# Scan an Apple header file, generating a Python file of generator calls.
import sys
from bgenlocations import TOOLBOXDIR, BGENDIR
sys.path.append(BGENDIR)

from scantools import Scanner

def main():
    input = "MacWindows.h"
    output = "wingen.py"
    defsoutput = TOOLBOXDIR + "Windows.py"
    scanner = MyScanner(input, output, defsoutput)
    scanner.scan()
    scanner.close()
    print("=== Testing definitions output code ===")
    exec(open(defsoutput).read(), {}, {})
    print("=== Done scanning and generating, now importing the generated code... ===")
    import winsupport
    print("=== Done.  It's up to you to compile it now! ===")

class MyScanner(Scanner):

    def destination(self, type, name, arglist):
        classname = "Function"
        listname = "functions"
        if arglist:
            t, n, m = arglist[0]
            if t in ("WindowPtr", "WindowPeek", "WindowRef") and m == "InMode":
                classname = "Method"
                listname = "methods"
        return classname, listname

    def writeinitialdefs(self):
        self.defsfile.write("def FOUR_CHAR_CODE(x): return x\n")
        self.defsfile.write("false = 0\n")
        self.defsfile.write("true = 1\n")
        self.defsfile.write("kWindowNoConstrainAttribute = 0x80000000\n")

    def makeblacklistnames(self):
        return [
                'DisposeWindow', # Implied when the object is deleted
                'CloseWindow',
                'SetWindowProperty',    # For the moment
                'GetWindowProperty',
                'GetWindowPropertySize',
                'RemoveWindowProperty',
                'MacCloseWindow',
                'GetWindowList', # Don't know whether this is safe...
                # Constants with funny definitions
                'kMouseUpOutOfSlop',
                'kAllWindowClasses',
                'kWindowNoConstrainAttribute',
                # OS8 only:
                'GetAuxWin',
                'GetWindowDataHandle',
                'SaveOld',
                'DrawNew',
                'SetWinColor',
                'SetDeskCPat',
                'InitWindows',
                'InitFloatingWindows',
                'GetWMgrPort',
                'GetCWMgrPort',
                'ValidRgn',             # Use versions with Window in their name
                'ValidRect',
                'InvalRgn',
                'InvalRect',
                'IsValidWindowPtr', # I think this is useless for Python, but not sure...
                'GetWindowZoomFlag',    # Not available in Carbon
                'GetWindowTitleWidth',  # Ditto
                'GetWindowGoAwayFlag',
                'GetWindowSpareFlag',
                ]

    def makeblacklisttypes(self):
        return [
                'ProcPtr',
                'DragGrayRgnUPP',
                'WindowPaintUPP',
                'Collection',           # For now, to be done later
                'WindowDefSpec',        # Too difficult for now
                'WindowDefSpec_ptr',
                'EventRef', #TBD
                ]

    def makerepairinstructions(self):
        return [

                # GetWTitle
                ([("Str255", "*", "InMode")],
                 [("*", "*", "OutMode")]),

                ([("void_ptr", "*", "InMode"), ("long", "*", "InMode")],
                 [("InBuffer", "*", "*")]),

                ([("void", "*", "OutMode"), ("long", "*", "InMode"),
                                            ("long", "*", "OutMode")],
                 [("VarVarOutBuffer", "*", "InOutMode")]),

                ([("void", "wStorage", "OutMode")],
                 [("NullStorage", "*", "InMode")]),

                # match FindWindowOfClass
                ([("WindowRef", "outWindow", "OutMode"), ("WindowPartCode", "outWindowPart", "OutMode")],
                 [("ExistingWindowPtr", "*", "OutMode"), ("WindowPartCode", "outWindowPart", "OutMode")]),
            # then match CreateNewWindow and CreateWindowFromResource
                ([("WindowRef", "outWindow", "OutMode")],
                 [("WindowRef", "*", "*")]),

                ([("WindowPtr", "*", "OutMode")],
                 [("ExistingWindowPtr", "*", "*")]),
                ([("WindowRef", "*", "OutMode")],       # Same, but other style headerfiles
                 [("ExistingWindowPtr", "*", "*")]),

                ([("WindowPtr", "FrontWindow", "ReturnMode")],
                 [("ExistingWindowPtr", "*", "*")]),
                ([("WindowRef", "FrontWindow", "ReturnMode")],  # Ditto
                 [("ExistingWindowPtr", "*", "*")]),
                ([("WindowPtr", "FrontNonFloatingWindow", "ReturnMode")],
                 [("ExistingWindowPtr", "*", "*")]),
                ([("WindowRef", "FrontNonFloatingWindow", "ReturnMode")],       # Ditto
                 [("ExistingWindowPtr", "*", "*")]),

                ([("Rect_ptr", "*", "ReturnMode")], # GetWindowXXXState accessors
                 [("void", "*", "ReturnMode")]),
                ]

if __name__ == "__main__":
    main()