[*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)
{
case "leftlong":
this.roll_left = RollBackground.Width;
roll_index++;
if (roll_index == rollTxts.Count())
{
roll_index = 0;
}
this.roll_Text = this.rollTxts[roll_index];
break;
case "leftstep":
this.roll_left = RollBackground.Width;
break;
case "right":
this.roll_left = 0;
roll_index++;
if (roll_index == rollTxts.Count())
{
roll_index = 0;
}
this.roll_Text = this.rollTxts[roll_index];
break;
case "top":
this.roll_top = RollBackground.Height;
roll_index++;
if (roll_index == rollTxts.Count())
{
roll_index = 0;
}
this.roll_Text = this.rollTxts[roll_index];
break;
}
this.t_roll.Start();
}
void t_roll_Tick(object sender, EventArgs e)
{
switch (rolltype)
{
case "top":
roll_top -= roll_topstep;//移动一个步长
if (roll_top <= 0)//如果移动到顶部
{
roll_top = 0;
this.DrawRoll();
t_roll.Stop();
}
break;
case "leftlong":
roll_left -= roll_step;//移动一个步长
if (roll_left <= 0)//如果移动到最左侧
{
roll_left = 0;
this.DrawRoll();
}
break;
case "leftstep":
roll_left -= 2;
Size proposedSize = new Size(int.MaxValue, int.MaxValue);
int roltext = TextRenderer.MeasureText(roll_Text, roll_font, proposedSize, TextFormatFlags.ModifyString).Width;//字符串长度
int nextroll = ROLL_SPLIT + roltext + RollBackground.Width;
if (roll_left <= (-TextRenderer.MeasureText(roll_Text, roll_font).Width - ROLL_SPLIT))
{
roll_left = 0;
this.DrawRoll();
}
break;
case "right":
roll_left += roll_step;//移动一个步长
Size pSize = new Size(int.MaxValue, int.MaxValue);
if (roll_left >= Convert.ToInt32(RollBackground.Width - TextRenderer.MeasureText(roll_Text, roll_font, pSize, TextFormatFlags.ModifyString).Width * 0.75))//如果移动到最右侧
{
roll_left = Convert.ToInt32(RollBackground.Width - TextRenderer.MeasureText(roll_Text, roll_font, pSize, TextFormatFlags.ModifyString).Width * 0.75);
this.DrawRoll();
t_roll.Stop();
}
break;
}
this.DrawRoll();
}
private void DrawRoll()
{
Image bt = RollBackground.Clone() as Image;
Graphics gh = Graphics.FromImage(bt);
gh.Clear(Color.Black);
switch (rolltype)
{
case "top":
gh.DrawString(roll_Text, roll_font, new SolidBrush(roll_color), 0, roll_top + 20);
break;
case "leftlong":
gh.DrawString(roll_Text, roll_font, new SolidBrush(roll_color), roll_left, RollBackground.Height / 3);
break;
case "leftstep":
gh.DrawString(roll_Text, roll_font, new SolidBrush(roll_color), roll_left, RollBackground.Height / 3);
gh.DrawString(roll_Text, roll_font, new SolidBrush(roll_color), roll_left + TextRenderer.MeasureText(roll_Text, roll_font).Width + ROLL_SPLIT, RollBackground.Height / 3);
break;
case "right":
gh.DrawString(roll_Text, roll_font, new SolidBrush(roll_color), roll_left, RollBackground.Height / 3);
break;
}
DrawOnForm(bt, 0, 0, RollBackground.Width, RollBackground.Height);
if (DateTime.Now.TimeOfDay.TotalMinutes % 5 == 0)
GC.Collect();
}
protected void DrawOnForm(Image img, int x, int y, int width, int height)
{
GhF.DrawImage(img, x, y, width, height);
}
}
前台调用时只需
Graphics GhForm = this.CreateGraphics();
string[] conte = new string[] {"测试文本!","测试文本!", "测试文本!", "测试文本!" };//要滚动的内容
Form fo = new Form();
Label lb = new Label();
string rolltype = "right";//滚动方式
LableMgr lmg = new LableMgr(lb, conte, GhForm, rolltype);
望大家看完指教！
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学习学习
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谢谢楼主分享
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学习 一下下
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!~你都没上过30分的。。。分高点人多撒。。
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至于这么多么。。。
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看起来眼晕，您要是能把注视加上就好了
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谢谢楼主分享
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