private void insertButtonIntoStack(List <TimelineViewButton> buttonStack, TimelineViewButton insert)
{
//Sort the stack in order from top to bottom.
buttonStack.Sort(topSortButtons);
//Search the stack looking for a space in the buttons.
int insertYPos = yPosition;
int lastButtonYPos = -1;
foreach (TimelineViewButton button in buttonStack)
{
if (lastButtonYPos != button.Top) //Make sure the next button is actually lower, its possible that it is not
{
lastButtonYPos = button.Top;
if (button.Top == insertYPos)
{
insertYPos = button.Bottom + STACKED_BUTTON_SPACE;
}
else
{
break;
}
}
}
insert._moveTop(insertYPos);
}
private void computeButtonPosition(TimelineViewButton movedButton)
{
//Find the buttons that currently intersect the moved button
List <TimelineViewButton> currentStackedButtons = new List <TimelineViewButton>();
findIntersectingButtons(currentStackedButtons, movedButton.Left, movedButton.Right);
currentStackedButtons.Remove(movedButton);
//If there are no buttons currently intersecting the new position, put the button at the top.
if (currentStackedButtons.Count == 0)
{
movedButton._moveTop(yPosition);
}
//Put the button at the first blank space that can be found
else
{
insertButtonIntoStack(currentStackedButtons, movedButton);
}
}