func RunPr2Engine(s string, pr2 driverlayer.IPr2Print, pin *driverlayer.DriverArg) error {
var pc PrintCurState
pf, e := ParserPrintXml(s)
if e != nil {
utils.Error("parse xml file error %s", e.Error())
} else {
utils.Info("parse xml file success")
}
ps := pf.S
pi := pf.V
pc.BottomMargin = ps.ps.Bottommargin
pc.LeftMargin = ps.ps.Leftmargin
pc.PageHeight = ps.ps.Height
pc.PageWidth = ps.ps.Width
pc.TopMargin = ps.ps.Topmargin
pc.RightMargin = ps.ps.Rightmargin
pc.CurX = 0
pc.CurY = 0
pc.CurPage = 1
pc.Flags = 0
pc.LineInterval = ps.ps.LineInterval
pc.ColInterval = ps.ps.ColInterval
RecurCalcExtent(pi, &pc)
utils.Info("RecurCalcExtent success")
fl := GeneratePrintLine(pi)
utils.Debug("begin print printline----------------------------")
PrintPrintLine(fl)
utils.Debug("end print printline----------------------------")
pr2.BeginPrintJob(pin, 20)
defer pr2.EndPrinterJob()
RunRealPrinter(ps, fl, pr2)
return nil
}
//执行实际的打印操作,至此,PrintLine都是排好序的
func RunRealPrinter(ps *PrintSetting, pi *PrintLine, pr2 driverlayer.IPr2Print) {
var pl *PrintLine
pl = pi
var (
X float32
Y float32
ftmp int64
curflag int64
curbflag int64
remain int64
)
//首先是各种预设参数的打印
pr2.Init()
pr2.SetLineInterval(ps.ps.LineInterval)
pr2.SetColInterval(ps.ps.ColInterval)
pr2.SetLeftMargin(ps.ps.Leftmargin)
pr2.SetRightMargin(ps.ps.Width - ps.ps.Rightmargin)
pr2.SetTop(ps.ps.Topmargin)
// pr2.SetPageBottom(ps.ps.Height, ps.ps.Bottommargin) //
pr2.AdvanceOneLine() //pr2需要先进纸至少一行
//然后是打印文字
for {
if pl == nil {
utils.Trace("end of PrintLine,print success")
//清除所有标志位
remain = PRINT_FORMAT_BOLD
for {
if remain >= PRINT_MAX_FLAG {
break
}
curbflag = curflag & remain
//标志改变了
if curbflag >= 1 {
switch curbflag {
case PRINT_FORMAT_BOLD:
pr2.CancelBold()
break
case PRINT_FORMAT_UNDERLINE:
pr2.CancelUnderline()
break
case PRINT_FORMAT_SUP:
pr2.CancelSuperline()
break
case PRINT_FORMAT_SUB:
pr2.CancelSubline()
break
case PRINT_FORMAT_DOUBLEHEIGHT:
pr2.CancelDoublePrintHeight()
break
case PRINT_FORMAT_DOUBLEWIDTH:
pr2.CancelDoublePrintWidth()
break
case PRINT_FORMAT_TRIPLEHEIGHT:
case PRINT_FORMAT_TRIPLEWIDTH:
default:
}
}
remain = remain << 1
}
//进行退纸操作
pr2.EjectPaper()
return
}
if Y != pl.PrY {
//推进列
pr2.SeekColPos(pl.PrY-Y, Y)
pr2.Carriage()
X = 0
Y = pl.PrY
}
//进行打印
if X != pl.PrX {
//推进行
pr2.SeekLinePos(pl.PrX-X, X)
X = pl.PrX
}
//处理特效的事情,对当前标志和所需要的标志进行异或处理
ftmp = curflag ^ pl.Flags
utils.Debug("get current flag [%d]", ftmp)
remain = PRINT_FORMAT_BOLD
for {
if remain >= PRINT_MAX_FLAG {
break
}
curbflag = ftmp & remain
//标志改变了
if curbflag >= 1 {
if (pl.Flags & curbflag) >= 1 { //表明是置位操作
switch curbflag {
case PRINT_FORMAT_BOLD:
pr2.SetBold()
break
case PRINT_FORMAT_UNDERLINE:
pr2.SetUnderline()
break
case PRINT_FORMAT_SUP:
pr2.SetSuperline()
break
case PRINT_FORMAT_SUB:
pr2.SetSubline()
break
case PRINT_FORMAT_DOUBLEHEIGHT:
pr2.DoublePrintHeight()
break
case PRINT_FORMAT_DOUBLEWIDTH:
pr2.DoublePrintWidth()
break
case PRINT_FORMAT_TRIPLEHEIGHT:
break
case PRINT_FORMAT_TRIPLEWIDTH:
break
case PRINT_FORMAT_TURNPAGE:
pr2.EjectPaper()
default:
}
SetPrintInsFlag(&curflag, curbflag)
} else { //清除位操作
switch curbflag {
case PRINT_FORMAT_BOLD:
pr2.CancelBold()
break
case PRINT_FORMAT_UNDERLINE:
pr2.CancelUnderline()
break
case PRINT_FORMAT_SUP:
pr2.CancelSuperline()
break
case PRINT_FORMAT_SUB:
pr2.CancelSubline()
break
case PRINT_FORMAT_DOUBLEHEIGHT:
pr2.CancelDoublePrintHeight()
break
case PRINT_FORMAT_DOUBLEWIDTH:
pr2.CancelDoublePrintWidth()
break
case PRINT_FORMAT_TRIPLEHEIGHT:
case PRINT_FORMAT_TRIPLEWIDTH:
case PRINT_FORMAT_TURNPAGE:
default:
}
ClearPrintInsFlag(&curflag, curbflag)
}
}
remain = remain << 1
}
if pl.PrContent != "" {
pr2.OutputString(pl.PrContent)
X += float32(pl.clen) * ps.ps.ColInterval
utils.Trace("After print text,X change to %f", X)
//调整水平距离
}
pl = pl.PrNext
}
}