//---------------------------------------------------------------------------
private void OnMouseMove(object sender, MouseEventArgs e)
{
if (m_IsDrag)
{
m_Drag = new Point(e.GetPosition(Root).X - m_Click.X, e.GetPosition(Root).Y - m_Click.Y);
switch (m_Mode)
{
case EResizeMode.Left:
m_Size = new SelectionPoint(Math.Min(MapWidth - MapMinWidth, (int)m_Drag.X / PxTileWidth), (int)m_Drag.Y / PxTileHeight);
UpdateLeftBorderMargin(m_Size.X);
break;
case EResizeMode.Right:
m_Size = new SelectionPoint(Math.Max(MapMinWidth - MapWidth, (int)m_Drag.X / PxTileWidth), (int)m_Drag.Y / PxTileHeight);
UpdateRightBorderMargin(m_Size.X);
break;
case EResizeMode.Top:
m_Size = new SelectionPoint((int)m_Drag.X / PxTileWidth, Math.Min(MapHeight - MapMinHeight, (int)m_Drag.Y / PxTileHeight));
UpdateTopBorderMargin(m_Size.Y);
break;
case EResizeMode.Bottom:
m_Size = new SelectionPoint((int)m_Drag.X / PxTileWidth, Math.Max(MapMinHeight - MapHeight, (int)m_Drag.Y / PxTileHeight));
UpdateBottomBorderMargin(m_Size.Y);
break;
}
}
}
//---------------------------------------------------------------------------
private void FloodFill(ELayerMode mode, SelectionPoint center, SelectionPoint fill)
{
if (IsMatch(mode, center.X, center.Y, fill.X, fill.Y))
{
return;
}
Layer layer = m_Map[mode, center.X, center.Y];
if (layer != null)
{
SelectionPoint expected = new SelectionPoint(layer.TargetX, layer.TargetY);
Queue <SelectionPoint> q = new Queue <SelectionPoint>();
q.Enqueue(center);
while (q.Count > 0)
{
SelectionPoint n = q.Dequeue();
if (!IsMatch(mode, n.X, n.Y, expected.X, expected.Y))
{
continue;
}
SelectionPoint w = n, e = new SelectionPoint(n.X + 1, n.Y);
while ((w.X >= 0) && IsMatch(mode, w.X, w.Y, expected.X, expected.Y))
{
if (m_Map.SetTile(mode, w.X, w.Y, fill.X, fill.Y))
{
ContainsChanges = true;
m_Control?.SetTile(mode, w.X, w.Y, fill.X, fill.Y);
}
if ((w.Y > 0) && IsMatch(mode, w.X, w.Y - 1, expected.X, expected.Y))
{
q.Enqueue(new SelectionPoint(w.X, w.Y - 1));
}
if ((w.Y < m_Map.Height - 1) && IsMatch(mode, w.X, w.Y + 1, expected.X, expected.Y))
{
q.Enqueue(new SelectionPoint(w.X, w.Y + 1));
}
w.X--;
}
while ((e.X <= m_Map.Width - 1) && IsMatch(mode, e.X, e.Y, expected.X, expected.Y))
{
if (m_Map.SetTile(mode, e.X, e.Y, fill.X, fill.Y))
{
ContainsChanges = true;
m_Control?.SetTile(mode, e.X, e.Y, fill.X, fill.Y);
}
if ((e.Y > 0) && IsMatch(mode, e.X, e.Y - 1, expected.X, expected.Y))
{
q.Enqueue(new SelectionPoint(e.X, e.Y - 1));
}
if ((e.Y < m_Map.Height - 1) && IsMatch(mode, e.X, e.Y + 1, expected.X, expected.Y))
{
q.Enqueue(new SelectionPoint(e.X, e.Y + 1));
}
e.X++;
}
}
}
}
//---------------------------------------------------------------------------
public ResizeControl()
{
InitializeComponent();
DataContext = this;
m_Size = new SelectionPoint();
m_Mode = EResizeMode.None;
m_ModeMapping = new Dictionary <FrameworkElement, EResizeMode>()
{
{ LeftBorder, EResizeMode.Left },
{ RightBorder, EResizeMode.Right },
{ TopBorder, EResizeMode.Top },
{ BottomBorder, EResizeMode.Bottom }
};
UpdateLeftBorderMargin(0);
UpdateRightBorderMargin(0);
UpdateTopBorderMargin(0);
UpdateBottomBorderMargin(0);
}