Merge pull request #209 from loumoore/master

Handle NaN line slope in line chart selection code.

CHANGELOG.md

@@ -1,5 +1,23 @@
 # Change Log
 
+## [v3.0.10](https://github.com/Jawbone/JBChartView/tree/v3.0.10) (2016-05-31)
+[Full Changelog](https://github.com/Jawbone/JBChartView/compare/v3.0.9...v3.0.10)
+
+## [v3.0.9](https://github.com/Jawbone/JBChartView/tree/v3.0.9) (2016-04-28)
+[Full Changelog](https://github.com/Jawbone/JBChartView/compare/v3.0.8...v3.0.9)
+
+**Implemented enhancements:**
+
+- ability to set line chart view padding [\#205](https://github.com/Jawbone/JBChartView/issues/205)
+
+**Fixed bugs:**
+
+- old gradient fill shows if chart is scrolled offscreen [\#204](https://github.com/Jawbone/JBChartView/issues/204)
+
+**Closed issues:**
+
+- example of using gradient for fills [\#202](https://github.com/Jawbone/JBChartView/issues/202)
+
 ## [v3.0.8](https://github.com/Jawbone/JBChartView/tree/v3.0.8) (2016-02-29)
 [Full Changelog](https://github.com/Jawbone/JBChartView/compare/v3.0.7...v3.0.8)
 

Classes/Bar/JBBarChartView.m

@@ -149,6 +149,28 @@ static UIColor *kJBBarChartViewDefaultBarColor = nil;
 	 * Final block to refresh state and turn off reloading bit
 	 */
 	dispatch_block_t completionBlock = ^{
+		
+		if (animated)
+		{
+			[self.chartData enumerateObjectsUsingBlock:^(id  _Nonnull obj, NSUInteger index, BOOL * _Nonnull stop) {
+				// Grab old bar
+				UIView *oldBarView = [self.barViews objectAtIndex:index];
+				
+				// Update bar instance
+				UIView *barView = [self createBarViewForIndex:index];
+				barView.frame = oldBarView.frame;
+				
+				// Swap subviews
+				[oldBarView removeFromSuperview];
+				[self insertBarView:barView];
+				
+				// Update bar colection
+				NSMutableArray *mutableBarViews = [NSMutableArray arrayWithArray:self.barViews];
+				[mutableBarViews replaceObjectAtIndex:index withObject:barView];
+				self.barViews = [NSArray arrayWithArray:mutableBarViews];
+			}];
+		}
+		
 		self.reloading = NO;
 		[self setState:self.state animated:NO force:YES callback:nil];
 	};

Classes/Line/JBLineChartView.m

@@ -1035,8 +1035,8 @@ static NSInteger const kJBLineChartUnselectedLineIndex = -1;
 				// Touch point
 				CGPoint normalizedTouchPoint = CGPointMake(point.x, self.linesView.bounds.size.height - point.y);
 				
-				// Slope
-				CGFloat lineSlope = (CGFloat)(rightPoint.y - leftPoint.y) / (CGFloat)(rightPoint.x - leftPoint.x);
+				// Slope - set to zero if x coordinates are the same and would result in a NaN value
+				CGFloat lineSlope = rightPoint.x != leftPoint.x ? (CGFloat)(rightPoint.y - leftPoint.y) / (CGFloat)(rightPoint.x - leftPoint.x) : 0.0f;
 				
 				// Insersection point
 				CGPoint interesectionPoint = CGPointMake(normalizedTouchPoint.x, (lineSlope * (normalizedTouchPoint.x - leftPoint.x)) + leftPoint.y);

JBChartView.podspec

@@ -1,6 +1,6 @@
 Pod::Spec.new do |s|
   s.name         = "JBChartView"
-  s.version      = "3.0.8"
+  s.version      = "3.0.10"
   s.summary      = "Jawbone's iOS-based charting library for both line and bar graphs."
   s.homepage     = "https://github.com/Jawbone/JBChartView"
 
@@ -10,7 +10,7 @@ Pod::Spec.new do |s|
   s.author       = { "Terry Worona" => "tworona@jawbone.com" }
   s.source       = { 
 	:git => "https://github.com/Jawbone/JBChartView.git",
-	:tag => "v3.0.8"
+	:tag => "v3.0.10"
   }
 
   s.platform     = :ios, '6.0'