class Spacer(Frame):
def __init__(self, parent, relief='raised', *args, **kw):
apply(Frame.__init__, (self, parent) + args, kw)
#self.grid_rowconfigure(0, weight=1)
#self.grid_columnconfigure(1, weight=1)
self.bg = self.cget('bg')
self.relief = relief
self.grid_columnconfigure(0, weight=1)
self.canvas = Canvas(self, background=self.bg, width=1, height=6)
self.canvas.grid(row=0, column=0, sticky=Tkinter.NSEW)
#self.canvas.bind('<Configure>', self.resizeCallback)
self.grid(sticky=Tkinter.EW)
self.canvasL1 = []
self.canvasL2 = []
self.canvasL3 = []
self.refresh = 0
self.event = None
self.bind('<Configure>', self.resizeAfter)
def resizeAfter(self, event):
self.event = event
if self.refresh:
return
else:
self.refresh = 1
self.after_idle(lambda: self.resize(self.event))
def resize(self, event):
m = 6
w = event.width
h = event.height
N = int(h / m)
self.canvas.config(width=w, height=h)
if self.relief == 'sunken':
fill1 = 'grey65'
fill2 = 'grey95'
else:
fill1 = 'grey95'
fill2 = 'grey65'
for i in range(N):
y = 1 + (i / float(N)) * h
if i >= len(self.canvasL1):
rect1 = self.canvas.create_rectangle(4,
y + 0,
w - 5,
y + 2,
width=0,
fill=fill1)
rect2 = self.canvas.create_rectangle(5,
y + 1,
w - 4,
y + 3,
width=0,
fill=fill2)
rect3 = self.canvas.create_rectangle(5,
y + 1,
w - 5,
y + 2,
width=0,
fill=self.bg)
self.canvasL1.append(rect1)
self.canvasL2.append(rect2)
self.canvasL3.append(rect3)
else:
self.canvas.coords(self.canvasL1[i], 4, y + 0, w - 5, y + 2)
self.canvas.coords(self.canvasL2[i], 5, y + 1, w - 4, y + 3)
self.canvas.coords(self.canvasL3[i], 5, y + 1, w - 5, y + 2)
if N > len(self.canvasL1):
for i in range(N, len(self.canvasL1)):
self.canvas.delete(self.canvasL1[i])
self.canvas.delete(self.canvasL2[i])
self.canvas.delete(self.canvasL3[i])
self.refresh = 0
class PulldownMenu(Frame):
# if using indentation then should use list as stack only
# in other words only delete or insert at end
# entries entries must have attribute text_attr or if this is
# None then assume that entries entries themselves provide name
def __init__(self,
parent,
callback=None,
entries=None,
text_attr=None,
colors=None,
outline='#602000',
fill='#B05848',
label_color='#501000',
selected_index=-1,
indent='',
extra='',
sticky='w',
do_initial_callback=True,
force_callback=False,
*args,
**kw):
if (entries is None):
entries = []
Frame.__init__(self, parent, sticky=sticky, *args, **kw)
self.text_attr = text_attr
#indentation and extra string for popup information
self.indent = indent
self.extra = extra
self.callback = callback
self.do_initial_callback = do_initial_callback
self.force_callback = force_callback
frame = Frame(self)
#frame = parent
self.frame = frame
self.bg = frame.cget('bg')
self.outline = outline
self.fill = fill
self.label_color = label_color
self.menu = Menu(parent, tearoff=0, borderwidth=1, activeborderwidth=1)
self.menu.images = []
self.label = Label(self, foreground=label_color)
self.first_pass = True
#self.entries = entries
self.entries = []
self.colors = []
self.setup(entries, selected_index, colors=colors)
s = 10
self.canvas = Canvas(self, width=s, height=s, background=self.bg)
self.label.bind("<Button-1>", self.labelPopup)
# below does not work for some reason
#self.bind("<Button-1>", self.labelPopup)
# below does not work any more since can have submenus and
# no way to reach those with below since involves leaving menu
#self.menu.bind("<Leave>", self.popdown)
self.menu.bind("<Leave>", self.leave)
self.menu.bind("<Button-1>", self.buttonPress)
self.poppedUpSubmenu = False
self.canvas.bind("<Button-1>", self.canvasPopup)
self.canvas.bind("<Configure>", self.resizeCallback)
self.label.grid(row=0, column=0, sticky=Tkinter.W)
self.canvas.grid(row=0, column=1, sticky=Tkinter.E, padx=2)
def leave(self, event):
if (not self.poppedUpSubmenu):
x = event.x
y = event.y
x1 = self.menu.winfo_width()
