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https://github.com/thewesker/lazy-dsi-file-downloader.git
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402 lines
16 KiB
Python
402 lines
16 KiB
Python
# Copyright 2020 Saad Mairaj
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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'''
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Newer style colorchoosers for tkinter module.
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Version: 0.1.4
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'''
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__version__ = "0.1.4"
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import re
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import sys
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if sys.version_info.major == 2: # For python 2.x
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import Tkinter as _tk
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from tkFont import Font
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import tkFont as font
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elif sys.version_info.major == 3: # For python 3.x
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import tkinter as _tk
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from tkinter import font
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from tkinter.font import Font
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import colour
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import tkmacosx.basewidget as tkb
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HEX = 'hex'
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RGB = 'rgb'
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def gradient(iteration):
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"""This function returns a list of HSL values
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of all the colors in an order."""
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ops = {'+': lambda c, step: min(1.0, c + step),
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'-': lambda c, step: max(0.0, c - step)}
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index = 0
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operation = '+'
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iteration = max(0, iteration-2)
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rgb, _list = [1.0, 0.0, 0.0], []
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combo = ((2, 1, 0), (2, 0, 1), (0, 2, 1), (0, 1, 2), (1, 0, 2), (1, 2, 0))
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step = float(len(combo)) / float(iteration)
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_list.append('#%02x%02x%02x' % (round(rgb[0]*255),
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round(rgb[1]*255), round(rgb[2]*255)))
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for i in range(iteration):
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if (rgb[combo[index][1]] == 1.0 and operation == '+') or \
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(rgb[combo[index][1]] == 0.0 and operation == '-'):
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operation = '-' if operation == '+' else '+'
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index += 1
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rgb[combo[index][1]] = ops[operation](rgb[combo[index][1]], step)
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_list.append('#%02x%02x%02x' % (round(rgb[0]*255),
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round(rgb[1]*255), round(rgb[2]*255)))
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_list.append('#%02x%02x%02x' % (round(1.0*255),
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round(0.0*255), round(0.0*255)))
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return _list
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class Colorscale(tkb._Canvas):
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"""
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## Color Scale.
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This is ColorScale alternate to tkinter's colorchooser.
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### Args:
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- `value`: Get either 'RGB' or 'HEX'.
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- `command`: callback function with an argument.
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- `orient`: Set the orientation.
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- `mousewheel`: Set mousewheel to scroll marker.
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- `variable`: Give tkinter variable (`StringVar`).
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- `showinfo`: Shows hex or rbg while selecting color.
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- `gradient`: Take tuple of two colors or default.
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- `showinfodelay`: Delay before the showinfo disappears (in ms).
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"""
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_features = ('value', 'command', 'orient', 'mousewheel', 'variable', 'showinfo',
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'showinfodelay', 'gradient',) # add more features
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def __init__(self, master=None, cnf={}, **kw):
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kw = {k: v for k, v in _tk._cnfmerge(
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(cnf, kw)).items() if v is not None}
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self.cnf = {k: kw.pop(k, None)
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for k in kw.copy() if k in self._features}
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self.cnf['value'] = self.cnf.get('value', 'hex')
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self.cnf['orient'] = self.cnf.get('orient', 'vertical')
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self.cnf['gradient'] = self.cnf.get('gradient', 'default')
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self.cnf['showinfo'] = self.cnf.get('showinfo', True)
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self.cnf['showinfodelay'] = self.cnf.get('showinfodelay', 1500)
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kw['width'] = kw.get(
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"width", 250 if 'ver' in self.cnf['orient'] else 30)
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kw['height'] = kw.get(
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"height", 30 if 'ver' in self.cnf['orient'] else 250)
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kw['highlightthickness'] = kw.get('highlightthickness', 0)
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tkb._Canvas.__init__(self, master=master, cnf={}, **kw)
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# Protected members of the class
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self._size = (0, 0)
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self._marker_color = 'black'
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self._xy = int((self.winfo_reqwidth() if 'ver' in \
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self['orient'] else self.winfo_reqheight()) / 3)
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binds = [{'className': 'set_size', 'sequence': '<Configure>', 'func': self._set_size},
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{'className': 'b1_on_motion', 'sequence': '<B1-Motion>',
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'func': self._move_marker},
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{'className': 'b1_press', 'sequence': '<Button-1>', 'func': self._move_marker}]
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tkb._bind(self, *binds)
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self._set_mousewheel()
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def _set_size(self, evt=None):
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"""Internal function."""
