Make <font size> and <font height> in string resources respect density.

This unfortunately requires API changes because the existing text markup
classes had no access to the screen density.

TextPaint gains a "density" field so that TextView can pass the density
along.  AbsoluteSizeSpan gains a new flag to indicate that its argument
is in dip instead of in physical pixels.  LineHeightSpan gains an inner
interface whose chooseHeight() method includes a TextPaint argument so
it can get at the density.  And when StringBlock creates the markup
objects, it now uses the density-aware versions.

Bug 1976971, Bug 2031746

1 files changed, 2 insertions, 0 deletions

diff --git a/core/java/android/text/TextPaint.java b/core/java/android/text/TextPaint.java
index f13820d3a885..f9e7cac6c505 100644
--- a/core/java/android/text/TextPaint.java
+++ b/core/java/android/text/TextPaint.java
@@ -27,6 +27,7 @@ public class TextPaint extends Paint {
     public int baselineShift;
     public int linkColor;
     public int[] drawableState;
+    public float density = 1.0f;
 
     public TextPaint() {
         super();
@@ -51,5 +52,6 @@ public class TextPaint extends Paint {
         baselineShift = tp.baselineShift;
         linkColor = tp.linkColor;
         drawableState = tp.drawableState;
+        density = tp.density;
     }
 }