Fixed Issue #34

Added Intrinsic content size for use with auto layout.

Author: Marxon13

Classes/ProgressViews/M13ProgressViewBar.m

@@ -182,8 +182,7 @@ - (void)setProgressBarThickness:(CGFloat)progressBarThickness
     [self setNeedsDisplay];
     //Update strokeWidth
     _progressLayer.lineWidth = progressBarThickness;
-    //Update the corner radius
-    
+    [self invalidateIntrinsicContentSize];
 }
 
 #pragma mark Actions
@@ -534,6 +533,26 @@ - (void)layoutSubviews
 
 }
 
+- (CGSize)intrinsicContentSize
+{
+    CGFloat labelProgressBufferDistance = _progressBarThickness * 4;
+    
+    //Progress bar thickness is the only non-scale based size parameter.
+    if (_progressDirection == M13ProgressViewBarProgressDirectionBottomToTop || _progressDirection == M13ProgressViewBarProgressDirectionTopToBottom) {
+        if (_percentagePosition == M13ProgressViewBarPercentagePositionTop || _percentagePosition == M13ProgressViewBarPercentagePositionBottom) {
+            return CGSizeMake(_progressBarThickness, labelProgressBufferDistance);
+        } else {
+            return CGSizeMake(_progressBarThickness + labelProgressBufferDistance, UIViewNoIntrinsicMetric);
+        }
+    } else {
+        if (_percentagePosition == M13ProgressViewBarPercentagePositionTop || _percentagePosition == M13ProgressViewBarPercentagePositionBottom) {
+            return CGSizeMake(UIViewNoIntrinsicMetric, _progressBarThickness + labelProgressBufferDistance);
+        } else {
+            return CGSizeMake(labelProgressBufferDistance, _progressBarThickness);
+        }
+    }
+}
+
 - (CGFloat)maximumFontSizeThatFitsInRect:(CGRect)frame
 {
     //Starting parameters

Classes/ProgressViews/M13ProgressViewBorderedBar.m

@@ -347,6 +347,11 @@ - (void)layoutSubviews
     }
 }
 
+- (CGSize)intrinsicContentSize
+{
+    return CGSizeMake(UIViewNoIntrinsicMetric, UIViewNoIntrinsicMetric);
+}
+
 #pragma mark Drawing
 
 - (void)drawRect:(CGRect)rect

Classes/ProgressViews/M13ProgressViewFilteredImage.m

@@ -161,6 +161,11 @@ - (void)layoutSubviews
     _progressView.frame = self.bounds;
 }
 
+- (CGSize)intrinsicContentSize
+{
+    return CGSizeMake(UIViewNoIntrinsicMetric, UIViewNoIntrinsicMetric);
+}
+
 #pragma mark Drawing
 
 - (void)drawRect:(CGRect)rect

Classes/ProgressViews/M13ProgressViewImage.m

@@ -170,6 +170,11 @@ - (void)layoutSubviews
     _progressView.frame = self.bounds;
 }
 
+- (CGSize)intrinsicContentSize
+{
+    return CGSizeMake(UIViewNoIntrinsicMetric, UIViewNoIntrinsicMetric);
+}
+
 #pragma mark Drawing
 
 - (void)drawRect:(CGRect)rect

Classes/ProgressViews/M13ProgressViewLetterpress.h

@@ -24,7 +24,7 @@ typedef enum {
  */
 @property (nonatomic, assign) M13ProgressViewLetterpressPointShape pointShape;
 /**
- The amount of space between the grid points.
+ The amount of space between the grid points, as a percentage of the point's size.
  */
 @property (nonatomic, assign) CGFloat pointSpacing;
 /**

Classes/ProgressViews/M13ProgressViewLetterpress.m

@@ -108,7 +108,6 @@ - (void)setup
     _springDisplayLink = [CADisplayLink displayLinkWithTarget:self selector:@selector(rotateWithDisplayLink:)];
     [_springDisplayLink addToRunLoop:[NSRunLoop currentRunLoop] forMode:(id)kCFRunLoopCommonModes];
 
-    
 }
 
 - (void)setFrame:(CGRect)frame
@@ -127,6 +126,12 @@ - (void)setNeedsDisplay
     [letterpressView setNeedsDisplay];
 }
 
+- (CGSize)intrinsicContentSize
+{
+    //Everything is based on scale. No minimum size.
+    return CGSizeMake(UIViewNoIntrinsicMetric, UIViewNoIntrinsicMetric);
+}
+
 #pragma mark - Properties
 
