64 lines
1.9 KiB
Python
64 lines
1.9 KiB
Python
# Abstract classes for parents and children.
|
|
#
|
|
# Do not use as base class -- this is for documentation only.
|
|
#
|
|
# Note that the tree must be built top down (create the parent,
|
|
# then add the children).
|
|
#
|
|
# Also note that the creation methods are not standardized --
|
|
# these have extra parameters dependent on the widget type.
|
|
# For historical reasons, button creation methods are called
|
|
# define() while split creation methods are called create().
|
|
|
|
class AbstractParent:
|
|
#
|
|
# Upcalls from child to parent
|
|
#
|
|
def addchild(self, child): unimpl()
|
|
def delchild(self, child): unimpl()
|
|
#
|
|
def need_mouse(self, child): unimpl()
|
|
def no_mouse(self, child): unimpl()
|
|
#
|
|
def need_timer(self, child): unimpl()
|
|
def no_timer(self, child): unimpl()
|
|
#
|
|
# XXX need_kbd, no_kbd; focus???
|
|
#
|
|
def begindrawing(self): return unimpl()
|
|
def beginmeasuring(self): return unimpl()
|
|
def getwindow(self): return unimpl() # Only for very special cases
|
|
#
|
|
def change(self, area): unimpl()
|
|
def scroll(self, (area, (dh, dv))): unimpl()
|
|
def settimer(self, itimer): unimpl()
|
|
|
|
class AbstractChild:
|
|
#
|
|
# Downcalls from parent to child
|
|
#
|
|
def destroy(self): unimpl()
|
|
#
|
|
def realize(self): return unimpl()
|
|
def getminsize(self, (m, (width, height))): return unimpl()
|
|
def getbounds(self): return unimpl()
|
|
def setbounds(self, bounds): unimpl()
|
|
def draw(self, (d, area)): unimpl()
|
|
#
|
|
# Downcalls only made after certain upcalls
|
|
#
|
|
def mouse_down(self, detail): unimpl()
|
|
def mouse_move(self, detail): unimpl()
|
|
def mouse_up(self, detail): unimpl()
|
|
#
|
|
def timer(self): unimpl()
|
|
|
|
# A "Split" is a child that manages one or more children.
|
|
# (This terminology is due to DEC SRC, except for CSplits.)
|
|
# A child of a split may be another split, a button, a slider, etc.
|
|
# Certain upcalls and downcalls can be handled transparently, but
|
|
# for others (e.g., all geometry related calls) this is not possible.
|
|
|
|
class AbstractSplit(AbstractChild, AbstractParent):
|
|
pass
|