Mercurial > cpython-lru_cache-weakref

annotate Mac/mkapplet.py @ 5817:48b94de85bf3 legacy-trunk

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Extensive changes by AMK.
author Guido van Rossum <guido@python.org>
date Thu, 17 Jul 1997 16:29:42 +0000
parents 98c1d84101a5
children
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1 """Create an applet from a Python script.
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2
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3 This puts up a dialog asking for a Python source file ('TEXT').
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4 The output is a file with the same name but its ".py" suffix dropped.
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5 It is created by copying an applet template and then adding a 'PYC '
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6 resource named __main__ containing the compiled, marshalled script.
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7 """
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8
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9 import sys
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10 sys.stdout = sys.stderr
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11
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12 import string
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13 import os
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14 import marshal
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15 import imp
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16 import macfs
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17 import MacOS
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18 from Res import *
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19
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20 # .pyc file (and 'PYC ' resource magic number)
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21 MAGIC = imp.get_magic()
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22
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23 # Template file (searched on sys.path)
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24 TEMPLATE = "PythonApplet"
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25
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26 # Specification of our resource
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27 RESTYPE = 'PYC '
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28 RESNAME = '__main__'
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29
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30 # A resource with this name sets the "owner" (creator) of the destination
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31 OWNERNAME = "owner resource"
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32
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33 # OpenResFile mode parameters
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34 READ = 1
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35 WRITE = 2
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36
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37 def main():
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38
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39 # Find the template
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40 # (there's no point in proceeding if we can't find it)
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41
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42 for p in sys.path:
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43 template = os.path.join(p, TEMPLATE)
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44 try:
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45 tmpl = open(template, "rb")
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46 tmpl.close()
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47 break
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48 except IOError:
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49 continue
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50 else:
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51 die("Template %s not found" % `template`)
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52 return
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53
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54 # Ask for source text if not specified in sys.argv[1:]
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55
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56 if not sys.argv[1:]:
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57 srcfss, ok = macfs.StandardGetFile('TEXT')
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58 if not ok:
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59 return
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60 filename = srcfss.as_pathname()
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61 tp, tf = os.path.split(filename)
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62 if tf[-3:] == '.py':
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63 tf = tf[:-3]
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64 else:
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65 tf = tf + '.applet'
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66 dstfss, ok = macfs.StandardPutFile('Save application as:', tf)
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67 if not ok: return
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68 process(template, filename, dstfss.as_pathname())
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69 else:
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70
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71 # Loop over all files to be processed
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72 for filename in sys.argv[1:]:
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73 process(template, filename, '')
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74
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75 undefs = ('????', ' ', '\0\0\0\0', 'BINA')
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76
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77 def process(template, filename, output):
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78
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79 print "Processing", `filename`, "..."
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80
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81 # Read the source and compile it
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82 # (there's no point overwriting the destination if it has a syntax error)
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83
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84 fp = open(filename)
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85 text = fp.read()
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86 fp.close()
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87 try:
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88 code = compile(text, filename, "exec")
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89 except (SyntaxError, EOFError):
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90 die("Syntax error in script %s" % `filename`)
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91 return
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92
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93 # Set the destination file name
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94
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95 if string.lower(filename[-3:]) == ".py":
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96 destname = filename[:-3]
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97 rsrcname = destname + '.rsrc'
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98 else:
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99 destname = filename + ".applet"
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100 rsrcname = filename + '.rsrc'
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101
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102 if output:
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103 destname = output
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104 # Copy the data from the template (creating the file as well)
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105
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106 tmpl = open(template, "rb")
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107 dest = open(destname, "wb")
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108 data = tmpl.read()
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109 if data:
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110 dest.write(data)
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111 dest.close()
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112 tmpl.close()
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113
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114 # Copy the creator of the template to the destination
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115 # unless it already got one. Set type to APPL
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116
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117 tctor, ttype = MacOS.GetCreatorAndType(template)
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118 ctor, type = MacOS.GetCreatorAndType(destname)
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119 if type in undefs: type = 'APPL'
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120 if ctor in undefs: ctor = tctor
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121
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122 # Open the output resource fork
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123
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124 try:
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125 output = FSpOpenResFile(destname, WRITE)
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126 except MacOS.Error:
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127 print "Creating resource fork..."
