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#include "lcd.h" #include "font.h" #include "sys.h" #include "gui.h" #include "string.h" /******************************************************************* * @name :void GUI_DrawPoint(u16 x,u16 y,u16 color) * @date :2018-08-09 * @function :draw a point in LCD screen * @parameters :x:the x coordinate of the point y:the y coordinate of the point color:the color value of the point * @retvalue :None ********************************************************************/ void GUI_DrawPoint(u16 x,u16 y,u16 color) { LCD_SetCursor(x,y); LCD_WR_DATA_16Bit(color); } /******************************************************************* * @name :void LCD_Fill(u16 sx,u16 sy,u16 ex,u16 ey,u16 color) * @date :2018-08-09 * @function :fill the specified area * @parameters :sx:the bebinning x coordinate of the specified area sy:the bebinning y coordinate of the specified area ex:the ending x coordinate of the specified area ey:the ending y coordinate of the specified area color:the filled color value * @retvalue :None ********************************************************************/ void LCD_Fill(u16 sx,u16 sy,u16 ex,u16 ey,u16 color) { u16 i,j; u16 width=ex-sx+1; //�õ����Ŀ�� u16 height=ey-sy+1; //�߶� LCD_SetWindows(sx,sy,ex,ey);//������ʾ���� for(i=0;i<height;i++) { for(j=0;j<width;j++) LCD_WR_DATA_16Bit(color); //д������ } LCD_SetWindows(0,0,lcddev.width-1,lcddev.height-1);//�ָ���������Ϊȫ�� } /******************************************************************* * @name :void LCD_DrawLine(u16 x1, u16 y1, u16 x2, u16 y2) * @date :2018-08-09 * @function :Draw a line between two points * @parameters :x1:the bebinning x coordinate of the line y1:the bebinning y coordinate of the line x2:the ending x coordinate of the line y2:the ending y coordinate of the line * @retvalue :None ********************************************************************/ void LCD_DrawLine(u16 x1, u16 y1, u16 x2, u16 y2) { u16 t; int xerr=0,yerr=0,delta_x,delta_y,distance; int incx,incy,uRow,uCol; delta_x=x2-x1; //������������ delta_y=y2-y1; uRow=x1; uCol=y1; if(delta_x>0)incx=1; //���õ������� else if(delta_x==0)incx=0;//��ֱ�� else {incx=-1;delta_x=-delta_x;} if(delta_y>0)incy=1; else if(delta_y==0)incy=0;//ˮƽ�� else{incy=-1;delta_y=-delta_y;} if( delta_x>delta_y)distance=delta_x; //ѡȡ�������������� else distance=delta_y; for(t=0;t<=distance+1;t++ )//������� { LCD_DrawPoint(uRow,uCol);//���� xerr+=delta_x ; yerr+=delta_y ; if(xerr>distance) { xerr-=distance; uRow+=incx; } if(yerr>distance) { yerr-=distance; uCol+=incy; } } } /***************************************************************************** * @name :void LCD_DrawRectangle(u16 x1, u16 y1, u16 x2, u16 y2) * @date :2018-08-09 * @function :Draw a rectangle * @parameters :x1:the bebinning x coordinate of the rectangle y1:the bebinning y coordinate of the rectangle x2:the ending x coordinate of the rectangle y2:the ending y coordinate of the rectangle * @retvalue :None ******************************************************************************/ void LCD_DrawRectangle(u16 x1, u16 y1, u16 x2, u16 y2) { LCD_DrawLine(x1,y1,x2,y1); LCD_DrawLine(x1,y1,x1,y2); LCD_DrawLine(x1,y2,x2,y2); LCD_DrawLine(x2,y1,x2,y2); } /***************************************************************************** * @name :void LCD_DrawFillRectangle(u16 x1, u16 y1, u16 x2, u16 y2) * @date :2018-08-09 * @function :Filled a rectangle * @parameters :x1:the bebinning x coordinate of the filled rectangle y1:the bebinning y coordinate of the filled rectangle x2:the ending x coordinate of the filled rectangle y2:the ending y coordinate of the filled rectangle * @retvalue :None ******************************************************************************/ void LCD_DrawFillRectangle(u16 x1, u16 y1, u16 x2, u16 y2) { LCD_Fill(x1,y1,x2,y2,POINT_COLOR); } /***************************************************************************** * @name :void _draw_circle_8(int xc, int yc, int x, int y, u16 c) * @date :2018-08-09 * @function :8 symmetry circle drawing algorithm (internal call) * @parameters :xc:the x coordinate of the Circular center yc:the y coordinate of the Circular center x:the x coordinate relative to the Circular center y:the y coordinate relative to the Circular center c:the color value of the circle * @retvalue :None ******************************************************************************/ void _draw_circle_8(int xc, int yc, int x, int y, u16 c) { GUI_DrawPoint(xc + x, yc + y, c); GUI_DrawPoint(xc - x, yc + y, c); GUI_DrawPoint(xc + x, yc - y, c); GUI_DrawPoint(xc - x, yc - y, c); GUI_DrawPoint(xc + y, yc + x, c); GUI_DrawPoint(xc - y, yc + x, c); GUI_DrawPoint(xc + y, yc - x, c); GUI_DrawPoint(xc - y, yc - x, c); } /***************************************************************************** * @name :void gui_circle(int xc, int yc,u16 c,int r, int fill) * @date :2018-08-09 * @function :Draw a circle of specified size at a specified location * @parameters :xc:the x coordinate of the Circular center yc:the y coordinate of the Circular center r:Circular radius fill:1-filling,0-no filling * @retvalue :None ******************************************************************************/ void gui_circle(int xc, int yc,u16 c,int r, int fill) { int x = 0, y = r, yi, d; d = 3 - 2 * r; if (fill) { // �����䣨��ʵ��Բ�� while (x <= y) { for (yi = x; yi <= y; yi++) _draw_circle_8(xc, yc, x, yi, c); if (d < 0) { d = d + 4 * x + 6; } else { d = d + 4 * (x - y) + 10; y--; } x++; } } else { // �������䣨������Բ�� while (x <= y) { _draw_circle_8(xc, yc, x, y, c); if (d < 0) { d = d + 4 * x + 6; } else { d = d + 4 * (x - y) + 10; y--; } x++; } } } /***************************************************************************** * @name :void Draw_Triangel(u16 x0,u16 y0,u16 x1,u16 y1,u16 x2,u16 y2) * @date :2018-08-09 * @function :Draw a triangle at a specified position * @parameters :x0:the bebinning x coordinate of the triangular edge y0:the bebinning y coordinate of the triangular edge x1:the vertex x coordinate of the triangular y1:the vertex y coordinate of the triangular x2:the ending x coordinate of the triangular edge y2:the ending y coordinate of the triangular edge * @retvalue :None ******************************************************************************/ void Draw_Triangel(u16 x0,u16 y0,u16 x1,u16 y1,u16 x2,u16 y2) { LCD_DrawLine(x0,y0,x1,y1); LCD_DrawLine(x1,y1,x2,y2); LCD_DrawLine(x2,y2,x0,y0); } static void _swap(u16 *a, u16 *b) { u16 tmp; tmp = *a; *a = *b; *b = tmp; } /***************************************************************************** * @name :void Fill_Triangel(u16 x0,u16 y0,u16 x1,u16 y1,u16 x2,u16 y2) * @date :2018-08-09 * @function :filling a triangle at a specified position * @parameters :x0:the bebinning x coordinate of the triangular edge