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if evt.width == self._size[0] and evt.height == self._size[1]:
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return
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self._size = (evt.width, evt.height)
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self._create_items('create', safe_create=True)
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def _callback(self, color):
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"""Internal function."""
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if self.cnf.get('command'):
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self.cnf['command'](color)
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if self.cnf.get('variable'):
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self.cnf['variable'].set(color)
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def _create_items(self, cmd, safe_create=False, **kw):
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"""Internal function.\n
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Checks and creates (text, marker,
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showinfo, gradient lines) items."""
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def check_tag(tag):
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"""Internal function.\n
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If `cmd="check"` and the tag does not exist then
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the tag is created, but if `cmd="create"` and
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safe_create=True this will delete the tag if exists
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and creates a new tag with same settings."""
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if cmd == 'check':
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c = False
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elif cmd == 'create':
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c = True
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else:
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raise ValueError(
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'%s is not a valid command! Takes -create, -check' % cmd)
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cond1 = bool(not self.find('withtag', tag) or c)
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cond2 = bool(tag not in kw.get('avoid', []))
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if safe_create and cond1 and cond2:
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self.delete(tag)
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return cond1 and cond2
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ids = []
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if check_tag('gradient'):
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w, h = self.winfo_width(), self.winfo_height()
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iteration = w if 'ver' in self.cnf['orient'] else h
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# iteration -=
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if self.cnf.get('gradient', 'default') == 'default':
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color_list = gradient(iteration)
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elif isinstance(self.cnf.get('gradient'), (list, tuple)):
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c1 = colour.Color(self.cnf.get('gradient')[0])
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c2 = colour.Color(self.cnf.get('gradient')[1])
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color_list = c1.range_to(c2, iteration)
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elif isinstance(self.cnf.get('gradient'), str):
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c = colour.Color(self.cnf.get('gradient'))
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color_list = c.range_to(c, iteration)
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for count, c in enumerate(color_list):
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if self.cnf['orient'] == 'vertical':
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ags = (count, -1, count, h)
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elif self.cnf['orient'] == 'horizontal':
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ags = (-1, count, w, count)
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ids.append(self._create('line', ags, {
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'fill': c, 'tag': 'gradient'}))
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if check_tag('borderline'):
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w, h = self.winfo_width(), self.winfo_height()
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borderline_points = kw.get('borderline_points',
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(1, 1, self.winfo_width()-2,
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self.winfo_height()-2, 0))
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ids.append(self.rounded_rect(borderline_points, width=2,
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outline='#81b3f4', tag='borderline',
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style='arc'))
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if check_tag('marker'):
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marker_points = kw.get('marker_points', (
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self._xy if 'ver' in self.cnf['orient'] else 2,
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2 if 'ver' in self.cnf['orient'] else self._xy,
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5 if 'ver' in self.cnf['orient'] else self.winfo_width() - 4,
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self.winfo_height() - 4 if 'ver' in self.cnf['orient'] else 5,
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2))
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ids.append(self.rounded_rect(marker_points, width=2,
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outline=self._marker_color,
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tag="marker", style='arc'))
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if check_tag('markerbg'):
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markerbg_points = kw.get('markerbg_points')
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cnf = kw.get('markerbg_cnf')
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if not markerbg_points:
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return None
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ids.append(self._rounded(markerbg_points, **cnf))
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if check_tag('info'):
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info_points = kw.get('info_points')
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cnf = kw.get('info_cnf')
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if not info_points:
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return None
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ids.append(self._create('text', info_points, cnf))
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return ids
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def _release(self, evt=None):
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"""Internal function."""
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self.delete('info', 'markerbg')
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def _move_marker(self, evt, mw=None):
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"""Internal function."""
