def yview(self, *args):
## callback for vertscrollbar_command
# args can be ('scroll', number, type) where type is page or unit
# or ('moveto', '0.2854982')
#print args
if args[0] == "scroll":
# ('scroll', '1', 'pages') when click on back of bar
# ('scroll', '1', 'units') when click on bar arrow
self.yview_scroll(args[1], args[2])
else:
# ('moveto', '0.350939') when dragging bar
percent = float(args[1])
line = int(self.nbLines * float(percent))
#print 'GAGA', line, self.firstVisibleNodeLineNum
if self.firstVisibleNodeLineNum != line:
v = self.scrollView(line - self.firstVisibleNodeLineNum)
if v:
# compute percentage of motion
total = self.nbLines + (self.headerHeight /
float(self.nodeHeight))
percent = self.firstVisibleNodeLineNum / total
ScrolledCanvas.yview_moveto(self, percent)
self.redraw()
self.redrawHeader(args)
def yview_scroll(self, *args):
# mouse wheel or arrow keys up and down args = (1, 'units'), (-1, 'units')
# page up and down keys (1, 'pages')(13, 'units')
# (-1, 'pages')(-13, 'units')
# end key args = "jumping to End"
# home key args = "jumping to Home"
height = self.winfo_height() - self.headerHeight
#print 'yview_scroll', args
#height = int(self.canvas['height']) - self.headerHeight
if self.nbLines * self.nodeHeight <= height:
return
if args[1] == "pages":
# FIXME we scroll the whole thing one page
linesPerPage = int(args[0]) * (height / self.nodeHeight)
self.yview_scroll(linesPerPage, "units")
else: # it is a unit scroll of args[0] units
v = self.scrollView(int(args[0]))
if v:
ScrolledCanvas.yview_scroll(self, *args)
self.redraw()
self.redrawHeader(args)
def yview_scroll(self, *args):
# mouse wheel or arrow keys up and down args = (1, 'units'), (-1, 'units')
# page up and down keys (1, 'pages')(13, 'units')
# (-1, 'pages')(-13, 'units')
# end key args = "jumping to End"
# home key args = "jumping to Home"
height = self.winfo_height() - self.headerHeight
#print 'yview_scroll', args
#height = int(self.canvas['height']) - self.headerHeight
if self.nbLines * self.nodeHeight <= height:
return
if args[1] == "pages":
# FIXME we scroll the whole thing one page
linesPerPage = int(args[0]) * (height / self.nodeHeight)
self.yview_scroll(linesPerPage, "units")
else: # it is a unit scroll of args[0] units
v = self.scrollView(int(args[0]))
if v:
ScrolledCanvas.yview_scroll(self, *args)
self.redraw()
self.redrawHeader(args)
def yview(self, *args):
## callback for vertscrollbar_command
# args can be ('scroll', number, type) where type is page or unit
# or ('moveto', '0.2854982')
#print args
if args[0] == "scroll":
# ('scroll', '1', 'pages') when click on back of bar
# ('scroll', '1', 'units') when click on bar arrow
self.yview_scroll(args[1], args[2])
else:
# ('moveto', '0.350939') when dragging bar
percent = float(args[1])
line = int(self.nbLines * float(percent))
#print 'GAGA', line, self.firstVisibleNodeLineNum
if self.firstVisibleNodeLineNum != line:
v = self.scrollView(line - self.firstVisibleNodeLineNum)
if v:
# compute percentage of motion
total = self.nbLines+(self.headerHeight/float(self.nodeHeight))
percent = self.firstVisibleNodeLineNum/total
ScrolledCanvas.yview_moveto(self, percent)
self.redraw()
self.redrawHeader(args)
def destroy(self):
if self.root:
self.root.destroy()
ScrolledCanvas.destroy(self)
def destroy(self):
if self.root:
self.root.destroy()
ScrolledCanvas.destroy(self)