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Merge "Add View.getResolvedLayoutDirection()"

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This commit is contained in:
Fabrice Di Meglio
2011-06-14 16:23:06 -07:00
committed by Android (Google) Code Review
parent 051d16ebec c0053223be
commit e460e6d718
18 changed files with 124 additions and 65 deletions
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15
core/java/android/view/Gravity.java
View File

@@ -151,13 +151,13 @@ public class Gravity
* width and height of the object.
* @param outRect Receives the computed frame of the object in its
* container.
* @param isRtl Whether the layout is right-to-left.
* @param layoutDirection The layout direction.
*
* @hide
*/
public static void apply(int gravity, int w, int h, Rect container,
Rect outRect, boolean isRtl) {
int absGravity = getAbsoluteGravity(gravity, isRtl);
Rect outRect, int layoutDirection) {
int absGravity = getAbsoluteGravity(gravity, layoutDirection);
apply(absGravity, w, h, container, 0, 0, outRect);
}
@@ -347,18 +347,19 @@ public class Gravity
* if horizontal direction is LTR, then START will set LEFT and END will set RIGHT.
* if horizontal direction is RTL, then START will set RIGHT and END will set LEFT.
*
*
* @param gravity The gravity to convert to absolute (horizontal) values.
* @param isRtl Whether the layout is right-to-left.
* @param layoutDirection The layout direction.
* @return gravity converted to absolute (horizontal) values.
*/
public static int getAbsoluteGravity(int gravity, boolean isRtl) {
public static int getAbsoluteGravity(int gravity, int layoutDirection) {
int result = gravity;
// If layout is script specific and gravity is horizontal relative (START or END)
if ((result & RELATIVE_LAYOUT_DIRECTION) > 0) {
if ((result & Gravity.START) == Gravity.START) {
// Remove the START bit
result &= ~START;
if (isRtl) {
if (layoutDirection == View.LAYOUT_DIRECTION_RTL) {
// Set the RIGHT bit
result |= RIGHT;
} else {
@@ -368,7 +369,7 @@ public class Gravity
} else if ((result & Gravity.END) == Gravity.END) {
// Remove the END bit
result &= ~END;
if (isRtl) {
if (layoutDirection == View.LAYOUT_DIRECTION_RTL) {
// Set the LEFT bit
result |= LEFT;
} else {

65
core/java/android/view/View.java
View File

@@ -4272,6 +4272,7 @@ public class View implements Drawable.Callback2, KeyEvent.Callback, Accessibilit
* {@link #LAYOUT_DIRECTION_INHERIT} or
* {@link #LAYOUT_DIRECTION_LOCALE}.
* @attr ref android.R.styleable#View_layoutDirection
*
* @hide
*/
@ViewDebug.ExportedProperty(category = "layout", mapping = {
@@ -4292,6 +4293,7 @@ public class View implements Drawable.Callback2, KeyEvent.Callback, Accessibilit
* {@link #LAYOUT_DIRECTION_INHERIT} or
* {@link #LAYOUT_DIRECTION_LOCALE}.
* @attr ref android.R.styleable#View_layoutDirection
*
* @hide
*/
@RemotableViewMethod
@@ -4299,6 +4301,37 @@ public class View implements Drawable.Callback2, KeyEvent.Callback, Accessibilit
setFlags(layoutDirection, LAYOUT_DIRECTION_MASK);
}
/**
* Returns the resolved layout direction for this view.
*
* @return {@link #LAYOUT_DIRECTION_RTL} if the layout direction is RTL or returns
* {@link #LAYOUT_DIRECTION_LTR} id the layout direction is not RTL.
*
* @hide
*/
@ViewDebug.ExportedProperty(category = "layout", mapping = {
@ViewDebug.IntToString(from = LAYOUT_DIRECTION_LTR, to = "RESOLVED_DIRECTION_LTR"),
@ViewDebug.IntToString(from = LAYOUT_DIRECTION_RTL, to = "RESOLVED_DIRECTION_RTL")
})
public int getResolvedLayoutDirection() {
resolveLayoutDirection();
return ((mPrivateFlags2 & RESOLVED_LAYOUT_RTL) == RESOLVED_LAYOUT_RTL) ?
LAYOUT_DIRECTION_RTL : LAYOUT_DIRECTION_LTR;
}
/**
* <p>Indicates whether or not this view's layout is right-to-left. This is resolved from
* layout attribute and/or the inherited value from the parent.</p>
*
* @return true if the layout is right-to-left.
*
* @hide
*/
@ViewDebug.ExportedProperty(category = "layout")
public boolean isLayoutRtl() {
return (getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL);
}
/**
* If this view doesn't do any drawing on its own, set this flag to
* allow further optimizations. By default, this flag is not set on
@@ -8713,8 +8746,9 @@ public class View implements Drawable.Callback2, KeyEvent.Callback, Accessibilit
switch (getLayoutDirection()) {
case LAYOUT_DIRECTION_INHERIT:
// If this is root view, no need to look at parent's layout dir.
if (mParent != null && mParent instanceof ViewGroup &&
((ViewGroup) mParent).isLayoutRtl()) {
if (mParent != null &&
mParent instanceof ViewGroup &&
((ViewGroup) mParent).getResolvedLayoutDirection() == LAYOUT_DIRECTION_RTL) {
mPrivateFlags2 |= RESOLVED_LAYOUT_RTL;
}
break;
@@ -10236,17 +10270,6 @@ public class View implements Drawable.Callback2, KeyEvent.Callback, Accessibilit
return (mPrivateFlags & FORCE_LAYOUT) == FORCE_LAYOUT;
}
/**
* <p>Indicates whether or not this view's layout is right-to-left. This is resolved from
* layout attribute and/or the inherited value from the parent.</p>
*
* @return true if the layout is right-to-left.
*/
@ViewDebug.ExportedProperty(category = "layout")
public boolean isLayoutRtl() {
return (mPrivateFlags2 & RESOLVED_LAYOUT_RTL) == RESOLVED_LAYOUT_RTL;
}
/**
* Assign a size and position to a view and all of its
* descendants
@@ -10459,13 +10482,15 @@ public class View implements Drawable.Callback2, KeyEvent.Callback, Accessibilit
}
}
/**
* Check if a given Drawable is in RTL layout direction.
*
* @param who the recipient of the action
*/
public boolean isLayoutRtl(Drawable who) {
return (who == mBGDrawable) && isLayoutRtl();
/**
* Return the layout direction of a given Drawable.
*
* @param who the Drawable to query
*
* @hide
*/
public int getResolvedLayoutDirection(Drawable who) {
return (who == mBGDrawable) ? getResolvedLayoutDirection() : LAYOUT_DIRECTION_DEFAULT;
}
/**

