/**
* @brief Gui draw font to GBK16.
* @param x,y,fc,bc,*s.
* @retval None
*/
void Gui_DrawFont_GBK16(uint16_t x, uint16_t y, uint16_t fc, uint16_t bc, uint8_t *s)
{
unsigned char i,j;
unsigned short k,x0;
x0=x;
LCD_CS_CLR;
while(*s)
{
/* ASCII character table from 32 to 128 */
if((*s) < 128)
{
k=*s;
if(k==13)
{
x=x0;
y+=16;
}
else
{
if (k>32) k-=32; else k=0;
for(i=0;i<16;i++)
for(j=0;j<8;j++)
{
if(asc16[k*16+i]&(0x80>>j))
Gui_DrawPoint(x+j,y+i,fc);
else
{
if (fc!=bc) Gui_DrawPoint(x+j,y+i,bc);
}
}
x+=8;
}
s++;
}
void Gui_DrawFont_GBK16(u16 x, u16 y, u16 fc, u16 bc, u8 *s)
{
unsigned char i,j;
unsigned short k,x0;
x0=x;
while(*s)
{
if((*s) < 128)
{
k=*s;
if (k==13)
{
x=x0;
y+=16;
}
else
{
if (k>32) k-=32; else k=0;
for(i=0;i<16;i++)
for(j=0;j<8;j++)
{
if(asc16[k*16+i]&(0x80>>j)) Gui_DrawPoint(x+j,y+i,fc);
else
{
if (fc!=bc) Gui_DrawPoint(x+j,y+i,bc);
}
}
x+=8;
}
s++;
}
static void send_glyph_byte_on_bakcground(uint16_t x,uint16_t y,uint8_t bajt, uint8_t width) {
uint8_t i;
for(i=0; i<width; i++ ) {
//if(bajt&0x80) Draw_pixel();
if(bajt&0x80)
Gui_DrawPoint(x+i,y,Color);
//else Draw_bk_pixel();
bajt<<=1;
}
}
/*
*********************************************************************************************************
* 函 数 名: FrameDisp
* 功能说明: 显示波形窗口的边框和刻度线
* 形 参：无
* 返 回 值: 无
*********************************************************************************************************
*/
static void FrameDisp(void)
{
uint16_t x, y;
/* 绘制一个实线矩形框 x, y, h, w */
LCD_DrawRect(9, 19, 202, 302, CL_WHITE);
/* 绘制垂直刻度点 */
for (x = 0; x < 13; x++)
{
for (y = 0; y < 41; y++)
{
Gui_DrawPoint(10 + (x * 25), 20 + (y * 5), CL_WHITE);
}
}
/* 绘制水平刻度点 */
for (y = 0; y < 9; y++)
{
for (x = 0; x < 61; x++)
{
Gui_DrawPoint(10 + (x * 5), 20 + (y * 25), CL_WHITE);
}
}
/* 绘制垂直中心刻度点 */
for (y = 0; y < 41; y++)
{
Gui_DrawPoint(9 + (6 * 25), 20 + (y * 5), CL_WHITE);
Gui_DrawPoint(11 + (6 * 25), 20 + (y * 5), CL_WHITE);
}
/* 绘制水平中心刻度点 */
for (x = 0; x < 61; x++)
{
Gui_DrawPoint(10 + (x * 5), 19 + (4 * 25), CL_WHITE);
Gui_DrawPoint(10 + (x * 5), 21 + (4 * 25), CL_WHITE);
}
}
/**
* @brief Gui draw Line.
* @param x0,y0,x1,y1,Color.
* @retval None
*/
void Gui_DrawLine(uint16_t x0, uint16_t y0,uint16_t x1, uint16_t y1,uint16_t Color)
{
/* -difference in x's
-difference in y's
-dx,dy * 2
-amount in pixel space to move during drawing
-amount in pixel space to move during drawing
-the discriminant i.e. error i.e. decision variable
-used for looping */
int dx,dy,dx2,dy2,x_inc,y_inc,error,index;
LCD_CS_CLR;
Lcd_SetXY(x0,y0);
/* Calculate X distance */
dx = x1-x0;
/* Calculate Y distance */
dy = y1-y0;
if (dx>=0)
{
x_inc = 1;
}
else
{
x_inc = -1;
dx = -dx;
}
if (dy>=0)
{
y_inc = 1;
}
else
{
y_inc = -1;
dy = -dy;
}
dx2 = dx << 1;
dy2 = dy << 1;
if (dx > dy)
{
/* initialize error */
error = dy2 - dx;
/* draw the line */
for (index=0; index <= dx; index++)
{
Gui_DrawPoint(x0,y0,Color);
/* test if error has overflowed */
if (error >= 0)
{
error-=dx2;
/* move to next line */
y0+=y_inc;
}
/* adjust the error term */
error+=dy2;
/* move to the next pixel */
x0+=x_inc;
}
}
else
{
/* initialize error term */
error = dx2 - dy;
/* draw the linedraw the line*/
for (index=0; index <= dy; index++)
{
/* set the pixel */
Gui_DrawPoint(x0,y0,Color);
/* test if error overflowed */
if (error >= 0)
{
error-=dy2;
/* move to next line */
x0+=x_inc;
}
/* adjust the error term */
error+=dx2;
/* move to the next pixel */
y0+=y_inc;
}
}
LCD_CS_SET;
}
/**
* @brief Gui circle.
