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Fixed ScrolledWindow to disable scrollbars if everything is visible.

This commit is contained in:
Jack Jansen 1996-04-16 14:35:43 +00:00
parent 111fdcf86c
commit 7bfc875270
1 changed files with 48 additions and 8 deletions
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56
Mac/Lib/FrameWork.py
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@ -617,33 +617,45 @@ class ControlsWindow(Window):
class ScrolledWindow(ControlsWindow):
def __init__(self, parent):
self.barx = self.bary = None
self.barx_enabled = self.bary_enabled = 1
self.activated = 1
ControlsWindow.__init__(self, parent)
def scrollbars(self, wantx=1, wanty=1):
SetPort(self.wid)
self.barx = self.bary = None
self.barx_enabled = self.bary_enabled = 1
x0, y0, x1, y1 = self.wid.GetWindowPort().portRect
vx, vy = self.getscrollbarvalues()
if vx == None: self.barx_enabled, vx = 0, 0
if vy == None: self.bary_enabled, vy = 0, 0
if wantx:
rect = x0-1, y1-(SCROLLBARWIDTH-1), x1-(SCROLLBARWIDTH-2), y1+1
self.barx = NewControl(self.wid, rect, "", 1, vx, 0, 32767, 16, 0)
if not self.barx_enabled: self.barx.HiliteControl(255)
## InvalRect(rect)
if wanty:
rect = x1-(SCROLLBARWIDTH-1), y0-1, x1+1, y1-(SCROLLBARWIDTH-2)
self.bary = NewControl(self.wid, rect, "", 1, vy, 0, 32767, 16, 0)
if not self.bary_enabled: self.bary.HiliteControl(255)
## InvalRect(rect)
def do_postclose(self):
self.barx = self.bary = None
ControlsWindow.do_postclose(self)
def do_activate(self, onoff, event):
self.activated = onoff
if onoff:
onoff = 0
if self.barx and self.barx_enabled:
self.barx.HiliteControl(0)
if self.bary and self.bary_enabled:
self.bary.HiliteControl(0)
else:
onoff = 255
if self.barx:
self.barx.HiliteControl(onoff)
if self.bary:
self.bary.HiliteControl(onoff)
if self.barx:
self.barx.HiliteControl(255)
if self.bary:
self.bary.HiliteControl(255)
def do_postresize(self, width, height, window):
l, t, r, b = self.wid.GetWindowPort().portRect
@ -684,9 +696,37 @@ class ScrolledWindow(ControlsWindow):
SetPort(self.wid)
vx, vy = self.getscrollbarvalues()
if self.barx:
self.barx.SetControlValue(vx)
if vx == None:
self.barx.HiliteControl(255)
self.barx_enabled = 0
else:
if not self.barx_enabled:
self.barx_enabled = 1
if self.activated:
self.barx.HiliteControl(0)
self.barx.SetControlValue(vx)
if self.bary:
self.bary.SetControlValue(vy)
if vy == None:
self.bary.HiliteControl(255)
self.bary_enabled = 0
else:
if not self.bary_enabled:
self.bary_enabled = 1
if self.activated:
self.bary.HiliteControl(0)
self.bary.SetControlValue(vy)
# Auxiliary function: convert standard text/image/etc coordinate
# to something palatable as getscrollbarvalues() return
def scalebarvalue(self, absmin, absmax, curmin, curmax):
if curmin <= absmin and curmax >= absmax:
return None
if curmin <= absmin:
return 0
if curmax >= absmax:
return 32767
perc = float(curmin-absmin)/float(absmax-absmin)
return int(perc*32767)
# To be overridden: