Example usage for android.view Gravity HORIZONTAL_GRAVITY_MASK

Introduction

In this page you can find the example usage for android.view Gravity HORIZONTAL_GRAVITY_MASK.

Prototype

int HORIZONTAL_GRAVITY_MASK

To view the source code for android.view Gravity HORIZONTAL_GRAVITY_MASK.

Click Source Link

Document

Binary mask to get the absolute horizontal gravity of a gravity.

Usage

From source file:com.brookmanholmes.bma.wizard.ui.StepPagerStrip.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    if (pageCount == 0) {
        return;//  ww  w . j  av a2 s . c o m
    }

    float totalWidth = pageCount * (tabWidth + indicatorSpacing) - indicatorSpacing;
    float totalcx;
    float cy;
    boolean fillHorizontal = false;

    switch (gravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
    case Gravity.CENTER_HORIZONTAL:
        totalcx = (getWidth() - totalWidth) / 2;
        break;
    case Gravity.RIGHT:
        totalcx = getWidth() - getPaddingRight() - totalWidth;
        break;
    case Gravity.FILL_HORIZONTAL:
        totalcx = getPaddingLeft();
        fillHorizontal = true;
        break;
    default:
        totalcx = getPaddingLeft();
    }

    switch (gravity & Gravity.VERTICAL_GRAVITY_MASK) {
    case Gravity.CENTER_VERTICAL:
        cy = (int) (getHeight() - tabHeight) / 2;
        break;
    case Gravity.BOTTOM:
        cy = getHeight() - getPaddingBottom() - tabHeight;
        break;
    default:
        cy = getPaddingTop();
    }

    float center = cy + tabHeight / 2;

    float tabWidth = this.tabWidth;
    if (fillHorizontal) {
        tabWidth = (getWidth() - getPaddingRight() - getPaddingLeft() - (pageCount - 1) * indicatorSpacing)
                / pageCount;
    }

    for (int i = 0; i < pageCount; i++) {
        float cx = totalcx + (i * (tabWidth + indicatorSpacing));

        Paint tempPaint;

        if (i < currentPage)
            tempPaint = prevTabPaint;
        else if (i > currentPage)
            tempPaint = nextTabPaint;
        else
            tempPaint = selectedTabPaint;

        canvas.drawCircle(cx, center, i == currentPage ? radius : nonCurrentRadius, tempPaint);
    }
}

---

From source file:id.co.datascrip.dtswarehousesystem.custom.StepPagerStrip.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    if (mPageCount == 0) {
        return;/*from   www.  j ava2 s  . c  o m*/
    }

    float totalWidth = mPageCount * (mTabWidth + mTabSpacing) - mTabSpacing;
    float totalLeft;
    boolean fillHorizontal = false;

    switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
    case Gravity.CENTER_HORIZONTAL:
        totalLeft = (getWidth() - totalWidth) / 2;
        break;
    case Gravity.END:
        totalLeft = getWidth() - getPaddingRight() - totalWidth;
        break;
    case Gravity.FILL_HORIZONTAL:
        totalLeft = getPaddingLeft();
        fillHorizontal = true;
        break;
    default:
        totalLeft = getPaddingLeft();
    }

    switch (mGravity & Gravity.VERTICAL_GRAVITY_MASK) {
    case Gravity.CENTER_VERTICAL:
        mTempRectF.top = (int) (getHeight() - mTabHeight) / 2;
        break;
    case Gravity.BOTTOM:
        mTempRectF.top = getHeight() - getPaddingBottom() - mTabHeight;
        break;
    default:
        mTempRectF.top = getPaddingTop();
    }

    mTempRectF.bottom = mTempRectF.top + mTabHeight;

    float tabWidth = mTabWidth;
    if (fillHorizontal) {
        tabWidth = (getWidth() - getPaddingRight() - getPaddingLeft() - (mPageCount - 1) * mTabSpacing)
                / mPageCount;
    }

    for (int i = 0; i < mPageCount; i++) {
        mTempRectF.left = totalLeft + (i * (tabWidth + mTabSpacing));
        mTempRectF.right = mTempRectF.left + tabWidth;
        canvas.drawRect(mTempRectF,
                i < mCurrentPage ? mPrevTabPaint
                        : (i > mCurrentPage ? mNextTabPaint
                                : (i == mPageCount - 1 ? mSelectedLastTabPaint : mSelectedTabPaint)));
    }
}

