📄 lcd.c
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// 要判断当前点是否在有效范围内
if( (draw_x0<=GUI_LCM_XMAX)&&(draw_y0>=0) )
{
point.x = draw_x0;
point.y = draw_y0;
LCDDrawPoint( &point );
}
if( (draw_x1>=0)&&(draw_y1>=0) )
{
point.x = draw_x1;
point.y = draw_y1;
LCDDrawPoint( &point );
}
if( (draw_x2<=GUI_LCM_XMAX)&&(draw_y2<=GUI_LCM_YMAX) )
{
point.x = draw_x2;
point.y = draw_y2;
LCDDrawPoint( &point );
}
if( (draw_x3>=0)&&(draw_y3<=GUI_LCM_YMAX) )
{
point.x = draw_x3;
point.y = draw_y3;
LCDDrawPoint( &point );
}
if( (draw_x4<=GUI_LCM_XMAX)&&(draw_y4>=0) )
{
point.x = draw_x4;
point.y = draw_y4;
LCDDrawPoint( &point );
}
if( (draw_x5>=0)&&(draw_y5>=0) )
{
point.x = draw_x5;
point.y = draw_y5;
LCDDrawPoint( &point );
}
if( (draw_x6<=GUI_LCM_XMAX)&&(draw_y6<=GUI_LCM_YMAX) )
{
point.x = draw_x6;
point.y = draw_y6;
LCDDrawPoint( &point );
}
if( (draw_x7>=0)&&(draw_y7<=GUI_LCM_YMAX) )
{
point.x = draw_x7;
point.y = draw_y7;
LCDDrawPoint( &point );
}
}
}
*/
/*================================================================================
画实心的圆
================================================================================*/
/*void GUI_DrawCircleFill( CIRCLE* pCircle )
{
INT8S draw_x0, draw_y0; // 刽图点坐标变量
INT8S draw_x1, draw_y1;
INT8S draw_x2, draw_y2;
INT8S draw_x3, draw_y3;
INT8S draw_x4, draw_y4;
INT8S draw_x5, draw_y5;
INT8S draw_x6, draw_y6;
INT8S draw_x7, draw_y7;
INT8S fill_x0, fill_y0; // 填充所需的变量，使用垂直线填充
INT8S fill_x1;
INT8S xx, yy; // 画圆控制变量
INT8S di; // 决策变量
POINT point;
LINE line;
point.Color = pCircle->Color;
line.Color = pCircle->Color;
// 参数过滤
if(0==pCircle->r) return;
// 计算出4个特殊点(0、90、180、270度)，进行显示
point.x = draw_x0 = draw_x1 = pCircle->x;
point.y = draw_y0 = draw_y1 = pCircle->y + pCircle->r;
if(draw_y0<GUI_LCM_YMAX)
{
LCDDrawPoint( &point );
}
point.x = draw_x2 = draw_x3 = pCircle->x;
point.y = draw_y2 = draw_y3 = pCircle->y - pCircle->r;
if(draw_y2>=0)
{
LCDDrawPoint( &point );
}
point.x = draw_x4 = draw_x6 = pCircle->x + pCircle->r;
point.y = draw_y4 = draw_y6 = pCircle->y;
if(draw_x4<GUI_LCM_XMAX)
{
LCDDrawPoint( &point ); // 0度
fill_x1 = draw_x4;
}
else
{
fill_x1 = GUI_LCM_XMAX;
}
fill_y0 = pCircle->y; // 设置填充线条起始点fill_x0
fill_x0 = pCircle->x - pCircle->r; // 设置填充线条结束点fill_y1
if(fill_x0<0) fill_x0 = 0;
line.xs = fill_x0;
line.ys = fill_y0;
line.ye = fill_y0;
line.xe = fill_x1;
LCDDrawHRLine( &line );
point.x = draw_x5 = draw_x7 = pCircle->x - pCircle->r;
point.y = draw_y5 = draw_y7 = pCircle->y;
if(draw_x5>=0)
{
LCDDrawPoint( &point ); // 180度
}
if(1==pCircle->r) return;
// 使用Bresenham法进行画圆
di = 3 - 2*pCircle->r; // 初始化决策变量
xx = 0;
yy = pCircle->r;
while(xx<yy)
{ if(di<0)
{ di += 4*xx + 6;
}
else
{ di += 4*(xx - yy) + 10;
yy--;
draw_y0--;
draw_y1--;
draw_y2++;
draw_y3++;
draw_x4--;
draw_x5++;
draw_x6--;
draw_x7++;
}
xx++;
draw_x0++;
draw_x1--;
draw_x2++;
draw_x3--;
draw_y4++;
draw_y5++;
draw_y6--;
draw_y7--;
// 要判断当前点是否在有效范围内
if( (draw_x0<=GUI_LCM_XMAX)&&(draw_y0>=0) )
