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comparison dwtx/draw2d/ManhattanConnectionRouter.d @ 103:2d6540440fe6

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Replace static ctors with lazy init.
author Frank Benoit <benoit@tionex.de>
date Sun, 03 Aug 2008 17:01:51 +0200
parents 95307ad235d9
children
comparison
equal deleted inserted replaced
102:0de61c6f08ca 103:2d6540440fe6
44 reservedRows = new ArrayList(2); 44 reservedRows = new ArrayList(2);
45 reservedCols = new ArrayList(2); 45 reservedCols = new ArrayList(2);
46 } 46 }
47 } 47 }
48 48
49 private static Ray UP, DOWN, LEFT, RIGHT; 49 private static Ray UP_, DOWN_, LEFT_, RIGHT_;
50 50 private static Ray UP(){
51 51 if( !initStaticCtor_done ) initStaticCtor();
52 static this(){ 52 assert(UP_);
53 UP = new Ray(0, -1); 53 return UP_;
54 DOWN = new Ray(0, 1); 54 }
55 LEFT = new Ray(-1, 0); 55 private static Ray DOWN(){
56 RIGHT = new Ray(1, 0); 56 if( !initStaticCtor_done ) initStaticCtor();
57 } 57 assert(DOWN_);
58 return DOWN_;
59 }
60 private static Ray LEFT(){
61 if( !initStaticCtor_done ) initStaticCtor();
62 assert(LEFT_);
63 return LEFT_;
64 }
65 private static Ray RIGHT(){
66 if( !initStaticCtor_done ) initStaticCtor();
67 assert(RIGHT_);
68 return RIGHT_;
69 }
70
71 private static bool initStaticCtor_done = false;
72 private static void initStaticCtor(){
73 synchronized( ManhattanConnectionRouter.classinfo ){
74 if( !initStaticCtor_done ){
75 UP_ = new Ray(0, -1);
76 DOWN_ = new Ray(0, 1);
77 LEFT_ = new Ray(-1, 0);
78 RIGHT_ = new Ray(1, 0);
79 initStaticCtor_done = true;
80 }
81 }
82 }
83
84
58 85
59 public this(){ 86 public this(){
60 rowsUsed = new HashMap(); 87 rowsUsed = new HashMap();
61 colsUsed = new HashMap(); 88 colsUsed = new HashMap();
62 reservedInfo = new HashMap(); 89 reservedInfo = new HashMap();