| """A simple Mac-only browse utility to peek at the inner data structures of Python.""" |
| # Minor modifications by Jack to facilitate incorporation in twit. |
| |
| # june 1996 |
| # Written by Just van Rossum <just@knoware.nl>, please send comments/improvements. |
| # Loosely based on Jack Jansens's PICTbrowse.py, but depends on his fabulous FrameWork.py |
| # XXX Some parts are *very* poorly solved. Will fix. Guido has to check if all the |
| # XXX "python-peeking" is done correctly. I kindof reverse-engineered it ;-) |
| |
| # disclaimer: although I happen to be the brother of Python's father, programming is |
| # not what I've been trained to do. So don't be surprised if you find anything that's not |
| # as nice as it could be... |
| |
| # XXX to do: |
| # Arrow key support |
| # Copy & Paste? |
| # MAIN_TEXT item should not contain (type); should be below or something. |
| # MAIN_TEXT item should check if a string is binary or not: convert to '/000' style |
| # or convert newlines. |
| |
| version = "1.0" |
| |
| import FrameWork |
| import EasyDialogs |
| import Dlg |
| import Res |
| import Qd |
| import List |
| import sys |
| from Types import * |
| from QuickDraw import * |
| import string |
| import time |
| import os |
| |
| # The initial object to start browsing with. Can be anything, but 'sys' makes kindof sense. |
| start_object = sys |
| |
| # Resource definitions |
| ID_MAIN = 503 |
| NUM_LISTS = 4 # the number of lists used. could be changed, but the dlg item numbers should be consistent |
| MAIN_TITLE = 3 # this is only the first text item, the other three ID's should be 5, 7 and 9 |
| MAIN_LIST = 4 # this is only the first list, the other three ID's should be 6, 8 and 10 |
| MAIN_TEXT = 11 |
| MAIN_LEFT = 1 |
| MAIN_RIGHT = 2 |
| MAIN_RESET = 12 |
| MAIN_CLOSE = 13 |
| MAIN_LINE = 14 |
| |
| def Initialize(): |
| # this bit ensures that this module will also work as an applet if the resources are |
| # in the resource fork of the applet |
| # stolen from Jack, so it should work(?!;-) |
| try: |
| # if this doesn't raise an error, we are an applet containing the necessary resources |
| # so we don't have to bother opening the resource file |
| dummy = Res.GetResource('DLOG', ID_MAIN) |
| except Res.Error: |
| savewd = os.getcwd() |
| ourparentdir = os.path.split(openresfile.func_code.co_filename)[0] |
| os.chdir(ourparentdir) |
| try: |
| Res.FSpOpenResFile("mactwit_browse.rsrc", 1) |
| except Res.Error, arg: |
| EasyDialogs.Message("Cannot open mactwit_browse.rsrc: "+arg[1]) |
| sys.exit(1) |
| os.chdir(savewd) |
| |
| def main(): |
| Initialize() |
| PythonBrowse() |
| |
| # this is all there is to it to make an application. |
| class PythonBrowse(FrameWork.Application): |
| def __init__(self): |
| FrameWork.Application.__init__(self) |
| VarBrowser(self).open(start_object) |
| self.mainloop() |
| |
| def do_about(self, id, item, window, event): |
| EasyDialogs.Message(self.__class__.__name__ + " version " + version + "\rby Just van Rossum") |
| |
| def quit(self, *args): |
| raise self |
| |
| class MyList: |
| def __init__(self, wid, rect, itemnum): |
| # wid is the window (dialog) where our list is going to be in |
| # rect is it's item rectangle (as in dialog item) |
| # itemnum is the itemnumber in the dialog |
| self.rect = rect |
| rect2 = rect[0]+1, rect[1]+1, rect[2]-16, rect[3]-1 # Scroll bar space, that's 15 + 1, Jack! |
| self.list = List.LNew(rect2, (0, 0, 1, 0), (0,0), 0, wid, |
| 0, 1, 0, 1) |
| self.wid = wid |
| self.active = 0 |
| self.itemnum = itemnum |
| |
| def setcontent(self, content, title = ""): |
| # first, gather some stuff |
