feat: added gui for the computer algebra app using dearpygui

Author: ca20110820

projects/computer-algebra/main.py

@@ -0,0 +1,109 @@
+from newton_command import NEWTON_CMDS_DICT
+
+import dearpygui.dearpygui as dpg
+
+
+def selection_cb(sender, app_data, user_data):
+    if user_data[1]:
+        print("User selected 'Ok'")
+    else:
+        print("User selected 'Cancel'")
+
+    # delete window
+    dpg.delete_item(user_data[0])
+
+
+def show_info(title, message, selection_callback):
+    # Reference: https://github.com/hoffstadt/DearPyGui/discussions/1002
+
+    # guarantee these commands happen in the same frame
+    with dpg.mutex():
+        viewport_width = dpg.get_viewport_client_width()
+        viewport_height = dpg.get_viewport_client_height()
+
+        with dpg.window(tag='popup-window', label=title, modal=True, no_close=True) as modal_id:
+            dpg.add_text(message)
+            dpg.add_button(label="Ok", width=75, user_data=(modal_id, True), callback=selection_callback)
+            dpg.add_same_line()
+            dpg.add_button(label="Cancel", width=75, user_data=(modal_id, False), callback=selection_callback)
+
+    # guarantee these commands happen in another frame
+    dpg.split_frame()
+    width = dpg.get_item_width(modal_id)
+    height = dpg.get_item_height(modal_id)
+    dpg.set_item_pos(modal_id, [viewport_width // 2 - width // 2, viewport_height // 2 - height // 2])
+
+
+# Callbacks and Helpers
+def on_evaluate(sender, app_data, user_data):
+    # Get the Command
+    cmd = dpg.get_value('radio-cmds')
+    cmd_func = NEWTON_CMDS_DICT[cmd]
+
+    # Get the Expression
+    expr = dpg.get_value('inp-expr')
+
+    if expr.strip() in ['']:
+        show_info(
+            'Error',
+            'Please use valid mathematical expressions.',
+            selection_cb
+        )
+        # Clear Expression
+        dpg.set_value('inp-expr', '')
+        return
+
+    # Evaluate
+    response = cmd_func(expr)
+    result = response.result
+
+    dpg.set_value('label-output', result)
+
+
+dpg.create_context()
+dpg.create_viewport(title='Computer Algebra', width=1300, height=750)
+
+with dpg.window(tag='inp-window',
+                label="Input",
+                pos=[0, 0],
+                autosize=True,
+                # width=1150,
+                # height=350,
+                no_collapse=True,
+                no_close=True,
+                ):
+    # Radio Button for Commands
+    dpg.add_radio_button(
+        horizontal=True,
+        tag='radio-cmds',
+        items=[cmd for cmd in NEWTON_CMDS_DICT.keys()]
+    )
+
+    # Text Area for Mathematical Expression
+    dpg.add_input_text(
+        tag='inp-expr', 
+        width=int(1150 * 0.8),
+    )
+
+    # Button for Evaluating Command and Expression
+    dpg.add_button(label="Evaluate", callback=on_evaluate)
+
+with dpg.window(tag='out-window', 
+                pos=[0, 100],
+                label="Output",
+                # width=700,
+                # height=350,
+                autosize=True,
+                no_collapse=True,
+                no_close=True,
+                ):
+    # Use Label for Output
+    dpg.add_text(tag='label-output',
+                 label='Result',
+                 show_label=True,
+                 )
+
+dpg.setup_dearpygui()
+dpg.show_viewport()
+dpg.start_dearpygui()
+dpg.destroy_context()

projects/computer-algebra/newton_command.py

@@ -74,3 +74,21 @@ def command(self, expr: str) -> NewtonResponse:
 newton_arc_tan = NewtonCommand('arctan').command
 newton_abs = NewtonCommand('abs').command
 newton_log = NewtonCommand('log').command
+
+NEWTON_CMDS_DICT = {
+    'simplify': newton_simplify,
+    'factor': newton_factor,
+    'derive': newton_derive,
+    'integrate': newton_integrate,
+    'zeroes': newton_zeroes,
+    'tangent': newton_tangent,
+    'area': newton_area,
+    'cos': newton_cos,
+    'sin': newton_sin,
+    'tan': newton_tan,
+    'arccos': newton_arc_cos,
+    'arcsin': newton_arc_sin,
+    'arctan': newton_arc_tan,
+    'abs': newton_abs,
+    'log': newton_log
+}

projects/computer-algebra/requirements.txt

@@ -1,2 +1,2 @@
 requests==2.31.0
-beautifulsoup4==4.12.3
+dearpygui==1.11.1