Convert Kotlin Class to Java Code - WeekView Methods

///////////////////////////////////////////////////////////////// // // Public methods. // ///////////////////////////////////////////////////////////////// public Calendar getLastVisibleDay() { if (firstVisibleDay == null) return null; Calendar result = (Calendar) firstVisibleDay.clone(); result.add(Calendar.DATE, realNumberOfVisibleDays - 1); return result; }

/**

• Show today on the week view. */ public void goToToday() { Calendar today = Calendar.getInstance(); goToDate(today); }

/**

• Show a specific day on the week view.

• @param date The date to show. */ public void goToDate(Calendar date) { mScroller.forceFinished(true); mCurrentFlingDirection = Direction.NONE; mCurrentScrollDirection = mCurrentFlingDirection;

  date.set(Calendar.HOUR_OF_DAY, 0); date.set(Calendar.MINUTE, 0); date.set(Calendar.SECOND, 0); date.set(Calendar.MILLISECOND, 0);

  if (mAreDimensionsInvalid) { mScrollToDay = date; return; }

  mRefreshEvents = true;

  mCurrentOrigin.x = -daysBetween(mHomeDate, date) * (widthPerDay + columnGap); mStartOriginForScroll = mCurrentOrigin.x; invalidate(); }

/**

• Refreshes the view and loads the events again. */ public void notifyDataSetChanged() { mRefreshEvents = true; invalidate(); }

/**

• Vertically scroll to a specific hour in the week view.

• @param hour The hour to scroll to in 24-hour format. Supported values are 0-24. */ public void goToHour(double hour) { if (mAreDimensionsInvalid) { mScrollToHour = hour; return; }

  int verticalOffset = 0; if (hour > mMaxTime) verticalOffset = hourHeight * (mMaxTime - mMinTime); else if (hour > mMinTime) verticalOffset = (int) (hourHeight * hour);

  if (verticalOffset > (hourHeight * (mMaxTime - mMinTime) - height) + headerHeight + weekDaysHeaderRowTotalPadding + spaceBelowAllDayEvents) verticalOffset = (int) ((hourHeight * (mMaxTime - mMinTime) - height) + headerHeight + weekDaysHeaderRowTotalPadding + spaceBelowAllDayEvents);

  mCurrentOrigin.y = -verticalOffset; invalidate(); }

/**

• Determine whether a given calendar day falls within the scroll limits set for this view.
• @param day the day to check
• @return True if there are no limit or the date is within the limits.
• @see .setMinDate
• @see .setMaxDate */ public boolean dateIsValid(Calendar day) { if (minDate != null && day.before(minDate)) return false; return !(maxDate != null && day.after(maxDate)); }

//region interfaces

public interface DropListener { /** * Triggered when view dropped * * @param view: dropped view. * @param date: object set with the date and time of the dropped coordinates on the view. */ void onDrop(View view, Calendar date); }

public interface EventClickListener { /** * Triggered when clicked on one existing event * * @param event: event clicked. * @param eventRect: view containing the clicked event. */ void onEventClick(WeekViewEvent event, RectF eventRect); }

public interface EventLongPressListener { void onEventLongPress(WeekViewEvent event, RectF eventRect); }

public interface EmptyViewClickListener { /** * Triggered when the users clicks on a empty space of the calendar. * * @param date: [Calendar] object set with the date and time of the clicked position on the view. */ void onEmptyViewClicked(Calendar date);

}

public interface EmptyViewLongPressListener { /** * Similar to [com.alamkanak.weekview.WeekView.EmptyViewClickListener] but with long press. * * @param time: [Calendar] object set with the date and time of the long pressed position on the view. */ void onEmptyViewLongPress(Calendar time); }

public interface ScrollListener { /** * Called when the first visible day has changed. * * * (this will also be called during the first draw of the weekview) * * @param newFirstVisibleDay The new first visible day * @param oldFirstVisibleDay The old first visible day (is null on the first call). */ void onFirstVisibleDayChanged(Calendar newFirstVisibleDay, Calendar oldFirstVisibleDay); }

public interface AddEventClickListener { /** * Triggered when the users clicks to create a new event. * * @param startTime The startTime of a new event * @param endTime The endTime of a new event */ void onAddEventClicked(Calendar startTime, Calendar endTime); }

/**

• A simple GestureListener that holds the focused hour while scaling. */ private class WeekViewGestureListener implements ScaleGestureDetector.OnScaleGestureListener { private float mFocusedPointY;

  @Override public void onScaleEnd(ScaleGestureDetector detector) { mIsZooming = false; }

  @Override public boolean onScaleBegin(ScaleGestureDetector detector) { mIsZooming = true; goToNearestOrigin();

   // Calculate focused point for scale action
   mFocusedPointY = isZoomFocusPointEnabled ? (height - headerHeight - weekDaysHeaderRowTotalPadding - spaceBelowAllDayEvents) * zoomFocusPoint : detector.getFocusY();
  
   return true;
  

  }

  @Override public boolean onScale(ScaleGestureDetector detector) { float scale = detector.getScaleFactor();

   mNewHourHeight = Math.round(hourHeight * scale);
  
   // Calculating difference
   float diffY = mFocusedPointY - mCurrentOrigin.y;
   // Scaling difference
   diffY = diffY * scale - diffY;
   // Updating week view origin
   mCurrentOrigin.y -= diffY;
  
   invalidate();
   return true;
  

  }

}

private class DragListener implements View.OnDragListener { @Override public boolean onDrag(View v, DragEvent e) { switch (e.getAction()) { case DragEvent.ACTION_DROP: float headerTitleAndSubtitleTextHeight = headerWeekDayTitleTextHeight + (isSubtitleHeaderEnabled ? headerWeekDaySubtitleTextHeight + spaceBetweenHeaderWeekDayTitleAndSubtitle : 0.0f); if (e.getX() > mHeaderColumnWidth && e.getY() > headerTitleAndSubtitleTextHeight + weekDaysHeaderRowTotalPadding + spaceBelowAllDayEvents) { Calendar selectedTime = getTimeFromPoint(e.getX(), e.getY()); if (selectedTime != null) { dropListener.onDrop(v, selectedTime); } } break; } return true; } }

//endregion interfaces

public static final int LENGTH_SHORT = 1; public static final int LENGTH_LONG = 2;