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am 696d2149: Merge "Match default color packing for captioning settings" into mnc-dev

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* commit '696d214946d0737a06976c9634b7095fc691fb31':
  Match default color packing for captioning settings
This commit is contained in:
Alan Viverette
2015-06-22 21:01:50 +00:00
committed by Android Git Automerger
parent fd68bb861c 696d214946
commit 823f51f3a2
1 changed files with 29 additions and 7 deletions
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36
core/java/android/view/accessibility/CaptioningManager.java
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@@ -266,11 +266,19 @@ public class CaptioningManager {
* background colors, edge properties, and typeface.
*/
public static final class CaptionStyle {
/** Packed value for a color of 'none' and a cached opacity of 100%. */
/**
* Packed value for a color of 'none' and a cached opacity of 100%.
*
* @hide
*/
private static final int COLOR_NONE_OPAQUE = 0x000000FF;
/** Packed value for an unspecified color and opacity. */
private static final int COLOR_UNSPECIFIED = 0x000001FF;
/**
* Packed value for a color of 'default' and opacity of 100%.
*
* @hide
*/
public static final int COLOR_UNSPECIFIED = 0x00FFFFFF;
private static final CaptionStyle WHITE_ON_BLACK;
private static final CaptionStyle BLACK_ON_WHITE;
@@ -350,11 +358,11 @@ public class CaptioningManager {
private CaptionStyle(int foregroundColor, int backgroundColor, int edgeType, int edgeColor,
int windowColor, String rawTypeface) {
mHasForegroundColor = foregroundColor != COLOR_UNSPECIFIED;
mHasBackgroundColor = backgroundColor != COLOR_UNSPECIFIED;
mHasForegroundColor = hasColor(foregroundColor);
mHasBackgroundColor = hasColor(backgroundColor);
mHasEdgeType = edgeType != EDGE_TYPE_UNSPECIFIED;
mHasEdgeColor = edgeColor != COLOR_UNSPECIFIED;
mHasWindowColor = windowColor != COLOR_UNSPECIFIED;
mHasEdgeColor = hasColor(edgeColor);
mHasWindowColor = hasColor(windowColor);
// Always use valid colors, even when no override is specified, to
// ensure backwards compatibility with apps targeting KitKat MR2.
@@ -367,6 +375,20 @@ public class CaptioningManager {
mRawTypeface = rawTypeface;
}
/**
* Returns whether a packed color indicates a non-default value.
*
* @param packedColor the packed color value
* @return {@code true} if a non-default value is specified
* @hide
*/
public static boolean hasColor(int packedColor) {
// Matches the color packing code from Settings. "Default" packed
// colors are indicated by zero alpha and non-zero red/blue. The
// cached alpha value used by Settings is stored in green.
return (packedColor >>> 24) != 0 || (packedColor & 0xFFFF00) == 0;
}
/**
* Applies a caption style, overriding any properties that are specified
* in the overlay caption.