# -----------------------------------------------------------------------
# Standalone and testing code
import sys, struct

try:
    import _idaapi
except:
    print "Please try me from inside IDA"
    sys.exit(0)

try:
    import pywraps
    pywraps_there = True
    print "Using pywraps"

    _idaapi.pyscv_init = pywraps.pyscv_init
    _idaapi.pyscv_close = pywraps.pyscv_close
    _idaapi.pyscv_add_line = pywraps.pyscv_add_line
    _idaapi.pyscv_delete = pywraps.pyscv_delete
    _idaapi.pyscv_refresh = pywraps.pyscv_refresh
    _idaapi.pyscv_show = pywraps.pyscv_show
    _idaapi.pyscv_clear_popup_menu = pywraps.pyscv_clear_popup_menu
    _idaapi.pyscv_del_line = pywraps.pyscv_del_line
    _idaapi.pyscv_get_pos = pywraps.pyscv_get_pos
    _idaapi.pyscv_refresh_current = pywraps.pyscv_refresh_current
    _idaapi.pyscv_get_current_line = pywraps.pyscv_get_current_line
    _idaapi.pyscv_is_focused = pywraps.pyscv_is_focused
    _idaapi.pyscv_add_popup_menu = pywraps.pyscv_add_popup_menu
    _idaapi.pyscv_get_line = pywraps.pyscv_get_line
    _idaapi.pyscv_jumpto = pywraps.pyscv_jumpto
    _idaapi.pyscv_edit_line = pywraps.pyscv_edit_line
    _idaapi.pyscv_patch_line = pywraps.pyscv_patch_line
    _idaapi.pyscv_insert_line = pywraps.pyscv_insert_line
    _idaapi.pyscv_count = pywraps.pyscv_count
    _idaapi.pyscv_get_selection = pywraps.pyscv_get_selection
    _idaapi.pyscv_clear_lines = pywraps.pyscv_clear_lines
    _idaapi.pyscv_get_current_word = pywraps.pyscv_get_current_word
except:
    pywraps_there = False
    print "Not using pywraps"

# -----------------------------------------------------------------------
#<pycode(py_custviewer)>
class simplecustviewer_t(object):
    """The base class for implementing simple custom viewers"""
    def __init__(self):
        self.__this = None

    def __del__(self):
        """Destructor. It also frees the associated C++ object"""
        try:
            _idaapi.pyscv_delete(self.__this)
        except:
            pass

    @staticmethod
    def __make_sl_arg(line, fgcolor=None, bgcolor=None):
        return line if (fgcolor is None and bgcolor is None) else (line, fgcolor, bgcolor)

    def Create(self, title):
        """
        Creates the custom view. This should be the first method called after instantiation

        @param title: The title of the view
        @return: Boolean whether it succeeds or fails. It may fail if a window with the same title is already open.
                 In this case better close existing windows
        """
        self.title = title
        self.__this = _idaapi.pyscv_init(self, title)
        return True if self.__this else False

    def Close(self):
        """
        Destroys the view.
        One has to call Create() afterwards.
        Show() can be called and it will call Create() internally.
        @return: Boolean
        """
        return _idaapi.pyscv_close(self.__this)

    def Show(self):
        """
        Shows an already created view. It the view was close, then it will call Create() for you
        @return: Boolean
        """
        return _idaapi.pyscv_show(self.__this)

    def Refresh(self):
        return _idaapi.pyscv_refresh(self.__this)

    def RefreshCurrent(self):
        """Refreshes the current line only"""
        return _idaapi.pyscv_refresh_current(self.__this)

    def Count(self):
        """Returns the number of lines in the view"""
        return _idaapi.pyscv_count(self.__this)

    def GetSelection(self):
        """
        Returns the selected area or None
        @return:
            - tuple(x1, y1, x2, y2)
            - None if no selection
        """
        return _idaapi.pyscv_get_selection(self.__this)

    def ClearLines(self):
        """Clears all the lines"""
        _idaapi.pyscv_clear_lines(self.__this)

    def AddLine(self, line, fgcolor=None, bgcolor=None):
        """
        Adds a colored line to the view
        @return: Boolean
        """
        return _idaapi.pyscv_add_line(self.__this, self.__make_sl_arg(line, fgcolor, bgcolor))

    def InsertLine(self, lineno, line, fgcolor=None, bgcolor=None):
        """
        Inserts a line in the given position
        @return: Boolean
        """
        return _idaapi.pyscv_insert_line(self.__this, lineno, self.__make_sl_arg(line, fgcolor, bgcolor))

    def EditLine(self, lineno, line, fgcolor=None, bgcolor=None):
        """
        Edits an existing line.
        @return: Boolean
        """
        return _idaapi.pyscv_edit_line(self.__this, lineno, self.__make_sl_arg(line, fgcolor, bgcolor))

    def PatchLine(self, lineno, offs, value):
        """Patches an existing line character at the given offset. This is a low level function. You must know what you're doing"""
        return _idaapi.pyscv_patch_line(self.__this, lineno, offs, value)

    def DelLine(self, lineno):
        """
        Deletes an existing line
        @return: Boolean
        """
        return _idaapi.pyscv_del_line(self.__this, lineno)

    def GetLine(self, lineno):
        """
        Returns a line
        @param lineno: The line number
        @return:
            Returns a tuple (colored_line, fgcolor, bgcolor) or None
        """
        return _idaapi.pyscv_get_line(self.__this, lineno)

    def GetCurrentWord(self, mouse = 0):
        """
        Returns the current word
        @param mouse: Use mouse position or cursor position
        @return: None if failed or a String containing the current word at mouse or cursor
        """
        return _idaapi.pyscv_get_current_word(self.__this, mouse)

    def GetCurrentLine(self, mouse = 0, notags = 0):
        """
        Returns the current line.
        @param mouse: Current line at mouse pos
        @param notags: If True then tag_remove() will be called before returning the line
        @return: Returns the current line (colored or uncolored) or None on failure
        """
        return _idaapi.pyscv_get_current_line(self.__this, mouse, notags)

    def GetPos(self, mouse = 0):
        """
        Returns the current cursor or mouse position.
        @param mouse: return mouse position
        @return: Returns a tuple (lineno, x, y)
        """
        return _idaapi.pyscv_get_pos(self.__this, mouse)

    def GetLineNo(self, mouse = 0):
        """Calls GetPos() and returns the current line number or -1 on failure"""
        r = self.GetPos(mouse)
        return -1 if not r else r[0]

    def Jump(self, lineno, x=0, y=0):
        return _idaapi.pyscv_jumpto(self.__this, lineno, x, y)

    def AddPopupMenu(self, title, hotkey=""):
        """
        Adds a popup menu item
        @param title: The name of the menu item
        @param hotkey: Hotkey of the item or just empty
        @return: Returns the
        """
        return _idaapi.pyscv_add_popup_menu(self.__this, title, hotkey)

    def ClearPopupMenu(self):
        """
        Clears all previously installed popup menu items.
        Use this function if you're generating menu items on the fly (in the OnPopup() callback),
        and before adding new items
        """
        _idaapi.pyscv_clear_popup_menu(self.__this)

    def IsFocused(self):
        """Returns True if the current view is the focused view"""
        return _idaapi.pyscv_is_focused(self.__this)

    def GetTForm(self):
        """
        Return the TForm hosting this view.

        @return: The TForm that hosts this view, or None.
        """
        return _idaapi.pyscv_get_tform(self.__this)

    def GetTCustomControl(self):
        """
        Return the TCustomControl underlying this view.

        @return: The TCustomControl underlying this view, or None.
        """
        return _idaapi.pyscv_get_tcustom_control(self.__this)



    # Here are all the supported events
#<pydoc>
#    def OnClick(self, shift):
#        """
#        User clicked in the view
#        @param shift: Shift flag
#        @return: Boolean. True if you handled the event
#        """
#        print "OnClick, shift=%d" % shift
#        return True
#
#    def OnDblClick(self, shift):
#        """
#        User dbl-clicked in the view
#        @param shift: Shift flag
#        @return: Boolean. True if you handled the event
#        """
#        print "OnDblClick, shift=%d" % shift
#        return True
#
#    def OnCursorPosChanged(self):
#        """
#        Cursor position changed.
#        @return: Nothing
#        """
#        print "OnCurposChanged"
#
#    def OnClose(self):
#        """
#        The view is closing. Use this event to cleanup.
#        @return: Nothing
#        """
#        print "OnClose"
#
#    def OnKeydown(self, vkey, shift):
#        """
#        User pressed a key
#        @param vkey: Virtual key code
#        @param shift: Shift flag
#        @return: Boolean. True if you handled the event
#        """
#        print "OnKeydown, vk=%d shift=%d" % (vkey, shift)
#        return False
#
#    def OnPopup(self):
#        """
#        Context menu popup is about to be shown. Create items dynamically if you wish
#        @return: Boolean. True if you handled the event
#        """
#        print "OnPopup"
#
#    def OnHint(self, lineno):
#        """
#        Hint requested for the given line number.
#        @param lineno: The line number (zero based)
#        @return:
#            - tuple(number of important lines, hint string)
#            - None: if no hint available
#        """
#        return (1, "OnHint, line=%d" % lineno)
#
#    def OnPopupMenu(self, menu_id):
#        """
#        A context (or popup) menu item was executed.
#        @param menu_id: ID previously registered with add_popup_menu()
#        @return: Boolean
#        """
#        print "OnPopupMenu, menu_id=" % menu_id
#        return True
#</pydoc>
#</pycode(py_custviewer)>

