generate code for pdf viewer (initial draft)
Review URL: https://codereview.chromium.org/15973008
git-svn-id: http://skia.googlecode.com/svn/trunk@9520 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/experimental/PdfViewer/generate_code.py b/experimental/PdfViewer/generate_code.py
new file mode 100644
index 0000000..53316ea
--- /dev/null
+++ b/experimental/PdfViewer/generate_code.py
@@ -0,0 +1,158 @@
+import sys
+
+class PdfName:
+ def __init__(self, name, abr=''):
+ self.fName = name
+ self.fAbr = abr
+
+class PdfInteger:
+ def __init__(self, value):
+ self.fValue = value
+
+class PdfReal:
+ def __init__(self, value):
+ self.fValue = value
+
+class PdfString:
+ def __init__(self, value):
+ self.fValue = value
+
+class PdfBoolean:
+ def __init__(self, value):
+ self.fValue = value
+
+class PdfField:
+ def __init__(self, parent, name, abr):
+ self.fParent = parent
+ self.fName = name
+ self.fAbr = abr
+
+ self.fDefault = ''
+ self.fType = ''
+
+ def must(self, value):
+ return self.fParent
+
+ def default(self, value):
+ self.fDefault = value
+ return self
+
+ def number(self):
+ self.fType = 'number'
+ return self
+
+ def integer(self):
+ self.fType = 'integer'
+ return self
+
+ def real(self):
+ self.fType = 'real'
+ return self
+
+ def name(self):
+ self.fType = 'name'
+ return self
+
+ def string(self):
+ self.fType = 'string'
+ return self
+
+ def multiple(self, options):
+ self.fType = 'multiple'
+ self.fOptions = options
+ return self
+
+ def done(self):
+ return self.fParent
+
+
+class PdfClassField:
+ def __init__(self, parent, required):
+ self.fFields = []
+ self.fIncludes = []
+ self.fCC = []
+ self.fParent = parent
+ self.fRequired = required
+
+ def hasField(self, name, abr=''):
+ return PdfField(self, name, abr)
+
+ def done(self):
+ return self.fParent
+
+class PdfClass:
+ def __init__(self, name, base):
+ self.fFields = []
+ self.fIncludes = []
+ self.fCC = []
+ self.fName = name
+ self.fBase = base
+
+ def required(self):
+ field = PdfClassField(self, True)
+ self.fFields.append(field)
+ return field
+
+ def optional(self):
+ field = PdfClassField(self, False)
+ self.fFields.append(field)
+ return field
+
+ def include(self, path):
+ self.fIncludes.append(path)
+ return self
+
+ def carbonCopy(self, cc):
+ self.fCC.append(cc)
+ return self
+
+class PdfClassManager:
+ def __init__(self):
+ self.fClasses = []
+
+ def addClass(self, name, base=''):
+ cls = PdfClass(name, base)
+ self.fClasses.append(cls)
+ return cls
+
+ def write(self):
+ return
+
+def generateCode():
+ all = PdfClassManager()
+
+ all.addClass('Object')
+ all.addClass('Null')
+ all.addClass('Boolean')
+ all.addClass('Integer')
+ all.addClass('Real')
+ all.addClass('Name')
+ all.addClass('Stream')
+ all.addClass('Reference')
+ all.addClass('Array')
+ all.addClass('Dictionary')
+
+ all.addClass('XObject', 'Dictionary').required().hasField('/Type').must('/XObject')
+
+ all.addClass('Image', 'XObject').required().hasField('/Type').must('/XObject').done()\
+ .required().hasField('/Subtype').must('/Image').done()\
+ .required().hasField('/Width', '/W').integer().done().done()\
+ .required().hasField('/Height', '/H').integer().done().done()\
+ .required().hasField('/ColorSpace').multiple([PdfName('/DeviceRGB', '/RGB'), PdfName('/DeviceGray', '/Gray')])\
+ .done()\
+ .done()\
+ .optional().hasField('/BitsPerComponent', '/BPC').multiple([PdfInteger(1), PdfInteger(2), PdfInteger(4), PdfInteger(8)])\
+ .default(PdfInteger(1))\
+ .done().done()\
+ .carbonCopy('SkBitmap bitmap;')
+
+ all.addClass('Form', 'XObject').required().hasField('/Type').must('/XObject').done()\
+ .required().hasField('/Subtype').must('/Form').done()
+
+
+ all.write()
+
+ return 1
+
+if '__main__' == __name__:
+ sys.exit(generateCode())