---

From source file:com.example.android.supportv7.app.ToolbarDisplayOptions.java

@Override
public void onClick(View v) {
    final ActionBar bar = getSupportActionBar();
    int flags = 0;
    switch (v.getId()) {
    case R.id.toggle_home_as_up:
        flags = ActionBar.DISPLAY_HOME_AS_UP;
        break;//from   ww  w.  j a v a 2s  .  c o m
    case R.id.toggle_show_home:
        flags = ActionBar.DISPLAY_SHOW_HOME;
        break;
    case R.id.toggle_use_logo:
        flags = ActionBar.DISPLAY_USE_LOGO;
        getSupportActionBar().setLogo(R.drawable.ic_media_play);
        break;
    case R.id.toggle_show_title:
        flags = ActionBar.DISPLAY_SHOW_TITLE;
        break;
    case R.id.toggle_show_custom:
        flags = ActionBar.DISPLAY_SHOW_CUSTOM;
        break;
    case R.id.cycle_custom_gravity: {
        ActionBar.LayoutParams lp = mCustomViewLayoutParams;
        int newGravity = 0;
        switch (lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
        case Gravity.LEFT:
            newGravity = Gravity.CENTER_HORIZONTAL;
            break;
        case Gravity.CENTER_HORIZONTAL:
            newGravity = Gravity.RIGHT;
            break;
        case Gravity.RIGHT:
            newGravity = Gravity.LEFT;
            break;
        }
        lp.gravity = lp.gravity & ~Gravity.HORIZONTAL_GRAVITY_MASK | newGravity;
        bar.setCustomView(mCustomView, lp);
        return;
    }
    case R.id.toggle_visibility:
        if (bar.isShowing()) {
            bar.hide();
        } else {
            bar.show();
        }
        return;
    }

    int change = bar.getDisplayOptions() ^ flags;
    bar.setDisplayOptions(change, flags);
}

---

From source file:com.example.android.supportv7.app.ActionBarDisplayOptions.java

@Override
public void onClick(View v) {
    final ActionBar bar = getSupportActionBar();
    int flags = 0;
    switch (v.getId()) {
    case R.id.toggle_home_as_up:
        flags = ActionBar.DISPLAY_HOME_AS_UP;
        break;/*from   ww  w.ja  va  2s . c o m*/
    case R.id.toggle_show_home:
        flags = ActionBar.DISPLAY_SHOW_HOME;
        break;
    case R.id.toggle_use_logo:
        flags = ActionBar.DISPLAY_USE_LOGO;
        break;
    case R.id.toggle_show_title:
        flags = ActionBar.DISPLAY_SHOW_TITLE;
        break;
    case R.id.toggle_show_custom:
        flags = ActionBar.DISPLAY_SHOW_CUSTOM;
        break;
    case R.id.toggle_navigation:
        bar.setNavigationMode(
                bar.getNavigationMode() == ActionBar.NAVIGATION_MODE_STANDARD ? ActionBar.NAVIGATION_MODE_TABS
                        : ActionBar.NAVIGATION_MODE_STANDARD);
        return;
    case R.id.cycle_custom_gravity: {
        ActionBar.LayoutParams lp = mCustomViewLayoutParams;
        int newGravity = 0;
        switch (lp.gravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
        case Gravity.LEFT:
            newGravity = Gravity.CENTER_HORIZONTAL;
            break;
        case Gravity.CENTER_HORIZONTAL:
            newGravity = Gravity.RIGHT;
            break;
        case Gravity.RIGHT:
            newGravity = Gravity.LEFT;
            break;
        }
        lp.gravity = lp.gravity & ~Gravity.HORIZONTAL_GRAVITY_MASK | newGravity;
        bar.setCustomView(mCustomView, lp);
        return;
    }
    case R.id.toggle_visibility:
        if (bar.isShowing()) {
            bar.hide();
        } else {
            bar.show();
        }
        return;
    }

    int change = bar.getDisplayOptions() ^ flags;
    bar.setDisplayOptions(change, flags);
}

