为OLED屏添加GUI支持3：字库
Posted zhchoutai
tags:
篇首语：本文由小常识网(cha138.com)小编为大家整理，主要介绍了为OLED屏添加GUI支持3：字库相关的知识，希望对你有一定的参考价值。
为OLED屏添加GUI支持3：字库
本文博客链接:http://blog.csdn.net/jdh99,作者:jdh,转载请注明.
环境：
主机:WIN10
开发环境:MDK5.13
MCU:STM32F103
说明：
GUI中有字库方能显示汉字。英文，数字等。英文数字等ASCII码128个字符保存显示easy。但汉字数万，假设不用字库芯片，用软件保存。则flash明显不够。所以仅仅加入须要显示的汉字。
本GUI用的显示方法，能够easy的显示不同字体，不同字号的汉字和ASCII码。
源码及步骤：
1.用工具FontCvt.exe(emwin自带工具)选择须要的字体，字号。以及须要的字符(汉字。ASCII)并生成相应的.c文件
2.将此.c文件转换为指定格式。下面为微软雅黑20号字体的转换后源文件:
FHZ20.c
/**
* Copyright (c), 2015-2025
* @file FHZ20.c
* @brief 20号汉字字库,字体微软雅黑
* @author jdh
* @date 2015/9/6
* @date 2015/9/7
* @date 2015/9/9
*/
/*********************************************************************
* 头文件
**********************************************************************/
#include "font.h"
/*********************************************************************
* 静态变量
**********************************************************************/
/**
* @brief 字符:空
*/
unsigned char Hz20_0020[ 20] = { /* code 0020, SPACE */
________,
________,
________,
________,
________,
________,
________,
________,
________,
________,
________,
________,
________,
________,
________,
________,
________,
________,
________,
________};
unsigned char Hz20_002E[ 20] = { /* code 002E, FULL STOP */
________,
________,
________,
________,
________,
________,
________,
________,
________,
________,
________,
________,
________,
________,
_XX_____,
_XX_____,
________,
________,
________,
________};
unsigned char Hz20_0030[ 20] = { /* code 0030, DIGIT ZERO */
________,
________,
________,
________,
________,
___XXX__,
__X__X__,
_X____X_,
_X____X_,
_X____X_,
_X____X_,
_X____X_,
_X____X_,
_X____X_,
__X__X__,
__XXX___,
________,
________,
________,
________};
unsigned char Hz20_0031[ 20] = { /* code 0031, DIGIT ONE */
________,
________,
________,
________,
________,
____X___,
__XXX___,
_XX_X___,
____X___,
____X___,
____X___,
____X___,
____X___,
____X___,
____X___,
____X___,
________,
________,
________,
________};
unsigned char Hz20_0032[ 20] = { /* code 0032, DIGIT TWO */
________,
________,
________,
________,
________,
__XXXX__,
_X___XX_,
______X_,
______X_,
______X_,
_____X__,
___XX___,
__XX____,
_XX_____,
_X______,
_XXXXXX_,
________,
________,
________,
________};
unsigned char Hz20_0033[ 20] = { /* code 0033, DIGIT THREE */
________,
________,
________,
________,
________,
__XXX___,
_X___X__,
_____X__,
_____X__,
____XX__,
__XX____,
____XX__,
_____X__,
_____X__,
_X__XX__,
__XXX___,
________,
________,
________,
________};
unsigned char Hz20_0034[ 20] = { /* code 0034, DIGIT FOUR */
________,
________,
________,
________,
________,
_____X__,
____XX__,
___XXX__,
___X_X__,
__X__X__,
_XX__X__,
XX___X__,
XXXXXXXX,
_____X__,
_____X__,
_____X__,
________,
________,
________,
________};
unsigned char Hz20_0035[ 20] = { /* code 0035, DIGIT FIVE */
________,
________,
________,
________,
________,
_XXXXX__,
_X______,
_X______,
_X______,
_X______,
_XXXXX__,
_____XX_,
______X_,
______X_,
_____XX_,
_XXXX___,
________,
________,
________,
________};
unsigned char Hz20_0036[ 20] = { /* code 0036, DIGIT SIX */
________,
________,
________,
________,
________,
___XXX__,
__X_____,
_X______,
_X______,
_X_XXX__,
_XX__XX_,
_X____X_,
_X____X_,
_X____X_,
__X__X__,
___XXX__,
________,
________,
________,
________};
unsigned char Hz20_0037[ 20] = { /* code 0037, DIGIT SEVEN */
________,
________,
________,
________,
________,
XXXXXXX_,
_____X__,
_____X__,
____X___,
____X___,
___X____,
___X____,
___X____,
__X_____,
__X_____,
__X_____,
________,
________,
________,
________};
unsigned char Hz20_0038[ 20] = { /* code 0038, DIGIT EIGHT */
________,
________,
________,
________,
________,
__XXXX__,
_XX__XX_,
_X____X_,
_X____X_,
__X__X__,
__XXXX__,
_XX__XX_,
_X____X_,
_X____X_,
_XX__XX_,
__XXXX__,
________,
________,
________,
________};
unsigned char Hz20_0039[ 20] = { /* code 0039, DIGIT NINE */
________,
________,
________,
________,
________,
__XXXX__,
__X__X__,
_X____X_,
_X____X_,
_X____X_,
_XX__XX_,
__XXX_X_,
______X_,
_____X__,
__X__X__,
__XXX___,
________,
________,
________,
________};
unsigned char Hz20_006D[ 40] = { /* code 006D, LATIN SMALL LETTER M */
________,________,
________,________,
________,________,
________,________,
________,________,
________,________,
________,________,
________,________,
_X_XXX__,XXX_____,
_XX__XXX,___X____,
_X____X_,___X____,
_X____X_,___X____,
_X____X_,___X____,
_X____X_,___X____,
_X____X_,___X____,
_X____X_,___X____,
________,________,
________,________,
________,________,
________,________};
unsigned char Hz20_CBD1[ 40] = { /* code 641C */
________,________,
________,________,
________,________,
________,________,
________,________,
__X___XX,X_______,
__X__XX_,XXXXX___,
XXXXXX__,X___X___,
__X__XXX,X_XXX___,
__X__X__,X___X___,
__XX_XXX,XXXXX___,
_XXXX___,X_______,
X_X__XXX,XXXX____,
__X___X_,__XX____,
__X____X,_XX_____,
__X____X,XX______,
XXX_XXX_,__XXXX__,
________,________,
________,________,
________,________};
unsigned char Hz20_CBF7[ 40] = { /* code 7D22 */
________,________,
________,________,
________,________,
________,________,
________,________,
_______X,________,
_XXXXXXX,XXXXX___,
_______X,________,
_XXXXXXX,XXXXX___,
_X___X__,XX__X___,
_X_XXXXX,X___X___,
______X_,_XX_____,
____XX__,__XX____,
__XXXXXX,XXXXX___,
____X__X,_X______,
__XX___X,__XX____,
XX__XXXX,____X___,
________,________,
________,________,
________,________};
/**
* @brief 字符:正
*/
unsigned char Hz20_D5FD[ 40] = { /* code 6B63 */
________,________,
________,________,
________,________,
________,________,
________,________,
_XXXXXXX,XXXXX___,
_______X,________,
_______X,________,
__X____X,________,
__X____X,________,
__X____X,XXXXX___,
__X____X,________,
__X____X,________,
__X____X,________,
__X____X,________,
__X____X,________,
XXXXXXXX,XXXXXX__,
________,________,
________,________,
________,________};
/**
* @brief 字符:常
*/
unsigned char Hz20_B3A3[ 40] = { /* code 5E38 */
________,________,
________,________,
________,________,
________,________,
________,________,
__XX__X_,__XX____,
___XX_X_,_XX_____,
_XXXXXXX,XXXXX___,
_X______,____X___,
_X_XXXXX,XXX_X___,