y1 = self.menu.winfo_height()
if (x < 0) or (y < 0) or (x >= x1) or (y >= y1):
self.popdown()
def buttonPress(self, event):
if (event.widget != self.menu):
return
for n in range(len(self.entries) - 1, -1, -1):
if event.y >= self.menu.yposition(n):
break
else:
return
item = self.entries[n]
if (isinstance(item, {}.__class__) and item['kind'] == 'cascade'):
self.poppedUpSubmenu = True
else:
self.poppedUpSubmenu = False
def resizeCallback(self, *event):
w = self.canvas.winfo_width() / 2
h = self.canvas.winfo_height() / 2
self.canvas.delete('all')
self.canvas.create_polygon(1,
1,
w,
2 * h - 1,
2 * w - 1,
1,
fill=self.fill,
outline=self.outline)
def getEntry(self, entry_index, entries=None):
if not entries:
entries = self.entries
if type(entry_index) == types.TupleType:
e = entry_index[0]
if len(entry_index) > 1:
items = entries[e]['submenu']
entry = self.getEntry(entry_index[1:], items)
else:
entry = entries[e]['label']
elif (entry_index >= 0):
entry = entries[entry_index]
else:
entry = None
return entry
def getEntryText(self, entry_index, entries=None):
if not entries:
entries = self.entries
if type(entry_index) in (types.TupleType, types.ListType):
e = entry_index[0]
if len(entry_index) > 1:
items = entries[e]['submenu']
text = self.getEntryText(entry_index[1:], items)
else:
text = entries[e]['label']
elif (entry_index != -1):
#print 'getEntryText', entry_index, entries
entry = entries[entry_index]
if (self.text_attr):
text = getattr(entry, self.text_attr)
else:
text = entry
else:
text = ''
# TBD: for now text returned should not be unicode
text = str(text)
# below did not work for one person (Chinese characters??) but above did
###text = text.encode('utf-8')
return text
def setup(self, entries, selected_index, first_pass=True, colors=None):
#print 'setup', entries, selected_index
if first_pass is not None:
self.first_pass = first_pass
self.clearMenuItems()
if (entries):
e = list(entries)
else:
e = [No_entries_label]
self.entries = e
self.colors = colors or [None] * len(e)
if type(selected_index) in (types.TupleType, types.ListType):
if (not selected_index or selected_index[0] >= len(entries)):
selected_index = -1
else:
if (selected_index >= len(entries)):
selected_index = -1
if (selected_index == -1):
selected_index = 0
self.selected_index = -1 # changed in setSelectedIndex()
self.setMenuItems()
self.setSelectedIndex(selected_index)
def substituteCascadeCallbacks(self, item, selected_index):
if (item['kind'] == 'cascade'):
n = 0
for subitem in item['submenu']:
self.substituteCascadeCallbacks(subitem, selected_index + [n])
n = n + 1
else:
callback = item.get('command')
if (callback):
label = item['label']
item['command'] = lambda: self.cascadeCallback(
callback, label, tuple(selected_index))
def cascadeCallback(self, callback, label, selected_index):
self.selected_index = selected_index
self.setLabel(selected_index)
callback(selected_index, label)
def setMenuItems(self):
self.menu.images = []
for n in range(len(self.entries)):
columnbreak = 0
if n and n % 20 == 0:
columnbreak = 1
item = self.entries[n]
color = None
if n < len(self.colors):
color = self.colors[n]
if isinstance(item, {}.__class__):
if (item['kind'] == 'cascade'):
self.substituteCascadeCallbacks(item, [n])
else:
t = (self.indent * n) + self.extra + str(self.getEntryText(n))
command = lambda n=n: self.setSelectedIndex(n)
if color:
image = self.makeColorTile(color)
item = {
'kind': 'command',
'accelerator': t,
'command': command,
'image': image,
'columnbreak': columnbreak
}
else:
item = {
'kind': 'command',
'label': t,
'command': command,
'columnbreak': columnbreak
}
self.menu.addMenuItem(item)
def clearMenuItems(self):
if self.entries:
self.menu.delete(0, len(self.entries))
# below assumes entry_index is integer not tuple
def insert(self, entry_index, entry, make_selected=False, color=None):
if (self.haveNoEntries()):
