python之Reportlab模块 - Hu知非

2.生成文字

from reportlab.lib.styles import getSampleStyleSheet
from reportlab.platypus import Paragraph,SimpleDocTemplate
from reportlab.lib import  colors
Style=getSampleStyleSheet()
bt = Style['Normal']     #字体的样式
# bt.fontName='song'    #使用的字体
bt.fontSize=14            #字号
bt.wordWrap = 'CJK'    #该属性支持自动换行，'CJK'是中文模式换行，用于英文中会截断单词造成阅读困难，可改为'Normal'
bt.firstLineIndent = 32  #该属性支持第一行开头空格
bt.leading = 20             #该属性是设置行距
ct=Style['Normal']
# ct.fontName='song'
ct.fontSize=12
ct.alignment=1             #居中
ct.textColor = colors.red
t = Paragraph('hello',bt)
pdf=SimpleDocTemplate('ppff.pdf')
pdf.multiBuild([t])

一份pdf文件可以定义多种字体样式，如bt和ct。字体有多种属性，这里只列举一些常用的属性，

wordWrap自动换行属性的参数'CJK'是按照中文方式换行（可以在字符之间换行），英文方式为'Normal'（在空格出换行）

alignment：0 左对齐

1 居中

2 右对齐

from reportlab.platypus import Table

t = Table(data)

from reportlab.platypus import Paragraph, SimpleDocTemplate, Table,TableStyle
from reportlab.lib.units import inch
from reportlab.lib import colors
def table_model(data):
    width = 7.2  # 总宽度
    colWidths = (width / len(data[0])) * inch   # 每列的宽度
    dis_list = []
    for x in data:
        # dis_list.append(map(lambda i: Paragraph('%s' % i, cn), x))
        dis_list.append(x)
    style = [
        # ('FONTNAME', (0, 0), (-1, -1), 'song'),  # 字体
        ('FONTSIZE', (0, 0), (-1, 0), 15),  # 字体大小
        ('BACKGROUND', (0, 0), (-1, 0), HexColor('#d5dae6')),  # 设置第一行背景颜色
        ('BACKGROUND', (0, 1), (-1, 1), HexColor('#d5dae6')),  # 设置第二行背景颜色
        # 合并 （'SPAN',(第一个方格的左上角坐标)，(第二个方格的左上角坐标))，合并后的值为靠上一行的值，按照长方形合并
        ('SPAN',(0,0),(0,1)),
        ('SPAN',(1,0),(2,0)),
        ('SPAN',(3,0),(4,0)),
        ('SPAN',(5,0),(7,0)),
        ('ALIGN', (0, 0), (-1, -1), 'CENTER'),  # 对齐
        ('VALIGN', (-1, 0), (-2, 0), 'MIDDLE'),  # 对齐
        ('LINEBEFORE', (0, 0), (0, -1), 0.1, colors.grey),  # 设置表格左边线颜色为灰色，线宽为0.1
        ('TEXTCOLOR', (0, 0), (-1, 0), colors.royalblue),  # 设置表格内文字颜色
        ('TEXTCOLOR', (0, -1), (-1, -1), colors.red),  # 设置表格内文字颜色
        ('GRID', (0, 0), (-1, -1), 0.5, colors.grey),  # 设置表格框线为grey色，线宽为0.5
    component_table = Table(dis_list, colWidths=colWidths,style=style)
    return component_table
Style=getSampleStyleSheet()
n = Style['Normal']
data = [[0,1,2,3,4,5,6,7],
        [00,11,22,33,44,55,66,77],
        [000,111,222,333,444,555,666,777],
        [0000,1111, 2222, 3333, 4444, 5555, 6666, 7777],]
z = table_model(data)
pdf = MyDocTemplate('ppff.pdf')
pdf.multiBuild([Paragraph('Title',n),z])

from reportlab.graphics.shapes import Drawing, Rect

from reportlab.graphics.charts.textlabels import Label


def autoLegender( title=''):
    width = 448
    height = 230
    d = Drawing(width,height)
    lab = Label()
    lab.x = 220  #x和y是文字的位置坐标
    lab.y = 210
    lab.setText(title)
    # lab.fontName = 'song' #增加对中文字体的支持
    lab.fontSize = 20
    d.add(lab)
    d.background = Rect(0,0,width,height,strokeWidth=1,strokeColor="#868686",fillColor=None) #边框颜色
    return d
l = autoLegender('hello')
pdf=SimpleDocTemplate('ppff.pdf')
pdf.multiBuild([l])