___X____,__X_____,
___XXXXX,XXX_____,
_______X,________,
__XXXXXX,XXXX____,
__X____X,___X____,
__X____X,_XXX____,
_______X,________,
________,________,
________,________,
________,________};
/**
* @brief 字符:超
*/
unsigned char Hz20_B3AC[ 40] = { /* code 8D85 */
________,________,
________,________,
________,________,
________,________,
________,________,
___X__XX,XXXXX___,
___X____,X___X___,
XXXXXX__,X___X___,
___X___X,____X___,
___X__X_,_XXX____,
XXXXXX__,________,
___X___X,XXXXX___,
_X_X___X,____X___,
_X_XXX_X,____X___,
_X_X___X,XXXXX___,
X_XX____,________,
X__XXXXX,XXXXXX__,
________,________,
________,________,
________,________};
/**
* @brief 字符:距
*/
unsigned char Hz20_BEE0[ 40] = { /* code 8DDD */
________,________,
________,________,
________,________,
________,________,
________,________,
_XXXX__X,XXXXXX__,
_X__X__X,________,
_X__X__X,________,
_XXXX__X,________,
_X_X___X,XXXXX___,
___X___X,____X___,
_X_XXX_X,____X___,
_X_X___X,XXXXX___,
_X_X___X,____X___,
_X_X___X,________,
_X_XXX_X,________,
XXX____X,XXXXXX__,
________,________,
________,________,
________,________};
/**
* @brief 字符:失
*/
unsigned char Hz20_CAA7[ 40] = { /* code 5931 */
________,________,
________,________,
________,________,
________,________,
________,________,
___X___X,________,
___X___X,________,
__XXXXXX,XXXXX___,
__X____X,________,
_X_____X,________,
_______X,________,
_XXXXXXX,XXXXXX__,
______XX,________,
______X_,X_______,
____XX__,_X______,
__XX____,__XX____,
XX______,____XX__,
________,________,
________,________,
________,________};
/**
* @brief 字符:踪
*/
unsigned char Hz20_D7D9[ 40] = { /* code 8E2A */
________,________,
________,________,
________,________,
________,________,
________,________,
_XXXX___,_XX_____,
_X__X_XX,XXXXXX__,
_X__X_X_,_____X__,
_XXXX___,________,
_X_X___X,XXXXX___,
___X____,________,
_X_XX_XX,XXXXXX__,
_X_X____,_X______,
_X_X___X,_X_X____,
_X_X__X_,_X__X___,
XXX_XX__,_X___X__,
_______X,XX______,
________,________,
________,________,
________,________};
/*********************************************************************
* 函数
**********************************************************************/
/**
* @brief 得到字体高度
* @param font:字体
* @retval 高度
*/
uint8_t GB18030_20X20_get_height(void)
{
return 20;
}
/**
* @brief 得到地址
* @param font:字体
* @param ch:待读取的字符
* @param addr:数据存储地址
* @retval 读取结果.0:失败,1:成功
*/
uint8_t GB18030_20X20_get_address(uint16_t ch,struct _Font_Type *font_type,uint32_t *addr)
{
switch (ch)
{
//空
case 0x0020:
{
font_type->width = 4;
font_type->height = 20;
font_type->size = 20;
*addr = (uint32_t)Hz20_0020;
break;
}
//.
case 0x002E:
{
font_type->width = 3;
font_type->height = 20;
font_type->size = 20;
*addr = (uint32_t)Hz20_002E;
break;
}
//0
case 0x0030:
{
font_type->width = 8;
font_type->height = 20;
font_type->size = 20;
*addr = (uint32_t)Hz20_0030;
break;
}
//1
case 0x0031:
{
font_type->width = 8;
font_type->height = 20;
font_type->size = 20;
*addr = (uint32_t)Hz20_0031;
break;
}
//2
case 0x0032:
{
font_type->width = 8;
font_type->height = 20;
font_type->size = 20;
*addr = (uint32_t)Hz20_0032;
break;
}
//3
case 0x0033:
{
font_type->width = 8;
font_type->height = 20;
