/hippo/src/main/webapp/ext/src/adapter/core/ext-base-region.js

http://hdbc.googlecode.com/ · JavaScript · 81 lines · 64 code · 11 blank · 6 comment · 2 complexity · b3a0f3d506b61c6ad15c86bf9b5ea441 MD5 · raw file 

    

  1. /*!
    2. 

  2.  * Ext JS Library 3.0.0
    3. 

  3.  * Copyright(c) 2006-2009 Ext JS, LLC
    4. 

  4.  * licensing@extjs.com
    5. 

  5.  * http://www.extjs.com/license
    6. 

  6.  */
    7. 

  7. 	Ext.lib.Region = function(t, r, b, l) {

    8. 

  8. 		var me = this;

    9. 

  9.         me.top = t;

    10. 

  10.         me[1] = t;

    11. 

  11.         me.right = r;

    12. 

  12.         me.bottom = b;

    13. 

  13.         me.left = l;

    14. 

  14.         me[0] = l;

    15. 

  15.     };

    16. 

  16. 

    17. 

  17.     Ext.lib.Region.prototype = {

    18. 

  18.         contains : function(region) {

    19. 

  19. 	        var me = this;

    20. 

  20.             return ( region.left >= me.left &&

    21. 

  21.                      region.right <= me.right &&

    22. 

  22.                      region.top >= me.top &&

    23. 

  23.                      region.bottom <= me.bottom );

    24. 

  24. 

    25. 

  25.         },

    26. 

  26. 

    27. 

  27.         getArea : function() {

    28. 

  28. 	        var me = this;

    29. 

  29.             return ( (me.bottom - me.top) * (me.right - me.left) );

    30. 

  30.         },

    31. 

  31. 

    32. 

  32.         intersect : function(region) {

    33. 

  33.             var me = this,

    34. 

  34.             	t = Math.max(me.top, region.top),

    35. 

  35.             	r = Math.min(me.right, region.right),

    36. 

  36.             	b = Math.min(me.bottom, region.bottom),

    37. 

  37.             	l = Math.max(me.left, region.left);

    38. 

  38. 

    39. 

  39.             if (b >= t && r >= l) {

    40. 

  40.                 return new Ext.lib.Region(t, r, b, l);

    41. 

  41.             }

    42. 

  42.         },

    43. 

  43.         

    44. 

  44.         union : function(region) {

    45. 

  45. 	        var me = this,

    46. 

  46.             	t = Math.min(me.top, region.top),

    47. 

  47.             	r = Math.max(me.right, region.right),

    48. 

  48.             	b = Math.max(me.bottom, region.bottom),

    49. 

  49.             	l = Math.min(me.left, region.left);

    50. 

  50. 

    51. 

  51.             return new Ext.lib.Region(t, r, b, l);

    52. 

  52.         },

    53. 

  53. 

    54. 

  54.         constrainTo : function(r) {

    55. 

  55. 	        var me = this;

    56. 

  56.             me.top = me.top.constrain(r.top, r.bottom);

    57. 

  57.             me.bottom = me.bottom.constrain(r.top, r.bottom);

    58. 

  58.             me.left = me.left.constrain(r.left, r.right);

    59. 

  59.             me.right = me.right.constrain(r.left, r.right);

    60. 

  60.             return me;

    61. 

  61.         },

    62. 

  62. 

    63. 

  63.         adjust : function(t, l, b, r) {

    64. 

  64. 	        var me = this;

    65. 

  65.             me.top += t;

    66. 

  66.             me.left += l;

    67. 

  67.             me.right += r;

    68. 

  68.             me.bottom += b;

    69. 

  69.             return me;

    70. 

  70.         }

    71. 

  71.     };

    72. 

  72. 

    73. 

  73.     Ext.lib.Region.getRegion = function(el) {

    74. 

  74.         var p = Ext.lib.Dom.getXY(el),

    75. 

  75.         	t = p[1],

    76. 

  76.         	r = p[0] + el.offsetWidth,

    77. 

  77.         	b = p[1] + el.offsetHeight,

    78. 

  78.         	l = p[0];

    79. 

  79. 

    80. 

  80.         return new Ext.lib.Region(t, r, b, l);

    81. 

  81.     };
    82.