if (entry_index != 0):
return
elif ((entry_index < 0) or (entry_index >= len(self.entries))):
return
self.clearMenuItems()
self.checkForNone()
self.entries.insert(entry_index, entry)
self.colors.insert(entry_index, color)
self.setMenuItems()
if (make_selected or (self.selected_index == -1)):
self.setSelectedIndex(entry_index, force_callback=True)
else:
self.setSelectedIndex(self.selected_index)
# below assumes entry is integer not tuple
def append(self, entry, make_selected=False, color=None):
self.clearMenuItems()
self.checkForNone()
self.entries.append(entry)
self.colors.append(color)
self.setMenuItems()
if (make_selected or (self.selected_index == -1)):
self.setSelectedIndex(len(self.entries) - 1, force_callback=True)
else:
self.setSelectedIndex(self.selected_index)
def checkForNone(self):
if (self.haveNoEntries()):
self.entries = []
self.colors = []
self.menu.delete(0)
def haveNoEntries(self):
if (len(self.entries) == 1 and self.entries[0] == No_entries_label):
return True
else:
return False
def baseIndex(self, ind):
if type(ind) == types.TupleType:
ind = ind[0]
return ind
# below assumes entry_index is integer not tuple
def delete(self, entry_index, n=1):
if (self.haveNoEntries()):
return
if ((entry_index < 0) or (entry_index >= len(self.entries))):
return
self.clearMenuItems()
n1 = entry_index
n2 = n1 + n
m = self.baseIndex(self.selected_index)
del self.entries[n1:n2]
del self.colors[n1:n2]
if (not self.entries):
self.entries = [No_entries_label]
self.colors = [None]
self.setMenuItems()
if ((m >= n1) and (m < n2)):
if (n1 == 0):
selected_index = 0
else:
selected_index = n1 - 1
self.setSelectedIndex(selected_index, force_callback=True)
def replace(self, entries, selected_index=-1, colors=None):
self.menu.delete(0, len(self.entries))
self.setup(entries, selected_index, first_pass=False, colors=colors)
def popdown(self, *event):
self.menu.unpost()
def setLabel(self, selected_index):
text = self.getEntryText(selected_index)
if (not text):
text = self.extra # arbitrary
self.label.set(text=text)
def labelPopup(self, event):
self.poppedUpSubmenu = False
s = self.baseIndex(self.selected_index)
x = event.x_root - event.x + 2
y = event.y_root - event.y - \
max(0, s) * (self.label.winfo_height() + 1)
self.menu.post(x, y)
def canvasPopup(self, event):
s = self.baseIndex(self.selected_index)
x = event.x_root - event.x - self.label.winfo_width() + 2
y = event.y_root - event.y - \
max(0, s) * (self.label.winfo_height() + 1) + \
self.canvas.winfo_height() - self.label.winfo_height()
self.menu.post(x, y)
def getSelectedIndex(self):
return self.selected_index
def setSelectedIndex(self, selected_index, force_callback=False):
if (force_callback or self.force_callback or \
(selected_index != self.selected_index)):
#print 'setSelectedIndex', self.entries, selected_index, self.selected_index, self.first_pass
self.selected_index = selected_index
self.setLabel(selected_index)
if (self.callback):
if (self.haveNoEntries()):
if (not self.first_pass):
self.callback(-1, None)
elif (selected_index != -1):
if (not self.first_pass or self.do_initial_callback):
self.callback(selected_index,
self.entries[selected_index])
self.first_pass = False
def get(self):
return self.getSelected()
def getSelected(self):
ind = self.getSelectedIndex()
if (ind == -1):
return None
else:
return self.getEntry(ind)
def set(self, selected):
self.setSelected(selected)
def findEntryIndex(self, entry, entries=None):
#print 'findEntryIndex1', entry, entries
if (entries):
noEntries = True
else:
noEntries = False
entries = self.entries
try:
ind = entries.index(entry)
return ind
except:
pass
#print 'findEntryIndex2', entry, entries
for n in range(len(entries)):
e = entries[n]
#print 'findEntryIndex3', entry, e
if e == entry:
if noEntries:
return [n]
else:
return n
elif type(e) == types.DictType:
if (len(entries) > 1):