| keylist = [] |
| valuelist = [] |
| thetype = type(content) |
| if thetype == DictType: |
| keylist = content.keys() |
| keylist.sort() |
| for key in keylist: |
| valuelist.append(content[key]) |
| elif thetype == ListType: |
| keylist = valuelist = content |
| elif thetype == TupleType: |
| |
| keylist = valuelist = [] |
| for i in content: |
| keylist.append(i) |
| else: |
| # XXX help me! is all this correct? is there more I should consider??? |
| # XXX is this a sensible way to do it in the first place???? |
| # XXX I'm not familiar enough with Python's guts to be sure. GUIDOOOOO!!! |
| if hasattr(content, "__dict__"): |
| keylist = keylist + content.__dict__.keys() |
| if hasattr(content, "__methods__"): |
| keylist = keylist + content.__methods__ |
| if hasattr(content, "__members__"): |
| keylist = keylist + content.__members__ |
| if hasattr(content, "__class__"): |
| keylist.append("__class__") |
| if hasattr(content, "__bases__"): |
| keylist.append("__bases__") |
| if hasattr(content, "__name__"): |
| title = content.__name__ |
| if "__name__" not in keylist: |
| keylist.append("__name__") |
| keylist.sort() |
| for key in keylist: |
| valuelist.append(getattr(content, key)) |
| if content <> None: |
| title = title + "\r" + cleantype(content) |
| # now make that list! |
| tp, h, rect = self.wid.GetDialogItem(self.itemnum - 1) |
| Dlg.SetDialogItemText(h, title[:255]) |
| self.list.LDelRow(0, 1) |
| self.list.LSetDrawingMode(0) |
| self.list.LAddRow(len(keylist), 0) |
| for i in range(len(keylist)): |
| self.list.LSetCell(str(keylist[i]), (0, i)) |
| self.list.LSetDrawingMode(1) |
| self.list.LUpdate(self.wid.GetWindowPort().visRgn) |
| self.content = content |
| self.keylist = keylist |
| self.valuelist = valuelist |
| self.title = title |
| |
| # draw a frame around the list, List Manager doesn't do that |
| def drawframe(self): |
| Qd.SetPort(self.wid) |
| Qd.FrameRect(self.rect) |
| rect2 = Qd.InsetRect(self.rect, -3, -3) |
| save = Qd.GetPenState() |
| Qd.PenSize(2, 2) |
| if self.active: |
| Qd.PenPat(Qd.qd.black) |
| else: |
| Qd.PenPat(Qd.qd.white) |
| # draw (or erase) an extra frame to indicate this is the acive list (or not) |
| Qd.FrameRect(rect2) |
| Qd.SetPenState(save) |
| |
| |
| |
| class VarBrowser(FrameWork.DialogWindow): |
| def open(self, start_object, title = ""): |
| FrameWork.DialogWindow.open(self, ID_MAIN) |
| if title <> "": |
| windowtitle = self.wid.GetWTitle() |
| self.wid.SetWTitle(windowtitle + " >> " + title) |
| else: |
| if hasattr(start_object, "__name__"): |
| windowtitle = self.wid.GetWTitle() |
| self.wid.SetWTitle(windowtitle + " >> " + str(getattr(start_object, "__name__")) ) |
| |
| self.SetPort() |
| Qd.TextFont(3) |
| Qd.TextSize(9) |
| self.lists = [] |
| self.listitems = [] |
| for i in range(NUM_LISTS): |
| self.listitems.append(MAIN_LIST + 2 * i) # dlg item numbers... have to be consistent |
| for i in self.listitems: |
| tp, h, rect = self.wid.GetDialogItem(i) |
| list = MyList(self.wid, rect, i) |
| self.lists.append(list) |
| self.leftover = [] |
| self.rightover = [] |
| self.setup(start_object, title) |
| |
| def close(self): |
| self.lists = [] |
| self.listitems = [] |
| self.do_postclose() |
| |
| def setup(self, start_object, title = ""): |
| # here we set the starting point for our expedition |
| self.start = start_object |
| self.lists[0].setcontent(start_object, title) |
| for list in self.lists[1:]: |
| list.setcontent(None) |
| |
| def do_listhit(self, event, item): |
| (what, message, when, where, modifiers) = event |
| Qd.SetPort(self.wid) |
| where = Qd.GlobalToLocal(where) |
