def get_font_size(fontsize,text):
width = 0
for char in text:
width += glyphquery.width(font,glyphquery.glyphName(font,char))
scaling=2000/fontsize #no idea what this is
if args.debug:
print "label '%s' calculated to be %dx%d" % (text,width/scaling,glyphquery.charHeight(font)/scaling)
return(width/scaling,glyphquery.charHeight(font)/scaling)
def get_font_size(fontsize,text):
width = 0
for char in text:
width += glyphquery.width(font,glyphquery.glyphName(font,char))
scaling=2000/fontsize #no idea what this is
if args.debug:
print "label '%s' calculated to be %dx%d" % (text,width/scaling,glyphquery.charHeight(font)/scaling)
return(width/scaling,glyphquery.charHeight(font)/scaling)
def _generalMetadata( self ):
"""Load general meta-data for this font (called via withFont)
Guess the appropriate encoding, query line height,
and character height.
"""
try:
self.encoding = describe.guessEncoding( self.font, self.encoding )
self.lineHeight = glyphquery.lineHeight( self.font )
self.charHeight = glyphquery.charHeight( self.font )
except Exception:
log.error( """Unable to load TrueType font from %r""", self.filename)
raise
def _generalMetadata( self ):
"""Load general meta-data for this font (called via withFont)
Guess the appropriate encoding, query line height,
and character height.
"""
try:
self.encoding = describe.guessEncoding( self.font, self.encoding )
self.lineHeight = glyphquery.lineHeight( self.font )
self.charHeight = glyphquery.charHeight( self.font )
except Exception:
log.error( """Unable to load TrueType font from %r""", self.filename)
raise
def text(pos=(0,0), text="", font=None, height=1.0, align='left', spacing=0.03, rotate=0.0,
scale=1.0, xscale=1.0, yscale=1.0, thickness=None, vertical_spacing=None,
info=False):
# If info == True, the caller wants the additional info such as upper-left, etc.
# In this case we return an instance of the class text_info, with the Polygon as
# an attribute, text_info.Polygon. The main client of this extra info is the text object.
if thickness is not None:
raise AttributeError("Thickness is not allowed in a text shape.")
if scale != 1.0: xscale = yscale = scale
lines = text.split('\n')
while lines[-1] == '\n': # strip off trailing newlines
lines = lines[:-1]
if font is None:
font = "serif"
font = describe.openFont(findFont(font))
try:
fonth = glyphquery.charHeight(font)
except:
fonth = 1000
if fonth == 0: fonth = 1000
try:
desc = glyphquery.charDescent(font) # charDescent may not be present
fontheight = fonth+desc
fontscale = 1./fontheight
descent = fontscale*desc
except:
descent = -0.3*height # approximate value
fontheight = 0.7*fonth
fontscale = 1.3/fontheight
if vertical_spacing is None:
vertical_spacing = height*fontscale*glyphquery.lineHeight(font)
excludef_list = [("ITCEdscr")]
excludec_list = [("FRSCRIPT", "A"), ("jokerman", "O"),
("vivaldii", "O"), ("vivaldii", "Q"),
("vivaldii", "R")]
ptext = []
widths = []
width = 0.0
starts = []
start = 0.0
for line in range(len(lines)):
ptext.append(Polygon())
bb = 0
for newchar in lines[line]:
if newchar == " ":
try:
if a:
bx = a.boundingBox()
bba = bx[1]-bx[0]
bba = min(bba, 700)
bb += bba
except:
pass
continue
n = glyphquery.glyphName(font, newchar)
if n == ".notdef":
print("The character '"+newchar+"' is not supported in the font "+font)
continue
g = glyph.Glyph(n)
c = g.calculateContours(font)
contours = []
for contour in c:
contours.append(glyph.decomposeOutline(contour))
if len(contours[-1]) == 0: contours.pop()
for contour in contours:
pp = 0
for i in range(len(contour)-1):
if (contour[i][0] == contour[i+1][0]) and (contour[i][1] == contour[i+1][1]):
contour.pop(i)
pp += 1
if i+pp >= len(contour)-1: break
def lenctr(contour):
