1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
|
#!/usr/bin/env python3
#
# Qtvcp widget
# Copyright (c) 2017 Chris Morley
#
# 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 2 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.
###############################################################################
import hal
from qtvcp.widgets.widget_baseclass import _HalWidgetBase
from PyQt5.QtCore import pyqtProperty, pyqtSlot, QVariant
from qtvcp.widgets.simple_widgets import ScaledLabel
from qtvcp import logger
# Instantiate the libraries with global reference
# LOG is for running code logging
LOG = logger.getLogger(__name__)
# Force the log level for this module
# LOG.setLevel(logger.INFO) # One of DEBUG, INFO, WARNING, ERROR, CRITICAL
################################################################
class HALLabel(ScaledLabel, _HalWidgetBase):
def __init__(self, parent=None):
super(HALLabel, self).__init__(parent)
self._textTemplate = '%f'
self.istate = False
self._pin_name = ''
self._bit_pin_type = True
self._s32_pin_type = False
self._float_pin_type = False
self._use_multi_label = False
self._multi_label_list = ['Label 0','Label 1','Label 2']
def _hal_init(self):
super()._hal_init()
if self._pin_name == '':
pname = self.HAL_NAME_
else:
pname = self._pin_name
if self._bit_pin_type:
self.hal_pin = self.HAL_GCOMP_.newpin(pname, hal.HAL_BIT, hal.HAL_IN)
self.hal_pin.value_changed.connect(lambda data: self._setText(data))
elif self._float_pin_type:
self.hal_pin = self.HAL_GCOMP_.newpin(pname, hal.HAL_FLOAT, hal.HAL_IN)
self.hal_pin.value_changed.connect(lambda data: self._setText(data))
elif self._s32_pin_type or self._use_multi_label:
self.hal_pin = self.HAL_GCOMP_.newpin(pname, hal.HAL_S32, hal.HAL_IN)
if self._s32_pin_type:
self.hal_pin.value_changed.connect(lambda data: self._setText(data))
else:
self.hal_pin.value_changed.connect(lambda data: self._changeText(data))
# display formatted text
def _setText(self, data):
try:
tmpl = lambda s: str(self._textTemplate) % s
self.setText(tmpl(data))
except Exception as e:
LOG.warning('Widget "{}" format error: {}'.format(self.objectName(),e))
# select text from a list
def _changeText(self, data):
if data < 0 or data >= len(self._multi_label_list):
self.setText('')
else:
self._setText(self._multi_label_list[data])
# one can connect signals to this widget to
# feed an input that gets formatted by this widget.
@pyqtSlot(float)
@pyqtSlot(int)
@pyqtSlot(bool)
def setDisplay(self, data):
self._setText(data)
@pyqtSlot(int)
def selectLabel(self,data):
self._changeText(data)
#########################################################################
# This is how designer can interact with our widget properties.
# designer will show the pyqtProperty properties in the editor
# it will use the get set and reset calls to do those actions
########################################################################
def _toggle_properties(self, picked):
data = ('bit_pin_type', 's32_pin_type',
'float_pin_type','use_multi_label')
for i in data:
if not i == picked:
self[i] = False
def set_pin_name(self, value):
self._pin_name = value
def get_pin_name(self):
return self._pin_name
def reset_pin_name(self):
self._pin_name = ''
def set_bit_pin_type(self, value):
self._bit_pin_type = value
if value:
self._toggle_properties('bit_pin_type')
def get_bit_pin_type(self):
return self._bit_pin_type
def reset_bit_pin_type(self):
self._bit_pin_type = ''
def set_s32_pin_type(self, value):
self._s32_pin_type = value
if value:
self._toggle_properties('s32_pin_type')
def get_s32_pin_type(self):
return self._s32_pin_type
def reset_s32_pin_type(self):
self._s32_pin_type = ''
def set_float_pin_type(self, value):
self._float_pin_type = value
if value:
self._toggle_properties('float_pin_type')
def get_float_pin_type(self):
return self._float_pin_type
def reset_float_pin_type(self):
self._float_pin_type = ''
def set_use_multi_label(self, value):
self._use_multi_label = value
if value:
self._toggle_properties('use_multi_label')
def get_use_multi_label(self):
return self._use_multi_label
def reset_use_multi_label(self):
self._use_multi_label = ''
def set_textTemplate(self, data):
self._textTemplate = data
def get_textTemplate(self):
return self._textTemplate
def reset_textTemplate(self):
self._textTemplate = '%d'
def set_multi_label_l(self, data):
self._multi_label_list = data
def get_multi_label_l(self):
return self._multi_label_list
def reset_multi_label_l(self):
self._multi_label_list = ['Label 0','Label 1','Label 2']
# designer will show these properties in this order:
pin_name = pyqtProperty(str, get_pin_name, set_pin_name, reset_pin_name)
bit_pin_type = pyqtProperty(bool, get_bit_pin_type, set_bit_pin_type, reset_bit_pin_type)
s32_pin_type = pyqtProperty(bool, get_s32_pin_type, set_s32_pin_type, reset_s32_pin_type)
float_pin_type = pyqtProperty(bool, get_float_pin_type, set_float_pin_type, reset_float_pin_type)
use_multi_label = pyqtProperty(bool, get_use_multi_label, set_use_multi_label, reset_use_multi_label)
textTemplate = pyqtProperty(str, get_textTemplate, set_textTemplate, reset_textTemplate)
multi_label_list = pyqtProperty(QVariant.typeToName(QVariant.StringList),
get_multi_label_l, set_multi_label_l, reset_multi_label_l)
##############################
# required class boiler code #
##############################
def __getitem__(self, item):
return getattr(self, item)
def __setitem__(self, item, value):
return setattr(self, item, value)
|
