protected void control_MouseLeftButtonDown(object sender, MouseButtonEventArgs e)
{
if (IsMapLoaded)
{
//Get keyboard focus
Keyboard.Focus(this);
//Save starting point, used later when determining how much to scroll
startPosition = e.GetPosition(this);
startOffset = new Point(translateTransform.X, translateTransform.Y);
var shiftPressed = Keyboard.IsKeyDown(Key.LeftShift) || Keyboard.IsKeyDown(Key.RightShift);
if (!shiftPressed)
{
CaptureMouse();
Cursor = Cursors.ScrollAll;
}
else
{
lastDistance = new DistanceOverlay(FromLocalToMap(startPosition), FromLocalToMap(startPosition), "0m")
{
Tag = "distance"
};
AddOverlay(lastDistance);
}
}
}
protected void control_MouseLeftButtonUp(object sender, MouseButtonEventArgs e)
{
if (IsMouseCaptured)
{
//Reset the cursor and release the mouse pointer
Cursor = Cursors.Arrow;
ReleaseMouseCapture();
}
else
{
var shiftPressed = Keyboard.IsKeyDown(Key.LeftShift) || Keyboard.IsKeyDown(Key.RightShift);
if (shiftPressed)
{
lastDistance = null;
}
}
}
protected void control_MouseMove(object sender, MouseEventArgs e)
{
if (IsMapLoaded)
{
var position = e.GetPosition(this);
if (IsMouseCaptured)
{
//Move the content
var displacement = new Vector(position.X - startPosition.X + startOffset.X, position.Y - startPosition.Y + startOffset.Y);
LocalPanTo(displacement);
}
else
{
MousePointerPosition = FromLocalToMap(position);
var shiftPressed = Keyboard.IsKeyDown(Key.LeftShift) || Keyboard.IsKeyDown(Key.RightShift);
if (shiftPressed && lastDistance != null)
{
var a = FromLocalToMap(startPosition);
var b = FromLocalToMap(e.GetPosition(this));
var distance = Math.Sqrt((a.X - b.X) * (a.X - b.X) + (a.Y - b.Y) * (a.Y - b.Y));
RemoveOverlay(lastDistance);
lastDistance = new DistanceOverlay(a, b, string.Format("{0:0}m", distance))
{
Tag = "distance"
};
AddOverlay(lastDistance);
}
}
}
else
{
MousePointerPosition = ORIGIN;
}
}