From 58d18d6a480062bc3083d68848af0a64280c3941 Mon Sep 17 00:00:00 2001
From: Evert Timberg <evert.timberg+github@gmail.com>
Date: Sat, 16 Apr 2016 21:46:29 -0400
Subject: [PATCH] Add configurable tick mark length. Use it to calculate
 appropriate sizing

---
 src/core/core.scale.js | 12 +++++++-----
 1 file changed, 7 insertions(+), 5 deletions(-)

diff --git a/src/core/core.scale.js b/src/core/core.scale.js
index 18c201eea..24881e128 100644
--- a/src/core/core.scale.js
+++ b/src/core/core.scale.js
@@ -14,6 +14,7 @@ module.exports = function(Chart) {
 			lineWidth: 1,
 			drawOnChartArea: true,
 			drawTicks: true,
+			tickMarkLength: 10,
 			zeroLineWidth: 1,
 			zeroLineColor: "rgba(0,0,0,0.25)",
 			offsetGridLines: false
@@ -271,12 +272,12 @@ module.exports = function(Chart) {
 				// subtract the margins to line up with the chartArea if we are a full width scale
 				this.minSize.width = this.isFullWidth() ? this.maxWidth - this.margins.left - this.margins.right : this.maxWidth;
 			} else {
-				this.minSize.width = this.options.gridLines.display && this.options.display ? 10 : 0;
+				this.minSize.width = this.options.gridLines.tickMarkLength;
 			}
 
 			// height
 			if (this.isHorizontal()) {
-				this.minSize.height = this.options.gridLines.display && this.options.display ? 10 : 0;
+				this.minSize.height = this.options.gridLines.tickMarkLength;
 			} else {
 				this.minSize.height = this.maxHeight; // fill all the height
 			}
@@ -451,6 +452,7 @@ module.exports = function(Chart) {
 				var tickFontStyle = helpers.getValueOrDefault(this.options.ticks.fontStyle, Chart.defaults.global.defaultFontStyle);
 				var tickFontFamily = helpers.getValueOrDefault(this.options.ticks.fontFamily, Chart.defaults.global.defaultFontFamily);
 				var tickLabelFont = helpers.fontString(tickFontSize, tickFontStyle, tickFontFamily);
+				var tl = this.options.gridLines.tickMarkLength;
 
 				var scaleLabelFontColor = helpers.getValueOrDefault(this.options.scaleLabel.fontColor, Chart.defaults.global.defaultFontColor);
 				var scaleLabelFontSize = helpers.getValueOrDefault(this.options.scaleLabel.fontSize, Chart.defaults.global.defaultFontSize);
@@ -468,8 +470,8 @@ module.exports = function(Chart) {
 
 				if (this.isHorizontal()) {
 					setContextLineSettings = true;
-					var yTickStart = this.options.position === "bottom" ? this.top : this.bottom - 10;
-					var yTickEnd = this.options.position === "bottom" ? this.top + 10 : this.bottom;
+					var yTickStart = this.options.position === "bottom" ? this.top : this.bottom - tl;
+					var yTickEnd = this.options.position === "bottom" ? this.top + tl : this.bottom;
 					skipRatio = false;
 
 					if (((longestRotatedLabel / 2) + this.options.ticks.autoSkipPadding) * this.ticks.length > (this.width - (this.paddingLeft + this.paddingRight))) {
@@ -537,7 +539,7 @@ module.exports = function(Chart) {
 
 						if (this.options.ticks.display) {
 							this.ctx.save();
-							this.ctx.translate(xLabelValue, (isRotated) ? this.top + 12 : this.options.position === "top" ? this.bottom - 10 : this.top + 10);
+							this.ctx.translate(xLabelValue, (isRotated) ? this.top + 12 : this.options.position === "top" ? this.bottom - tl : this.top + tl);
 							this.ctx.rotate(helpers.toRadians(this.labelRotation) * -1);
 							this.ctx.font = tickLabelFont;
 							this.ctx.textAlign = (isRotated) ? "right" : "center";
-- 
2.47.3