Update DPI retrieval acording latest Gdx changes.

Author: bladecoder

blade-engine/src/com/bladecoder/engine/util/DPIUtils.java

@@ -4,54 +4,56 @@
 
 public class DPIUtils {
 	public final static float BASE_DPI = 160.0f;
-	
+
 	/**
 	 * Current DPI
 	 */
-	public final static float DPI = BASE_DPI * Gdx.graphics.getDensity();
+	public final static float DPI = BASE_DPI * getLogicalDensity();
 
 	/**
 	 * The Google recommendations are 48 dp -> 9mm for touchable elements
 	 */
-	public final static float TOUCH_MIN_SIZE = 48 * Gdx.graphics.getDensity();
+	public final static float TOUCH_MIN_SIZE = 48 * getLogicalDensity();
 
 	/**
 	 * The Google recommendations of space between UI objects is 8 dp
 	 */
-	public final static float UI_SPACE = 8 * Gdx.graphics.getDensity();
+	public final static float UI_SPACE = 8 * getLogicalDensity();
 
 	/**
 	 * The Google recommendations of space from bottom or top is 16 dp
 	 */
-	public final static float MARGIN_SIZE = 16 * Gdx.graphics.getDensity();
+	public final static float MARGIN_SIZE = 16 * getLogicalDensity();
 
 	/**
 	 * The Google recommendations are 56 dp for action buttons
 	 */
-	public final static float BUTTON_SIZE = 56 * Gdx.graphics.getDensity();
-	
+	public final static float BUTTON_SIZE = 56 * getLogicalDensity();
+
 	/**
 	 * The Google recommendations are 24 dp for icons inside action buttons
 	 */
-	public final static float ICON_SIZE = 24 * Gdx.graphics.getDensity();
+	public final static float ICON_SIZE = 24 * getLogicalDensity();
 
-	
 	/**
 	 * The Google recommendations are 8 dp for space between ui elements
 	 */
-	public final static float SPACING = 8 * Gdx.graphics.getDensity();
+	public final static float SPACING = 8 * getLogicalDensity();
 
 	/**
 	 * The screen height in DP
 	 */
-	public final static float SCREEN_HEIGHT_DP = Gdx.graphics.getHeight()
-			/ Gdx.graphics.getDensity();
+	public final static float SCREEN_HEIGHT_DP = Gdx.graphics.getHeight() / getLogicalDensity();
 
 	public final static float NORMAL_MULTIPLIER = 1.0f; // 3-5"
 	public final static float LARGE_MULTIPLIER = 1.5f; // 5-7"
 	public final static float XLARGE_MULTIPLIER = 2f; // 8-10"
 	public final static float XXLARGE_MULTIPLIER = 2.5f; // > 10"
 
+	public static final float getLogicalDensity() {
+		return Gdx.graphics.getDensity() / Gdx.graphics.getBackBufferScale();
+	}
+
 	/**
 	 * Calcs the button size based in screen size
 	 *
@@ -60,7 +62,7 @@ public class DPIUtils {
 	public static float getPrefButtonSize() {
 		return getSizeMultiplier() * BUTTON_SIZE;
 	}
-	
+
 	/**
 	 * Calcs the minimum size based in screen size
 	 *
@@ -69,7 +71,7 @@ public static float getPrefButtonSize() {
 	public static float getTouchMinSize() {
 		return getSizeMultiplier() * TOUCH_MIN_SIZE;
 	}
-	
+
 	/**
 	 * Calcs the margin size based in screen size
 	 *
@@ -78,7 +80,7 @@ public static float getTouchMinSize() {
 	public static float getMarginSize() {
 		return getSizeMultiplier() * MARGIN_SIZE;
 	}
-	
+
 	/**
 	 * Calcs the space between ui elements based in screen size
 	 *
@@ -103,7 +105,7 @@ public static float getSpacing() {
 //		return NORMAL_MULTIPLIER;
 //
 //	}
-	
+
 	public static float getSizeMultiplier() {
 		float inches = pixelsToInches(Gdx.graphics.getWidth());
 		float s = inches / 6f;
@@ -113,17 +115,17 @@ public static float getSizeMultiplier() {
 	}
 
 	public static int dpToPixels(int dp) {
-		return (int) (dp * Gdx.graphics.getDensity());
+		return (int) (dp * getLogicalDensity());
 	}
-	
+
 	public static int pixelsToDP(int pixels) {
-		return (int) (pixels / Gdx.graphics.getDensity());
+		return (int) (pixels / getLogicalDensity());
 	}
-	
+
 	public static float pixelsToInches(int pixels) {
-		return (float)pixels / DPI;
+		return pixels / DPI;
 	}
-	
+
 	public static float ptToPixels(float pts) {
 		return pts * 72 / DPI;
 	}