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comparison light8/uihelpers.py @ 12:7adc65771676

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big restructuring - moved lots of things (including most panels) to other files
author drewp
date Sun, 07 Jul 2002 06:16:11 +0000
parents 45b12307c695
children 219d6fcbc28d
comparison
equal deleted inserted replaced
11:c65119b66b00 12:7adc65771676
1 """all the tiny tk helper functions""" 1 """all the tiny tk helper functions"""
2 2
3 from __future__ import nested_scopes
4 from Tkinter import * 3 from Tkinter import *
5 from Tix import *
6 from types import StringType
7
8 windowlocations = {
9 'sub' : '425x738+00+00',
10 'console' : '168x24+848+000',
11 'leveldisplay' : '144x340+870+400',
12 'cuefader' : '314x212+546+741',
13 'effect' : '24x24+0963+338',
14 'stage' : '823x683+37+030',
15 'scenes' : '504x198+462+12',
16 }
17 4
18 def make_frame(parent): 5 def make_frame(parent):
19 f = Frame(parent, bd=0, bg='black') 6 f = Frame(parent, bd=0)
20 f.pack(side='left') 7 f.pack(side='left')
21 return f 8 return f
9
22 10
23 def bindkeys(root,key, func): 11 def bindkeys(root,key, func):
24 root.bind(key, func) 12 root.bind(key, func)
25 for w in root.winfo_children(): 13 for w in root.winfo_children():
26 w.bind(key, func) 14 w.bind(key, func)
27 15
28 16
29 def toplevel_savegeometry(tl,name): 17 def toplevelat(x,y,w=None,h=None):
30 try: 18 tl=Toplevel()
31 geo = tl.geometry() 19 if w and h:
32 if not geo.startswith("1x1"): 20 tl.wm_geometry("%dx%d+%d+%d"%(w,h,x,y))
33 f=open(".light9-window-geometry-%s" % name.replace(' ','_'),'w') 21 else:
34 f.write(tl.geometry()) 22 tl.wm_geometry("+%d+%d"%(x,y))
35 # else the window never got mapped 23 return tl
36 except:
37 # it's ok if there's no saved geometry
38 pass
39 24
40 # this would get called repeatedly for each child of the window (i
41 # dont know why) so we unbind after the first Destroy event
42 tl.unbind("<Destroy>",tl._toplevelat_funcid)
43
44 def toplevelat(name, existingtoplevel=None):
45 tl = existingtoplevel or Toplevel()
46 tl.title(name)
47
48 try:
49 f=open(".light9-window-geometry-%s" % name.replace(' ','_'))
50 windowlocations[name]=f.read() # file has no newline
51 except:
52 # it's ok if there's no saved geometry
53 pass
54
55 if name in windowlocations:
56 tl.geometry(windowlocations[name])
57
58 tl._toplevelat_funcid=tl.bind("<Destroy>",lambda ev,tl=tl,name=name: toplevel_savegeometry(tl,name))
59
60 return tl
61 25
62 def toggle_slider(s): 26 def toggle_slider(s):
63 if s.get() == 0: 27 if s.get() == 0:
64 s.set(100) 28 s.set(100)
65 else: 29 else:
66 s.set(0) 30 s.set(0)
67 31
68 # for lambda callbacks 32 # for lambda callbacks
69 def printout(t): 33 def printout(t):
70 print t 34 print t
71
72 def printevent(ev):
73 for k in dir(ev):
74 if not k.startswith('__'):
75 print k,getattr(ev,k)
76 print ""
77 35
78 def eventtoparent(ev,sequence):
79 "passes an event to the parent, screws up TixComboBoxes"
80
81 wid_class = str(ev.widget.__class__)
82 if wid_class == 'Tix.ComboBox' or wid_class == 'Tix.TixSubWidget':
83 return
84
85 evdict={}
86 for x in ['state', 'time', 'y', 'x', 'serial']:
87 evdict[x]=getattr(ev,x)
88 # evdict['button']=ev.num
89 par=ev.widget.winfo_parent()
90 if par!=".":
91 ev.widget.nametowidget(par).event_generate(sequence,**evdict)
92 #else the event made it all the way to the top, unhandled
93 36
94 def colorlabel(label): 37 def colorlabel(label):
95 """color a label based on its own text""" 38 """color a label based on its own text"""
96 txt=label['text'] or "0" 39 txt=label['text'] or "0"
97 lev=float(txt)/100 40 lev=float(txt)/100
98 low=(80,80,180) 41 low=(80,80,180)
99 high=(255,55,050) 42 high=(255,55,050)
100 out = [int(l+lev*(h-l)) for h,l in zip(high,low)] 43 out = [int(l+lev*(h-l)) for h,l in zip(high,low)]
101 col="#%02X%02X%02X" % tuple(out) 44 col="#%02X%02X%02X" % tuple(out)
102 label.config(bg=col) 45 label.config(bg=col)
103
104 # TODO: get everyone to use this
105 def colorfade(low, high, percent):
106 '''not foolproof. make sure 0 < percent < 1'''
