"""
configuration dialog
"""
from Tkinter import *
import tkMessageBox, tkColorChooser, tkFont
import string

from configHandler import idleConf
from dynOptionMenuWidget import DynOptionMenu
from tabpage import TabPageSet
from keybindingDialog import GetKeysDialog
from configSectionNameDialog import GetCfgSectionNameDialog
from configHelpSourceEdit import GetHelpSourceDialog
class ConfigDialog(Toplevel):
    """
    configuration dialog for idle
    """ 
    def __init__(self,parent,title):
        Toplevel.__init__(self, parent)
        self.configure(borderwidth=5)
        self.geometry("+%d+%d" % (parent.winfo_rootx()+20,
                parent.winfo_rooty()+30))
        #Theme Elements. Each theme element key is it's display name.
        #The first value of the tuple is the sample area tag name.
        #The second value is the display name list sort index. 
        #The third value indicates whether the element can have a foreground 
        #or background colour or both. 
        self.themeElements={'Normal Text':('normal','00'),
            'Python Keywords':('keyword','01'),
            'Python Definitions':('definition','02'),
            'Python Comments':('comment','03'),
            'Python Strings':('string','04'),
            'Selected Text':('hilite','05'),
            'Found Text':('hit','06'),
            'Cursor':('cursor','07'),
            'Error Text':('error','08'),
            'Shell Normal Text':('console','09'),
            'Shell Stdout Text':('stdout','10'),
            'Shell Stderr Text':('stderr','11')}
        self.ResetChangedItems() #load initial values in changed items dict
        self.CreateWidgets()
        self.resizable(height=FALSE,width=FALSE)
        self.transient(parent)
        self.grab_set()
        self.protocol("WM_DELETE_WINDOW", self.Cancel)
        self.parent = parent
        self.tabPages.focus_set()
        #key bindings for this dialog
        #self.bind('<Escape>',self.Cancel) #dismiss dialog, no save
        #self.bind('<Alt-a>',self.Apply) #apply changes, save
        #self.bind('<F1>',self.Help) #context help
        self.LoadConfigs()
        self.AttachVarCallbacks() #avoid callbacks during LoadConfigs 
        self.wait_window()
        
    def CreateWidgets(self):
        self.tabPages = TabPageSet(self,
                pageNames=['Fonts/Tabs','Highlighting','Keys','General'])
        self.tabPages.ChangePage()#activates default (first) page
        frameActionButtons = Frame(self)
        #action buttons
        self.buttonHelp = Button(frameActionButtons,text='Help',
                command=self.Help,takefocus=FALSE)
        self.buttonOk = Button(frameActionButtons,text='Ok',
                command=self.Ok,takefocus=FALSE)
        self.buttonApply = Button(frameActionButtons,text='Apply',
                command=self.Apply,takefocus=FALSE)
        self.buttonCancel = Button(frameActionButtons,text='Cancel',
                command=self.Cancel,takefocus=FALSE)
        self.CreatePageFontTab()
        self.CreatePageHighlight()
        self.CreatePageKeys()
        self.CreatePageGeneral()
        self.buttonHelp.pack(side=RIGHT,padx=5,pady=5)
        self.buttonOk.pack(side=LEFT,padx=5,pady=5)
        self.buttonApply.pack(side=LEFT,padx=5,pady=5)
        self.buttonCancel.pack(side=LEFT,padx=5,pady=5)
        frameActionButtons.pack(side=BOTTOM)
        self.tabPages.pack(side=TOP,expand=TRUE,fill=BOTH)
   
