[*分享*]winfrom滚动字幕
网上找了很多winform滚动字幕的，都是简单的弄个timer
自己写了个按不同需求滚动的

写了个winform滚动字幕的（可以由下往上滚，由左往右滚，由右往左滚（其中可以慢慢的滚，类似LED滚动屏幕））

写了一个类以便调用

public class LableMgr
  {
  int roll_speed = 10; // 间隔(毫秒)
  int roll_step = 24; //(左滚) 步长
  int roll_topstep = 10; // （上滚）步长
  Font roll_font = new Font("黑体", 38, FontStyle.Bold);//字体
  Color roll_color = Color.Red;//字颜色
  int roll_left;//字距左边的距离
  int roll_top;//字距上方的距离
  Timer t_roll = new Timer();
  Size roll_TxtSize = Size.Empty;//字大小
  string roll_Text = null;//字内容
  Label labl = new Label();
  Image RollBackground = Image.FromFile(string.Format(@"{0}\Top.jpg", Application.StartupPath));
  string rolltype;//滚动方式
  Timer t_next = new Timer();//滚动间隔
  int next_time = 3000;//间隔时间
  string[] rollTxts;//滚动内容
  int roll_index = 0;//索引
  int ROLL_SPLIT = 10;//距下次距离

  Graphics GhF = null;
  public LableMgr(Label lb, string[] rollText, Graphics Gh, string rollType)
  {
  this.GhF = Gh;
  this.labl = lb;
  this.rolltype = rollType;
  this.rollTxts = rollText;
  switch (rolltype)
  {
  case "leftlong":
  InitRoll(rollText[roll_index]);
  break;
  case "right":
  InitRoll(rollText[roll_index]);
  break;
  case "top":
  InitRoll(rollText[roll_index]);
  break;
  case "leftstep":
  InitLeftRoll(rollText);
  break;
  default:
  InitRoll(rollText[roll_index]);
  break;
  }
  }

  private void InitLeftRoll(string[] content)
  {
  for (int i = 0; i < content.Length; i++)
  {
  roll_Text += content[i] + " ";
  }
  roll_left = RollBackground.Width;
  t_roll.Start();
  t_roll.Interval = 2;
  t_roll.Tick += new EventHandler(t_roll_Tick);
  }

  private void InitRoll(string rollText)
  {
  switch (rolltype)
  {
  case "leftlong":
  roll_left = RollBackground.Width;
  break;
  case "right":
  roll_left = 0;
  break;
  }
  roll_top = RollBackground.Height;
  roll_Text = rollText;
  //启动
  t_roll.Interval = roll_speed;
  t_roll.Tick += new EventHandler(t_roll_Tick);
  t_roll.Start();

  t_next.Interval = next_time;
  t_next.Tick += new EventHandler(t_next_Tick);
  t_next.Start();
  }

  void t_next_Tick(object sender, EventArgs e)
  {
  switch (rolltype)
  {