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comparison dwtx/draw2d/BorderLayout.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
29 { 29 {
30 30
31 /** 31 /**
32 * Constant to be used as a constraint for child figures 32 * Constant to be used as a constraint for child figures
33 */ 33 */
34 public static const Integer CENTER; 34 private static Integer CENTER_;
35 /** 35 public static Integer CENTER(){
36 * Constant to be used as a constraint for child figures 36 if( !initStaticCtor_done ) initStaticCtor();
37 */ 37 return CENTER_;
38 public static const Integer TOP; 38 }
39 /** 39 /**
40 * Constant to be used as a constraint for child figures 40 * Constant to be used as a constraint for child figures
41 */ 41 */
42 public static const Integer BOTTOM; 42 private static Integer TOP_;
43 /** 43 public static Integer TOP(){
44 * Constant to be used as a constraint for child figures 44 if( !initStaticCtor_done ) initStaticCtor();
45 */ 45 return TOP_;
46 public static const Integer LEFT; 46 }
47 /** 47 /**
48 * Constant to be used as a constraint for child figures 48 * Constant to be used as a constraint for child figures
49 */ 49 */
50 public static const Integer RIGHT; 50 private static Integer BOTTOM_;
51 51 public static Integer BOTTOM(){
52 static this(){ 52 if( !initStaticCtor_done ) initStaticCtor();
53 CENTER = new Integer(PositionConstants.CENTER); 53 return BOTTOM_;
54 TOP = new Integer(PositionConstants.TOP); 54 }
55 BOTTOM = new Integer(PositionConstants.BOTTOM); 55 /**
56 LEFT = new Integer(PositionConstants.LEFT); 56 * Constant to be used as a constraint for child figures
57 RIGHT = new Integer(PositionConstants.RIGHT); 57 */
58 private static Integer LEFT_;
59 public static Integer LEFT(){
60 if( !initStaticCtor_done ) initStaticCtor();
61 return LEFT_;
62 }
63 /**
64 * Constant to be used as a constraint for child figures
65 */
66 private static Integer RIGHT_;
67 public static Integer RIGHT(){
68 if( !initStaticCtor_done ) initStaticCtor();
69 return RIGHT_;
70 }
71
72 private static bool initStaticCtor_done = false;
73 private static void initStaticCtor(){
74 synchronized( BorderLayout.classinfo ){
75 if( !initStaticCtor_done ){
76 CENTER_ = new Integer(PositionConstants.CENTER);
77 TOP_ = new Integer(PositionConstants.TOP);
78 BOTTOM_ = new Integer(PositionConstants.BOTTOM);
79 LEFT_ = new Integer(PositionConstants.LEFT);
80 RIGHT_ = new Integer(PositionConstants.RIGHT);
81 initStaticCtor_done = true;
82 }
83 }
58 } 84 }
59 85
60 private IFigure center, left, top, bottom, right; 86 private IFigure center, left, top, bottom, right;
61 private int vGap = 0, hGap = 0; 87 private int vGap = 0, hGap = 0;
62 88