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#Copyright ReportLab Europe Ltd. 2000-2004
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#see license.txt for license details
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#history http://www.reportlab.co.uk/cgi-bin/viewcvs.cgi/public/reportlab/trunk/reportlab/graphics/renderPS.py
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__version__=''' $Id$ '''
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from reportlab.pdfbase.pdfmetrics import getFont, stringWidth # for font info
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from reportlab.lib.utils import fp_str, getStringIO
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from reportlab.lib.colors import black
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from reportlab.graphics.renderbase import StateTracker, getStateDelta
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from reportlab.graphics.shapes import STATE_DEFAULTS
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from types import StringType
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from operator import getitem
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from reportlab import rl_config
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# we need to create encoding vectors for each font we use, or they will
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# come out in Adobe's old StandardEncoding, which NOBODY uses.
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PS_WinAnsiEncoding="""
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currentdict dup length dict begin
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1 index /FID ne { def } { pop pop } ifelse
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/FontName exch def dup length 0 ne { %if
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/Encoding Encoding 256 array copy def
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dup type /nametype eq { %ifelse
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Encoding 2 index 2 index put
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currentdict dup end end
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/FontName get exch definefont pop
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39/quotesingle 96/grave 128/euro 130/quotesinglbase/florin/quotedblbase
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/ellipsis/dagger/daggerdbl/circumflex/perthousand
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/Scaron/guilsinglleft/OE 145/quoteleft/quoteright
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/quotedblleft/quotedblright/bullet/endash/emdash
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/tilde/trademark/scaron/guilsinglright/oe/dotlessi
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159/Ydieresis 164/currency 166/brokenbar 168/dieresis/copyright
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/ordfeminine 172/logicalnot 174/registered/macron/ring
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177/plusminus/twosuperior/threesuperior/acute/mu
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183/periodcentered/cedilla/onesuperior/ordmasculine
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188/onequarter/onehalf/threequarters 192/Agrave/Aacute
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/Acircumflex/Atilde/Adieresis/Aring/AE/Ccedilla
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/Egrave/Eacute/Ecircumflex/Edieresis/Igrave/Iacute
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/Icircumflex/Idieresis/Eth/Ntilde/Ograve/Oacute
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/Ocircumflex/Otilde/Odieresis/multiply/Oslash
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/Ugrave/Uacute/Ucircumflex/Udieresis/Yacute/Thorn
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/germandbls/agrave/aacute/acircumflex/atilde/adieresis
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/aring/ae/ccedilla/egrave/eacute/ecircumflex
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/edieresis/igrave/iacute/icircumflex/idieresis
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/eth/ntilde/ograve/oacute/ocircumflex/otilde
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/odieresis/divide/oslash/ugrave/uacute/ucircumflex
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/udieresis/yacute/thorn/ydieresis
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def __init__(self,size=(300,300), PostScriptLevel=2):
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self.width, self.height = size
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self._strokeColor = self._fillColor = self._lineWidth = \
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self._font = self._fontSize = self._lineCap = \
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self._lineJoin = self._color = None
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self._fontsUsed = [] # track them as we go
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self.setFont(STATE_DEFAULTS['fontName'],STATE_DEFAULTS['fontSize'])
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self.setStrokeColor(STATE_DEFAULTS['strokeColor'])
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self.PostScriptLevel=PostScriptLevel
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def comment(self,msg):
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self.code.append('%'+msg)
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def drawImage(self, image, x1,y1, x2=None,y2=None): # Postscript Level2 version
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# select between postscript level 1 or level 2
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if PostScriptLevel==1:
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self._drawImageLevel1(image, x1,y1, x2=None,y2=None)
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elif PostScriptLevel == 2 :
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self._drawImageLevel2(image, x1,y1, x2=None,y2=None)
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raise 'PostScriptLevelException'
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self.code.append('showpage') # ugh, this makes no sense oh well.
