npm_modules: Fork bower_components into Polymer 0.4.0 and 0.5.0 versions

polymer_0.5.0/bower_components/chartnewjs/Add-ins/gradientColor.js

Index: polymer_0.5.0/bower_components/chartnewjs/Add-ins/gradientColor.js
diff --git a/polymer_0.5.0/bower_components/chartnewjs/Add-ins/gradientColor.js b/polymer_0.5.0/bower_components/chartnewjs/Add-ins/gradientColor.js
new file mode 100644
index 0000000000000000000000000000000000000000..7d830625fd095d660ed18a1fac48a9217a431531
--- /dev/null
+++ b/polymer_0.5.0/bower_components/chartnewjs/Add-ins/gradientColor.js
@@ -0,0 +1,85 @@
+//
+// See ..\Samples\issue_102.html
+//
+// Module intially written by Ole Kroger
+// Change 1 : Omar Sedki - possibility to specify a percentage 
+// Change 2 : Vancoppenolle François - generalized for all graph types
+//
+
+
+function gradientColor(area,ctx,data,statData,posi,posj,othervars) {
+	// v0 = left xAxis of rectangle or xAxis of center
+	// v1 = top yAxis of rectangle or yAxis of center
+	// v2 = right xAxis of rectangle or internal radius (=0 for PolarArea, Pie and Radar)
+	// v3 = bottom yAxis or rectangle or external radius
+	var grd;
+	switch(ctx.tpchart) {
+		case "Radar" :
+			if (area == "COLOR") {
+				var grd = ctx.createRadialGradient(othervars.midPosX, othervars.midPosY, 0, othervars.midPosX, othervars.midPosY , othervars.ext_radius);
+			} else {
+				var grd = ctx.createRadialGradient(othervars.xPosLeft + (othervars.xPosRight - othervars.xPosLeft) / 2, othervars.yPosBottom + (othervars.yPosTop - othervars.yPosBottom) / 2, 0, othervars.xPosLeft + (othervars.xPosRight - othervars.xPosLeft) / 2, othervars.yPosBottom + (othervars.yPosTop - othervars.yPosBottom) / 2, Math.max((othervars.xPosRight - othervars.xPosLeft) / 2, (othervars.yPosTop - othervars.yPosBottom) / 2));
+			}
+			var gradientColors = data.datasets[posi].gradientColors;
+			break;
+		case "PolarArea" :
+		case "Pie" : 
+		case "Doughnut" :
+			if (area == "COLOR") {
+				var grd = ctx.createRadialGradient(statData[0].midPosX, statData[0].midPosY, othervars.scaleAnimation*statData[0].int_radius, statData[0].midPosX, statData[0].midPosY , othervars.scaleAnimation* statData[0].radiusOffset);
+			} else {
+				var grd = ctx.createRadialGradient(othervars.xPosLeft + (othervars.xPosRight - othervars.xPosLeft) / 2, othervars.yPosBottom + (othervars.yPosTop - othervars.yPosBottom) / 2, 0, othervars.xPosLeft + (othervars.xPosRight - othervars.xPosLeft) / 2, othervars.yPosBottom + (othervars.yPosTop - othervars.yPosBottom) / 2, Math.max((othervars.xPosRight - othervars.xPosLeft) / 2, (othervars.yPosTop - othervars.yPosBottom) / 2));
+			}
+			var gradientColors = data[posi].gradientColors;
+			break;
+		case "Line" :
+		case "Bar" :
+		case "StackedBar" :
+			grd = ctx.createLinearGradient(othervars.xPosLeft, othervars.yPosBottom, othervars.xPosLeft, othervars.yPosTop);
+			var gradientColors = data.datasets[posi].gradientColors;
+			break;
+		case "HorizontalBar" :
+		case "HorizontalStackedBar" :
+			grd = ctx.createLinearGradient(othervars.xPosLeft, othervars.yPosBottom, othervars.xPosRight, othervars.yPosBottom);
+			var gradientColors = data.datasets[posi].gradientColors;
+			break;
+		default : 
+			break;
+		
+	}
+	
+	var steps = gradientColors.length;
+	var currentStepValue = 0;
+	var stepValues = [];
+	var PERCENT_REGEX = /(\d{1,2}|100)%\s*?$/g
+	for (var iter = 0; iter < steps; iter++) {
+		var userStepValue = gradientColors[iter].match(PERCENT_REGEX);
+		if (!userStepValue) {
+			stepValues[iter] = false;
+			continue;
+		}
+		userStepValue = parseFloat(userStepValue) / 100.0;
+		stepValues[iter] = userStepValue;
+	}
+	for (var iter = 0; iter < steps; iter++) {
+		if (stepValues[iter] === false) {
+			if (iter == 0) {
+				stepValues[iter] = 0;
+			} else if (iter == steps - 1) {
+				stepValues[iter] = 1;
+			} else {
+				// found next stepValue which isn't false
+				var s = iter + 1;
+				while (s < steps - 1 && stepValues[s] === false) {
+					s++;
+				}
+				var lastStep = ((iter == 0) ? 0 : stepValues[iter - 1]);
+				stepValues[iter] = ((s >= steps - 1) ? 1 : stepValues[s + 1]) - lastStep;
+				stepValues[iter] = lastStep + stepValues[iter] / (s - iter + 1);
+			}
+		}
+		GradientcolorsWithoutStep = gradientColors[iter].replace(PERCENT_REGEX, "").trim();
+		grd.addColorStop(stepValues[iter], GradientcolorsWithoutStep);
+	}
+	return grd;
+}