try:
ind = self.findEntryIndex(entry, e['submenu'])
return [n] + ind
except:
pass
else:
if (entry == e['label']):
return [n]
raise 'unknown entry "%s"' % entry
# selects first item found in entries which matches
def setSelected(self, selected):
#print 'setSelected1', selected, type(selected), self.entries
try:
selected_index = self.findEntryIndex(selected)
except:
#selected_index = -1
return
#print 'setSelected2', selected_index
self.setSelectedIndex(selected_index)
def makeColorTile(self, color):
image = Tkinter.PhotoImage()
self.menu.images.append(image)
if type(color) == type([]):
colors = [scaleColor(self.menu, c, 1.0) for c in color]
else:
colors = [
scaleColor(self.menu, color, 1.0),
]
cols = max(8, len(colors))
for x in range(cols):
i = x % len(colors)
c = colors[i]
for y in range(16):
image.put('{%s %s}' % (c, c), to=(2 * x, y))
return image
class ProgressBar(BasePopup):
def __init__(self,
parent,
text='',
progress=0,
total=100,
title=None,
width=200,
height=15,
transient=True,
*args,
**kw):
self.progress = float(progress)
self.cWidth = width
self.cHeight = height
self.total = float(total) or 1.0
self.text = text
BasePopup.__init__(self,
parent=parent,
title=title or 'Progress Bar',
transient=transient,
*args,
**kw)
def body(self, parent):
self.bw = 2 # borderwidth
width = self.cWidth + self.bw
height = self.cHeight + self.bw
self.label = Label(parent, text=self.text)
self.label.grid(row=0, column=0, sticky=Tkinter.W)
self.percent = Label(parent, text=' %')
self.percent.grid(row=0, column=2, sticky=Tkinter.W)
self.canvas = Canvas(parent,
background='grey70',
width=width,
height=height)
self.canvas.grid(row=0, column=1, sticky=Tkinter.W)
self.canvas.create_rectangle(0,
0,
width,
height,
outline='black',
width=self.bw)
self.bar = self.canvas.create_rectangle(self.bw,
self.bw,
self.bw,
self.cHeight,
outline='#B05848',
fill='#B05848',
width=self.bw)
self.update()
def update(self):
p = self.progress / self.total
width = int(self.cWidth * p)
self.canvas.coords(self.bar, self.bw, self.bw, width, self.cHeight)
self.percent.set(' %3.1d' % int(100 * p) + "%")
self.label.set(self.text)
self.update_idletasks()
if self.progress == self.total:
time.sleep(0.1)
self.close()
def increment(self, n=1):
p = self.progress + n
self.progress = max(min(self.total, p), 0)
self.update()
def get(self):
return self.progress / self.total
def set(self, value):
if value <= 1:
self.progress = float(value) * self.total
elif value <= self.total:
self.progress = float(value)
else:
raise 'Cannot set to a value exceeding the total'
self.update()
def setText(self, text=''):
self.text = text
self.label.set(self.text)
class ScrolledCanvas(Frame):
def __init__(self,
parent,
resizeCallback=None,
width=600,
height=600,
*args,
**kw):
self.bbox = None
self.busy = 0
self.initialX = None
self.initialY = None
self.resizeCallback = resizeCallback
apply(Frame.__init__, (self, parent) + args, kw)
self.grid_rowconfigure(0, weight=1)
self.grid_columnconfigure(0, weight=1)
self.menu = Menu(self, tearoff=0, include_event=True)
self.configMenu()
self.canvas = Canvas(self,
relief='flat',
borderwidth=0,
width=width,
height=height)
self.canvas.configure(xscrollincrement=2, yscrollincrement=2)
self.canvas.grid(row=0, column=0, sticky=Tkinter.NSEW)
self.horizScrollbar = Tkinter.Scrollbar(self,
bg=self.cget('bg'),
command=self.canvas.xview,
orient=Tkinter.HORIZONTAL,
borderwidth=1)
self.vertScrollbar = Tkinter.Scrollbar(self,
bg=self.cget('bg'),
command=self.canvas.yview,
orient=Tkinter.VERTICAL,
borderwidth=1)
self.canvas.configure(xscrollcommand=self.horizScrollbar.set,
yscrollcommand=self.vertScrollbar.set)
self.canvas.bind('<Configure>', self.resizeAfter)
self.canvas.bind('<Button-1>', self.mouseButton1)
self.canvas.bind('<Button-2>', self.mouseButton2)
self.canvas.bind('<Button-3>', self.mouseButton3)
