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46 property int dynamicWidth: 10
47 property int widthSignaledProperty: 20
58 function calculateFirstFactor(seedValue) {
59 var firstFactor = (0.45 * (9.3 / 3.1) - 0.90);
60 firstFactor *= (1 + (0.00001 / seedValue));
64 function calculateSecondFactor(seedValue) {
65 var secondFactor = 0.78 * (6.3 / 2.1) - (0.39 * 4);
66 secondFactor *= (1 + (0.00001 / seedValue));
70 function calculateModificationTerm(seedValue) {
71 var modificationTerm = (12 + (9*7) - 54 + 16 - ((root.calculateFirstFactor(seedValue + 0.3) * seedValue) / 3) + (4*root.calculateSecondFactor(seedValue+2) * seedValue * 1.33)) + (root.calculateSecondFactor(seedValue+1) * seedValue);
72 modificationTerm = modificationTerm + (33/2) + 19 - (9*2) - (61*3) + 177;
73 return modificationTerm;
76 onDynamicWidthChanged: {
78 var firstFactor = root.calculateFirstFactor(8);
79 var secondFactor = root.calculateSecondFactor(dynamicWidth / firstFactor);
80 var modificationTerm = root.calculateModificationTerm(dynamicWidth / secondFactor);
82 // do some regexp matching
83 var someString = "This is a random string which we'll perform regular expression matching on to reduce considerably. This is meant to be part of a complex javascript expression whose evaluation takes considerably longer than the creation cost of QScriptValue.";
84 var regexpPattern = new RegExp("is", "i");
85 var regexpOutputLength = 0;
86 var temp = regexpPattern.exec(someString);
87 while (temp == "is") {
88 regexpOutputLength += 4;
89 regexpOutputLength *= 2;
90 temp = regexpPattern.exec(someString);
91 if (regexpOutputLength > (dynamicWidth * 3)) {
96 // spin in a for loop for a while
99 var cumulativeTotal = 3;
100 for (i = 20; i > 1; i--) {
101 for (j = 31; j > 5; j--) {
102 var branchVariable = i + j;
103 if (branchVariable % 3 == 0) {
104 cumulativeTotal -= secondFactor;
106 cumulativeTotal += firstFactor;
109 if (cumulativeTotal > (dynamicWidth * 50)) {
115 // and update the property
116 widthSignaledProperty = (dynamicWidth + (20/4) + 7 - 1) * modificationTerm + regexpOutputLength - (cumulativeTotal / 73);