[DESKTOP] Export of session and simultaneous download produced empty file

[will-hart]

To reproduce: start / stop a logging session. Once it saves, open session list, click checkbox to download then immediately click the "Download" button. Mouse paused and then the exported CSV file was empty

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• Bitbucket: https://bitbucket.org/willhart/blitz_gui/issue/37
• Originally Reported By: Will Hart
• Originally Created At: 2014-03-03T22:39:02.252

[will-hart]

Implement processing messages. Fixes #43, Fixes #37

→ <<cset 7717c2462817>>

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Original Comment By: Will Hart

[will-hart]

Need to improve the list box. Something like this may be appropriate:

#!python

#! /usr/bin/env python
# -*- coding: utf-8 -*-
import sys
from PyQt4 import QtCore
from PyQt4 import QtGui

class MyRelationalDelegate(QtGui.QStyledItemDelegate):
    def __init__(self, parent=None):
        self.choices = {1: 'One', 2: 'Two', 3:'Three', 7: 'Seven'}
        super(MyRelationalDelegate, self).__init__(parent)

    def paint(self, painter, option, index):
        styleOption = QtGui.QStyleOptionViewItemV4(option)
        # define the text to be shown
        text = self.choices[index.data(QtCore.Qt.DisplayRole).toInt()[0]] # value in choices dict corresponding to integer stored in tablewidget model
        styleOption.text = text
        # paint the cell
        self.parent().style().drawControl(QtGui.QStyle.CE_ ItemViewItem, styleOption, painter) 

    def createEditor(self, parent, option, index):
        combobox = QtGui.QComboBox(parent)
        combobox.setEditable(True)
        for c in sorted(self.choices.items()): 
            combobox.addItem(c[1], c[0]) # Add items to combobox, storing display text in DisplayRole and underlying value in UserRole
        return combobox

    def select_line_editor(self):
        self.line_editor.setText("")

    def setEditorData(self, editor, index):
        pos = editor.findData(index.data().toInt()[0])
        if pos == -1: #text not found, set cell value to first item in VALUES
            pos = 0
        editor.setCurrentIndex(pos)

    def setModelData(self, editor, model, index):
        model.setData(index, QtCore.QVariant(editor.itemData(editor.currentInde x()))) # editor.currentIndex es la posición actual en el combobox; itemData recupera (por default) la data UserRole almacenada allí, que en este caso es el valor del foreign key

class myWindow(QtGui.QDialog):
    def __init__(self):
        QtGui.QDialog.__init__(self)
        DATA = [['First row', 1, 1], ['Second Row', 2, 2]]
        self.table = QtGui.QTableWidget(self)
        self.table.setSortingEnabled(False)
        self.table.setRowCount(len(DATA))
        self.table.setColumnCount(len(DATA[0]))
        self.table.setItemDelegateForColumn(1, MyRelationalDelegate(self))

        for row in range(len(DATA)):
            for col in range(len(DATA[row])):
                item = QtGui.QTableWidgetItem(str(DATA[row][col]))
                self.table.setItem(row, col, item)

        layout = QtGui.QVBoxLayout()
        layout.addWidget(self.table)
        self.setLayout(layout) 

if __name__ == "__main__":
    app = QtGui.QApplication(sys.argv)
    window = myWindow()
    window.show()
    app.exec_()

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Original Comment By: Will Hart

[will-hart]

Desktop software only

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Original Comment By: Will Hart