uifont.c

嵌入工linux开发的源码

/*********************************************************************/
//	文 件 名：	uiFont.cpp
//	程序说明：	字体管理
//	程序设计：	张学平
//				2001.10.23		设计完成		说明文档：R004-S231-0001
//	程序审查：	宋军霞
//				2002.01.22		审查完成		说明文档：R004-S231-0001
//	项目编号：	R004-S231
//	版	  本：	V1.0
//	版    权：	Reality Plus Technology (ShenZhen) Co.,Ltd.
/*********************************************************************/
#include <string.h>

#include <uiFont.h>
#include <uiGraph.h>
#include <uiUtility.h>
#include <SysVar.h>

short   gFontType;			// 当前字体
short   gOldFontType;

/*
0x9D,0x40,0x57,0xE0,0x15,0x40,0x9C,0xA0,0x57,0x60,0x5C,
0x00,0x35,0x40,0x37,0xE0,0x5D,0x40,0xC9,0xA0,0x56,0xE1
*/

// 初始化字体系统
void guiInitFont(void)
{
	int i;

	gFontType = GUI_DEFAULT_FONT;		//系统当前字体与控件缺省字体相同
	gOldFontType = GUI_DEFAULT_FONT;

	guiUserInitfont();					//调用户字体初始化程序
}

// 设置当前字体
DLL_EXP(int) guiSetFont(int type)
{
	int langType;

	if(!(gShowFont[type].ShowChar)&&(!gShowFont[type].ShowWord))
		return STATUS_ERR;				// 在字符和文字显示函数均为空时，表示该字体无效

	langType = guiQueryLanguageType();
	if((type!=FONT_ENG12_BIG12)&&(langType==LANGUAGE_CHT))
		return STATUS_ERR;				

	gFontType = type;
	return STATUS_OK;
}

// 获取当前字体类型
DLL_EXP(int) guiGetFont(void) 
{
	return gFontType;
}

// 保存当前字体类型，并将新字体设置为当前字体
STATUS guiPushFont(int type)
{
	int langType;

	gOldFontType = gFontType;
	if(!(gShowFont[type].ShowChar)&&(!gShowFont[type].ShowWord))
		return STATUS_ERR;			// 在字符和文字显示函数均为空时，表示该字体无效

	langType = guiQueryLanguageType();
	if((type!=FONT_ENG12_BIG12)&&(langType==LANGUAGE_CHT))
		return STATUS_ERR;				

	gFontType = type;
	return STATUS_OK;
}

// 将被保存的字体恢复为当前字体
STATUS guiPopFont(void)
{
	/*
	int langType;

  langType = guiQueryLanguageType();
  if((gOldFontType!=FONT_ENG12_BIG12)&&(langType==LANGUAGE_CHT))
		return STATUS_ERR;				
	*/
	gFontType = gOldFontType;
	return STATUS_OK;
}

// 设置字体操作函数
DLL_EXP(void) guiSetFontOps(int type, TShowFont tShowFont)
{
	gShowFont[type] = tShowFont;
}

// 显示字符
DLL_EXP(void) guiShowChar(HNDL handle, const char ascii, int x, int y, int color, int style)
{
	(gShowFont[gFontType].ShowChar)(handle, ascii, x, y, color, style);
}

// 在矩形区域内显示字符
void _guiShowCharInView(TRect *rect, const char ascii, int x, int y, int color, int style)
{
	(gShowFont[gFontType].ShowCharInView)(rect, ascii, x, y, color, style);
}

// 获取字符宽度
DLL_EXP(short) guiGetCharWidth(const char ascii)
{
	return (gShowFont[gFontType].GetCharWidth)(ascii);
}

// 获取字符高度
DLL_EXP(short) guiGetCharHeight(void)
{
	return (gShowFont[gFontType].GetCharHeight)();
}

// 显示汉字
DLL_EXP(void) guiShowWord(HNDL handle, const char *pCode, int x, int y, int color, int style)
{
	(gShowFont[gFontType].ShowWord)(handle, pCode, x, y, color, style);
}

// 在矩形区域内显示汉字
void _guiShowWordInView(TRect *rect, const char *pCode, int x, int y, int color, int style)
{
	(gShowFont[gFontType].ShowWordInView)(rect, pCode, x, y, color, style);
}

// 获取汉字宽度
DLL_EXP(short) guiGetWordWidth(void)
{
	return (gShowFont[gFontType].GetWordWidth)();
}

// 获取汉字高度
DLL_EXP(short) guiGetWordHeight(void)
{
	return (gShowFont[gFontType].GetWordHeight)();
}

// 获取字符串高度
DLL_EXP(int)  guiGetStringHeight(void)
{
	int wordHeight, charHeight, strHeight;

	wordHeight = guiGetWordHeight();
	charHeight = guiGetCharHeight();
	strHeight = wordHeight>charHeight?wordHeight:charHeight;

	return strHeight;
}

// 获取字符串宽度
DLL_EXP(int)  guiGetStringWidth(const char *string)
{
	int i, len, iflag;
	BYTE *p;
	
	len = 0;
	p = (BYTE *)string;
	iflag = 0;
	
	while(*p)
	{
		if(iflag)
		{
			len += guiGetWordWidth()+FONT_CHAR_GAP;
			iflag = 0;
		}
		else
		{
			if(*p<0x80)
			{
				len += guiGetCharWidth(*p)+FONT_CHAR_GAP;
			}
			else
			{
				iflag = 1;
			}			
		}
		p++;
	}

	if(len)
		len -= FONT_CHAR_GAP;

	return(len);
}

// 在一个矩形区域内显示字符串，并自动换行
DLL_EXP(void) guiShowStringInArea(HNDL handle, const char *string,int x1, int y1, int x2, int y2, int color, int style)
{
	unsigned char ch1, ch2;
	unsigned char *pText;
	int left, top, right, bottom;
	int xPos, yPos, iRet;
	int wordHeight, charHeight, strHeight;
	TRect   ViewRect;
	int ViewLeft, ViewTop, ViewRight, ViewBottom;
	int i;

