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#!/usr/bin/env python3
""" gpu-utils - GPUgui module to support gui in rickslab-gpu-utils.
Copyright (C) 2020 RicksLab
This program is free software: you can redistribute it and/or modify it
under the terms of the GNU General Public License as published by the Free
Software Foundation, either version 3 of the License, or (at your option)
any later version.
This program is distributed in the hope that it will be useful, but WITHOUT
ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
more details.
You should have received a copy of the GNU General Public License along with
this program. If not, see <https://www.gnu.org/licenses/>.
"""
__author__ = 'RicksLab'
__copyright__ = 'Copyright (C) 2020 RicksLab'
__license__ = 'GNU General Public License'
__program_name__ = 'gpu-utils'
__maintainer__ = 'RicksLab'
__docformat__ = 'reStructuredText'
# pylint: disable=multiple-statements
# pylint: disable=line-too-long
# pylint: disable=consider-using-f-string
from typing import Tuple, Dict
import sys
import re
import logging
import warnings
try:
import gi
gi.require_version('Gtk', '3.0')
from gi.repository import Gtk, Gdk
except ModuleNotFoundError as error:
print('gi import error: {}'.format(error))
print('gi is required for {}'.format(__program_name__))
print(' In a venv, first install vext: pip install --no-cache-dir vext')
print(' Then install vext.gi: pip install --no-cache-dir vext.gi')
sys.exit(0)
from GPUmodules.env import GutConst
ColorDict = Dict[str, str]
LOGGER = logging.getLogger('gpu-utils')
PATTERNS = GutConst.PATTERNS
def get_color(value: str) -> str:
"""
Get the rgb hex string for the provided color name.
:param value: A valid project color name.
:return: rrb value as a hex string.
"""
return GuiProps.color_name_to_hex(value)
class GuiProps:
"""
Class to manage style properties of Gtk widgets.
"""
_colors: ColorDict = {'white': '#FFFFFF',
'white_off': '#FCFCFC',
'white_pp': '#F0E5D3',
'cream': '#FFFDD1',
'gray20': '#CCCCCC',
'gray50': '#7F7F7F',
'gray60': '#666666',
'gray70': '#4D4D4D',
'gray80': '#333333',
'gray95': '#0D0D0D',
'gray_dk': '#6A686E',
'black': '#000000',
# Colors Low Contrast - For table fields
'green': '#8EC3A7',
'green_dk': '#6A907C',
'teal': '#218C8D',
'olive': '#6C9040',
'red': '#B73743',
'orange': '#E86850',
'yellow': '#C9A100',
'blue': '#587498',
'purple': '#6264A7',
# Colors Bright - For plot lines
'br_red': '#FF2D2D',
'br_orange': '#FF6316',
'br_blue': '#66CCFF',
'br_pink': '#CC00FF',
'br_green': '#99FF99',
'br_yellow': '#FFFF66',
# Slate - For table fields
'slate_lt': '#A0A0AA',
'slate_md': '#80808d',
'slate_dk': '#5D5D67',
'slate_vdk': '#3A3A40'}
@staticmethod
def color_name_to_hex(value: str) -> str:
"""
Return the hex code for the given string. The specified string must exist in the project color list.
:param value: Color name
:return: Color hex code
"""
if value not in GuiProps._colors:
raise ValueError('Invalid color name {} not in {}'.format(value, GuiProps._colors))
return GuiProps._colors[value]
@staticmethod
def color_name_to_rgba(value: str) -> Tuple[float, ...]:
"""
Convert the given color name to a color tuple. The given color string mus exist in the project
color list.
:param value: Color name
:return: Color tuple
"""
if value not in GuiProps._colors:
raise ValueError('Invalid color name {} not in {}'.format(value, GuiProps._colors))
return GuiProps.hex_to_rgba(GuiProps._colors[value])
@staticmethod
def hex_to_rgba(value: str) -> Tuple[float, ...]:
"""
Return rgba tuple for give hex color name.