totlen = 0
for j in range(len(contour)-1):
totlen += (vis.vector(contour[j])-vis.vector(contour[j+1])).mag
return totlen
lc = len(contours)
if lc >= 4:
mli = 0
maxl = 0
lengths = []
for i in range(len(contours)):
totlen = lenctr(contours[i])
lengths.append((totlen,i))
if totlen > maxl:
mli = i
maxl = totlen
lengths.sort()
lengths.reverse()
ocontours = []
for ll in lengths:
ocontours.append(contours[ll[1]])
contours = ocontours
indxf = -1
indxc = -1
if (mli > 0 and newchar != "%"):
try: indxf = excludef_list.index(self.font)
except: pass
if indxf == -1:
try: indxc = excludec_list.index((self.font, newchar))
except: pass
if (indxf == -1 and indxc == -1):
maxc = contours.pop(mli)
contours.insert(0, maxc)
a = Polygon(contours[0])
for i in range(1,len(contours)):
b = Polygon(contours[i])
if a.covers(b): a = a - b
elif b.covers(a): a = b - a
else: a = a + b
a.shift(bb - a.boundingBox()[0] ,0)
ptext[line] += a
bx = ptext[line].boundingBox()
bb = bx[1] - bx[0] + spacing*fontheight
newwidth = fontscale*height*(ptext[line].boundingBox()[1]-ptext[line].boundingBox()[0])
widths.append(newwidth)
if newwidth > width: width = newwidth
ptext[line].scale(xscale*fontscale*height, yscale*fontscale*height, 0, 0)
for line in range(len(lines)):
if align == 'left':
ptext[line].shift(-width/2,-line*vertical_spacing)
elif align == 'right':
ptext[line].shift(width/2-widths[line],-line*vertical_spacing)
else:
ptext[line].shift(-widths[line]/2,-line*vertical_spacing)
ptext[line].shift(pos[0], pos[1])
if rotate != 0.0: ptext[line].rotate(rotate)
if line == 0:
shape = ptext[0]
upper_left = vis.vector(ptext[line].boundingBox()[0],ptext[line].boundingBox()[3],0)
upper_right = vis.vector(ptext[line].boundingBox()[1],ptext[line].boundingBox()[3],0)
lower_left = vis.vector(ptext[line].boundingBox()[0],ptext[line].boundingBox()[2],0)
lower_right = vis.vector(ptext[line].boundingBox()[1],ptext[line].boundingBox()[2],0)
else:
shape += ptext[line]
xleft = ptext[line].boundingBox()[0]
xright = ptext[line].boundingBox()[1]
y = ptext[line].boundingBox()[2]
if xleft < upper_left.x:
upper_left.x = xleft
if xright > upper_right.x:
upper_right.x = xright
lower_left = vis.vector(upper_left.x,ptext[line].boundingBox()[2],0)
lower_right = vis.vector(upper_right.x,ptext[line].boundingBox()[2],0)
dy = vis.vector(0,(upper_left.y-lower_left.y)/2-height,0)
shape.shift(0,dy.y)
if not info: return shape
info = text_info()
info.Polygon = shape
info.upper_left = upper_left+dy
info.upper_right = upper_right+dy
info.lower_left = lower_left+dy
info.lower_right = lower_right+dy
if align == 'left':
x = 0
elif align == 'right':
x = -width
elif align == 'center':
x = -0.5*width
info.start = vis.vector(x,0,0)+dy
info.starts = []
for line in range(len(lines)):
if align == 'left':
x = 0
elif align == 'right':
x = -widths[line]
elif align == 'center':
x = -0.5*widths[line]
info.starts.append(vis.vector(x,line*vertical_spacing,0)+dy)
info.width = width
info.widths = widths
info.descent = descent
info.vertical_spacing = vertical_spacing
info.align = align
info.height = height
return info
def convert_text(dict_values, fonts, mtext):
layer = dict_values[8][0][0]
text = ("".join(dict_values[3][0][0])
if 3 in dict_values else "") + dict_values[1][0][0]
xoffset = float(dict_values[10][0][0])
yoffset = float(dict_values[20][0][0])
height = float(dict_values[40][0][0])
rotation = float(
dict_values[50][0][0]) / 180.0 * math.pi if 50 in dict_values else 0
font = fonts[dict_values[7][0][0].lower() if 7 in
dict_values else "standard"]
print("using font", font)
if mtext:
boxwidth = float(dict_values[41][0][0]) if 41 in dict_values else 1
x_scale = 1
attachment = int(dict_values[71][0][0]) if 71 in dict_values else 1