107 out = [int(l+percent*(h-l)) for h,l in zip(high,low)]
108 col="#%02X%02X%02X" % tuple(out)
109 return col
110
111 def colortotuple(anytkobj, colorname):
112 'pass any tk object and a color name, like "yellow"'
113 rgb = anytkobj.winfo_rgb(colorname)
114 return [v / 256 for v in rgb]
115
116 class Togglebutton(Button):
117 """works like a single radiobutton, but it's a button so the
118 label's on the button face, not to the side. the optional command
119 callback is called on button set, not on unset. takes a variable
120 just like a checkbutton"""
121 def __init__(self,parent,variable=None,command=None,downcolor='red',**kw):
122
123 self.oldcommand = command
124 Button.__init__(self,parent,command=self.invoke,**kw)
125
126 self._origbkg = self.cget('bg')
127 self.downcolor = downcolor
128
129 self._variable = variable
130 if self._variable:
131 self._variable.trace('w',self._varchanged)
132 self._setstate(self._variable.get())
133 else:
134 self._setstate(0)
135
136 self.bind("<Return>",self.invoke)
137 self.bind("<1>",self.invoke)
138 self.bind("<space>",self.invoke)
139
140 def _varchanged(self,*args):
141 self._setstate(self._variable.get())
142
143 def invoke(self,*ev):
144 if self._variable:
145 self._variable.set(not self.state)
146 else:
147 self._setstate(not self.state)
148
149 if self.oldcommand and self.state: # call command only when state goes to 1
150 self.oldcommand()
151 return "break"
152
153 def _setstate(self,newstate):
154 self.state = newstate
155 if newstate: # set
156 self.config(bg=self.downcolor,relief='sunken')
157 else: # unset
158 self.config(bg=self._origbkg,relief='raised')
159 return "break"
160
161
162 class FancyDoubleVar(DoubleVar):
163 def __init__(self,master=None):
164 DoubleVar.__init__(self,master)
165 self.callbacklist = {} # cbname : mode
166 self.namedtraces = {} # name : cbname
167 def trace_variable(self,mode,callback):
168 """Define a trace callback for the variable.
169
170 MODE is one of "r", "w", "u" for read, write, undefine.
171 CALLBACK must be a function which is called when
172 the variable is read, written or undefined.
173
174 Return the name of the callback.
175 """
176 cbname = self._master._register(callback)
177 self._tk.call("trace", "variable", self._name, mode, cbname)
178
179 # we build a list of the trace callbacks (the py functrions and the tcl functionnames)
180 self.callbacklist[cbname] = mode
181 # print "added trace:",callback,cbname
182
183 return cbname
184 trace=trace_variable
185 def disable_traces(self):
186 for cb,mode in self.callbacklist.items():
187 # DoubleVar.trace_vdelete(self,v[0],k)
188 self._tk.call("trace", "vdelete", self._name, mode,cb)
189 # but no master delete!
190
191 def recreate_traces(self):
192 for cb,mode in self.callbacklist.items():
193 # self.trace_variable(v[0],v[1])
194 self._tk.call("trace", "variable", self._name, mode,cb)
195
196 def trace_named(self, name, callback):
197 if name in self.namedtraces:
198 print "FancyDoubleVar: already had a trace named %s - replacing it" % name
199 self.delete_named(name)
200
201 cbname = self.trace_variable('w',callback) # this will register in self.callbacklist too
202
203 self.namedtraces[name] = cbname
204 return cbname
205
206 def delete_named(self, name):
207 if name in self.namedtraces:
208
209 cbname = self.namedtraces[name]
210
211 self.trace_vdelete('w',cbname)
212 #self._tk.call("trace","vdelete",self._name,'w',cbname)
213 print "FancyDoubleVar: successfully deleted trace named %s" % name
214 else:
215 print "FancyDoubleVar: attempted to delete named %s which wasn't set to any function" % name
216
217 def get_selection(listbox):
218 'Given a listbox, returns first selection as integer'
219 selection = int(listbox.curselection()[0]) # blech
220 return selection
221
222 if __name__=='__main__':
223 root=Tk()
224 root.tk_focusFollowsMouse()
225 iv=IntVar()
226 def cb():
227 print "cb!"
228 t = Togglebutton(root,text="testbutton",command=cb,variable=iv)
229 t.pack()
230 Entry(root,textvariable=iv).pack()
231 root.mainloop()