added basic about dialog and created codetext widget for displaying text in terminal like colors using scrolledtext widget

coretk/coretk/dialogs/about.py

@@ -0,0 +1,44 @@
+import tkinter as tk
+
+from coretk.dialogs.dialog import Dialog
+from coretk.widgets import CodeText
+
+LICENSE = """\
+Copyright (c) 2005-2020, the Boeing Company.
+
+Redistribution and use in source and binary forms, with or without
+modification, are permitted provided that the following conditions are met:
+
+1. Redistributions of source code must retain the above copyright notice,
+   this list of conditions and the following disclaimer.
+2. Redistributions in binary form must reproduce the above copyright notice,
+   this list of conditions and the following disclaimer in the documentation
+   and/or other materials provided with the distribution.
+
+THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
+AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
+IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
+ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
+LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
+CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
+SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
+INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
+CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
+ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF
+THE POSSIBILITY OF SUCH DAMAGE.\
+"""
+
+
+class AboutDialog(Dialog):
+    def __init__(self, master, app):
+        super().__init__(master, app, "About CORE", modal=True)
+        self.draw()
+
+    def draw(self):
+        self.top.columnconfigure(0, weight=1)
+        self.top.rowconfigure(0, weight=1)
+
+        text = CodeText(self.top)
+        text.insert("1.0", LICENSE)
+        text.config(state=tk.DISABLED)
+        text.grid(sticky="nsew")

coretk/coretk/dialogs/hooks.py

@@ -3,6 +3,7 @@ from tkinter import ttk
 
 from core.api.grpc import core_pb2
 from coretk.dialogs.dialog import Dialog
+from coretk.widgets import CodeText
 
 
 class HookDialog(Dialog):
@@ -43,7 +44,7 @@ class HookDialog(Dialog):
         frame.columnconfigure(0, weight=1)
         frame.rowconfigure(0, weight=1)
         frame.grid(row=1, sticky="nsew", pady=2)
-        self.data = tk.Text(frame)
+        self.data = CodeText(frame)
         self.data.insert(
             1.0,
             (

coretk/coretk/dialogs/serviceconfiguration.py

@@ -2,12 +2,11 @@
 import logging
 import tkinter as tk
 from tkinter import ttk
-from tkinter.scrolledtext import ScrolledText
 
 from core.api.grpc import core_pb2
 from coretk.dialogs.dialog import Dialog
 from coretk.images import ImageEnum, Images
-from coretk.widgets import ListboxScroll
+from coretk.widgets import CodeText, ListboxScroll
 
 
 class ServiceConfiguration(Dialog):
@@ -182,7 +181,7 @@ class ServiceConfiguration(Dialog):
         button.grid(row=0, column=2)
         frame.grid(row=3, column=0, sticky="nsew")
 
-        self.service_file_data = ScrolledText(tab1)
+        self.service_file_data = CodeText(tab1)
         self.service_file_data.grid(row=4, column=0, sticky="nsew")
         if len(self.filenames) > 0:
             self.filename_combobox.current(0)

coretk/coretk/menuaction.py

@@ -12,6 +12,7 @@ import grpc
 
 from core.api.grpc import core_pb2
 from coretk.appconfig import XML_PATH
+from coretk.dialogs.about import AboutDialog
 from coretk.dialogs.canvasbackground import CanvasBackgroundDialog
 from coretk.dialogs.canvassizeandscale import SizeAndScaleDialog
 from coretk.dialogs.hooks import HooksDialog
@@ -151,3 +152,7 @@ class MenuAction:
     def edit_observer_widgets(self):
         dialog = ObserverDialog(self.app, self.app)
         dialog.show()
+
+    def show_about(self):
+        dialog = AboutDialog(self.app, self.app)
+        dialog.show()

coretk/coretk/menubar.py

@@ -462,5 +462,5 @@ class Menubar(tk.Menu):
             label="Core Documentation (www)",
             command=self.menuaction.help_core_documentation,
         )
-        menu.add_command(label="About", state=tk.DISABLED)
+        menu.add_command(label="About", command=self.menuaction.show_about)
         self.add_cascade(label="Help", menu=menu)

coretk/coretk/widgets.py

@@ -1,7 +1,8 @@
 import logging
 import tkinter as tk
 from functools import partial
-from tkinter import ttk
+from tkinter import font, ttk
+from tkinter.scrolledtext import ScrolledText
 
 from core.api.grpc import core_pb2
 
@@ -155,3 +156,26 @@ class CheckboxList(FrameScroll):
         func = partial(self.clicked, name, var)
         checkbox = ttk.Checkbutton(self.frame, text=name, variable=var, command=func)
         checkbox.grid(sticky="w")
+
+
+class CodeFont(font.Font):
+    def __init__(self):
+        super().__init__(font="TkFixedFont", color="green")
+
+
+class CodeText(ScrolledText):
+    def __init__(self, master, **kwargs):
+        super().__init__(
+            master,
+            bd=0,
+            bg="black",
+            cursor="xterm lime lime",
+            fg="lime",
+            font=CodeFont(),
+            highlightbackground="black",
+            insertbackground="lime",
+            selectbackground="lime",
+            selectforeground="black",
+            relief=tk.FLAT,
+            **kwargs
+        )