/// <summary>
/// 重绘前景方法
/// </summary>
/// <param name="paint">绘图对象</param>
/// <param name="clipRect">裁剪区域</param>
public override void OnPaintBackground(CPaint paint, RECT clipRect)
{
base.OnPaintBackground(paint, clipRect);
lock (m_barrages)
{
int barragesSize = m_barrages.Count;
for (int i = 0; i < barragesSize; i++)
{
Barrage brg = m_barrages[i];
FONT font = brg.Font;
RECT rect = brg.Rect;
String str = brg.Text;
SIZE size = paint.TextSize(str, font);
rect.right = rect.left + size.cx;
rect.bottom = rect.top + size.cy;
brg.Rect = rect;
long color = brg.Color;
int mode = brg.Mode;
if (mode == 1)
{
int a = 0, r = 0, g = 0, b = 0;
COLOR.ToARGB(null, color, ref a, ref r, ref g, ref b);
a = a * brg.Tick / 400;
color = COLOR.ARGB(a, r, g, b);
}
paint.DrawText(str, color, font, rect);
}
}
}
/// <summary>
/// 秒表方法
/// </summary>
/// <param name="timerID">秒表ID</param>
public override void OnTimer(int timerID)
{
base.OnTimer(timerID);
if (m_timerID == timerID)
{
bool paint = false;
lock (m_barrages)
{
int barragesSize = m_barrages.Count;
if (barragesSize > 0)
{
int width = Width, height = Height;
for (int i = 0; i < barragesSize; i++)
{
Barrage brg = m_barrages[i];
int mode = brg.Mode;
if (mode == 0)
{
if (brg.Rect.right < 0)
{
m_barrages.Remove(brg);
i--;
barragesSize--;
}
else
{
brg.Calculate();
}
paint = true;
}
else if (mode == 1)
{
int tick = brg.Tick;
tick--;
if (tick <= 0)
{
m_barrages.Remove(brg);
i--;
barragesSize--;
}
else
{
brg.Tick = tick;
}
if (tick % 20 == 0)
{
paint = true;
}
}
}
}
}
if (paint)
{
Invalidate();
}
}
}
/// <summary>
/// 提示
/// </summary>
/// <param name="var">变量</param>
/// <returns>结果</returns>
public double Alert(CVariable var)
{
BarrageDiv barrageDiv = m_chart.BarrageDiv;
Barrage barrage = new Barrage();
barrage.Text = m_indicator.GetText(var.m_parameters[0]);
barrage.Mode = 1;
barrageDiv.AddBarrage(barrage);
return(1);
}
/// <summary>
/// 调用控件线程方法
/// </summary>
/// <param name="args">参数</param>
public void OnInvoke(object args)
{
CMessage message = (CMessage)args;
List <ChatData> datas = new List <ChatData>();
ChatService.GetChatDatas(datas, message.m_body, message.m_bodyLength);
int size = datas.Count;
String chatInfo = "";
for (int i = 0; i < size; i++)
{
chatInfo = datas[i].m_text;
Barrage brg = new Barrage();
brg.Text = chatInfo;
m_chart.BarrageDiv.AddBarrage(brg);
}
datas.Clear();
}
/// <summary>
/// 启动弹幕
/// </summary>
/// <param name="barrage">弹幕参数</param>
public void AddBarrage(Barrage barrage)
{
barrage.Color = m_sysColors[m_tick % 6];
int width = Width, height = Height;
if (width < 100)
{
width = 100;
}
if (height < 100)
{
height = 100;
}
int mode = barrage.Mode;
if (mode == 0)
{
barrage.Rect = new RECT(width, m_rd.Next(0, height), width, 0);
}
else
{
int left = 0, top = 0;
if (width > 200)
{
left = m_rd.Next(0, width - 200);
}
if (height > 200)
{
top = m_rd.Next(0, height - 200);
}
barrage.Rect = new RECT(left, top, left, 0);
}
lock (m_barrages)
{
m_barrages.Add(barrage);
}
m_tick++;
}