General class to handle tables of color schemes. It's basically a dict of color schemes with a couple of shorthand attributes and some convenient methods. active_scheme_name -> obvious active_colors -> actual color table of the active scheme
| 124 | return ColorScheme(name, self.colors.dict()) |
| 125 | |
| 126 | class ColorSchemeTable(dict): |
| 127 | """General class to handle tables of color schemes. |
| 128 | |
| 129 | It's basically a dict of color schemes with a couple of shorthand |
| 130 | attributes and some convenient methods. |
| 131 | |
| 132 | active_scheme_name -> obvious |
| 133 | active_colors -> actual color table of the active scheme""" |
| 134 | |
| 135 | def __init__(self, scheme_list=None, default_scheme=''): |
| 136 | """Create a table of color schemes. |
| 137 | |
| 138 | The table can be created empty and manually filled or it can be |
| 139 | created with a list of valid color schemes AND the specification for |
| 140 | the default active scheme. |
| 141 | """ |
| 142 | |
| 143 | # create object attributes to be set later |
| 144 | self.active_scheme_name = '' |
| 145 | self.active_colors = None |
| 146 | |
| 147 | if scheme_list: |
| 148 | if default_scheme == '': |
| 149 | raise ValueError('you must specify the default color scheme') |
| 150 | for scheme in scheme_list: |
| 151 | self.add_scheme(scheme) |
| 152 | self.set_active_scheme(default_scheme) |
| 153 | |
| 154 | def copy(self): |
| 155 | """Return full copy of object""" |
| 156 | return ColorSchemeTable(self.values(),self.active_scheme_name) |
| 157 | |
| 158 | def add_scheme(self,new_scheme): |
| 159 | """Add a new color scheme to the table.""" |
| 160 | if not isinstance(new_scheme,ColorScheme): |
| 161 | raise ValueError('ColorSchemeTable only accepts ColorScheme instances') |
| 162 | self[new_scheme.name] = new_scheme |
| 163 | |
| 164 | def set_active_scheme(self,scheme,case_sensitive=0): |
| 165 | """Set the currently active scheme. |
| 166 | |
| 167 | Names are by default compared in a case-insensitive way, but this can |
| 168 | be changed by setting the parameter case_sensitive to true.""" |
| 169 | |
| 170 | scheme_names = list(self.keys()) |
| 171 | if case_sensitive: |
| 172 | valid_schemes = scheme_names |
| 173 | scheme_test = scheme |
| 174 | else: |
| 175 | valid_schemes = [s.lower() for s in scheme_names] |
| 176 | scheme_test = scheme.lower() |
| 177 | try: |
| 178 | scheme_idx = valid_schemes.index(scheme_test) |
| 179 | except ValueError: |
| 180 | raise ValueError('Unrecognized color scheme: ' + scheme + \ |
| 181 | '\nValid schemes: '+str(scheme_names).replace("'', ",'')) |
| 182 | else: |
| 183 | active = scheme_names[scheme_idx] |
no outgoing calls
no test coverage detected