# **这种方法可以给边框中的图例添加颜色说明**

def autoLegender(chart, categories=[], use_colors=[], title=''):
    width = 448
    height = 230
    d = Drawing(width,height)
    lab = Label()
    lab.x = 220  #x和y是title文字的位置坐标
    lab.y = 210
    lab.setText(title)
    # lab.fontName = 'song' #增加对中文字体的支持
    lab.fontSize = 20
    d.add(lab)
    d.background = Rect(0,0,width,height,strokeWidth=1,strokeColor="#868686",fillColor=None) #边框颜色
    d.add(chart)
    #颜色图例说明等
    leg = Legend()
    leg.x = 500   # 说明的x轴坐标 
    leg.y = 0     # 说明的y轴坐标
    leg.boxAnchor = 'se'
    # leg.strokeWidth = 4
    leg.strokeColor = None
    leg.subCols[1].align = 'right'
    leg.columnMaximum = 10  # 图例说明一列最多显示的个数

# leg.fontName = 'song' leg.alignment = 'right' leg.colorNamePairs = zip(use_colors, tuple(categories)) #增加颜色说明 d.add(leg) return d

from reportlab.lib import colors
from reportlab.platypus import SimpleDocTemplate
from reportlab.graphics.shapes import Drawing, Rect
from reportlab.graphics.charts.textlabels import Label
from reportlab.graphics.charts.piecharts import Pie
def autoLegender( chart,title=''):
    width = 448
    height = 230
    d = Drawing(width,height)
    lab = Label()
    lab.x = 220  #x和y是文字的位置坐标
    lab.y = 210
    lab.setText(title)
    # lab.fontName = 'song' #增加对中文字体的支持
    lab.fontSize = 20
    d.add(lab)
    d.background = Rect(0,0,width,height,strokeWidth=1,strokeColor="#868686",fillColor=None) #边框颜色
    d.add(chart)
    return d
def draw_pie(data=[], labels=[], use_colors=[], width=360,):
    '''更多属性请查询reportlab.graphics.charts.piecharts.WedgeProperties'''
    pie = Pie()
    pie.x = 60 # x,y饼图在框中的坐标
    pie.y = 20
    pie.slices.label_boxStrokeColor = colors.white  #标签边框的颜色
    pie.data = data      # 饼图上的数据
    pie.labels = labels  # 数据的标签
    pie.simpleLabels = 0 # 0 标签在标注线的右侧；1 在线上边
    pie.sameRadii = 1    # 0 饼图是椭圆；1 饼图是圆形
    pie.slices.strokeColor = colors.red       # 圆饼的边界颜色
    pie.strokeWidth=1                         # 圆饼周围空白区域的宽度
    pie.strokeColor= colors.white             # 整体饼图边界的颜色
    pie.slices.label_pointer_piePad = 10       # 圆饼和标签的距离
    pie.slices.label_pointer_edgePad = 25    # 标签和外边框的距离
    pie.width = width
    pie.direction = 'clockwise'
    pie.pointerLabelMode  = 'LeftRight'
    # for i in range(len(labels)):
    #     pie.slices[i].fontName = 'song' #设置中文
    for i, col in enumerate(use_colors):
         pie.slices[i].fillColor  = col
    return pie