    def CreatePageFontTab(self):
        #tkVars
        self.fontSize=StringVar(self)
        self.fontBold=BooleanVar(self)
        self.fontName=StringVar(self)
        self.spaceNum=IntVar(self)
        self.tabCols=IntVar(self)
        self.indentBySpaces=BooleanVar(self) 
        self.editFont=tkFont.Font(self,('courier',12,'normal'))
        ##widget creation
        #body frame
        frame=self.tabPages.pages['Fonts/Tabs']['page']
        #body section frames
        frameFont=Frame(frame,borderwidth=2,relief=GROOVE)
        frameIndent=Frame(frame,borderwidth=2,relief=GROOVE)
        #frameFont
        labelFontTitle=Label(frameFont,text='Set Base Editor Font')
        frameFontName=Frame(frameFont)
        frameFontParam=Frame(frameFont)
        labelFontNameTitle=Label(frameFontName,justify=LEFT,
                text='Font :')
        self.listFontName=Listbox(frameFontName,height=5,takefocus=FALSE,
                exportselection=FALSE)
        self.listFontName.bind('<ButtonRelease-1>',self.OnListFontButtonRelease)
        scrollFont=Scrollbar(frameFontName)
        scrollFont.config(command=self.listFontName.yview)
        self.listFontName.config(yscrollcommand=scrollFont.set)
        labelFontSizeTitle=Label(frameFontParam,text='Size :')
        self.optMenuFontSize=DynOptionMenu(frameFontParam,self.fontSize,None,
            command=self.SetFontSample)
        checkFontBold=Checkbutton(frameFontParam,variable=self.fontBold,
            onvalue=1,offvalue=0,text='Bold',command=self.SetFontSample)
        frameFontSample=Frame(frameFont,relief=SOLID,borderwidth=1)
        self.labelFontSample=Label(frameFontSample,
                text='AaBbCcDdEe\nFfGgHhIiJjK\n1234567890\n#:+=(){}[]',
                justify=LEFT,font=self.editFont)
        #frameIndent
        labelIndentTitle=Label(frameIndent,text='Set Indentation Defaults')
        frameIndentType=Frame(frameIndent)
        frameIndentSize=Frame(frameIndent)
        labelIndentTypeTitle=Label(frameIndentType,
                text='Choose indentation type :')
        radioUseSpaces=Radiobutton(frameIndentType,variable=self.indentBySpaces,
            value=1,text='Tab key inserts spaces')
        radioUseTabs=Radiobutton(frameIndentType,variable=self.indentBySpaces,
            value=0,text='Tab key inserts tabs')
        labelIndentSizeTitle=Label(frameIndentSize,
                text='Choose indentation size :')
        labelSpaceNumTitle=Label(frameIndentSize,justify=LEFT,
                text='when tab key inserts spaces,\nspaces per tab')
        self.scaleSpaceNum=Scale(frameIndentSize,variable=self.spaceNum,
                orient='horizontal',tickinterval=2,from_=2,to=8)
        labeltabColsTitle=Label(frameIndentSize,justify=LEFT,
                text='when tab key inserts tabs,\ncolumns per tab')
        self.scaleTabCols=Scale(frameIndentSize,variable=self.tabCols,
                orient='horizontal',tickinterval=2,from_=2,to=8)
        #widget packing
        #body
        frameFont.pack(side=LEFT,padx=5,pady=10,expand=TRUE,fill=BOTH)
        frameIndent.pack(side=LEFT,padx=5,pady=10,fill=Y)
        #frameFont
        labelFontTitle.pack(side=TOP,anchor=W,padx=5,pady=5)
        frameFontName.pack(side=TOP,padx=5,pady=5,fill=X)
        frameFontParam.pack(side=TOP,padx=5,pady=5,fill=X)
        labelFontNameTitle.pack(side=TOP,anchor=W)
        self.listFontName.pack(side=LEFT,expand=TRUE,fill=X)
        scrollFont.pack(side=LEFT,fill=Y)
        labelFontSizeTitle.pack(side=LEFT,anchor=W)
        self.optMenuFontSize.pack(side=LEFT,anchor=W)
        checkFontBold.pack(side=LEFT,anchor=W,padx=20)
        frameFontSample.pack(side=TOP,padx=5,pady=5,expand=TRUE,fill=BOTH)
        self.labelFontSample.pack(expand=TRUE,fill=BOTH)
        #frameIndent
        labelIndentTitle.pack(side=TOP,anchor=W,padx=5,pady=5)
        frameIndentType.pack(side=TOP,padx=5,fill=X)
        frameIndentSize.pack(side=TOP,padx=5,pady=5,fill=BOTH)
        labelIndentTypeTitle.pack(side=TOP,anchor=W,padx=5,pady=5)
        radioUseSpaces.pack(side=TOP,anchor=W,padx=5)
        radioUseTabs.pack(side=TOP,anchor=W,padx=5)
        labelIndentSizeTitle.pack(side=TOP,anchor=W,padx=5,pady=5)
        labelSpaceNumTitle.pack(side=TOP,anchor=W,padx=5)
        self.scaleSpaceNum.pack(side=TOP,padx=5,fill=X)
        labeltabColsTitle.pack(side=TOP,anchor=W,padx=5)
        self.scaleTabCols.pack(side=TOP,padx=5,fill=X)
        return frame

    def CreatePageHighlight(self):
        self.builtinTheme=StringVar(self)
        self.customTheme=StringVar(self)
        self.fgHilite=BooleanVar(self)
        self.colour=StringVar(self)
        self.fontName=StringVar(self)
        self.themeIsBuiltin=BooleanVar(self) 
        self.highlightTarget=StringVar(self)
        ##widget creation
        #body frame
        frame=self.tabPages.pages['Highlighting']['page']
        #body section frames
        frameCustom=Frame(frame,borderwidth=2,relief=GROOVE)
        frameTheme=Frame(frame,borderwidth=2,relief=GROOVE)
        #frameCustom
        self.textHighlightSample=Text(frameCustom,relief=SOLID,borderwidth=1,
            font=('courier',12,''),cursor='hand2',width=10,height=10,
            takefocus=FALSE,highlightthickness=0)
        text=self.textHighlightSample
        text.bind('<Double-Button-1>',lambda e: 'break')
        text.bind('<B1-Motion>',lambda e: 'break')
        textAndTags=(('#you can click in here','comment'),('\n','normal'),
            ('#to choose items','comment'),('\n','normal'),('def','keyword'),
            (' ','normal'),('func','definition'),('(param):','normal'),
            ('\n  ','normal'),('"""string"""','string'),('\n  var0 = ','normal'),
            ("'string'",'string'),('\n  var1 = ','normal'),("'selected'",'hilite'),
            ('\n  var2 = ','normal'),("'found'",'hit'),('\n\n','normal'),
            (' error ','error'),(' ','normal'),('cursor |','cursor'),
            ('\n ','normal'),('shell','console'),(' ','normal'),('stdout','stdout'),
            (' ','normal'),('stderr','stderr'),('\n','normal'))
        for txTa in textAndTags:
            text.insert(END,txTa[0],txTa[1])
        for element in self.themeElements.keys(): 
            text.tag_bind(self.themeElements[element][0],'<ButtonPress-1>',
                lambda event,elem=element: event.widget.winfo_toplevel()
                .highlightTarget.set(elem))
        text.config(state=DISABLED)
        self.frameColourSet=Frame(frameCustom,relief=SOLID,borderwidth=1)
        frameFgBg=Frame(frameCustom)
        labelCustomTitle=Label(frameCustom,text='Set Custom Highlighting')
        buttonSetColour=Button(self.frameColourSet,text='Choose Colour for :',
            command=self.GetColour,highlightthickness=0)
        self.optMenuHighlightTarget=DynOptionMenu(self.frameColourSet,
            self.highlightTarget,None,highlightthickness=0)#,command=self.SetHighlightTargetBinding
        self.radioFg=Radiobutton(frameFgBg,variable=self.fgHilite,
            value=1,text='Foreground',command=self.SetColourSampleBinding)
        self.radioBg=Radiobutton(frameFgBg,variable=self.fgHilite,
            value=0,text='Background',command=self.SetColourSampleBinding)
        self.fgHilite.set(1)
        buttonSaveCustomTheme=Button(frameCustom, 
            text='Save as New Custom Theme',command=self.SaveAsNewTheme)
        #frameTheme
        labelThemeTitle=Label(frameTheme,text='Select a Highlighting Theme')
        labelTypeTitle=Label(frameTheme,text='Select : ')
        self.radioThemeBuiltin=Radiobutton(frameTheme,variable=self.themeIsBuiltin,
            value=1,command=self.SetThemeType,text='a Built-in Theme')
        self.radioThemeCustom=Radiobutton(frameTheme,variable=self.themeIsBuiltin,
            value=0,command=self.SetThemeType,text='a Custom Theme')
        self.optMenuThemeBuiltin=DynOptionMenu(frameTheme,
            self.builtinTheme,None,command=None)
        self.optMenuThemeCustom=DynOptionMenu(frameTheme,
            self.customTheme,None,command=None)
        self.buttonDeleteCustomTheme=Button(frameTheme,text='Delete Custom Theme')
        ##widget packing
        #body
        frameCustom.pack(side=LEFT,padx=5,pady=10,expand=TRUE,fill=BOTH)
        frameTheme.pack(side=LEFT,padx=5,pady=10,fill=Y)
        #frameCustom
        labelCustomTitle.pack(side=TOP,anchor=W,padx=5,pady=5)
        self.frameColourSet.pack(side=TOP,padx=5,pady=5,expand=TRUE,fill=X)
        frameFgBg.pack(side=TOP,padx=5,pady=0)
        self.textHighlightSample.pack(side=TOP,padx=5,pady=5,expand=TRUE,
            fill=BOTH)
        buttonSetColour.pack(side=TOP,expand=TRUE,fill=X,padx=8,pady=4)
        self.optMenuHighlightTarget.pack(side=TOP,expand=TRUE,fill=X,padx=8,pady=3)
        self.radioFg.pack(side=LEFT,anchor=E)
        self.radioBg.pack(side=RIGHT,anchor=W)
        buttonSaveCustomTheme.pack(side=BOTTOM,fill=X,padx=5,pady=5)        
        #frameTheme
        labelThemeTitle.pack(side=TOP,anchor=W,padx=5,pady=5)
        labelTypeTitle.pack(side=TOP,anchor=W,padx=5,pady=5)
        self.radioThemeBuiltin.pack(side=TOP,anchor=W,padx=5)
        self.radioThemeCustom.pack(side=TOP,anchor=W,padx=5,pady=2)
        self.optMenuThemeBuiltin.pack(side=TOP,fill=X,padx=5,pady=5)
        self.optMenuThemeCustom.pack(side=TOP,fill=X,anchor=W,padx=5,pady=5)
        self.buttonDeleteCustomTheme.pack(side=TOP,fill=X,padx=5,pady=5)
        return frame

