use DIPs for ArrowedText

app/src/main/java/ch/blinkenlights/android/vanilla/LibraryActivity.java

@@ -523,16 +523,14 @@ public class LibraryActivity
 					colors[1] = tmp;
 				}
 
-				int rightPadding = 2;
 				if (last) {
 					colors[1] = 0xFF404040;
-					rightPadding = 0;
 					view.setOnClickListener(this);
 				}
 
 				int leftPadding = 14;
 				if (first) {
-					leftPadding = 4;
+					leftPadding = 6;
 					colors[0] = colors[1];
 				}
 
@@ -541,22 +539,23 @@ public class LibraryActivity
 				view.setText(txt);
 				view.setTextColor(Color.WHITE);
 				view.setLayoutParams(params);
-				view.setPadding(leftPadding, 6, rightPadding, 6);
-				view.setArrowWidth(arrowWidth);
+				view.setPaddingDIP(leftPadding, 2, 6, 2);
+				view.setArrowWidthDIP(arrowWidth);
 				view.setTag(i);
 				view.setColors(colors[0], colors[1]);
 				mLimiterViews.addView(view);
 
 				if (last) {
+					final int ap = 10;
 					ArrowedText end = new ArrowedText(this);
 					end.setOnClickListener(this);
 					end.setText("×");
 					end.setTextColor(0xFFB0B0B0);
 					end.setLayoutParams(params);
-					end.setPadding(6, 6, 0, 6);
-					end.setArrowPadding(14);
-					end.setArrowWidth(arrowWidth);
-					end.setMinWidth(arrowWidth+14);
+					end.setPaddingDIP(0, 2, 0, 2);
+					end.setArrowWidthDIP(arrowWidth);
+					end.setArrowPaddingDIP(ap);
+					end.setMinWidthDIP(arrowWidth+ap);
 					end.setTag(i);
 					end.setColors(colors[1], 0);
 					mLimiterViews.addView(end);

app/src/main/java/ch/blinkenlights/android/vanilla/ui/ArrowedText.java

@@ -34,36 +34,58 @@ public class ArrowedText extends TextView {
 	 * Context this view uses.
 	 */
 	Context mContext;
+	/**
+	 * Display density of the device.
+	 */
+	float mDensity;
 	/**
 	 * Color of the arrow on the left side.
 	 */
 	int mArrowColor;
 	/**
-	 * Controls the width of the drawn arrow.
+	 * Controls the width of the drawn arrow in DIP.
 	 */
 	float mArrowWidth;
 	/**
-	 * 'padding' space (used left side) for the arrow to consume.
+	 * 'padding' space (used left side) for the arrow to consume in DIP.
 	 */
-	int mArrowPadding;
+	float mArrowPadding;
 
 	public ArrowedText(Context context) {
 		super(context);
 		mContext = context;
+		mDensity = context.getResources().getDisplayMetrics().density;
 	}
 
 	/**
 	 * Configures the width of the arrow.
 	 */
-	public void setArrowWidth(int w) {
-		mArrowWidth = w;
+	public void setArrowWidthDIP(float w) {
+		mArrowWidth = w * mDensity;
 	}
 
 	/**
 	 * Configures how much space the arrow uses on the left side.
 	 */
-	public void setArrowPadding(int p) {
-		mArrowPadding = p;
+	public void setArrowPaddingDIP(float p) {
+		mArrowPadding = p * mDensity;
+	}
+
+	/**
+	 * Configures the padding of this view in DIP.
+	 */
+	public void setPaddingDIP(float left, float top, float right, float bottom) {
+		setPadding((int)(left*mDensity),
+				   (int)(top*mDensity),
+				   (int)(right*mDensity),
+				   (int)(bottom*mDensity));
+	}
+
+	/**
+	 * Configures the minimal width of this view in DIP.
+	 */
+	public void setMinWidthDIP(float w) {
+		setMinWidth((int)(w*mDensity));
 	}
 
 	/**