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Allow for arbitrary restrictions enforced by the app; fix for iOS4 #4

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018b74b
Dragging now works as expected when the left and right values are con…
Clafou Mar 30, 2013
98ec514
Fixes crash pre-iOS5
Clafou Apr 2, 2013
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2 changes: 2 additions & 0 deletions REDRangeSlider/REDRangeSlider/REDRangeSlider.h
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Original file line number Diff line number Diff line change
Expand Up @@ -15,6 +15,8 @@
@property (assign, nonatomic) CGFloat maxValue;
@property (assign, nonatomic) CGFloat leftValue;
@property (assign, nonatomic) CGFloat rightValue;
@property (assign, nonatomic) CGFloat rawLeftValue;
@property (assign, nonatomic) CGFloat rawRightValue;

@property (strong, nonatomic) UIImage *handleImage;
@property (strong, nonatomic) UIImage *leftHandleImage;
Expand Down
18 changes: 13 additions & 5 deletions REDRangeSlider/REDRangeSlider/REDRangeSlider.m
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Original file line number Diff line number Diff line change
Expand Up @@ -210,15 +210,19 @@ - (UIImage *)rightHandleHighlightedImage {

- (UIImage *)trackBackgroundImage {
if(!_trackBackgroundImage) {
UIImage *image = [[UIImage imageNamed:@"slider-track-background"] resizableImageWithCapInsets:UIEdgeInsetsMake(4, 5, 4, 5)];
UIImage *image = ([UIImage instancesRespondToSelector:@selector(resizableImageWithCapInsets:)])
? [[UIImage imageNamed:@"slider-track-background"] resizableImageWithCapInsets:UIEdgeInsetsMake(4, 5, 4, 5)] // iOS5+
: [[UIImage imageNamed:@"slider-track-background"] stretchableImageWithLeftCapWidth:5 topCapHeight:4]; // Same result, pre-iOS5 (deprecated from iOS5)
_trackBackgroundImage = image;
}
return _trackBackgroundImage;
}

- (UIImage *)trackFillImage {
if(!_trackFillImage) {
UIImage *image = [[UIImage imageNamed:@"slider-track-fill"] resizableImageWithCapInsets:UIEdgeInsetsMake(4, 5, 4, 5)];
UIImage *image = ([UIImage instancesRespondToSelector:@selector(resizableImageWithCapInsets:)])
? [[UIImage imageNamed:@"slider-track-fill"] resizableImageWithCapInsets:UIEdgeInsetsMake(4, 5, 4, 5)] // iOS5+
: [[UIImage imageNamed:@"slider-track-fill"] stretchableImageWithLeftCapWidth:5 topCapHeight:4]; // Same result, pre-iOS5 (deprecated from iOS5)
_trackFillImage = image;
}
return _trackFillImage;
Expand Down Expand Up @@ -254,6 +258,7 @@ - (void)leftHandlePanEngadged:(UIGestureRecognizer *)gesture {

if (panGesture.state == UIGestureRecognizerStateBegan) {
self.leftHandle.highlighted = YES;
self.rawLeftValue = self.leftValue;
}
else if (panGesture.state == UIGestureRecognizerStateChanged) {

Expand All @@ -262,8 +267,9 @@ - (void)leftHandlePanEngadged:(UIGestureRecognizer *)gesture {

CGFloat trackOneHundredPercent = self.trackWidth-self.handleImage.size.width;
CGFloat trackPercentageChange = (pointInView.x / trackOneHundredPercent)*100;

self.leftValue += (trackPercentageChange/100.0) * oneHundredPercentOfValues;

self.rawLeftValue += (trackPercentageChange/100.0) * oneHundredPercentOfValues;
self.leftValue = self.rawLeftValue;

[panGesture setTranslation:CGPointZero inView:self];
[self sendActionsForControlEvents:UIControlEventValueChanged];
Expand All @@ -283,6 +289,7 @@ - (void)rightHandlePanEngadged:(UIGestureRecognizer *)gesture {

if (panGesture.state == UIGestureRecognizerStateBegan) {
self.rightHandle.highlighted = YES;
self.rawRightValue = self.rightValue;
}
if (panGesture.state == UIGestureRecognizerStateChanged) {

