示例#1
0
        private void mainGrid_PreviewMouseUp(object sender, MouseButtonEventArgs e)
        {
            // is this the end of a drag operation?
            if (this.dragTumbler != null)
            {
                double offset = -Canvas.GetTop(this.dragTumbler);

                Point mousePt = Mouse.GetPosition(this.mainGrid);
                if (mousePt.Equals(this.dragPt))
                {
                    // user clicked on tumbler without dragging, select the clicked-on value
                    offset += mousePt.Y - (this.mainGrid.ActualHeight / 2);
                }
                // find the Canvas offset for the value closest to where the drag ended
                TumblerData td = this.dragTumbler.Tag as TumblerData;

                double itemHeight = this.dragTumbler.ActualHeight / (td.Values.Count);
                double newVal     = offset / itemHeight + 2;
                int    iVal       = (int)Math.Round(newVal);

                // update index, limit to valid values.  The update will cause NotifyPropertyChanged which
                // will animate the tumbler into the appropriate position for the selected value
                td.SelectedValueIndex = Math.Min(Math.Max(0, iVal), td.Values.Count - 1);

                this.dragTumbler = null;
            }

            if (this.mainGrid.IsMouseCaptured && this.AlwaysOpen)
            {
                this.mainGrid.ReleaseMouseCapture();
            }
        }
示例#2
0
        private void configureDaysOfMonth(TumblerData years, TumblerData months, TumblerData days)
        {
            int currentDay   = int.Parse(days.Values[days.SelectedValueIndex].ToString());
            var currentMonth = int.Parse(months.Values[months.SelectedValueIndex].ToString());
            var currentYear  = int.Parse(years.Values[years.SelectedValueIndex].ToString());

            int daysInMonths = DateTime.DaysInMonth(currentYear, currentMonth);

            // El mes actual tiene menos dias que el seleccionado entonces se quitan
            while (days.Values.Count > daysInMonths)
            {
                days.Values.RemoveAt(days.Values.Count - 1);
            }

            // El mes actual tiene menos dias que el seleccion entonces se agregan.
            while (days.Values.Count < daysInMonths)
            {
                days.Values.Add(String.Format("{0:d2}", days.Values.Count + 1));
            }

            if (currentDay > daysInMonths)
            {
                days.SelectedValueIndex = 0;// DateTime.DaysInMonth(currentYear, currentMonth) - 1;
            }
        }
示例#3
0
        public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            TumblerData td           = values[0] as TumblerData;
            bool        isOpen       = (bool)values[1];
            int         currentIndex = (int)values[2];

            return(isOpen || (td != null && currentIndex == td.SelectedValueIndex) ? Visibility.Visible : Visibility.Hidden);
        }
示例#4
0
 /// <summary>
 /// Mouse wheel handler for tumblers.  This is not a fired event because we need to mouse capture on the main grid
 /// so we can know when to close the control.  Instead this event gets called via the MouseWheel event on the main grid.
 /// </summary>
 /// <param name="tumbler">The tumbler (grid) that should receive the mouse wheel event</param>
 /// <param name="e">the MouseWheelEventArgs forwarded from the main grid MouseWheel event</param>
 private void Tumbler_PreviewMouseWheel(Grid tumbler, MouseWheelEventArgs e)
 {
     if (tumbler != null)
     {
         TumblerData td = tumbler.Tag as TumblerData;
         // Each click in the mouse will increment or decrement the tumbler value by one
         int newIdx = td.SelectedValueIndex + (e.Delta > 0 ? 1 : -1);
         if (newIdx >= 0 && newIdx < td.Values.Count)
         {
             // Set the new index which will cause NotifyPropertyChanged to fire, which in turn will cause
             // the binding/converter to re-evaluate, which will result in the tumbler animating to the correct
             // canvas offset.
             td.SelectedValueIndex = newIdx;
         }
     }
 }
示例#5
0
        public object Convert(object[] values, Type targetType, object parameter, System.Globalization.CultureInfo culture)
        {
            // TumblerDataToOffsetConverter is just a shell for getting SelectedValueChanged event and using it to adjust the items grid
            // canvas offset.  Reason we don't just bind the Canvas.Top property directly is because that binding will
            // get lost when we manually set Canvas.Top via drag support
            Grid        tumbler = values[0] as Grid;
            TumblerData td      = tumbler.Tag as TumblerData;

            if (td != null)
            {
                double itemHeight = tumbler.ActualHeight / (td.Values.Count);
                double offset     = td.SelectedValueIndex > 0 ? -(td.SelectedValueIndex - 2) * itemHeight : itemHeight * 2;

                // animate from current position to value offset
                DoubleAnimation da = new DoubleAnimation();
                da.From     = Canvas.GetTop(tumbler);
                da.To       = offset;
                da.Duration = new Duration(TimeSpan.FromMilliseconds(100));
                tumbler.BeginAnimation(Canvas.TopProperty, da);
            }
            return(values[2]);
        }
        private void configureDaysOfMonth(TumblerData years, TumblerData months, TumblerData days)
        {
            int currentDay = int.Parse(days.Values[days.SelectedValueIndex].ToString());
            var currentMonth = int.Parse(months.Values[months.SelectedValueIndex].ToString());
            var currentYear = int.Parse(years.Values[years.SelectedValueIndex].ToString());

            int daysInMonths = DateTime.DaysInMonth(currentYear, currentMonth);

            // El mes actual tiene menos dias que el seleccionado entonces se quitan
            while (days.Values.Count > daysInMonths)
            {
                days.Values.RemoveAt(days.Values.Count - 1);
            }

            // El mes actual tiene menos dias que el seleccion entonces se agregan.
            while (days.Values.Count < daysInMonths)
            {
                days.Values.Add(String.Format("{0:d2}", days.Values.Count + 1));
            }

            if (currentDay > daysInMonths)
            {
                days.SelectedValueIndex = 0;// DateTime.DaysInMonth(currentYear, currentMonth) - 1;                
            }
        }