/// <summary>
/// This is used to fire an event on the image area
/// </summary>
/// <param name="areaEvent">The event to fire</param>
/// <param name="args">The event arguments</param>
public void RaiseEvent(ImageAreaEvent areaEvent, object args)
{
// DrawImage always fires. The image map sets all of the necessary event argument parameters.
if (areaEvent == ImageAreaEvent.DrawImage)
{
OnDrawImage((DrawImageEventArgs)args);
return;
}
// No other events are fired if disabled
if (enabled)
{
switch (areaEvent)
{
case ImageAreaEvent.Click:
this.OnClick((ImageMapClickEventArgs)args);
break;
case ImageAreaEvent.DoubleClick:
this.OnDoubleClick((ImageMapClickEventArgs)args);
break;
case ImageAreaEvent.MouseDown:
this.OnMouseDown((MouseEventArgs)args);
break;
case ImageAreaEvent.MouseUp:
this.OnMouseUp((MouseEventArgs)args);
break;
case ImageAreaEvent.MouseEnter:
this.OnMouseEnter((EventArgs)args);
break;
case ImageAreaEvent.MouseLeave:
this.OnMouseLeave((EventArgs)args);
break;
case ImageAreaEvent.MouseHover:
this.OnMouseHover((EventArgs)args);
break;
case ImageAreaEvent.MouseMove:
this.OnMouseMove((MouseEventArgs)args);
break;
case ImageAreaEvent.Enter:
this.OnEnter((EventArgs)args);
break;
case ImageAreaEvent.Leave:
this.OnLeave((EventArgs)args);
break;
}
}
}
/// <summary>
/// This is called to raise one of the mouse click events. They are all similar and use the same code.
/// </summary>
/// <param name="areaEvent">The image area mouse event to raise</param>
/// <param name="clickLocation">The mouse cursor click location</param>
/// <param name="args">The event arguments</param>
private void RaiseMouseClickEvent(ImageAreaEvent areaEvent, Point clickLocation, object args)
{
ImageMapClickEventArgs ce = null;
Point offset = CalculateImageOffset();
int nArea = this.ImageAreaAtPoint(new Point(clickLocation.X - offset.X, clickLocation.Y - offset.Y));
if(nArea != -1)
{
ImageAreaBase a = (ImageAreaBase)this.Areas[nArea];
if(a.Action == AreaClickAction.FireEvent)
{
if(activeArea != nArea)
this.Focus(nArea, true);
// Create ImageMapClickEventArgs if the passed arguments parameter is null
if(args == null)
ce = new ImageMapClickEventArgs(nArea, clickLocation.X - offset.X,
clickLocation.Y - offset.Y);
switch(areaEvent)
{
case ImageAreaEvent.Click:
a.RaiseEvent(areaEvent, ce);
this.OnClick(ce);
break;
case ImageAreaEvent.DoubleClick:
a.RaiseEvent(areaEvent, ce);
this.OnDoubleClick(ce);
break;
case ImageAreaEvent.MouseDown:
case ImageAreaEvent.MouseUp:
a.RaiseEvent(areaEvent, args);
break;
default:
throw new NotImplementedException("Unknown event used for RaiseMouseClickEvent");
}
}
}
}