1 #!/usr/bin/python
   2 # -*- coding:utf-8 -*-
   3 
   4 from django.http import HttpResponse
   5 from cStringIO import StringIO
   6 from reportlab.pdfgen import canvas
   7 from reportlab import rl_config
   8 from reportlab.pdfbase import pdfmetrics
   9 from reportlab.pdfbase.ttfonts import TTFont
  10 from reportlab.lib.units import inch
  11 from reportlab.lib.utils import simpleSplit
  12 from reportlab.lib.styles import getSampleStyleSheet
  13 from reportlab.platypus import Paragraph
  14 from reportlab.lib.fonts import addMapping
  15 
  16 def hello_pdf(request):
  17     rl_config.warnOnMissingFontGlyphs = 0
  18     pdfmetrics.registerFont(TTFont('song', '/home/yisl04/.fonts/simsun.ttc'))
  19     pdfmetrics.registerFont(TTFont('fs', '/home/yisl04/.fonts/simfang.ttf'))
  20     pdfmetrics.registerFont(TTFont('hei', '/home/yisl04/.fonts/simhei.ttf'))
  21     pdfmetrics.registerFont(TTFont('yh', '/home/yisl04/.fonts/msyh.ttf'))
  22     
  23     #设置字体：常规、斜体、粗体、粗斜体
  24     addMapping('cjk', 0, 0, 'song')    #normal
  25     addMapping('cjk', 0, 1, 'fs')    #italic
  26     addMapping('cjk', 1, 0, 'hei')    #bold
  27     addMapping('cjk', 1, 1, 'yh')    #italic and bold
  28    
  29     response = HttpResponse(mimetype='application/pdf')
  30     response['Content-Disposition'] = 'attachment; filename=hello.pdf'
  31     
  32     temp = StringIO()
  33     p = canvas.Canvas(temp)
  34     
  35     #默认(0, 0)点在左下角，此处把原点(0,0)向上和向右移动，后面的尺寸都是相对与此原点设置的
  36     #注意：移动原点时，向右向上为正，坐标系也是向右为+x，向上为+y
  37     p.translate(0.5*inch, 0.5*inch)
  38     #设置字体
  39     p.setFont('song', 16)
  40     #设置颜色，画笔色和填充色
  41     p.setStrokeColorRGB(0.2, 0.5, 0.3)
  42     p.setFillColorRGB(1, 0, 1)
  43     #画一个矩形
  44     p.rect(0, 0, 3*inch, 3*inch, fill=1)
  45     #旋转文字方向
  46     p.rotate(90)
  47     p.setFillColorRGB(0, 0, 0.77)
  48     p.drawString(3*inch, -3*inch, u"我是吴仁智，呵呵！")
  49     p.rotate(-90)
  50     p.setFont('yh', 16)
  51     p.drawString(0, 0, u"drawString默认不换行！")
  52     #插入图片
  53     p.drawImage("/home/yisl04/public_html/yisl04.png", 5*inch, 5*inch, inch, inch)
  54     #设置drawString最大宽度
  55     L = simpleSplit(u'simpleSplit 只能用于 drawString 英文断行。', 'yh', 16, 9*inch)
  56     y = 9*inch
  57     for t in L:
  58         p.drawString(0, y, t)
  59         y -= p._leading
  60 
  61     #Paragraph下中文断行(网上摘抄)
  62     def wrap(self, availWidth, availHeight):
  63     # work out widths array for breaking
  64         self.width = availWidth
  65         leftIndent = self.style.leftIndent
  66         first_line_width = availWidth - (leftIndent+self.style.firstLineIndent) - self.style.rightIndent
  67         later_widths = availWidth - leftIndent - self.style.rightIndent
  68         try:
  69             self.blPara = self.breakLinesCJK([first_line_width, later_widths])
  70         except:
  71             self.blPara = self.breakLines([first_line_width, later_widths])
  72         self.height = len(self.blPara.lines) * self.style.leading
  73         return (self.width, self.height)
  74     Paragraph.wrap = wrap
  75 
  76     #中文断行还可以使用下面这种简单的方法
  77     #from reportlab.lib.styles import ParagraphStyle
  78     #ParagraphStyle.defaults['wordWrap']="CJK"
  79 
  80     styleSheet = getSampleStyleSheet()
  81     style = styleSheet['BodyText']
  82     style.fontName = 'song'
  83     style.fontSize = 16
  84     #设置行距
  85     style.leading = 20
  86     #首行缩进
  87     style.firstLineIndent = 32
  88     Pa = Paragraph(u'<b>这里是粗体</b>，<i>这里是斜体</i>, <strike>这是删除线</strike>, <u>这是下划线</u>, <sup>这是上标</sup>, <em>这里是强调</em>, <font color=#ff0000>这是红色</font>', style)
  89 
  90     Pa.wrapOn(p, 6*inch, 8*inch)
  91     Pa.drawOn(p, 0, 5*inch)
  92     
  93     p.showPage()
  94     p.save()
  95     response.write(temp.getvalue())
  96     return response