self.canvas.bind('<ButtonRelease-1>', self.mouseButtonRelease1)
self.canvas.bind('<ButtonRelease-2>', self.mouseButtonRelease2)
self.canvas.bind('<B2-Motion>', self.mouseScroll)
self.canvas.bind('<B3-Motion>', self.doNothing)
self.canvas.bind('<Motion>', self.mouseEnter)
self.canvas.bind('<Enter>', self.mouseEnter)
def doNothing(self, event):
pass
def mouseEnter(self, event):
if self.menu.winfo_ismapped():
self.removeMenu()
def refresh(self):
self.bbox = self.canvas.bbox('all')
bbox = self.bbox
if not bbox:
self.busy = 0
return
cWidth = int(self.canvas.cget('width'))
cHeight = int(self.canvas.cget('height'))
if cHeight > bbox[3] - bbox[1]:
self.vertScrollbar.grid_forget()
else:
self.vertScrollbar.grid(row=0, column=1, sticky=Tkinter.NS)
if cWidth > bbox[2] - bbox[0]:
self.horizScrollbar.grid_forget()
else:
self.horizScrollbar.grid(row=1, column=0, sticky=Tkinter.EW)
x1 = bbox[0]
y1 = bbox[1]
x2 = max(bbox[0] + cWidth, bbox[2])
y2 = max(bbox[1] + cHeight, bbox[3])
self.canvas.configure(scrollregion=(x1, y1, x2, y2))
self.update_idletasks()
self.busy = 0
def printCanvas(self, *event):
fileTypes = [FileType('PostScript', ['*.ps']), FileType('All', ['*'])]
fileSelectPopup = FileSelectPopup(self,
file_types=fileTypes,
title='Print canvas to file',
dismiss_text='Cancel',
selected_file_must_exist=False)
fileName = fileSelectPopup.getFile()
self.bbox = bbox = self.canvas.bbox('all')
w = bbox[2] - bbox[0]
h = bbox[3] - bbox[1]
self.canvas.postscript(colormode='color',
file=fileName,
x=bbox[0],
y=bbox[1],
width=w + 2,
pagewidth='21.c',
height=h + 2)
def configMenu(self):
items = [
{
'kind': 'command',
'label': 'Print to file',
'command': self.printCanvas
},
]
self.menu.setMenuItems(items)
def removeMenu(self, *event):
self.menu.unpost()
def mouseButton3(self, event):
self.menu.popupMenu(event)
def mouseButton1(self, event):
self.removeMenu()
if not self.initialX:
self.initialX = event.x
self.initialY = event.y
def mouseButton2(self, event):
self.removeMenu()
if not self.initialX:
self.initialX = event.x
self.initialY = event.y
self.initialPX = self.horizScrollbar.get()[0]
self.initialPY = self.vertScrollbar.get()[0]
def mouseButtonRelease1(self, event):
self.initialX = None
self.initialY = None
def mouseButtonRelease2(self, event):
self.initialX = None
self.initialY = None
self.initialPX = None
self.initialPY = None
def mouseScroll(self, event):
self.menu.unpost()
bbox = self.bbox
if not bbox:
return
bW = float(bbox[2] - bbox[0])
bH = float(bbox[3] - bbox[1])
cWidth = int(self.canvas.cget('width'))
cHeight = int(self.canvas.cget('height'))
if cWidth < bW:
dx = self.initialX - event.x
prop = self.initialPX + (dx / bW)
self.canvas.xview('moveto', prop)
if cHeight < bH:
dy = self.initialY - event.y
prop = self.initialPY + (dy / bH)
self.canvas.yview('moveto', prop)
def resizeAfter(self, event):
if self.busy:
return
else:
self.busy = 1
self.removeMenu()
self.after_idle(lambda: self.resize(event))
def resize(self, event):
if self.resizeCallback:
self.after_idle(
lambda: self.resizeCallback(event.width, event.height))
self.canvas.configure(width=event.width, height=event.height)
self.after_idle(self.refresh)
class ColorChooser(Frame):
def __init__(self, parent, *args, **kw):
apply(Frame.__init__, (self, parent) + args, kw)
self.grid_rowconfigure(0, weight=1)
self.grid_rowconfigure(1, weight=0)
self.grid_rowconfigure(2, weight=0)
self.grid_rowconfigure(3, weight=0)
self.canvas = Canvas(self, relief='sunken', borderwidth=2, width=150)
self.canvas.grid(row=0,
column=1,
columnspan=1,
sticky=Tkinter.NSEW,
pady=2,
padx=2)
frame = Frame(self)
frame.grid_columnconfigure(1, weight=1)
self.boxSize = 100
self.numPixels = 10
self.pixelWidth = round(self.boxSize / self.numPixels)
self.colorBox = Canvas(frame,
relief='sunken',
borderwidth=2,
width=self.boxSize + 2,
height=self.boxSize + 2)