---

From source file:li.barter.widgets.FullWidthDrawerLayout.java

@Override
protected void onMeasure(final int widthMeasureSpec, final int heightMeasureSpec) {
    final int widthMode = MeasureSpec.getMode(widthMeasureSpec);
    final int heightMode = MeasureSpec.getMode(heightMeasureSpec);
    final int widthSize = MeasureSpec.getSize(widthMeasureSpec);
    final int heightSize = MeasureSpec.getSize(heightMeasureSpec);

    if ((widthMode != MeasureSpec.EXACTLY) || (heightMode != MeasureSpec.EXACTLY)) {
        throw new IllegalArgumentException("DrawerLayout must be measured with MeasureSpec.EXACTLY.");
    }//ww  w  .  j a v a2 s .c  o  m

    setMeasuredDimension(widthSize, heightSize);

    // Gravity value for each drawer we've seen. Only one of each permitted.
    final int foundDrawers = 0;
    final int childCount = getChildCount();
    for (int i = 0; i < childCount; i++) {
        final View child = getChildAt(i);

        if (child.getVisibility() == GONE) {
            continue;
        }

        final LayoutParams lp = (LayoutParams) child.getLayoutParams();

        if (isChildAContentView(child)) {
            // Content views get measured at exactly the layout's size.
            final int contentWidthSpec = MeasureSpec.makeMeasureSpec(widthSize - lp.leftMargin - lp.rightMargin,
                    MeasureSpec.EXACTLY);
            final int contentHeightSpec = MeasureSpec
                    .makeMeasureSpec(heightSize - lp.topMargin - lp.bottomMargin, MeasureSpec.EXACTLY);
            child.measure(contentWidthSpec, contentHeightSpec);
        } else if (isChildADrawerView(child)) {
            final int childGravity = getDrawerViewGravity(child) & Gravity.HORIZONTAL_GRAVITY_MASK;
            if ((foundDrawers & childGravity) != 0) {
                throw new IllegalStateException(
                        "Child drawer has absolute gravity " + gravityToString(childGravity)
                                + " but this already has a " + "drawer view along that edge");
            }
            final int drawerWidthSpec = getChildMeasureSpec(widthMeasureSpec, lp.leftMargin + lp.rightMargin,
                    lp.width);
            final int drawerHeightSpec = getChildMeasureSpec(heightMeasureSpec, lp.topMargin + lp.bottomMargin,
                    lp.height);
            child.measure(drawerWidthSpec, drawerHeightSpec);
        } else {
            throw new IllegalStateException("Child " + child + " at index " + i
                    + " does not have a valid layout_gravity - must be Gravity.LEFT, "
                    + "Gravity.RIGHT or Gravity.NO_GRAVITY");
        }
    }
}

---

From source file:com.tmall.ultraviewpager.UltraViewPagerIndicator.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    if (viewPager == null || viewPager.getAdapter() == null)
        return;//from  w w  w . j a  v a  2 s.c  o m

    final int count = ((UltraViewPagerAdapter) viewPager.getAdapter()).getRealCount();
    if (count == 0)
        return;

    int longSize;
    int shortSize;

    int longPaddingBefore;
    int longPaddingAfter;
    int shortPaddingBefore;
    int shortPaddingAfter;
    if (orientation == UltraViewPager.Orientation.HORIZONTAL) {
        longSize = viewPager.getWidth();
        shortSize = viewPager.getHeight();
        longPaddingBefore = getPaddingLeft() + marginLeft;
        longPaddingAfter = getPaddingRight() + marginRight;
        shortPaddingBefore = getPaddingTop() + marginTop;
        shortPaddingAfter = (int) paintStroke.getStrokeWidth() + getPaddingBottom() + marginBottom;
    } else {
        longSize = viewPager.getHeight();
        shortSize = viewPager.getWidth();
        longPaddingBefore = getPaddingTop() + marginTop;
        longPaddingAfter = (int) paintStroke.getStrokeWidth() + getPaddingBottom() + marginBottom;
        shortPaddingBefore = getPaddingLeft() + marginLeft;
        shortPaddingAfter = getPaddingRight() + marginRight;
    }

    final float itemWidth = getItemWidth();
    final int widthRatio = isDrawResIndicator() ? 1 : 2; //bitmap resource X1 : circle  X2
    if (indicatorPadding == 0) {
        indicatorPadding = (int) itemWidth;
    }

    float shortOffset = shortPaddingBefore;
    float longOffset = longPaddingBefore;

    final float indicatorLength = (count - 1) * (itemWidth * widthRatio + indicatorPadding);

