--- a/src/viewer_swing/java/com/glavsoft/viewer/UiSettings.java	Thu Jan 22 01:02:19 2015 +0900
+++ b/src/viewer_swing/java/com/glavsoft/viewer/UiSettings.java	Thu Jan 22 11:17:50 2015 +0900
@@ -108,10 +108,10 @@
 	    fireListeners();
     }
 
-    public void adjustHdSize(int width) {
+    public void adjustHdSize(int singleWidth) {
         double hdWidth = 1920.0;
         double defaultScaleFactor = 100.0;
-        double scaleFactor = (hdWidth / width) * defaultScaleFactor;
+        double scaleFactor = (hdWidth / singleWidth) * defaultScaleFactor;
         if (scaleFactor > MAX_SCALE_PERCENT) {
             scaleFactor = MAX_SCALE_PERCENT;
         }
@@ -197,4 +197,27 @@
                 '}';
     }
 
+    public void fitScreen(int thisScreenWidth, int thisScreenHeight, int singleWidth, int singleHeight) {
+        double doubleThisWidth = (double) thisScreenWidth;
+        double doubleThisHeight = (double) thisScreenHeight;
+
+        double widthScale = (doubleThisWidth/singleWidth);
+        double heightScale = (doubleThisHeight/singleHeight);
+        double defaultScaleFactor = 100.0;
+        double scaleFactor = 100.0;
+
+        double diff = widthScale - heightScale;
+
+        if(diff == 0) {
+            scaleFactor = defaultScaleFactor * widthScale;
+            setScalePercent(scaleFactor);
+        } else if(diff > 0) {
+            scaleFactor = defaultScaleFactor * heightScale;
+        }
+        if (scaleFactor > MAX_SCALE_PERCENT) {
+            scaleFactor = MAX_SCALE_PERCENT;
+        }
+        setScalePercent(scaleFactor);
+        fireListeners();
+    }
 }