self.colorBox.bind('<Button-1>', self.pickInColorBox)
self.colorBox.bind('<Button-2>', self.pickInColorBox)
self.colorBox.bind('<Button-3>', self.pickInColorBox)
self.colorBox.grid(row=0,
column=2,
rowspan=3,
sticky=Tkinter.NSEW,
padx=4,
pady=4)
self.pixel = []
self.colors = []
self.setupColorBox()
self.scale = Tkinter.Scale(frame,
orient=Tkinter.VERTICAL,
length=self.boxSize,
from_=0,
to=99,
label='',
showvalue=0,
command=self.refreshColorBox)
self.scale.grid(row=0,
column=3,
rowspan=3,
sticky=Tkinter.NS,
padx=4,
pady=4)
frame.grid(row=1, column=0, columnspan=2, sticky=Tkinter.NSEW)
labels = ('Red', 'Green', 'Blue')
self.labeled_scale = 3 * [None]
for n in range(3):
label = Label(frame, text=labels[n] + ':', anchor=Tkinter.W)
label.grid(row=n, column=0, sticky=Tkinter.EW)
self.labeled_scale[n] = LabeledScale(
frame,
values=range(101),
label_format='%3d',
set_callback=self.scaleCallback)
self.labeled_scale[n].grid(row=n, column=1, sticky=Tkinter.EW)
def setupColorBox(self):
pw = self.pixelWidth
np = self.numPixels
for x in range(np):
self.pixel.append([])
self.colors.append([])
for y in range(np):
rgb = hsbToRgb(0, 1 - x / float(np), 1 - y / float(np))
c = '#%02x%02x%02x' % (rgb[0] * 255, rgb[1] * 255,
rgb[2] * 255)
p = self.colorBox.create_rectangle(2 + pw * x,
2 + pw * y,
2 + (pw * x) + pw,
(2 + pw * y) + pw,
outline=c,
fill=c)
self.pixel[x].append(p)
self.colors[x].append(rgb)
def pickInColorBox(self, event):
x = int(event.x / self.pixelWidth)
y = int(event.y / self.pixelWidth)
X = min(x, self.numPixels - 1)
Y = min(y, self.numPixels - 1)
x = max(X, 0)
y = max(Y, 0)
rgb = self.colors[x][y]
self.setColor(rgb[0], rgb[1], rgb[2])
def refreshColorBox(self, H):
np = self.numPixels
H = int(H) / 100.
for x in range(np):
for y in range(np):
rgb = hsbToRgb(H, 1 - x / float(np), 1 - y / float(np))
c = '#%02x%02x%02x' % (rgb[0] * 255, rgb[1] * 255,
rgb[2] * 255)
self.colorBox.itemconfigure(self.pixel[x][y],
outline=c,
fill=c)
self.colors[x][y] = rgb
def scaleCallback(self, *index):
c = 3 * [0]
for n in range(3):
c[n] = int(2.559 * float(self.labeled_scale[n].getValue()))
color = '#%02x%02x%02x' % (c[0], c[1], c[2])
self.canvas.config(bg=color)
def setColor(self, r, g, b):
c = (r, g, b)
for n in range(3):
s = round(100.0 * c[n])
s = min(100, s)
self.labeled_scale[n].set(s)
def getColor(self):
c = 3 * [0]
for n in range(3):
c[n] = float(self.labeled_scale[n].getValue()) / 100.0
return tuple(c)
class ToggleArrow(Frame):
def __init__(self,
parent,
arrowSize=11,
outline='#5050b0',
fill='#a0a0ff',
isArrowClosed=True,
callback=None,
*args,
**kw):
self.arrowSize = arrowSize
self.isArrowClosed = isArrowClosed
self.callback = callback
apply(Frame.__init__, (self, parent) + args, kw)
bg = kw.get('bg')
if (not bg):
bg = kw.get('background')
if (not bg):
bg = parent.cget('bg')
# below does not work for some reason, instead explicitly create rectangle below
#self.canvas = Canvas(self, width=arrowSize, height=arrowSize, bg=bg)
self.canvas = Canvas(self, width=arrowSize + 3, height=arrowSize + 1)
self.canvas.grid(row=0, column=0)
# need +/-1 otherwise get line along borders
self.canvas.create_rectangle(-1,
-1,
arrowSize + 3,
arrowSize + 1,
fill=bg)
# arbitrary coords
self.arrow = self.canvas.create_polygon(0,
0,
1,
0,
1,
1,
fill=fill,
outline=outline)
self.drawArrow()
self.canvas.bind('<Button-1>', self.flipState)
def drawArrow(self):
s = self.arrowSize
if (self.isArrowClosed):
self.canvas.coords(self.arrow, 2, 0, s + 2, s / 2, 2, s)
else:
self.canvas.coords(self.arrow, 2, 0, s + 2, 0, (s / 2) + 2, s)
def flipState(self, *event):
self.isArrowClosed = not self.isArrowClosed
if (self.callback):
self.callback(self.isArrowClosed)
self.drawArrow()
class PulldownList(Frame):