font_type->size = 20;
*addr = (uint32_t)Hz20_0033;
break;
}
//4
case 0x0034:
{
font_type->width = 8;
font_type->height = 20;
font_type->size = 20;
*addr = (uint32_t)Hz20_0034;
break;
}
//5
case 0x0035:
{
font_type->width = 8;
font_type->height = 20;
font_type->size = 20;
*addr = (uint32_t)Hz20_0035;
break;
}
//6
case 0x0036:
{
font_type->width = 8;
font_type->height = 20;
font_type->size = 20;
*addr = (uint32_t)Hz20_0036;
break;
}
//7
case 0x0037:
{
font_type->width = 8;
font_type->height = 20;
font_type->size = 20;
*addr = (uint32_t)Hz20_0037;
break;
}
//8
case 0x0038:
{
font_type->width = 8;
font_type->height = 20;
font_type->size = 20;
*addr = (uint32_t)Hz20_0038;
break;
}
//9
case 0x0039:
{
font_type->width = 8;
font_type->height = 20;
font_type->size = 20;
*addr = (uint32_t)Hz20_0039;
break;
}
//m
case 0x006D:
{
font_type->width = 13;
font_type->height = 20;
font_type->size = 40;
*addr = (uint32_t)Hz20_006D;
break;
}
//搜
case 0xCBD1:
{
font_type->width = 14;
font_type->height = 20;
font_type->size = 40;
*addr = (uint32_t)Hz20_CBD1;
break;
}
//索
case 0xCBF7:
{
font_type->width = 14;
font_type->height = 20;
font_type->size = 40;
*addr = (uint32_t)Hz20_CBF7;
break;
}
//正
case 0xD5FD:
{
font_type->width = 14;
font_type->height = 20;
font_type->size = 40;
*addr = (uint32_t)Hz20_D5FD;
break;
}
//常
case 0xB3A3:
{
font_type->width = 14;
font_type->height = 20;
font_type->size = 40;
*addr = (uint32_t)Hz20_B3A3;
break;
}
//超
case 0xB3AC:
{
font_type->width = 14;
font_type->height = 20;
font_type->size = 40;
*addr = (uint32_t)Hz20_B3AC;
break;
}
//距
case 0xBEE0:
{
font_type->width = 14;
font_type->height = 20;
font_type->size = 40;
*addr = (uint32_t)Hz20_BEE0;
break;
}
//失
case 0xCAA7:
{
font_type->width = 14;
font_type->height = 20;
font_type->size = 40;
*addr = (uint32_t)Hz20_CAA7;
break;
}
//踪
case 0xD7D9:
{
font_type->width = 14;
font_type->height = 20;
font_type->size = 40;
*addr = (uint32_t)Hz20_D7D9;
break;
}
default:
{
return 0;
}
}
return 1;
}
3.将相应的字体宏定义填入字库文件头文件里
/**
* @brief 17*17点阵GB18030汉字
*/
#define GB18030_20X20 2
font.h
/**
* Copyright (c), 2015-2025
* @file font.h
* @brief 字库文件头文件
* @author jdh
* @date 2015/9/6
* @date 2015/9/7
*/
#ifndef _FONT_H_
#define _FONT_H_
/*********************************************************************
* 头文件
**********************************************************************/
#include "inf_lcd.h"
/*********************************************************************
* 宏定义
**********************************************************************/
/**
* @brief 点阵字符宏定义
*/
#define ________ 0x0
#define _______X 0x1
#define ______X_ 0x2
#define ______XX 0x3
#define _____X__ 0x4
#define _____X_X 0x5
#define _____XX_ 0x6
#define _____XXX 0x7
#define ____X___ 0x8
#define ____X__X 0x9
#define ____X_X_ 0xa
#define ____X_XX 0xb
#define ____XX__ 0xc
#define ____XX_X 0xd
#define ____XXX_ 0xe
#define ____XXXX 0xf
#define ___X____ 0x10
#define ___X___X 0x11
#define ___X__X_ 0x12
#define ___X__XX 0x13
#define ___X_X__ 0x14
#define ___X_X_X 0x15
#define ___X_XX_ 0x16
#define ___X_XXX 0x17
#define ___XX___ 0x18