| for list in self.lists: |
| list.active = 0 |
| list = self.lists[self.listitems.index(item)] |
| list.active = 1 |
| for l in self.lists: |
| l.drawframe() |
| |
| point = (0,0) |
| ok, point = list.list.LGetSelect(1, point) |
| if ok: |
| oldsel = point[1] |
| else: |
| oldsel = -1 |
| # This should be: list.list.LClick(where, modifiers) |
| # Since the selFlags field of the list is not accessible from Python I have to do it like this. |
| # The effect is that you can't select more items by using shift or command. |
| list.list.LClick(where, 0) |
| |
| index = self.listitems.index(item) + 1 |
| point = (0,0) |
| ok, point = list.list.LGetSelect(1, point) |
| if oldsel == point[1]: |
| return # selection didn't change, do nothing. |
| if not ok: |
| for i in range(index, len(self.listitems)): |
| self.lists[i].setcontent(None) |
| self.rightover = [] |
| return |
| |
| if point[1] >= len(list.keylist): |
| return # XXX is this still necessary? is ok really true? |
| key = str(list.keylist[point[1]]) |
| value = list.valuelist[point[1]] |
| |
| self.settextitem("") |
| thetype = type(value) |
| if thetype == ListType or \ |
| thetype == TupleType or \ |
| thetype == DictType or \ |
| hasattr(value, "__dict__") or \ |
| hasattr(value, "__methods__") or \ |
| hasattr(value, "__members__"): # XXX or, or... again: did I miss something? |
| if index >= len(self.listitems): |
| # we've reached the right side of our dialog. move everything to the left |
| # (by pushing the rightbutton...) |
| self.do_rightbutton(1) |
| index = index - 1 |
| newlist = self.lists[index] |
| newlist.setcontent(value, key) |
| else: |
| index = index - 1 |
| self.settextitem( str(value) + "\r" + cleantype(value)) |
| for i in range(index + 1, len(self.listitems)): |
| self.lists[i].setcontent(None) |
| self.rightover = [] |
| |
| # helper to set the big text item at the bottom of the dialog. |
| def settextitem(self, text): |
| tp, h, rect = self.wid.GetDialogItem(MAIN_TEXT) |
| Dlg.SetDialogItemText(h, text[:255]) |
| |
| def do_rawupdate(self, window, event): |
| Qd.SetPort(self.wid) |
| iType, iHandle, iRect = window.GetDialogItem(MAIN_LINE) |
| Qd.FrameRect(iRect) |
| for list in self.lists: |
| Qd.FrameRect(list.rect) |
| if list.active: |
| # see MyList.drawframe |
| rect2 = Qd.InsetRect(list.rect, -3, -3) |
| save = Qd.GetPenState() |
| Qd.PenSize(2, 2) |
| Qd.FrameRect(rect2) |
| Qd.SetPenState(save) |
| for list in self.lists: |
| list.list.LUpdate(self.wid.GetWindowPort().visRgn) |
| |
| def do_activate(self, activate, event): |
| for list in self.lists: |
| list.list.LActivate(activate) |
| |
| # scroll everything one 'unit' to the left |
| # XXX I don't like the way this works. Too many 'manual' assignments |
| def do_rightbutton(self, force = 0): |
| if not force and self.rightover == []: |
| return |
| self.scroll(-1) |
| point = (0, 0) |
| ok, point = self.lists[0].list.LGetSelect(1, point) |
| self.leftover.append((point, self.lists[0].content, self.lists[0].title, self.lists[0].active)) |
| for i in range(len(self.lists)-1): |
| point = (0, 0) |
| ok, point = self.lists[i+1].list.LGetSelect(1, point) |
| self.lists[i].setcontent(self.lists[i+1].content, self.lists[i+1].title) |
| self.lists[i].list.LSetSelect(ok, point) |
| self.lists[i].list.LAutoScroll() |
| self.lists[i].active = self.lists[i+1].active |
| self.lists[i].drawframe() |
| if len(self.rightover) > 0: |
| point, content, title, active = self.rightover[-1] |
| self.lists[-1].setcontent(content, title) |
| self.lists[-1].list.LSetSelect(1, point) |
| self.lists[-1].list.LAutoScroll() |
| self.lists[-1].active = active |
