3ec666edbb
- removed the import of the whole FlatCAMApp file only for the usage of GracefulException - remove the import of FlatCAMApp and used alternate ways - optimized the imports in some files - moved the Bookmarksmanager and ToolDB classes into their own files - solved some bugs that were not so visible in the Editors and HPGL parser
124 lines
3.8 KiB
Python
124 lines
3.8 KiB
Python
# ##########################################################
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# FlatCAM: 2D Post-processing for Manufacturing #
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# http://flatcam.org #
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# Author: Juan Pablo Caram (c) #
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# Date: 2/5/2014 #
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# MIT Licence #
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# ##########################################################
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# ##########################################################
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# File Modified (major mod): Marius Adrian Stanciu #
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# Date: 11/4/2019 #
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# ##########################################################
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import gettext
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import FlatCAMTranslation as fcTranslate
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import builtins
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fcTranslate.apply_language('strings')
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if '_' not in builtins.__dict__:
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_ = gettext.gettext
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class GracefulException(Exception):
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# Graceful Exception raised when the user is requesting to cancel the current threaded task
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def __init__(self):
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super().__init__()
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def __str__(self):
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return '\n\n%s' % _("The user requested a graceful exit of the current task.")
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class LoudDict(dict):
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"""
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A Dictionary with a callback for
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item changes.
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"""
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def __init__(self, *args, **kwargs):
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dict.__init__(self, *args, **kwargs)
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self.callback = lambda x: None
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def __setitem__(self, key, value):
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"""
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Overridden __setitem__ method. Will emit 'changed(QString)'
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if the item was changed, with key as parameter.
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"""
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if key in self and self.__getitem__(key) == value:
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return
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dict.__setitem__(self, key, value)
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self.callback(key)
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def update(self, *args, **kwargs):
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if len(args) > 1:
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raise TypeError("update expected at most 1 arguments, got %d" % len(args))
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other = dict(*args, **kwargs)
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for key in other:
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self[key] = other[key]
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def set_change_callback(self, callback):
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"""
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Assigns a function as callback on item change. The callback
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will receive the key of the object that was changed.
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:param callback: Function to call on item change.
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:type callback: func
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:return: None
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"""
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self.callback = callback
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class FCSignal:
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"""
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Taken from here: https://blog.abstractfactory.io/dynamic-signals-in-pyqt/
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"""
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def __init__(self):
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self.__subscribers = []
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def emit(self, *args, **kwargs):
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for subs in self.__subscribers:
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subs(*args, **kwargs)
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def connect(self, func):
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self.__subscribers.append(func)
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def disconnect(self, func):
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try:
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self.__subscribers.remove(func)
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except ValueError:
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print('Warning: function %s not removed '
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'from signal %s' % (func, self))
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def color_variant(hex_color, bright_factor=1):
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"""
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Takes a color in HEX format #FF00FF and produces a lighter or darker variant
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:param hex_color: color to change
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:param bright_factor: factor to change the color brightness [0 ... 1]
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:return: modified color
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"""
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if len(hex_color) != 7:
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print("Color is %s, but needs to be in #FF00FF format. Returning original color." % hex_color)
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return hex_color
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if bright_factor > 1.0:
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bright_factor = 1.0
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if bright_factor < 0.0:
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bright_factor = 0.0
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rgb_hex = [hex_color[x:x + 2] for x in [1, 3, 5]]
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new_rgb = []
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for hex_value in rgb_hex:
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# adjust each color channel and turn it into a INT suitable as argument for hex()
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mod_color = round(int(hex_value, 16) * bright_factor)
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# make sure that each color channel has two digits without the 0x prefix
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mod_color_hex = str(hex(mod_color)[2:]).zfill(2)
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new_rgb.append(mod_color_hex)
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return "#" + "".join([i for i in new_rgb])
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