private static PrinterMargins GetPrinterMarginsInstance()
{
if (thePrinterMarginsInstance == null)
{
thePrinterMarginsInstance = new PrinterMargins(GetPrintDocumentInstance());
}
return(thePrinterMarginsInstance);
}
public static void Reset()
{
if (thePrintDocumentInstance != null)
{
thePrintDocumentInstance.Dispose();
}
thePrintDocumentInstance = null;
thePrinterMarginsInstance = null;
}
/// <summary>
/// 页面设置对话框。
/// </summary>
public System.Drawing.Printing.PageSettings PageSetup()
{
PrinterPageSetting printerPageSetting;
printerPageSetting = new PrinterPageSetting(mPrintDocument);
printerPageSetting.PrintPage += new PrintPageDelegate(this.PrintPageEventHandler);
PageSettings pstBack = mPrintDocument.DefaultPageSettings;
PageSettings pstNew = printerPageSetting.ShowPageSetupDialog();
if (pstBack != pstNew)
{
//改变页面设置后，单件重置
PrinterSingleton.PrintDocument = mPrintDocument;
mPrinterMargins = new PrinterMargins(mPrintDocument);
PrinterSingleton.PrinterMargins = mPrinterMargins;
}
return(pstNew);
}
//还可以将此程序稍微修改,用一个集体管理,动态加载打印对象,形成任意多个网格的组合体,打印任意复杂的网格
public MisGoldPrinterOfReWrite(bool p_IsLandscape, PrinterMargins printerMargins)
{
PrinterSingleton.Reset();
mCurrentPageIndex = 1;
mCurrentRowIndex = 0;
//单一模式，全部打印对象使用下面相同的对象，提高打印速度效率
mPrintDocument = PrinterSingleton.PrintDocument;
mPrintDocument.DefaultPageSettings.Landscape = p_IsLandscape;
mPrinterMargins = PrinterSingleton.PrinterMargins;
// mPrintDocument.DocumentName = "MIS金质打印通，欢迎使用！";
_sewing = new Sewing(30, SewingDirectionFlag.Left);
mPrinter = new Printer();
_body = new Body(); //主要对象，所以实例化
}
private static void old_acctor_mc()
{
thePrintDocumentInstance = null;
thePrinterMarginsInstance = null;
}