 - (void)setNumberOfGridPoints:(CGPoint)numberOfGridPoints
@@ -143,6 +148,11 @@ - (void)setPointShape:(M13ProgressViewLetterpressPointShape)pointShape
 
 - (void)setPointSpacing:(CGFloat)pointSpacing
 {
+    if (pointSpacing > 1) {
+        pointSpacing = 1;
+    } else if (pointSpacing < 0) {
+        pointSpacing = 0;
+    }
     _pointSpacing = pointSpacing;
     [self setNeedsDisplay];
 }
@@ -263,7 +273,7 @@ - (void)drawRect:(CGRect)rect
             //Calculat the rect of the point
             pointRect.size = pointSize;
             pointRect.origin = CGPointMake(pointSize.width * x, pointSize.height * y);
-            pointRect = CGRectInset(pointRect, _progressView.pointSpacing, _progressView.pointSpacing);
+            pointRect = CGRectInset(pointRect, pointSize.width * _progressView.pointSpacing, pointSize.height * _progressView.pointSpacing);
 
             //Set the fill color
             if (index < indexToFillTo) {
@@ -285,4 +295,6 @@ - (void)drawRect:(CGRect)rect
     }
 }
 
+
+
 @end

Classes/ProgressViews/M13ProgressViewMetro.m

@@ -213,6 +213,15 @@ - (void)setAnimationShape:(M13ProgressViewMetroAnimationShape)animationShape
 - (void)setNumberOfDots:(NSUInteger)numberOfDots
 {
     _numberOfDots = numberOfDots;
+    [self invalidateIntrinsicContentSize];
+    [self stopAnimating];
+    [self beginAnimating];
+}
+
+- (void)setDotSize:(CGSize)dotSize
+{
+    _dotSize = dotSize;
+    [self invalidateIntrinsicContentSize];
     [self stopAnimating];
     [self beginAnimating];
 }
@@ -285,7 +294,16 @@ - (void)showProgress
         }
         pastIndexToHighlightTo = indexToHighlightTo;
     }
-    
+}
+
+- (CGSize)intrinsicContentSize
+{
+    //No real constraint on size.
+    if (_animationShape == M13ProgressViewMetroAnimationShapeEllipse || _animationShape == M13ProgressViewMetroAnimationShapeRectangle) {
+        return CGSizeMake(3 * _dotSize.width, 3 * _dotSize.height);
+    } else {
+        return CGSizeMake(_dotSize.width * _numberOfDots, _dotSize.height);
+    }
 }
 
 #pragma mark Animation

Classes/ProgressViews/M13ProgressViewPie.m

@@ -145,6 +145,7 @@ - (void)setBackgroundRingWidth:(CGFloat)backgroundRingWidth
     _backgroundLayer.lineWidth = _backgroundRingWidth;
     _backgroundRingWidthOverriden = YES;
     [self setNeedsDisplay];
+    [self invalidateIntrinsicContentSize];
 }
 
 #pragma mark Actions
@@ -343,6 +344,16 @@ - (void)layoutSubviews
     [self setNeedsDisplay];
 }
 
+- (CGSize)intrinsicContentSize
+{
+    if (!_backgroundRingWidthOverriden) {
+        //Based on scale
+        return CGSizeMake(UIViewNoIntrinsicMetric, UIViewNoIntrinsicMetric);
+    } else {
+        return CGSizeMake(2 * _backgroundRingWidth, 2 * _backgroundRingWidth);
+    }
+}
+
 - (void)setFrame:(CGRect)frame
 {
     //Keep the progress view square.

Classes/ProgressViews/M13ProgressViewRadiative.m

@@ -221,6 +221,12 @@ - (void)layoutSubviews
     }
 }
 
+- (CGSize)intrinsicContentSize
+{
+    //The width and height should be set with constraints. Can't think of a good way to figure out the minimum size with the point and scale based size calculations.
+    return CGSizeMake(UIViewNoIntrinsicMetric, UIViewNoIntrinsicMetric);
+}
+
 #pragma mark Drawing
 
 - (void)drawRect:(CGRect)rect

Classes/ProgressViews/M13ProgressViewRing.m

@@ -376,6 +376,12 @@ - (void)setFrame:(CGRect)frame
     [super setFrame:frame];
 }
 
+- (CGSize)intrinsicContentSize
+{
+    //This progress view scales
+    return CGSizeMake(UIViewNoIntrinsicMetric, UIViewNoIntrinsicMetric);
+}
+
 #pragma mark Drawing
 
 - (void)drawRect:(CGRect)rect