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128 CreateResFile(destname)
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129 output = FSpOpenResFile(destname, WRITE)
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130
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131 # Copy the resources from the template
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132
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133 input = FSpOpenResFile(template, READ)
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134 newctor = copyres(input, output)
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135 CloseResFile(input)
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136 if newctor: ctor = newctor
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137
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138 # Copy the resources from the target specific resource template, if any
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139
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140 try:
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141 input = FSpOpenResFile(rsrcname, READ)
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142 except MacOS.Error:
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143 pass
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144 else:
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145 newctor = copyres(input, output)
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146 CloseResFile(input)
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147 if newctor: ctor = newctor
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148
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149 # Now set the creator and type of the destination
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150
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151 MacOS.SetCreatorAndType(destname, ctor, type)
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152
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153 # Make sure we're manipulating the output resource file now
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154
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155 UseResFile(output)
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156
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157 # Delete any existing 'PYC 'resource named __main__
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158
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159 try:
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160 res = Get1NamedResource(RESTYPE, RESNAME)
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161 res.RmveResource()
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162 except Error:
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163 pass
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164
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165 # Create the raw data for the resource from the code object
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166
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167 data = marshal.dumps(code)
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168 del code
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169 data = (MAGIC + '\0\0\0\0') + data
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170
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171 # Create the resource and write it
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172
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173 id = 0
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174 while id < 128:
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175 id = Unique1ID(RESTYPE)
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176 res = Resource(data)
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177 res.AddResource(RESTYPE, id, RESNAME)
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178 res.WriteResource()
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179 res.ReleaseResource()
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180
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181 # Close the output file
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182
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183 CloseResFile(output)
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184
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185 # Give positive feedback
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186
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187 message("Applet %s created." % `destname`)
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188
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189
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190 # Copy resources between two resource file descriptors.
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191 # Exception: don't copy a __main__ resource.
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192 # If a resource's name is "owner resource", its type is returned
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193 # (so the caller can use it to set the destination's creator)
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194
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195 def copyres(input, output):
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196 ctor = None
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197 UseResFile(input)
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198 ntypes = Count1Types()
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199 for itype in range(1, 1+ntypes):
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200 type = Get1IndType(itype)
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201 nresources = Count1Resources(type)
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202 for ires in range(1, 1+nresources):
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203 res = Get1IndResource(type, ires)
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204 id, type, name = res.GetResInfo()
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205 lcname = string.lower(name)
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206 if (type, lcname) == (RESTYPE, RESNAME):
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207 continue # Don't copy __main__ from template
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208 if lcname == OWNERNAME: ctor = type
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209 size = res.SizeResource()
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210 attrs = res.GetResAttrs()
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211 print id, type, name, size, hex(attrs)
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212 res.LoadResource()
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213 res.DetachResource()
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214 UseResFile(output)
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215 try:
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216 res2 = Get1Resource(type, id)
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217 except MacOS.Error:
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218 res2 = None
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219 if res2:
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220 print "Overwriting..."
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221 res2.RmveResource()
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222 res.AddResource(type, id, name)
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223 res.WriteResource()
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224 attrs = attrs | res.GetResAttrs()
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225 print "New attrs =", hex(attrs)
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226 res.SetResAttrs(attrs)
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227 UseResFile(input)
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228 return ctor
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229
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230
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231 # Show a message and exit
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232
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233 def die(str):
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234 message(str)
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235 sys.exit(1)
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236
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237
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238 # Show a message
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239
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240 def message(str, id = 256):
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241 from Dlg import *
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242 d = GetNewDialog(id, -1)
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243 if not d:
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244 print "Error:", `str`
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245 print "DLOG id =", id, "not found."
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246 return
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247 tp, h, rect = d.GetDItem(2)
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248 SetIText(h, str)
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249 while 1:
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250 n = ModalDialog(None)
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251 if n == 1: break
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252 del d
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253
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254
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255 if __name__ == '__main__':
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256 main()
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257