From f20566c564e18f418c4ccc29fcf77d0471e49334 Mon Sep 17 00:00:00 2001
From: gmungoc <g.m.carstairs@dundee.ac.uk>
Date: Mon, 7 May 2018 10:46:26 +0100
Subject: [PATCH] JAL-2982 use configured background colour in PCA image
 export

---
 src/jalview/gui/PCAPanel.java        |   17 ++++++++---------
 src/jalview/gui/RotatableCanvas.java |    9 ++++-----
 2 files changed, 12 insertions(+), 14 deletions(-)

diff --git a/src/jalview/gui/PCAPanel.java b/src/jalview/gui/PCAPanel.java
index f0ba274..caa2fc2 100644
--- a/src/jalview/gui/PCAPanel.java
+++ b/src/jalview/gui/PCAPanel.java
@@ -389,7 +389,7 @@ public class PCAPanel extends GPCAPanel
     {
       pg.translate((int) pf.getImageableX(), (int) pf.getImageableY());
 
-      rc.drawBackground(pg, rc.bgColour);
+      rc.drawBackground(pg);
       rc.drawScene(pg);
       if (rc.drawAxes)
       {
@@ -432,20 +432,19 @@ public class PCAPanel extends GPCAPanel
 
     ImageMaker im;
 
-    if (type == ImageMaker.TYPE.PNG)
+    switch (type)
     {
+    case PNG:
       im = new ImageMaker(this, ImageMaker.TYPE.PNG,
               "Make PNG image from PCA", width, height, null, null, null, 0,
               false);
-    }
-    else if (type == jalview.util.ImageMaker.TYPE.EPS)
-    {
+      break;
+    case EPS:
       im = new ImageMaker(this, ImageMaker.TYPE.EPS,
               "Make EPS file from PCA", width, height, null,
               this.getTitle(), null, 0, false);
-    }
-    else
-    {
+      break;
+    default:
       im = new ImageMaker(this, ImageMaker.TYPE.SVG,
               "Make SVG file from PCA", width, height, null,
               this.getTitle(), null, 0, false);
@@ -453,7 +452,7 @@ public class PCAPanel extends GPCAPanel
 
     if (im.getGraphics() != null)
     {
-      rc.drawBackground(im.getGraphics(), Color.black);
+      rc.drawBackground(im.getGraphics());
       rc.drawScene(im.getGraphics());
       if (rc.drawAxes)
       {
diff --git a/src/jalview/gui/RotatableCanvas.java b/src/jalview/gui/RotatableCanvas.java
index 86fe483..b00055b 100755
--- a/src/jalview/gui/RotatableCanvas.java
+++ b/src/jalview/gui/RotatableCanvas.java
@@ -287,7 +287,7 @@ public class RotatableCanvas extends JPanel implements MouseListener,
         ig = img.getGraphics();
       }
 
-      drawBackground(ig, bgColour);
+      drawBackground(ig);
       drawScene(ig);
 
       if (drawAxes)
@@ -336,14 +336,13 @@ public class RotatableCanvas extends JPanel implements MouseListener,
   }
 
   /**
-   * Fills the background with the specified colour
+   * Fills the background with the currently configured background colour
    * 
    * @param g
-   * @param col
    */
-  public void drawBackground(Graphics g, Color col)
+  public void drawBackground(Graphics g)
   {
-    g.setColor(col);
+    g.setColor(bgColour);
     g.fillRect(0, 0, prefSize.width, prefSize.height);
   }
 
-- 
1.7.10.2