    def CreatePageKeys(self):
        #tkVars
        self.bindingTarget=StringVar(self)
        self.builtinKeys=StringVar(self)
        self.customKeys=StringVar(self)
        self.keysAreDefault=BooleanVar(self) 
        self.keyBinding=StringVar(self)
        ##widget creation
        #body frame
        frame=self.tabPages.pages['Keys']['page']
        #body section frames
        frameCustom=Frame(frame,borderwidth=2,relief=GROOVE)
        frameKeySets=Frame(frame,borderwidth=2,relief=GROOVE)
        #frameCustom
        frameTarget=Frame(frameCustom)
        labelCustomTitle=Label(frameCustom,text='Set Custom Key Bindings')
        labelTargetTitle=Label(frameTarget,text='Action - Key(s)')
        scrollTargetY=Scrollbar(frameTarget)
        scrollTargetX=Scrollbar(frameTarget,orient=HORIZONTAL)
        self.listBindings=Listbox(frameTarget,takefocus=FALSE,
                exportselection=FALSE)
        self.listBindings.bind('<ButtonRelease-1>',self.KeyBindingSelected)
        scrollTargetY.config(command=self.listBindings.yview)
        scrollTargetX.config(command=self.listBindings.xview)
        self.listBindings.config(yscrollcommand=scrollTargetY.set)
        self.listBindings.config(xscrollcommand=scrollTargetX.set)
        self.buttonNewKeys=Button(frameCustom,text='Get New Keys for Selection',
            command=self.GetNewKeys,state=DISABLED)
        buttonSaveCustomKeys=Button(frameCustom,
                text='Save as New Custom Key Set',command=self.SaveAsNewKeySet)
        #frameKeySets
        labelKeysTitle=Label(frameKeySets,text='Select a Key Set')
        labelTypeTitle=Label(frameKeySets,text='Select : ')
        self.radioKeysBuiltin=Radiobutton(frameKeySets,variable=self.keysAreDefault,
            value=1,command=self.SetKeysType,text='a Built-in Key Set')
        self.radioKeysCustom=Radiobutton(frameKeySets,variable=self.keysAreDefault,
            value=0,command=self.SetKeysType,text='a Custom Key Set')
        self.optMenuKeysBuiltin=DynOptionMenu(frameKeySets,
            self.builtinKeys,None,command=None)
        self.optMenuKeysCustom=DynOptionMenu(frameKeySets,
            self.customKeys,None,command=None)
        self.buttonDeleteCustomKeys=Button(frameKeySets,text='Delete Custom Key Set')
        ##widget packing
        #body
        frameCustom.pack(side=LEFT,padx=5,pady=5,expand=TRUE,fill=BOTH)
        frameKeySets.pack(side=LEFT,padx=5,pady=5,fill=Y)
        #frameCustom
        labelCustomTitle.pack(side=TOP,anchor=W,padx=5,pady=5)
        buttonSaveCustomKeys.pack(side=BOTTOM,fill=X,padx=5,pady=5)        
        self.buttonNewKeys.pack(side=BOTTOM,fill=X,padx=5,pady=5)        
        frameTarget.pack(side=LEFT,padx=5,pady=5,expand=TRUE,fill=BOTH)
        #frame target
        frameTarget.columnconfigure(0,weight=1)
        frameTarget.rowconfigure(1,weight=1)
        labelTargetTitle.grid(row=0,column=0,columnspan=2,sticky=W)
        self.listBindings.grid(row=1,column=0,sticky=NSEW)
        scrollTargetY.grid(row=1,column=1,sticky=NS)
        scrollTargetX.grid(row=2,column=0,sticky=EW)
        #frameKeySets
        labelKeysTitle.pack(side=TOP,anchor=W,padx=5,pady=5)
        labelTypeTitle.pack(side=TOP,anchor=W,padx=5,pady=5)
        self.radioKeysBuiltin.pack(side=TOP,anchor=W,padx=5)
        self.radioKeysCustom.pack(side=TOP,anchor=W,padx=5,pady=2)
        self.optMenuKeysBuiltin.pack(side=TOP,fill=X,padx=5,pady=5)
        self.optMenuKeysCustom.pack(side=TOP,fill=X,anchor=W,padx=5,pady=5)
        self.buttonDeleteCustomKeys.pack(side=TOP,fill=X,padx=5,pady=5)
        return frame

