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# ===-- __init__.py -------------------------------------------------------===##
#
# The KLEE Symbolic Virtual Machine
#
# This file is distributed under the University of Illinois Open Source
# License. See LICENSE.TXT for details.
#
# ===----------------------------------------------------------------------===##
from __future__ import division
###
import math, os, random
from Graphics.Geometry import vec2
from reportlab.pdfgen import canvas
#from reportlab.graphics import shapes
from reportlab.pdfbase import pdfmetrics
"""
class Canvas:
def startDrawing(self, (w,h)):
def endDrawing(self):
def getAspect(self):
def setColor(self, r, g, b):
def setLineWidth(self, width):
def drawOutlineBox(self, x0, y0, x1, y1):
def drawFilledBox(self, x0, y0, x1, y1):
def drawFilledPolygon(self, pts):
def drawOutlineCircle(self, x, y, r):
def startDrawPoints(self):
def endDrawPoints(self):
def drawPoint(self, x, y):
def setPointSize(self, size):
def drawLine(self, a, b):
def drawLines(self, ptPairs):
def drawLineStrip(self, pts):
def pushTransform(self):
def popTransform(self):
def translate(self, x, y):
def scale(self, x, y):
def setFontSize(self, size):
def drawString(self, (x, y), text):
"""
class BaseCanvas:
def drawPoints(self, pts):
self.startDrawPoints()
for pt in pts:
self.drawPoint(pt)
self.endDrawPoints()
def drawStringCentered(self, boxLL, boxUR, text):
ll,ur = self.getStringBBox(text)
stringSize = vec2.sub(ur,ll)
boxSize = vec2.sub(boxUR,boxLL)
deltaSize = vec2.sub(boxSize, stringSize)
halfDeltaSize = vec2.mulN(deltaSize, .5)
self.drawString(vec2.add(boxLL,halfDeltaSize), text)
def getStringSize(self, string):
ll,ur = self.getStringBBox(string)
return vec2.sub(ur,ll)
class PdfCanvas(BaseCanvas):
def __init__(self, name, basePos=(300,400), baseScale=(250,250), pageSize=None):
self._font = 'Times-Roman'
self.c = canvas.Canvas(name, pagesize=pageSize)
self.pointSize = 1
self.scaleX = self.scaleY = 1
self.state = []
self.basePos = tuple(basePos)
self.baseScale = tuple(baseScale)
self.lastFontSizeSet = None
self.kLineScaleFactor = 1.95
def getAspect(self):
return 1.0,1.0
def startDrawing(self):
self.pointSize = 1
self.scaleX = self.scaleY = 1
self.translate((self.basePos[0] + self.baseScale[0], self.basePos[1] + self.baseScale[1]))
self.scale(self.baseScale)
self.setColor(0,0,0)
self.setLineWidth(1)
self.setPointSize(1)
def finishPage(self):
self.c.showPage()
self.pointSize = 1
self.scaleX = self.scaleY = 1
self.translate((self.basePos[0] + self.baseScale[0], self.basePos[1] + self.baseScale[1]))
self.scale(self.baseScale)
self.setColor(0,0,0)
self.setLineWidth(1)
self.setPointSize(1)
if self.lastFontSizeSet is not None:
self.setFontSize(self.lastFontSizeSet)
def endDrawing(self):
self.c.showPage()
self.c.save()
def setColor(self, r, g, b):
self.c.setStrokeColorRGB(r,g,b)
self.c.setFillColorRGB(r,g,b)
def setLineWidth(self, width):
avgScale = (self.scaleX+self.scaleY)/2
self.c.setLineWidth(width/(self.kLineScaleFactor*avgScale))
def setPointSize(self, size):
avgScale = (self.scaleX+self.scaleY)/2
self.pointSize = size/(4*avgScale)
def drawOutlineBox(self, (x0, y0), (x1, y1)):
self.c.rect(x0, y0, x1-x0, y1-y0, stroke=1, fill=0)
def drawFilledBox(self, (x0, y0), (x1, y1)):
self.c.rect(x0, y0, x1-x0, y1-y0, stroke=0, fill=1)
def drawOutlineCircle(self, (x, y), r):
self.c.circle(x, y, r, stroke=1, fill=0)
def drawFilledCircle(self, (x, y), r):
self.c.circle(x, y, r, stroke=0, fill=1)
def drawFilledPolygon(self, pts):
p = self.c.beginPath()
p.moveTo(*pts[-1])
for x,y in pts:
p.lineTo(x,y)
self.c.drawPath(p, fill=1, stroke=0)
def drawOutlinePolygon(self, pts):
p = self.c.beginPath()
p.moveTo(* pts[0])
for x,y in pts[1:]:
p.lineTo(x,y)
p.close()
self.c.drawPath(p, fill=0, stroke=1)
def startDrawPoints(self):
pass
def endDrawPoints(self):
pass
def drawPoint(self, (x, y)):
self.c.circle(x, y, self.pointSize, stroke=0, fill=1)
def drawLine(self, a, b):
self.drawLines([(a,b)])
def drawLines(self, ptPairs):
p = self.c.beginPath()
for a,b in ptPairs:
p.moveTo(a[0],a[1])
p.lineTo(b[0],b[1])
self.c.drawPath(p)
def drawLineStrip(self, pts):
p = self.c.beginPath()
p.moveTo(pts[0][0],pts[0][1])
for pt in pts[1:]:
p.lineTo(pt[0],pt[1])
self.c.drawPath(p)
def drawBezier(self, (p0,p1,p2,p3)):
self.c.bezier(*(p0+p1+p2+p3))
def pushTransform(self):
self.state.append( (self.scaleX,self.scaleY) )
self.c.saveState()
def popTransform(self):
self.c.restoreState()
self.scaleX,self.scaleY = self.state.pop()
def translate(self, (x, y)):
self.c.translate(x, y)
def rotate(self, angle):
self.c.rotate(angle*180/math.pi)
def scale(self, (x, y)):
self.scaleX *= x
self.scaleY *= y
self.c.scale(x, y)
def setFont(self, fontName):
self._font = {"Symbol":"Symbol",
"Times":"Times-Roman"}.get(fontName,fontName)
def setFontSize(self, size):
self.lastFontSizeSet = size
avgScale = (self.scaleX+self.scaleY)/2
self.fontSize = size/(2*avgScale)
self.c.setFont(self._font, self.fontSize)
# self.c.setFont("Times-Roman", size/(2*avgScale))
def drawString(self, (x, y), text):
self.c.drawString(x, y, text)
def drawOutlineString(self, (x,y), text):
t = self.c.beginText(x, y)
t.setTextRenderMode(1)
t.textLine(text)
t.setTextRenderMode(0)
self.c.drawText(t)
def getStringBBox(self, text):
font = pdfmetrics.getFont(self._font)
width = pdfmetrics.stringWidth(text, self._font, self.fontSize)
ll = (0,0)
ur = (width, (1.0 - font.face.ascent/2048.)*self.fontSize)
ur = (width, (1.0 - font.face.ascent/2048.)*self.fontSize)
return ll,ur
|
