class TeX1():
"""
Render TeX code with matplotlib mathtext. Doesn't need a LaTeX installation.
@enocde ........ Enocde base64
@init_render ... Render the PNG image when creating an instance.
"""
def __init__(self, src, encode = False, cfg = fs()):
self.cfg = copy(cfg)
self.src = src
self.encode = encode
self.png = None
if self.cfg.initrender:
self.render(self.cfg)
def render(self, cfg):
self.mtp = MathTextParser('bitmap')
f = StringIO()
self.mtp.to_png(f, self.src, cfg.forecolor, cfg.resolution, cfg.fontsize)
bin_data = f.getvalue()
if self.encode:
bin_data = encodestring(bin_data)
self.png = bin_data
f.close()
def _repr_png_(self):
return self.png
class TeX1():
"""
Render TeX code with matplotlib mathtext. Doesn't need a LaTeX installation.
@texstr ........ TeX code as string
@color ......... Font color
@dpi ........... Resolution (dots per inch)
@fontsize ...... Font size
@enocde ........ Enocde base64
@init_render ... Render the PNG image when creating an instance.
If 'False' one has to call the render method explicitly.
"""
def __init__(self, texstr, color = 'black', dpi = 120, fontsize = 12,
encode=False, init_render = True):
self.texstr = texstr
self.color = color
self.dpi = dpi
self.fontsize = fontsize
self.encode = encode
self.init_render = init_render
self.png = None
if self.init_render:
self.render()
def render(self):
self.mtp = MathTextParser('bitmap')
f = StringIO()
self.mtp.to_png(f, self.texstr, self.color, self.dpi, self.fontsize)
bin_data = f.getvalue()
if self.encode:
bin_data = encodestring(bin_data)
self.png = bin_data
f.close()
def set_texstr(self, texstr):
self.texstr = texstr
self.render()
def set_color(self, color):
self.color = color
self.render()
def set_dpi(self, dpi):
self.dpi = dpi
self.render()
def set_fontsize(self, fontsize):
self.fontsize = fontsize
self.render()
def set_encode(self, encode):
self.encode = encode
self.render()
def _repr_png_(self):
return self.png
class TeX1():
"""
Render TeX code with matplotlib mathtext. Doesn't need a LaTeX installation.
@texstr ........ TeX code as string
@color ......... Font color
@dpi ........... Resolution (dots per inch)
@fontsize ...... Font size
@enocde ........ Enocde base64
@init_render ... Render the PNG image when creating an instance.
If 'False' one has to call the render method explicitly.
"""
def __init__(self, texstr, color = 'black', dpi = 120, fontsize = 12,
encode=False, init_render = True):
self.texstr = texstr
self.color = color
self.dpi = dpi
self.fontsize = fontsize
self.encode = encode
self.init_render = init_render
self.png = None
if self.init_render:
self.render()
def render(self):
self.mtp = MathTextParser('bitmap')
f = StringIO()
self.mtp.to_png(f, self.texstr, self.color, self.dpi, self.fontsize)
bin_data = f.getvalue()
if self.encode:
bin_data = encodestring(bin_data)
self.png = bin_data
f.close()
def set_texstr(self, texstr):
self.texstr = texstr
self.render()
def set_color(self, color):
self.color = color
self.render()
def set_dpi(self, dpi):
self.dpi = dpi
self.render()
def set_fontsize(self, fontsize):
self.fontsize = fontsize
self.render()
def set_encode(self, encode):
self.encode = encode
self.render()
def _repr_png_(self):
return self.png
def updateShape(self):
try:
self.bitmapName = './tmp/tex_bmp_' + str(self.uid) + '.png'
q = MathTextParser('Bitmap')
q.to_png(self.bitmapName, self.parameter['LaTex'].value)
self.png = QPixmap(self.bitmapName)
except:
print ('>>> ERROR ImageLaTex.updateShape')
print (' Syntax Error - chyba pri update/parsovani LaTex retazca alebo renedrovani')
print (' obrazku ' + self.bitmapName)
self.png = QPixmap(self.path + '/img/error_tex_format.png')
