Initial revision

Lib/lib-stdwin/wdbframewin.py

@@ -0,0 +1,108 @@
+# wdb.py -- a window-based Python debugger
+
+import stdwin
+from stdwinevents import *
+import basewin
+import sys
+
+WIDTH = 40
+MAXHEIGHT = 16
+
+class FrameWindow(basewin.BaseWindow):
+
+	def init(self, debugger, frame, dict, name):
+		self.debugger = debugger
+		self.frame = frame # Not used except for identity tests
+		self.dict = dict
+		self.name = name
+		nl = max(4, len(self.dict))
+		nl = min(nl, MAXHEIGHT)
+		width = WIDTH*stdwin.textwidth('0')
+		height = nl*stdwin.lineheight()
+		stdwin.setdefwinsize(width, height)
+		self = basewin.BaseWindow.init(self, '--Frame ' + name + '--')
+		self.initeditor()
+		self.displaylist = ['>>>', '', '-'*WIDTH]
+		self.refreshframe()
+		return self
+	
+	def initeditor(self):
+		r = (stdwin.textwidth('>>> '), 0), (30000, stdwin.lineheight())
+		self.editor = self.win.textcreate(r)
+	
+	def closeeditor(self):
+		self.editor.close()
+	
+	def dispatch(self, event):
+		type, win, detail = event
+		if type == WE_NULL: return # Dummy tested by mainloop
+		if type in (WE_DRAW, WE_COMMAND) \
+				or not self.editor.event(event):
+			basewin.BaseWindow.dispatch(self, event)
+	
+	def close(self):
+		del self.debugger.framewindows[self.name]
+		del self.debugger, self.dict
+		self.closeeditor()
+		basewin.BaseWindow.close(self)
+	
+	def command(self, detail):
+		if detail == WC_RETURN:
+			self.re_eval()
+		else:
+			dummy = self.editor.event(WE_COMMAND, \
+						self.win, detail)
+	
+	def re_eval(self):
+		import string, repr
+		expr = string.strip(self.editor.gettext())
+		if expr == '':
+			output = ''
+		else:
+			globals = self.frame.f_globals
+			locals = self.frame.f_locals
+			try:
+				value = eval(expr, globals, locals)
+				output = repr.repr(value)
+			except:
+				output = sys.exc_type + ': ' + `sys.exc_value`
+		self.displaylist[1] = output
+		lh = stdwin.lineheight()
+		r = (-10, 0), (30000, 2*lh)
+		self.win.change(r)
+		self.editor.setfocus(0, len(expr))
+	
+	def draw(self, detail):
+		(left, top), (right, bottom) = detail
+		dummy = self.editor.draw(detail)
+		d = self.win.begindrawing()
+		try:
+			lh = d.lineheight()
+			h, v = 0, 0
+			for line in self.displaylist:
+				if v+lh > top and v < bottom:
+					d.text((h, v), line)
+				v = v + lh
+		finally:
+			d.close()
+	
+	def refreshframe(self):
+		import repr
+		del self.displaylist[3:]
+		self.re_eval()
+		names = self.dict.keys()
+		for key, label in ('__args__', 'Args: '), \
+				  ('__return__', 'Return: '):
+			if self.dict.has_key(key):
+				names.remove(key)
+				value = self.dict[key]
+				label = label + repr.repr(value)
+			self.displaylist.append(label)
+		names.sort()
+		for name in names:
+			value = self.dict[name]
+			line = name + ' = ' + repr.repr(value)
+			self.displaylist.append(line)
+		self.win.setdocsize(0, \
+			stdwin.lineheight() * len(self.displaylist))
+		self.refreshall() # XXX Be more subtle later