7
core/java/android/widget/FrameLayout.java
View File

@@ -364,7 +364,8 @@ public class FrameLayout extends ViewGroup {
gravity = DEFAULT_CHILD_GRAVITY;
}
final int absoluteGravity = Gravity.getAbsoluteGravity(gravity, isLayoutRtl());
final int layoutDirection = getResolvedLayoutDirection();
final int absoluteGravity = Gravity.getAbsoluteGravity(gravity, layoutDirection);
final int verticalGravity = gravity & Gravity.VERTICAL_GRAVITY_MASK;
switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
@@ -435,8 +436,10 @@ public class FrameLayout extends ViewGroup {
selfBounds.set(mPaddingLeft, mPaddingTop, w - mPaddingRight, h - mPaddingBottom);
}
final int layoutDirection = getResolvedLayoutDirection();
Gravity.apply(mForegroundGravity, foreground.getIntrinsicWidth(),
foreground.getIntrinsicHeight(), selfBounds, overlayBounds, isLayoutRtl());
foreground.getIntrinsicHeight(), selfBounds, overlayBounds,
layoutDirection);
foreground.setBounds(overlayBounds);
}

3
core/java/android/widget/GridView.java
View File

@@ -1408,7 +1408,8 @@ public class GridView extends AbsListView {
int childLeft;
final int childTop = flow ? y : y - h;
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity,isLayoutRtl());
final int layoutDirection = getResolvedLayoutDirection();
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection);
switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
case Gravity.LEFT:
childLeft = childrenLeft;

8
core/java/android/widget/ImageView.java
View File

@@ -186,9 +186,13 @@ public class ImageView extends View {
}
}
/**
* @hide
*/
@Override
public boolean isLayoutRtl(Drawable dr) {
return (dr == mDrawable) ? isLayoutRtl() : super.isLayoutRtl(dr);
public int getResolvedLayoutDirection(Drawable dr) {
return (dr == mDrawable) ?
getResolvedLayoutDirection() : super.getResolvedLayoutDirection(dr);
}
@Override