    final int horizontalGravityMask = gravity & Gravity.HORIZONTAL_GRAVITY_MASK;
    final int verticalGravityMask = gravity & Gravity.VERTICAL_GRAVITY_MASK;
    switch (horizontalGravityMask) {
    case Gravity.CENTER_HORIZONTAL:
        longOffset = (longSize - longPaddingBefore - longPaddingAfter - indicatorLength) / 2.0f;
        break;
    case Gravity.RIGHT:
        if (orientation == UltraViewPager.Orientation.HORIZONTAL) {
            longOffset = longSize - longPaddingAfter - indicatorLength - itemWidth;
        }
        if (orientation == UltraViewPager.Orientation.VERTICAL) {
            shortOffset = shortSize - shortPaddingAfter - itemWidth;
        }
        break;
    case Gravity.LEFT:
        longOffset += itemWidth;
    default:
        break;
    }

    switch (verticalGravityMask) {
    case Gravity.CENTER_VERTICAL:
        shortOffset = (shortSize - shortPaddingAfter - shortPaddingBefore - itemWidth) / 2;
        break;
    case Gravity.BOTTOM:
        if (orientation == UltraViewPager.Orientation.HORIZONTAL) {
            shortOffset = shortSize - shortPaddingAfter - getItemHeight();
        }
        if (orientation == UltraViewPager.Orientation.VERTICAL) {
            longOffset = longSize - longPaddingAfter - indicatorLength;
        }
        break;
    case Gravity.TOP:
        shortOffset += itemWidth;
    default:
        break;
    }

    if (horizontalGravityMask == Gravity.CENTER_HORIZONTAL && verticalGravityMask == Gravity.CENTER_VERTICAL) {
        shortOffset = (shortSize - shortPaddingAfter - shortPaddingBefore - itemWidth) / 2;
    }

    float dX;
    float dY;

    float pageFillRadius = radius;
    if (paintStroke.getStrokeWidth() > 0) {
        pageFillRadius -= paintStroke.getStrokeWidth() / 2.0f; //TODO may not/2
    }

    //Draw stroked circles
    for (int iLoop = 0; iLoop < count; iLoop++) {
        float drawLong = longOffset + (iLoop * (itemWidth * widthRatio + indicatorPadding));

        if (orientation == UltraViewPager.Orientation.HORIZONTAL) {
            dX = drawLong;
            dY = shortOffset;
        } else {
            dX = shortOffset;
            dY = drawLong;
        }

        if (isDrawResIndicator()) {
            if (iLoop == viewPager.getCurrentItem())
                continue;
            canvas.drawBitmap(normalBitmap, dX, dY, paintFill);
        } else {
            // Only paint fill if not completely transparent
            if (paintFill.getAlpha() > 0) {
                paintFill.setColor(normalColor);
                canvas.drawCircle(dX, dY, pageFillRadius, paintFill);
            }

            // Only paint stroke if a stroke width was non-zero
            if (pageFillRadius != radius) {
                canvas.drawCircle(dX, dY, radius, paintStroke);
            }
        }
    }

    //Draw the filled circle according to the current scroll
    float cx = (viewPager.getCurrentItem()) * (itemWidth * widthRatio + indicatorPadding);
    if (animateIndicator)
        cx += pageOffset * itemWidth;
    if (orientation == UltraViewPager.Orientation.HORIZONTAL) {
        dX = longOffset + cx;
        dY = shortOffset;
    } else {
        dX = shortOffset;
        dY = longOffset + cx;
    }

    if (isDrawResIndicator()) {
        canvas.drawBitmap(focusBitmap, dX, dY, paintStroke);
    } else {
        paintFill.setColor(focusColor);
        canvas.drawCircle(dX, dY, radius, paintFill);
    }
}

