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authorGuido van Rossum <guido@python.org>1990-11-05 19:44:36 (GMT)
committerGuido van Rossum <guido@python.org>1990-11-05 19:44:36 (GMT)
commit2e4496710494391b12a8553f652494c035bae340 (patch)
tree45d17cfebddc961fb1316c7a4514d10e62e05e1d /Lib/stdwin/Split.py
parent0c89ec778d684a13a656b6b3462ae7dfd2837148 (diff)
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Initial revision
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-rwxr-xr-xLib/stdwin/Split.py113
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diff --git a/Lib/stdwin/Split.py b/Lib/stdwin/Split.py
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+++ b/Lib/stdwin/Split.py
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+# Generic Split implementation.
+# Use as a base class for other splits.
+
+Error = 'Split.Error' # Exception
+
+import rect
+from util import remove
+
+class Split():
+ #
+ # Calls from creator
+ # NB derived classes may add parameters to create()
+ #
+ def create(self, parent):
+ parent.addchild(self)
+ self.parent = parent
+ self.children = []
+ self.mouse_interest = []
+ self.timer_interest = []
+ self.mouse_focus = 0
+ return self
+ #
+ # Downcalls from parent to child
+ #
+ def destroy(self):
+ self.parent = 0
+ for child in self.children:
+ child.destroy()
+ self.children[:] = []
+ self.mouse_interest[:] = []
+ self.timer_interest[:] = []
+ self.mouse_focus = 0
+ #
+ def minsize(self, m): return unimpl()
+ def getbounds(self): return unimpl()
+ def setbounds(self, bounds): unimpl()
+ def draw(self, args):
+ # (Could avoid calls to children outside the area)
+ for child in self.children:
+ child.draw(args)
+ #
+ # Downcalls only made after certain upcalls
+ #
+ def mouse_down(self, detail):
+ if self.mouse_focus:
+ self.mouse_focus.mouse_down(detail)
+ p = detail[0]
+ for child in self.mouse_interest:
+ if rect.pointinrect(p, child.getbounds()):
+ self.mouse_focus = child
+ child.mouse_down(detail)
+ def mouse_move(self, detail):
+ if self.mouse_focus:
+ self.mouse_focus.mouse_move(detail)
+ def mouse_up(self, detail):
+ if self.mouse_focus:
+ self.mouse_focus.mouse_up(detail)
+ self.mouse_focus = 0
+ #
+ def timer(self):
+ for child in self.timer_interest:
+ child.timer()
+ #
+ # Upcalls from child to parent
+ #
+ def addchild(self, child):
+ if child in self.children:
+ raise Error, 'addchild: child already inlist'
+ self.children.append(child)
+ def delchild(self, child):
+ if child not in self.children:
+ raise Error, 'delchild: child not in list'
+ remove(child, self.children)
+ if child in self.mouse_interest:
+ remove(child, self.mouse_interest)
+ if child in self.timer_interest:
+ remove(child, self.timer_interest)
+ if child = self.mouse_focus:
+ self.mouse_focus = 0
+ #
+ def need_mouse(self, child):
+ if child not in self.mouse_interest:
+ self.mouse_interest.append(child)
+ self.parent.need_mouse(self)
+ def no_mouse(self, child):
+ if child in self.mouse_interest:
+ remove(child, self.mouse_interest)
+ if not self.mouse_interest:
+ self.parent.no_mouse(self)
+ #
+ def need_timer(self, child):
+ if child not in self.timer_interest:
+ self.timer_interest.append(child)
+ self.parent.need_timer(self)
+ def no_timer(self, child):
+ if child in self.timer_interest:
+ remove(child, self.timer_interest)
+ if not self.timer_interest:
+ self.parent.no_timer(self)
+ #
+ # The rest are transparent:
+ #
+ def begindrawing(self):
+ return self.parent.begindrawing()
+ def beginmeasuring(self):
+ return self.parent.beginmeasuring()
+ #
+ def change(self, area):
+ self.parent.change(area)
+ def scroll(self, args):
+ self.parent.scroll(args)
+ def settimer(self, itimer):
+ self.parent.settimer(itimer)