    def CreatePageGeneral(self):
        #tkVars        
        self.winWidth=StringVar(self)       
        self.winHeight=StringVar(self)
        self.startupEdit=IntVar(self)       
        self.userHelpBrowser=BooleanVar(self)
        self.helpBrowser=StringVar(self)
        #widget creation
        #body
        frame=self.tabPages.pages['General']['page']
        #body section frames        
        frameRun=Frame(frame,borderwidth=2,relief=GROOVE)
        frameWinSize=Frame(frame,borderwidth=2,relief=GROOVE)
        frameHelp=Frame(frame,borderwidth=2,relief=GROOVE)
        #frameRun
        labelRunTitle=Label(frameRun,text='Startup Preferences')
        labelRunChoiceTitle=Label(frameRun,text='On startup : ')
        radioStartupEdit=Radiobutton(frameRun,variable=self.startupEdit,
            value=1,command=self.SetKeysType,text="open Edit Window")
        radioStartupShell=Radiobutton(frameRun,variable=self.startupEdit,
            value=0,command=self.SetKeysType,text='open Shell Window')
        #frameWinSize
        labelWinSizeTitle=Label(frameWinSize,text='Initial Window Size'+
                '  (in characters)')
        labelWinWidthTitle=Label(frameWinSize,text='Width')
        entryWinWidth=Entry(frameWinSize,textvariable=self.winWidth,
                width=3)
        labelWinHeightTitle=Label(frameWinSize,text='Height')
        entryWinHeight=Entry(frameWinSize,textvariable=self.winHeight,
                width=3)
        #frameHelp
        labelHelpTitle=Label(frameHelp,text='Help Options')
        frameHelpList=Frame(frameHelp)
        frameHelpListButtons=Frame(frameHelpList)
        labelHelpListTitle=Label(frameHelpList,text='Additional (html) Help Sources:')
        scrollHelpList=Scrollbar(frameHelpList)
        self.listHelp=Listbox(frameHelpList,height=5,takefocus=FALSE,
                exportselection=FALSE)
        scrollHelpList.config(command=self.listHelp.yview)
        self.listHelp.config(yscrollcommand=scrollHelpList.set)
        self.listHelp.bind('<ButtonRelease-1>',self.HelpSourceSelected)
        self.buttonHelpListEdit=Button(frameHelpListButtons,text='Edit',
                state=DISABLED,width=8,command=self.HelpListItemEdit)
        self.buttonHelpListAdd=Button(frameHelpListButtons,text='Add',
                width=8,command=self.HelpListItemAdd)
        self.buttonHelpListRemove=Button(frameHelpListButtons,text='Remove',
                state=DISABLED,width=8,command=self.HelpListItemRemove)
        checkHelpBrowser=Checkbutton(frameHelp,variable=self.userHelpBrowser,
            onvalue=1,offvalue=0,text='user specified (html) help browser:',
            command=self.OnCheckUserHelpBrowser)
        self.entryHelpBrowser=Entry(frameHelp,textvariable=self.helpBrowser,
                width=40)
        #widget packing
        #body
        frameRun.pack(side=TOP,padx=5,pady=5,fill=X)
        frameWinSize.pack(side=TOP,padx=5,pady=5,fill=X)
        frameHelp.pack(side=TOP,padx=5,pady=5,expand=TRUE,fill=BOTH)
        #frameRun
        labelRunTitle.pack(side=TOP,anchor=W,padx=5,pady=5)
        labelRunChoiceTitle.pack(side=LEFT,anchor=W,padx=5,pady=5)
        radioStartupEdit.pack(side=LEFT,anchor=W,padx=5,pady=5)
        radioStartupShell.pack(side=LEFT,anchor=W,padx=5,pady=5)     
        #frameWinSize
        labelWinSizeTitle.pack(side=LEFT,anchor=W,padx=5,pady=5)
        entryWinHeight.pack(side=RIGHT,anchor=E,padx=10,pady=5)
        labelWinHeightTitle.pack(side=RIGHT,anchor=E,pady=5)
        entryWinWidth.pack(side=RIGHT,anchor=E,padx=10,pady=5)
        labelWinWidthTitle.pack(side=RIGHT,anchor=E,pady=5)
        #frameHelp
        labelHelpTitle.pack(side=TOP,anchor=W,padx=5,pady=5)
        frameHelpListButtons.pack(side=RIGHT,padx=5,pady=5,fill=Y)
        frameHelpList.pack(side=TOP,padx=5,pady=5,expand=TRUE,fill=BOTH)
        labelHelpListTitle.pack(side=TOP,anchor=W)
        scrollHelpList.pack(side=RIGHT,anchor=W,fill=Y)
        self.listHelp.pack(side=LEFT,anchor=E,expand=TRUE,fill=BOTH)
        self.buttonHelpListEdit.pack(side=TOP,anchor=W,pady=5)
        self.buttonHelpListAdd.pack(side=TOP,anchor=W)
        self.buttonHelpListRemove.pack(side=TOP,anchor=W,pady=5)
        checkHelpBrowser.pack(side=TOP,anchor=W,padx=5)
        self.entryHelpBrowser.pack(side=TOP,anchor=W,padx=5,pady=5)
        return frame