---

From source file:com.qs.qswlw.view.Mypager.UltraViewPagerIndicator.java

@Override
protected void onDraw(Canvas canvas) {
    super.onDraw(canvas);

    if (viewPager == null || viewPager.getAdapter() == null)
        return;/*from   w  w  w  .ja v a2  s  .  c o  m*/

    final int count = ((UltraViewPagerAdapter) viewPager.getAdapter()).getRealCount();
    if (count == 0)
        return;

    int longSize;
    int shortSize;

    int longPaddingBefore;
    int longPaddingAfter;
    int shortPaddingBefore;
    int shortPaddingAfter;
    if (orientation == UltraViewPager.Orientation.HORIZONTAL) {
        longSize = viewPager.getWidth();
        shortSize = viewPager.getHeight();
        longPaddingBefore = (int) (getItemWidth() + getPaddingLeft() + marginLeft);
        longPaddingAfter = getPaddingRight() + marginRight;
        shortPaddingBefore = (int) (getItemWidth() + getPaddingTop() + marginTop);
        shortPaddingAfter = (int) paintStroke.getStrokeWidth() + getPaddingBottom() + marginBottom;
    } else {
        longSize = viewPager.getHeight();
        shortSize = viewPager.getWidth();
        longPaddingBefore = (int) (getItemWidth() + getPaddingTop() + marginTop);
        longPaddingAfter = (int) paintStroke.getStrokeWidth() + getPaddingBottom() + marginBottom;
        shortPaddingBefore = (int) (getItemWidth() + getPaddingLeft() + marginLeft);
        shortPaddingAfter = getPaddingRight() + marginRight;
    }

    final float itemWidth = getItemWidth();
    final int widthRatio = isDrawResIndicator() ? 1 : 2; //bitmap resource X1 : circle  X2
    if (indicatorPadding == 0) {
        indicatorPadding = (int) itemWidth;
    }

    float shortOffset = shortPaddingBefore;
    float longOffset = longPaddingBefore;

    final float indicatorLength = count * itemWidth * widthRatio + (count - 1) * indicatorPadding;

    final int horizontalGravityMask = gravity & Gravity.HORIZONTAL_GRAVITY_MASK;
    final int verticalGravityMask = gravity & Gravity.VERTICAL_GRAVITY_MASK;
    switch (horizontalGravityMask) {
    case Gravity.CENTER_HORIZONTAL:
        longOffset = (longSize - longPaddingBefore - longPaddingAfter - indicatorLength) / 2.0f;
        break;
    case Gravity.RIGHT:
        if (orientation == UltraViewPager.Orientation.HORIZONTAL) {
            longOffset = longSize - longPaddingAfter - indicatorLength;
        }
        if (orientation == UltraViewPager.Orientation.VERTICAL) {
            shortOffset = shortSize - shortPaddingAfter - itemWidth;
        }
        break;
    case Gravity.LEFT:
    default:
        break;
    }

    switch (verticalGravityMask) {
    case Gravity.CENTER_VERTICAL:
        shortOffset = (shortSize - shortPaddingAfter - shortPaddingBefore - itemWidth) / 2;
        break;
    case Gravity.BOTTOM:
        if (orientation == UltraViewPager.Orientation.HORIZONTAL) {
            shortOffset = shortSize - shortPaddingAfter - getItemHeight();
        }
        if (orientation == UltraViewPager.Orientation.VERTICAL) {
            longOffset = longSize - longPaddingAfter - indicatorLength;
        }
        break;
    case Gravity.TOP:
    default:
        break;
    }

    if (horizontalGravityMask == Gravity.CENTER_HORIZONTAL && verticalGravityMask == Gravity.CENTER_VERTICAL) {
        shortOffset = (shortSize - shortPaddingAfter - shortPaddingBefore - itemWidth) / 2;
    }

    float dX;
    float dY;

    float pageFillRadius = radius;
    if (paintStroke.getStrokeWidth() > 0) {
        pageFillRadius -= paintStroke.getStrokeWidth() / 2.0f; //TODO may not/2
    }

    //Draw stroked circles
    for (int iLoop = 0; iLoop < count; iLoop++) {
        float drawLong = longOffset + (iLoop * (itemWidth * widthRatio + indicatorPadding));
        if (orientation == UltraViewPager.Orientation.HORIZONTAL) {
            dX = drawLong;
            dY = shortOffset;
        } else {
            dX = shortOffset;
            dY = drawLong;
        }

        if (isDrawResIndicator()) {
            if (iLoop == viewPager.getCurrentItem())
                continue;
            canvas.drawBitmap(normalBitmap, dX, dY, paintFill);
        } else {
            // Only paint fill if not completely transparent
            if (paintFill.getAlpha() > 0) {
                paintFill.setColor(normalColor);
                canvas.drawCircle(dX, dY, pageFillRadius, paintFill);
            }