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def save(self,f=None):
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if not hasattr(f,'write'):
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if self.code[-1]!='showpage': self.clear()
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self.code.insert(0,'''\
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%%!PS-Adobe-3.0 EPSF-3.0
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%%%%BoundingBox: 0 0 %d %d
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/c {curveto} bind def
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''' % (self.width,self.height, PS_WinAnsiEncoding))
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# for each font used, reencode the vectors
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for fontName in self._fontsUsed:
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fontReencode.append('WinAnsiEncoding /%s /%s RE' % (fontName, fontName))
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self.code.insert(1, string.join(fontReencode, self._sep))
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file.write(string.join(self.code,self._sep))
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from reportlab.lib.utils import markfilename
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markfilename(f,creatorcode='XPR3',filetype='EPSF')
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self.code.append('gsave')
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def restoreState(self):
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self.code.append('grestore')
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def stringWidth(self, s, font=None, fontSize=None):
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"""Return the logical width of the string if it were drawn
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in the current font (defaults to self.font)."""
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font = font or self._font
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fontSize = fontSize or self._fontSize
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return stringWidth(s, font, fontSize)
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def setLineCap(self,v):
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self.code.append('%d setlinecap'%v)
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def setLineJoin(self,v):
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if self._lineJoin!=v:
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self.code.append('%d setlinejoin'%v)
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def setDash(self, array=[], phase=0):
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"""Two notations. pass two numbers, or an array and phase"""
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# copied and modified from reportlab.canvas
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psoperation = "setdash"
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if type(array) == types.IntType or type(array) == types.FloatType:
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self._code.append('[%s %s] 0 %s' % (array, phase, psoperation))
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elif type(array) == types.ListType or type(array) == types.TupleType:
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assert phase >= 0, "phase is a length in user space"
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textarray = string.join(map(str, array))
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self.code.append('[%s] %s %s' % (textarray, phase, psoperation))
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def setStrokeColor(self, color):
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self._strokeColor = color
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def setColor(self, color):
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if self._color!=color:
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if hasattr(color, "cyan"):
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self.code.append('%s setcmykcolor' % fp_str(color.cyan, color.magenta, color.yellow, color.black))
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self.code.append('%s setrgbcolor' % fp_str(color.red, color.green, color.blue))
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def setFillColor(self, color):
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self._fillColor = color
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def setLineWidth(self, width):
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if width != self._lineWidth:
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self._lineWidth = width
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self.code.append('%s setlinewidth' % width)
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def setFont(self,font,fontSize,leading=None):
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if self._font!=font or self._fontSize!=fontSize:
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self._fontCodeLoc = len(self.code)
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self._fontSize = fontSize
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def line(self, x1, y1, x2, y2):
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if self._strokeColor != None:
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self.code.append('%s m %s l stroke' % (fp_str(x1, y1), fp_str(x2, y2)))
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def _escape(self, s):
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return a copy of string s with special characters in postscript strings
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escaped with backslashes.
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Have not handled characters that are converted normally in python strings
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str = string.replace(s, chr(0x5C), r'\\' )
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str = string.replace(str, '(', '\(' )
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str = string.replace(str, ')', '\)')
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def drawString(self, x, y, s, angle=0):
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if self._fillColor != None:
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if not self.code[self._fontCodeLoc]:
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psName = getFont(self._font).face.name
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self.code[self._fontCodeLoc]='(%s) findfont %s scalefont setfont' % (psName,fp_str(self._fontSize))
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if psName not in self._fontsUsed:
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self._fontsUsed.append(psName)
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self.setColor(self._fillColor)
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## before inverting...
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## if angle == 0 : # do special case of angle = 0 first. Avoids a bunch of gsave/grestore ops
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## self.code.append('%s m 1 -1 scale (%s) show 1 -1 scale' % (fp_str(x,y),s))
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## else : # general case, rotated text
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## self.code.append('gsave %s %s translate %s rotate' % (x,y,angle))
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## self.code.append('0 0 m 1 -1 scale (%s) show' % s)
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## self.code.append('grestore')
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if angle == 0 : # do special case of angle = 0 first. Avoids a bunch of gsave/grestore ops
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self.code.append('%s m (%s) show ' % (fp_str(x,y),s))
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else : # general case, rotated text
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self.code.append('gsave %s %s translate %s rotate' % (x,y,angle))
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self.code.append('0 0 m (%s) show' % s)
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self.code.append('grestore')
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def drawCentredString(self, x, y, text, text_anchor='middle'):
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if self.fillColor is not None:
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textLen = stringWidth(text, self._font,self._fontSize)
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if text_anchor=='end':
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elif text_anchor=='middle':
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self.drawString(x,y,text)
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def drawRightString(self, text, x, y):
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self.drawCentredString(text,x,y,text_anchor='end')
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def drawCurve(self, x1, y1, x2, y2, x3, y3, x4, y4, closed=0):
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codeline = '%s m %s curveto'
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data = (fp_str(x1, y1), fp_str(x2, y2, x3, y3, x4, y4))
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if self._fillColor != None:
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self.setColor(self._fillColor)
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self.code.append((codeline % data) + ' eofill')
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if self._strokeColor != None:
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self.setColor(self._strokeColor)
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self.code.append((codeline % data)
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+ ((closed and ' closepath') or '')
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########################################################################################
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def rect(self, x1,y1, x2,y2, stroke=1, fill=1):
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"Draw a rectangle between x1,y1, and x2,y2"
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# Path is drawn in counter-clockwise direction"
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x1, x2 = min(x1,x2), max(x1, x2) # from piddle.py
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y1, y2 = min(y1,y2), max(y1, y2)
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self.polygon(((x1,y1),(x2,y1),(x2,y2),(x1,y2)), closed=1, stroke=stroke, fill = fill)
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def roundRect(self, x1,y1, x2,y2, rx=8, ry=8):
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"""Draw a rounded rectangle between x1,y1, and x2,y2,
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with corners inset as ellipses with x radius rx and y radius ry.