    def AttachVarCallbacks(self):
        self.fontSize.trace_variable('w',self.VarChanged_fontSize)
        self.fontName.trace_variable('w',self.VarChanged_fontName)
        self.fontBold.trace_variable('w',self.VarChanged_fontBold)
        self.spaceNum.trace_variable('w',self.VarChanged_spaceNum)
        self.tabCols.trace_variable('w',self.VarChanged_tabCols)
        self.indentBySpaces.trace_variable('w',self.VarChanged_indentBySpaces)
        self.colour.trace_variable('w',self.VarChanged_colour)
        self.keyBinding.trace_variable('w',self.VarChanged_keyBinding)
        self.winWidth.trace_variable('w',self.VarChanged_winWidth)
        self.winHeight.trace_variable('w',self.VarChanged_winHeight)
        self.startupEdit.trace_variable('w',self.VarChanged_startupEdit)
    
    def VarChanged_fontSize(self,*params):
        value=self.fontSize.get()
        self.AddChangedItem('main','EditorWindow','font-size',value)
        
    def VarChanged_fontName(self,*params):
        value=self.fontName.get()
        self.AddChangedItem('main','EditorWindow','font',value)

    def VarChanged_fontBold(self,*params):
        value=self.fontBold.get()
        self.AddChangedItem('main','EditorWindow','font-bold',value)

    def VarChanged_indentBySpaces(self,*params):
        value=self.indentBySpaces.get()
        self.AddChangedItem('main','Indent','use-spaces',value)

    def VarChanged_spaceNum(self,*params):
        value=self.spaceNum.get()
        self.AddChangedItem('main','Indent','num-spaces',value)

    def VarChanged_tabCols(self,*params):
        value=self.tabCols.get()
        self.AddChangedItem('main','Indent','tab-cols',value)

    def VarChanged_colour(self,*params):
        value=self.colour.get()
        theme=self.customTheme.get()
        element=self.themeElements[self.highlightTarget.get()][0]
        self.AddChangedItem('highlight',theme,element,value)
        
    def VarChanged_keyBinding(self,*params):
        value=self.keyBinding.get()
        keySet=self.customKeys.get()
        event=self.listBindings.get(ANCHOR).split()[0]
        if idleConf.IsCoreBinding(event):
            #this is a core keybinding
            self.AddChangedItem('keys',keySet,event,value)
        else: #this is an extension key binding
            extName=idleConf.GetExtnNameForEvent(event)
            extKeybindSection=extName+'_cfgBindings'
            self.AddChangedItem('extensions',extKeybindSection,event,value)
        
    def VarChanged_winWidth(self,*params):
        value=self.winWidth.get()
        self.AddChangedItem('main','EditorWindow','width',value)

    def VarChanged_winHeight(self,*params):
        value=self.winHeight.get()
        self.AddChangedItem('main','EditorWindow','height',value)

    def VarChanged_startupEdit(self,*params):
        value=self.startupEdit.get()
        self.AddChangedItem('main','General','editor-on-startup',value)

    def ExtensionStateToggled(self):
        #callback for the extension enable/disable radio buttons
        value=self.extEnabled.get()
        extension=self.listExt.get(ANCHOR)
        self.AddChangedItem('extensions',extension,'enabled',value)

    def ResetChangedItems(self):
        #changedItems. When any config item is changed in this dialog, an entry
        #should be made in the relevant section (config type) of this 
        #dictionary. The key should be the config file section name and the 
        #value a dictionary, whose key:value pairs are item=value pairs for
        #that config file section.
        self.changedItems={'main':{},'highlight':{},'keys':{},'extensions':{}}

    def AddChangedItem(self,type,section,item,value):
        print type,section,item,value
        value=str(value) #make sure we use a string
        if not self.changedItems[type].has_key(section):
            self.changedItems[type][section]={}    
        self.changedItems[type][section][item]=value
    
    def GetDefaultItems(self):
        dItems={'main':{},'highlight':{},'keys':{},'extensions':{}}
        for configType in dItems.keys():
            sections=idleConf.GetSectionList('default',configType)
            for section in sections:
                dItems[configType][section]={}
                options=idleConf.defaultCfg[configType].GetOptionList(section)
                for option in options:            
                    dItems[configType][section][option]=(
                            idleConf.defaultCfg[configType].Get(section,option))
        return dItems
            
    def SetThemeType(self):
        if self.themeIsBuiltin.get():
            self.optMenuThemeBuiltin.config(state=NORMAL)
            self.optMenuThemeCustom.config(state=DISABLED)
            self.buttonDeleteCustomTheme.config(state=DISABLED)
        else:
            self.optMenuThemeBuiltin.config(state=DISABLED)
            self.radioThemeCustom.config(state=NORMAL)
            self.optMenuThemeCustom.config(state=NORMAL)
            self.buttonDeleteCustomTheme.config(state=NORMAL)

    def SetKeysType(self):
        if self.keysAreDefault.get():
            self.optMenuKeysBuiltin.config(state=NORMAL)
            self.optMenuKeysCustom.config(state=DISABLED)
            self.buttonDeleteCustomKeys.config(state=DISABLED)
        else:
            self.optMenuKeysBuiltin.config(state=DISABLED)
            self.radioKeysCustom.config(state=NORMAL)
            self.optMenuKeysCustom.config(state=NORMAL)
            self.buttonDeleteCustomKeys.config(state=NORMAL)
    
