503 /// Gets or sets the width of the 8 little rectangles
504 /// (rectangles that on the 4 corners and the 4 middle points that of the 4 lines of the main rectangle)
505 /// </summary>
506 public int LittleRectangleWidth
507 {
508 get { return littleRectangleWidth; }
509 set { littleRectangleWidth = value; }
510 }
511 /**//// <summary>
512 /// Gets or sets the height of the 8 little rectangles
513 /// (rectangles that on the 4 corners and the 4 middle points that of the 4 lines of the main rectangle)
514 /// </summary>
515 public int LittleRectangleHeight
516 {
517 get { return littleRectangleHeight; }
518 set { littleRectangleHeight = value; }
519 }
520
521 /**//// <summary>
522 /// Gets or sets he little rectangle on the upper-left corner of the main rectangle
523 /// </summary>
524 public Rectangle LeftTopRectangle
525 {
526 get { return leftTopRectangle; }
527 set { leftTopRectangle = value; }
528 }
529 /**//// <summary>
530 /// Gets or sets he little rectangle on the middle point of the left line of the main rectangle
531 /// </summary>
532 public Rectangle LeftMiddleRectangle
533 {
534 get { return leftMiddleRectangle; }
535 set { leftMiddleRectangle = value; }
536 }
537 /**//// <summary>
538 /// Gets or sets he little rectangle on the bottom-left corner of the main rectangle
539 /// </summary>
540 public Rectangle LeftBottomRectangle
541 {
542 get { return leftBottomRectangle; }
543 set { leftBottomRectangle = value; }
544 }
545
546 /**//// <summary>
547 /// Gets or sets he little rectangle on the upper-right corner of the main rectangle
548 /// </summary>
549 public Rectangle RightTopRectangle
550 {
551 get { return rightTopRectangle; }
552 set { rightTopRectangle = value; }
553 }
554 /**//// <summary>
555 /// Gets or sets he little rectangle on the middle point of the right line of the main rectangle
556 /// </summary>
557 public Rectangle RightMiddleRectangle
558 {
559 get { return rightMiddleRectangle; }
560 set { rightMiddleRectangle = value; }
561 }
562 /**//// <summary>
563 /// Gets or sets he little rectangle on the bottom-right corner of the main rectangle
564 /// </summary>
565 public Rectangle RightBottomRectangle
566 {
567 get { return rightBottomRectangle; }
568 set { rightBottomRectangle = value; }
569 }
570
571 /**//// <summary>
572 /// Gets or sets he little rectangle on the middle point of the top line of the main rectangle
573 /// </summary>
574 public Rectangle TopMiddleRectangle
575 {
576 get { return topMiddleRectangle; }
577 set { topMiddleRectangle = value; }
578 }
579 /**//// <summary>
580 /// Gets or sets he little rectangle on the middle point of the bottom line of the main rectangle
581 /// </summary>
582 public Rectangle BottomMiddleRectangle
583 {
584 get { return bottomMiddleRectangle; }
585 set { bottomMiddleRectangle = value; }
586 }
587
588 /**//// <summary>
589 /// Gets or sets the main rectangle
590 /// </summary>
591 public Rectangle Rect
592 {
593 get { return rect; }
594 set
595 {
596 rect = value;
597 x = value.X;
598 y = value.Y;
599 width = value.Width;
600 height = value.Height;
601 }
602 }
603
604 /**//// <summary>
605 /// Gets the size of the main rectangle
606 /// </summary>
607 public Size Size
608 {
609 get { return rect.Size; }
610 }
611
612 /**//// <summary>
613 /// Gets or sets the background image of the screen
614 /// </summary>
615 public Image BackImage
616 {
617 get { return backImage; }
618 set { backImage = value; }
619 }
620
621
622 /**//// <summary>
623 /// Gets or sets the manner of the cursor
624 /// </summary>
625 public Cursor MyCursor
626 {
627 get { return myCursor; }
628 set { myCursor = value; }
629 }
630
631
632 /**//// <summary>