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These should have x1<x2, y1<y2, rx>0, and ry>0."""
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# Path is drawn in counter-clockwise direction
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x1, x2 = min(x1,x2), max(x1, x2) # from piddle.py
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y1, y2 = min(y1,y2), max(y1, y2)
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# Note: arcto command draws a line from current point to beginning of arc
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# save current matrix, translate to center of ellipse, scale by rx ry, and draw
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# a circle of unit radius in counterclockwise dir, return to original matrix
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# arguments are (cx, cy, rx, ry, startAngle, endAngle)
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ellipsePath = 'matrix currentmatrix %s %s translate %s %s scale 0 0 1 %s %s arc setmatrix'
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# choice between newpath and moveTo beginning of arc
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# go with newpath for precision, does this violate any assumptions in code???
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rrCode = ['newpath'] # Round Rect code path
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# upper left corner ellipse is first
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rrCode.append(ellipsePath % (x1+rx, y1+ry, rx, -ry, 90, 180))
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rrCode.append(ellipsePath % (x1+rx, y2-ry, rx, -ry, 180, 270))
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rrCode.append(ellipsePath % (x2-rx, y2-ry, rx, -ry, 270, 360))
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rrCode.append(ellipsePath % (x2-rx, y1+ry, rx, -ry, 0, 90) )
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rrCode.append('closepath')
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self._fillAndStroke(rrCode)
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def ellipse(self, x1,y1, x2,y2):
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"""Draw an orthogonal ellipse inscribed within the rectangle x1,y1,x2,y2.
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These should have x1<x2 and y1<y2."""
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#Just invoke drawArc to actually draw the ellipse
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self.drawArc(x1,y1, x2,y2)
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def circle(self, xc, yc, r):
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self.ellipse(xc-r,yc-r, xc+r,yc+r)
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def drawArc(self, x1,y1, x2,y2, startAng=0, extent=360, fromcenter=0):
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"""Draw a partial ellipse inscribed within the rectangle x1,y1,x2,y2,
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starting at startAng degrees and covering extent degrees. Angles
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start with 0 to the right (+x) and increase counter-clockwise.
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These should have x1<x2 and y1<y2."""
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#calculate centre of ellipse
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#print "x1,y1,x2,y2,startAng,extent,fromcenter", x1,y1,x2,y2,startAng,extent,fromcenter
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cx, cy = (x1+x2)/2.0, (y1+y2)/2.0
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rx, ry = (x2-x1)/2.0, (y2-y1)/2.0
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codeline = self._genArcCode(x1, y1, x2, y2, startAng, extent)
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startAngleRadians = math.pi*startAng/180.0
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extentRadians = math.pi*extent/180.0
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endAngleRadians = startAngleRadians + extentRadians
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if self._fillColor != None:
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self.setColor(self._fillColor)
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self.code.append(codeline)
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if self._strokeColor!=None: self.code.append('gsave')
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self.code.append('eofill')
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if self._strokeColor!=None: self.code.append('grestore')
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if self._strokeColor != None:
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# this is a bit hacked up. There is certainly a better way...