    def GetNewKeys(self):
        listIndex=self.listBindings.index(ANCHOR)
        binding=self.listBindings.get(listIndex)
        bindName=binding.split()[0] #first part, up to first space
        currentKeySequences=idleConf.GetCurrentKeySet().values()
        newKeys=GetKeysDialog(self,'Get New Keys',bindName,
                currentKeySequences).result
        if newKeys: #new keys were specified
            if self.keysAreDefault.get(): #current key set is a built-in
                message=('Your changes will be saved as a new Custom Key Set. '+
                        'Enter a name for your new Custom Key Set below.')
                newKeySet=self.GetNewKeysName(message)
                if not newKeySet: #user cancelled custom key set creation
                    self.listBindings.select_set(listIndex)
                    self.listBindings.select_anchor(listIndex)
                    return
                else: #create new custom key set based on previously active key set 
                    self.CreateNewKeySet(newKeySet)    
            self.listBindings.delete(listIndex)
            self.listBindings.insert(listIndex,bindName+' - '+newKeys)
            self.listBindings.select_set(listIndex)
            self.listBindings.select_anchor(listIndex)
            self.keyBinding.set(newKeys.result)
        else:
            self.listBindings.select_set(listIndex)
            self.listBindings.select_anchor(listIndex)

    def GetNewKeysName(self,message):
        usedNames=idleConf.GetSectionList('user','keys')
        for newName in self.changedItems['keys'].keys():
            if newName not in usedNames: usedNames.append(newName)
        newKeySet=GetCfgSectionNameDialog(self,'New Custom Key Set',
                message,usedNames).result
        return newKeySet
    
    def SaveAsNewKeySet(self):
        newKeysName=self.GetNewKeysName('New Key Set Name:')
        if newKeysName:
            self.CreateNewKeySet(newKeysName)

    def KeyBindingSelected(self,event):
        self.buttonNewKeys.config(state=NORMAL)

    def CreateNewKeySet(self,newKeySetName):
        #creates new custom key set based on the previously active key set,
        #and makes the new key set active
        if self.keysAreDefault.get(): 
            keySetName=self.builtinKeys.get()
        else:  
            keySetName=self.customKeys.get()
        #add the new key set to changedItems
        prevCoreKeys=idleConf.GetCoreKeys(keySetName)
        for event in prevCoreKeys.keys(): #add core key set to changed items
            eventName=event[2:-2] #trim off the angle brackets
            self.AddChangedItem('keys',newKeySetName,eventName,
                    string.join(prevCoreKeys[event]))
        #change gui over to the new key set
        customKeyList=idleConf.GetSectionList('user','keys')
        for newName in self.changedItems['keys'].keys():
            if newName not in customKeyList: customKeyList.append(newName)
        customKeyList.sort()
        self.optMenuKeysCustom.SetMenu(customKeyList,newKeySetName)
        self.keysAreDefault.set(0)
        self.SetKeysType()
    
    def GetColour(self):
        target=self.highlightTarget.get()
        rgbTuplet, colourString = tkColorChooser.askcolor(parent=self,
            title='Pick new colour for : '+target,
            initialcolor=self.frameColourSet.cget('bg'))
        if colourString: #user didn't cancel
            if self.themeIsBuiltin.get(): #current theme is a built-in
                message=('Your changes will be saved as a new Custom Theme. '+
                        'Enter a name for your new Custom Theme below.')
                newTheme=self.GetNewThemeName(message)
                if not newTheme: #user cancelled custom theme creation
                    return
                else: #create new custom theme based on previously active theme 
                    self.CreateNewTheme(newTheme)    
            self.colour.set(colourString)
            self.frameColourSet.config(bg=colourString)#set sample
            if self.fgHilite.get(): plane='foreground'
            else: plane='background'
            apply(self.textHighlightSample.tag_config,
                (self.themeElements[target][0],),{plane:colourString})
    
    def GetNewThemeName(self,message):
        usedNames=idleConf.GetSectionList('user','highlight')
        for newName in self.changedItems['highlight'].keys():
            if newName not in usedNames: usedNames.append(newName)
        newTheme=GetCfgSectionNameDialog(self,'New Custom Theme',
                message,usedNames).result
        return newTheme
    
    def SaveAsNewTheme(self):
        newThemeName=self.GetNewThemeName('New Theme Name:')
        if newThemeName:
            self.CreateNewTheme(newThemeName)

    def CreateNewTheme(self,newThemeName):
        #creates new custom theme based on the previously active theme,
        #and makes the new theme active
        if self.themeIsBuiltin.get(): 
            themeType='default'
            themeName=self.builtinTheme.get()
        else:  
            themeType='user'
            themeName=self.customTheme.get()
        newTheme=idleConf.GetThemeDict(themeType,themeName)
        #add the new theme to changedItems
        self.changedItems['highlight'][newThemeName]=newTheme    
        #change gui over to the new theme
        customThemeList=idleConf.GetSectionList('user','highlight')
        for newName in self.changedItems['highlight'].keys():
            if newName not in customThemeList: customThemeList.append(newName)
        customThemeList.sort()
        self.optMenuThemeCustom.SetMenu(customThemeList,newThemeName)
        self.themeIsBuiltin.set(0)
        self.SetThemeType()
    
    def OnListFontButtonRelease(self,event):
        self.fontName.set(self.listFontName.get(ANCHOR))
        self.SetFontSample()
        
    def SetFontSample(self,event=None):
        fontName=self.fontName.get()
        if self.fontBold.get(): 
            fontWeight=tkFont.BOLD
        else: 
            fontWeight=tkFont.NORMAL
        self.editFont.config(size=self.fontSize.get(),
                weight=fontWeight,family=fontName)

