📄 lcd.lst
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619
620
621 // 要判断当前点是否在有效范围内
622 if( (draw_x0<=GUI_LCM_XMAX)&&(draw_y0>=0) )
623 {
624 point.x = draw_x0;
625 point.y = draw_y0;
626 LCDDrawPoint( &point );
627 }
628 if( (draw_x1>=0)&&(draw_y1>=0) )
629 {
630 point.x = draw_x1;
631 point.y = draw_y1;
632 LCDDrawPoint( &point );
633 }
634 if( (draw_x2<=GUI_LCM_XMAX)&&(draw_y2<=GUI_LCM_YMAX) )
635 {
636 point.x = draw_x2;
637 point.y = draw_y2;
638 LCDDrawPoint( &point );
639 }
640 if( (draw_x3>=0)&&(draw_y3<=GUI_LCM_YMAX) )
641 {
642 point.x = draw_x3;
643 point.y = draw_y3;
644 LCDDrawPoint( &point );
645 }
646 if( (draw_x4<=GUI_LCM_XMAX)&&(draw_y4>=0) )
647 {
648 point.x = draw_x4;
649 point.y = draw_y4;
650 LCDDrawPoint( &point );
651 }
652 if( (draw_x5>=0)&&(draw_y5>=0) )
653 {
654 point.x = draw_x5;
655 point.y = draw_y5;
656 LCDDrawPoint( &point );
657 }
658 if( (draw_x6<=GUI_LCM_XMAX)&&(draw_y6<=GUI_LCM_YMAX) )
659 {
660 point.x = draw_x6;
661 point.y = draw_y6;
662 LCDDrawPoint( &point );
663 }
664 if( (draw_x7>=0)&&(draw_y7<=GUI_LCM_YMAX) )
665 {
666 point.x = draw_x7;
667 point.y = draw_y7;
668 LCDDrawPoint( &point );
669 }
670 }
C51 COMPILER V9.00 LCD 08/26/2012 13:41:40 PAGE 12
671 }
672 */
673 /*================================================================================
674 画实心的圆
675 ================================================================================*/
676 /*void GUI_DrawCircleFill( CIRCLE* pCircle )
677 {
678 INT8S draw_x0, draw_y0; // 刽图点坐标变量
679 INT8S draw_x1, draw_y1;
680 INT8S draw_x2, draw_y2;
681 INT8S draw_x3, draw_y3;
682 INT8S draw_x4, draw_y4;
683 INT8S draw_x5, draw_y5;
684 INT8S draw_x6, draw_y6;
685 INT8S draw_x7, draw_y7;
686 INT8S fill_x0, fill_y0; // 填充所需的变量，使用垂直线填充
687 INT8S fill_x1;
688 INT8S xx, yy; // 画圆控制变量
689
690 INT8S di; // 决策变量
691 POINT point;
692 LINE line;
693
694 point.Color = pCircle->Color;
695 line.Color = pCircle->Color;
696
697
698
699 // 参数过滤
700 if(0==pCircle->r) return;
701
702 // 计算出4个特殊点(0、90、180、270度)，进行显示
703 point.x = draw_x0 = draw_x1 = pCircle->x;
704 point.y = draw_y0 = draw_y1 = pCircle->y + pCircle->r;
705 if(draw_y0<GUI_LCM_YMAX)
706 {
707 LCDDrawPoint( &point );
708 }
709
710 point.x = draw_x2 = draw_x3 = pCircle->x;
711 point.y = draw_y2 = draw_y3 = pCircle->y - pCircle->r;
712 if(draw_y2>=0)
713 {
714 LCDDrawPoint( &point );
715 }
716
717 point.x = draw_x4 = draw_x6 = pCircle->x + pCircle->r;
718 point.y = draw_y4 = draw_y6 = pCircle->y;
719 if(draw_x4<GUI_LCM_XMAX)
720 {
