使用箭头键在切换按钮之间移动 [英] Moving through toggle buttons using arrow keys

问题描述

作为我的previous post 我想知道是否有办法使用箭头键浏览多个切换按钮?

As a follow-up question to my previous post I was wondering if there is a way to navigate through multiple toggle buttons using the arrow keys?

我的程序需要知道用户当前正在选择哪个切换按钮.

My program needs to know which toggle button the user is currently selecting.

推荐答案

这是最终的解决方案.我知道这不是一个非常pythonic"甚至传统上很好的解决方案，但它有效.

This is the final solution. I know this is not a very "pythonic" or even conventionally good solution but it works.

#!/usr/bin/python
import wx
k = 0
Buttons = []
class Frame(wx.Frame):
    def __init__(self):
        wx.Frame.__init__(self,None, title = "Gonna Get Them Cursor Keys Workin'")
        self.panel = wx.Panel(self,wx.ID_ANY)

        self.sizer = wx.BoxSizer(wx.VERTICAL)
        self.flags_panel = wx.Panel(self, wx.ID_ANY, style = wx.SUNKEN_BORDER)

        self.sizer.Add(self.flags_panel)
        self.SetSizer(self.sizer,wx.EXPAND | wx.LEFT)
        self.flags = Flags(self.flags_panel, [8,12])#,rows = 12, columns = 8, radius = 10, hspace = 25, vspace = 25, x_start = 15, y_start = 15
        self.flags.Show()

class Flags (wx.Panel):
    def __init__(self,panel, num_flags = []):#,rows = 0,columns = 0,radius = 0, hspace = 0, vspace = 0,x_start = 0, y_start = 0
        wx.Panel.__init__(self,panel,-1, size = (350,700))

    num_rows = num_flags[0]
    num_columns = num_flags[1]
    x_pos_start = 10
    y_pos_start = 10
    xy_coords = []
    i = x_pos_start
    j = y_pos_start
    buttons = []
    self.position_tuple_array = []
    for i in range (num_columns):
        buttons.append('toggle button')
    self.ButtonValue = False
    for button in buttons:
        index = 0
        while index != 15: 
            i += 25
            index += 1
            self.position_tuple_array.append((i,j))
        xy_coords.append((i,j))
        j += 15
        i = 10
    print self.position_tuple_array
    global Buttons
    for k in range (len(self.position_tuple_array)):
        self.Button = wx.ToggleButton(self,-1,size = (10,10), pos = self.position_tuple_array[k])
        self.Button.Bind(wx.EVT_KEY_DOWN,self.OnKeyPress)
        Buttons.append(self.Button)
        self.Button.SetFocus()
        self.Button.Show()
    print Buttons
    #That text crap below goes here

def OnKeyPress(self,event):
    button = event.GetEventObject()
    keycode = event.GetKeyCode() #New Code
    print keycode
    global Buttons

    global k
    if k > len(Buttons):
        k = 0
    elif k < 0:
        k = len(Buttons) - 1
    if keycode == wx.WXK_LEFT:
        print "YOU MOVED LEFT"
        k -= 1
        Buttons[k].SetFocus()
    elif keycode == wx.WXK_RIGHT:
                    print "YOU MOVED RIGHT"
                    k += 1
                    Buttons[k].SetFocus()

            elif keycode == wx.WXK_UP:
                    print "YOU MOVED UP"
                    k -= 15
                    Buttons[k].SetFocus()

            elif keycode == wx.WXK_DOWN:
        print "YOU MOVED DOWN"
        k += 15
        Buttons[k].SetFocus()
    elif keycode == wx.WXK_RETURN:#End of New Code
        if not self.ButtonValue:
            button.SetBackgroundColour('#fe1919')
            self.ButtonValue = True
        else:
            button.SetBackgroundColour('#14e807')
            self.ButtonValue = False
    print self.position_tuple_array[k]
if __name__ == '__main__':
    app = wx.App(False)
    frame = Frame()
    frame.Show()
    app.MainLoop()  

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