diff options
Diffstat (limited to 'tools/lib2geom_gdb.py')
| -rw-r--r-- | tools/lib2geom_gdb.py | 107 |
1 files changed, 107 insertions, 0 deletions
diff --git a/tools/lib2geom_gdb.py b/tools/lib2geom_gdb.py new file mode 100644 index 0000000..f98421c --- /dev/null +++ b/tools/lib2geom_gdb.py @@ -0,0 +1,107 @@ +import gdb.printing +import math + +def xstr(val): + if val.is_optimized_out: + return "<optimized out>" + else: + return str(val) + +class GeomPointPrinter: + def __init__(self, val): + self.val = val + def to_string(self): + return "(" + xstr(self.val["_pt"][0]) + ", " + xstr(self.val["_pt"][1]) + ")" + +class GeomIntervalPrinter: + def __init__(self, val): + self.val = val + def to_string(self): + return "[" + xstr(self.val["_b"][0]) + ", " + xstr(self.val["_b"][1]) + ")" + +class GeomOptIntervalPrinter: + def __init__(self, val): + self.val = val + def to_string(self): + if self.val["m_initialized"]: + addr = self.val["m_storage"]["dummy_"]["data"].address + if self.val.type == gdb.lookup_type('Geom::OptInterval'): + return str(addr.cast(gdb.lookup_type('Geom::Interval').pointer()).dereference()) + else: + return str(addr.cast(gdb.lookup_type('Geom::GenericInterval<int>').pointer()).dereference()) + else: + return "empty" + +class GeomRectPrinter: + def __init__(self, val): + self.val = val + def to_string(self): + return str(self.val["f"][0]) + " x " + str(self.val["f"][1]) + +class GeomOptRectPrinter: + def __init__(self, val): + self.val = val + def to_string(self): + if self.val["m_initialized"]: + addr = self.val["m_storage"]["dummy_"]["data"].address + if self.val.type == gdb.lookup_type('Geom::OptRect'): + return str(addr.cast(gdb.lookup_type('Geom::Rect').pointer()).dereference()) + else: + return str(addr.cast(gdb.lookup_type('Geom::GenericRect<int>').pointer()).dereference()) + else: + return "empty" + +class GeomAffinePrinter: + def __init__(self, val): + self.val = val + def to_string(self): + return ("\n | %8f %8f 0 |" + + "\n | %8f %8f 0 |" + + "\n | %8f %8f 1 |") % tuple(self.val["_c"][x] for x in range(0,6)) + +class GeomTranslatePrinter: + def __init__(self, val): + self.val = val + def to_string(self): + return "translate by " + str(self.val["vec"]) + +class GeomScalePrinter: + def __init__(self, val): + self.val = val + def to_string(self): + return "scale by " + str(self.val["vec"]) + +class GeomRotatePrinter: + def __init__(self, val): + self.val = val + def to_string(self): + x = self.val["vec"][0] + y = self.val["vec"][1] + angle = math.atan2(y, x) / math.pi * 180.0 + return "rotate by %s = %f degrees" % (str(self.val["vec"]), angle) + +class GeomZoomPrinter: + def __init__(self, val): + self.val = val + def to_string(self): + return "zoom %f%% at %s" % (self.val["_scale"] * 100, str(self.val["_trans"])) + + +def lib2geom_pretty_printer(): + pp = gdb.printing.RegexpCollectionPrettyPrinter("lib2geom") + pp.add_printer('Geom::Point', '^Geom::(Int)?Point$', GeomPointPrinter) + pp.add_printer('Geom::Interval', '^(Geom::Interval|Geom::GenericInterval<int>)$', GeomIntervalPrinter) + pp.add_printer('Geom::OptInterval', '^(Geom::OptInterval|Geom::GenericOptInterval<int>)$', GeomOptIntervalPrinter) + pp.add_printer('Geom::Rect', '^(Geom::Rect|Geom::GenericRect<int>)$', GeomRectPrinter) + pp.add_printer('Geom::OptRect', '^(Geom::OptRect|Geom::GenericOptRect<int>)$', GeomOptRectPrinter) + pp.add_printer('Geom::Affine', '^Geom::Affine$', GeomAffinePrinter) + pp.add_printer('Geom::Translate', '^Geom::Translate$', GeomTranslatePrinter) + pp.add_printer('Geom::Scale', '^Geom::Scale', GeomScalePrinter) + pp.add_printer('Geom::Rotate', '^Geom::Rotate$', GeomRotatePrinter) + pp.add_printer('Geom::Zoom', '^Geom::Zoom$', GeomZoomPrinter) + return pp + +def register_lib2geom_printers(): + gdb.printing.register_pretty_printer( + gdb.current_objfile(), + lib2geom_pretty_printer()) |