#define ___XX__X 0x19
#define ___XX_X_ 0x1a
#define ___XX_XX 0x1b
#define ___XXX__ 0x1c
#define ___XXX_X 0x1d
#define ___XXXX_ 0x1e
#define ___XXXXX 0x1f
#define __X_____ 0x20
#define __X____X 0x21
#define __X___X_ 0x22
#define __X___XX 0x23
#define __X__X__ 0x24
#define __X__X_X 0x25
#define __X__XX_ 0x26
#define __X__XXX 0x27
#define __X_X___ 0x28
#define __X_X__X 0x29
#define __X_X_X_ 0x2a
#define __X_X_XX 0x2b
#define __X_XX__ 0x2c
#define __X_XX_X 0x2d
#define __X_XXX_ 0x2e
#define __X_XXXX 0x2f
#define __XX____ 0x30
#define __XX___X 0x31
#define __XX__X_ 0x32
#define __XX__XX 0x33
#define __XX_X__ 0x34
#define __XX_X_X 0x35
#define __XX_XX_ 0x36
#define __XX_XXX 0x37
#define __XXX___ 0x38
#define __XXX__X 0x39
#define __XXX_X_ 0x3a
#define __XXX_XX 0x3b
#define __XXXX__ 0x3c
#define __XXXX_X 0x3d
#define __XXXXX_ 0x3e
#define __XXXXXX 0x3f
#define _X______ 0x40
#define _X_____X 0x41
#define _X____X_ 0x42
#define _X____XX 0x43
#define _X___X__ 0x44
#define _X___X_X 0x45
#define _X___XX_ 0x46
#define _X___XXX 0x47
#define _X__X___ 0x48
#define _X__X__X 0x49
#define _X__X_X_ 0x4a
#define _X__X_XX 0x4b
#define _X__XX__ 0x4c
#define _X__XX_X 0x4d
#define _X__XXX_ 0x4e
#define _X__XXXX 0x4f
#define _X_X____ 0x50
#define _X_X___X 0x51
#define _X_X__X_ 0x52
#define _X_X__XX 0x53
#define _X_X_X__ 0x54
#define _X_X_X_X 0x55
#define _X_X_XX_ 0x56
#define _X_X_XXX 0x57
#define _X_XX___ 0x58
#define _X_XX__X 0x59
#define _X_XX_X_ 0x5a
#define _X_XX_XX 0x5b
#define _X_XXX__ 0x5c
#define _X_XXX_X 0x5d
#define _X_XXXX_ 0x5e
#define _X_XXXXX 0x5f
#define _XX_____ 0x60
#define _XX____X 0x61
#define _XX___X_ 0x62
#define _XX___XX 0x63
#define _XX__X__ 0x64
#define _XX__X_X 0x65
#define _XX__XX_ 0x66
#define _XX__XXX 0x67
#define _XX_X___ 0x68
#define _XX_X__X 0x69
#define _XX_X_X_ 0x6a
#define _XX_X_XX 0x6b
#define _XX_XX__ 0x6c
#define _XX_XX_X 0x6d
#define _XX_XXX_ 0x6e
#define _XX_XXXX 0x6f
#define _XXX____ 0x70
#define _XXX___X 0x71
#define _XXX__X_ 0x72
#define _XXX__XX 0x73
#define _XXX_X__ 0x74
#define _XXX_X_X 0x75
#define _XXX_XX_ 0x76
#define _XXX_XXX 0x77
#define _XXXX___ 0x78
#define _XXXX__X 0x79
#define _XXXX_X_ 0x7a
#define _XXXX_XX 0x7b
#define _XXXXX__ 0x7c
#define _XXXXX_X 0x7d
#define _XXXXXX_ 0x7e
#define _XXXXXXX 0x7f
#define X_______ 0x80
#define X______X 0x81
#define X_____X_ 0x82
#define X_____XX 0x83
#define X____X__ 0x84
#define X____X_X 0x85
#define X____XX_ 0x86
#define X____XXX 0x87
#define X___X___ 0x88
#define X___X__X 0x89
#define X___X_X_ 0x8a
#define X___X_XX 0x8b
#define X___XX__ 0x8c
#define X___XX_X 0x8d
#define X___XXX_ 0x8e
#define X___XXXX 0x8f
#define X__X____ 0x90
#define X__X___X 0x91
#define X__X__X_ 0x92
#define X__X__XX 0x93
#define X__X_X__ 0x94
#define X__X_X_X 0x95
#define X__X_XX_ 0x96
#define X__X_XXX 0x97
#define X__XX___ 0x98
#define X__XX__X 0x99
#define X__XX_X_ 0x9a
#define X__XX_XX 0x9b
#define X__XXX__ 0x9c
#define X__XXX_X 0x9d
#define X__XXXX_ 0x9e
#define X__XXXXX 0x9f
#define X_X_____ 0xa0
#define X_X____X 0xa1
#define X_X___X_ 0xa2
#define X_X___XX 0xa3
#define X_X__X__ 0xa4