| self.lists[-1].drawframe() |
| del self.rightover[-1] |
| else: |
| self.lists[-1].setcontent(None) |
| self.lists[-1].active = 0 |
| for list in self.lists: |
| list.drawframe() |
| |
| # scroll everything one 'unit' to the right |
| def do_leftbutton(self): |
| if self.leftover == []: |
| return |
| self.scroll(1) |
| if self.lists[-1].content <> None: |
| point = (0, 0) |
| ok, point = self.lists[-1].list.LGetSelect(1, point) |
| self.rightover.append((point, self.lists[-1].content, self.lists[-1].title, self.lists[-1].active )) |
| for i in range(len(self.lists)-1, 0, -1): |
| point = (0, 0) |
| ok, point = self.lists[i-1].list.LGetSelect(1, point) |
| self.lists[i].setcontent(self.lists[i-1].content, self.lists[i-1].title) |
| self.lists[i].list.LSetSelect(ok, point) |
| self.lists[i].list.LAutoScroll() |
| self.lists[i].active = self.lists[i-1].active |
| self.lists[i].drawframe() |
| if len(self.leftover) > 0: |
| point, content, title, active = self.leftover[-1] |
| self.lists[0].setcontent(content, title) |
| self.lists[0].list.LSetSelect(1, point) |
| self.lists[0].list.LAutoScroll() |
| self.lists[0].active = active |
| self.lists[0].drawframe() |
| del self.leftover[-1] |
| else: |
| self.lists[0].setcontent(None) |
| self.lists[0].active = 0 |
| |
| # create some visual feedback when 'scrolling' the lists to the left or to the right |
| def scroll(self, leftright): # leftright should be 1 or -1 |
| # first, build a region containing all list rectangles |
| myregion = Qd.NewRgn() |
| mylastregion = Qd.NewRgn() |
| for list in self.lists: |
| AddRect2Rgn(list.rect, myregion) |
| AddRect2Rgn(list.rect, mylastregion) |
| # set the pen, but save it's state first |
| self.SetPort() |
| save = Qd.GetPenState() |
| Qd.PenPat(Qd.qd.gray) |
| Qd.PenMode(srcXor) |
| # how far do we have to scroll? |
| distance = self.lists[1].rect[0] - self.lists[0].rect[0] |
| step = 30 |
| lasttime = time.clock() # for delay |
| # do it |
| for i in range(0, distance, step): |
| if i <> 0: |
| Qd.FrameRgn(mylastregion) # erase last region |
| Qd.OffsetRgn(mylastregion, step * leftright, 0) |
| # draw gray region |
| Qd.FrameRgn(myregion) |
| Qd.OffsetRgn(myregion, step * leftright, 0) |
| while time.clock() - lasttime < 0.05: |
| pass # delay |
| lasttime = time.clock() |
| # clean up after your dog |
| Qd.FrameRgn(mylastregion) |
| Qd.SetPenState(save) |
| |
| def reset(self): |
| for list in self.lists: |
| point = (0,0) |
| ok, point = list.list.LGetSelect(1, point) |
| if ok: |
| sel = list.keylist[point[1]] |
| list.setcontent(list.content, list.title) |
| if ok: |
| list.list.LSetSelect(1, (0, list.keylist.index(sel))) |
| list.list.LAutoScroll() |
| |
| def do_itemhit(self, item, event): |
| if item in self.listitems: |
| self.do_listhit(event, item) |
| elif item == MAIN_LEFT: |
| self.do_leftbutton() |
| elif item == MAIN_RIGHT: |
| self.do_rightbutton() |
| elif item == MAIN_CLOSE: |
| self.close() |
| elif item == MAIN_RESET: |
| self.reset() |
| |
| # helper function that returns a short string containing the type of an arbitrary object |
| # eg: cleantype("wat is dit nu weer?") -> '(string)' |
| def cleantype(obj): |
| # type() typically returns something like: <type 'string'> |
| items = string.split(str(type(obj)), "'") |
| if len(items) == 3: |
| return '(' + items[1] + ')' |
| else: |
| # just in case, I don't know. |
| return str(type(obj)) |
| |
| # helper for VarBrowser.scroll |
| def AddRect2Rgn(theRect, theRgn): |
| rRgn = Qd.NewRgn() |
| Qd.RectRgn(rRgn, theRect) |
| Qd.UnionRgn(rRgn, theRgn, theRgn) |
| |
| |
| if __name__ == "__main__": |
| main() |