# if using indentation then should use list as stack only
# in other words only delete or insert at end
# There is a 1:1 correspondance between the ordered lists of texts and
# list of objects
# categories is the category name for each text/object
# objects with the same category will go under a submenu
# of that name
def __init__(self,
parent,
callback=None,
texts=None,
objects=None,
categories=None,
colors=None,
index=0,
prefix='',
indent='',
initCallback=False,
forceCallback=False,
numbering=False,
arrowLine='#602000',
arrowFill='#B05848',
labelColor='#501000',
menuBg='#F0F0FF',
sticky='w',
*args,
**kw):
Frame.__init__(self, parent, sticky=sticky, *args, **kw)
self.callback = callback
self.texts = texts or []
self.objects = objects or []
self.categories = categories or []
self.colors = colors or []
self.prefix = prefix
self.indent = indent
self.initCallback = initCallback
self.numbering = numbering
self.arrowLine = arrowLine
self.arrowFill = arrowFill
self.labelColor = labelColor
# Current selection
self.index = None
self.object = NullText
self.rows = []
self.bg = self.cget('bg')
self.label = Label(self, foreground=labelColor)
self.canvas = Canvas(self, width=12, height=12, background=self.bg)
self.menu = Menu(self.canvas,
tearoff=False,
bg=menuBg,
relief='solid',
borderwidth=1,
activeborderwidth=1)
self.menu.images = [] # Photoimage has to remain referenced
self.setup(self.texts, self.objects, index, self.colors,
self.categories)
self.label.bind("<Button-1>", self._labelClick)
self.menu.bind("<Leave>", self._leave)
self.canvas.bind("<Button-1>", self._canvasClick)
self.canvas.bind("<Configure>", self._resizeCallback)
self.grid_columnconfigure(0, weight=1)
self.label.grid(row=0, column=0, sticky='w')
self.canvas.grid(row=0, column=1, sticky='w', padx=2)
#
# Retrieval
#
def get(self):
return (self.getText(), self.getObject())
def getSelected(self):
return self.get()
def getObject(self):
return self._fetch(self.index, self.objects)
def getText(self):
return self._fetch(self.index, self.texts)
def getSelectedIndex(self):
return self.index
#
# Setting selected
#
def set(self, item):
# Works with an object or a text
index = None
if item in self.texts:
index = list(self.texts).index(item)
elif item in self.objects:
index = list(self.objects).index(item)
if index is not None:
self.setIndex(index)
def setSelected(self, item):
self.set(item)
def setIndex(self, index, doCallback=False):
self.index = index
if self.objects:
obj = self.objects[index]
if obj is not self.object:
self.object = obj
if (doCallback
or self.initCallback) and self.texts and self.callback:
self.callback(obj)
self._updateLabel()
#
# Bulk configuration
#
def clear(self):
self.setup([], [], 0)
def setup(self, texts, objects, index, colors=None, categories=None):
self.texts = texts
nTexts = len(texts)
if not objects:
objects = texts
while len(objects) < nTexts:
objects.append(None)
self.objects = objects
if colors is None:
self.colors = [None] * nTexts
else:
while len(colors) < nTexts:
colors.append(None)
self.colors = colors
if categories is None:
self.categories = [None] * nTexts
else:
while len(categories) < nTexts:
categories.append(None)
self.categories = categories
self._setMenuItems()
self.setIndex(index or 0)
#
# In-place/minor configuration
#
def insert(self,
index,
text,
object=None,
color=None,
category=None,
select=False):
index = max(0, min(len(self.texts), index))
self.texts.insert(index, text)
self.objects.insert(index, object)
self.colors.insert(index, color)
self.categories.insert(index, category)
self._setMenuItems()
if select:
self.setIndex(index)
def append(self,
text,
object=None,
color=None,
category=None,
select=False):
self.insert(len(self.texts),
text,
object=None,
color=None,
category=None,
select=False)
def delete(self, index, howMany=1):
if index < 0:
return
elif index >= len(self.texts):
return
end = min(index + howMany, len(self.texts))
self._clearMenu()
del self.texts[index:end]
del self.objects[index:end]
del self.colors[index:end]
