graphics.cpp

采用并口控制液晶显示,适合PC104的嵌入式应用

#include "def.h"
#include "lcd.h"
#include "hzk.h"

#if (ASC_FONT_W == 6 && ASC_FONT_H == 12)
	#include "zm6X12.h"
	#define ASCK ASCII_6x12
#elif (ASC_FONT_W == 8 && ASC_FONT_H == 12)
	#include "zm8X12.h"
	#define ASCK ASCII_8x12
#elif (ASC_FONT_W == 8 && ASC_FONT_H == 16)
	#include "zm8X16.h"
	#define ASCK ASCII_8x16
#else
	#error "Font define error"
#endif


void LCD_DrawHz(u8 x,u8 y,const u8 *zm,u8 mode)
{
	u8 i,temp;
	
	for(i=0;i<32;i++)
	{
		temp = mode?~zm[i]:zm[i];
		if(i&1)
		{
			LCD_PutPixel8(x + 1, y + (i >> 1), temp);
		}
		else
		{
			LCD_PutPixel8(x, y + (i >> 1), temp);		
		}			
	}
}

// 向LCD中写一个ASCII字符的点阵
void LCD_Putc(u8 x, u8 y, u8 chASC, u8 mode)
{
	u8 i;
	u8 zm;		// 指向字母点阵数据
	
	for(i=0;i<ASC_FONT_H;i++)
	{
		zm = ASCK[chASC-' '][i];
		zm = mode? ~zm : zm;
		LCD_PutPixel8(x, y + i + (16-ASC_FONT_H), zm);
	}
}

void LCD_PutHz(u8 x, u8 y, u16 charactor, u8 mode)
{
	switch(charactor)
	{
		case '西': LCD_DrawHz(x, y, HZ_xi, mode);break;
		case '北': LCD_DrawHz(x, y, HZ_bei, mode);break;
		case '工': LCD_DrawHz(x, y, HZ_gong, mode);break;
		case '业': LCD_DrawHz(x, y, HZ_ye, mode);break;
		case '大': LCD_DrawHz(x, y, HZ_da, mode);break;
		case '学': LCD_DrawHz(x, y, HZ_xue, mode);break;
		default: break;
	}
}

void LCD_Puts(u8 x, u8 y, const u8 * str , u8 mode)
{
	u8 i=0;
	for(;*str!=0;str++)
	{
		if(*str<0x7F)
		{
			LCD_Putc(x + i, y, *str, mode);			/*是ASCII字符*/
			i+= 1;
		}
		else
		{
			U16 hz = *str;
			hz <<= 8;
			str++;
			hz+=*str;					/*将汉字GB码整合为int*/
			LCD_PutHz(x + i, y, (u16) hz, mode);				/*是汉字*/
			i+=2;
		}
	}
}

void LCD_DrawRec(u8 x, u8 y, u8 width, u8 height )
{
	u8 i;	
	for(i=0;i<height;i++)
	{
		LCD_PutPixel8(x, y + i, 0x80);
		LCD_PutPixel8(x + width -1, y + i, 0x01);
	}
	for(i=0;i<width;i++)
	{
		LCD_PutPixel8(x + i, y, 0xff);
		LCD_PutPixel8(x + i, y + height - 1, 0xff);
	}
}

void LCD_FillRec(u8 x, u8 y, u8 width, u8 height, u8 mode )
{
	u8 i,j;	
	u8 color;
	color = mode?0xff:0x00;
	for(j=0;j<height;j++)
		for(i=0;i<width;i++)
		{
			LCD_PutPixel8(x + i, y + j, color);
		}	
}
void LCD_DrawCol(u8 x, u8 y, u8 height, u8 mode )
{
	u8 i;
	u8 color;
	color = mode?0x80:0x00;
	for(i=0;i<height;i++)
	{
		LCD_PutPixel8(x, y + i, color);
	}	
}