{
point.x = draw_x0;
point.y = draw_y0;
LCDDrawPoint( &point );
}
if( (draw_x1>=0)&&(draw_y1>=0) )
{
point.x = draw_x1;
point.y = draw_y1;
LCDDrawPoint( &point );
}
// 第二点水直线填充(下半圆的点)
if(draw_x1>=0)
{ // 设置填充线条起始点fill_x0
fill_x0 = draw_x1;
// 设置填充线条起始点fill_y0
fill_y0 = draw_y1;
if(fill_y0>GUI_LCM_YMAX) fill_y0 = GUI_LCM_YMAX;
if(fill_y0<0) fill_y0 = 0;
// 设置填充线条结束点fill_x1
fill_x1 = pCircle->x*2 - draw_x1;
if(fill_x1>GUI_LCM_XMAX) fill_x1 = GUI_LCM_XMAX;
line.xs = fill_x0;
line.xe = fill_x1;
line.ys = line.ye = fill_y0;
LCDDrawHRLine( &line );
}
if( (draw_x2<=GUI_LCM_XMAX)&&(draw_y2<=GUI_LCM_YMAX) )
{
point.x = draw_x2;
point.y = draw_y2;
LCDDrawPoint( &point );
}
if( (draw_x3>=0)&&(draw_y3<=GUI_LCM_YMAX) )
{
point.x = draw_x3;
point.y = draw_y3;
LCDDrawPoint( &point );
}
// 第四点垂直线填充(上半圆的点)
if(draw_x3>=0)
{ // 设置填充线条起始点fill_x0
fill_x0 = draw_x3;
// 设置填充线条起始点fill_y0
fill_y0 = draw_y3;
if(fill_y0>GUI_LCM_YMAX) fill_y0 = GUI_LCM_YMAX;
if(fill_y0<0) fill_y0 = 0;
// 设置填充线条结束点fill_x1
fill_x1 = pCircle->x*2 - draw_x3;
if(fill_x1>GUI_LCM_XMAX) fill_x1 = GUI_LCM_XMAX;
line.xs = fill_x0;
line.xe = fill_x1;
line.ys = line.ye = fill_y0;
LCDDrawHRLine( &line );
}
if( (draw_x4<=GUI_LCM_XMAX)&&(draw_y4>=0) )
{
point.x = draw_x4;
point.y = draw_y4;
LCDDrawPoint( &point );
}
if( (draw_x5>=0)&&(draw_y5>=0) )
{
point.x = draw_x5;
point.y = draw_y5;
LCDDrawPoint( &point );
}
// 第六点垂直线填充(上半圆的点)
if(draw_x5>=0)
{ // 设置填充线条起始点fill_x0
fill_x0 = draw_x5;
// 设置填充线条起始点fill_y0
fill_y0 = draw_y5;
if(fill_y0>GUI_LCM_YMAX) fill_y0 = GUI_LCM_YMAX;
if(fill_y0<0) fill_y0 = 0;
// 设置填充线条结束点fill_x1
fill_x1 = pCircle->x*2 - draw_x5;
if(fill_x1>GUI_LCM_XMAX) fill_x1 = GUI_LCM_XMAX;
line.xs = fill_x0;
line.xe = fill_x1;
line.ys = line.ye = fill_y0;
LCDDrawHRLine( &line );
}
if( (draw_x6<=GUI_LCM_XMAX)&&(draw_y6<=GUI_LCM_YMAX) )
{
point.x = draw_x6;
point.y = draw_y6;
LCDDrawPoint( &point );
}
if( (draw_x7>=0)&&(draw_y7<=GUI_LCM_YMAX) )
{
point.x = draw_x7;
point.y = draw_y7;
LCDDrawPoint( &point );
}
// 第八点垂直线填充(上半圆的点)
if(draw_x7>=0)
{ // 设置填充线条起始点fill_x0
fill_x0 = draw_x7;
// 设置填充线条起始点fill_y0
fill_y0 = draw_y7;
if(fill_y0>GUI_LCM_YMAX) fill_y0 = GUI_LCM_YMAX;
if(fill_y0<0) fill_y0 = 0;
// 设置填充线条结束点fill_x1
fill_x1 = pCircle->x*2 - draw_x7;
if(fill_x1>GUI_LCM_XMAX) fill_x1 = GUI_LCM_XMAX;
line.xs = fill_x0;
line.xe = fill_x1;
line.ys = line.ye = fill_y0;
LCDDrawHRLine( &line );
}
}
} */
/*================================================================================
绘制空心的椭圆
================================================================================*/
/*void GUI_DrawEllipse( ELLIPSE* pEllipse )
{
INT32S draw_x0, draw_y0; // 刽图点坐标变量
INT32S draw_x1, draw_y1;
INT32S draw_x2, draw_y2;
INT32S draw_x3, draw_y3;
INT32S xx, yy; // 画图控制变量
INT32S center_x, center_y; // 椭圆中心点坐标变量
INT32S radius_x, radius_y; // 椭圆的半径，x轴半径和y轴半径
INT32S radius_xx, radius_yy; // 半径乘平方值
INT32S radius_xx2, radius_yy2; // 半径乘平方值的两倍
