private void OnCanvasEvent(object obj, CanvasEventArgs args)
{
EventButton ev = new EventButton (args.Event.Handle);
switch (ev.Type)
{
case EventType.ButtonPress:
if (ev.Button == 1)
{
holding= true;
firstCell = taskArea.GetCellAt (ev.X, ev.Y);
StartDrawing (ev);
}
break;
case EventType.MotionNotify:
if (holding && stask != null)
{
curCell = taskArea.GetCellAt (ev.X, ev.Y);
stask.Y2 = ev.Y;
}
break;
case EventType.ButtonRelease:
holding = false;
double rounded = RoundDownTask (ev.Y);
stask.Y2 = rounded;
PointToTime (firstCell, curCell, stask.Task, firstX, firstY, ev.X, rounded);
break;
default:
break;
}
}
private void PointToTime(Cell firstCell, Cell curCell, Task task, double firstX, double firstY, double curX, double curY)
{
task.EndingHour = curCell.Row + 8;
task.EndingMinute = (int) ((curY - (curCell.Row * curCell.Height)) / PlannerWindow.minuteLength);
}
private double RoundMinutes(Cell cell, double y)
{
double minutes = y - (cell.Row * cell.Height);
double roundup = 0;
if ((minutes - cell.Height/2) < 0)
{
if ((minutes - cell.Height/4) < 0)
roundup = 0;
else
roundup = cell.Height/4;
} else {
if ((minutes - ((cell.Height/4) * 3)) < 0)
roundup = cell.Height/2;
else
roundup = (cell.Height/4) * 3;
}
return y - minutes + roundup;
}