#define X_X__X_X 0xa5
#define X_X__XX_ 0xa6
#define X_X__XXX 0xa7
#define X_X_X___ 0xa8
#define X_X_X__X 0xa9
#define X_X_X_X_ 0xaa
#define X_X_X_XX 0xab
#define X_X_XX__ 0xac
#define X_X_XX_X 0xad
#define X_X_XXX_ 0xae
#define X_X_XXXX 0xaf
#define X_XX____ 0xb0
#define X_XX___X 0xb1
#define X_XX__X_ 0xb2
#define X_XX__XX 0xb3
#define X_XX_X__ 0xb4
#define X_XX_X_X 0xb5
#define X_XX_XX_ 0xb6
#define X_XX_XXX 0xb7
#define X_XXX___ 0xb8
#define X_XXX__X 0xb9
#define X_XXX_X_ 0xba
#define X_XXX_XX 0xbb
#define X_XXXX__ 0xbc
#define X_XXXX_X 0xbd
#define X_XXXXX_ 0xbe
#define X_XXXXXX 0xbf
#define XX______ 0xc0
#define XX_____X 0xc1
#define XX____X_ 0xc2
#define XX____XX 0xc3
#define XX___X__ 0xc4
#define XX___X_X 0xc5
#define XX___XX_ 0xc6
#define XX___XXX 0xc7
#define XX__X___ 0xc8
#define XX__X__X 0xc9
#define XX__X_X_ 0xca
#define XX__X_XX 0xcb
#define XX__XX__ 0xcc
#define XX__XX_X 0xcd
#define XX__XXX_ 0xce
#define XX__XXXX 0xcf
#define XX_X____ 0xd0
#define XX_X___X 0xd1
#define XX_X__X_ 0xd2
#define XX_X__XX 0xd3
#define XX_X_X__ 0xd4
#define XX_X_X_X 0xd5
#define XX_X_XX_ 0xd6
#define XX_X_XXX 0xd7
#define XX_XX___ 0xd8
#define XX_XX__X 0xd9
#define XX_XX_X_ 0xda
#define XX_XX_XX 0xdb
#define XX_XXX__ 0xdc
#define XX_XXX_X 0xdd
#define XX_XXXX_ 0xde
#define XX_XXXXX 0xdf
#define XXX_____ 0xe0
#define XXX____X 0xe1
#define XXX___X_ 0xe2
#define XXX___XX 0xe3
#define XXX__X__ 0xe4
#define XXX__X_X 0xe5
#define XXX__XX_ 0xe6
#define XXX__XXX 0xe7
#define XXX_X___ 0xe8
#define XXX_X__X 0xe9
#define XXX_X_X_ 0xea
#define XXX_X_XX 0xeb
#define XXX_XX__ 0xec
#define XXX_XX_X 0xed
#define XXX_XXX_ 0xee
#define XXX_XXXX 0xef
#define XXXX____ 0xf0
#define XXXX___X 0xf1
#define XXXX__X_ 0xf2
#define XXXX__XX 0xf3
#define XXXX_X__ 0xf4
#define XXXX_X_X 0xf5
#define XXXX_XX_ 0xf6
#define XXXX_XXX 0xf7
#define XXXXX___ 0xf8
#define XXXXX__X 0xf9
#define XXXXX_X_ 0xfa
#define XXXXX_XX 0xfb
#define XXXXXX__ 0xfc
#define XXXXXX_X 0xfd
#define XXXXXXX_ 0xfe
#define XXXXXXXX 0xff
/*********************************************************************
* 字体定义
**********************************************************************/
/**
* @brief 17*17点阵GB18030汉字
*/
#define GB18030_17X17 1
/**
* @brief 17*17点阵GB18030汉字
*/
#define GB18030_20X20 2
/**
* @brief 24*24点阵GB18030汉字
*/
#define GB18030_24X24 3
/**
* @brief 30*30点阵GB18030汉字
*/
#define GB18030_30X30 4
/**
* @brief 37*37点阵粗体GB18030汉字
*/
#define GB18030_37X37B 5
/**
* @brief 40*40点阵粗体GB18030汉字
*/
#define GB18030_40X40B 6
/**
* @brief 48*48点阵GB18030汉字
*/
#define GB18030_48X48 7
/*********************************************************************
* 数据结构
**********************************************************************/
/**
* @brief 字体结构
*/
struct _Font_Type
{
uint8_t width;
uint8_t height;
uint8_t size;
};
/*********************************************************************
* 函数
**********************************************************************/
/**
* @brief 得到字体高度
* @param font:字体
* @retval 高度
*/
uint8_t font_get_height(uint8_t font);
/**
* @brief 读取字库
* @param font:字体
* @param c:待读取的字符