    def SetHighlightTargetBinding(self,*args):
        self.SetHighlightTarget()
        
    def SetHighlightTarget(self):
        if self.highlightTarget.get()=='Cursor': #bg not possible
            self.radioFg.config(state=DISABLED)
            self.radioBg.config(state=DISABLED)
            self.fgHilite.set(1)
        else: #both fg and bg can be set
            self.radioFg.config(state=NORMAL)
            self.radioBg.config(state=NORMAL)
            self.fgHilite.set(1)
        self.SetColourSample()
    
    def SetColourSampleBinding(self,*args):
        self.SetColourSample()
        
    def SetColourSample(self):
        #set the colour smaple area
        tag=self.themeElements[self.highlightTarget.get()][0]
        if self.fgHilite.get(): plane='foreground'
        else: plane='background'
        colour=self.textHighlightSample.tag_cget(tag,plane)
        self.frameColourSet.config(bg=colour)
    
    def PaintThemeSample(self):
        if self.themeIsBuiltin.get(): #a default theme
            theme=self.builtinTheme.get()
        else: #a user theme
            theme=self.customTheme.get()
        for element in self.themeElements.keys():
            colours=idleConf.GetHighlight(theme, self.themeElements[element][0])
            if element=='Cursor': #cursor sample needs special painting
                colours['background']=idleConf.GetHighlight(theme, 
                        'normal', fgBg='bg')
            apply(self.textHighlightSample.tag_config,
                (self.themeElements[element][0],),colours)
    
    def OnCheckUserHelpBrowser(self):
        if self.userHelpBrowser.get():
            self.entryHelpBrowser.config(state=NORMAL)
        else:
            self.entryHelpBrowser.config(state=DISABLED)
    
    def HelpSourceSelected(self,event):
        self.SetHelpListButtonStates()
    
    def SetHelpListButtonStates(self):
        if self.listHelp.size()<1: #no entries in list
            self.buttonHelpListEdit.config(state=DISABLED)
            self.buttonHelpListRemove.config(state=DISABLED)
        else: #there are some entries
            if self.listHelp.curselection(): #there currently is a selection
                self.buttonHelpListEdit.config(state=NORMAL)
                self.buttonHelpListRemove.config(state=NORMAL)
            else:  #there currently is not a selection
                self.buttonHelpListEdit.config(state=DISABLED)
                self.buttonHelpListRemove.config(state=DISABLED)

    def HelpListItemAdd(self):
        helpSource=GetHelpSourceDialog(self,'New Help Source').result
        if helpSource:
            self.userHelpList.append( (helpSource[0],helpSource[1]) )
            self.listHelp.insert(END,helpSource[0]+'  '+helpSource[1])
            self.UpdateUserHelpChangedItems()
        self.SetHelpListButtonStates()
    
    def HelpListItemEdit(self):
        itemIndex=self.listHelp.index(ANCHOR)
        helpSource=self.userHelpList[itemIndex]
        newHelpSource=GetHelpSourceDialog(self,'New Help Source',
                menuItem=helpSource[0],filePath=helpSource[1]).result
        if (not newHelpSource) or (newHelpSource==helpSource):
            return #no changes
        self.userHelpList[itemIndex]=newHelpSource
        self.listHelp.delete(itemIndex)
        self.listHelp.insert(itemIndex,newHelpSource[0]+'  '+newHelpSource[1])
        self.UpdateUserHelpChangedItems()
        self.SetHelpListButtonStates()
    
    def HelpListItemRemove(self):
        itemIndex=self.listHelp.index(ANCHOR)
        del(self.userHelpList[itemIndex])
        self.listHelp.delete(itemIndex)
        self.UpdateUserHelpChangedItems()
        self.SetHelpListButtonStates()
    
    def UpdateUserHelpChangedItems(self):
        #clear and rebuild the HelpFiles secion in self.changedItems
        if self.changedItems['main'].has_key('HelpFiles'):
            del(self.changedItems['main']['HelpFiles'])
        for num in range(1,len(self.userHelpList)+1):
            self.AddChangedItem('main','HelpFiles',str(num),
                    string.join(self.userHelpList[num-1],';'))
    
    def LoadFontCfg(self):
        ##base editor font selection list
        fonts=list(tkFont.families(self))
        fonts.sort()
        for font in fonts:
            self.listFontName.insert(END,font)
        configuredFont=idleConf.GetOption('main','EditorWindow','font',
                default='courier')
        self.fontName.set(configuredFont)
        if configuredFont in fonts:
            currentFontIndex=fonts.index(configuredFont)
            self.listFontName.see(currentFontIndex)
            self.listFontName.select_set(currentFontIndex)
            self.listFontName.select_anchor(currentFontIndex)
        ##font size dropdown
        fontSize=idleConf.GetOption('main','EditorWindow','font-size',
                default='12')
        self.optMenuFontSize.SetMenu(('10','11','12','13','14',
                '16','18','20','22'),fontSize )
        ##fontWeight
        self.fontBold.set(idleConf.GetOption('main','EditorWindow',
                'font-bold',default=0,type='bool'))
        ##font sample 
        self.SetFontSample()
    
    def LoadTabCfg(self):
        ##indent type radibuttons
        spaceIndent=idleConf.GetOption('main','Indent','use-spaces',
                default=1,type='bool')
        self.indentBySpaces.set(spaceIndent)
        ##indent sizes
        spaceNum=idleConf.GetOption('main','Indent','num-spaces',
                default=4,type='int')
        tabCols=idleConf.GetOption('main','Indent','tab-cols',
                default=4,type='int')
        self.spaceNum.set(spaceNum)
        self.tabCols.set(tabCols)
    
