/// <summary>
/// Event raised when the user presses down the left mouse-button.
/// </summary>
private void Control_MouseDown(object sender, MouseButtonEventArgs e)
{
//If we already are doing an operation, don't start another
if (currentMouseOperation != MouseOperation.None)
{
return;
}
bool doMouseMovePrep = false;
if (e.ChangedButton == MouseButton.Middle)
{
prePanTimerangeStart = TimeRangeStart;
prePanTimerangeEnd = TimeRangeEnd;
if (Keyboard.IsKeyDown(Key.LeftCtrl))
{
//System.Diagnostics.Debug.WriteLine("Resize");
currentMouseOperation = MouseOperation.Resize;
}
else
{
currentMouseOperation = MouseOperation.Pan;
//System.Diagnostics.Debug.WriteLine("Pan");
}
doMouseMovePrep = true;
}
else if (e.ChangedButton == MouseButton.Left)
{
//
// Clear selection immediately when starting drag selection.
//
listBox.SelectedItems.Clear();
isLeftMouseButtonDownOnCanvas = true;
origMouseDownPoint = e.GetPosition(GridContainer);
currentMouseOperation = MouseOperation.Select;
doMouseMovePrep = true;
}
if (doMouseMovePrep)
{
origMouseDownPoint = e.GetPosition(GridContainer);
GridContainer.CaptureMouse();
listBox.Focus();
Keyboard.Focus(listBox);
e.Handled = true;
}
}