721 LCDDrawPoint( &point ); // 0度
722 fill_x1 = draw_x4;
723 }
724 else
725 {
726 fill_x1 = GUI_LCM_XMAX;
727 }
728 fill_y0 = pCircle->y; // 设置填充线条起始点fill_x0
729 fill_x0 = pCircle->x - pCircle->r; // 设置填充线条结束点fill_y1
730 if(fill_x0<0) fill_x0 = 0;
731 line.xs = fill_x0;
732 line.ys = fill_y0;
C51 COMPILER V9.00 LCD 08/26/2012 13:41:40 PAGE 13
733 line.ye = fill_y0;
734 line.xe = fill_x1;
735 LCDDrawHRLine( &line );
736
737 point.x = draw_x5 = draw_x7 = pCircle->x - pCircle->r;
738 point.y = draw_y5 = draw_y7 = pCircle->y;
739 if(draw_x5>=0)
740 {
741 LCDDrawPoint( &point ); // 180度
742 }
743 if(1==pCircle->r) return;
744
745
746 // 使用Bresenham法进行画圆
747 di = 3 - 2*pCircle->r; // 初始化决策变量
748
749 xx = 0;
750 yy = pCircle->r;
751 while(xx<yy)
752 { if(di<0)
753 { di += 4*xx + 6;
754 }
755 else
756 { di += 4*(xx - yy) + 10;
757
758 yy--;
759 draw_y0--;
760 draw_y1--;
761 draw_y2++;
762 draw_y3++;
763 draw_x4--;
764 draw_x5++;
765 draw_x6--;
766 draw_x7++;
767 }
768
769 xx++;
770 draw_x0++;
771 draw_x1--;
772 draw_x2++;
773 draw_x3--;
774 draw_y4++;
775 draw_y5++;
776 draw_y6--;
777 draw_y7--;
778
779
780 // 要判断当前点是否在有效范围内
781 if( (draw_x0<=GUI_LCM_XMAX)&&(draw_y0>=0) )
782 {
783 point.x = draw_x0;
784 point.y = draw_y0;
785 LCDDrawPoint( &point );
786 }
787 if( (draw_x1>=0)&&(draw_y1>=0) )
788 {
789 point.x = draw_x1;
790 point.y = draw_y1;
791 LCDDrawPoint( &point );
792 }
793
794 // 第二点水直线填充(下半圆的点)
C51 COMPILER V9.00 LCD 08/26/2012 13:41:40 PAGE 14
795 if(draw_x1>=0)
796 { // 设置填充线条起始点fill_x0
797 fill_x0 = draw_x1;
798 // 设置填充线条起始点fill_y0
799 fill_y0 = draw_y1;
800 if(fill_y0>GUI_LCM_YMAX) fill_y0 = GUI_LCM_YMAX;
801 if(fill_y0<0) fill_y0 = 0;
802 // 设置填充线条结束点fill_x1
803 fill_x1 = pCircle->x*2 - draw_x1;
804 if(fill_x1>GUI_LCM_XMAX) fill_x1 = GUI_LCM_XMAX;
805
806 line.xs = fill_x0;
807 line.xe = fill_x1;
808 line.ys = line.ye = fill_y0;
809 LCDDrawHRLine( &line );
810 }
811
812
813 if( (draw_x2<=GUI_LCM_XMAX)&&(draw_y2<=GUI_LCM_YMAX) )
814 {
815 point.x = draw_x2;
816 point.y = draw_y2;
817 LCDDrawPoint( &point );
818 }
819
820 if( (draw_x3>=0)&&(draw_y3<=GUI_LCM_YMAX) )
821 {
822 point.x = draw_x3;
823 point.y = draw_y3;
824 LCDDrawPoint( &point );
825 }
826
827 // 第四点垂直线填充(上半圆的点)
828 if(draw_x3>=0)
829 { // 设置填充线条起始点fill_x0
830 fill_x0 = draw_x3;
831 // 设置填充线条起始点fill_y0
832 fill_y0 = draw_y3;
833 if(fill_y0>GUI_LCM_YMAX) fill_y0 = GUI_LCM_YMAX;
834 if(fill_y0<0) fill_y0 = 0;
835 // 设置填充线条结束点fill_x1
836 fill_x1 = pCircle->x*2 - draw_x3;
837 if(fill_x1>GUI_LCM_XMAX) fill_x1 = GUI_LCM_XMAX;
838