* @param font_type:返回的字体信息
* @param addr:数据存储地址
* @retval 读取结果.0:失败,1:成功
*/
uint8_t font_read(uint8_t font,uint16_t c,struct _Font_Type *font_type,uint32_t *addr);
#endif
4.将相应的接口填入字库文件源文件里
/**
* @brief 得到字体高度
* @param font:字体
* @retval 高度
*/
extern uint8_t GB18030_20X20_get_height(void);
/**
* @brief 得到地址
* @param font:字体
* @param ch:待读取的字符
* @param addr:数据存储地址
* @retval 读取结果.0:失败,1:成功
*/
extern uint8_t GB18030_20X20_get_address(uint16_t ch,struct _Font_Type *font_type,uint32_t *addr);
font_get_height函数与font_read函数也须要做相应改动。
font.c:
/**
* Copyright (c), 2015-2025
* @file font.c
* @brief 字库文件主文件
* @author jdh
* @date 2015/9/6
* @date 2015/9/7
*/
/*********************************************************************
* 头文件
**********************************************************************/
#include "font.h"
#include "string.h"
/**
* @brief 得到字体高度
* @param font:字体
* @retval 高度
*/
extern uint8_t GB18030_17X17_get_height(void);
/**
* @brief 得到地址
* @param font:字体
* @param ch:待读取的字符
* @param addr:数据存储地址
* @retval 读取结果.0:失败,1:成功
*/
extern uint8_t GB18030_17X17_get_address(uint16_t ch,struct _Font_Type *font_type,uint32_t *addr);
/**
* @brief 得到字体高度
* @param font:字体
* @retval 高度
*/
extern uint8_t GB18030_20X20_get_height(void);
/**
* @brief 得到地址
* @param font:字体
* @param ch:待读取的字符
* @param addr:数据存储地址
* @retval 读取结果.0:失败,1:成功
*/
extern uint8_t GB18030_20X20_get_address(uint16_t ch,struct _Font_Type *font_type,uint32_t *addr);
/**
* @brief 得到字体高度
* @param font:字体
* @retval 高度
*/
extern uint8_t GB18030_24X24_get_height(void);
/**
* @brief 得到地址
* @param font:字体
* @param ch:待读取的字符
* @param addr:数据存储地址
* @retval 读取结果.0:失败,1:成功
*/
extern uint8_t GB18030_24X24_get_address(uint16_t ch,struct _Font_Type *font_type,uint32_t *addr);
/**
* @brief 得到字体高度
* @param font:字体
* @retval 高度
*/
extern uint8_t GB18030_30X30_get_height(void);
/**
* @brief 得到地址
* @param font:字体
* @param ch:待读取的字符
* @param addr:数据存储地址
* @retval 读取结果.0:失败,1:成功
*/
extern uint8_t GB18030_30X30_get_address(uint16_t ch,struct _Font_Type *font_type,uint32_t *addr);
/**
* @brief 得到字体高度
* @param font:字体
* @retval 高度
*/
uint8_t GB18030_37X37B_get_height(void);
/**
* @brief 得到地址
* @param font:字体
* @param ch:待读取的字符
* @param addr:数据存储地址
* @retval 读取结果.0:失败,1:成功
*/
uint8_t GB18030_37X37B_get_address(uint16_t ch,struct _Font_Type *font_type,uint32_t *addr);
/**
* @brief 得到字体高度
* @param font:字体
* @retval 高度
*/
uint8_t GB18030_40X40B_get_height(void);
/**
* @brief 得到地址
* @param font:字体
* @param ch:待读取的字符
* @param addr:数据存储地址
* @retval 读取结果.0:失败,1:成功
*/
uint8_t GB18030_40X40B_get_address(uint16_t ch,struct _Font_Type *font_type,uint32_t *addr);
/**
* @brief 得到字体高度
* @param font:字体
* @retval 高度
*/
uint8_t GB18030_48X48_get_height(void);
/**
* @brief 得到地址
* @param font:字体
* @param ch:待读取的字符
* @param addr:数据存储地址
* @retval 读取结果.0:失败,1:成功
*/
uint8_t GB18030_48X48_get_address(uint16_t ch,struct _Font_Type *font_type,uint32_t *addr);
/*********************************************************************
* 静态变量
**********************************************************************/
///**
//* @brief 字体结构
//*/