    def LoadThemeCfg(self):
        ##current theme type radiobutton
        self.themeIsBuiltin.set(idleConf.GetOption('main','Theme','default',
            type='bool',default=1))
        ##currently set theme
        currentOption=idleConf.CurrentTheme()
        ##load available theme option menus
        if self.themeIsBuiltin.get(): #default theme selected
            itemList=idleConf.GetSectionList('default','highlight')
            itemList.sort()
            self.optMenuThemeBuiltin.SetMenu(itemList,currentOption)
            itemList=idleConf.GetSectionList('user','highlight')
            itemList.sort()
            if not itemList:
                self.radioThemeCustom.config(state=DISABLED)
                self.customTheme.set('- no custom themes -')    
            else:
                self.optMenuThemeCustom.SetMenu(itemList,itemList[0])
        else: #user theme selected
            itemList=idleConf.GetSectionList('user','highlight')
            itemList.sort()
            self.optMenuThemeCustom.SetMenu(itemList,currentOption)
            itemList=idleConf.GetSectionList('default','highlight')
            itemList.sort()
            self.optMenuThemeBuiltin.SetMenu(itemList,itemList[0])
        self.SetThemeType()
        ##load theme element option menu
        themeNames=self.themeElements.keys()
        themeNames.sort(self.__ThemeNameIndexCompare)
        self.optMenuHighlightTarget.SetMenu(themeNames,themeNames[0])   
        self.PaintThemeSample()
        self.SetHighlightTarget()
    
    def __ThemeNameIndexCompare(self,a,b):
        if self.themeElements[a][1]<self.themeElements[b][1]: return -1
        elif self.themeElements[a][1]==self.themeElements[b][1]: return 0
        else: return 1
    
    def LoadKeyCfg(self):
        ##current keys type radiobutton
        self.keysAreDefault.set(idleConf.GetOption('main','Keys','default',
            type='bool',default=1))
        ##currently set keys
        currentOption=idleConf.CurrentKeys()
        ##load available keyset option menus
        if self.keysAreDefault.get(): #default theme selected
            itemList=idleConf.GetSectionList('default','keys')
            itemList.sort()
            self.optMenuKeysBuiltin.SetMenu(itemList,currentOption)
            itemList=idleConf.GetSectionList('user','keys')
            itemList.sort()
            if not itemList:
                self.radioKeysCustom.config(state=DISABLED)    
                self.customKeys.set('- no custom keys -')    
            else:
                self.optMenuKeysCustom.SetMenu(itemList,itemList[0])
        else: #user key set selected
            itemList=idleConf.GetSectionList('user','keys')
            itemList.sort()
            self.optMenuKeysCustom.SetMenu(itemList,currentOption)
            itemList=idleConf.GetSectionList('default','keys')
            itemList.sort()
            self.optMenuKeysBuiltin.SetMenu(itemList,itemList[0])
        self.SetKeysType()   
        ##load keyset element list
        keySet=idleConf.GetCurrentKeySet()
        bindNames=keySet.keys()
        bindNames.sort()
        for bindName in bindNames: 
            key=string.join(keySet[bindName]) #make key(s) into a string
            bindName=bindName[2:-2] #trim off the angle brackets
            self.listBindings.insert(END, bindName+' - '+key)
   
    def LoadGeneralCfg(self):
        #startup state
        self.startupEdit.set(idleConf.GetOption('main','General',
                'editor-on-startup',default=1,type='bool'))
        #initial window size
        self.winWidth.set(idleConf.GetOption('main','EditorWindow','width'))       
        self.winHeight.set(idleConf.GetOption('main','EditorWindow','height'))
        #help browsing
        self.userHelpList=idleConf.GetExtraHelpSourceList('user')
        for helpItem in self.userHelpList:
            self.listHelp.insert(END,helpItem[0]+'  '+helpItem[1])
        self.SetHelpListButtonStates()
        self.userHelpBrowser.set(idleConf.GetOption('main','General',
                'user-help-browser',default=0,type='bool'))
        self.helpBrowser.set(idleConf.GetOption('main','General',
                'user-help-browser-command',default=''))
        self.OnCheckUserHelpBrowser()
    
    def LoadConfigs(self):
        """
        load configuration from default and user config files and populate
        the widgets on the config dialog pages.
        """
        ### fonts / tabs page
        self.LoadFontCfg()        
        self.LoadTabCfg()        
        ### highlighting page
        self.LoadThemeCfg()
        ### keys page
        self.LoadKeyCfg()
        ### general page
        self.LoadGeneralCfg()
        
    def SetUserValue(self,configType,section,item,value):
        if idleConf.defaultCfg[configType].has_option(section,item):
            if idleConf.defaultCfg[configType].Get(section,item)==value:
                #the setting equals a default setting, remove it from user cfg
                return idleConf.userCfg[configType].RemoveOption(section,item)
        #if we got here set the option
        return idleConf.userCfg[configType].SetOption(section,item,value)
            
    def SaveConfigs(self):
        """
        save configuration changes to user config files.
        """
        if self.changedItems['main'].has_key('HelpFiles'):
            #this section gets completely replaced
            idleConf.userCfg['main'].remove_section('HelpFiles')
        for configType in self.changedItems.keys():
            cfgTypeHasChanges=0
            for section in self.changedItems[configType].keys():
                for item in self.changedItems[configType][section].keys():
                    value=self.changedItems[configType][section][item]
                    if self.SetUserValue(configType,section,item,value):
                        cfgTypeHasChanges=1
            if cfgTypeHasChanges: 
                idleConf.userCfg[configType].Save()                
        self.ResetChangedItems() #clear the changed items dict
         
    def Cancel(self):
        self.destroy()

    def Ok(self):
        self.Apply()
        self.destroy()

    def Apply(self):
        self.SaveConfigs()

    def Help(self):
        pass

if __name__ == '__main__':
    #test the dialog
    root=Tk()
    Button(root,text='Dialog',
            command=lambda:ConfigDialog(root,'Settings')).pack()
    root.mainloop()