data = [10,9,8,7,6,5,4,3,2,1]
labs = ['0000000','1111111','2222222','3333333','4444444',
        '5555555','6666666','7777777','8888888','9999999']
color = [HexColor("#696969"),HexColor("#A9A9A9"),HexColor("#D8BFD8"),
         HexColor("#DCDCDC"),HexColor('#E6E6FA'),HexColor("#B0C4DE"),
         HexColor("#778899"),HexColor('#B0C4DE'),HexColor("#6495ED"),
         HexColor("#483D8B")
         ]
z = autoLegender(draw_pie(data,labs,color),labs,color)

pdf=SimpleDocTemplate('ppff.pdf')
pdf.multiBuild([z])

from reportlab.graphics.charts.barcharts import VerticalBarChart
from reportlab.lib.colors import HexColor
def draw_bar_chart(min, max, x_list, data=[()], x_label_angle=0, bar_color=HexColor("#7BB8E7"), height=125, width=280):
    :param min: 设置y轴的最小值
    :param max: 设置y轴的最大值
    :param x_list: x轴上的标签
    :param data: y轴对应标签的值
    :param x_label_angle: x轴上标签的倾斜角度
    :param bar_color: 柱的颜色  可以是含有多种颜色的列表
    :param height: 柱状图的高度
    :param width: 柱状图的宽度
    :return: 
    bc = VerticalBarChart()
    bc.x = 50            # x和y是柱状图在框中的坐标
    bc.y = 50
    bc.height = height  # 柱状图的高度
    bc.width = width    # 柱状图的宽度
    bc.data = data      
    for j in xrange(len(x_list)):
        setattr(bc.bars[j], 'fillColor', bar_color)  # bar_color若含有多种颜色在这里分配bar_color[j]
    # 调整step
    minv = min * 0.5
    maxv = max * 1.5
    maxAxis = int(height/10)
    # 向上取整
    minStep = int((maxv-minv+maxAxis-1)/maxAxis)
    bc.valueAxis.valueMin = min * 0.5      #设置y轴的最小值
    bc.valueAxis.valueMax = max * 1.5      #设置y轴的最大值
    bc.valueAxis.valueStep = (max-min)/4   #设置y轴的最小度量单位
    if bc.valueAxis.valueStep < minStep:
        bc.valueAxis.valueStep = minStep
    if bc.valueAxis.valueStep == 0:
        bc.valueAxis.valueStep = 1
    bc.categoryAxis.labels.boxAnchor = 'ne'   # x轴下方标签坐标的开口方向
    bc.categoryAxis.labels.dx = -5           # x和y是x轴下方的标签距离x轴远近的坐标
    bc.categoryAxis.labels.dy = -5
    bc.categoryAxis.labels.angle = x_label_angle   # x轴上描述文字的倾斜角度
    # bc.categoryAxis.labels.fontName = 'song'
    x_real_list = []
    if len(x_list) > 10:
        for i in range(len(x_list)):
            tmp = '' if i%5 != 0 else x_list[i]
            x_real_list.append(tmp)
    else:
        x_real_list = x_list
    bc.categoryAxis.categoryNames = x_real_list
    return bc
z = autoLegender(draw_bar_chart(100, 300, ['a', 'b', 'c'], [(100, 200, 120)]))
pdf=SimpleDocTemplate('ppff.pdf')
pdf.multiBuild([z])