	// 获取裁剪区座标
	iRet = _guiGetHandleView(handle, &ViewLeft, &ViewTop, &ViewRight, &ViewBottom);
	if(iRet != STATUS_OK)
		return;

	ViewRect.left  = ViewLeft;   ViewRect.top    = ViewTop;
	ViewRect.right = ViewRight;  ViewRect.bottom = ViewBottom;

	left = x1;
	top  = y1;
	right = x2;
	bottom = y2;
	_guiConvertXY(handle, &left, &top);			//将相对座标转为绝对座标
	_guiConvertXY(handle, &right, &bottom);
	xPos = left;								//显示位置
	yPos = top;	

	wordHeight = guiGetWordHeight();
	charHeight = guiGetCharHeight();
	strHeight = wordHeight>charHeight?wordHeight:charHeight;
	pText = (unsigned char *)string;

	while(*pText)
	{
		ch1 = *pText;
		if(ch1<0x80)
		{
			if((xPos+guiGetCharWidth(ch1))>right)	// 不足以显示完一个字符时，换行
			{
				if(style)							// 不透明显示
				{
					for(i=xPos;i<=right;i++)		// 清除最后的显示
						_guiDrawVLineInView(&ViewRect,i,yPos,yPos+strHeight-1,color>>8);
					yPos+=strHeight;
					for(i=0;i<FONT_LINE_GAP;i++)	// 清除行间的显示
						_guiDrawHLineInView(&ViewRect,left,right,yPos++,color>>8);
				}
				else								// 透明显示
					yPos += strHeight+FONT_LINE_GAP;
				if((yPos+strHeight)>bottom)			//y座标超出裁剪区时，停止显示
					break;
				xPos = left;
			}
			_guiShowCharInView(&ViewRect, ch1, xPos, yPos, color, style);
			pText++;
			xPos += guiGetCharWidth(ch1);
		}
		else
		{
			if((xPos+guiGetWordWidth())>right)		// 不足以显示完一个汉字时，换行
			{
				if(style)							// 不透明显示
				{
					for(i=xPos;i<=right;i++)		// 清除最后的显示
						_guiDrawVLineInView(&ViewRect,i,yPos,yPos+strHeight-1,color>>8);
					yPos+=strHeight;
					for(i=0;i<FONT_LINE_GAP;i++)	// 清除行间的显示
						_guiDrawHLineInView(&ViewRect,left,right,yPos++,color>>8);
				}
				else								// 透明显示
					yPos += strHeight+FONT_LINE_GAP;
				if((yPos+strHeight)>bottom)			//y座标超出裁剪区时，停止显示
					break;
				xPos = left;
			}
			_guiShowWordInView(&ViewRect, (const char *)pText, xPos, yPos, color, style);
			pText+=2;
			xPos += guiGetWordWidth();
		}
		if(*pText && style)
		{
			for(i=0;i<FONT_CHAR_GAP;i++)
				_guiDrawVLineInView(&ViewRect,xPos++,yPos,yPos+guiGetWordHeight(),color>>8);
		}
		else
			xPos+=FONT_CHAR_GAP;
	}
}

// 显示字符串，并作相对于其所属区域裁剪，不会自动换行
DLL_EXP(void)  guiShowString(HNDL handle, const char *string,int x,int y, int color, int style)
{
	unsigned char ch1, ch2;
	unsigned char *pText;
	int left, top, iRet;
	TRect   ViewRect;
	int i;

	int ViewLeft, ViewTop, ViewRight, ViewBottom;

	iRet = _guiGetHandleView(handle, &ViewLeft, &ViewTop, &ViewRight, &ViewBottom);
	if(iRet!=STATUS_OK)
		return;

	ViewRect.left  = ViewLeft;   ViewRect.top    = ViewTop;
	ViewRect.right = ViewRight;  ViewRect.bottom = ViewBottom;

	left = x;
	top  = y;
	_guiConvertXY(handle, &left, &top);

	pText = (unsigned char *)string;

	while(*pText)
	{
		ch1 = *pText;
		if(ch1<0x80)
		{
			_guiShowCharInView(&ViewRect, ch1, left, top, color, style);
			pText++;
			left += guiGetCharWidth(ch1);
		}
		else
		{
			_guiShowWordInView(&ViewRect, (const char *)pText, left, top, color, style);
			pText+=2;			
			left += guiGetWordWidth();
		}
		if( style && *pText)
		{
			for(i=0;i<FONT_CHAR_GAP;i++)
				_guiDrawVLineInView(&ViewRect,left++,top,top+guiGetWordHeight(),color>>8);
		}
		else
			left+=FONT_CHAR_GAP;
	}
}

DLL_EXP(unsigned short *)guiGetWordBitmap(const char *pCode)
{
	return (gShowFont[gFontType].GetWordBitmap)(pCode);
}

DLL_EXP(unsigned short *)guiGetCharBitmap(const char ascii)
{
	return (gShowFont[gFontType].GetCharBitmap)(ascii);
}