brief Get the screen pixel width of a ROM UTF-8 string
- *
- * @param pu8g : U8G pointer
- * @param utf8_msg : the UTF-8 string
- *
- * @return the pixel width
- *
- * Get the screen pixel width of a ROM UTF-8 string
- */
- int uxg_GetUtf8StrPixelWidthP(u8g_t *pu8g, PGM_P utf8_msg) {
- struct _uxg_drawu8_data_t data;
- font_group_t *group = &g_fontgroup_root;
- const font_t *fnt_default = uxg_GetFont(pu8g);
-
- if (!uxg_Utf8FontIsInited()) return -1;
-
- memset(&data, 0, sizeof(data));
- data.pu8g = pu8g;
- data.adv = 0;
- fontgroup_drawstring(group, fnt_default, utf8_msg, read_byte_rom, (void*)&data, fontgroup_cb_draw_u8gstrlen);
- u8g_SetFont(pu8g, (const u8g_fntpgm_uint8_t*)fnt_default);
- return data.adv;
- }
-
- #endif // HAS_MARLINUI_U8GLIB
|