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# --------------------------------------------------------------------------- #

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# ENHANCEDSTATUSBAR wxPython IMPLEMENTATION

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# Python Code By:

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#

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# Andrea Gavana, @ 31 May 2005

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# Nitro, @ 21 September 2005

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# Latest Revision: 21 September 2005, 19.57.20 GMT+2

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# Latest Revision before Latest Revision: 21 September 2005, 18.29.35 GMT+2

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# Latest Revision before Latest Revision before Latest Revision: 31 May 2005, 23.17 CET

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#

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#

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# TODO List/Caveats

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#

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# 1. Some Requests/Features To Add?

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#

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#

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# For All Kind Of Problems, Requests Of Enhancements And Bug Reports, Please

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# Write To Me At:

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#

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#

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# andrea.gavana@agip.it

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# andrea_gavan@tin.it

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#

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# Or, Obviously, To The wxPython Mailing List!!!

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#

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#

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# licensed under wxWidgets License (GPL compatible)

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# End Of Comments

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# --------------------------------------------------------------------------- #

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""" Description:

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EnhancedStatusBar Is A Slight Modification (Actually A Subclassing) Of wx.StatusBar.

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It Allows You To Add Almost Any Widget You Like To The wx.StatusBar Of Your Main

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Frame Application And Also To Layout Them Properly.

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What It Can Do:

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1) Almost All The Functionalities Of wx.StatusBar Are Still Present;

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2) You Can Add Different Kind Of Widgets Into Every Field Of The EnhancedStatusBar;

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3) The AddWidget() Methods Accepts 2 Layout Inputs:

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   - horizontalalignment: This Specify The Horizontal Alignment For Your Widget,

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     And Can Be ESB_EXACT_FIT, ESB_ALIGN_CENTER_HORIZONTAL, ESB_ALIGN_LEFT And

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     ESB_ALIGN_RIGHT;

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   - varticalalignment: This Specify The Vertical Alignment For Your Widget,

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     And Can Be ESB_EXACT_FIT, ESB_ALIGN_CENTER_VERTICAL, ESB_ALIGN_BOTTOM And

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     ESB_ALIGN_LEFT;

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EnhancedStatusBar Is Freeware And Distributed Under The wxPython License.

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Latest Revision: 21 September 2005, 19.57.20 GMT+2

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Latest Revision before Latest Revision: 21 September 2005, 18.29.35 GMT+2

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Latest Revision before Latest Revision before Latest Revision: 31 May 2005, 23.17 CET

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"""

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from __future__ import absolute_import

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from __future__ import division

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import wx

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# Horizontal Alignment Constants

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ESB_ALIGN_CENTER_VERTICAL = 1

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ESB_ALIGN_TOP = 2

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ESB_ALIGN_BOTTOM = 3

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# Vertical Alignment Constants

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ESB_ALIGN_CENTER_HORIZONTAL = 11

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ESB_ALIGN_LEFT = 12

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ESB_ALIGN_RIGHT = 13

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# Exact Fit (Either Horizontal Or Vertical Or Both) Constant

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ESB_EXACT_FIT = 20

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# ---------------------------------------------------------------

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# Class EnhancedStatusBar

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# ---------------------------------------------------------------

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# This Is The Main Class Implementation. See The Demo For Details

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# ---------------------------------------------------------------

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class EnhancedStatusBarItem(object):

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    def __init__(self, widget, pos, horizontalalignment=ESB_ALIGN_CENTER_HORIZONTAL, verticalalignment=ESB_ALIGN_CENTER_VERTICAL):

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        self.__dict__.update(locals())

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class EnhancedStatusBar(wx.StatusBar):

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    def __init__(self, parent, id=wx.ID_ANY, style=wx.STB_SIZEGRIP,

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                 name="EnhancedStatusBar"):

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        """Default Class Constructor.

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        EnhancedStatusBar.__init__(self, parent, id=wx.ID_ANY,

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                                   style=wx.STB_SIZEGRIP,

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                                   name="EnhancedStatusBar")

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        """

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        wx.StatusBar.__init__(self, parent, id, style, name)

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        self._items = {}

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        self._curPos = 0

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        self._parent = parent

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        self.Bind(wx.EVT_SIZE, self.OnSize)

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        wx.CallAfter(self.OnSize, None)

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    def OnSize(self, event):

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        """Handles The wx.EVT_SIZE Events For The StatusBar.

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        Actually, All The Calculations Linked To HorizontalAlignment And

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        VerticalAlignment Are Done In This Function."""

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        for pos, item in self._items.items():

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            widget, horizontalalignment, verticalalignment = item.widget, item.horizontalalignment, item.verticalalignment

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            rect = self.GetFieldRect(pos)

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            widgetsize = widget.GetSize()

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            rect = self.GetFieldRect(pos)

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            if horizontalalignment == ESB_EXACT_FIT:

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                if verticalalignment == ESB_EXACT_FIT:

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                    # 1 September 2015 Fix fit align

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                    widget.SetSize((rect.width-4, rect.height-4))

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                    widget.SetPosition((rect.x+2, rect.y+2))

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                elif verticalalignment == ESB_ALIGN_CENTER_VERTICAL:

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                    if widgetsize[1] < rect.width - 1:

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                        diffs = (rect.height - widgetsize[1])/2

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                        widget.SetSize((rect.width-2, widgetsize[1]))

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                        widget.SetPosition((rect.x-1, rect.y+diffs))

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                    else:

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                        widget.SetSize((rect.width-2, widgetsize[1]))

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                        widget.SetPosition((rect.x-1, rect.y-1))

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                elif verticalalignment == ESB_ALIGN_TOP:

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                    widget.SetSize((rect.width-2, widgetsize[1]))

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                    widget.SetPosition((rect.x-1, rect.y))

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                elif verticalalignment == ESB_ALIGN_BOTTOM:

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                    widget.SetSize((rect.width-2, widgetsize[1]))

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                    widget.SetPosition((rect.x-1, rect.height-widgetsize[1]))

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            elif horizontalalignment == ESB_ALIGN_LEFT:

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                xpos = rect.x - 1

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                if verticalalignment == ESB_EXACT_FIT:

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                    widget.SetSize((widgetsize[0], rect.height-2))

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                    widget.SetPosition((xpos, rect.y-1))

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                elif verticalalignment == ESB_ALIGN_CENTER_VERTICAL:

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                    if widgetsize[1] < rect.height - 1:

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                        diffs = (rect.height - widgetsize[1]) // 2

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                        widget.SetPosition((xpos, rect.y+diffs))

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                    else:

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                        widget.SetSize((widgetsize[0], rect.height-2))

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                        widget.SetPosition((xpos, rect.y-1))

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                elif verticalalignment == ESB_ALIGN_TOP:

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                    widget.SetPosition((xpos, rect.y))

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                elif verticalalignment == ESB_ALIGN_BOTTOM:

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                    widget.SetPosition((xpos, rect.height-widgetsize[1]))

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            elif horizontalalignment == ESB_ALIGN_RIGHT:

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                xpos = rect.x + rect.width - widgetsize[0] - 1

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                if verticalalignment == ESB_EXACT_FIT:

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                    widget.SetSize((widgetsize[0], rect.height-2))

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                    widget.SetPosition((xpos, rect.y-1))

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                elif verticalalignment == ESB_ALIGN_CENTER_VERTICAL:

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                    if widgetsize[1] < rect.height - 1:

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                        diffs = (rect.height - widgetsize[1]) // 2

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                        widget.SetPosition((xpos, rect.y+diffs))

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                    else:

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                        widget.SetSize((widgetsize[0], rect.height-2))

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                        widget.SetPosition((xpos, rect.y-1))

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                elif verticalalignment == ESB_ALIGN_TOP:

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                    widget.SetPosition((xpos, rect.y))

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                elif verticalalignment == ESB_ALIGN_BOTTOM:

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                    widget.SetPosition((xpos, rect.height-widgetsize[1]))

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            elif horizontalalignment == ESB_ALIGN_CENTER_HORIZONTAL:

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                xpos = rect.x + (rect.width - widgetsize[0]) // 2 - 1

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                if verticalalignment == ESB_EXACT_FIT:

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                    widget.SetSize((widgetsize[0], rect.height))

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                    widget.SetPosition((xpos, rect.y))

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                elif verticalalignment == ESB_ALIGN_CENTER_VERTICAL:

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                    if widgetsize[1] < rect.height - 1:

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                        diffs = (rect.height - widgetsize[1]) // 2

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                        widget.SetPosition((xpos, rect.y+diffs))

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                    else:

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                        widget.SetSize((widgetsize[0], rect.height-1))

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                        widget.SetPosition((xpos, rect.y+1))

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                elif verticalalignment == ESB_ALIGN_TOP:

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                    widget.SetPosition((xpos, rect.y))

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                elif verticalalignment == ESB_ALIGN_BOTTOM:

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                    widget.SetPosition((xpos, rect.height-widgetsize[1]))

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        if event is not None:

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            event.Skip()

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    def AddWidget(self, widget, horizontalalignment=ESB_ALIGN_CENTER_HORIZONTAL,

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                  verticalalignment=ESB_ALIGN_CENTER_VERTICAL, pos=-1):

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        """Add A Widget To The EnhancedStatusBar.

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        Parameters:

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        - horizontalalignment: This Can Be One Of:

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          a) ESB_EXACT_FIT: The Widget Will Fit Horizontally The StatusBar Field Width;

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          b) ESB_ALIGN_CENTER_HORIZONTAL: The Widget Will Be Centered Horizontally In

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             The StatusBar Field;

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          c) ESB_ALIGN_LEFT: The Widget Will Be Left Aligned In The StatusBar Field;

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          d) ESB_ALIGN_RIGHT: The Widget Will Be Right Aligned In The StatusBar Field;

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        - verticalalignment:

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          a) ESB_EXACT_FIT: The Widget Will Fit Vertically The StatusBar Field Height;

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          b) ESB_ALIGN_CENTER_VERTICAL: The Widget Will Be Centered Vertically In

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             The StatusBar Field;

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          c) ESB_ALIGN_BOTTOM: The Widget Will Be Bottom Aligned In The StatusBar Field;

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          d) ESB_ALIGN_TOP: The Widget Will Be TOP Aligned In The StatusBar Field;

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        """

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        if pos == -1:

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            pos = self._curPos

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            self._curPos += 1

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        if self.GetFieldsCount() <= pos:

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            raise ValueError("\nERROR: EnhancedStatusBar has a max of %d items, you tried to set item #%d" %

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                             (self.GetFieldsCount(), pos))

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        if horizontalalignment not in [ESB_ALIGN_CENTER_HORIZONTAL, ESB_EXACT_FIT,

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                                       ESB_ALIGN_LEFT, ESB_ALIGN_RIGHT]:

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            raise ValueError('\nERROR: Parameter "horizontalalignment" Should Be One Of '

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                             '"ESB_ALIGN_CENTER_HORIZONTAL", "ESB_ALIGN_LEFT", "ESB_ALIGN_RIGHT"'

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                             '"ESB_EXACT_FIT"')

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        if verticalalignment not in [ESB_ALIGN_CENTER_VERTICAL, ESB_EXACT_FIT,

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                                     ESB_ALIGN_TOP, ESB_ALIGN_BOTTOM]:

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            raise ValueError('\nERROR: Parameter "verticalalignment" Should Be One Of '

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                             '"ESB_ALIGN_CENTER_VERTICAL", "ESB_ALIGN_TOP", "ESB_ALIGN_BOTTOM"'

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                             '"ESB_EXACT_FIT"')

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        try:

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            self.RemoveChild(self._items[pos].widget)

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            self._items[pos].widget.Destroy()

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        except KeyError:

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            pass

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        self._items[pos] = EnhancedStatusBarItem(widget, pos, horizontalalignment, verticalalignment)

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        wx.CallAfter(self.OnSize, None)