pylot/pylot/core/util/gui.py

103 lines
3.3 KiB
Python

#!/usr/bin/env python
# -*- coding: utf-8 -*-
import os
try:
import pyqtgraph as pg
except Exception as e:
print('Warning: Could not import module pyqtgraph.')
try:
from PySide2 import QtCore
except Exception as e:
print('Warning: Could not import module QtCore.')
from pylot.core.util.utils import pick_color
def pick_linestyle_pg(picktype, key):
"""
Get Qt line style by picktype and pick parameter (earliest/latest possible pick, symmetric picking error or
most probable pick)
:param picktype: 'manual' or 'automatic'
:type picktype: str
:param key: which pick parameter should be plotted, 'mpp', 'epp', 'lpp' or 'spe'
:type key: str
:return: Qt line style parameters
:rtype:
"""
linestyles_manu = {'mpp': (QtCore.Qt.SolidLine, 2.),
'epp': (QtCore.Qt.DashLine, 1.),
'lpp': (QtCore.Qt.DashLine, 1.),
'spe': (QtCore.Qt.DashLine, 1.)}
linestyles_auto = {'mpp': (QtCore.Qt.DotLine, 2.),
'epp': (QtCore.Qt.DashDotLine, 1.),
'lpp': (QtCore.Qt.DashDotLine, 1.),
'spe': (QtCore.Qt.DashDotLine, 1.)}
linestyles = {'manual': linestyles_manu,
'auto': linestyles_auto}
return linestyles[picktype][key]
def which(program, parameter):
"""
takes a program name and returns the full path to the executable or None
modified after: http://stackoverflow.com/questions/377017/test-if-executable-exists-in-python
:param program: name of the desired external program
:type program: str
:return: full path of the executable file
:rtype: str
"""
try:
from PySide2.QtCore import QSettings
settings = QSettings()
for key in settings.allKeys():
if 'binPath' in key:
os.environ['PATH'] += ':{0}'.format(settings.value(key))
nllocpath = ":" + parameter.get('nllocbin')
os.environ['PATH'] += nllocpath
except Exception as e:
print(e)
def is_exe(fpath):
return os.path.exists(fpath) and os.access(fpath, os.X_OK)
def ext_candidates(fpath):
yield fpath
for ext in os.environ.get("PATHEXT", "").split(os.pathsep):
yield fpath + ext
fpath, fname = os.path.split(program)
if fpath:
if is_exe(program):
return program
else:
for path in os.environ["PATH"].split(os.pathsep):
exe_file = os.path.join(path, program)
for candidate in ext_candidates(exe_file):
if is_exe(candidate):
return candidate
return None
def make_pen(picktype, phase, key, quality):
"""
Make PyQtGraph.QPen
:param picktype: 'manual' or 'automatic'
:type picktype: str
:param phase: 'P' or 'S'
:type phase: str
:param key: 'mpp', 'epp', 'lpp' or 'spe', (earliest/latest possible pick, symmetric picking error or
most probable pick)
:type key: str
:param quality: quality class of pick, decides color modifier
:type quality: int
:return: PyQtGraph QPen
:rtype: `~QPen`
"""
if pg:
rgba = pick_color(picktype, phase, quality)
linestyle, width = pick_linestyle_pg(picktype, key)
pen = pg.mkPen(rgba, width=width, style=linestyle)
return pen