6.累加柱状图

def draw_2bar_chart(min, max, x_list, data=[()],array=[()], x_label_angle=0,bar_color=[],height=125, width=280):
    :param min: 设置y轴的最小值
    :param max: 设置y轴的最大值
    :param x_list: x轴上的标签
    :param data: y轴对应标签的值
    :param x_label_angle: x轴上标签的倾斜角度
    :param bar_color: 柱的颜色  可以是含有多种颜色的列表
    :param height: 柱状图的高度
    :param width: 柱状图的宽度
    :return: 
    bc = VerticalBarChart()
    bc.x = 50            # x和y是柱状图在框中的坐标
    bc.y = 50
    bc.height = height  # 柱状图的高度
    bc.width = width    # 柱状图的宽度
    bc.data = data
    # 图形柱上标注文字
    bc.barLabels.nudge = -5  # 文字在图形柱的上下位置
    bc.barLabelArray = array  # 要添加的文字
    bc.barLabelFormat = 'values'
    for j in xrange(len(data)):
        setattr(bc.bars[j], 'fillColor', bar_color[j])  # bar_color若含有多种颜色在这里分配bar_color[j]
    # 调整step
    # minv = min * 0.5
    minv = 0
    maxv = max * 1.5
    maxAxis = int(height/10)
    # 向上取整
    minStep = int((maxv-minv+maxAxis-1)/maxAxis)
    bc.valueAxis.valueMin =0      #设置y轴的最小值
    bc.valueAxis.valueMax = max * 1.5      #设置y轴的最大值
    bc.valueAxis.valueStep = (max-min)/4   #设置y轴的最小度量单位
    if bc.valueAxis.valueStep < minStep:
        bc.valueAxis.valueStep = minStep
    if bc.valueAxis.valueStep == 0:
        bc.valueAxis.valueStep = 1
    bc.categoryAxis.labels.boxAnchor = 'ne'   # x轴下方标签坐标的开口方向
    bc.categoryAxis.labels.dx = -5           # x和y是x轴下方的标签距离x轴远近的坐标
    bc.categoryAxis.labels.dy = -5
    bc.categoryAxis.labels.angle = x_label_angle   # x轴上描述文字的倾斜角度
    # bc.categoryAxis.labels.fontName = 'song'
    bc.categoryAxis.style = 'stacked'
    x_real_list = []
    if len(x_list) > 10:
        for i in range(len(x_list)):
            tmp = '' if i%5 != 0 else x_list[i]
            x_real_list.append(tmp)
    else:
        x_real_list = x_list
    bc.categoryAxis.categoryNames = x_real_list
    return bc
#    制柱状图
Style=getSampleStyleSheet()
n = Style['Normal']
my_color = [HexColor('#E13C3C'),HexColor('#BE0000')]
z = autoLegender(draw_2bar_chart(100, 300, ['a', 'b', 'c'],
                                [(100, 200, 120),(150, 50, 130)],
                                bar_color=my_color,
                                array=[['100','200','120'],['150','50','130']] ),
                 categories=['first','last'],
                 use_colors=my_color
pdf = MyDocTemplate('ppff.pdf')
pdf.multiBuild([Paragraph('Title',n),z])

from reportlab.platypus.doctemplate import BaseDocTemplate, Frame
from reportlab.lib.units import cm
from reportlab.platypus import PageTemplate
from reportlab.lib.styles import getSampleStyleSheet
import os
def myMainPageFrame(canvas, doc):  # 全局应用
    "The page frame used for all PDF documents."
    canvas.saveState()
    canvas.setFont('Times-Roman', 12)
    pageNumber = canvas.getPageNumber()
    if pageNumber > 0:
        pic_yemei = os.path.join(os.path.dirname(__file__),'yemei01.jpg')   # 页眉图片
        pic_line_file = os.path.join(os.path.dirname(__file__),'line.jpg')  # 页眉线
        canvas.drawImage(pic_yemei, 75, 795, width=100,height=25)
        canvas.drawImage(pic_line_file, 75, 780, width=450, height=15)
        canvas.drawString(10*cm, cm, str(pageNumber))
    canvas.restoreState()
class MyDocTemplate(BaseDocTemplate):  # 自定义模版类
    "The document template used for all PDF documents."
    _invalidInitArgs = ('pageTemplates',)
    def __init__(self, filename, **kw):
        frame1 = Frame(2.5*cm, 2.5*cm, 15*cm, 25*cm, id='F1')
        self.allowSplitting = 0
        BaseDocTemplate.__init__(self, filename, **kw)
        template = PageTemplate('normal', [frame1], myMainPageFrame)
        self.addPageTemplates(template)   # 绑定全局应用
Style=getSampleStyleSheet()
n = Style['Normal']
z = autoLegender(draw_bar_chart(100, 300, ['a', 'b', 'c'], [(100, 200, 120)]))
pdf = MyDocTemplate('ppff.pdf')
pdf.multiBuild([Paragraph('Title',n),z])