b8abcfaf85
to not recreate them when another module/param got selected Change-Id: Ic81bd8e3105f666d3a03dffb3de4e15603d99c39 Reviewed-on: https://forge.frm2.tum.de/review/17276 Tested-by: JenkinsCodeReview <bjoern_pedersen@frm2.tum.de> Reviewed-by: Enrico Faulhaber <enrico.faulhaber@frm2.tum.de>
324 lines
11 KiB
Python
324 lines
11 KiB
Python
# -*- coding: utf-8 -*-
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# *****************************************************************************
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# Copyright (c) 2015-2016 by the authors, see LICENSE
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#
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# This program is free software; you can redistribute it and/or modify it under
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# the terms of the GNU General Public License as published by the Free Software
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# Foundation; either version 2 of the License, or (at your option) any later
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# version.
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#
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# This program is distributed in the hope that it will be useful, but WITHOUT
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# ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS
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# FOR A PARTICULAR PURPOSE. See the GNU General Public License for more
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# details.
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#
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# You should have received a copy of the GNU General Public License along with
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# this program; if not, write to the Free Software Foundation, Inc.,
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# 59 Temple Place, Suite 330, Boston, MA 02111-1307 USA
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#
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# Module authors:
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# Alexander Lenz <alexander.lenz@frm2.tum.de>
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#
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# *****************************************************************************
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import pprint
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import json
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from time import sleep
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from PyQt4.QtGui import QWidget, QTextCursor, QFont, QFontMetrics, QLabel, QMessageBox
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from PyQt4.QtCore import pyqtSignature as qtsig, Qt
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from secop.gui.util import loadUi
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from secop.protocol.errors import SECOPError
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from secop.datatypes import StringType, EnumType
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class NodeCtrl(QWidget):
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def __init__(self, node, parent=None):
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super(NodeCtrl, self).__init__(parent)
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loadUi(self, 'nodectrl.ui')
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self._node = node
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self.contactPointLabel.setText(self._node.contactPoint)
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self.equipmentIdLabel.setText(self._node.equipmentId)
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self.protocolVersionLabel.setText(self._node.protocolVersion)
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self.nodeDescriptionLabel.setText(self._node.describingData['properties'].get(
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'description', 'no description available'))
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self._clearLog()
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# now populate modules tab
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self._init_modules_tab()
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@qtsig('')
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def on_sendPushButton_clicked(self):
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msg = self.msgLineEdit.text().strip()
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if not msg:
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return
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self._addLogEntry(
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'<span style="font-weight:bold">Request:</span> '
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'%s:' % msg,
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raw=True)
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# msg = msg.split(' ', 2)
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try:
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reply = self._node.syncCommunicate(*self._node.decode_message(msg))
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if msg == 'describe':
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_, eid, stuff = self._node.decode_message(reply)
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reply = '%s %s %s' % (_, eid, json.dumps(
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stuff, indent=2, separators=(',', ':'), sort_keys=True))
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self._addLogEntry(reply, newline=True, pretty=False)
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else:
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self._addLogEntry(reply, newline=True, pretty=True)
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except SECOPError as e:
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self._addLogEntry(
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'error %s %s' % (e.name, json.dumps(e.args)),
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newline=True,
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pretty=True,
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error=True)
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@qtsig('')
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def on_clearPushButton_clicked(self):
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self._clearLog()
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def _clearLog(self):
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self.logTextBrowser.clear()
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self._addLogEntry('SECoP Communication Shell')
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self._addLogEntry('=========================')
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self._addLogEntry('', newline=True)
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def _addLogEntry(self,
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msg,
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newline=False,
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pretty=False,
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raw=False,
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error=False):
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if pretty:
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msg = pprint.pformat(msg, width=self._getLogWidth())
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msg = msg[1:-1]
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if not raw:
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if error:
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msg = '<div style="color:#FF0000"><b><pre>%s</pre></b></div>' % Qt.escape(
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str(msg)).replace('\n', '<br />')
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else:
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msg = '<pre>%s</pre>' % Qt.escape(str(msg)).replace('\n',
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'<br />')
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content = ''
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if self.logTextBrowser.toPlainText():
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content = self.logTextBrowser.toHtml()
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content += msg
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if newline:
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content += '<br />'
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self.logTextBrowser.setHtml(content)
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self.logTextBrowser.moveCursor(QTextCursor.End)
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def _getLogWidth(self):
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fontMetrics = QFontMetrics(QFont('Monospace'))
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# calculate max avail characters by using an a (which is possible
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# due to monospace)
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result = self.logTextBrowser.width() / fontMetrics.width('a')
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return result
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def _init_modules_tab(self):
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self._moduleWidgets = []
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layout = self.scrollAreaWidgetContents.layout()
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labelfont = self.font()
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labelfont.setBold(True)
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row = 0
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for modname in sorted(self._node.modules):
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modprops = self._node.getModuleProperties(modname)
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if 'interface_class' in modprops:
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interfaces = modprops['interface_class']
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else:
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interfaces = modprops['interfaces']
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description = modprops['description']
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# fallback: allow (now) invalid 'Driveable'
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if 'Drivable' in interfaces or 'Driveable' in interfaces:
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widget = DrivableWidget(self._node, modname, self)
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unit = self._node.getProperties(modname, 'value').get('unit', '')
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elif 'Readable' in interfaces:
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widget = ReadableWidget(self._node, modname, self)
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unit = self._node.getProperties(modname, 'value').get('unit', '')
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else:
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widget = QLabel('Unsupported Interfaceclass %r' % interfaces)
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unit = ''
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if unit:
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labelstr = '%s (%s):' % (modname, unit)
