| 1 | """
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| 2 | a couple of classes for implementing partial tabbed-page like behaviour
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| 3 | """
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| 4 |
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| 5 | from Tkinter import *
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| 6 |
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| 7 | class InvalidTabPage(Exception): pass
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| 8 | class AlreadyExists(Exception): pass
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| 9 |
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| 10 | class PageTab(Frame):
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| 11 | """
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| 12 | a 'page tab' like framed button
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| 13 | """
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| 14 | def __init__(self,parent):
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| 15 | Frame.__init__(self, parent,borderwidth=2,relief=RIDGE)
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| 16 | self.button=Radiobutton(self,padx=5,pady=5,takefocus=FALSE,
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| 17 | indicatoron=FALSE,highlightthickness=0,
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| 18 | borderwidth=0,selectcolor=self.cget('bg'))
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| 19 | self.button.pack()
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| 20 |
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| 21 | class TabPageSet(Frame):
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| 22 | """
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| 23 | a set of 'pages' with TabButtons for controlling their display
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| 24 | """
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| 25 | def __init__(self,parent,pageNames=[],**kw):
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| 26 | """
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| 27 | pageNames - a list of strings, each string will be the dictionary key
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| 28 | to a page's data, and the name displayed on the page's tab. Should be
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| 29 | specified in desired page order. The first page will be the default
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| 30 | and first active page.
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| 31 | """
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| 32 | Frame.__init__(self, parent, kw)
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| 33 | self.grid_location(0,0)
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| 34 | self.columnconfigure(0,weight=1)
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| 35 | self.rowconfigure(1,weight=1)
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| 36 | self.tabBar=Frame(self)
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| 37 | self.tabBar.grid(row=0,column=0,sticky=EW)
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| 38 | self.activePage=StringVar(self)
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| 39 | self.defaultPage=''
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| 40 | self.pages={}
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| 41 | for name in pageNames:
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| 42 | self.AddPage(name)
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| 43 |
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| 44 | def ChangePage(self,pageName=None):
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| 45 | if pageName:
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| 46 | if pageName in self.pages.keys():
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| 47 | self.activePage.set(pageName)
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| 48 | else:
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| 49 | raise InvalidTabPage, 'Invalid TabPage Name'
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| 50 | ## pop up the active 'tab' only
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| 51 | for page in self.pages.keys():
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| 52 | self.pages[page]['tab'].config(relief=RIDGE)
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| 53 | self.pages[self.GetActivePage()]['tab'].config(relief=RAISED)
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| 54 | ## switch page
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| 55 | self.pages[self.GetActivePage()]['page'].lift()
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| 56 |
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| 57 | def GetActivePage(self):
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| 58 | return self.activePage.get()
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| 59 |
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| 60 | def AddPage(self,pageName):
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| 61 | if pageName in self.pages.keys():
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| 62 | raise AlreadyExists, 'TabPage Name Already Exists'
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| 63 | self.pages[pageName]={'tab':PageTab(self.tabBar),
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| 64 | 'page':Frame(self,borderwidth=2,relief=RAISED)}
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| 65 | self.pages[pageName]['tab'].button.config(text=pageName,
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| 66 | command=self.ChangePage,variable=self.activePage,
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| 67 | value=pageName)
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| 68 | self.pages[pageName]['tab'].pack(side=LEFT)
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| 69 | self.pages[pageName]['page'].grid(row=1,column=0,sticky=NSEW)
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| 70 | if len(self.pages)==1: # adding first page
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| 71 | self.defaultPage=pageName
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| 72 | self.activePage.set(self.defaultPage)
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| 73 | self.ChangePage()
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| 74 |
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| 75 | def RemovePage(self,pageName):
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| 76 | if not pageName in self.pages.keys():
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| 77 | raise InvalidTabPage, 'Invalid TabPage Name'
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| 78 | self.pages[pageName]['tab'].pack_forget()
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| 79 | self.pages[pageName]['page'].grid_forget()
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| 80 | self.pages[pageName]['tab'].destroy()
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| 81 | self.pages[pageName]['page'].destroy()
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| 82 | del(self.pages[pageName])
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| 83 | # handle removing last remaining, or default, or active page
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| 84 | if not self.pages: # removed last remaining page
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| 85 | self.defaultPage=''
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| 86 | return
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| 87 | if pageName==self.defaultPage: # set a new default page
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| 88 | self.defaultPage=\
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| 89 | self.tabBar.winfo_children()[0].button.cget('text')
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| 90 | if pageName==self.GetActivePage(): # set a new active page
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| 91 | self.activePage.set(self.defaultPage)
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| 92 | self.ChangePage()
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| 93 |
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| 94 | if __name__ == '__main__':
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| 95 | #test dialog
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| 96 | root=Tk()
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| 97 | tabPage=TabPageSet(root,pageNames=['Foobar','Baz'])
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| 98 | tabPage.pack(expand=TRUE,fill=BOTH)
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| 99 | Label(tabPage.pages['Foobar']['page'],text='Foo',pady=20).pack()
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| 100 | Label(tabPage.pages['Foobar']['page'],text='Bar',pady=20).pack()
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| 101 | Label(tabPage.pages['Baz']['page'],text='Baz').pack()
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| 102 | entryPgName=Entry(root)
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| 103 | buttonAdd=Button(root,text='Add Page',
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| 104 | command=lambda:tabPage.AddPage(entryPgName.get()))
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| 105 | buttonRemove=Button(root,text='Remove Page',
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| 106 | command=lambda:tabPage.RemovePage(entryPgName.get()))
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| 107 | labelPgName=Label(root,text='name of page to add/remove:')
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| 108 | buttonAdd.pack(padx=5,pady=5)
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| 109 | buttonRemove.pack(padx=5,pady=5)
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| 110 | labelPgName.pack(padx=5)
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| 111 | entryPgName.pack(padx=5)
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| 112 | tabPage.ChangePage()
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| 113 | root.mainloop()
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