from Tkinter import *

class SearchDialogBase:

    title = "Search Dialog"

    icon = "Search"

    needwrapbutton = 1

    def __init__(self, root, engine):

        self.root = root

        self.engine = engine

        self.top = None

    def open(self, text, searchphrase=None):

        self.text = text

        if not self.top:

            self.create_widgets()

        else:

            self.top.deiconify()

            self.top.tkraise()

        if searchphrase:

            self.ent.delete(0,"end")

            self.ent.insert("end",searchphrase)

        self.ent.focus_set()

        self.ent.selection_range(0, "end")

        self.ent.icursor(0)

        self.top.grab_set()

    def close(self, event=None):

        if self.top:

            self.top.grab_release()

            self.top.withdraw()

    def create_widgets(self):

        top = Toplevel(self.root)

        top.bind("<Return>", self.default_command)

        top.bind("<Escape>", self.close)

        top.protocol("WM_DELETE_WINDOW", self.close)

        top.wm_title(self.title)

        top.wm_iconname(self.icon)

        self.top = top

        self.row = 0

        self.top.grid_columnconfigure(0, pad=2, weight=0)

        self.top.grid_columnconfigure(1, pad=2, minsize=100, weight=100)

        self.create_entries()

        self.create_option_buttons()

        self.create_other_buttons()

        return self.create_command_buttons()

    def make_entry(self, label, var):

        l = Label(self.top, text=label)

        l.grid(row=self.row, column=0, sticky="nw")

        e = Entry(self.top, textvariable=var, exportselection=0)

        e.grid(row=self.row, column=1, sticky="nwe")

        self.row = self.row + 1

        return e

    def make_frame(self,labeltext=None):

        if labeltext:

            l = Label(self.top, text=labeltext)

            l.grid(row=self.row, column=0, sticky="nw")

        f = Frame(self.top)

        f.grid(row=self.row, column=1, columnspan=1, sticky="nwe")

        self.row = self.row + 1

        return f

    def make_button(self, label, command, isdef=0):

        b = Button(self.buttonframe,

                   text=label, command=command,

                   default=isdef and "active" or "normal")

        cols,rows=self.buttonframe.grid_size()

        b.grid(pady=1,row=rows,column=0,sticky="ew")

        self.buttonframe.grid(rowspan=rows+1)

        return b

    def create_entries(self):

        self.ent = self.make_entry("Find:", self.engine.patvar)

    def create_option_buttons(self):

        f = self.make_frame("Options")

        btn = Checkbutton(f, anchor="w",

                variable=self.engine.revar,

                text="Regular expression")

        btn.pack(side="left", fill="both")

        if self.engine.isre():

            btn.select()

        btn = Checkbutton(f, anchor="w",

                variable=self.engine.casevar,

                text="Match case")

        btn.pack(side="left", fill="both")

        if self.engine.iscase():

            btn.select()

        btn = Checkbutton(f, anchor="w",

                variable=self.engine.wordvar,

                text="Whole word")

        btn.pack(side="left", fill="both")

        if self.engine.isword():

            btn.select()

        if self.needwrapbutton:

            btn = Checkbutton(f, anchor="w",

                    variable=self.engine.wrapvar,

                    text="Wrap around")

            btn.pack(side="left", fill="both")

            if self.engine.iswrap():

                btn.select()

    def create_other_buttons(self):

        f = self.make_frame("Direction")

        #lbl = Label(f, text="Direction: ")

        #lbl.pack(side="left")

        btn = Radiobutton(f, anchor="w",

                variable=self.engine.backvar, value=1,

                text="Up")

        btn.pack(side="left", fill="both")

        if self.engine.isback():

            btn.select()

        btn = Radiobutton(f, anchor="w",

                variable=self.engine.backvar, value=0,

                text="Down")

        btn.pack(side="left", fill="both")

        if not self.engine.isback():

            btn.select()

    def create_command_buttons(self):

        #

        # place button frame on the right

        f = self.buttonframe = Frame(self.top)

        f.grid(row=0,column=2,padx=2,pady=2,ipadx=2,ipady=2)

        b = self.make_button("close", self.close)

        b.lower()