/// <summary>
/// Initializes this instance.
/// </summary>
protected virtual void Init()
{
_mediaSize = PrintMediaSize.NorthAmericaLetter;
Size pageSize = _dict[_mediaSize];
_width = pageSize.Width;
_height = pageSize.Height;
}
/// <summary>
/// Creates a new paper size setting with a custom paper size.
/// </summary>
/// <param name="width">The custom width.</param>
/// <param name="height">The custom height.</param>
public PaperSize(double width, double height) : this()
{
if (width <= 0.0)
{
throw new ArgumentOutOfRangeException("width", ResourceStrings.ReportingPaperSizeWidthError);
}
if (height <= 0.0)
{
throw new ArgumentOutOfRangeException("height", ResourceStrings.ReportingPaperSizeHightError);
}
_mediaSize = PrintMediaSize.PrinterCustom;
_width = width;
_height = height;
}
/// <summary>
/// 处理打印请求
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
void OnPrintTaskRequested(PrintManager sender, PrintTaskRequestedEventArgs e)
{
sender.PrintTaskRequested -= OnPrintTaskRequested;
PrintTask printTask = null;
printTask = e.Request.CreatePrintTask(_jobName, (src) =>
{
// 初始化打印预览时的方向和纸张大小
printTask.Options.Orientation = (_info.Orientation == PrintPageOrientation.Portrait) ? PrintOrientation.Portrait : PrintOrientation.Landscape;
PrintMediaSize size = _info.PaperSize.MediaSize;
if (size != PrintMediaSize.PrinterCustom)
{
printTask.Options.MediaSize = size;
}
// 报表中包含图片,先将Excel导出,再导入。否则，图片打印不出来
if (_hasPictures)
{
_excel.ShowDecoration = false;
_cachedStream = new MemoryStream();
_excel.SaveXmlBackground(_cachedStream);
_cachedStream.Seek(0L, SeekOrigin.Begin);
_excel.OpenXmlOnBackground(_cachedStream);
}
Memento memento = new Memento();
Init(memento);
StretchContent();
src.SetSource(_printDoc.DocumentSource);
// 打印任务完成时释放资源
printTask.Completed += (s, args) =>
{
if (_hasPictures)
{
// 恢复分页线
if (_showDeco)
{
_excel.ShowDecoration = true;
_cachedStream.Seek(0L, SeekOrigin.Begin);
_excel.OpenXmlOnBackground(_cachedStream);
}
_cachedStream.Close();
_cachedStream = null;
}
Resume(memento);
};
});
}
/// <summary>
/// Reads the XML base.
/// </summary>
/// <param name="reader">The reader.</param>
protected virtual void ReadXmlBase(XmlReader reader)
{
string str;
Serializer.InitReader(reader);
if ((reader.NodeType == ((XmlNodeType)((int)XmlNodeType.Element))) && ((str = reader.Name) != null))
{
if (str != "MediaSize")
{
if (str != "PaperWidth")
{
if (str == "PaperHeight")
{
_height = Serializer.ReadAttributeDouble("value", 0.0, reader);
}
return;
}
}
else
{
_mediaSize = Serializer.ReadAttributeEnum("value", PrintMediaSize.NorthAmericaLetter, reader);
if (_mediaSize != PrintMediaSize.PrinterCustom)
{
try
{
Size pageSize = _dict[_mediaSize];
_width = (int)pageSize.Width;
_height = (int)pageSize.Height;
}
catch
{
}
}
return;
}
_width = Serializer.ReadAttributeDouble("value", 0.0, reader);
}
}
public PaperSize(PrintMediaSize mediaSize) : this()
{
MediaSize = mediaSize;
}