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self.setColor(self._strokeColor)
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(startx, starty) = (cx+rx*math.cos(startAngleRadians), cy+ry*math.sin(startAngleRadians))
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if not codelineAppended:
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self.code.append(codeline)
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self.lineTo(startx, starty)
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self.code.append('closepath')
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self.code.append('stroke')
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def _genArcCode(self, x1, y1, x2, y2, startAng, extent):
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"Calculate the path for an arc inscribed in rectangle defined by (x1,y1),(x2,y2)"
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#calculate semi-minor and semi-major axes of ellipse
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xScale = abs((x2-x1)/2.0)
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yScale = abs((y2-y1)/2.0)
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#calculate centre of ellipse
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x, y = (x1+x2)/2.0, (y1+y2)/2.0
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codeline = 'matrix currentmatrix %s %s translate %s %s scale 0 0 1 %s %s %s setmatrix'
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data = (x,y, xScale, yScale, startAng, startAng+extent, arc)
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return codeline % data
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def polygon(self, p, closed=0, stroke=1, fill=1):
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assert len(p) >= 2, 'Polygon must have 2 or more points'
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polyCode.append("%s m" % fp_str(start))
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polyCode.append("%s l" % fp_str(point))
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polyCode.append("closepath")
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self._fillAndStroke(polyCode,stroke=stroke,fill=fill)
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def lines(self, lineList, color=None, width=None):
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if self._strokeColor != None:
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self._setColor(self._strokeColor)
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codeline = '%s m %s l stroke'
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for line in lineList:
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self.code.append(codeline % (fp_str(line[0]),fp_str(line[1])))
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def moveTo(self,x,y):
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self.code.append('%s m' % fp_str(x, y))
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def lineTo(self,x,y):
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self.code.append('%s l' % fp_str(x, y))
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def curveTo(self,x1,y1,x2,y2,x3,y3):
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self.code.append('%s c' % fp_str(x1,y1,x2,y2,x3,y3))
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self.code.append('closepath')
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def polyLine(self, p):
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assert len(p) >= 1, 'Polyline must have 1 or more points'
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if self._strokeColor != None:
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self.setColor(self._strokeColor)
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self.moveTo(p[0][0], p[0][1])
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self.lineTo(t[0], t[1])
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self.code.append('stroke')
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def drawFigure(self, partList, closed=0):
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for part in partList:
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args = list(part[1:])
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figureCode.append("%s m" % fp_str(args[:2]))
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figureCode.append("%s l" % fp_str(args[:2]))
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figureCode.append("%s l" % fp_str(args[2:]))
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elif op == figureArc:
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x1,y1,x2,y2,startAngle,extent = args[:6]
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figureCode.append(self._genArcCode(x1,y1,x2,y2,startAngle,extent))
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elif op == figureCurve:
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figureCode.append("%s m" % fp_str(args[:2]))
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figureCode.append("%s l" % fp_str(args[:2]))
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figureCode.append("%s curveto" % fp_str(args[2:]))
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raise TypeError, "unknown figure operator: "+op
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figureCode.append("closepath")
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self._fillAndStroke(figureCode)
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def _fillAndStroke(self,code,clip=0,fill=1,stroke=1):
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fill = self._fillColor and fill
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stroke = self._strokeColor and stroke
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if fill or stroke or clip:
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self.code.extend(code)
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if stroke or clip: self.code.append("gsave")
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self.setColor(self._fillColor)
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self.code.append("eofill")
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if stroke or clip: self.code.append("grestore")
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if clip: self.code.append("gsave")
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self.setColor(self._strokeColor)
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self.code.append("stroke")
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if clip: self.code.append("grestore")
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self.code.append("clip")
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self.code.append("newpath")
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def translate(self,x,y):
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self.code.append('%s translate' % fp_str(x,y))
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self.code.append('%s scale' % fp_str(x,y))
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def transform(self,a,b,c,d,e,f):
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self.code.append('[%s] concat' % fp_str(a,b,c,d,e,f))
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def _drawTimeResize(self,w,h):
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'''if this is used we're probably in the wrong world'''
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self.width, self.height = w, h
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############################################################################################
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# drawImage(self. image, x1, y1, x2=None, y2=None) is now defined by either _drawImageLevel1
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# ._drawImageLevel2, the choice is made in .__init__ depending on option
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def _drawImageLevel1(self, image, x1, y1, x2=None,y2=None):
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# Postscript Level1 version available for fallback mode when Level2 doesn't work
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"""drawImage(self,image,x1,y1,x2=None,y2=None) : If x2 and y2 are ommitted, they are
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calculated from image size. (x1,y1) is upper left of image, (x2,y2) is lower right of
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image in piddle coordinates."""