text = re.sub("\\\\[^;]*;", "", text)
text = re.sub("([^\\\\])\\\\P", "\g<1>\\n", text)
spacing_fac = float(dict_values[44][0][0]) if 44 in dict_values else 1
else:
boxwidth = 1 #None raised error
x_scale = float(dict_values[41][0][0]) if 41 in dict_values else 1
xalign = float(
dict_values[11][0][0]
) if 11 in dict_values else None #only used for Horizontal text justification typ == 3
yalign = float(
dict_values[21][0][0]
) if 11 in dict_values else None #only used for Horizontal text justification typ == 3
drawdir = int(
dict_values[71][0][0]
) if 71 in dict_values else 0 #mirroring in X (=2) or Y (=4) direction
h_text_just = int(
dict_values[72][0][0]
) if 72 in dict_values else 0 #0=left 1=center 2=right 3=aligned
v_text_just = int(
dict_values[73][0][0]
) if 73 in dict_values else 3 #0=baseline 1=bottom 2=middle 3=top
spacing_fac = 1
for number, name in [(51, "'oblique angle'")]:
if number in dict_values:
print "INFO: sorry but option ", name, "(", number, ") is not supported yet"
cheight = float(glyphquery.charHeight(font)) / 1.32 #magic number
objects = []
boxwidth /= x_scale * height / cheight
charoff = 0
lineno = 1
lines = [[]]
for n, letter in enumerate(text):
glname = glyphquery.glyphName(font, letter)
glwidth = glyphquery.width(font, glname)
print(glname, glwidth, letter, charoff)
if letter == "\n" or (boxwidth and charoff + glwidth > boxwidth):
lines.append(list())
#charoff = 0 # temprarily deactivated, sets charoff always to 0 else...
lineno += 1
if letter != "\n":
boundaries = [cheight * 10, cheight * 10, 0, 0]
for c in glyph.Glyph(glname).calculateContours(font):
outlines = glyph.decomposeOutline(c, 2)
first = True
lines[-1].append({"layer": layer, "command": "G36*"})
for l in outlines:
org_x = (l[0] + charoff) * x_scale * height / cheight
org_y = l[1] * height / cheight
x = org_x * math.cos(rotation) - org_y * math.sin(
rotation) + xoffset
y = org_x * math.sin(rotation) + org_y * math.cos(
rotation) + yoffset
# changes polarity -> clear holes in fonts
if first and (boundaries[0] < l[0] and l[0] < boundaries[2]
and boundaries[1] < l[1]
and l[1] < boundaries[3]):
lines[-1].pop(
) #pop the last G36; the gerber file is not read correctly if LPC comes within a G36-G37 Block
lines[-1].append({"layer": layer, "command": "%LPC*%"})
lines[-1].append({"layer": layer, "command": "G36*"})
boundaries[0] = min(boundaries[0], l[0])
boundaries[1] = min(boundaries[1], l[1])
boundaries[2] = max(boundaries[2], l[0])
boundaries[3] = max(boundaries[3], l[1])
#x*=scaling#
#y*=scaling#
lines[-1].append({
"layer": layer,
"device": "C,0.001*",
"x": x,
"y": y,
"style": "D02" if first else "D01"
})
first = False
lines[-1].append({"layer": layer, "command": "G37*"})
lines[-1].append({"layer": layer, "command": "%LPD*%"})
charoff += glwidth
#print(lines)#
#respect the alignment (only affects MTEXT. For TEXT it is already considered
if mtext:
spacing = height / 3 * 5 * spacing_fac
textwidth = charoff * x_scale * height / cheight
vertical = int((attachment - 1) / 3) #0=oben 1=mitte 2=unten
horizontal = (attachment - 1) % 3 #0=links 1=mitte 2=rechts
if horizontal == 0: shift_x = 0 #links
elif horizontal == 1: shift_x = -textwidth / 2 #mitte
elif horizontal == 2: shift_x = -textwidth #rechts
lineno = 0
for line_objects in lines:
if vertical == 0: shift_y = -height - (lineno - 1) * spacing #oben
elif vertical == 1:
shift_y = (len(lines) - lineno) * spacing / 2 #mitte
elif vertical == 2:
shift_y = (len(lines) - lineno) * spacing #unten
lineno += 1
for o in line_objects:
if "x" in o: o["x"] += shift_x
if "y" in o: o["y"] += shift_y
for line_objects in lines:
objects.extend(line_objects)
return objects, True
