python - wxPython Acting on Element with Focus -

-

in program have notebook vertical box sizer buttons next it. buttons performed actions on list box had on frame. moved list boxes tabs of notebook. how can act on elements of tab button not child of notebook sibling. means variable listbox no longer in same scope.

this brings me other part of question. if had 2 listboxes side side , buttons, want buttons act on whichever listbox has mouse focus. how achieve this?

i assume 2 questions related wrong. want these buttons able act on whatever tab or items selected.

a small example wonders me understand element of wxpython. i'm having trouble docs , examples have found far. know has factory i'm not sure how , can't find examples work.

i realize think i'm having trouble understanding event argument passed functions bind. how solve issue? how it?

thanks

this fun little exercise. want traverse widgets of selected tab , check see item selected in listbox.

note: mentioned in comment question, problem see listbox has focus until moment press button. press button, button has focus.

here's 1 approach:

import random import wx  ######################################################################## class tabpanel(wx.panel):     #----------------------------------------------------------------------     def __init__(self, parent):         """"""         wx.panel.__init__(self, parent=parent)          colors = ["red", "blue", "gray", "yellow", "green"]         self.setbackgroundcolour(random.choice(colors))          lbox = wx.listbox(self, choices=colors)         sizer = wx.boxsizer(wx.vertical)         sizer.add(lbox, 0, wx.all, 10)         self.setsizer(sizer)  ######################################################################## class demoframe(wx.frame):     """     frame holds other widgets     """      #----------------------------------------------------------------------     def __init__(self):         """constructor"""                 wx.frame.__init__(self, none, wx.id_any,                            "notebook tutorial",                           size=(600,400)                           )         panel = wx.panel(self)         self.tab_num = 3          self.notebook = wx.notebook(panel)         tabone = tabpanel(self.notebook)         self.notebook.addpage(tabone, "tab 1")          tabtwo = tabpanel(self.notebook)         self.notebook.addpage(tabtwo, "tab 2")          sizer = wx.boxsizer(wx.vertical)         sizer.add(self.notebook, 1, wx.all|wx.expand, 5)          btn = wx.button(panel, label="get color")         btn.bind(wx.evt_button, self.addpage)         sizer.add(btn)          panel.setsizer(sizer)         self.layout()          self.show()      #----------------------------------------------------------------------     def addpage(self, event):         """"""         page = self.notebook.getcurrentpage()         widget in page.getchildren():             if isinstance(widget, wx.listbox):                 selection = widget.getstring(widget.getselection())                 if selection:                     print "current color = " + selection                 else:                     print "no color selected"  #---------------------------------------------------------------------- if __name__ == "__main__":     app = wx.app(false)     frame = demoframe()     app.mainloop()

i annoying error of sorts on xubuntu, think it's warning , doesn't effect running code above. getting:

python:12770): gtk-critical **: ia__gtk_tree_model_iter_nth_child: assertion 'n >= 0' failed

i don't believe worry though. it's artifact of using version of wxpython has warnings enabled.


Comments

Post a Comment

Popular posts from this blog

Java 3D LWJGL collision -

-
i making 3d java game lwjgl library, , wondering how add collision detection, player not go through models. i using obj models. here objloader class, loads models: package renderengine; import java.io.bufferedreader; import java.io.file; import java.io.filenotfoundexception; import java.io.filereader; import java.util.arraylist; import java.util.list; import models.rawmodel; import org.lwjgl.util.vector.vector2f; import org.lwjgl.util.vector.vector3f; public class objloader { public static rawmodel loadobjmodel(string filename, loader loader){ filereader fr = null; try { fr = new filereader(new file("res/"+filename+".obj")); } catch (filenotfoundexception e) { system.err.println("couldn't load file!"); e.printstacktrace(); } bufferedreader reader = new bufferedreader(fr); string line; list<vector3f> vertices = new arraylist<vector3f...
Read more

spring - SubProtocolWebSocketHandler - No handlers -

-
i have ugly error during deploying spring app on jboss. 18:11:16,025 error [org.apache.catalina.core.containerbase.[jboss.web].[default-host].[/consumer]] (msc service thread 1-7) exception sending context initialized event listener instance of class org.springframework.web.context.contextloaderlistener: org.springframework.context.applicationcontextexception: failed start bean 'subprotocolwebsockethandler'; nested exception java.lang.illegalargumentexception: no handlers @ org.springframework.context.support.defaultlifecycleprocessor.dostart(defaultlifecycleprocessor.java:176) [spring-context-4.1.3.release.jar:4.1.3.release] @ org.springframework.context.support.defaultlifecycleprocessor.access$200(defaultlifecycleprocessor.java:51) [spring-context-4.1.3.release.jar:4.1.3.release] @ org.springframework.context.support.defaultlifecycleprocessor$lifecyclegroup.start(defaultlifecycleprocessor.java:346) [spring-context-4.1.3.release.jar:4.1.3.release] @ org.s...
Read more

methods - python can't use function in submodule -

-
my folder structure this: pythonstuff/ program.py modulea/ __init__.py foo.py bar.py here's code bar.py : def hello(): print("hello, world!") here's code program.py : #!/usr/bin/env python3 modulea import bar bar.hello() i run $ python3 program.py somehow error: file "program.py", line 3, in <module> bar.hello() attributeerror: 'module' object has no attribute 'hello' edit: __init__.py file empty. edit2: after trying realized had bar.py in root directory contained hello() method. bar.py in modulea/ directory empty. add it import os __all__ = [] module in os.listdir(os.path.dirname(__file__)): if module != '__init__.py' , module[-3:] == '.py': __all__.append(module[:-3]) the init .py files required make python treat directories containing packages; done prevent directories common name, such string, unintentionally hiding v...
Read more