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# For now let's start with 24 bit RGB images (following piddlePDF again)
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print "Trying to drawImage in piddlePS"
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myimage = image.convert('RGB')
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imgwidth, imgheight = myimage.size
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print 'Image size (%d, %d); Draw size (%d, %d)' % (imgwidth, imgheight, drawwidth, drawheight)
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# now I need to tell postscript how big image is
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# "image operators assume that they receive sample data from
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# their data source in x-axis major index order. The coordinate
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# of the lower-left corner of the first sample is (0,0), of the
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# second (1,0) and so on" -PS2 ref manual p. 215
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# The ImageMatrix maps unit squre of user space to boundary of the source image
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# The CurrentTransformationMatrix (CTM) maps the unit square of
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# user space to the rect...on the page that is to receive the
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# image. A common ImageMatrix is [width 0 0 -height 0 height]
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# (for a left to right, top to bottom image )
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# first let's map the user coordinates start at offset x1,y1 on page
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'%s %s translate' % (x1,-y1 - drawheight), # need to start are lower left of image
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'%s %s scale' % (drawwidth,drawheight),
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'/scanline %d 3 mul string def' % imgwidth # scanline by multiples of image width
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# now push the dimensions and depth info onto the stack
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# and push the ImageMatrix to map the source to the target rectangle (see above)
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# finally specify source (PS2 pp. 225 ) and by exmample
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'%s %s %s' % (imgwidth, imgheight, component_depth),
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'[%s %s %s %s %s %s]' % (imgwidth, 0, 0, -imgheight, 0, imgheight),
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'{ currentfile scanline readhexstring pop } false 3',
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# data source output--now we just need to deliver a hex encode
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# series of lines of the right overall size can follow
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rawimage = myimage.tostring()
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assert(len(rawimage) == imgwidth*imgheight, 'Wrong amount of data for image')
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#compressed = zlib.compress(rawimage) # no zlib at moment
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hex_encoded = self._AsciiHexEncode(rawimage)
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# write in blocks of 78 chars per line
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outstream = getStringIO(hex_encoded)
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dataline = outstream.read(78)
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while dataline <> "":
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self.code.append(dataline)
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dataline= outstream.read(78)
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self.code.append('% end of image data') # for clarity
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self.code.append('grestore') # return coordinates to normal
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def _AsciiHexEncode(self, input): # also based on piddlePDF
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"Helper function used by images"
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output = getStringIO()
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output.write('%02x' % ord(char))
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return output.getvalue()
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def _drawImageLevel2(self, image, x1,y1, x2=None,y2=None): # Postscript Level2 version
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Image = import_Image()
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### what sort of image are we to draw
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print 'found image.mode= L'
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imBitsPerComponent = 8
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elif image.mode == '1':
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print 'found image.mode= 1'
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myimage = image.convert('L')
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myimage = image.convert('RGB')
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imBitsPerComponent = 8
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imwidth, imheight = myimage.size
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# print 'imwidth = %s, imheight = %s' % myimage.size
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'%s %s translate' % (x1,-y1 - drawheight), # need to start are lower left of image
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'%s %s scale' % (drawwidth,drawheight)])
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if imNumComponents == 3 :
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self.code.append('/DeviceRGB setcolorspace')
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elif imNumComponents == 1 :
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self.code.append('/DeviceGray setcolorspace')
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print 'setting colorspace gray'
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# create the image dictionary
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/Width %d /Height %d %% dimensions of source image
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/BitsPerComponent %d""" % (imwidth, imheight, imBitsPerComponent) )
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if imNumComponents == 1:
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self.code.append('/Decode [0 1]')
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if imNumComponents == 3:
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self.code.append('/Decode [0 1 0 1 0 1] %% decode color values normally')
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self.code.extend([ '/ImageMatrix [%s 0 0 %s 0 %s]' % (imwidth, -imheight, imheight),
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'/DataSource currentfile /ASCIIHexDecode filter',
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'>> % End image dictionary',
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# after image operator just need to dump image dat to file as hexstring
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rawimage = myimage.tostring()
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assert(len(rawimage) == imwidth*imheight, 'Wrong amount of data for image')
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#compressed = zlib.compress(rawimage) # no zlib at moment
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hex_encoded = self._AsciiHexEncode(rawimage)
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# write in blocks of 78 chars per line
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outstream = getStringIO(hex_encoded)
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dataline = outstream.read(78)
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while dataline <> "":
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self.code.append(dataline)
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dataline= outstream.read(78)
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self.code.append('> % end of image data') # > is EOD for hex encoded filterfor clarity
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self.code.append('grestore') # return coordinates to normal
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# renderpdf - draws them onto a canvas
628
from reportlab.graphics import renderPS
629
renderPS.draw(drawing, canvas, x, y)
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Execute the script to see some test drawings."""