6
core/java/android/widget/LinearLayout.java
View File

@@ -1446,7 +1446,8 @@ public class LinearLayout extends ViewGroup {
if (gravity < 0) {
gravity = minorGravity;
}
final int absoluteGravity = Gravity.getAbsoluteGravity(gravity, isLayoutRtl());
final int layoutDirection = getResolvedLayoutDirection();
final int absoluteGravity = Gravity.getAbsoluteGravity(gravity, layoutDirection);
switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
case Gravity.CENTER_HORIZONTAL:
childLeft = paddingLeft + ((childSpace - childWidth) / 2)
@@ -1509,7 +1510,8 @@ public class LinearLayout extends ViewGroup {
final int[] maxAscent = mMaxAscent;
final int[] maxDescent = mMaxDescent;
switch (Gravity.getAbsoluteGravity(majorGravity, isLayoutRtl())) {
final int layoutDirection = getResolvedLayoutDirection();
switch (Gravity.getAbsoluteGravity(majorGravity, layoutDirection)) {
case Gravity.RIGHT:
// mTotalLength contains the padding already
childLeft = mPaddingLeft + mRight - mLeft - mTotalLength;

7
core/java/android/widget/ProgressBar.java
View File

@@ -915,10 +915,13 @@ public class ProgressBar extends View {
}
}
/**
* @hide
*/
@Override
public boolean isLayoutRtl(Drawable who) {
public int getResolvedLayoutDirection(Drawable who) {
return (who == mProgressDrawable || who == mIndeterminateDrawable) ?
isLayoutRtl() : super.isLayoutRtl(who);
getResolvedLayoutDirection() : super.getResolvedLayoutDirection(who);
}
@Override

3
core/java/android/widget/RelativeLayout.java
View File

@@ -495,8 +495,9 @@ public class RelativeLayout extends ViewGroup {
height - mPaddingBottom);
final Rect contentBounds = mContentBounds;
final int layoutDirection = getResolvedLayoutDirection();
Gravity.apply(mGravity, right - left, bottom - top, selfBounds, contentBounds,
isLayoutRtl());
layoutDirection);
final int horizontalOffset = contentBounds.left - left;
final int verticalOffset = contentBounds.top - top;

3
core/java/android/widget/TableRow.java
View File

@@ -224,7 +224,8 @@ public class TableRow extends LinearLayout {
final int childWidth = child.getMeasuredWidth();
lp.mOffset[LayoutParams.LOCATION_NEXT] = columnWidth - childWidth;
final int absoluteGravity = Gravity.getAbsoluteGravity(gravity, isLayoutRtl());
final int layoutDirection = getResolvedLayoutDirection();
final int absoluteGravity = Gravity.getAbsoluteGravity(gravity, layoutDirection);
switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
case Gravity.LEFT:
// don't offset on X axis

24
core/java/android/widget/TextView.java
View File

@@ -4145,17 +4145,20 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
}
}
/**
* @hide
*/
@Override
public boolean isLayoutRtl(Drawable who) {
if (who == null) return false;
public int getResolvedLayoutDirection(Drawable who) {
if (who == null) return View.LAYOUT_DIRECTION_LTR;
if (mDrawables != null) {
final Drawables drawables = mDrawables;
if (who == drawables.mDrawableLeft || who == drawables.mDrawableRight ||
who == drawables.mDrawableTop || who == drawables.mDrawableBottom) {
return isLayoutRtl();
return getResolvedLayoutDirection();
}
}
return super.isLayoutRtl(who);
return super.getResolvedLayoutDirection(who);
}
@Override
@@ -4397,7 +4400,8 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
canvas.translate(compoundPaddingLeft, extendedPaddingTop + voffsetText);
}
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, isLayoutRtl());
final int layoutDirection = getResolvedLayoutDirection();
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection);
if (mEllipsize == TextUtils.TruncateAt.MARQUEE) {
if (!mSingleLine && getLineCount() == 1 && canMarquee() &&
(absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) != Gravity.LEFT) {
@@ -5545,8 +5549,10 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
hintWidth = 0;
}
final int layoutDirection = getResolvedLayoutDirection();
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection);
Layout.Alignment alignment;
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, isLayoutRtl());
switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
case Gravity.CENTER_HORIZONTAL:
alignment = Layout.Alignment.ALIGN_CENTER;
@@ -7582,7 +7588,8 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
return 0.0f;
}
} else if (getLineCount() == 1) {
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, isLayoutRtl());
final int layoutDirection = getResolvedLayoutDirection();
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection);
switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
case Gravity.LEFT:
return 0.0f;
@@ -7606,7 +7613,8 @@ public class TextView extends View implements ViewTreeObserver.OnPreDrawListener
final Marquee marquee = mMarquee;
return (marquee.mMaxFadeScroll - marquee.mScroll) / getHorizontalFadingEdgeLength();
} else if (getLineCount() == 1) {
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, isLayoutRtl());
final int layoutDirection = getResolvedLayoutDirection();
final int absoluteGravity = Gravity.getAbsoluteGravity(mGravity, layoutDirection);
switch (absoluteGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
case Gravity.LEFT:
final int textWidth = (mRight - mLeft) - getCompoundPaddingLeft() -