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
|
#!/usr/bin/python
# .+
#
# .identifier : $Id:$
# .context : Application View Controller
# .title : list tree view widget display capabilities (Qt3)
# .kind : python source
# .author : Fabrizio Pollastri
# .site : Revello - Italy
# .creation : 9-Dec-2008
# .copyright : (c) 2008 Fabrizio Pollastri.
# .license : GNU General Public License (see below)
#
# This file is part of "AVC, Application View Controller".
#
# AVC 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.
#
# AVC 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 <http://www.gnu.org/licenses/>.
#
# .-
from qt import * # Qt interface
from qtui import * # ui files realizer
import copy # object cloning support
import sys # system support
from avc import * # AVC
UI_FILE = 'qt3_listtreeview.ui' # qt ui descriptor
UPDATE_PERIOD = 2000 # ms
class Example(QApplication,AVC):
"""
Showcase of display capabilities for the list tree view widget
"""
def __init__(self):
# create GUI
QApplication.__init__(self,sys.argv)
self.root = QWidgetFactory.create(UI_FILE)
self.setMainWidget(self.root)
self.root.show()
# connected variables
self.list = {'head':['col1 int','col2 str'], \
'body':[[1,'one'],[2,'two'],[3,'three']]}
self.list_work = copy.deepcopy(self.list)
self.tree = {'head':['col1 int','col2 str'],'body':{ \
# root rows
'1':[1,'one'], \
'2':[2,'two'], \
# children of root row '1'
'1.1':[11,'one one'], \
'1.2':[12,'one two'], \
# children of root row '2'
'2.1':[21,'two one'], \
'2.2':[22,'two two']}}
# start variables update
update = self.update()
self.timer1 = QTimer()
QObject.connect(self.timer1,SIGNAL("timeout()"),update.next)
self.timer1.start(UPDATE_PERIOD)
def update(self):
"""
Tabular data rows data are rolled down.
"""
rows_num = len(self.list['body'])
while True:
# save last row of data
last_row = self.list_work['body'][-1]
# shift down one position each data row
for i in range(1,rows_num):
self.list_work['body'][-i] = \
self.list_work['body'][-1-i]
# copy last row into first position
self.list_work['body'][0] = last_row
# copy working copy into connected variable
self.list = self.list_work
yield True
#### MAIN
example = Example() # instantiate the application
example.avc_init() # connect widgets with variables
example.exec_loop() # run Qt event loop until quit
### END
|