Add pretty-printers for wxPoint, wxSize and wxRect.

Also replace an if checking for the supported types with an array-based
approach to make it easier to add pretty printers for more types in the
future.

git-svn-id: https://svn.wxwidgets.org/svn/wx/wxWidgets/trunk@63559 c3d73ce0-8a6f-49c7-b76d-6d57e0e08775

misc/gdb/print.py

@@ -10,6 +10,11 @@
 # License:      wxWindows licence
 ###############################################################################
 
+# Define wxFooPrinter class implementing (at least) to_string() method for each
+# wxFoo class we want to pretty print. Then just add wxFoo to the types array
+# in wxLookupFunction at the bottom of this file.
+
+
 # shamelessly stolen from std::string example
 class wxStringPrinter:
     def __init__(self, val):
@@ -21,9 +26,41 @@ class wxStringPrinter:
     def display_hint(self):
         return 'string'
 
+class wxXYPrinterBase:
+    def __init__(self, val):
+        self.x = val['x']
+        self.y = val['y']
+
+class wxPointPrinter(wxXYPrinterBase):
+    def to_string(self):
+        return '(%d, %d)' % (self.x, self.y)
+
+class wxSizePrinter(wxXYPrinterBase):
+    def to_string(self):
+        return '%d*%d' % (self.x, self.y)
+
+class wxRectPrinter(wxXYPrinterBase):
+    def __init__(self, val):
+        wxXYPrinterBase.__init__(self, val)
+        self.width = val['width']
+        self.height = val['height']
+
+    def to_string(self):
+        return '(%d, %d) %d*%d' % (self.x, self.y, self.width, self.height)
+
+
+# The function looking up the pretty-printer to use for the given value.
 def wxLookupFunction(val):
-    if val.type.tag == 'wxString':
-        return wxStringPrinter(val)
+    # Using a list is probably ok for so few items but consider switching to a
+    # set (or a dict and cache class types as the keys in it?) if needed later.
+    types = ['wxString', 'wxPoint', 'wxSize', 'wxRect']
+
+    for t in types:
+        if val.type.tag == t:
+            # Not sure if this is the best name to create the object of a class
+            # by name but at least it beats eval()
+            return globals()[t + 'Printer'](val)
+
     return None
 
 gdb.pretty_printers.append(wxLookupFunction)