839 line.xs = fill_x0;
840 line.xe = fill_x1;
841 line.ys = line.ye = fill_y0;
842 LCDDrawHRLine( &line );
843 }
844
845
846 if( (draw_x4<=GUI_LCM_XMAX)&&(draw_y4>=0) )
847 {
848 point.x = draw_x4;
849 point.y = draw_y4;
850 LCDDrawPoint( &point );
851 }
852 if( (draw_x5>=0)&&(draw_y5>=0) )
853 {
854 point.x = draw_x5;
855 point.y = draw_y5;
856 LCDDrawPoint( &point );
C51 COMPILER V9.00 LCD 08/26/2012 13:41:40 PAGE 15
857 }
858
859 // 第六点垂直线填充(上半圆的点)
860 if(draw_x5>=0)
861 { // 设置填充线条起始点fill_x0
862 fill_x0 = draw_x5;
863 // 设置填充线条起始点fill_y0
864 fill_y0 = draw_y5;
865 if(fill_y0>GUI_LCM_YMAX) fill_y0 = GUI_LCM_YMAX;
866 if(fill_y0<0) fill_y0 = 0;
867 // 设置填充线条结束点fill_x1
868 fill_x1 = pCircle->x*2 - draw_x5;
869 if(fill_x1>GUI_LCM_XMAX) fill_x1 = GUI_LCM_XMAX;
870 line.xs = fill_x0;
871 line.xe = fill_x1;
872 line.ys = line.ye = fill_y0;
873 LCDDrawHRLine( &line );
874 }
875
876
877 if( (draw_x6<=GUI_LCM_XMAX)&&(draw_y6<=GUI_LCM_YMAX) )
878 {
879 point.x = draw_x6;
880 point.y = draw_y6;
881 LCDDrawPoint( &point );
882 }
883
884 if( (draw_x7>=0)&&(draw_y7<=GUI_LCM_YMAX) )
885 {
886 point.x = draw_x7;
887 point.y = draw_y7;
888 LCDDrawPoint( &point );
889 }
890
891 // 第八点垂直线填充(上半圆的点)
892 if(draw_x7>=0)
893 { // 设置填充线条起始点fill_x0
894 fill_x0 = draw_x7;
895 // 设置填充线条起始点fill_y0
896 fill_y0 = draw_y7;
897 if(fill_y0>GUI_LCM_YMAX) fill_y0 = GUI_LCM_YMAX;
898 if(fill_y0<0) fill_y0 = 0;
899 // 设置填充线条结束点fill_x1
900 fill_x1 = pCircle->x*2 - draw_x7;
901 if(fill_x1>GUI_LCM_XMAX) fill_x1 = GUI_LCM_XMAX;
902 line.xs = fill_x0;
903 line.xe = fill_x1;
904 line.ys = line.ye = fill_y0;
905 LCDDrawHRLine( &line );
906 }
907
908 }
909 } */
910
911 /*================================================================================
912 绘制空心的椭圆
913 ================================================================================*/
914 /*void GUI_DrawEllipse( ELLIPSE* pEllipse )
915 {
916 INT32S draw_x0, draw_y0; // 刽图点坐标变量
917 INT32S draw_x1, draw_y1;
918 INT32S draw_x2, draw_y2;
C51 COMPILER V9.00 LCD 08/26/2012 13:41:40 PAGE 16
919 INT32S draw_x3, draw_y3;
920 INT32S xx, yy; // 画图控制变量
921
922 INT32S center_x, center_y; // 椭圆中心点坐标变量
923 INT32S radius_x, radius_y; // 椭圆的半径，x轴半径和y轴半径
924 INT32S radius_xx, radius_yy; // 半径乘平方值
925 INT32S radius_xx2, radius_yy2; // 半径乘平方值的两倍
926 INT32S di; // 定义决策变量
927
928 POINT point;
929
930 point.Color = pEllipse->Color;
931
932 //* 参数过滤 *
933 if( (pEllipse->xs == pEllipse->xe ) ||
934 (pEllipse->ys == pEllipse->ye ) ) return;
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