* @param X,Y,R,fc.
* @retval None
*/
void Gui_Circle(uint16_t X,uint16_t Y,uint16_t R,uint16_t fc)
{
unsigned short a,b;
int c;
a=0;
b=R;
c=3-2*R;
LCD_CS_CLR;
while (a<b)
{
Gui_DrawPoint(X+a,Y+b,fc);
Gui_DrawPoint(X-a,Y+b,fc);
Gui_DrawPoint(X+a,Y-b,fc);
Gui_DrawPoint(X-a,Y-b,fc);
Gui_DrawPoint(X+b,Y+a,fc);
Gui_DrawPoint(X-b,Y+a,fc);
Gui_DrawPoint(X+b,Y-a,fc);
Gui_DrawPoint(X-b,Y-a,fc);
if(c<0) c=c+4*a+6;
else
{
c=c+4*(a-b)+10;
b-=1;
}
a+=1;
}
if (a==b)
{
Gui_DrawPoint(X+a,Y+b,fc);
Gui_DrawPoint(X+a,Y+b,fc);
Gui_DrawPoint(X+a,Y-b,fc);
Gui_DrawPoint(X-a,Y-b,fc);
Gui_DrawPoint(X+b,Y+a,fc);
Gui_DrawPoint(X-b,Y+a,fc);
Gui_DrawPoint(X+b,Y-a,fc);
Gui_DrawPoint(X-b,Y-a,fc);
}
LCD_CS_SET;
}
//画线函数，使用Bresenham 画线算法
void Gui_DrawLine(u16 x0, u16 y0,u16 x1, u16 y1,u16 Color)
{
int dx, // difference in x's
dy, // difference in y's
dx2, // dx,dy * 2
dy2,
x_inc, // amount in pixel space to move during drawing
y_inc, // amount in pixel space to move during drawing
error, // the discriminant i.e. error i.e. decision variable
index; // used for looping
Lcd_SetXY(x0,y0);
dx = x1-x0;//计算x距离
dy = y1-y0;//计算y距离
if (dx>=0)
{
x_inc = 1;
}
else
{
x_inc = -1;
dx = -dx;
}
if (dy>=0)
{
y_inc = 1;
}
else
{
y_inc = -1;
dy = -dy;
}
dx2 = dx << 1;
dy2 = dy << 1;
if (dx > dy)//x距离大于y距离，那么每个x轴上只有一个点，每个y轴上有若干个点
{//且线的点数等于x距离，以x轴递增画点
// initialize error term
error = dy2 - dx;
// draw the line
for (index=0; index <= dx; index++)//要画的点数不会超过x距离
{
//画点
Gui_DrawPoint(x0,y0,Color);
// test if error has overflowed
if (error >= 0) //是否需要增加y坐标值
{
error-=dx2;
// move to next line
y0+=y_inc;//增加y坐标值
} // end if error overflowed
// adjust the error term
error+=dy2;
// move to the next pixel
x0+=x_inc;//x坐标值每次画点后都递增1
} // end for
} // end if |slope| <= 1
else//y轴大于x轴，则每个y轴上只有一个点，x轴若干个点
{//以y轴为递增画点
// initialize error term
error = dx2 - dy;
// draw the line
for (index=0; index <= dy; index++)
{
// set the pixel
Gui_DrawPoint(x0,y0,Color);
// test if error overflowed
if (error >= 0)
{
error-=dy2;
// move to next line
x0+=x_inc;
} // end if error overflowed
// adjust the error term
error+=dx2;
// move to the next pixel
y0+=y_inc;
} // end for
} // end else |slope| > 1
}
void Gui_Circle(u16 X,u16 Y,u16 R,u16 fc)
{//Bresenham算法
unsigned short a,b;
int c;
a=0;
b=R;
c=3-2*R;
while (a<b)
{
Gui_DrawPoint(X+a,Y+b,fc); // 7
Gui_DrawPoint(X-a,Y+b,fc); // 6
Gui_DrawPoint(X+a,Y-b,fc); // 2
Gui_DrawPoint(X-a,Y-b,fc); // 3
Gui_DrawPoint(X+b,Y+a,fc); // 8
Gui_DrawPoint(X-b,Y+a,fc); // 5
Gui_DrawPoint(X+b,Y-a,fc); // 1
Gui_DrawPoint(X-b,Y-a,fc); // 4
if(c<0) c=c+4*a+6;
else
{
c=c+4*(a-b)+10;
b-=1;
}
a+=1;
}
if (a==b)
{
Gui_DrawPoint(X+a,Y+b,fc);
Gui_DrawPoint(X+a,Y+b,fc);
Gui_DrawPoint(X+a,Y-b,fc);
Gui_DrawPoint(X-a,Y-b,fc);
Gui_DrawPoint(X+b,Y+a,fc);
Gui_DrawPoint(X-b,Y+a,fc);
Gui_DrawPoint(X+b,Y-a,fc);
Gui_DrawPoint(X-b,Y-a,fc);
}
}
