Implement dynamic external Viewer discovery.
PyncheWidget.__init__(): Add the extrapath argument which can be used
to pass in additional directories to search for Viewers.
diff --git a/Tools/pynche/PyncheWidget.py b/Tools/pynche/PyncheWidget.py
index 6e087e3..c8f14e7 100644
--- a/Tools/pynche/PyncheWidget.py
+++ b/Tools/pynche/PyncheWidget.py
@@ -16,7 +16,7 @@
class PyncheWidget:
- def __init__(self, version, switchboard, master=None):
+ def __init__(self, version, switchboard, master=None, extrapath=[]):
self.__sb = switchboard
self.__version = version
self.__textwin = None
@@ -64,16 +64,12 @@
#
# View menu
#
+ views = make_view_popups(self.__sb, self.__tkroot, extrapath)
viewmenu = Menu(menubar, tearoff=0)
- viewmenu.add_command(label='Text Window...',
- command=self.__popup_text,
- underline=0)
- viewmenu.add_command(label='Color List Window...',
- command=self.__popup_listwin,
- underline=6)
- viewmenu.add_command(label='Details Window...',
- command=self.__popup_details,
- underline=0)
+ for v in views:
+ viewmenu.add_command(label=v.menutext(),
+ command=v.popup,
+ underline=v.underline())
#
# Help menu
#
@@ -168,27 +164,6 @@
self.__helpwin = Helpwin(self.__root, self.__quit)
self.__helpwin.deiconify()
- def __popup_text(self, event=None):
- if not self.__textwin:
- from TextViewer import TextViewer
- self.__textwin = TextViewer(self.__sb, self.__root)
- self.__sb.add_view(self.__textwin)
- self.__textwin.deiconify()
-
- def __popup_listwin(self, event=None):
- if not self.__listwin:
- from ListViewer import ListViewer
- self.__listwin = ListViewer(self.__sb, self.__root)
- self.__sb.add_view(self.__listwin)
- self.__listwin.deiconify()
-
- def __popup_details(self, event=None):
- if not self.__detailswin:
- from DetailsViewer import DetailsViewer
- self.__detailswin = DetailsViewer(self.__sb, self.__root)
- self.__sb.add_view(self.__detailswin)
- self.__detailswin.deiconify()
-
def __load(self, event=None):
import FileDialog
import ColorDB
@@ -212,9 +187,6 @@
continue
break
self.__sb.set_colordb(colordb)
- if self.__listwin:
- self.__listwin.flush()
- self.__sb.update_views_current()
def withdraw(self):
self.__root.withdraw()
@@ -270,3 +242,58 @@
def deiconify(self):
self.__root.deiconify()
+
+
+
+class PopupViewer:
+ def __init__(self, module, name, switchboard, root):
+ self.__m = module
+ self.__name = name
+ self.__sb = switchboard
+ self.__root = root
+ self.__menutext = module.ADDTOVIEW
+ # find the underline character
+ underline = string.find(module.ADDTOVIEW, '%')
+ if underline == -1:
+ underline = 0
+ else:
+ self.__menutext = string.replace(module.ADDTOVIEW, '%', '', 1)
+ self.__underline = underline
+ self.__window = None
+
+ def menutext(self):
+ return self.__menutext
+
+ def underline(self):
+ return self.__underline
+
+ def popup(self, event=None):
+ if not self.__window:
+ # class and module must have the same name
+ class_ = getattr(self.__m, self.__name)
+ self.__window = class_(self.__sb, self.__root)
+ self.__sb.add_view(self.__window)
+ self.__window.deiconify()
+
+ def __cmp__(self, other):
+ return cmp(self.__menutext, other.__menutext)
+
+
+def make_view_popups(switchboard, root, extrapath):
+ viewers = []
+ # where we are in the file system
+ dirs = [os.path.dirname(__file__)] + extrapath
+ for dir in dirs:
+ if dir == '':
+ dir = '.'
+ for file in os.listdir(dir):
+ if file[-9:] == 'Viewer.py':
+ name = file[:-3]
+ module = __import__(name)
+ if hasattr(module, 'ADDTOVIEW') and module.ADDTOVIEW:
+ # this is an external viewer
+ v = PopupViewer(module, name, switchboard, root)
+ viewers.append(v)
+ # sort alphabetically
+ viewers.sort()
+ return viewers