when determining X-Axis height, consider all labels, not just the first one

xchart/src/main/java/com/xeiam/xchart/internal/chartpart/Axis.java

@@ -158,23 +158,23 @@ public class Axis implements ChartPart {
 
           getChartPainter().getWidth()
 
-              - width // y-axis approx. width
+          - width // y-axis approx. width
 
-              - chartLegendWidth
+          - chartLegendWidth
 
-              - 2
-          * getChartPainter().getStyleManager().getChartPadding()
+          - 2
+              * getChartPainter().getStyleManager().getChartPadding()
 
-              - (getChartPainter().getStyleManager().isYAxisTicksVisible() ? (getChartPainter().getStyleManager().getPlotPadding()) : 0)
+          - (getChartPainter().getStyleManager().isYAxisTicksVisible() ? (getChartPainter().getStyleManager().getPlotPadding()) : 0)
 
-              - (getChartPainter().getStyleManager().getLegendPosition() == LegendPosition.OutsideE && getChartPainter().getStyleManager().isLegendVisible() ? getChartPainter().getStyleManager()
-                  .getChartPadding() : 0)
+          - (getChartPainter().getStyleManager().getLegendPosition() == LegendPosition.OutsideE && getChartPainter().getStyleManager().isLegendVisible() ? getChartPainter().getStyleManager()
+              .getChartPadding() : 0)
 
-      ;
+              ;
 
       double height =
           getChartPainter().getHeight() - yOffset - axisPair.getXAxis().getXAxisHeightHint(approximateXAxisWidth) - getChartPainter().getStyleManager().getPlotPadding()
-          - getChartPainter().getStyleManager().getChartPadding();
+              - getChartPainter().getStyleManager().getChartPadding();
       Rectangle2D yAxisRectangle = new Rectangle2D.Double(xOffset, yOffset, width, height);
       this.paintZone = yAxisRectangle;
       // g.setColor(Color.green);
@@ -201,7 +201,7 @@ public class Axis implements ChartPart {
 
       double xOffset =
           axisPair.getYAxis().getBounds().getWidth() + (getChartPainter().getStyleManager().isYAxisTicksVisible() ? getChartPainter().getStyleManager().getPlotPadding() : 0)
-              + getChartPainter().getStyleManager().getChartPadding();
+          + getChartPainter().getStyleManager().getChartPadding();
       double yOffset = axisPair.getYAxis().getBounds().getY() + axisPair.getYAxis().getBounds().getHeight() + getChartPainter().getStyleManager().getPlotPadding();
 
       double chartLegendWidth = 0;
@@ -213,26 +213,26 @@ public class Axis implements ChartPart {
 
           getChartPainter().getWidth()
 
-              - axisPair.getYAxis().getBounds().getWidth() // y-axis was already painted
+          - axisPair.getYAxis().getBounds().getWidth() // y-axis was already painted
 
-              - chartLegendWidth
+          - chartLegendWidth
 
-              - 2
-          * getChartPainter().getStyleManager().getChartPadding()
+          - 2
+              * getChartPainter().getStyleManager().getChartPadding()
 
-              - (getChartPainter().getStyleManager().isYAxisTicksVisible() ? (getChartPainter().getStyleManager().getPlotPadding()) : 0)
+          - (getChartPainter().getStyleManager().isYAxisTicksVisible() ? (getChartPainter().getStyleManager().getPlotPadding()) : 0)
 
-              - (getChartPainter().getStyleManager().getLegendPosition() == LegendPosition.OutsideE && getChartPainter().getStyleManager().isLegendVisible() ? getChartPainter().getStyleManager()
-                  .getChartPadding() : 0)
+          - (getChartPainter().getStyleManager().getLegendPosition() == LegendPosition.OutsideE && getChartPainter().getStyleManager().isLegendVisible() ? getChartPainter().getStyleManager()
+              .getChartPadding() : 0)
 
-      ;
+              ;
 
       // double height = this.getXAxisHeightHint(width);
       // System.out.println("height: " + height);
       // the Y-Axis was already draw at this point so we know how much vertical room is left for the X-Axis
       double height =
           getChartPainter().getHeight() - axisPair.getYAxis().getBounds().getY() - axisPair.getYAxis().getBounds().getHeight() - getChartPainter().getStyleManager().getChartPadding()
-          - getChartPainter().getStyleManager().getPlotPadding();
+              - getChartPainter().getStyleManager().getPlotPadding();
       // System.out.println("height2: " + height2);
 
       Rectangle2D xAxisRectangle = new Rectangle2D.Double(xOffset, yOffset, width, height);
@@ -277,6 +277,12 @@ public class Axis implements ChartPart {
       // get some real tick labels
       AxisTickCalculator axisTickCalculator = axisTick.getAxisTickCalculator(workingSpace);
       String sampleLabel = axisTickCalculator.getTickLabels().get(0);
+      // find the longest String in all the labels
+      for (int i = 1; i < axisTickCalculator.getTickLabels().size(); i++) {
+        if (axisTickCalculator.getTickLabels().get(i).length() > sampleLabel.length()) {
+          sampleLabel = axisTickCalculator.getTickLabels().get(i);
+        }
+      }
 
       TextLayout textLayout = new TextLayout(sampleLabel, getChartPainter().getStyleManager().getAxisTickLabelsFont(), new FontRenderContext(null, true, false));
       AffineTransform rot =