Mercurial > code > home > repos > light9
annotate light8/uihelpers.py @ 112:afbdae5e1359
dmx light output is now via a separate process which light8 talks to.
dmx light output is now via a separate process which light8 talks to.
other programs can also submit dmx to the server
| author | drewp |
|---|---|
| date | Wed, 11 Jun 2003 09:36:35 +0000 |
| parents | e04f7b552bcd |
| children | 4136e92829e3 |
| rev | line source |
|---|---|
| 0 | 1 """all the tiny tk helper functions""" |
|
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- Meet Fader. He is going to grow up and be a crossfader some day
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2 |
| 47 | 3 from __future__ import nested_scopes |
| 0 | 4 from Tkinter import * |
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5 from Tix import * |
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6 from types import StringType |
| 0 | 7 |
| 68 | 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', | |
| 69 | 14 'stage' : '823x683+37+030', |
| 15 'scenes' : '504x198+462+12', | |
| 68 | 16 } |
| 17 | |
| 0 | 18 def make_frame(parent): |
| 102 | 19 f = Frame(parent, bd=0, bg='black') |
| 0 | 20 f.pack(side='left') |
| 21 return f | |
| 22 | |
| 23 def bindkeys(root,key, func): | |
| 24 root.bind(key, func) | |
| 25 for w in root.winfo_children(): | |
| 26 w.bind(key, func) | |
| 27 | |
| 84 | 28 |
| 29 def toplevel_savegeometry(tl,name): | |
| 30 try: | |
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31 geo = tl.geometry() |
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32 if not geo.startswith("1x1"): |
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33 f=open(".light9-window-geometry-%s" % name.replace(' ','_'),'w') |
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34 f.write(tl.geometry()) |
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35 # else the window never got mapped |
| 84 | 36 except: |
| 37 # it's ok if there's no saved geometry | |
| 38 pass | |
| 39 | |
| 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 | |
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44 def toplevelat(name): |
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45 tl = Toplevel() |
| 67 | 46 |
| 84 | 47 try: |
| 48 f=open(".light9-window-geometry-%s" % name.replace(' ','_')) | |
| 49 windowlocations[name]=f.read() # file has no newline | |
| 50 except: | |
| 51 # it's ok if there's no saved geometry | |
| 52 pass | |
| 53 | |
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54 if name in windowlocations: |
| 84 | 55 tl.geometry(windowlocations[name]) |
| 56 | |
| 57 tl._toplevelat_funcid=tl.bind("<Destroy>",lambda ev,tl=tl,name=name: toplevel_savegeometry(tl,name)) | |
| 68 | 58 |
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59 return tl |
| 0 | 60 |
| 61 def toggle_slider(s): | |
| 62 if s.get() == 0: | |
| 63 s.set(100) | |
| 64 else: | |
| 65 s.set(0) | |
| 66 | |
| 67 # for lambda callbacks | |
| 68 def printout(t): | |
| 69 print t | |
| 58 | 70 |
| 71 def printevent(ev): | |
| 72 for k in dir(ev): | |
| 73 if not k.startswith('__'): | |
| 74 print k,getattr(ev,k) | |
| 75 print "" | |
| 0 | 76 |
| 58 | 77 def eventtoparent(ev,sequence): |
| 102 | 78 "passes an event to the parent, screws up TixComboBoxes" |
| 79 | |
| 80 wid_class = str(ev.widget.__class__) | |
| 81 if wid_class == 'Tix.ComboBox' or wid_class == 'Tix.TixSubWidget': | |
| 82 return | |
| 83 | |
| 58 | 84 evdict={} |
| 85 for x in ['state', 'time', 'y', 'x', 'serial']: | |
| 86 evdict[x]=getattr(ev,x) | |
| 87 # evdict['button']=ev.num | |
| 88 par=ev.widget.winfo_parent() | |
| 89 if par!=".": | |
| 90 ev.widget.nametowidget(par).event_generate(sequence,**evdict) | |
| 91 #else the event made it all the way to the top, unhandled | |
| 92 | |
| 0 | 93 def colorlabel(label): |
| 94 """color a label based on its own text""" | |
| 95 txt=label['text'] or "0" | |
| 96 lev=float(txt)/100 | |
| 97 low=(80,80,180) | |
| 98 high=(255,55,050) | |
| 99 out = [int(l+lev*(h-l)) for h,l in zip(high,low)] | |
| 100 col="#%02X%02X%02X" % tuple(out) | |
| 101 label.config(bg=col) | |
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102 |
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103 # TODO: get everyone to use this |
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104 def colorfade(low, high, percent): |
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105 '''not foolproof. make sure 0 < percent < 1''' |
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106 out = [int(l+percent*(h-l)) for h,l in zip(high,low)] |
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107 col="#%02X%02X%02X" % tuple(out) |
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108 return col |
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109 |
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110 def colortotuple(anytkobj, colorname): |
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111 'pass any tk object and a color name, like "yellow"' |
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112 rgb = anytkobj.winfo_rgb(colorname) |
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113 return [v / 256 for v in rgb] |
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114 |
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115 class Togglebutton(Button): |
| 47 | 116 """works like a single radiobutton, but it's a button so the |
| 117 label's on the button face, not to the side. the optional command | |
| 118 callback is called on button set, not on unset. takes a variable | |
| 119 just like a checkbutton""" | |
| 52 | 120 def __init__(self,parent,variable=None,command=None,downcolor='red',**kw): |
| 47 | 121 |
| 122 self.oldcommand = command | |
| 123 Button.__init__(self,parent,command=self.invoke,**kw) | |
| 124 | |
| 125 self._origbkg = self.cget('bg') | |
| 52 | 126 self.downcolor = downcolor |
| 47 | 127 |
| 128 self._variable = variable | |
| 129 if self._variable: | |
| 130 self._variable.trace('w',self._varchanged) | |
| 131 self._setstate(self._variable.get()) | |
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132 else: |
| 47 | 133 self._setstate(0) |
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134 |
| 47 | 135 self.bind("<Return>",self.invoke) |
| 136 self.bind("<1>",self.invoke) | |
| 137 self.bind("<space>",self.invoke) | |
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138 |
| 47 | 139 def _varchanged(self,*args): |
| 140 self._setstate(self._variable.get()) | |
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141 |
| 47 | 142 def invoke(self,*ev): |
| 143 if self._variable: | |
| 144 self._variable.set(not self.state) | |
| 145 else: | |
| 146 self._setstate(not self.state) | |
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147 |
| 47 | 148 if self.oldcommand and self.state: # call command only when state goes to 1 |
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149 self.oldcommand() |
| 47 | 150 return "break" |
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151 |
| 47 | 152 def _setstate(self,newstate): |
| 153 self.state = newstate | |
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154 if newstate: # set |
| 52 | 155 self.config(bg=self.downcolor,relief='sunken') |
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156 else: # unset |
| 47 | 157 self.config(bg=self._origbkg,relief='raised') |
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158 return "break" |
| 47 | 159 |
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FancyDoubleVar is a DoubleVar where you can temporarily disable the callbacks
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160 |
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161 class FancyDoubleVar(DoubleVar): |
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162 def __init__(self,master=None): |
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163 DoubleVar.__init__(self,master) |
| 101 | 164 self.callbacklist = {} # cbname : mode |
| 165 self.namedtraces = {} # name : cbname | |
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166 def trace_variable(self,mode,callback): |
| 97 | 167 """Define a trace callback for the variable. |
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168 |
| 97 | 169 MODE is one of "r", "w", "u" for read, write, undefine. |
| 170 CALLBACK must be a function which is called when | |
| 171 the variable is read, written or undefined. | |
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172 |
| 97 | 173 Return the name of the callback. |
| 174 """ | |
| 175 cbname = self._master._register(callback) | |
| 176 self._tk.call("trace", "variable", self._name, mode, cbname) | |
| 177 | |
| 178 # we build a list of the trace callbacks (the py functrions and the tcl functionnames) | |
| 101 | 179 self.callbacklist[cbname] = mode |
| 98 | 180 # print "added trace:",callback,cbname |
| 97 | 181 |
| 182 return cbname | |
| 183 trace=trace_variable | |
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184 def disable_traces(self): |
| 97 | 185 for cb,mode in self.callbacklist.items(): |
| 186 # DoubleVar.trace_vdelete(self,v[0],k) | |
| 187 self._tk.call("trace", "vdelete", self._name, mode,cb) | |
| 188 # but no master delete! | |
| 189 | |
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190 def recreate_traces(self): |
| 97 | 191 for cb,mode in self.callbacklist.items(): |
| 192 # self.trace_variable(v[0],v[1]) | |
| 193 self._tk.call("trace", "variable", self._name, mode,cb) | |
| 194 | |
| 101 | 195 def trace_named(self, name, callback): |
| 196 if name in self.namedtraces: | |
| 197 print "FancyDoubleVar: already had a trace named %s - replacing it" % name | |
| 198 self.delete_named(name) | |
| 199 | |
| 200 cbname = self.trace_variable('w',callback) # this will register in self.callbacklist too | |
| 201 | |
| 202 self.namedtraces[name] = cbname | |
| 203 return cbname | |
| 204 | |
| 205 def delete_named(self, name): | |
| 206 if name in self.namedtraces: | |
| 207 | |
| 208 cbname = self.namedtraces[name] | |
| 209 | |
| 210 self.trace_vdelete('w',cbname) | |
| 211 #self._tk.call("trace","vdelete",self._name,'w',cbname) | |
| 212 print "FancyDoubleVar: successfully deleted trace named %s" % name | |
| 213 else: | |
| 214 print "FancyDoubleVar: attempted to delete named %s which wasn't set to any function" % name | |
| 215 | |
| 102 | 216 def get_selection(listbox): |
| 217 'Given a listbox, returns first selection as integer' | |
| 218 selection = int(listbox.curselection()[0]) # blech | |
| 219 return selection | |
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220 |
| 47 | 221 if __name__=='__main__': |
| 222 root=Tk() | |
| 223 root.tk_focusFollowsMouse() | |
| 224 iv=IntVar() | |
| 225 def cb(): | |
| 226 print "cb!" | |
| 227 t = Togglebutton(root,text="testbutton",command=cb,variable=iv) | |
| 228 t.pack() | |
| 229 Entry(root,textvariable=iv).pack() | |
| 230 root.mainloop() |