Question

我在django框架中使用reportlab pdf库，以便用hindi语言创建pdf报告。我从PostgreSql数据库获取数据，如下所述。

     waterdate      month year   rivername    stationname    distname
2011-06-22 00:00:00 June  2011      नयार       मरोरा           पौड़ी
2011-06-22 00:00:00 June  2011      गंगा        हरिद्वार          हरिद्वार
2011-06-22 00:00:00 June  2011      गंगा        नरोरा/डी0एस0    बुलन्दशहर
2011-06-22 00:00:00 June  2011      गंगा        फतेहगढ़         फर्रूखाबाद
2011-06-22 00:00:00 June  2011      गंगा        गुमटिया          कन्नौज

我已编写以下代码将上表显示为pdf文件。

printing.py

from reportlab.lib.pagesizes import letter,A4
from reportlab.platypus import SimpleDocTemplate,Paragraph,Table,TableStyle
from reportlab.lib.styles import getSampleStyleSheet, ParagraphStyle
from reportlab.lib.enums import TA_CENTER,TA_JUSTIFY
from reportlab.pdfbase import pdfmetrics
from reportlab.pdfbase.ttfonts import TTFont
from .models import Rainfall
pdfmetrics.registerFont(TTFont('Hindi1', 'gargi.ttf'))

class printReport: 
def rainfall_report(self):
    buffer = self.buffer 
    doc = SimpleDocTemplate(self.buffer,rightMargin=10,leftMargin=10,topMargin=25,bottomMargin=25,pagesize=self.pagesize)
    styles = getSampleStyleSheet()
    styles.add(ParagraphStyle(name="TableHeader",alignment=TA_CENTER,))
    styles.add(ParagraphStyle(name="ParagraphTitle", fontSize='11',alignment=TA_JUSTIFY,fontName="FreeSansBold"))
    styles.add(ParagraphStyle(name="Justify", fontSize='11',alignment=TA_JUSTIFY,fontName="FreeSansBold"))
    data = []
    data.append(Paragraph( 'Rainfall Data', styles['Title']))
    data.append(Spacer(1,12))
    table_data =[]
    table_data.append([
        Paragraph('Date', styles['TableHeader']),
        Paragraph('Month', styles['TableHeader']),
        Paragraph('Year',styles['TableHeader']),
        Paragraph('River Name',styles['TableHeader']),
        Paragraph('Station Name',styles['TableHeader']),
        Paragraph('District Name',styles['TableHeader'])
        ])
    rainfall_data = Rainfall.objects.all()[:10]
    for rainfall in rainfall_data:
        table_data.append([
            rainfall.waterdate,
            rainfall.month,
            rainfall.year,
            rainfall.rivername,
            rainfall.stationname, 
            rainfall.districtname
            ])
    user_table = Table(table_data,colWidths=[doc.width/7.0]*7)
    user_table.hAlign = 'CENTER'
    user_table.setStyle(TableStyle(
        [ ('INNERGRID', (0,0), (-1,-1), 0.25 , colors.black),
          ('BOX',(0,0),(-1,-1,),0.5, colors.black ),
          ('VALIGN',(0,0),(-1,0), 'MIDDLE'),
          ('BACKGROUND',(0,0),(-1,0), colors.gray ),
          ('TEXTCOLOR', (0,1), (-1,-1), colors.black),
          ('VALIGN',(2,1),(-3,-1),'MIDDLE'),
          ('ALIGN',(0,1),(-1,-1),'CENTRE'),
          ( 'FONT' , (3,0),(-1,-1) , 'Hindi1') ]))
    data.append(user_table)
    doc.build(data)
    pdf=buffer.getvalue()
    buffer.close()
    return pdf

以上代码将数据显示为pdf文件，如下所示。

正如您所见，站名和 distname 列的印地语单词不会像上面提到的数据库表那样正确。对于instanse，हरिद्वारword在pdf文件中没有正确推迟。

请帮我解决这个问题。任何帮助都会有很大的帮助。

印地语字体在使用python reportlab pdf库

0 个答案: