Add ActionBarSherlock 4.1.0 to master branch of actionbarsherlock project

Change-Id: I4f557ca50a210d66b6c6f37f1edc44c08f7e31c6

1 files changed, 272 insertions, 0 deletions

diff --git a/library/src/com/actionbarsherlock/internal/widget/IcsLinearLayout.java b/library/src/com/actionbarsherlock/internal/widget/IcsLinearLayout.java
new file mode 100644
index 0000000..1b4463a
--- /dev/null
+++ b/library/src/com/actionbarsherlock/internal/widget/IcsLinearLayout.java
@@ -0,0 +1,272 @@
+package com.actionbarsherlock.internal.widget;
+
+import android.content.Context;
+import android.content.res.TypedArray;
+import android.graphics.Canvas;
+import android.graphics.drawable.Drawable;
+import android.util.AttributeSet;
+import android.view.View;
+import com.actionbarsherlock.internal.nineoldandroids.widget.NineLinearLayout;
+
+/**
+ * A simple extension of a regular linear layout that supports the divider API
+ * of Android 4.0+. The dividers are added adjacent to the children by changing
+ * their layout params. If you need to rely on the margins which fall in the
+ * same orientation as the layout you should wrap the child in a simple
+ * {@link android.widget.FrameLayout} so it can receive the margin.
+ */
+public class IcsLinearLayout extends NineLinearLayout {
+    private static final int[] LinearLayout = new int[] {
+        /* 0 */ android.R.attr.divider,
+        /* 1 */ android.R.attr.showDividers,
+        /* 2 */ android.R.attr.dividerPadding,
+    };
+    private static final int LinearLayout_divider = 0;
+    private static final int LinearLayout_showDividers = 1;
+    private static final int LinearLayout_dividerPadding = 2;
+
+    /**
+     * Don't show any dividers.
+     */
+    public static final int SHOW_DIVIDER_NONE = 0;
+    /**
+     * Show a divider at the beginning of the group.
+     */
+    public static final int SHOW_DIVIDER_BEGINNING = 1;
+    /**
+     * Show dividers between each item in the group.
+     */
+    public static final int SHOW_DIVIDER_MIDDLE = 2;
+    /**
+     * Show a divider at the end of the group.
+     */
+    public static final int SHOW_DIVIDER_END = 4;
+
+
+    private Drawable mDivider;
+    private int mDividerWidth;
+    private int mDividerHeight;
+    private int mShowDividers;
+    private int mDividerPadding;
+
+
+    public IcsLinearLayout(Context context, AttributeSet attrs) {
+        super(context, attrs);
+
+        TypedArray a = context.obtainStyledAttributes(attrs, /*com.android.internal.R.styleable.*/LinearLayout);
+
+        setDividerDrawable(a.getDrawable(/*com.android.internal.R.styleable.*/LinearLayout_divider));
+        mShowDividers = a.getInt(/*com.android.internal.R.styleable.*/LinearLayout_showDividers, SHOW_DIVIDER_NONE);
+        mDividerPadding = a.getDimensionPixelSize(/*com.android.internal.R.styleable.*/LinearLayout_dividerPadding, 0);
+
+        a.recycle();
+    }
+
+    /**
+     * Set how dividers should be shown between items in this layout
+     *
+     * @param showDividers One or more of {@link #SHOW_DIVIDER_BEGINNING},
+     *                     {@link #SHOW_DIVIDER_MIDDLE}, or {@link #SHOW_DIVIDER_END},
+     *                     or {@link #SHOW_DIVIDER_NONE} to show no dividers.
+     */
+    public void setShowDividers(int showDividers) {
+        if (showDividers != mShowDividers) {
+            requestLayout();
+            invalidate(); //XXX This is required if you are toggling a divider off
+        }
+        mShowDividers = showDividers;
+    }
+
+    /**
+     * @return A flag set indicating how dividers should be shown around items.
+     * @see #setShowDividers(int)
+     */
+    public int getShowDividers() {
+        return mShowDividers;
+    }
+
+    /**
+     * Set a drawable to be used as a divider between items.
+     * @param divider Drawable that will divide each item.
+     * @see #setShowDividers(int)
+     */
+    public void setDividerDrawable(Drawable divider) {
+        if (divider == mDivider) {
+            return;
+        }
+        mDivider = divider;
+        if (divider != null) {
+            mDividerWidth = divider.getIntrinsicWidth();
+            mDividerHeight = divider.getIntrinsicHeight();
+        } else {
+            mDividerWidth = 0;
+            mDividerHeight = 0;
+        }
+        setWillNotDraw(divider == null);
+        requestLayout();
+    }
+
+    /**
+     * Set padding displayed on both ends of dividers.
+     *
+     * @param padding Padding value in pixels that will be applied to each end
+     *
+     * @see #setShowDividers(int)
+     * @see #setDividerDrawable(Drawable)
+     * @see #getDividerPadding()
+     */
+    public void setDividerPadding(int padding) {
+        mDividerPadding = padding;
+    }
+
+    /**
+     * Get the padding size used to inset dividers in pixels
+     *
+     * @see #setShowDividers(int)
+     * @see #setDividerDrawable(Drawable)
+     * @see #setDividerPadding(int)
+     */
+    public int getDividerPadding() {
+        return mDividerPadding;
+    }
+
+    /**
+     * Get the width of the current divider drawable.
+     *
+     * @hide Used internally by framework.
+     */
+    public int getDividerWidth() {
+        return mDividerWidth;
+    }
+
+    @Override
