/// <summary>
/// 绘制Item的事件
/// </summary>
/// <param name="ACanvas"></param>
/// <param name="aDrawRect">当前DrawItem的区域</param>
/// <param name="ADataDrawBottom">Item所在的Data本次绘制底部位置</param>
/// <param name="ADataScreenTop"></param>
/// <param name="ADataScreenBottom"></param>
public void PaintTo(HCStyle aStyle, RECT aDrawRect,
int APageDataDrawTop, int APageDataDrawBottom, int APageDataScreenTop, int APageDataScreenBottom,
HCCanvas ACanvas, PaintInfo APaintInfo) // 不可继承
{
int vDCState = ACanvas.Save();
try
{
DoPaint(aStyle, aDrawRect, APageDataDrawTop, APageDataDrawBottom,
APageDataScreenTop, APageDataScreenBottom, ACanvas, APaintInfo);
}
finally
{
ACanvas.Restore(vDCState);
ACanvas.Refresh(); // 处理下一个使用Pen时修改Pen的属性值和当前属性值一样时，不会触发Canvas重新SelectPen导致Pen的绘制失效的问题
}
}