Minigui学习---字符集

（1）获取系统的字符集：

const char* sys_charset = GetSysCharset (TRUE);

解析：

此接口在/usr/local/include/gdi.h文件中定义，原型如下：

/**
 * \fn const char* GUIAPI GetSysCharset (BOOL wchar)
 * \brief Gets the current system charset.
 *
 * This function gets the current system charset and returns the charset name.
 * By default, the system charset is ISO8859-1 (for single-byte charset) or
 * GB2312.1980-0 (for wide charset), but you can change it by modifying
 * \a MiniGUI.cfg.
 *
 * \param wchar Whether to retrive the wide charset supported currently.
 * \return The read-only buffer of charset name. If you pass \a wchar TRUE,
 *         This function may return NULL, if there is not any wide
 *         charset supported.
 */
MG_EXPORT const char* GUIAPI GetSysCharset (BOOL wchar);

 

其他相关函数：

MG_EXPORT int GUIAPI GetSysCharHeight (void);  //Gets the height of a character of the default system font.

MG_EXPORT int GUIAPI GetSysCharWidth (void);   //Gets the width of a single-byte character of the default system font

MG_EXPORT int GUIAPI GetSysCCharWidth (void);   //Gets the width of a multi-byte character of the default system font

 

例子：

在MiniGUI.cfg文件中的systemfont项目设置如下：

 43 [systemfont]
 44 font_number=6
 45 font0=rbf-fixed-rrncnn-8-16-ISO8859-1
 46 font1=*-fixed-rrncnn-*-16-GB2312
 47 font2=*-Courier-rrncnn-*-16-GB2312
 48 font3=*-SansSerif-rrncnn-*-16-GB2312
 49 font4=*-Times-rrncnn-*-16-GB2312
 50 font5=*-Helvetica-rrncnn-*-16-GB2312
 51
 52 default=0
 53 wchar_def=1
 54 fixed=1
 55 caption=2
 56 menu=3
 57 control=3

执行如下代码时：

printf("hjhe--sysfont a char height=%d\n",GetSysCharHeight());
printf("hjhe--sysfont single byte weight=%d\n",GetSysCharWidth());
printf("hjhe--sysfont multi byte weight=%d\n",GetSysCCharWidth());
printf("hjhe--sys_charset=%s\n",GetSysCharset (FALSE));

返回：hjhe--sysfont a char height=16
hjhe--sysfont single byte weight=8
hjhe--sysfont multi byte weight=16
hjhe--sys_charset=ISO8859-1

当执行如下代码时：

printf("hjhe--sysfont a char height=%d\n",GetSysCharHeight());
printf("hjhe--sysfont single byte weight=%d\n",GetSysCharWidth());
printf("hjhe--sysfont multi byte weight=%d\n",GetSysCCharWidth());
printf("hjhe--sys_charset=%s\n",GetSysCharset (TRUE));

返回：

hjhe--sysfont a char height=16
hjhe--sysfont single byte weight=8
hjhe--sysfont multi byte weight=16
hjhe--sys_charset=GB2312-0

 

(2)字符集定义：

在/usr/local/include/gdi.h文件中定义了相关字符集宏：

#define FONT_CHARSET_US_ASCII       "US-ASCII"

#define FONT_CHARSET_ISO8859_1      "ISO8859-1"
#define FONT_CHARSET_ISO8859_2      "ISO8859-2"
#define FONT_CHARSET_ISO8859_3      "ISO8859-3"
#define FONT_CHARSET_ISO8859_4      "ISO8859-4"
#define FONT_CHARSET_ISO8859_5      "ISO8859-5"
#define FONT_CHARSET_ISO8859_6      "ISO8859-6"
#define FONT_CHARSET_ISO8859_7      "ISO8859-7"
#define FONT_CHARSET_ISO8859_8      "ISO8859-8"
#define FONT_CHARSET_ISO8859_9      "ISO8859-9"
#define FONT_CHARSET_ISO8859_10     "ISO8859-10"
#define FONT_CHARSET_ISO8859_11     "ISO8859-11"
#define FONT_CHARSET_ISO8859_12     "ISO8859-12"
#define FONT_CHARSET_ISO8859_13     "ISO8859-13"
#define FONT_CHARSET_ISO8859_14     "ISO8859-14"
#define FONT_CHARSET_ISO8859_15     "ISO8859-15"
#define FONT_CHARSET_ISO8859_16     "ISO8859-16"

#define FONT_CHARSET_EUC_CN         "EUC-CN"

/**
 * \def FONT_CHARSET_GB1988_0
 * \brief EUC encoding of GB1988 charset, treat as ISO8859-1.
 */
#define FONT_CHARSET_GB1988_0       "GB1988-0"     

/**
 * \def FONT_CHARSET_GB2312_0
 * \brief EUC encoding of GB2312 charset.
 */
#define FONT_CHARSET_GB2312_0       "GB2312-0"     
#define FONT_CHARSET_GBK            "GBK"

/**
 * \def FONT_CHARSET_GB18030_0
 * \brief EUC encoding of GB18030 charset.
 */
#define FONT_CHARSET_GB18030_0      "GB18030-0"    
#define FONT_CHARSET_BIG5           "BIG5"

/**
 * \def FONT_CHARSET_EUCTW
 * \brief EUC encoding of CNS11643 charset, not supported.
 */
#define FONT_CHARSET_EUCTW          "EUC-TW"       
#define FONT_CHARSET_EUCKR          "EUC-KR"

/**
 * \def FONT_CHARSET_KSC5636_0
 * \brief EUC encoding of KSC5636 charset, treat as ISO8859-1.
 */
#define FONT_CHARSET_KSC5636_0      "KSC5636-0"    

/**
 * \def FONT_CHARSET_KSC5601_0
 * \brief EUC encoding of KSC5601 charset.
 */
#define FONT_CHARSET_KSC5601_0      "KSC5601-0"    
#define FONT_CHARSET_EUCJP          "EUC-JP"

/**
 * \def FONT_CHARSET_JISX0201_0
 * \brief EUC encoding of JISX0201 charset.
 */
#define FONT_CHARSET_JISX0201_0     "JISX0201-0"   

/**
 * \def FONT_CHARSET_JISX0208_0
 * \brief EUC encoding of JISX0208 charset.
 */
#define FONT_CHARSET_JISX0208_0     "JISX0208-0"   
#define FONT_CHARSET_SHIFTJIS       "SHIFT-JIS"

/**
 * \def FONT_CHARSET_JISX0201_1
 * \brief Shift-JIS encoding of JISX0201 charset
 */
#define FONT_CHARSET_JISX0201_1     "JISX0201-1"   

/**
 * \def FONT_CHARSET_JISX0208_1
 * \brief Shift-JIS encoding of JISX0208 charset.
 */
#define FONT_CHARSET_JISX0208_1     "JISX0208-1"   

/**
 * \def FONT_CHARSET_ISO_10646_1
 * \brief UCS-2 encoding of UNICODE.
 */
#define FONT_CHARSET_ISO_10646_1    "ISO-10646-1"  

#define FONT_CHARSET_UTF8           "UTF-8"