前些时间把python里关于中文编码的问题摆弄了一把，辅以wxPython,写成了这个点阵字库生成软件，对搞嵌入式系统的朋友应该挺有用的。程序能生成8-32点宽的gb2312,gbk,big5三种中文字库，和标准的ascii字库；字体可以是任意的系统支持字体，但必须是等宽字体。
这是我第一个真正有意义的实用python程序，从中你也可以看到python的强大，整个代码300行不到！
代码和有关中文几种编码的资料的打包在这里：
http://blogimg.chinaunix.net/blog/upfile/070804153307.zip
这里似乎不支持过长的代码粘贴：只好把它变成text了：
源代码：
#-*- coding: gb2312 -*-
#----------------------------------------------------------------------
#pixel Chinese font library generator for embed system
#function : this program is to genreate chinese char library for embed system
# in encoding with gb2312 ,gbk, or Big5, in any font type user like and system have.
# it can also generate Ascii librarys, the char height and width is allways 2:1
#version : 0.1
#author :vinge
#start date :20070803
#license: GPL3
#----------------------------------------------------------------------
#Notice:
#for gb2312 chars start form 0xB0A1 ths chars form 0xA0A1 to 0xAFFE is not included
#for gbk,and big5, there are so many while holes start form 0xa1,thought they didn't
# mean any chars, it was also fill with empty 0x00, so as to keep the library linear
#----------------------------------------------------------------------
import wx
import binascii
#import wx._gdi
ID_ENCODE=wx.NewId()
ID_FONT=wx.NewId()
ID_HEIGHT=wx.NewId()
ID_WEIGHT=wx.NewId()
ID_ENCODE=wx.NewId()
class MyFrame(wx.Frame):
"""
This is the main frame of program
"""
def __init__(self, parent, title):
wx.Frame.__init__(self, parent, -1, title,
pos=(150, 150), size=(400, 250))
#global self.dc,self.screen
self.charheight=16
self.charwidth=8
self.specwidth=16
self.chrlist=[]
self.chrpixellist=[]
self.fontName="System"
self.encode="ASCII"
self.height=16
self.weight=wx.NORMAL
self.font=wx.Font(self.height*0.75, wx.SWISS , wx.NORMAL, self.weight, faceName=self.fontName)
self.buffer = wx.EmptyBitmap(320,240)
self.dc = wx.BufferedDC(None,self.buffer)#wx.Size(300,200))
self.dc.SetPen(wx.Pen("WHITE", 1))
self.dc.SetBackground(wx.Brush((0,0,0,255),wx.SOLID))
self.dc.SetTextBackground((255,255,255,255))
self.dc.SetTextForeground((255,255,255,255))
#self.dc.SetFont(wx.Font(16, wx.SWISS , wx.NORMAL, wx.NORMAL))
self.dc.SetFont(self.font )
# Create the selection bar
panel1 = wx.Panel(self, -1)
self.encodeChoise=wx.Choice(panel1, ID_ENCODE,choices=["ASCII","GB2312","GBK","BIG5"])
self.encodeChoise.Select(0)
fontEnu=wx.FontEnumerator()
fontEnu.EnumerateFacenames(encoding =wx.FONTENCODING_CP936|wx.FONTENCODING_GB2312|wx.FONTENCODING_BIG5 ,fixedWidthOnly = True)
#print fontEnu.GetFacenames()
self.fontChoise=wx.Choice(panel1,ID_FONT,choices=list(fontEnu.GetFacenames()) )
self.fontChoise.Select(0)
#print self.fontChoise.GetStringSelection()
self.weightChoise=wx.Choice(panel1, ID_WEIGHT,choices=["Normal","Light","Bold"])
self.weightChoise.Select(0)
self.heightChoise=wx.Choice(panel1,ID_HEIGHT,choices=[str(i) for i in range(8,33)])
self.heightChoise.Select(8)
#print self.heightChoise.GetStringSelection()
goBtn=wx.Button(panel1,wx.ID_APPLY,"Go")
sizer = wx.BoxSizer(wx.HORIZONTAL)
sizer.Add(self.encodeChoise, 0, wx.ALL|wx.ALIGN_LEFT, 1)
sizer.Add(self.fontChoise, 1, wx.ALL|wx.ALIGN_LEFT, 1)
sizer.Add(self.weightChoise,0,wx.ALL|wx.ALIGN_LEFT, 1)
sizer.Add(self.heightChoise, 0, wx.EXPAND |wx.ALL|wx.ALIGN_LEFT, 1)
sizer.Add(goBtn, 0, wx.ALL|wx.ALIGN_LEFT, 1)
sizer.Layout()
panel1.SetSizer(sizer)
panel2=wx.Panel(self,-1)
self.showtext=wx.StaticText(panel2,-1,"梦回唐朝 The quick brown fox jump over the lazy dog.")