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if mw:
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evt.x = mw if 'ver' in self.cnf['orient'] else 10
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evt.y = 10 if 'ver' in self.cnf['orient'] else mw
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self.after_cancel(getattr(self, '_remove_id', ' '))
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self._remove_id = self.after(self.cnf['showinfodelay'], self._release)
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cond_x = bool(evt.x > 0 and evt.x < self.winfo_width())
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cond_y = bool(evt.y > 0 and evt.y < self.winfo_height())
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cond_state = bool(self['state'] not in 'disabled')
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if not (cond_x and cond_y and cond_state):
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return
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if not mw:
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self._xy = evt.x if 'ver' in self.cnf['orient'] else evt.y
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c_id = self.find('overlapping', evt.x, evt.y, evt.x, evt.y)
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hexcode = self.itemcget(c_id[0], 'fill')
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rgb = [int(i/65535.0*255.0) for i in self.winfo_rgb(hexcode)]
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self._marker_color = 'black' if (
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rgb[0]*0.299 + rgb[1]*0.587 + rgb[2]*0.114) > 110 else 'white'
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self._configure(('itemconfigure', 'borderline'),
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{'outline': hexcode}, None)
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if self.cnf['value'] == "rgb":
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spacer, spacbg = 65, 55
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text = ' | '.join([v+':'+str(f)
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for f, v in zip(rgb, ('R', 'G', 'B'))])
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self._callback(rgb)
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elif self.cnf['value'] == "hex":
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spacer, spacbg = 35, 25
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text = hexcode
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self._callback(hexcode)
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ver_cond = evt.x < self.winfo_width() - (spacbg+spacer)\
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and self['orient'] == 'vertical'
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hor_cond = evt.y < self.winfo_height() - (spacbg+spacer)\
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and self['orient'] == 'horizontal'
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markerbg_points = info_points = ()
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if bool(ver_cond or hor_cond) and self['showinfo']:
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markerbg_points = (
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evt.x+spacer - spacbg if 'ver' in self.cnf['orient'] else self.winfo_width()/2-6,
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self.winfo_height()/2-6 if 'ver' in self.cnf['orient'] else evt.y+spacer-spacbg,
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evt.x+spacer + spacbg if 'ver' in self.cnf['orient'] else self.winfo_width()/2+7,
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self.winfo_height()/2+7 if 'ver' in self.cnf['orient'] else evt.y+spacer+spacbg,
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6)
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info_points = (
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(evt.x+spacer if 'ver' in self.cnf['orient'] else self.winfo_width()/2,
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self.winfo_height()/2 if 'ver' in self.cnf['orient'] else evt.y+spacer))
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elif self['showinfo']:
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markerbg_points = (
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evt.x-spacer - spacbg if 'ver' in self.cnf['orient'] else self.winfo_width()/2-6,
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self.winfo_height()/2-6 if 'ver' in self.cnf['orient'] else evt.y-spacer-spacbg,
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evt.x-spacer +spacbg if 'ver' in self.cnf['orient'] else self.winfo_width()/2+7,
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self.winfo_height()/2+7 if 'ver' in self.cnf['orient'] else evt.y-spacer+spacbg,
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6)
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info_points = (
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(evt.x-spacer if 'ver' in self.cnf['orient'] else self.winfo_width()/2,
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self.winfo_height()/2 if 'ver' in self.cnf['orient'] else evt.y-spacer))
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markerbg_cnf = {'fill': self._marker_color, 'tag': 'markerbg'}
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info_cnf = {'angle': 0 if 'ver' in self.cnf['orient'] else 90,
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'text': text, 'font': Font(size=10), 'tag': "info", 'fill': hexcode}
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self._create_items('create', safe_create=True, avoid=('gradient', 'borderline'),
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info_points=info_points, markerbg_points=markerbg_points,
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info_cnf=info_cnf, markerbg_cnf=markerbg_cnf)
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return True
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def _set_mousewheel(self, evt=None):
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"""Internal function.\n
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Sets mousewheel scrolling."""