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else:
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labelstr = '%s:' % (modname,)
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label = QLabel(labelstr)
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label.setFont(labelfont)
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if description:
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widget.setToolTip(description)
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layout.addWidget(label, row, 0)
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layout.addWidget(widget, row, 1)
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row += 1
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self._moduleWidgets.extend((label, widget))
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layout.setRowStretch(row, 1)
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class ReadableWidget(QWidget):
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def __init__(self, node, module, parent=None):
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super(ReadableWidget, self).__init__(parent)
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self._node = node
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self._module = module
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# XXX: avoid a nasty race condition, mainly biting on M$
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for i in range(30):
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if 'status' in self._node.describing_data['modules'][module]['parameters']:
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break
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sleep(0.01*i)
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self._status_type = self._node.getProperties(
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self._module, 'status').get('datatype')
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params = self._node.getProperties(self._module, 'value')
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datatype = params.get('datatype', StringType())
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self._is_enum = isinstance(datatype, EnumType)
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loadUi(self, 'modulebuttons.ui')
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# populate comboBox, keeping a mapping of Qt-index to EnumValue
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if self._is_enum:
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self._map = {} # maps QT-idx to name/value
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self._revmap = {} # maps value/name to QT-idx
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for idx, (val, name) in enumerate(
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sorted(datatype.entries.items())):
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self._map[idx] = (name, val)
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self._revmap[name] = idx
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self._revmap[val] = idx
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self.targetComboBox.addItem(name, val)
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self._init_status_widgets()
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self._init_current_widgets()
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self._init_target_widgets()
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self._node.newData.connect(self._updateValue)
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def _get(self, pname, fallback=Ellipsis):
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params = self._node.queryCache(self._module)
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if pname in params:
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return params[pname].value
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try:
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# if queried, we get the qualifiers as well, but don't want them
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# here
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import mlzlog
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mlzlog.getLogger('cached values').warn(
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'no cached value for %s:%s' % (self._module, pname))
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val = self._node.getParameter(self._module, pname)[0]
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return val
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except Exception:
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self.log.exception()
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if fallback is not Ellipsis:
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return fallback
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raise
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def _init_status_widgets(self):
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self.update_status(self._get('status', (999, '<not supported>')), {})
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# XXX: also connect update_status signal to LineEdit ??
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def update_status(self, status, qualifiers=None):
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display_string = self._status_type.subtypes[0].entries.get(status[0])
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if status[1]:
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display_string += ':' + status[1]
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self.statusLineEdit.setText(display_string)
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# may change meaning of cmdPushButton
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def _init_current_widgets(self):
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self.update_current(self._get('value', ''), {})
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def update_current(self, value, qualifiers=None):
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self.currentLineEdit.setText(str(value))
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def _init_target_widgets(self):
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# Readable has no target: disable widgets
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self.targetLineEdit.setHidden(True)
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self.targetComboBox.setHidden(True)
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self.cmdPushButton.setHidden(True)
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def update_target(self, target, qualifiers=None):
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pass
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def target_go(self, target):
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print self, target
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try:
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self._node.setParameter(self._module, 'target', target)
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except Exception as e:
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self.log.exception(e)
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QMessageBox.warning(self.parent(), 'Operation failed', str(e))
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def _updateValue(self, module, parameter, value):
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if module != self._module:
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return
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if parameter == 'status':
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self.update_status(*value)
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elif parameter == 'value':
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self.update_current(*value)
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elif parameter == 'target':
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self.update_target(*value)
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class DrivableWidget(ReadableWidget):
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def _init_target_widgets(self):
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if self._is_enum:
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# EnumType: disable Linedit
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self.targetLineEdit.setHidden(True)
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else:
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# normal types: disable Combobox
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self.targetComboBox.setHidden(True)
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target = self._get('target', None)
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if target:
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if isinstance(target, list) and isinstance(target[1], dict):
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self.update_target(target[0])
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else:
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self.update_target(target)
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def update_current(self, value, qualifiers=None):
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if self._is_enum:
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self.currentLineEdit.setText(self._map[self._revmap[value]][0])
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else:
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self.currentLineEdit.setText(str(value))
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def update_target(self, target, qualifiers=None):
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if self._is_enum:
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# update selected item
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if target in self._revmap:
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self.targetComboBox.setCurrentIndex(self._revmap[target])
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else:
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print(
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"%s: Got invalid target value %r!" %
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(self._module, target))
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else:
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self.targetLineEdit.setText(str(target))
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def on_cmdPushButton_clicked(self, toggle=False):
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if toggle:
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return
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if self._is_enum:
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self.on_targetComboBox_activated()
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else:
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self.on_targetLineEdit_returnPressed()
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def on_targetLineEdit_returnPressed(self):
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self.target_go(self.targetLineEdit.text())
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def on_targetComboBox_activated(self, stuff=''):
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if isinstance(stuff, (str, unicode)):
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return
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self.target_go(self._map[self.targetComboBox.currentIndex()][0])
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