FGFS-4.1/gr-air-modes
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Using a delegate instead for coloring. Text color works but we don't get nice highlighting. Wish we could alter the painter and use the default paint().

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This commit is contained in:
Nick Foster 2012-07-10 16:08:24 -07:00
parent ed006f71b5
commit 855535644f
1 changed files with 17 additions and 3 deletions
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20
apps/modes_gui
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@ -1,6 +1,6 @@
#!/usr/bin/python
import os, sys, time, threading
import os, sys, time, threading, datetime
from PyQt4 import QtCore,QtGui,QtSql
from gnuradio import gr, gru, optfir, eng_notation, blks2
import gnuradio.gr.gr_threading as _threading
@ -62,12 +62,14 @@ class mainwindow(QtGui.QMainWindow):
self.db.open()
#self.db = sqlite3.connect(self.dbname)
self.datamodel = modes_datamodel(self.db)
#self.datamodel = QtSql.QSqlQueryModel(None)
#self.datamodel.setQuery(QtSql.QSqlQuery("select distinct icao from positions order by icao"))
self.ui.list_aircraft.setModel(self.datamodel)
self.ui.list_aircraft.setModelColumn(0)
self.icaodelegate = ICAOViewDelegate()
self.ui.list_aircraft.setItemDelegate(self.icaodelegate)
#self.ui.list_aircraft.show() #TODO remove
#todo add a custom delegate for the QListView
#goes and gets valid antenna, sample rate options from the device and grays out appropriate things
def populate_source_options(self):
sourceid = self.ui.combo_source.currentText()
@ -239,6 +241,18 @@ class mainwindow(QtGui.QMainWindow):
self.ui.line_speed.insert(speed)
self.ui.line_climb.insert(vs)
#all this does is fade the ICAOs out as their last report gets older
class ICAOViewDelegate(QtGui.QStyledItemDelegate):
def paint(self, painter, option, index):
paintstr = "%s" % index.model().data(index.model().index(index.row(), 0))
last_report = index.model().data(index.model().index(index.row(), 1))
age = (datetime.datetime.now() - datetime.datetime.strptime(str(last_report), "%Y-%m-%d %H:%M:%S")).total_seconds()
#minimum alpha is 0x40 (oldest), max is 0xFF (newest)
alpha = min(abs(0xFF - (0xBF / 600.) * age), 0x40)
painter.setPen(QtGui.QColor(0, 0, 0, alpha))
#QtGui.QStyledItemDelegate.paint(self, painter, option, index)
painter.drawText(option.rect.left()+3, option.rect.top(), option.rect.width(), option.rect.height(), option.displayAlignment, paintstr)
#eventually: set up a QTimer or whatever and have it self-update and emit dataChanged()
#better yet just have the SQL interface yell and say hey that line changed.
#on selected aircraft or on update for visible aircraft, emit signal to update current dashboard display.