protected override void ClearVirtualPosition()
{
if (prev_virtual_position != Rectangle_.Empty && form.Parent != null)
{
XplatUI.DrawReversibleRectangle(form.Parent.Handle,
prev_virtual_position, 2);
}
prev_virtual_position = Rectangle_.Empty;
}
protected override void DrawVirtualPosition(Rectangle_ virtual_position)
{
ClearVirtualPosition();
if (form.Parent != null)
{
XplatUI.DrawReversibleRectangle(form.Parent.Handle, virtual_position, 2);
}
prev_virtual_position = virtual_position;
}
private void SplitterMove(Point location)
{
int currentMove = orientation == Orientation.Vertical ? location.X : location.Y;
int delta = currentMove - splitter_prev_move;
Rectangle prev_location = splitter_rectangle_moving;
bool moved = false;
if (orientation == Orientation.Vertical)
{
int min = panel1_min_size;
int max = panel2.Location.X + (panel2.Width - this.panel2_min_size) - splitter_rectangle_moving.Width;
if (splitter_rectangle_moving.X + delta > min && splitter_rectangle_moving.X + delta < max)
{
splitter_rectangle_moving.X += delta;
moved = true;
}
else
{
// Ensure that the splitter is set to minimum or maximum position,
// even if the mouse "skips".
//
if (splitter_rectangle_moving.X + delta <= min && splitter_rectangle_moving.X != min)
{
splitter_rectangle_moving.X = min;
moved = true;
}
else if (splitter_rectangle_moving.X + delta >= max && splitter_rectangle_moving.X != max)
{
splitter_rectangle_moving.X = max;
moved = true;
}
}
}
else if (orientation == Orientation.Horizontal)
{
int min = panel1_min_size;
int max = panel2.Location.Y + (panel2.Height - this.panel2_min_size) - splitter_rectangle_moving.Height;
if (splitter_rectangle_moving.Y + delta > min && splitter_rectangle_moving.Y + delta < max)
{
splitter_rectangle_moving.Y += delta;
moved = true;
}
else
{
// Ensure that the splitter is set to minimum or maximum position,
// even if the mouse "skips".
//
if (splitter_rectangle_moving.Y + delta <= min && splitter_rectangle_moving.Y != min)
{
splitter_rectangle_moving.Y = min;
moved = true;
}
else if (splitter_rectangle_moving.Y + delta >= max && splitter_rectangle_moving.Y != max)
{
splitter_rectangle_moving.Y = max;
moved = true;
}
}
}
if (moved)
{
splitter_prev_move = currentMove;
OnSplitterMoving(new SplitterCancelEventArgs(location.X, location.Y,
splitter_rectangle.X, splitter_rectangle.Y));
XplatUI.DrawReversibleRectangle(this.Handle, prev_location, 1);
XplatUI.DrawReversibleRectangle(this.Handle, splitter_rectangle_moving, 1);
}
}
private void SplitterMove(Point location)
{
int currentMove = horizontal ? location.Y : location.X;
int delta = currentMove - splitter_prev_move;
Rectangle prev_location = splitter_rectangle_moving;
bool moved = false;
int min = this.MinSize + moving_offset;
int max = max_size + moving_offset;
if (horizontal)
{
if (splitter_rectangle_moving.Y + delta > min && splitter_rectangle_moving.Y + delta < max)
{
splitter_rectangle_moving.Y += delta;
moved = true;
}
else
{
// Ensure that the splitter is set to minimum or maximum position,
// even if the mouse "skips".
//
if (splitter_rectangle_moving.Y + delta <= min && splitter_rectangle_moving.Y != min)
{
splitter_rectangle_moving.Y = min;
moved = true;
}
else if (splitter_rectangle_moving.Y + delta >= max && splitter_rectangle_moving.Y != max)
{
splitter_rectangle_moving.Y = max;
moved = true;
}
}
}
else
{
if (splitter_rectangle_moving.X + delta > min && splitter_rectangle_moving.X + delta < max)
{
splitter_rectangle_moving.X += delta;
moved = true;
}
else
{
// Ensure that the splitter is set to minimum or maximum position,
// even if the mouse "skips".
//
if (splitter_rectangle_moving.X + delta <= min && splitter_rectangle_moving.X != min)
{
splitter_rectangle_moving.X = min;
moved = true;
}
else if (splitter_rectangle_moving.X + delta >= max && splitter_rectangle_moving.X != max)
{
splitter_rectangle_moving.X = max;
moved = true;
}
}
}
if (moved)
{
splitter_prev_move = currentMove;
OnSplitterMoving(new SplitterEventArgs(location.X, location.Y,
splitter_rectangle_moving.X,
splitter_rectangle_moving.Y));
XplatUI.DrawReversibleRectangle(this.Parent.Handle, prev_location, 1);
XplatUI.DrawReversibleRectangle(this.Parent.Handle, splitter_rectangle_moving, 1);
}
}