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| Original file line number | Diff line number | Diff line change |
|---|---|---|
| @@ -1 +1 @@ | ||
| 0.6.1 | ||
| 0.6.2 |
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161
sane_yt_subfeed/gui/views/config_view/config_items/font_picker_button.py
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| from PyQt5.QtGui import QFont | ||
| from PyQt5.QtWidgets import QPushButton, QFontDialog | ||
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| from sane_yt_subfeed import create_logger | ||
| from sane_yt_subfeed.handlers.config_handler import read_config, set_config | ||
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| FONT_WEIGHT_MAP = {'0': 'Thin', '12': 'ExtraLight', '18': 'Thi', '25': 'Light', '50': 'Regular', '54': 'Medium', | ||
| '62': 'ExtraCondensed', '63': 'DemiBold', '75': 'Bold', '81': 'ExtraBold', '87': 'Black'} | ||
| HUMAN_READABLE_KEYS = {'underline': 'Underline', 'strikeout': 'Strike out', 'fixed_pitch': 'Fixed pitch', | ||
| 'raw_mode': 'RAW mode'} | ||
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| class FontPickerButton(QPushButton): | ||
| def __init__(self, parent, cfg_section, cfg_option, tooltip=None, actions=None, actions_kwargs=None): | ||
| """ | ||
| A custom QPushButton that launches a QFontDialog. | ||
| :param parent: Parent ptr. | ||
| :param cfg_section: Config section. | ||
| :param cfg_option: Config Option. | ||
| :param tooltip: String to show on tooltip. | ||
| :param actions: Function to call when font is selected. | ||
| :param actions_kwargs: Keyword arguments (dict) to send in checked action calls. | ||
| """ | ||
| super(QPushButton, self).__init__(parent=parent) | ||
| self.parent = parent | ||
| self.logger = create_logger(__name__) | ||
| self.tooltip = tooltip | ||
| self.cfg_section = cfg_section | ||
| self.cfg_option = cfg_option | ||
| self.current_font = QFont() | ||
| self.current_font.fromString(read_config(self.cfg_section, self.cfg_option, literal_eval=False)) | ||
| self.update_info() | ||
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| self.clicked.connect(self.open_font_dialog) | ||
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| def weight_map_lookup(self, weight): | ||
| """ | ||
| Checks if a weight exists in the font weight map, | ||
| if not then it reports it and returns a fallback string. | ||
| :param weight: | ||
| :return: | ||
| """ | ||
| if str(weight) in FONT_WEIGHT_MAP: | ||
| return FONT_WEIGHT_MAP[str(weight)] | ||
| else: | ||
| self.logger.error("Umatched font weight: {}!".format(weight)) | ||
| return "UNDEFINED({})".format(weight) | ||
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| def map_font_str(self, font_str): | ||
| """ | ||
| Maps a comma separated QFont.toString to a much more sensible dict, which it then returns. | ||
| QFont.toString composition (comma separated, always in the following order): | ||
| Family: Font family name. | ||
| Point size: Point size of the font. | ||
| -1 if the font size was specified in pixels. | ||
| Pixel size: Pixel size of the font if it was set with pixel size. | ||
| -1 if the size was set with point size. | ||
| Style hint: Affects the {QFont}{font matching} algorithm. See QFont.StyleHint and QFont constants. | ||
| Style hints are used by the {QFont}{font matching} algorithm to find an appropriate default family | ||
| if a selected font family is not available. | ||
| AnyStyle leaves the font matching algorithm to choose the family. This is the default. | ||
| 0 seems to be equivalent to Helvetica and 5 is AnyStyle. | ||
| Weight: Weight of the font (0-99), usually it's a predefined enum. | ||
| Qt uses a weighting scale from 0 to 99 similar to, but not the same as, the scales used in Windows or | ||
| CSS. A weight of 0 is ultralight, whilst 99 will be an extremely black. | ||
| Style: Style of the font (enum of the different styles of glyphs that are used to display text). | ||