//static struct _Font_Type Font_Type[FONT_NUM + 1];
///*********************************************************************
//* 静态函数
//**********************************************************************/
///**
//* @brief 初始化字体类型
//*/
//static void init_font_type(void);
/*********************************************************************
* 函数
**********************************************************************/
/**
* @brief 得到字体高度
* @param font:字体
* @retval 高度
*/
uint8_t font_get_height(uint8_t font)
{
switch (font)
{
case GB18030_17X17:
{
return GB18030_17X17_get_height();
}
case GB18030_20X20:
{
return GB18030_20X20_get_height();
}
case GB18030_24X24:
{
return GB18030_24X24_get_height();
}
case GB18030_30X30:
{
return GB18030_30X30_get_height();
}
case GB18030_37X37B:
{
return GB18030_37X37B_get_height();
}
case GB18030_40X40B:
{
return GB18030_40X40B_get_height();
}
case GB18030_48X48:
{
return GB18030_48X48_get_height();
}
default:
{
return 0;
}
}
}
/**
* @brief 读取字库
* @param font:字体
* @param c:待读取的字符
* @param font_type:返回的字体信息
* @param addr:数据存储地址
* @retval 读取结果.0:失败,1:成功
*/
uint8_t font_read(uint8_t font,uint16_t c,struct _Font_Type *font_type,uint32_t *addr)
{
switch (font)
{
case GB18030_17X17:
{
if (GB18030_17X17_get_address(c,font_type,addr))
{
return 1;
}
else
{
return 0;
}
}
case GB18030_20X20:
{
if (GB18030_20X20_get_address(c,font_type,addr))
{
return 1;
}
else
{
return 0;
}
}
case GB18030_24X24:
{
if (GB18030_24X24_get_address(c,font_type,addr))
{
return 1;
}
else
{
return 0;
}
}
case GB18030_30X30:
{
if (GB18030_30X30_get_address(c,font_type,addr))
{
return 1;
}
else
{
return 0;
}
}
case GB18030_37X37B:
{
if (GB18030_37X37B_get_address(c,font_type,addr))
{
return 1;
}
else
{
return 0;
}
}
case GB18030_40X40B:
{
if (GB18030_40X40B_get_address(c,font_type,addr))
{
return 1;
}
else
{
return 0;
}
}
case GB18030_48X48:
{
if (GB18030_48X48_get_address(c,font_type,addr))
{
return 1;
}
else
{
return 0;
}
}
default:
{
return 0;
}
}
}
5.读取并显示可參考下面函数：
/**
* @brief 在指定位置显示单个字符
* @param x:x坐标
* @param y:y坐标
* @param font:字体
* @param c:字符
*/
void gui_disp_char_at(uint16_t x,uint16_t y,uint8_t font,uint16_t c)
{
struct _Font_Type font_type;
//uint8_t buf[100] = {0};
uint8_t *buf_pt = 0;
uint16_t i = 0;
uint16_t j = 0;
uint8_t k = 0;
uint8_t bit = 0;
uint8_t num_valid_bit = 0;
uint8_t num_valid_byte = 0;
// //读取字体信息
// font_type = font_read_type(font);
//读取字符信息
font_read(font,c,&font_type,(uint32_t *)&buf_pt);
//buf_pt = buf;
//有效位数
num_valid_bit = font_type.width % 8;
//有效字节数
num_valid_byte = font_type.width / 8;
for (i = 0;i < font_type.height;i++)
{
for (j = 0;j < num_valid_byte;j++)
{
for (k = 0;k < 8;k++)
{
bit = (*buf_pt >> (7 - k)) & 0x1;
gui_interface_draw_pixel(x + j * 8 + k,y + i,bit);
}
buf_pt++;
}
for (k = 0;k < num_valid_bit;k++)
{
bit = (*buf_pt >> (7 - k)) & 0x1;
gui_interface_draw_pixel(x + j * 8 + k,y + i,bit);
}
if (num_valid_bit > 0)
{
buf_pt++;
}
}
}例:
gui_disp_char_at(0,0,GB18030_20X20,"正")
以上是关于为OLED屏添加GUI支持3：字库的主要内容，如果未能解决你的问题，请参考以下文章
支持鸿蒙OS的产品级SSD1306 OLED屏驱动库（MIT许可证开源）
1.3寸OLED 12864 sh1106带中文字库液晶屏介绍