632
from renderbase import Renderer
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# hack so we only get warnings once each
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#warnOnce = WarnOnce()
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# the main entry point for users...
638
def draw(drawing, canvas, x=0, y=0, showBoundary=rl_config.showBoundary):
641
R.draw(drawing, canvas, x, y, showBoundary=showBoundary)
643
def _pointsFromList(L):
645
given a list of coordinates [x0, y0, x1, y1....]
646
produce a list of points [(x0,y0), (y1,y0),....]
649
for i in range(0,len(L),2):
650
P.append((L[i],L[i+1]))
653
class _PSRenderer(Renderer):
654
"""This draws onto a EPS document. It needs to be a class
655
rather than a function, as some EPS-specific state tracking is
656
needed outside of the state info in the SVG model."""
659
self._tracker = StateTracker()
661
def drawNode(self, node):
662
"""This is the recursive method called for each node
664
self._canvas.comment('begin node %s'%`node`)
665
color = self._canvas._color
666
if not (isinstance(node, Path) and node.isClipPath):
667
self._canvas.saveState()
670
deltas = getStateDelta(node)
671
self._tracker.push(deltas)
672
self.applyStateChanges(deltas, {})
674
#draw the object, or recurse
675
self.drawNodeDispatcher(node)
677
rDeltas = self._tracker.pop()
678
if not (isinstance(node, Path) and node.isClipPath):
679
self._canvas.restoreState()
680
self._canvas.comment('end node %s'%`node`)
681
self._canvas._color = color
683
#restore things we might have lost (without actually doing anything).
684
for k, v in rDeltas.items():
685
if self._restores.has_key(k):
686
setattr(self._canvas,self._restores[k],v)
688
## _restores = {'stroke':'_stroke','stroke_width': '_lineWidth','stroke_linecap':'_lineCap',
689
## 'stroke_linejoin':'_lineJoin','fill':'_fill','font_family':'_font',
690
## 'font_size':'_fontSize'}
691
_restores = {'strokeColor':'_strokeColor','strokeWidth': '_lineWidth','strokeLineCap':'_lineCap',
692
'strokeLineJoin':'_lineJoin','fillColor':'_fillColor','fontName':'_font',
693
'fontSize':'_fontSize'}
695
def drawRect(self, rect):
696
if rect.rx == rect.ry == 0:
700
rect.x+rect.width, rect.y+rect.height)
702
#cheat and assume ry = rx; better to generalize
703
#pdfgen roundRect function. TODO
704
self._canvas.roundRect(
706
rect.x+rect.width, rect.y+rect.height, rect.rx, rect.ry
709
def drawLine(self, line):
710
if self._canvas._strokeColor:
711
self._canvas.line(line.x1, line.y1, line.x2, line.y2)
713
def drawCircle(self, circle):
714
self._canvas.circle( circle.cx, circle.cy, circle.r)
716
def drawWedge(self, wedge):
717
yradius, radius1, yradius1 = wedge._xtraRadii()
718
if (radius1==0 or radius1 is None) and (yradius1==0 or yradius1 is None):
719
startangledegrees = wedge.startangledegrees
720
endangledegrees = wedge.endangledegrees
721
centerx= wedge.centerx
722
centery = wedge.centery
723
radius = wedge.radius
724
extent = endangledegrees - startangledegrees
725
self._canvas.drawArc(centerx-radius, centery-yradius, centerx+radius, centery+yradius,
726
startangledegrees, extent, fromcenter=1)
728
self.drawPolygon(wedge.asPolygon())
730
def drawPolyLine(self, p):
731
if self._canvas._strokeColor:
732
self._canvas.polyLine(_pointsFromList(p.points))
734
def drawEllipse(self, ellipse):
735
#need to convert to pdfgen's bounding box representation
736
x1 = ellipse.cx - ellipse.rx
737
x2 = ellipse.cx + ellipse.rx
738
y1 = ellipse.cy - ellipse.ry
739
y2 = ellipse.cy + ellipse.ry
740
self._canvas.ellipse(x1,y1,x2,y2)
742
def drawPolygon(self, p):
743
self._canvas.polygon(_pointsFromList(p.points), closed=1)