del self.categories[index:end]
self._setMenuItems()
index = min(len(self.texts) - 1, self.index)
self.setIndex(index)
#
# Internal methods
#
def _leave(self, event):
x = event.x
y = event.y
x1 = self.menu.winfo_width()
y1 = self.menu.winfo_height()
if (x < 0) or (y < 0) or (x >= x1) or (y >= y1):
self._popdown()
def _resizeCallback(self, *event):
c = self.canvas
w = c.winfo_width() - 1
h = c.winfo_height() - 1
c.delete('all')
c.create_rectangle(0,
0,
10,
2,
fill=self.arrowFill,
outline=self.arrowLine)
c.create_polygon(0,
4,
0,
6,
5,
11,
10,
6,
10,
4,
fill=self.arrowFill,
outline=self.arrowLine)
def _fetch(self, index, array):
if index is None:
return None
if index < 0:
index += len(array)
if index < 0:
return None
elif index >= len(array):
return None
else:
return array[index]
def _setMenuItems(self):
self._clearMenu()
self.menu.images = [] # Clear photoimages
if not self.texts and not self.menu.entrycget(1, 'label'):
item = {'kind': 'command', 'label': NullText, 'command': None}
self.menu.addMenuItem(item)
self.rows = [0]
return
topList = []
categoryDict = {}
for i in range(len(self.texts)):
text = self.texts[i]
color = self.colors[i]
category = self.categories[i]
if category:
if categoryDict.get(category) is None:
categoryDict[category] = []
topList.append((None, category, None, category))
categoryDict[category].append((i, text, color))
else:
topList.append((i, text, color, None))
row = 0
for index, text, color, cat in topList:
columnbreak = 0
if row and row % 20 == 0:
columnbreak = 1
if cat:
string = (self.indent * row) + self.prefix + text
items = []
rowB = 0
for index2, text2, color2 in categoryDict.get(cat, []):
columnbreakB = 0
if rowB and rowB % 20 == 0:
columnbreakB = 1
if self.numbering:
number = '%d%. ' % (index2 + 1)
else:
number = ''
string2 = number + self.prefix + text2
command = lambda n=index2: self.setIndex(n, True)
if color2:
image = self._makeColorTile(color2)
item2 = {
'kind': 'command',
'accelerator': string2,
'command': command,
'image': image,
'columnbreak': columnbreakB
}
else:
item2 = {
'kind': 'command',
'label': string2,
'command': command,
'columnbreak': columnbreakB
}
items.append(item2)
self.rows.append(row)
rowB += 1
item = {
'kind': 'cascade',
'label': string,
'submenu': items,
'columnbreak': columnbreak
}
else:
if self.numbering:
number = '%d%. ' % (index + 1)
else:
number = ''
string = (self.indent * row) + number + self.prefix + text
command = lambda n=index: self.setIndex(n, True)
if color:
image = self._makeColorTile(color)
item = {
'kind': 'command',
'accelerator': string,
'command': command,
'image': image,
'columnbreak': columnbreak
}
else:
item = {
'kind': 'command',
'label': string,
'command': command,
'columnbreak': columnbreak
}
self.menu.addMenuItem(item)
self.rows.append(row)
row += 1
def _clearMenu(self):
self.menu.delete(0, 'end')
self.index = 0
self.rows = []
def _popdown(self, *event):
self.menu.unpost()
def _labelClick(self, event):
s = self.rows[self.index]
#x = event.x_root - event.x + 2 + self.label.winfo_width()
x = event.x_root - 2
y = event.y_root - event.y - max(0,
s) * (self.label.winfo_height() + 1)
self.menu.post(x, y)
def _canvasClick(self, event):
s = self.rows[self.index]
x = event.x_root - event.x + 2
y = event.y_root - event.y - max(0,
s) * (self.label.winfo_height() + 1)
self.menu.post(x, y)
def _updateLabel(self):
if self.texts:
text = self.texts[self.index] or NullText
else:
text = NullText
self.label.set(text=text)
def _makeColorTile(self, color):
image = Tkinter.PhotoImage()
self.menu.images.append(image)
if type(color) == type([]):
colors = [scaleColor(self.menu, c, 1.0) for c in color]
else:
colors = [
scaleColor(self.menu, color, 1.0),
]
cols = max(8, len(colors))
for x in range(cols):
i = x % len(colors)
c = colors[i]
for y in range(16):
image.put('{%s %s}' % (c, c), to=(2 * x, y))
return image