#<pycode(py_custviewerex1)>

class say_something_handler_t(idaapi.action_handler_t):
    def __init__(self, thing):
        idaapi.action_handler_t.__init__(self)
        self.thing = thing

    def activate(self, ctx):
        print self.thing

    def update(self, ctx):
        return idaapi.AST_ENABLE_ALWAYS


# -----------------------------------------------------------------------
class mycv_t(simplecustviewer_t):
    def Create(self, sn=None):
        # Form the title
        title = "Simple custom view test"
        if sn:
            title += " %d" % sn

        # Create the customviewer
        if not simplecustviewer_t.Create(self, title):
            return False

        for i in xrange(0, 100):
            self.AddLine("Line %d" % i)

#        self.Jump(0)

        return True

    def OnClick(self, shift):
        """
        User clicked in the view
        @param shift: Shift flag
        @return: Boolean. True if you handled the event
        """
        print "OnClick, shift=%d" % shift
        return True

    def OnDblClick(self, shift):
        """
        User dbl-clicked in the view
        @param shift: Shift flag
        @return: Boolean. True if you handled the event
        """
        word = self.GetCurrentWord()
        if not word: word = "<None>"
        print "OnDblClick, shift=%d, current word=%s" % (shift, word)
        return True

    def OnCursorPosChanged(self):
        """
        Cursor position changed.
        @return: Nothing
        """
        print "OnCurposChanged"

    def OnClose(self):
        """
        The view is closing. Use this event to cleanup.
        @return: Nothing
        """
        print "OnClose " + self.title

    def OnKeydown(self, vkey, shift):
        """
        User pressed a key
        @param vkey: Virtual key code
        @param shift: Shift flag
        @return: Boolean. True if you handled the event
        """
        print "OnKeydown, vk=%d shift=%d" % (vkey, shift)
        # ESCAPE?
        if vkey == 27:
            self.Close()
        # VK_DELETE
        elif vkey == 46:
            n = self.GetLineNo()
            if n is not None:
                self.DelLine(n)
                self.Refresh()
                print "Deleted line %d" % n
        # Goto?
        elif vkey == ord('G'):
            n = self.GetLineNo()
            if n is not None:
                v = idc.AskLong(self.GetLineNo(), "Where to go?")
                if v:
                    self.Jump(v, 0, 5)
        elif vkey == ord('R'):
            print "refreshing...."
            self.Refresh()
        elif vkey == ord('C'):
            print "refreshing current line..."
            self.RefreshCurrent()
        elif vkey == ord('A'):
            s = idc.AskStr("NewLine%d" % self.Count(), "Append new line")
            self.AddLine(s)
            self.Refresh()
        elif vkey == ord('X'):
            print "Clearing all lines"
            self.ClearLines()
            self.Refresh()
        elif vkey == ord('I'):
            n = self.GetLineNo()
            s = idc.AskStr("InsertedLine%d" % n, "Insert new line")
            self.InsertLine(n, s)
            self.Refresh()
        elif vkey == ord('E'):
            l = self.GetCurrentLine(notags=1)
            if not l:
                return False
            n = self.GetLineNo()
            print "curline=<%s>" % l
            l = l + idaapi.COLSTR("*", idaapi.SCOLOR_VOIDOP)
            self.EditLine(n, l)
            self.RefreshCurrent()
            print "Edited line %d" % n
        else:
            return False
        return True

    def OnHint(self, lineno):
        """
        Hint requested for the given line number.
        @param lineno: The line number (zero based)
        @return:
            - tuple(number of important lines, hint string)
            - None: if no hint available
        """
        return (1, "OnHint, line=%d" % lineno)

# -----------------------------------------------------------------------
try:
    # created already?
    mycv
    print "Already created, will close it..."
    mycv.Close()
    del mycv
except:
    pass

def show_win():
    x = mycv_t()
    if not x.Create():
        print "Failed to create!"
        return None
    x.Show()
    tcc = x.GetTCustomControl()

    # Register actions
    for thing in ["Hello", "World"]:
        actname = "custview:say_%s" % thing
        idaapi.register_action(
            idaapi.action_desc_t(actname, "Say %s" % thing, say_something_handler_t(thing)))
        idaapi.attach_action_to_popup(tcc, None, actname)
    return x

mycv = show_win()
if not mycv:
    del mycv

def make_many(n):
    L = []
    for i in xrange(1, n+1):
        v = mycv_t()
        if not v.Create(i):
            break
        v.Show()
        L.append(v)
    return L

#</pycode(py_custviewerex1)>