Expand All @@ -292,7 +299,8 @@ - (void)rightHandlePanEngadged:(UIGestureRecognizer *)gesture {
CGFloat trackOneHundredPercent = self.trackWidth-self.handleImage.size.width;
CGFloat trackPercentageChange = (pointInView.x / trackOneHundredPercent)*100;

self.rightValue += (trackPercentageChange/100.0) * oneHundredPercentOfValues;
self.rawRightValue += (trackPercentageChange/100.0) * oneHundredPercentOfValues;
self.rightValue = self.rawRightValue;

[panGesture setTranslation:CGPointZero inView:self];
[self sendActionsForControlEvents:UIControlEventValueChanged];
Expand Down
3 changes: 3 additions & 0 deletions REDRangeSlider/REDViewController.h
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Original file line number Diff line number Diff line change
Expand Up @@ -13,5 +13,8 @@

@property (weak, nonatomic) IBOutlet UILabel *leftValueLabel;
@property (weak, nonatomic) IBOutlet UILabel *rightValueLabel;
@property (weak, nonatomic) IBOutlet UISegmentedControl *restrictionSegmentedControl;

- (IBAction)segmentedControlChanged:(id)sender;

@end
17 changes: 17 additions & 0 deletions REDRangeSlider/REDViewController.m
View file
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Original file line number Diff line number Diff line change
Expand Up @@ -29,6 +29,8 @@ - (void)viewDidLoad {
self.rangeSlider = [[REDRangeSlider alloc] initWithFrame:CGRectMake(0, 0, 200, 20)];
self.rangeSlider.center = self.view.center;
[self.rangeSlider addTarget:self action:@selector(rangeSliderValueChanged:) forControlEvents:UIControlEventValueChanged];
self.rangeSlider.minValue = 0.0;
self.rangeSlider.maxValue = 20.0;

[self.view addSubview:self.rangeSlider];
[self updateSliderLabels];
Expand All @@ -43,9 +45,24 @@ - (void)didReceiveMemoryWarning {

- (void)rangeSliderValueChanged:(id)sender {

switch (self.restrictionSegmentedControl.selectedSegmentIndex) {
case 1:
self.rangeSlider.leftValue = roundf(self.rangeSlider.leftValue);
self.rangeSlider.rightValue = roundf(self.rangeSlider.rightValue);
break;
case 2:
self.rangeSlider.rightValue = self.rangeSlider.maxValue - self.rangeSlider.minValue - self.rangeSlider.leftValue;
break;
}

[self updateSliderLabels];
}

- (void)segmentedControlChanged:(id)sender {
[self rangeSliderValueChanged:sender];
}


