private void OnMouseIsDownOverview(int x, int y, int width, int height)
{
Size2 overview = GraphUtil.CalcOverviewSize(width, height, main.TotalWidth(), main.TotalHeight());
Rectangle2 win = GraphUtil.CalcWin(overview, main.TotalSize, main.VisibleWin, main.ZoomFactor, main.ZoomFactor);
if (win.Contains(x, y))
{
navigatorData.Start(x, y, main.VisibleX, main.VisibleY);
}
else
{
float x1 = x - win.Width / 2;
float y1 = y - win.Height / 2;
int newX = (int)Math.Round(x1 * main.TotalWidth() / overview.Width);
int newY = (int)Math.Round(y1 * main.TotalHeight() / overview.Height);
newX = (int)Math.Min(Math.Max(newX, 0), main.TotalWidth() - main.VisibleWidth / main.ZoomFactor);
main.VisibleX = newX;
newY = (int)Math.Min(Math.Max(newY, 0), main.TotalHeight() - main.VisibleHeight / main.ZoomFactor);
main.VisibleY = newY;
invalidate();
}
}