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def on_mousewheel(evt=None):
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"Internal function."
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ver_cond = self._xy < self.winfo_width() \
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and self['orient'] == 'vertical'
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hor_cond = self._xy < self.winfo_height() \
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and self['orient'] == 'horizontal'
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if tkb.delta(evt) <= -1 and (ver_cond or hor_cond):
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self._xy += 1
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if not self._move_marker(evt, mw=self._xy):
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self._xy -= 1
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if tkb.delta(evt) >= 1 and self._xy > 1:
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self._xy -= 1
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if not self._move_marker(evt, mw=self._xy):
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self._xy += 1
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if self.cnf.get('mousewheel'):
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tkb._bind(self, className='mousewheel',
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sequence='<MouseWheel>', func=on_mousewheel)
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tkb._bind(self, className='mousewheel_x11',
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sequence='<Button-4>', func=on_mousewheel)
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tkb._bind(self, className='mousewheel_x11',
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sequence='<Button-5>', func=on_mousewheel)
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else:
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tkb._bind(self, className='mousewheel',
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sequence='<MouseWheel>')
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tkb._bind(self, className='mousewheel_x11',
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sequence='<Button-4>')
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tkb._bind(self, className='mousewheel_x11',
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sequence='<Button-5>')
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def _configure(self, cmd, cnf=None, kw=None):
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"""Internal function."""
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kw1 = _tk._cnfmerge((cnf, kw))
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self.cnf.update(
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{k: kw.pop(k, None) for k in kw1.copy() if k in self._features})
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self.cnf = {k: v for k, v in self.cnf.copy().items() if v is not None}
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_return = tkb._Canvas._configure(self, cmd, None, kw1)
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if _tk._cnfmerge((cnf, kw)).get('gradient'):
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self._create_items('create', safe_create=True,
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avoid=('borderline', 'marker',
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'markerbg', 'info'))
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self._set_mousewheel()
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if _return and isinstance(_return, dict):
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_return.update(self.cnf)
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return _return
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def cget(self, key):
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"""Return the resource value for a KEY given as string."""
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if key in self.cnf.keys():
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return self.cnf.get(key)
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return tkb._Canvas.cget(self, key)
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__getitem__ = cget
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def keys(self):
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"""Return a list of all resource names of this widget."""
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return list(sorted(self.config() + self._features))
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def destroy(self):
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"""Destroy this widget."""
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self.after_cancel(getattr(self, '_remove_id', ' '))
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return tkb._Canvas.destroy(self)
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# ------------------------------------ #
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# Testing and demo #
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# ------------------------------------ #
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def demo_colorscale():
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from tkmacosx.variables import ColorVar
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root = _tk.Tk()
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root.title("Tkinter Color Bar")
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var = ColorVar()
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_tk.Label(root, text="I am a Label, Hello! :-)",
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bg=var).pack(padx=10, pady=10)
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Colorscale(root, value='hex', variable=var, mousewheel=1,
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gradient=('pink', 'purple')).pack(padx=10, pady=10)
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Colorscale(root, value='hex', variable=var, mousewheel=1,
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gradient=('green', 'yellow')).pack(padx=10, pady=10)
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Colorscale(root, value='hex', variable=var, mousewheel=1,
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gradient=('purple', 'cyan')).pack(padx=10, pady=10)
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Colorscale(root, value='hex', variable=var, mousewheel=1,
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gradient=('white', '#89ABE3')).pack(padx=10, pady=10)
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Colorscale(root, value='hex', variable=var, mousewheel=1,
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gradient=('#5F4B8B', '#E69A8D'), orient='horizontal'
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).pack(padx=10, pady=10, side='left')
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Colorscale(root, value='hex', variable=var, mousewheel=1,
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gradient=('#990011', '#FCF6F5'), orient='horizontal'
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).pack(padx=60, pady=10, side='left')
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Colorscale(root, value='hex', variable=var, mousewheel=1,
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orient='horizontal').pack(padx=10, pady=10, side='left')
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root.mainloop()
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if __name__ == "__main__":
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demo_colorscale()
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