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‎source_py3/python_toolbox/wx_tools/__init__.py‎

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# Copyright 2009-2015 Ram Rachum.
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# This program is distributed under the MIT license.
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'''Defines various tools for wxPython.'''
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import wx
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is_mac = (wx.Platform == '__WXMAC__')
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is_gtk = (wx.Platform == '__WXGTK__')
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is_win = (wx.Platform == '__WXMSW__')
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from . import colors
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from . import keyboard
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from . import window_tools
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from . import bitmap_tools
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from . import cursors
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from . import event_tools
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from . import generic_bitmaps
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from . import drawing_tools
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from . import timing

‎source_py3/python_toolbox/wx_tools/bitmap_tools.py‎

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# Copyright 2009-2015 Ram Rachum.
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# This program is distributed under the MIT license.
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'''Defines bitmap-related tools.'''
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import pkg_resources
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import wx
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def color_replaced_bitmap(bitmap, old_rgb, new_rgb):
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'''Replace all appearances of `old_rgb` with `new_rgb` in `bitmap`.'''
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old_r, old_g, old_b = old_rgb
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new_r, new_g, new_b = new_rgb
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image = wx.ImageFromBitmap(bitmap)
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assert isinstance(image, wx.Image)
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image.Replace(old_r, old_g, old_b, new_r, new_g, new_b)
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return wx.BitmapFromImage(image)
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def bitmap_from_pkg_resources(package_or_requirement, resource_name):
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'''
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Get a bitmap from a file using `pkg_resources`.
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Example:
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my_bitmap = bitmap_from_pkg_resources('whatever.images', 'image.jpg')
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'''
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return wx.BitmapFromImage(
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wx.ImageFromStream(
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pkg_resources.resource_stream(package_or_requirement,
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resource_name),
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wx.BITMAP_TYPE_ANY
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)
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)

‎source_py3/python_toolbox/wx_tools/colors.py‎

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# Copyright 2009-2015 Ram Rachum.
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# This program is distributed under the MIT license.
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'''
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Defines color-related tools.
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This includes functions for getting general colors (e.g. background color) and
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functions to convert between different respresentations of colors.
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'''
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from __future__ import division
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import colorsys
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import warnings
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import wx
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from python_toolbox import caching
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from python_toolbox import color_tools
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is_mac = (wx.Platform == '__WXMAC__')
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is_gtk = (wx.Platform == '__WXGTK__')
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is_win = (wx.Platform == '__WXMSW__')
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@caching.cache()
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def get_foreground_color():
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'''Get the default foreground color.'''
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return wx.SystemSettings.GetColour(wx.SYS_COLOUR_MENUTEXT)
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@caching.cache()
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def get_background_color():
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'''Get the default background color'''
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if is_win:
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# return wx.Colour(212, 208, 200)
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return wx.SystemSettings.GetColour(wx.SYS_COLOUR_MENUBAR)
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elif is_mac:
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return wx.Colour(232, 232, 232)
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elif is_gtk:
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# Until `SYS_COLOUR_*` get their act togother, we're using Windows
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# colors for Linux.
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return wx.Colour(212, 208, 200)
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else:
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warnings.warn("Unidentified platform! It's neither '__WXGTK__', "
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"'__WXMAC__' nor '__WXMSW__'. Things might not work "
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"properly.")
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return wx.Colour(212, 208, 200)
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@caching.cache()
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def get_background_brush():
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'''Get the default background brush.'''
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return wx.Brush(get_background_color())
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### Color conversions: ########################################################
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# #
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def wx_color_to_html_color(wx_color):
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'''Convert a wxPython color to an HTML color string.'''
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rgb = wx_color.GetRGB()
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(green_blue, red) = divmod(rgb, 256)
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(blue, green) = divmod(green_blue, 256)
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return '#%02x%02x%02x' % (red, green, blue)
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def hls_to_wx_color(hls, alpha=255):
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'''Convert an HLS color to a wxPython color.'''
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return rgb_to_wx_color(colorsys.hls_to_rgb(*hls), alpha=alpha)
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def wx_color_to_hls(wx_color):
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'''Convert a wxPython color to an HLS color.'''
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return colorsys.rgb_to_hls(wx_color.red, wx_color.blue, wx_color.green)
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def rgb_to_wx_color(rgb, alpha=255):
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'''Convert an RGB color to a wxPython color.'''
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r, g, b = rgb
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return wx.Colour(r * 255, g * 255, b * 255, alpha)
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def wx_color_to_rgb(wx_color):
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'''Convert a wxPython color to an RGB color.'''
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return (
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wx_color.red / 255,
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wx_color.green / 255,
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wx_color.blue / 255
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)
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def wx_color_to_big_rgb(wx_color):
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'''Convert a wxPython color to a big (i.e. `int`) RGB color.'''
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return (
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wx_color.red,
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wx_color.green,
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wx_color.blue
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)
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# #
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### Finished color conversions. ###############################################
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### Color inversion: ##########################################################
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# #
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def invert_rgb(rgb):
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red, green, blue = rgb
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return (
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1 - red,
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1 - green,
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1 - blue
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)
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def invert_hls(hls):
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rgb = colorsys.hls_to_rgb(hls)
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inverted_rgb = inverted_rgb(rgb)
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return colorsys.rgb_to_hls(inverted_rgb)
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def invert_wx_color(wx_color):
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rgb = wx_color_to_rgb(wx_color)
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inverted_rgb = invert_rgb(rgb)
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return rgb_to_wx_color(inverted_rgb)
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# #
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### Finished color inversion. #################################################
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def mix_wx_color(ratio, color1, color2):
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'''Mix two wxPython colors according to the given `ratio`.'''
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rgb = color_tools.mix_rgb(
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ratio,
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wx_color_to_rgb(color1),
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wx_color_to_rgb(color2)
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)
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return rgb_to_wx_color(rgb)

‎source_py3/python_toolbox/wx_tools/cursors/__init__.py‎

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# Copyright 2009-2015 Ram Rachum.
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# This program is distributed under the MIT license.
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'''Defines various cursor-related tools.'''
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from . import collection
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from .cursor_changer import CursorChanger

‎source_py3/python_toolbox/wx_tools/cursors/collection/__init__.py‎

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# Copyright 2009-2015 Ram Rachum.
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# This program is distributed under the MIT license.
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'''A collection of cursors.'''
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from .collection import get_open_grab, get_closed_grab

‎source_py3/python_toolbox/wx_tools/cursors/collection/collection.py‎

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# Copyright 2009-2015 Ram Rachum.
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# This program is distributed under the MIT license.
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'''A collection of cursors.'''
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import pkg_resources
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import wx
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from python_toolbox import caching
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from . import images as __images_package
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images_package = __images_package.__name__
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@caching.cache()
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def get_open_grab():
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'''Get the "open grab" cursor.'''
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file_name = 'open_grab.png'
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hotspot = (8, 8)
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stream = pkg_resources.resource_stream(images_package,
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file_name)
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image = wx.ImageFromStream(stream, wx.BITMAP_TYPE_ANY)
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if hotspot is not None:
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image.SetOptionInt(wx.IMAGE_OPTION_CUR_HOTSPOT_X, hotspot[0])
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image.SetOptionInt(wx.IMAGE_OPTION_CUR_HOTSPOT_Y, hotspot[1])
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cursor = wx.CursorFromImage(image)
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return cursor
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@caching.cache()
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def get_closed_grab():
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'''Get the "closed grab" cursor.'''
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file_name = 'closed_grab.png'
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hotspot = (8, 8)
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stream = pkg_resources.resource_stream(images_package,
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file_name)
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image = wx.ImageFromStream(stream, wx.BITMAP_TYPE_ANY)
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if hotspot is not None:
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image.SetOptionInt(wx.IMAGE_OPTION_CUR_HOTSPOT_X, hotspot[0])
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image.SetOptionInt(wx.IMAGE_OPTION_CUR_HOTSPOT_Y, hotspot[1])
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cursor = wx.CursorFromImage(image)
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return cursor

‎source_py3/python_toolbox/wx_tools/cursors/collection/images/__init__.py‎

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# Copyright 2009-2015 Ram Rachum.
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# This program is distributed under the MIT license.
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'''Images package.'''

‎source_py3/python_toolbox/wx_tools/cursors/collection/images/closed_grab.png‎

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‎source_py3/python_toolbox/wx_tools/cursors/collection/images/open_grab.png‎

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‎source_py3/python_toolbox/wx_tools/cursors/cursor_changer.py‎

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# Copyright 2009-2015 Ram Rachum.
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# This program is distributed under the MIT license.
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import wx
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from python_toolbox.temp_value_setting import TempValueSetter
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class CursorChanger(TempValueSetter):
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'''Context manager for showing specified cursor while suite executes.'''
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def __init__(self, window, cursor):
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'''
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Construct the `CursorChanger`.
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`cursor` may be either a `wx.Cursor` object or a constant like
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`wx.CURSOR_BULLSEYE`.
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'''
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assert isinstance(window, wx.Window)
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self.window = window
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self.cursor = cursor if isinstance(cursor, wx.Cursor) \
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else wx.StockCursor(cursor)
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TempValueSetter.__init__(self,
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(window.GetCursor, window.SetCursor),
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self.cursor,
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assert_no_fiddling=False)

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