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Fixes the distance issue between the legend and the horizontal bar chart (Fixes #2138) #2214

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merged 3 commits into from
Jan 21, 2018
Merged

Fixes the distance issue between the legend and the horizontal bar chart (Fixes #2138) #2214

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7f5e1e4
Fixes the distance issue between the legend and the horizontal bar ch…
SvenMuc Mar 2, 2017
7b6d847
Merge branch 'master' into fix-legendDistanceHorizontalBarChart
SvenMuc Jan 16, 2018
cdf3a77
Added guard for _legend status
SvenMuc Jan 17, 2018
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63 changes: 62 additions & 1 deletion Source/Charts/Charts/HorizontalBarChartView.swift
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Original file line number Diff line number Diff line change
Expand Up @@ -34,6 +34,67 @@ open class HorizontalBarChartView: BarChartView
self.highlighter = HorizontalBarHighlighter(chart: self)
}

internal override func calculateLegendOffsets(offsetLeft: inout CGFloat, offsetTop: inout CGFloat, offsetRight: inout CGFloat, offsetBottom: inout CGFloat)
{
guard
let legend = _legend,
legend.isEnabled,
legend.drawInside
else { return }

// setup offsets for legend
switch legend.orientation
{
case .vertical:
switch legend.horizontalAlignment
{
case .left:
offsetLeft += min(legend.neededWidth, _viewPortHandler.chartWidth * legend.maxSizePercent) + legend.xOffset

case .right:
offsetRight += min(legend.neededWidth, _viewPortHandler.chartWidth * legend.maxSizePercent) + legend.xOffset

case .center:

switch legend.verticalAlignment
{
case .top:
offsetTop += min(legend.neededHeight, _viewPortHandler.chartHeight * legend.maxSizePercent) + legend.yOffset

case .bottom:
offsetBottom += min(legend.neededHeight, _viewPortHandler.chartHeight * legend.maxSizePercent) + legend.yOffset

default:
break
}
}

case .horizontal:
switch legend.verticalAlignment
{
case .top:
offsetTop += min(legend.neededHeight, _viewPortHandler.chartHeight * legend.maxSizePercent) + legend.yOffset

// left axis equals the top x-axis in a horizontal chart
if leftAxis.isEnabled && leftAxis.isDrawLabelsEnabled
{
offsetTop += leftAxis.getRequiredHeightSpace()
}

case .bottom:
offsetBottom += min(legend.neededHeight, _viewPortHandler.chartHeight * legend.maxSizePercent) + legend.yOffset

// right axis equals the bottom x-axis in a horizontal chart
if rightAxis.isEnabled && rightAxis.isDrawLabelsEnabled
{
offsetBottom += rightAxis.getRequiredHeightSpace()
}
default:
break
}
}
}

internal override func calculateOffsets()
{
var offsetLeft: CGFloat = 0.0,
Expand Down Expand Up @@ -81,7 +142,7 @@ open class HorizontalBarChartView: BarChartView
offsetRight += self.extraRightOffset
offsetBottom += self.extraBottomOffset
offsetLeft += self.extraLeftOffset

_viewPortHandler.restrainViewPort(
offsetLeft: max(self.minOffset, offsetLeft),
offsetTop: max(self.minOffset, offsetTop),
Expand Down