#pragma mark -

- (void)updateSliderLabels {
Expand Down
158 changes: 156 additions & 2 deletions REDRangeSlider/en.lproj/REDViewController.xib
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Original file line number Diff line number Diff line change
Expand Up @@ -14,6 +14,7 @@
<string>IBNSLayoutConstraint</string>
<string>IBProxyObject</string>
<string>IBUILabel</string>
<string>IBUISegmentedControl</string>
<string>IBUIView</string>
</array>
<array key="IBDocument.PluginDependencies">
Expand Down Expand Up @@ -74,7 +75,7 @@
<string key="NSFrame">{{228, 20}, {72, 21}}</string>
<reference key="NSSuperview" ref="774585933"/>
<reference key="NSWindow"/>
<reference key="NSNextKeyView"/>
<reference key="NSNextKeyView" ref="326646486"/>
<string key="NSReuseIdentifierKey">_NS:9</string>
<bool key="IBUIOpaque">NO</bool>
<bool key="IBUIClipsSubviews">YES</bool>
Expand All @@ -89,6 +90,44 @@
<reference key="IBUIFont" ref="67625427"/>
<bool key="IBUIAdjustsFontSizeToFit">NO</bool>
</object>
<object class="IBUISegmentedControl" id="326646486">
<reference key="NSNextResponder" ref="774585933"/>
<int key="NSvFlags">292</int>
<string key="NSFrame">{{10, 360}, {300, 30}}</string>
<reference key="NSSuperview" ref="774585933"/>
<reference key="NSWindow"/>
<string key="NSReuseIdentifierKey">_NS:9</string>
<bool key="IBUIOpaque">NO</bool>
<string key="targetRuntimeIdentifier">IBCocoaTouchFramework</string>
<int key="IBSegmentControlStyle">2</int>
<int key="IBNumberOfSegments">3</int>
<int key="IBSelectedSegmentIndex">0</int>
<array key="IBSegmentTitles">
<string>Unrestricted</string>
<string>Integers</string>
<string>Mirrored right</string>
</array>
<array class="NSMutableArray" key="IBSegmentWidths">
<real value="0.0"/>
<real value="0.0"/>
<real value="0.0"/>
</array>
<array class="NSMutableArray" key="IBSegmentEnabledStates">
<boolean value="YES"/>
<boolean value="YES"/>
<boolean value="YES"/>
</array>
<array class="NSMutableArray" key="IBSegmentContentOffsets">
<string>{0, 0}</string>
<string>{0, 0}</string>
<string>{0, 0}</string>
</array>
<array class="NSMutableArray" key="IBSegmentImages">
<object class="NSNull" id="4"/>
<reference ref="4"/>
<reference ref="4"/>
</array>
</object>
</array>
<string key="NSFrame">{{0, 20}, {320, 548}}</string>
<reference key="NSSuperview"/>
Expand Down Expand Up @@ -149,6 +188,23 @@
</object>
<int key="connectionID">24</int>
</object>
<object class="IBConnectionRecord">
<object class="IBCocoaTouchOutletConnection" key="connection">
<string key="label">restrictionSegmentedControl</string>
<reference key="source" ref="372490531"/>
<reference key="destination" ref="326646486"/>
</object>
<int key="connectionID">40</int>
</object>
<object class="IBConnectionRecord">
<object class="IBCocoaTouchEventConnection" key="connection">
<string key="label">segmentedControlChanged:</string>
<reference key="source" ref="326646486"/>
<reference key="destination" ref="372490531"/>
<int key="IBEventType">13</int>
</object>
<int key="connectionID">54</int>
</object>
</array>
<object class="IBMutableOrderedSet" key="objectRecords">
<array key="orderedObjects">
Expand All @@ -173,6 +229,38 @@
<int key="objectID">6</int>
<reference key="object" ref="774585933"/>
<array class="NSMutableArray" key="children">
<object class="IBNSLayoutConstraint" id="704100694">
<reference key="firstItem" ref="326646486"/>
<int key="firstAttribute">9</int>
<int key="relation">0</int>
<reference key="secondItem" ref="774585933"/>
<int key="secondAttribute">9</int>
<float key="multiplier">1</float>
<object class="IBLayoutConstant" key="constant">
<double key="value">0.0</double>
</object>
<float key="priority">1000</float>
<reference key="containingView" ref="774585933"/>
<int key="scoringType">5</int>
<float key="scoringTypeFloat">22</float>
<int key="contentType">2</int>
</object>
<object class="IBNSLayoutConstraint" id="904163028">
<reference key="firstItem" ref="774585933"/>
<int key="firstAttribute">4</int>
<int key="relation">0</int>
<reference key="secondItem" ref="326646486"/>
<int key="secondAttribute">4</int>
<float key="multiplier">1</float>
<object class="IBLayoutConstant" key="constant">
<double key="value">159</double>
</object>
<float key="priority">1000</float>
<reference key="containingView" ref="774585933"/>
<int key="scoringType">3</int>
<float key="scoringTypeFloat">9</float>
<int key="contentType">3</int>
</object>
<object class="IBNSLayoutConstraint" id="251388100">
<reference key="firstItem" ref="774585933"/>
<int key="firstAttribute">6</int>
Expand Down Expand Up @@ -255,6 +343,7 @@
</object>
<reference ref="196987144"/>
