Sha256: 2f143ca9a34a6636d1c209aff9482700e2b49cd889cda4c4d4709d33659e35d5
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Versions: 24
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Contents
# encoding: ascii-8bit
# Copyright 2014 Ball Aerospace & Technologies Corp.
# All Rights Reserved.
#
# This program is free software; you can modify and/or redistribute it
# under the terms of the GNU General Public License
# as published by the Free Software Foundation; version 3 with
# attribution addendums as found in the LICENSE.txt
# This file contains the implementation of the BackgroundbuttonWidget class.
require 'cosmos'
require 'cosmos/tools/tlm_viewer/widgets/widget'
require 'cosmos/gui/utilities/script_module_gui'
module Cosmos
# Run user defined code in the background. This means that all code which
# interacts with the GUI MUST be wrapped in Qt.execute_in_main_thread.
class BackgroundbuttonWidget < Qt::PushButton
include Widget
def initialize(parent_layout, button_text, string_to_eval)
super()
setText(button_text.to_s)
connect(SIGNAL('clicked()')) { execute(string_to_eval.to_s) }
parent_layout.addWidget(self) if parent_layout
end
def execute(code)
# Disable the button while the code is executed to avoid thrashing
setEnabled(false)
# Spawn a new thread to avoid blocking the GUI.
Thread.new do
begin
@screen.instance_eval(code)
rescue DRb::DRbConnError
Qt.execute_in_main_thread do
Qt::MessageBox.warning(parent.parentWidget, 'Error', "Error Connecting to Command and Telemetry Server")
end
rescue Exception => error
message = error.message
if error.message.include?("Qt methods cannot be called")
message = "Error executing button code:\n#{code}\n\nYou must wrap calls to the GUI in Qt.execute_in_main_thread { <GUI Code> }"
end
Qt.execute_in_main_thread do
Qt::MessageBox.warning(parent.parentWidget, 'Error', "#{error.class} : #{message}")
end
end
Qt.execute_in_main_thread { self.setEnabled(true) }
end
end
end
end
Version data entries
24 entries across 24 versions & 1 rubygems