:param value: hex color value as string
:return: rgba tuple
.. note:: Code copied from Stack Overflow
"""
if not re.fullmatch(PATTERNS['HEXRGB'], value):
raise ValueError('Invalid hex color format in {}'.format(value))
value = value.lstrip('#')
if len(value) != 6:
raise ValueError('Invalid hex color format in {}'.format(value))
(r_1, g_1, b_1, a_1) = tuple(int(value[i:i + 2], 16) for i in range(0, 6, 2)) + (1,)
(r_1, g_1, b_1, a_1) = (r_1 / 255.0, g_1 / 255.0, b_1 / 255.0, a_1)
return tuple([r_1, g_1, b_1, a_1])
@staticmethod
def set_gtk_prop(gui_item, top: int = None, bottom: int = None, right: int = None,
left: int = None, width: int = None, width_chars: int = None, width_max: int = None,
max_length: int = None, align: tuple = None, xalign: float = None) -> None:
"""
Set properties of Gtk objects.
:param gui_item: Gtk object
:param top: Top margin
:param bottom: Bottom margin
:param right: Right margin
:param left: Left margin
:param width: Width of request field
:param width_chars: Width of label
:param width_max: Max Width of object
:param max_length: max length of entry
:param align: Alignment parameters
:param xalign: X Alignment parameter
"""
if top:
gui_item.set_property('margin-top', top)
if bottom:
gui_item.set_property('margin-bottom', bottom)
if right:
gui_item.set_property('margin-right', right)
if left:
gui_item.set_property('margin-left', left)
if width:
gui_item.set_property('width-request', width)
if width_max:
gui_item.set_max_width_chars(width_max)
if width_chars:
gui_item.set_width_chars(width_chars)
if max_length:
gui_item.set_max_length(max_length)
with warnings.catch_warnings():
warnings.filterwarnings('ignore', category=DeprecationWarning)
if xalign:
# FIXME - This is deprecated in latest Gtk, need to use halign
gui_item.set_alignment(xalign=xalign)
if align:
# FIXME - This is deprecated in latest Gtk, need to use halign
gui_item.set_alignment(*align)
@classmethod
def set_style(cls, css_str=None) -> None:
"""
Set the specified css style, or set default styles if no css string is specified.
:param css_str: A valid css format string.
"""
css_list = []
if css_str is None:
# Initialize formatting colors.
css_list.append("grid { background-image: image(%s); }" % cls._colors['gray80'])
css_list.append("#light_grid { background-image: image(%s); }" % cls._colors['gray20'])
css_list.append("#dark_grid { background-image: image(%s); }" % cls._colors['gray70'])
css_list.append("#dark_box { background-image: image(%s); }" % cls._colors['slate_dk'])
css_list.append("#med_box { background-image: image(%s); }" % cls._colors['slate_md'])
css_list.append("#light_box { background-image: image(%s); }" % cls._colors['slate_lt'])
css_list.append("#head_box { background-image: image(%s); }" % cls._colors['blue'])
css_list.append("#warn_box { background-image: image(%s); }" % cls._colors['red'])
css_list.append("#button_box { background-image: image(%s); }" % cls._colors['slate_dk'])
css_list.append("#message_box { background-image: image(%s); }" % cls._colors['gray50'])
css_list.append("#message_label { color: %s; }" % cls._colors['white_off'])
css_list.append("#warn_label { color: %s; }" % cls._colors['white_pp'])
css_list.append("#white_label { color: %s; }" % cls._colors['white_off'])
css_list.append("#black_label { color: %s; }" % cls._colors['gray95'])
css_list.append("#ppm_combo { background-image: image(%s); color: %s; }" %
(cls._colors['green'], cls._colors['black']))
css_list.append("button { background-image: image(%s); color: %s; }" %
(cls._colors['slate_lt'], cls._colors['black']))
css_list.append("entry { background-image: image(%s); color: %s; }" %
(cls._colors['green'], cls._colors['gray95']))
# Below format does not work.
css_list.append("entry:selected { background-image: image(%s); color: %s; }" %
(cls._colors['yellow'], cls._colors['white']))
else:
css_list.append(css_str)
LOGGER.info('css %s', css_list)
screen = Gdk.Screen.get_default()
for css_item in css_list:
provider = Gtk.CssProvider()
css = css_item.encode('utf-8')
provider.load_from_data(css)
style_context = Gtk.StyleContext()
style_context.add_provider_for_screen(screen, provider, Gtk.STYLE_PROVIDER_PRIORITY_APPLICATION)
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