| Only covers the following types: Normal = 0, Italic = 1, Oblique = 2 | ||
| Underline: Self-explanatory. | ||
| 0 if False, 1 if True. | ||
| Strikeout: Self-explanatory. | ||
| 0 if False, 1 if True. | ||
| Fixed pitch: Fixed pitch value of the matched window system font. | ||
| 0 if False, 1 if True. | ||
| Useful url: | ||
| shorthand: https://bit.ly/2XIjI5B | ||
| raw (with linebreaks): https://cep.xray.aps.anl.gov/software/qt4-x11-4.2.2-browser/ | ||
| d7/da1/class_q_font.html#5ab046d742a8538c2e2e50c2e03733ea | ||
| :param font_str: A string in the form of QFont.toString(). | ||
| :return: | ||
| """ | ||
| font_info = font_str.split(',') | ||
| font_info_map = {'family': str(font_info[0]), 'point_size': int(font_info[1]), | ||
| 'pixel_size': float(font_info[2]), 'style_hint': int(font_info[3]), | ||
| 'weight': self.weight_map_lookup(font_info[4]), 'style': int(font_info[5]), | ||
| 'underline': bool(int(font_info[6])), 'strikeout': bool(int(font_info[7])), | ||
| 'fixed_pitch': bool(int(font_info[8])), 'raw_mode': bool(int(font_info[9])), | ||
| 'font_style': str(font_info[10])} | ||
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| return font_info_map | ||
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| def format_qfont_str(self, font_str): | ||
| """ | ||
| Formats a QFont.toString to a more human readable string. | ||
| :param font_str: | ||
| :return: | ||
| """ | ||
| # Map the string to a font info map/dict. | ||
| f: dict = self.map_font_str(font_str) | ||
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| # Make a list of enabled setting keys. | ||
| enabled_bools = [] | ||
| for key, value in f.items(): | ||
| if value is True: | ||
| enabled_bools.append(HUMAN_READABLE_KEYS[key]) | ||
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| # It is guaranteed to be either pt or px, so ternary works fine for this. | ||
| pt_or_px = "{}pt.".format(f['point_size']) if f['point_size'] != -1 else "{}px.".format(f['pixel_size']) | ||
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| # Determine the enabled (boolean) settings: | ||
| bools = [] | ||
| for boolean in enabled_bools: | ||
| bools.append(boolean) | ||
| bools.append(", ") | ||
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| if len(bools) > 0: | ||
| # Strip trailing runaway comma-space delimiter | ||
| bools = bools[:-1] | ||
|
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| # Wrap in parenthesis | ||
| bools.insert(0, '(') | ||
| bools.append(')') | ||
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| # Retval for weight (optional): " (" + f['weight'] + ")" if f['weight'] != f['font_style'] else "", | ||
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| return "{} ({}) {} {}".format(f['family'], f['font_style'], pt_or_px, | ||
| "".join(bools) if not len(bools) == 0 else "") | ||
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| def update_info(self): | ||
| """ | ||
| Update info (various text/labels etc). | ||
| :return: | ||
| """ | ||
| self.setText(self.format_qfont_str(self.current_font.toString())) | ||
| if self.tooltip: | ||
| self.setToolTip(self.tooltip) | ||
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| def open_font_dialog(self): | ||
| """ | ||
| Opens a QFontDialog and updates current font and config with the choice (if any). | ||
| :return: | ||
| """ | ||
| font = QFont() | ||
| font.fromString(read_config(self.cfg_section, self.cfg_option, literal_eval=False)) | ||
| font, ok = QFontDialog.getFont() | ||
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| # If user selected a font. | ||
| if ok: | ||
| # Update current font ref. | ||
| self.current_font = font | ||
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| # Save selected font to config. | ||
| set_config(self.cfg_section, self.cfg_option, font.toString()) | ||
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| # Make button text reflect changes. | ||
| self.update_info() | ||
|
|
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