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import sys
class AbstractGradientBrush(object):
""" Abstract base class for gradient brushes so they can be detected easily.
"""
def IsOk(self):
return True
def bbox_transform(self, gc, bbox):
""" Apply a transformation to make the bbox a unit square.
"""
x0, y0, w, h = bbox
if sys.platform == 'darwin':
gc.concat_ctm(((w, 0, 0), (0, h, 0), (x0, y0, 1)))
else:
gc.concat_ctm((w,0,0,h,x0,y0))
class NullRenderer(object):
NullBrush = None
NullGraphicsBrush = None
NullPen = None
TransparentPen = None
caps = {
'butt':None,
'round':None,
'square':None
}
joins = {
'miter':None,
'round':None,
'bevel':None
}
fill_rules = {'nonzero':None, 'evenodd': None}
def __init__(self):
pass
@classmethod
def concatTransform(cls, gc, matrix):
raise NotImplemented()
@classmethod
def createAffineMatrix(cls, a,b,c,d,x,y):
raise NotImplemented()
@classmethod
def createBrush(cls, color_tuple):
raise NotImplemented()
@classmethod
def createNativePen(cls, pen):
raise NotImplemented()
@classmethod
def createPen(cls, color_tuple):
raise NotImplemented()
@classmethod
def createLinearGradientBrush(cls, x1,y1,x2,y2, stops, spreadMethod='pad',
transforms=None, units='userSpaceOnUse'):
raise NotImplemented()
@classmethod
def createRadialGradientBrush(cls, cx,cy, r, stops, fx=None,fy=None,
spreadMethod='pad', transforms=None,
units='userSpaceOnUse'):
raise NotImplemented()
@classmethod
def getFont(cls, font_name='Arial'):
raise NotImplemented()
@classmethod
def makeMatrix(cls, *args):
raise NotImplemented()
@classmethod
def makePath(cls):
raise NotImplemented()
@classmethod
def popState(cls, gc):
raise NotImplemented()
@classmethod
def pushState(cls, gc):
raise NotImplemented()
@classmethod
def setFontSize(cls, font, size):
raise NotImplemented()
@classmethod
def setFontStyle(cls, font, style):
raise NotImplemented()
@classmethod
def setFontWeight(cls, font, weight):
raise NotImplemented()
@classmethod
def setFont(cls, gc, font, brush):
raise NotImplemented()
@classmethod
def setBrush(cls, gc, brush):
raise NotImplemented()
@classmethod
def setPenDash(cls, pen, dasharray, offset):
raise NotImplemented()
@classmethod
def setPen(cls, gc, pen):
raise NotImplemented()
@classmethod
def strokePath(cls, gc, path):
raise NotImplemented()
@classmethod
def fillPath(cls, gc, path, mode):
raise NotImplemented()
@classmethod
def gradientPath(cls, gc, path, brush):
raise NotImplemented()
@classmethod
def clipPath(cls, gc, path):
raise NotImplemented()
@classmethod
def translate(cls, gc, *args):
raise NotImplemented()
@classmethod
def rotate(cls, gc, angle):
raise NotImplemented()
@classmethod
def scale(cls, gc, sx, sy):
raise NotImplemented()
@classmethod
def GetTextExtent(cls, gc, text):
raise NotImplemented()
@classmethod
def DrawText(cls, gc, text, x, y, brush, anchor='start'):
""" Draw text at the given x,y position with the color of the
given brush.
"""
raise NotImplemented()
@classmethod
def DrawImage(cls, gc, image, x, y, width, height):
raise NotImplemented()
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