+    protected void measureChildWithMargins(View child, int parentWidthMeasureSpec, int widthUsed, int parentHeightMeasureSpec, int heightUsed) {
+        final int index = indexOfChild(child);
+        final int orientation = getOrientation();
+        final LayoutParams params = (LayoutParams) child.getLayoutParams();
+        if (hasDividerBeforeChildAt(index)) {
+            if (orientation == VERTICAL) {
+                //Account for the divider by pushing everything up
+                params.topMargin = mDividerHeight;
+            } else {
+                //Account for the divider by pushing everything left
+                params.leftMargin = mDividerWidth;
+            }
+        }
+
+        final int count = getChildCount();
+        if (index == count - 1) {
+            if (hasDividerBeforeChildAt(count)) {
+                if (orientation == VERTICAL) {
+                    params.bottomMargin = mDividerHeight;
+                } else {
+                    params.rightMargin = mDividerWidth;
+                }
+            }
+        }
+        super.measureChildWithMargins(child, parentWidthMeasureSpec, widthUsed, parentHeightMeasureSpec, heightUsed);
+    }
+
+    @Override
+    protected void onDraw(Canvas canvas) {
+        if (mDivider != null) {
+            if (getOrientation() == VERTICAL) {
+                drawDividersVertical(canvas);
+            } else {
+                drawDividersHorizontal(canvas);
+            }
+        }
+        super.onDraw(canvas);
+    }
+
+    void drawDividersVertical(Canvas canvas) {
+        final int count = getChildCount();
+        for (int i = 0; i < count; i++) {
+            final View child = getChildAt(i);
+
+            if (child != null && child.getVisibility() != GONE) {
+                if (hasDividerBeforeChildAt(i)) {
+                    final LayoutParams lp = (LayoutParams) child.getLayoutParams();
+                    final int top = child.getTop() - lp.topMargin/* - mDividerHeight*/;
+                    drawHorizontalDivider(canvas, top);
+                }
+            }
+        }
+
+        if (hasDividerBeforeChildAt(count)) {
+            final View child = getChildAt(count - 1);
+            int bottom = 0;
+            if (child == null) {
+                bottom = getHeight() - getPaddingBottom() - mDividerHeight;
+            } else {
+                final LayoutParams lp = (LayoutParams) child.getLayoutParams();
+                bottom = child.getBottom()/* + lp.bottomMargin*/;
+            }
+            drawHorizontalDivider(canvas, bottom);
+        }
+    }
+
+    void drawDividersHorizontal(Canvas canvas) {
+        final int count = getChildCount();
+        for (int i = 0; i < count; i++) {
+            final View child = getChildAt(i);
+
+            if (child != null && child.getVisibility() != GONE) {
+                if (hasDividerBeforeChildAt(i)) {
+                    final LayoutParams lp = (LayoutParams) child.getLayoutParams();
+                    final int left = child.getLeft() - lp.leftMargin/* - mDividerWidth*/;
+                    drawVerticalDivider(canvas, left);
+                }
+            }
+        }
+
+        if (hasDividerBeforeChildAt(count)) {
+            final View child = getChildAt(count - 1);
+            int right = 0;
+            if (child == null) {
+                right = getWidth() - getPaddingRight() - mDividerWidth;
+            } else {
+                final LayoutParams lp = (LayoutParams) child.getLayoutParams();
+                right = child.getRight()/* + lp.rightMargin*/;
+            }
+            drawVerticalDivider(canvas, right);
+        }
+    }
+
+    void drawHorizontalDivider(Canvas canvas, int top) {
+        mDivider.setBounds(getPaddingLeft() + mDividerPadding, top,
+                getWidth() - getPaddingRight() - mDividerPadding, top + mDividerHeight);
+        mDivider.draw(canvas);
+    }
+
+    void drawVerticalDivider(Canvas canvas, int left) {
+        mDivider.setBounds(left, getPaddingTop() + mDividerPadding,
+                left + mDividerWidth, getHeight() - getPaddingBottom() - mDividerPadding);
+        mDivider.draw(canvas);
+    }
+
+    /**
+     * Determines where to position dividers between children.
+     *
+     * @param childIndex Index of child to check for preceding divider
+     * @return true if there should be a divider before the child at childIndex
+     * @hide Pending API consideration. Currently only used internally by the system.
+     */
+    protected boolean hasDividerBeforeChildAt(int childIndex) {
+        if (childIndex == 0) {
+            return (mShowDividers & SHOW_DIVIDER_BEGINNING) != 0;
+        } else if (childIndex == getChildCount()) {
+            return (mShowDividers & SHOW_DIVIDER_END) != 0;
+        } else if ((mShowDividers & SHOW_DIVIDER_MIDDLE) != 0) {
+            boolean hasVisibleViewBefore = false;
+            for (int i = childIndex - 1; i >= 0; i--) {
+                if (getChildAt(i).getVisibility() != GONE) {
+                    hasVisibleViewBefore = true;
+                    break;
+                }
+            }
+            return hasVisibleViewBefore;
+        }
+        return false;
+    }
+}