633 /// Constructor function
634 /// </summary>
635 public MyRectangle()
636 {
637 Rect = new Rectangle();
638
639 setAllModeFalse();
640
641 LittleRectangleWidth = 4;
642 LittleRectangleHeight = 4;
643
644 MinHeight = 5;
645 MinWidth = 5;
646
647 LeftTopRectangle = new Rectangle();
648 LeftMiddleRectangle = new Rectangle();
649 LeftBottomRectangle = new Rectangle();
650
651 RightTopRectangle = new Rectangle();
652 RightMiddleRectangle = new Rectangle();
653 RightBottomRectangle = new Rectangle();
654
655 TopMiddleRectangle = new Rectangle();
656 BottomMiddleRectangle = new Rectangle();
657
658 MyCursor = new Cursor(@"..\..\Cursors\hcross.cur");
659
660 }
661
662 public void SetLittleRectangle()
663 {
664 int excursionX = LittleRectangleWidth / 2;
665 int excursionY = LittleRectangleHeight / 2;
666 LeftTopRectangle = new Rectangle(X - excursionX, Y - excursionY, LittleRectangleWidth, LittleRectangleHeight);
667 leftMiddleRectangle = new Rectangle(X - excursionX, Y - excursionY + Height / 2, LittleRectangleWidth, LittleRectangleHeight);
668 leftBottomRectangle = new Rectangle(X - excursionX, Y - excursionY + Height, LittleRectangleWidth, LittleRectangleHeight);
669
670 rightTopRectangle = new Rectangle(X - excursionX + Width, Y - excursionY, LittleRectangleWidth, LittleRectangleHeight);
671 rightMiddleRectangle = new Rectangle(X - excursionX + Width, Y - excursionY + Height / 2, LittleRectangleWidth, LittleRectangleHeight);
672 rightBottomRectangle = new Rectangle(X - excursionX + Width, Y - excursionY + Height, LittleRectangleWidth, LittleRectangleHeight);
673
674 topMiddleRectangle = new Rectangle(X - excursionX + Width / 2, Y - excursionY, LittleRectangleWidth, LittleRectangleHeight);
675 bottomMiddleRectangle = new Rectangle(X - excursionX + Width / 2, Y - excursionY + Height, LittleRectangleWidth, LittleRectangleHeight);
676 }
677
678 /**//// <summary>
679 /// draw rectangle function
680 /// </summary>
681 /// <param name="e">mouse event </param>
682 /// <param name="backColor">back color</param>
683 public void Draw(MouseEventArgs e, Color backColor)
684 {
685 Draw(backColor);
686 if (e.X < DownPointX)
687 {
688 Width = DownPointX - e.X;
689 X = e.X;
690 }
691 else
692 {
693 Width = e.X - DownPointX;
694 }
695 if (e.Y < DownPointY)
696 {
697 Height = DownPointY - e.Y;
698 Y = e.Y;
699 }
700 else
701 {
702 Height = e.Y - DownPointY;
703 }
704 Draw(backColor);
705 }
706 /**//// <summary>
707 /// draw rectangle function
708 /// </summary>
709 /// <param name="backColor">back color</param>
710 public void Draw(Color backColor)
711 {
712 //Initialize the 8 little rectangles
713 SetLittleRectangle();
714
715 //draw the main rectangle and the 8 little rectangles
716 ControlPaint.DrawReversibleFrame(rect, backColor, FrameStyle.Dashed);
717
718 ControlPaint.FillReversibleRectangle(leftTopRectangle, Color.White);
719 ControlPaint.FillReversibleRectangle(leftMiddleRectangle, Color.White);
720 ControlPaint.FillReversibleRectangle(leftBottomRectangle, Color.White);
721 ControlPaint.FillReversibleRectangle(rightTopRectangle, Color.White);
722 ControlPaint.FillReversibleRectangle(rightMiddleRectangle, Color.White);
723 ControlPaint.FillReversibleRectangle(rightBottomRectangle, Color.White);
724 ControlPaint.FillReversibleRectangle(topMiddleRectangle, Color.White);
725 ControlPaint.FillReversibleRectangle(bottomMiddleRectangle, Color.White);
726 }
727
728 /**//// <summary>
729 /// change size when the rectangle is on the change size mode
730 /// </summary>
731 /// <param name="e"></param>
732 public void ChangeSize(MouseEventArgs e)
733 {
734 //change size according the mouse location
735 if (ChangeSizeMode)
736 {
737
