Guilite字库工具

前言

使用方法

离线字库解析

工具链接

前言

最近通过Qt写了一个Guilite 字库工具>Guilite 字库工具，相比原始工具，主要有以下几个优点：

（1）支持同时生成多套字库

（2）支持离线字库生成

（3）支持离线字库导入

（4）字库生成速度更快

使用方法

（1）打开工具之后点击“增加字体”

（2）字体选择完成之后输入字库内容

（3）点击生成字库

字库生成完成之后，会生成一个.cpp字库和.bin离线字库

（4）字库导入

有时我们需要在已有字库上进行增删，那么可以选择“字库导入”，选择正确的离线字库之后，工具会自动导入字库。

离线字库解析

（1）头文件

#ifndef FONT_PARSER_H
#define FONT_PARSER_H
#include <string>#include "GuiLite.h"class FontParser{
public:static LATTICE_FONT_INFO* getFontFromBin(std::string fontPath);static int releaseFont(LATTICE_FONT_INFO* pFont);
};
#endif

（2）cpp文件

#include <stdio.h>
#include <string.h>
#include <stdlib.h>
#include <stdint.h>#include <string>#include "FontParser.h"#define FONT_PRINT(info,...)\
printf("[%s][%d]" info "",__FILE__,__LINE__,##__VA_ARGS__);class AutoCloseFile {
public:AutoCloseFile(FILE* fp):m_pFp(fp){}~AutoCloseFile(void){if (m_pFp){fclose(m_pFp);}}
private:FILE* m_pFp = nullptr;
};inline int32_t getFileRemainLen_(FILE* fp)
{size_t curPos = ftell(fp);fseek(fp,0,SEEK_END);size_t endPos = ftell(fp);fseek(fp,curPos,SEEK_SET);return endPos - curPos;
}LATTICE_FONT_INFO* FontParser::getFontFromBin(std::string path)
{FILE* fp = fopen(path.c_str(),"rb");if(NULL == fp){FONT_PRINT("fopen %s fail!\n",path.c_str());return NULL;}AutoCloseFile closeFile(fp);char startCode[5];char fontInfo[64];char version;uint8_t fixCode[4];uint32_t utf_8;uint16_t fontWidth;uint16_t fontHeight;uint32_t fontCount;uint32_t dataCount;int32_t realCount;memset((void*)startCode,0,5);if(getFileRemainLen_(fp) < 4){FONT_PRINT("%s init fail!\n",path.c_str());return NULL;}fread((void*)startCode,1,4,fp);//读取起始码if(strcmp(startCode,"font") != 0){FONT_PRINT("%s init fail,%s\n",path.c_str(),startCode);return NULL;}//读取版本号if(getFileRemainLen_(fp) < 1){FONT_PRINT("%s init fail!\n",path.c_str());return NULL;}fread((void*)&version,1,1,fp);//读取字库信息if(getFileRemainLen_(fp) < 64){FONT_PRINT("%s init fail!\n",path.c_str());return NULL;}memset((void*)fontInfo,0,64);fread((void*)fontInfo,1,64,fp);//读取固定码if(getFileRemainLen_(fp) < 4){FONT_PRINT("%s init fail!\n",path.c_str());return NULL;}fread((void*)fixCode,1,4,fp);if(0xff != fixCode[0] || 0xff != fixCode[1] || 0xff != fixCode[2]|| 0xff != fixCode[3]){FONT_PRINT("%s init fail!\n",path.c_str());return NULL;}//读取字高度if(getFileRemainLen_(fp) < 2){FONT_PRINT("%s init fail!\n",path.c_str());return NULL;}fread((void*)&fontHeight,1,2,fp);//读取字库总个数if(getFileRemainLen_(fp) < 4){FONT_PRINT("%s init fail!\n",path.c_str());return NULL;}fread((void*)&fontCount,1,4,fp);LATTICE_FONT_INFO* pFont = (LATTICE_FONT_INFO*)malloc(sizeof(LATTICE_FONT_INFO));if(NULL == pFont){FONT_PRINT("%s init fail!\n",path.c_str());return NULL;}pFont->count = fontCount;pFont->height = fontHeight;FONT_PRINT("font count:%d\n",fontCount);pFont->lattice_array = (LATTICE*)calloc(fontCount,sizeof(LATTICE));if(NULL == pFont->lattice_array){free((void*)pFont);FONT_PRINT("%s init fail!\n",path.c_str());return NULL;}realCount = 0;for(int32_t i = 0;i < fontCount;i++){//读取固定码if(getFileRemainLen_(fp) < 4){break;}fread((void*)fixCode,1,4,fp);if(0xff != fixCode[0] || 0xff != fixCode[1] || 0xff != fixCode[2]|| 0xff != fixCode[3]){break;}//读取utf-8码if(getFileRemainLen_(fp) < 4){break;}fread((void*)&utf_8,1,4,fp);//读取宽度if(getFileRemainLen_(fp) < 2){break;}fread((void*)&fontWidth,1,2,fp);//读取点数if(getFileRemainLen_(fp) < 4){break;}fread((void*)&dataCount,1,4,fp);if(getFileRemainLen_(fp) < dataCount){break;}pFont->lattice_array[i].utf8_code = utf_8;pFont->lattice_array[i].width = fontWidth;pFont->lattice_array[i].pixel_buffer = (uint8_t*)calloc(1,dataCount);if(NULL == pFont->lattice_array[i].pixel_buffer){break;}fread((void*)pFont->lattice_array[i].pixel_buffer,1,dataCount,fp);realCount++;}if(realCount != fontCount){for(int32_t i = 0;i < fontCount;i++){if(NULL != pFont->lattice_array[i].pixel_buffer){free((void*)pFont->lattice_array[i].pixel_buffer);}}free((void*)pFont->lattice_array);free((void*)pFont);FONT_PRINT("%s init fail!\n",path.c_str());FONT_PRINT("info count:%d,real count:%d\n",fontCount,realCount);return NULL;}FONT_PRINT("%s init success!\n",path.c_str());FONT_PRINT("font info:%s\n",path.c_str());return pFont;
}int FontParser::releaseFont(LATTICE_FONT_INFO* pFont)
{if(NULL == pFont){return -1;}if(NULL == pFont->lattice_array){free((void*)pFont);return 0;}for(int32_t i = 0;i < pFont->count;i++){if(pFont->lattice_array[i].pixel_buffer){free((void*)pFont->lattice_array[i].pixel_buffer);}}free((void*)pFont->lattice_array);free((void*)pFont);return 0;
}