apis.c

本程序在S3C44B0 uClinux的嵌入式GUI

#include <stdio.h>
#include <unistd.h>
#include <fcntl.h>
#include <sys/mman.h>
#include <sys/types.h>

#include <linux/ppw.h>


void LCD_Init(void)
{
	StartApplication();
}

void LCD_Clear( char WorB )
{
	GraphicsContext gc;
	RectangleType r={0,0,192,64};
	
	gc.color = (WorB=='B')? 1:0;
	PntFillRectangle(r,&gc);
}

 void LCD6963_ClearScreen( void )
 {
    LCD_Clear( 'W' );
 }

void LCD_SubScrClr(int y1,int x1,int y2,int x2)
{
	GraphicsContext gc;
	RectangleType r={x1,y1,x2,y2};
	
	gc.color = 0;
	PntFillRectangle(r,&gc);
}

 //清空当前位置后面的行 (x,y) 2003-2-27
 //Row 当前行号,Col 起始列号,SorD 单行或双行高('S'/'D')
 //'W'->白底黑字/'B'->黑底白字
 void LCD_ClearOneLine(int Row,int Col,char SorD,char WorB)
 {
   char ss[8];
   memset( ss,0,8 );
   LCD_DisplayOneLine( Row,Col,ss,'D', (WorB=='B')? 1:0, 1 );
 }

 //显示一字  (x,y,Hch,Lch) 2003-2-27
 //返回 本字符显示所占用的列数
 //Row 当前行号,Col 起始列号
 //Hch 汉字高字节,Lch 汉字低字节,SorD 单行或双行高(SorD 当Hch<0x80时,SorD才有效('S'/'D'))
 //'W'->白底黑字/'B'->黑底白字
 int LCD_DisplayOneChr(int Row,int Col,BYTE Hch,BYTE Lch,char SorD,char WorB)
 {  BYTE chr_str[8];
    int Half_flag;   //=1 半角,=2 全角
    Half_flag  = 1;

    memset( chr_str,0,8 );
    chr_str[0] = Hch; chr_str[1] = Lch;
    LCD_DisplayOneLine( Row,Col,chr_str,'D', (WorB=='B')? 1:0, 0 );
 
    if( Hch >= 0x80 ) Half_flag = 2;
   
    return  Half_flag * 8; 
 }

void LCD_DrawLine( int x1,int y1,int x2,int y2 )
{
	PntDrawLine(y1,x1,y2,x2,1);
}

//画 横线，点坐标
void LCD_DrawH_Line( int x1,int y1,int y2,char WorB )
{
       PntDrawLine(y1,x1,y2,x1,1);
}

//画 竖线，点坐标
void LCD_DrawV_Line( int x1,int y1,int x2,char WorB )
{
       PntDrawLine(y1,x1,y1,x2,1);
}

/*******************************************************
 *
 *	import: 
 *		x,y:			left-top corner
 *		str:			the string to display
 *		wor_b:		1 -- black background white charactor, 0 -- white background black chactor
 *		clr_flag:	clear the right side in this line
 *
 *******************************************************/
//y range : 0,2,4,6,8 ?
//x range : 0-191    ??
//str 字符串
//char SorD 
//char WorB 
//clr_flg
void LCD_DisplayOneLine( int y,int x,unsigned char *str,char SorD,unsigned char wor_b,int clr_flag )
{
	GraphicsContext gc;
	RectangleType r;
	int w,h;
        
	y = (y>=8)? 52:((y & 1)? (y/2*13+10):(y / 2) * 13);	//poly sun meng add
        //y = (y>=8)? 52:((y / 2) * 13);	//poly sun meng add
	
	// get the font height for clear background purpose
	h = FntGetCurrentFontHeight();
	w = FntGetStringWidth(str,0);;
	//printf("str:%s,w:%d\n",str,w);
	// clear the background
	if (wor_b=='B' || wor_b ) gc.color = 1; else gc.color = 0;
        //if (wor_b == 'W') gc.color = 0;
        //if ( wor_b ) gc.color = 1; else gc.color = 0;
	r.left = x;r.top = y;
	r.bottom = r.top + h - 2; //poly sun meng change : -2
	if (clr_flag) r.right = 192; else r.right = r.left + w;
	PntFillRectangle(r,&gc);
	
	// display the string
	if (wor_b) gc.color = 0; else gc.color = 1;
	FntDrawString(x,y,str,&gc);
}