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comparison python/logview.py @ 281:4496cae24d7f

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Improved logview
author Windel Bouwman
date Sat, 02 Nov 2013 11:11:40 +0100
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280:02385f62f250 281:4496cae24d7f
1 #!/usr/bin/python
2
3 import sys
4 import os
5 import logging
6 import datetime
7
8 from PyQt4.QtGui import QApplication, QWidget, QTableView, QVBoxLayout
9 from PyQt4.QtGui import QHeaderView
10 from PyQt4.QtCore import Qt
11 from PyQt4.QtCore import QAbstractTableModel
12
13 def formatTime(t):
14 t2 = datetime.datetime.fromtimestamp(t)
15 return t2.strftime('%H:%M:%S')
16
17 class LogModel(QAbstractTableModel):
18 def __init__(self):
19 super().__init__()
20 self.entries = []
21 self.headers = ['Time', 'Level', 'Logger', 'Message']
22 self.txts = []
23 self.txts.append(lambda e: str(formatTime(e.created)))
24 self.txts.append(lambda e: str(e.levelname))
25 self.txts.append(lambda e: str(e.name))
26 self.txts.append(lambda e: str(e.msg))
27
28 def rowCount(self, parent):
29 return len(self.entries)
30
31 def columnCount(self, parent):
32 return len(self.headers)
33
34 def data(self, index, role):
35 if not index.isValid():
36 return
37 row, col = index.row(), index.column()
38 if role == Qt.DisplayRole:
39 le = self.entries[row]
40 return self.txts[col](le)
41
42 def headerData(self, section, orientation, role):
43 if orientation == Qt.Horizontal and role == Qt.DisplayRole:
44 return self.headers[section]
45
46 def newLog(self, x):
47 self.entries.append(x)
48 self.modelReset.emit()
49
50
51 class LogView(QWidget):
52 """ Log view component """
53 def __init__(self, parent=None):
54 super().__init__(parent)
55 l = QVBoxLayout(self)
56 self.tv = QTableView(self)
57 self.tv.horizontalHeader().setStretchLastSection(True)
58 l.addWidget(self.tv)
59 self.lm = LogModel()
60 self.tv.setModel(self.lm)
61
62 class MyHandler(logging.Handler):
63 def emit(self2, x):
64 self.lm.newLog(x)
65 self.tv.scrollToBottom()
66 for i in range(3):
67 self.tv.resizeColumnToContents(i)
68
69 logging.getLogger().addHandler(MyHandler())
70
71
72 if __name__ == '__main__':
73 app = QApplication(sys.argv)
74 lv = LogView()
75 lv.show()
76 lv.resize(600, 200)
77 logging.error('Error!!!')
78 logging.warn('Warn here!')
79 app.exec_()
80