738 if (MouseOnLeftTop)
739 {
740 if ((Rect.Right - e.X < MinWidth) || (Rect.Bottom - e.Y < MinHeight))
741 {
742 return;
743 }
744 Width = Math.Abs(Rect.Right - e.X);
745 Height = Math.Abs(Rect.Bottom - e.Y);
746 X = e.X;
747 Y = e.Y;
748 }
749 else if (MouseOnLeftMiddle)
750 {
751 if (Rect.Right - e.X < MinWidth)
752 {
753 return;
754 }
755 else
756 {
757 Width = Math.Abs(Rect.Right - e.X);
758 X = e.X;
759 }
760 }
761 else if (MouseOnLeftBottom)
762 {
763 if (Rect.Right - e.X < MinWidth || e.Y - Rect.Top < MinHeight)
764 {
765 return;
766 }
767 Width = Math.Abs(Rect.Right - e.X);
768 Height = Math.Abs(e.Y - Rect.Top);
769 X = e.X;
770 }
771 else if (MouseOnRightTop)
772 {
773 if (e.X - Rect.Left < MinWidth || Rect.Bottom - e.Y < MinHeight)
774 {
775 return;
776 }
777 Width = Math.Abs(e.X - X);
778 Height = Math.Abs(Rect.Bottom - e.Y);
779 Y = e.Y;
780 }
781 else if (MouseOnRightMiddle)
782 {
783 if (e.X - Rect.Left < MinWidth)
784 {
785 return;
786 }
787 Width = Math.Abs(e.X - X);
788
789 }
790 else if (MouseOnRightBottom)
791 {
792 if (e.X - Rect.Left < MinWidth || e.Y - Rect.Top < MinHeight)
793 {
794 return;
795 }
796 Width = Math.Abs(e.X - X);
797 Height = Math.Abs(e.Y - Y);
798 }
799 else if (MouseOnTopMiddle)
800 {
801 if (Rect.Bottom - e.Y < MinHeight)
802 {
803 return;
804 }
805 Height = Math.Abs(Rect.Bottom - e.Y);
806 Y = e.Y;
807 }
808 else if (MouseOnBottomMiddle)
809 {
810 if (e.Y - Rect.Top < MinHeight)
811 {
812 return;
813 }
814 Height = Math.Abs(e.Y - Y);
815 }
816
817 }
818 }
819
820 /**//// <summary>
821 /// move the location of the rectangle
822 /// </summary>
823 /// <param name="newX">The x-coordinate of the new location</param>
824 /// <param name="newY">The y-coordinate of the new location</param>
825 public void Move(int newX, int newY)
826 {
827 X = newX;
828 Y = newY;
829 }
830
831 /**//// <summary>
832 /// check the current mouse location and set the cursor manner according the mouse location
/// </summary>
834 /// <param name="e">mouse</param>
835 public void CheckMouseLocation(MouseEventArgs e)
836 {
837 if (leftTopRectangle.Contains(e.X, e.Y))
838 {
839 if (!onChangingMode())
840 {
841 MouseOnLeftTop = true;
842 myCursor = new Cursor(@"..\..\Cursors\size2_m.cur");
843 }
844
845 if (e.Button == MouseButtons.Left)
846 {
847 if (!MoveMode)
848 {
849 ChangeSizeMode = true;
850 }
851 }
852 else
853 {
854 changeSizeMode = false;
855 moveMode = false;
856 }
857 }
858 else if (leftMiddleRectangle.Contains(e.X, e.Y))
859 {
860 if (!onChangingMode())
861 {
862 MouseOnLeftMiddle = true;
863 myCursor = new Cursor(@"..\..\Cursors\size3_m.cur");
864 }
865
866 if (e.Button == MouseButtons.Left)
867 {
868 if (!MoveMode)
869 {
870 ChangeSizeMode = true;
871 }
872 }
873 else
874 {
875 changeSizeMode = false;
876 moveMode = false;
877 }
878 }
879 else if (leftBottomRectangle.Contains(e.X, e.Y))
880 {
881 if (!onChangingMode())
882 {
883 MouseOnLeftBottom = true;
884 myCursor = new Cursor(@"..\..\Cursors\size1_m.cur");
885 }
886
887 if (e.Button == MouseButtons.Left)
888 {
889 if (!MoveMode)
890 {
891 ChangeSizeMode = true;
892 }
893 }
894 else
895 {
896 changeSizeMode = false;
897 moveMode = false;
898 }
899 }
900
901 else if (rightTopRectangle.Contains(e.X, e.Y))
902 {
903 mouseOnLeftBottom = false;
904
905 if (!onChangingMode())
906 {
907 MouseOnRightTop = true;
908 myCursor = new Cursor(@"..\..\Cursors\size1_m.cur");
909 }
910
911 mouseOnMiddle = false;
912
913 if (e.Button == MouseButtons.Left)
914 {
915 if (!MoveMode)
916 {
917 ChangeSizeMode = true;
918 }
919 }
920 else
921 {
922 changeSizeMode = false;
923 moveMode = false;
924 }
925 }
926 else if (rightMiddleRectangle.Contains(e.X, e.Y))