<reference ref="672011645"/>
<reference ref="326646486"/>
</array>
<reference key="parent" ref="0"/>
</object>
Expand Down Expand Up @@ -362,6 +451,44 @@
<reference key="object" ref="1037484397"/>
<reference key="parent" ref="196987144"/>
</object>
<object class="IBObjectRecord">
<int key="objectID">36</int>
<reference key="object" ref="326646486"/>
<array class="NSMutableArray" key="children">
<object class="IBNSLayoutConstraint" id="765535082">
<reference key="firstItem" ref="326646486"/>
<int key="firstAttribute">7</int>
<int key="relation">0</int>
<nil key="secondItem"/>
<int key="secondAttribute">0</int>
<float key="multiplier">1</float>
<object class="IBLayoutConstant" key="constant">
<double key="value">300</double>
</object>
<float key="priority">1000</float>
<reference key="containingView" ref="326646486"/>
<int key="scoringType">3</int>
<float key="scoringTypeFloat">9</float>
<int key="contentType">1</int>
</object>
</array>
<reference key="parent" ref="774585933"/>
</object>
<object class="IBObjectRecord">
<int key="objectID">50</int>
<reference key="object" ref="904163028"/>
<reference key="parent" ref="774585933"/>
</object>
<object class="IBObjectRecord">
<int key="objectID">52</int>
<reference key="object" ref="765535082"/>
<reference key="parent" ref="326646486"/>
</object>
<object class="IBObjectRecord">
<int key="objectID">53</int>
<reference key="object" ref="704100694"/>
<reference key="parent" ref="774585933"/>
</object>
</array>
</object>
<dictionary class="NSMutableDictionary" key="flattenedProperties">
Expand All @@ -382,13 +509,24 @@
<string key="22.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
<string key="25.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
<string key="26.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
<string key="36.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
<array key="36.IBViewMetadataConstraints">
<reference ref="765535082"/>
</array>
<boolean value="NO" key="36.IBViewMetadataTranslatesAutoresizingMaskIntoConstraints"/>
<integer value="1" key="36.IUISegmentedControlInspectorSelectedSegmentMetadataKey"/>
<string key="50.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
<string key="52.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
<string key="53.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
<string key="6.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
<array class="NSMutableArray" key="6.IBViewMetadataConstraints">
<reference ref="759509756"/>
<reference ref="67870490"/>
<reference ref="511148964"/>
<reference ref="846149576"/>
<reference ref="251388100"/>
<reference ref="904163028"/>
<reference ref="704100694"/>
</array>
<string key="8.IBPluginDependency">com.apple.InterfaceBuilder.IBCocoaTouchPlugin</string>
<array class="NSMutableArray" key="8.IBViewMetadataConstraints">
Expand All @@ -401,7 +539,7 @@
<nil key="activeLocalization"/>
<dictionary class="NSMutableDictionary" key="localizations"/>
<nil key="sourceID"/>
<int key="maxID">35</int>
<int key="maxID">54</int>
</object>
<object class="IBClassDescriber" key="IBDocument.Classes">
<array class="NSMutableArray" key="referencedPartialClassDescriptions">
Expand All @@ -416,15 +554,31 @@
<object class="IBPartialClassDescription">
<string key="className">REDViewController</string>
<string key="superclassName">UIViewController</string>
<object class="NSMutableDictionary" key="actions">
<string key="NS.key.0">segmentedControlChanged:</string>
<string key="NS.object.0">id</string>
</object>
<object class="NSMutableDictionary" key="actionInfosByName">
<string key="NS.key.0">segmentedControlChanged:</string>
<object class="IBActionInfo" key="NS.object.0">
<string key="name">segmentedControlChanged:</string>
<string key="candidateClassName">id</string>
</object>
</object>
<dictionary class="NSMutableDictionary" key="outlets">
<string key="leftValueLabel">UILabel</string>
<string key="restrictionSegmentedControl">UISegmentedControl</string>
<string key="rightValueLabel">UILabel</string>
</dictionary>
<dictionary class="NSMutableDictionary" key="toOneOutletInfosByName">
<object class="IBToOneOutletInfo" key="leftValueLabel">
<string key="name">leftValueLabel</string>
<string key="candidateClassName">UILabel</string>
</object>
<object class="IBToOneOutletInfo" key="restrictionSegmentedControl">
<string key="name">restrictionSegmentedControl</string>
<string key="candidateClassName">UISegmentedControl</string>
</object>
<object class="IBToOneOutletInfo" key="rightValueLabel">
<string key="name">rightValueLabel</string>
<string key="candidateClassName">UILabel</string>
Expand Down