Python reportlab将图像插入表格 [英] Python reportlab inserting image into table

问题描述

在 reportlab 用户指南(第 79 页)中，图像是这样的插入到表中.

In the reportlab user guide (page79), this is how the images are inserted into the table.

I = Image('../images/replogo.gif')
I.drawHeight = 1.25*inch*I.drawHeight / I.drawWidth
I.drawWidth = 1.25*inch
P0 = Paragraph('''
               <b>A pa<font color=red>r</font>a<i>graph</i></b>
               <super><font color=yellow>1</font></super>''',
               styleSheet["BodyText"])
P = Paragraph('''
       <para align=center spaceb=3>The <b>ReportLab Left
       <font color=red>Logo</font></b>
       Image</para>''',
       styleSheet["BodyText"])
data=  [['A',   'B', 'C',     P0, 'D'],
        ['00', '01', '02', [I,P], '04'],
        ['10', '11', '12', [P,I], '14'],
        ['20', '21', '22',  '23', '24'],
        ['30', '31', '32',  '33', '34']]
t=Table(data,style=[('GRID',(1,1),(-2,-2),1,colors.green),
                    ('BOX',(0,0),(1,-1),2,colors.red),
                    ('LINEABOVE',(1,2),(-2,2),1,colors.blue),
                    ('LINEBEFORE',(2,1),(2,-2),1,colors.pink),
                    ('BACKGROUND', (0, 0), (0, 1), colors.pink),
                    ('BACKGROUND', (1, 1), (1, 2), colors.lavender),
                    ('BACKGROUND', (2, 2), (2, 3), colors.orange),
                    ('BOX',(0,0),(-1,-1),2,colors.black),
                    ('GRID',(0,0),(-1,-1),0.5,colors.black),
                    ('VALIGN',(3,0),(3,0),'BOTTOM'),
                    ('BACKGROUND',(3,0),(3,0),colors.limegreen),
                    ('BACKGROUND',(3,1),(3,1),colors.khaki),
                    ('ALIGN',(3,1),(3,1),'CENTER'),
                    ('BACKGROUND',(3,2),(3,2),colors.beige),
                    ('ALIGN',(3,2),(3,2),'LEFT'),
                    ])

因此，根据上述用户指南，我假设要将图像插入表格中，我所要做的就是使用 PIL 导入图像、图像模块、加载图像并将其用作表格数据.

So based on the above user guide, i assume that to insert images into tables, all i have to do is import image using PIL, image module , load image and use it as data for table.

from reportlab.pdfgen import canvas
from reportlab.lib.pagesizes import A4, cm,landscape
from reportlab.lib.styles import getSampleStyleSheet
from reportlab.platypus import Paragraph, Table, TableStyle
from reportlab.lib.enums import TA_LEFT, TA_CENTER
from reportlab.lib import colors
from PIL import Image as im
a=im.open("temp.jpg")
data=[['1',a],['3','4']]
c = canvas.Canvas("Reportlabtest.pdf", pagesize=landscape(A4))
table = Table(data, colWidths=200, rowHeights=50)
table.setStyle(TableStyle([
                           ('INNERGRID', (0,0), (-1,-1), 0.25, colors.black),
                           ('BOX', (0,0), (-1,-1), 0.25, colors.black),
                           ('BACKGROUND',(0,0),(-1,2),colors.lightgrey)
                           ]))
table.wrapOn(c, 200, 400)
table.drawOn(c,20,50)
c.save()

但我没有将图像插入表格中，而是在 pdf "PIL.Jpegimageplugin.JPEGImageFile mode=RGB size=200x200 at 0x179B1E8"

But instead of inserting the image into the table, i had this message created on the pdf "PIL.Jpegimageplugin.JPEGImageFile mode=RGB size=200x200 at 0x179B1E8"

可能是什么问题?

推荐答案

您可以将 ReportLab 的 Image 用于图像目的，而不是 PIL .. 希望对您有所帮助.我已将您的代码修改为以下内容.

You can use the Image of the ReportLab for image purpose instead of PIL.. hope it helps you. I have modified your code to below.

from reportlab.pdfgen import canvas
from reportlab.lib.pagesizes import A4, cm,landscape
from reportlab.lib.styles import getSampleStyleSheet
from reportlab.platypus import Paragraph, Table, TableStyle, Image
from reportlab.lib.enums import TA_LEFT, TA_CENTER
from reportlab.lib import colors
from reportlab.lib.units import inch

a = Image.open("path/to/temp.jpg")  
a.drawHeight = 2*inch
a.drawWidth = 2*inch
data=[['1',a],['3','4']]
c = canvas.Canvas("Reportlabtest.pdf", pagesize=landscape(A4))
table = Table(data, colWidths=200, rowHeights=50)
table.setStyle(TableStyle([
                           ('INNERGRID', (0,0), (-1,-1), 0.25, colors.black),
                           ('BOX', (0,0), (-1,-1), 0.25, colors.black),
                           ('BACKGROUND',(0,0),(-1,2),colors.lightgrey)
                           ]))
table.wrapOn(c, 200, 400)
table.drawOn(c,20,50)
c.save()

这篇关于Python reportlab将图像插入表格的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持IT屋！