927 {
928 if (!onChangingMode())
929 {
930 MouseOnRightMiddle = true;
931 myCursor = new Cursor(@"..\..\Cursors\size3_m.cur");
932 }
933
934 if (e.Button == MouseButtons.Left)
935 {
936 if (!MoveMode)
937 {
938 ChangeSizeMode = true;
939 }
940 }
941 else
942 {
943 changeSizeMode = false;
944 moveMode = false;
945 }
946 }
947 else if (rightBottomRectangle.Contains(e.X, e.Y))
948 {
949 if (!onChangingMode())
950 {
951 MouseOnRightBottom = true;
952 myCursor = new Cursor(@"..\..\Cursors\size2_m.cur");
953 }
954
955 if (e.Button == MouseButtons.Left)
956 {
957 if (!MoveMode)
958 {
959 ChangeSizeMode = true;
960 }
961 }
962 else
963 {
964 changeSizeMode = false;
965 moveMode = false;
966 }
967 }
968 else if (topMiddleRectangle.Contains(e.X, e.Y))
969 {
970
971 if (!onChangingMode())
972 {
973 MouseOnTopMiddle = true;
974 myCursor = new Cursor(@"..\..\Cursors\size4_m.cur");
975 }
976
977
978 if (e.Button == MouseButtons.Left)
979 {
980 if (!MoveMode)
981 {
982 ChangeSizeMode = true;
983 }
984 }
985 else
986 {
987 changeSizeMode = false;
988 moveMode = false;
989 }
990 }
991 else if (bottomMiddleRectangle.Contains(e.X, e.Y))
992 {
993 if (!onChangingMode())
994 {
995 MouseOnBottomMiddle = true;
996 myCursor = new Cursor(@"..\..\Cursors\size4_m.cur");
997 }
998
999 if (e.Button == MouseButtons.Left)
1000 {
1001 if (!MoveMode)
1002 {
1003 ChangeSizeMode = true;
1004 }
1005 }
1006 else
1007 {
1008 changeSizeMode = false;
1009 moveMode = false;
1010 }
1011 }
1012 else if (rect.Contains(e.X, e.Y))
1013 {
1014
1015 if (!changeSizeMode)
1016 {
1017 MouseOnMiddle = true;
1018 myCursor = new Cursor(@"..\..\Cursors\move_m.cur");
1019 }
1020 if (e.Button == MouseButtons.Left)
1021 {
1022 if (!ChangeSizeMode)
1023 {
1024 MoveMode = true;
1025 }
1026 }
1027 else
1028 {
1029 moveMode = false;
1030 changeSizeMode = false;
1031 }
1032 }
1033 else
1034 {
1035 if (e.Button != MouseButtons.Left)
1036 {
1037 setAllModeFalse();
1038
1039 myCursor = new Cursor(@"..\..\Cursors\hcross.cur");
1040 }
1041 }
1042 }
1043 public bool Contains(int x, int y)
1044 {
1045 if (rect.Contains(x, y))
1046 {
1047 return true;
1048 }
1049 else return false;
1050 }
1051
1052 /**//// <summary>
1053 /// set all mode false
1054 /// (the sign of the mouse location and the change size mode ,move mode)
1055 /// </summary>
1056 public void setAllModeFalse()
1057 {
1058 mouseOnLeftTop = false;
1059 mouseOnLeftMiddle = false;
1060 mouseOnLeftBottom = false;
1061
1062 mouseOnRightTop = false;
1063 mouseOnRightMiddle = false;
1064 mouseOnRightBottom = false;
1065
1066 mouseOnTopMiddle = false;
1067 mouseOnBottomMiddle = false;
1068
1069 mouseOnMiddle = false;
1070 changeSizeMode = false;
1071 moveMode = false;
1072 myCursor = new Cursor(@"..\..\Cursors\hcross.cur");
1073 }
1074
1075 /**//// <summary>
1076 /// check whether the rectangle is on change mode now
1077 /// </summary>
1078 /// <returns></returns>
1079 public bool onChangingMode()
1080 {
1081 return ((MouseOnLeftTop || MouseOnLeftMiddle || mouseOnLeftBottom || mouseOnRightTop || mouseOnRightMiddle || MouseOnRightBottom || mouseOnTopMiddle || MouseOnBottomMiddle) && changeSizeMode);
1082 }
1083
1084 /**//// <summary>
1085 /// Initialize the rectangle
1086 /// </summary>
1087 /// <param name="x">The x-coordinate of the rectangle</param>
1088 /// <param name="y">The y-coordinate of the rectangle</param>
1089 /// <param name="width">The width of the rectangle</param>
1090 /// <param name="height">The height of the rectangle</param>
1091 public void Initialize(int x, int y, int width, int height)
1092 {
1093 X = x;
1094 Y = y;
1095 Width = width;
1096 Height = height;
1097 SetLittleRectangle();
1098 }
1099 }