INT32S di; // 定义决策变量
POINT point;
point.Color = pEllipse->Color;
//* 参数过滤 *
if( (pEllipse->xs == pEllipse->xe ) ||
(pEllipse->ys == pEllipse->ye ) ) return;
//* 计算出椭圆中心点坐标 *
center_x = (pEllipse->xs + pEllipse->xe) >> 1;
center_y = (pEllipse->ys + pEllipse->ye) >> 1;
//* 计算出椭圆的半径，x轴半径和y轴半径 *
if(pEllipse->xs > pEllipse->xe)
{ radius_x = (pEllipse->xs - pEllipse->xe) >> 1;
}
else
{ radius_x = (pEllipse->xe - pEllipse->xs) >> 1;
}
if(pEllipse->ys > pEllipse->ye)
{ radius_y = (pEllipse->ys - pEllipse->ye) >> 1;
}
else
{ radius_y = (pEllipse->ye - pEllipse->ys) >> 1;
}
//* 计算半径平方值 *
radius_xx = radius_x * radius_x;
radius_yy = radius_y * radius_y;
//* 计算半径平方值乘2值 *
radius_xx2 = radius_xx<<1;
radius_yy2 = radius_yy<<1;
//* 初始化画图变量 *
xx = 0;
yy = radius_y;
di = radius_yy2 + radius_xx - radius_xx2*radius_y ; // 初始化决策变量
//* 计算出椭圆y轴上的两个端点坐标，作为作图起点 *
draw_x0 = draw_x1 = draw_x2 = draw_x3 = center_x;
draw_y0 = draw_y1 = center_y + radius_y;
draw_y2 = draw_y3 = center_y - radius_y;
point.x = draw_x0;
point.y = draw_y0;
LCDDrawPoint( &point );
point.x = draw_x2;
point.y = draw_y2;
LCDDrawPoint( &point ); // 画y轴上的两个端点
while( (radius_yy*xx) < (radius_xx*yy) )
{ if(di<0)
{ di+= radius_yy2*(2*xx+3);
}
else
{ di += radius_yy2*(2*xx+3) + 4*radius_xx - 4*radius_xx*yy;
yy--;
draw_y0--;
draw_y1--;
draw_y2++;
draw_y3++;
}
xx ++; // x轴加1
draw_x0++;
draw_x1--;
draw_x2++;
draw_x3--;
point.x = draw_x0;
point.y = draw_y0;
LCDDrawPoint( &point );
point.x = draw_x1;
point.y = draw_y1;
LCDDrawPoint( &point );
point.x = draw_x2;
point.y = draw_y2;
LCDDrawPoint( &point );
point.x = draw_x3;
point.y = draw_y3;
LCDDrawPoint( &point );
}
di = radius_xx2*(yy-1)*(yy-1) + radius_yy2*xx*xx + radius_yy + radius_yy2*xx - radius_xx2*radius_yy;
while(yy>=0)
{ if(di<0)
{ di+= radius_xx2*3 + 4*radius_yy*xx + 4*radius_yy - 2*radius_xx2*yy;
xx ++; // x轴加1
draw_x0++;
draw_x1--;
draw_x2++;
draw_x3--;
}
else
{ di += radius_xx2*3 - 2*radius_xx2*yy;
}
yy--;
draw_y0--;
draw_y1--;
draw_y2++;
draw_y3++;
point.x = draw_x0;
point.y = draw_y0;
LCDDrawPoint( &point );
point.x = draw_x1;
point.y = draw_y1;
LCDDrawPoint( &point );
point.x = draw_x2;
point.y = draw_y2;
LCDDrawPoint( &point );
point.x = draw_x3;
point.y = draw_y3;
LCDDrawPoint( &point );
}
} */
/*================================================================================
绘制实心椭圆
================================================================================*/
/*void GUI_DrawEllipseFill( ELLIPSE* pEllipse )
{
INT32S draw_x0, draw_y0; // 刽图点坐标变量
INT32S draw_x1, draw_y1;
INT32S draw_x2, draw_y2;
INT32S draw_x3, draw_y3;
INT32S xx, yy; // 画图控制变量
INT32S center_x, center_y; // 椭圆中心点坐标变量
INT32S radius_x, radius_y; // 椭圆的半径，x轴半径和y轴半径
INT32S radius_xx, radius_yy; // 半径乘平方值
INT32S radius_xx2, radius_yy2; // 半径乘平方值的两倍
INT32S di; // 定义决策变量
POINT point;
LINE line;
point.Color = pEllipse->Color;
line.Color = pEllipse->Color;
//* 参数过滤 *
if( (pEllipse->xs==pEllipse->xe) ||
(pEllipse->ys==pEllipse->ye) ) return;
//* 计算出椭圆中心点坐标 *
center_x = (pEllipse->xs + pEllipse->xe) >> 1;
center_y = (pEllipse->ys + pEllipse->ye) >> 1;
//* 计算出椭圆的半径，x轴半径和y轴半径 *
if(pEllipse->xs > pEllipse->xe)
{
radius_x = (pEllipse->xs - pEllipse->xe) >> 1;
}
else
{
radius_x = (pEllipse->xe - pEllipse->xs) >> 1;
}
if(pEllipse->ys > pEllipse->ye)
{
radius_y = (pEllipse->ys - pEllipse->ye) >> 1;
}
else
{
radius_y = (pEllipse->ye - pEllipse->ys) >> 1;
}
//* 计算半径乘平方值 *
radius_xx = radius_x * radius_x;
radius_yy = radius_y * radius_y;
//* 计算半径乘4值 *
radius_xx2 = radius_xx<<1;
radius_yy2 = radius_yy<<1;
//* 初始化画图变量 *
xx = 0;
yy = radius_y;
di = radius_yy2 + radius_xx - radius_xx2*radius_y ; // 初始化决策变量
//* 计算出椭圆y轴上的两个端点坐标，作为作图起点 *
draw_x0 = draw_x1 = draw_x2 = draw_x3 = center_x;
draw_y0 = draw_y1 = center_y + radius_y;
draw_y2 = draw_y3 = center_y - radius_y;
point.x = draw_x0;
point.y = draw_y0;
LCDDrawPoint( &point );
point.x = draw_x2;
point.y = draw_y2;
LCDDrawPoint( &point );// 画y轴上的两个端点
while( (radius_yy*xx) < (radius_xx*yy) )
{ if(di<0)
{ di+= radius_yy2*(2*xx+3);
}
else
{ di += radius_yy2*(2*xx+3) + 4*radius_xx - 4*radius_xx*yy;
yy--;
draw_y0--;
draw_y1--;
draw_y2++;
draw_y3++;
}
xx ++; // x轴加1
draw_x0++;
draw_x1--;
draw_x2++;
draw_x3--;
point.x = draw_x0;
point.y = draw_y0;
LCDDrawPoint( &point );
point.x = draw_x1;
point.y = draw_y1;
LCDDrawPoint( &point );
point.x = draw_x2;
point.y = draw_y2;
LCDDrawPoint( &point );
point.x = draw_x3;
point.y = draw_y3;
LCDDrawPoint( &point );
//* 若y轴已变化，进行填充 *
if(di>=0)
{
line.xs = draw_x0;
line.xe = draw_x1;
line.ys = line.ye = draw_y0;
LCDDrawHRLine( &line );
line.xs = draw_x2;
line.xe = draw_x3;
line.ys = line.ye = draw_y2;
LCDDrawHRLine( &line );
}
}
di = radius_xx2*(yy-1)*(yy-1) + radius_yy2*xx*xx + radius_yy +
radius_yy2*xx - radius_xx2*radius_yy;
while(yy>=0)
{ if(di<0)
{ di+= radius_xx2*3 + 4*radius_yy*xx + 4*radius_yy - 2*radius_xx2*yy;
xx ++; // x轴加1
draw_x0++;
draw_x1--;
draw_x2++;
draw_x3--;
}
else
{ di += radius_xx2*3 - 2*radius_xx2*yy;
}
yy--;
draw_y0--;
draw_y1--;
draw_y2++;
draw_y3++;
point.x = draw_x0;
point.y = draw_y0;
LCDDrawPoint( &point );
point.x = draw_x1;
point.y = draw_y1;
LCDDrawPoint( &point );
point.x = draw_x2;
point.y = draw_y2;
LCDDrawPoint( &point );
point.x = draw_x3;
point.y = draw_y3;
LCDDrawPoint( &point );
//* y轴已变化，进行填充 *
line.xs = draw_x0;
line.xe = draw_x1;
line.ys = line.ye = draw_y0;
LCDDrawHRLine( &line );
line.xs = draw_x2;
line.xe = draw_x3;
line.ys = line.ye = draw_y2;
LCDDrawHRLine( &line );
}
} */
/*================================================================================
初始化背景颜色
================================================================================*/
/*void GUI_Inital( TCOLOR Color )
{
DOLLOP dollop;
dollop.xs = 0;
dollop.xe = GUI_LCM_XMAX;
dollop.ys = 0;
dollop.ye = GUI_LCM_YMAX;
dollop.Color = Color;
LCDDrawDollop( &dollop );
}*/ ⌨️ 快捷键说明
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