self.showExample()
#self.showtext.SetFont(wx.Font(24, \
# wx.SWISS , wx.NORMAL, wx.NORMAL, faceName=self.fontChoise.GetStringSelection()))
p2sizer=wx.BoxSizer(wx.HORIZONTAL)
p2sizer.Add(self.showtext, 1, wx.EXPAND |wx.ALL|wx.ALIGN_LEFT, 0)
p2sizer.Layout()
panel2.SetSizer(p2sizer)
#
vsizer=wx.BoxSizer(wx.VERTICAL)
vsizer.Add(panel1,0,wx.EXPAND|wx.TOP,0)
vsizer.Add(panel2,1,wx.EXPAND|wx.TOP,0)
self.SetSizer(vsizer)
self.SetAutoLayout(True)
# bind the menu event to an event handler
self.Bind(wx.EVT_CHOICE, self.OnSetEncode, id=ID_ENCODE)
self.Bind(wx.EVT_CHOICE,self.OnSetFont,id=ID_FONT)
self.Bind(wx.EVT_CHOICE,self.OnSetWeight,id=ID_WEIGHT)
self.Bind(wx.EVT_CHOICE,self.OnSetSize,id=ID_HEIGHT)
self.Bind(wx.EVT_BUTTON,self.OnDo,id=wx.ID_APPLY)
#self.Bind(wx.EVT_PAINT, self.OnPaint)
#self.CreateStatusBar()
#--------------------------------------------------------------------
def OnSetEncode(self,evt):
"""set encoding"""
self.encode=self.encodeChoise.GetStringSelection()
#print self.encode
def OnSetFont(self,evt):
"""set font """
self.fontName=self.fontChoise.GetStringSelection()
#print self.fontName
self.showExample()
def OnSetWeight(self,evt):
"""set font weight"""
#print self.weightChoise.GetStringSelection()
weight=self.weightChoise.GetStringSelection()
if(weight=="Normal"):
self.weight=wx.NORMAL
elif(weight=="Light"):
self.weight=wx.LIGHT
else:
self.weight=wx.BOLD
self.showExample()
def OnSetSize(self,evt):
"""set font size"""
self.height=int(self.heightChoise.GetStringSelection())
#print self.height
self.showExample()
def showExample(self):
"""change the example chars to show the result to user"""
self.font=wx.Font(self.height*0.75, wx.TELETYPE , wx.NORMAL, self.weight, faceName=self.fontName)
self.dc.SetFont(self.font)
self.showtext.SetFont(self.font)
self.showtext.Wrap(-1)
self.showtext.Wrap(400)
#--------------------------------------------------------------------
def getCharPixel(self ,chr,width,height):
"""get the pixels of a given char"""
self.dc.Clear()
print chr,
#print "getting char ",chr#,self.charheight,width
self.dc.DrawText(chr,0,0)
#self.screen.Blit(0,0,319,239,self.dc,0,0)
k=7
dot=0
pixel=[]
for i in range(0,height):
for j in range(0,width) :
clr=self.dc.GetPixel(j,i)
if(clr[0]!=0):
dot=dot|(1< #print clr,hex(dot)," k=",k,hex(1< k=k-1
if (k==-1):
pixel.append(dot)
dot=0
k=7
#print len(pixel),pixel
#raw_input("waiting: ")
return pixel
#write it to file
def writeLib(self,name,charlist,charpixeldic):
"""write the generated library as a c header file,
the name parm will be use to name the file and the array in file
"""
print "\n now write the lib file"
headerFile=open(name+".h",'w')
headerFile.write("/* char lib header file generate by pyPCLGenerator */\n")
headerFile.write("/* go vinge.cublog.cn for source code */\n\n")
headerFile.write("/* "+name+" char pixel library, char height:"+str(self.height)+"*/\n")
headerFile.write("const unsigned char "+name+"[]["+str(len(charpixeldic[charlist[0]]))+"]={\n")
result=""
ct=0
for i in charlist[0:-1]:
result=result+" {/*---char: "+i+" ---*/\n "
s=["0x"+binascii.b2a_hex(chr(j)) for j in charpixeldic[i]]
for j in s[0:-1] :
result=result+j+","
result=result+s[-1]+"\n },\n"
ct=ct+1
if(ct>1000):
print "writing, please wait"
headerFile.write(result)
headerFile.flush()
result=""
#add the last char
result=result+" {/*---char: "+charlist[-1]+" ---*/\n "
s=["0x"+binascii.b2a_hex(chr(j)) for j in charpixeldic[charlist[-1]]]
for j in s[0:-1] :
result=result+j+","
result=result+s[-1]+"\n }\n};\n"
headerFile.write(result)
headerFile.close()
#---------------------------------------------------------------
def OnDo(self,evt):
""" generate the pixel char library"""
if(self.encode=="ASCII"):
#print "getting ascii"
self.genASCII()
elif(self.encode=="GB2312"):
#print "getting gb2312"
self.genGB2312()
elif(self.encode=="GBK"):
#print "getting gbk"
self.genGBK()
else:
#print "getting big5"
self.genBIG5()
def OnPaint(self,evt):
"""Event paint for app"""
print "painting"
#-------------------------------------------------------------
def genASCII(self):
"generate the ascii char library"
charList=[]
charDic={}
for i in range(32,127):
charList.append(chr(i))
charDic[chr(i)]=self.getCharPixel(chr(i),self.height/2,self.height)
self.writeLib("font"+str(self.height/2)+"X"+str(self.height)+"asciilib",charList,charDic)
print "\nascii library gen finish"
def genGB2312(self):
"generate the chinese gb2312 char library"
charList=[]
charDic={}
for i in range(0xb0,0xf8) :
for j in range(0xa1,0xff) :
thechar=chr(i)+chr(j)
charList.append(thechar)
charDic[thechar]=self.getCharPixel(thechar,self.height,self.height)
self.writeLib("font"+str(self.height)+"X"+str(self.height)+"gb2312lib",charList,charDic)
print "\ngb2312 library gen finish"
def genGBK(self):
"generate the chinese gbk char library"
charList=[]
charDic={}
for i in range(0x81,0xff) :
for j in range(0x40,0xff) :
thechar=chr(i)+chr(j)
charList.append(thechar)
charDic[thechar]=self.getCharPixel(thechar,self.height,self.height)
self.writeLib("font"+str(self.height)+"X"+str(self.height)+"gbklib",charList,charDic)
print "\ngbk library gen finish"
def genBIG5(self):
"generate the chinese big5 char library"
charList=[]
charDic={}
for i in range(0x81,0xff) :
for j in range(0x40,0x7f) :
thechar=chr(i)+chr(j)
charList.append(thechar)
charDic[thechar]=self.getCharPixel(thechar,self.height,self.height)
for j in range(0xa1,0xff) :
thechar=chr(i)+chr(j)
charList.append(thechar)
charDic[thechar]=self.getCharPixel(thechar,self.height,self.height)
self.writeLib("font"+str(self.height)+"X"+str(self.height)+"big5lib",charList,charDic)
print "\nbig5 library gen finish"
#----------------------------------------------------------
class MyApp(wx.App):
def OnInit(self):
frame = MyFrame(None, "Resource generator")
self.SetTopWindow(frame)
print "This program generate pixel font library for embed system."
frame.Show(True)
return True
#app = MyApp(redirect=True)
app=MyApp(redirect=False)
app.MainLoop()
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