xreversed, yreversed

Author: kasemir

epics-vtype/vtype/src/main/java/org/epics/vtype/IVImage.java

@@ -17,16 +17,19 @@ public class IVImage extends VImage {
     private final int width;
     private final int xoffset;
     private final int yoffset;
+    private final boolean xreversed;
+    private final boolean yreversed;
     private final ListNumber data;
     private final VImageDataType imageDataType;
     private final VImageType imageType;
 
     IVImage(int height, int width, ListNumber data, VImageDataType imageDataType, VImageType imageType, Alarm alarm,
             Time time) {
-        this(height, width, 0, 0, data, imageDataType, imageType, alarm, time);
+        this(height, width, 0, 0, false, false, data, imageDataType, imageType, alarm, time);
     }
 
-    IVImage(int height, int width, int xoffset, int yoffset, ListNumber data, VImageDataType imageDataType, VImageType imageType, Alarm alarm,
+    IVImage(int height, int width, int xoffset, int yoffset, boolean xreversed, boolean yreversed,
+            ListNumber data, VImageDataType imageDataType, VImageType imageType, Alarm alarm,
             Time time) {
         VType.argumentNotNull("alarm", alarm);
         VType.argumentNotNull("time", time);
@@ -36,6 +39,8 @@ public class IVImage extends VImage {
         this.width = width;
         this.xoffset = xoffset;
         this.yoffset = yoffset;
+        this.xreversed = xreversed;
+        this.yreversed = yreversed;
         this.data = data;
         this.imageDataType = imageDataType;
         this.imageType = imageType;
@@ -57,6 +62,14 @@ public int getYOffset() {
         return yoffset;
     }
 
+    public boolean isXReversed() {
+        return xreversed;
+    }
+
+    public boolean isYReversed() {
+        return yreversed;
+    }
+
     public ListNumber getData() {
         return data;
     }

epics-vtype/vtype/src/main/java/org/epics/vtype/VImage.java

@@ -49,6 +49,22 @@ public abstract class VImage extends VType implements AlarmProvider, TimeProvide
      */
     public abstract int getYOffset();
 
+    /**
+     * Is the horizontal axis reversed?
+     * Defaults to false.
+     *
+     * @return <code>true</code> if axis is reversed
+     */
+    public abstract boolean isXReversed();
+
+    /**
+     * Is the vertical axis reversed?
+     * Defaults to false.
+     *
+     * @return <code>true</code> if axis is reversed
+     */
+    public abstract boolean isYReversed();
+
     /**
      * Image data;
      *
@@ -85,7 +101,7 @@ public abstract class VImage extends VType implements AlarmProvider, TimeProvide
      * @return a new instance of VImage
      */
     public static VImage of(int height, int width, final ListNumber data, VImageDataType imageDataType, VImageType vImageType, Alarm alarm, Time time) {
-        return of(height, width, 0, 0, data, imageDataType, vImageType, alarm, time);
+        return of(height, width, 0, 0, false, false, data, imageDataType, vImageType, alarm, time);
     }
 
     /**
@@ -95,15 +111,18 @@ public static VImage of(int height, int width, final ListNumber data, VImageData
      * @param width image width
      * @param xoffset horizontal offset
      * @param yoffset vertical offset
+     * @param xreversed is horizontal axis reversed?
+     * @param yreversed is vertical axis reversed?
      * @param data image data
      * @param imageDataType image data type
      * @param vImageType image type
      * @param alarm alarm information
      * @param time timestamp
      * @return a new instance of VImage
      */
-    public static VImage of(int height, int width, int xoffset, int yoffset, final ListNumber data, VImageDataType imageDataType, VImageType vImageType, Alarm alarm, Time time) {
-        return new IVImage(height, width, xoffset, yoffset, data, imageDataType, vImageType, alarm, time);
+    public static VImage of(int height, int width, int xoffset, int yoffset, boolean xreversed, boolean yreversed,
+                            final ListNumber data, VImageDataType imageDataType, VImageType vImageType, Alarm alarm, Time time) {
+        return new IVImage(height, width, xoffset, yoffset, xreversed, yreversed, data, imageDataType, vImageType, alarm, time);
     }
 
     @Override