38 |
# |
# |
39 |
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|
40 |
def init(self): |
def init(self): |
41 |
self.twocolor = hasattr(self,'twocolor') and self.width or 0 |
self.colors = hasattr(self,'colors') and self.colors or 1 |
42 |
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self.__double = 0 |
43 |
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self.__underline = 0 |
44 |
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self.__doubleheight = 0 |
45 |
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self.__bold = 0 |
46 |
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47 |
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def reset(self): |
48 |
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return "\x1B@" |
49 |
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|
50 |
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def formfeed(self): |
51 |
|
return '\n\n\n\n\n\n' |
52 |
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|
53 |
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def beginColor(self, color): |
54 |
|
if self.colors == 1: |
55 |
|
return "" |
56 |
|
else: |
57 |
|
return "\x1Br" + chr(color) |
58 |
|
|
59 |
|
def endColor(self, color): |
60 |
|
if self.colors == 1: |
61 |
|
return "" |
62 |
|
else: |
63 |
|
return "\x1Br\x00" |
64 |
|
|
65 |
|
def beginBold(self): |
66 |
|
self.__bold = 1 |
67 |
|
return self.__setPrintMode() |
68 |
|
|
69 |
|
def endBold(self): |
70 |
|
self.__bold = 0 |
71 |
|
return self.__setPrintMode() |
72 |
|
|
73 |
|
def beginDouble(self): |
74 |
|
self.__double = 1 |
75 |
|
return self.__setPrintMode() |
76 |
|
|
77 |
|
def endDouble(self): |
78 |
|
self.__double = 0 |
79 |
|
return self.__setPrintMode() |
80 |
|
|
81 |
|
def beginDoubleHeight(self): |
82 |
|
self.__doubleheight = 1 |
83 |
|
return self.__setPrintMode() |
84 |
|
|
85 |
|
def endDoubleHeight(self): |
86 |
|
self.__doubleheight = 0 |
87 |
|
return self.__setPrintMode() |
88 |
|
|
89 |
|
def beginUnderline(self): |
90 |
|
self.__underline = 1 |
91 |
|
return self.__setPrintMode() |
92 |
|
|
93 |
|
def endUnderline(self): |
94 |
|
self.__underline = 0 |
95 |
|
return self.__setPrintMode() |
96 |
|
|
97 |
|
def __setPrintMode(self): |
98 |
|
return "\x1B!" + chr(self.__bold * 8 | self.__doubleheight * 16 | \ |
99 |
|
self.__double * 32 | self.__underline * 128) |
100 |
|
|
101 |
|
def drawImage(self, image): |
102 |
|
logoOffset = 0 |
103 |
|
|
104 |
|
lw, lh = image.size |
105 |
|
vw = min(round(lw/8.0+.5),45) |
106 |
|
vh = min(round(lh/8.0+.5),24) |
107 |
|
uw = vw * 8 |
108 |
|
uh = vh * 8 |
109 |
|
|
110 |
|
rs = "\x1D\x2A" + chr(vw) + chr(vh) + "\x00" |
111 |
|
|
112 |
|
for y in range(vh): |
113 |
|
for x in range(uw): |
114 |
|
byte = 0 |
115 |
|
for bit in range(8): |
116 |
|
try: |
117 |
|
byte |= 2**bit and (image.getpixel((x, (y+1)*8 - (bit+1)*8)) > 0) |
118 |
|
except IndexError: |
119 |
|
pass |
120 |
|
rs += chr(byte) |
121 |
|
|
122 |
|
return rs + "\x1D\x2F\x00" |
123 |
|
|