745
def drawString(self, stringObj):
746
if self._canvas._fillColor:
747
S = self._tracker.getState()
748
text_anchor, x, y, text = S['textAnchor'], stringObj.x,stringObj.y,stringObj.text
749
if not text_anchor in ['start','inherited']:
750
font, fontSize = S['fontName'], S['fontSize']
751
textLen = stringWidth(text, font,fontSize)
752
if text_anchor=='end':
754
elif text_anchor=='middle':
757
raise ValueError, 'bad value for text_anchor '+str(text_anchor)
758
self._canvas.drawString(x,y,text)
760
def drawPath(self, path):
761
from reportlab.graphics.shapes import _renderPath
763
drawFuncs = (c.moveTo, c.lineTo, c.curveTo, c.closePath)
764
isClosed = _renderPath(path, drawFuncs)
767
c._fillAndStroke([], clip=path.isClipPath)
769
def applyStateChanges(self, delta, newState):
770
"""This takes a set of states, and outputs the operators
771
needed to set those properties"""
772
for key, value in delta.items():
773
if key == 'transform':
774
self._canvas.transform(value[0], value[1], value[2],
775
value[3], value[4], value[5])
776
elif key == 'strokeColor':
777
#this has different semantics in PDF to SVG;
778
#we always have a color, and either do or do
779
#not apply it; in SVG one can have a 'None' color
780
self._canvas.setStrokeColor(value)
781
elif key == 'strokeWidth':
782
self._canvas.setLineWidth(value)
783
elif key == 'strokeLineCap': #0,1,2
784
self._canvas.setLineCap(value)
785
elif key == 'strokeLineJoin':
786
self._canvas.setLineJoin(value)
787
elif key == 'strokeDashArray':
789
self._canvas.setDash(value)
791
self._canvas.setDash()
792
## elif key == 'stroke_opacity':
793
## warnOnce('Stroke Opacity not supported yet')
794
elif key == 'fillColor':
795
#this has different semantics in PDF to SVG;
796
#we always have a color, and either do or do
797
#not apply it; in SVG one can have a 'None' color
798
self._canvas.setFillColor(value)
799
## elif key == 'fill_rule':
800
## warnOnce('Fill rules not done yet')
801
## elif key == 'fill_opacity':
802
## warnOnce('Fill opacity not done yet')
803
elif key in ['fontSize', 'fontName']:
804
# both need setting together in PDF
805
# one or both might be in the deltas,
806
# so need to get whichever is missing
807
fontname = delta.get('fontName', self._canvas._font)
808
fontsize = delta.get('fontSize', self._canvas._fontSize)
809
self._canvas.setFont(fontname, fontsize)
811
def drawToFile(d,fn, showBoundary=rl_config.showBoundary):
812
c = PSCanvas((d.width,d.height))
813
draw(d, c, 0, 0, showBoundary=showBoundary)
816
def drawToString(d, showBoundary=rl_config.showBoundary):
817
"Returns a PS as a string in memory, without touching the disk"
819
drawToFile(d, s, showBoundary=showBoundary)
822
#########################################################
824
# test code. First, defin a bunch of drawings.
825
# Routine to draw them comes at the end.
827
#########################################################
828
def test(outdir='epsout'):
830
# print all drawings and their doc strings from the test
832
if not os.path.isdir(outdir):
834
#grab all drawings from the test module
838
for funcname in dir(testshapes):
839
#if funcname[0:11] == 'getDrawing2':
840
# print 'hacked to only show drawing 2'
841
if funcname[0:10] == 'getDrawing':
842
drawing = eval('testshapes.' + funcname + '()') #execute it
843
docstring = eval('testshapes.' + funcname + '.__doc__')
844
drawings.append((drawing, docstring))
847
for (d, docstring) in drawings:
848
filename = outdir + os.sep + 'renderPS_%d.eps'%i
849
drawToFile(d,filename)
850
print 'saved', filename
853
if __name__=='__main__':
added
removed
bin/reportlab/graphics/renderPS.py