            // Only paint stroke if a stroke width was non-zero
            if (pageFillRadius != radius) {
                canvas.drawCircle(dX, dY, radius, paintStroke);
            }
        }
    }

    //Draw the filled circle according to the current scroll
    float cx = (viewPager.getCurrentItem()) * (itemWidth * widthRatio + indicatorPadding);
    if (animateIndicator)
        cx += pageOffset * itemWidth;
    if (orientation == UltraViewPager.Orientation.HORIZONTAL) {
        dX = longOffset + cx;
        dY = shortOffset;
    } else {
        dX = shortOffset;
        dY = longOffset + cx;
    }

    if (isDrawResIndicator()) {
        canvas.drawBitmap(focusBitmap, dX, dY, paintStroke);
    } else {
        paintFill.setColor(focusColor);
        canvas.drawCircle(dX, dY, radius, paintFill);
    }
}

---

From source file:com.manuelpeinado.imagelayout.ImageLayout.java

public void setGravity(int newValue) {
    if (fitter != null && gravity == newValue) {
        return;/*from   w  w w. j a  v a2  s.c o  m*/
    }
    if ((newValue & Gravity.HORIZONTAL_GRAVITY_MASK) == 0) {
        newValue |= Gravity.CENTER_HORIZONTAL;
    }
    if ((newValue & Gravity.VERTICAL_GRAVITY_MASK) == 0) {
        newValue |= Gravity.CENTER_VERTICAL;
    }
    gravity = newValue;
    rebuildFitter();
}

---

From source file:com.brookmanholmes.bma.wizard.ui.StepPagerStrip.java

private int hitTest(float x) {
    if (pageCount == 0) {
        return -1;
    }/* w w  w  .ja  va 2s.  c  o  m*/

    float totalWidth = pageCount * (tabWidth + indicatorSpacing) - indicatorSpacing;
    float totalLeft;
    boolean fillHorizontal = false;

    switch (gravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
    case Gravity.CENTER_HORIZONTAL:
        totalLeft = (getWidth() - totalWidth) / 2;
        break;
    case Gravity.RIGHT:
        totalLeft = getWidth() - getPaddingRight() - totalWidth;
        break;
    case Gravity.FILL_HORIZONTAL:
        totalLeft = getPaddingLeft();
        fillHorizontal = true;
        break;
    default:
        totalLeft = getPaddingLeft();
    }

    float tabWidth = this.tabWidth;
    if (fillHorizontal) {
        tabWidth = (getWidth() - getPaddingRight() - getPaddingLeft() - (pageCount - 1) * indicatorSpacing)
                / pageCount;
    }

    float totalRight = totalLeft + (pageCount * (tabWidth + indicatorSpacing));
    if (x >= totalLeft && x <= totalRight && totalRight > totalLeft) {
        return (int) (((x - totalLeft) / (totalRight - totalLeft)) * pageCount);
    } else {
        return -1;
    }
}

---

From source file:id.co.datascrip.dtswarehousesystem.custom.StepPagerStrip.java

private int hitTest(float x) {
    if (mPageCount == 0) {
        return -1;
    }// ww  w  . j av a  2s.c o  m

    float totalWidth = mPageCount * (mTabWidth + mTabSpacing) - mTabSpacing;
    float totalLeft;
    boolean fillHorizontal = false;

    switch (mGravity & Gravity.HORIZONTAL_GRAVITY_MASK) {
    case Gravity.CENTER_HORIZONTAL:
        totalLeft = (getWidth() - totalWidth) / 2;
        break;
    case Gravity.RIGHT:
        totalLeft = getWidth() - getPaddingRight() - totalWidth;
        break;
    case Gravity.FILL_HORIZONTAL:
        totalLeft = getPaddingLeft();
        fillHorizontal = true;
        break;
    default:
        totalLeft = getPaddingLeft();
    }

    float tabWidth = mTabWidth;
    if (fillHorizontal) {
        tabWidth = (getWidth() - getPaddingRight() - getPaddingLeft() - (mPageCount - 1) * mTabSpacing)
                / mPageCount;
    }

    float totalRight = totalLeft + (mPageCount * (tabWidth + mTabSpacing));
    if (x >= totalLeft && x <= totalRight && totalRight > totalLeft) {
        return (int) (((x - totalLeft) / (totalRight - totalLeft)) * mPageCount);
    } else {
        return -1;
    }
}

---

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