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Current File : /proc/self/root/srv/modoboa/env/lib64/python3.5/site-packages/reportlab/graphics/charts/dotbox.py
from reportlab.lib.colors import blue, _PCMYK_black
from reportlab.graphics.charts.textlabels import Label
from reportlab.graphics.shapes import Circle, Drawing, Group, Line, Rect, String
from reportlab.graphics.widgetbase import Widget
from reportlab.lib.attrmap import *
from reportlab.lib.validators import *
from reportlab.lib.units import cm
from reportlab.pdfbase.pdfmetrics import getFont
from reportlab.graphics.charts.lineplots import _maxWidth

class DotBox(Widget):
    """Returns a dotbox widget."""

    #Doesn't use TypedPropertyCollection for labels - this can be a later improvement
    _attrMap = AttrMap(
        xlabels = AttrMapValue(isNoneOrListOfNoneOrStrings,
            desc="List of text labels for boxes on left hand side"),
        ylabels = AttrMapValue(isNoneOrListOfNoneOrStrings,
            desc="Text label for second box on left hand side"),
        labelFontName = AttrMapValue(isString,
            desc="Name of font used for the labels"),
        labelFontSize = AttrMapValue(isNumber,
            desc="Size of font used for the labels"),
        labelOffset = AttrMapValue(isNumber,
            desc="Space between label text and grid edge"),
        strokeWidth = AttrMapValue(isNumber,
            desc='Width of the grid and dot outline'),
        gridDivWidth = AttrMapValue(isNumber,
            desc="Width of each 'box'"),
        gridColor = AttrMapValue(isColor,
            desc='Colour for the box and gridding'),
        dotDiameter = AttrMapValue(isNumber,
            desc="Diameter of the circle used for the 'dot'"),
        dotColor = AttrMapValue(isColor,
            desc='Colour of the circle on the box'),
        dotXPosition = AttrMapValue(isNumber,
            desc='X Position of the circle'),
        dotYPosition = AttrMapValue(isNumber,
            desc='X Position of the circle'),
        x = AttrMapValue(isNumber,
            desc='X Position of dotbox'),
        y = AttrMapValue(isNumber,
            desc='Y Position of dotbox'),
        )

    def __init__(self):
        self.xlabels=["Value", "Blend", "Growth"]
        self.ylabels=["Small", "Medium", "Large"]
        self.labelFontName = "Helvetica"
        self.labelFontSize = 6
        self.labelOffset = 5
        self.strokeWidth = 0.5
        self.gridDivWidth=0.5*cm
        self.gridColor=colors.Color(25/255.0,77/255.0,135/255.0)
        self.dotDiameter=0.4*cm
        self.dotColor=colors.Color(232/255.0,224/255.0,119/255.0)
        self.dotXPosition = 1
        self.dotYPosition = 1
        self.x = 30
        self.y = 5


    def _getDrawingDimensions(self):
        leftPadding=rightPadding=topPadding=bottomPadding=5
        #find width of grid
        tx=len(self.xlabels)*self.gridDivWidth
        #add padding (and offset)
        tx=tx+leftPadding+rightPadding+self.labelOffset
        #add in maximum width of text
        tx=tx+_maxWidth(self.xlabels, self.labelFontName, self.labelFontSize)
        #find height of grid
        ty=len(self.ylabels)*self.gridDivWidth
        #add padding (and offset)
        ty=ty+topPadding+bottomPadding+self.labelOffset
        #add in maximum width of text
        ty=ty+_maxWidth(self.ylabels, self.labelFontName, self.labelFontSize)
        #print (tx, ty)
        return (tx,ty)

    def demo(self,drawing=None):
        if not drawing:
            tx,ty=self._getDrawingDimensions()
            drawing = Drawing(tx,ty)
        drawing.add(self.draw())
        return drawing

    def draw(self):
        g = Group()

        #box
        g.add(Rect(self.x,self.y,len(self.xlabels)*self.gridDivWidth,len(self.ylabels)*self.gridDivWidth,
                   strokeColor=self.gridColor,
                   strokeWidth=self.strokeWidth,
                   fillColor=None))

        #internal gridding
        for f in range (1,len(self.ylabels)):
            #horizontal
            g.add(Line(strokeColor=self.gridColor,
                       strokeWidth=self.strokeWidth,
                       x1 = self.x,
                       y1 = self.y+f*self.gridDivWidth,
                       x2 = self.x+len(self.xlabels)*self.gridDivWidth,
                       y2 = self.y+f*self.gridDivWidth))
        for f in range (1,len(self.xlabels)):
            #vertical
            g.add(Line(strokeColor=self.gridColor,
                       strokeWidth=self.strokeWidth,
                       x1 = self.x+f*self.gridDivWidth,
                       y1 = self.y,
                       x2 = self.x+f*self.gridDivWidth,
                       y2 = self.y+len(self.ylabels)*self.gridDivWidth))

        # draw the 'dot'
        g.add(Circle(strokeColor=self.gridColor,
                     strokeWidth=self.strokeWidth,
                     fillColor=self.dotColor,
                     cx = self.x+(self.dotXPosition*self.gridDivWidth),
                     cy = self.y+(self.dotYPosition*self.gridDivWidth),
                     r = self.dotDiameter/2.0))

        #used for centering y-labels (below)
        ascent=getFont(self.labelFontName).face.ascent
        if ascent==0:
            ascent=0.718 # default (from helvetica)
        ascent=ascent*self.labelFontSize # normalize

        #do y-labels
        if self.ylabels != None:
            for f in range (len(self.ylabels)-1,-1,-1):
                if self.ylabels[f]!= None:
                    g.add(String(strokeColor=self.gridColor,
                             text = self.ylabels[f],
                             fontName = self.labelFontName,
                             fontSize = self.labelFontSize,
                             fillColor=_PCMYK_black,
                             x = self.x-self.labelOffset,
                             y = self.y+(f*self.gridDivWidth+(self.gridDivWidth-ascent)/2.0),
                             textAnchor = 'end'))

        #do x-labels
        if self.xlabels != None:
            for f in range (0,len(self.xlabels)):
                if self.xlabels[f]!= None:
                    l=Label()
                    l.x=self.x+(f*self.gridDivWidth)+(self.gridDivWidth+ascent)/2.0
                    l.y=self.y+(len(self.ylabels)*self.gridDivWidth)+self.labelOffset
                    l.angle=90
                    l.textAnchor='start'
                    l.fontName = self.labelFontName
                    l.fontSize = self.labelFontSize
                    l.fillColor = _PCMYK_black
                    l.setText(self.xlabels[f])
                    l.boxAnchor = 'sw'
                    l.draw()
                    g.add(l)

        return g




if __name__ == "__main__":
    d = DotBox()
    d.demo().save(fnRoot="dotbox")

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