Spec: LoginWindow Cross-Platform Frame Compatibility

Overview

Specification for ensuring LoginWindow uses cross-platform compatible frame widgets that render correctly on macOS, Windows, and Linux.

MODIFIED Requirements

Requirement: Frame Widget Platform Compatibility

ID: login-frame-001

The LoginWindow MUST use classic tk.Frame widgets instead of ttk.Frame widgets to ensure reliable rendering across all platforms, particularly macOS. All Frame widgets SHALL have explicit background color configuration.

Scenario: main_frame renders correctly on macOS

Given the LoginWindow is displayed on macOS When the main_frame is created and rendered Then the frame SHALL use tk.Frame (not ttk.Frame) And the frame SHALL have background='white' explicitly set And the frame SHALL use padx=40 and pady=40 for padding And all content within the frame SHALL be visible

Scenario: nested frames render with white background

Given the LoginWindow contains username_frame, password_frame, and checkbox_frame When these frames are created and rendered Then all SHALL use tk.Frame (not ttk.Frame) And all SHALL have bg='white' explicitly set And all SHALL render correctly on macOS, Windows, and Linux

Scenario: classic tk widgets replace ttk widgets

Given the LoginWindow previously used ttk.Frame widgets When the widgets are replaced with tk.Frame widgets Then ttk.Frame SHALL NOT be used for any frame in LoginWindow And tk.Frame SHALL be used with explicit bg='white' parameter And the visual appearance SHALL remain consistent with design intentions

Requirement: Button Widget Styling Preservation

ID: login-frame-002

The LoginWindow login button MUST continue to use ttk.Button to maintain styled appearance, as ttk.Button has proven cross-platform compatibility for button widgets.

Scenario: login button remains ttk.Button

Given the LoginWindow frames are converted from ttk.Frame to tk.Frame When the login button is rendered Then the button SHALL continue to use ttk.Button And the button SHALL use the 'Login.TButton' style And the button SHALL render correctly on all platforms And the button styling SHALL remain unchanged from previous implementation

Requirement: Explicit Background Color Configuration

ID: login-frame-003

All tk.Frame widgets in LoginWindow MUST have explicit background color configuration to prevent rendering issues. The background color SHALL be white (#ffffff) to match the design.

Scenario: all frames have explicit bg parameter

Given any tk.Frame widget in LoginWindow Then the widget constructor SHALL include bg='white' parameter And the background SHALL render as white on all platforms And no frame SHALL rely on default or inherited background colors

Scenario: padding configuration uses Frame parameters

Given the main_frame requires 40px padding When the tk.Frame is created Then padding SHALL be specified using padx=40 and pady=40 parameters And ttk-style padding parameter SHALL NOT be used And the padding SHALL render consistently across platforms

ADDED Requirements

None - this modifies existing frame implementation

REMOVED Requirements

None - no requirements removed, only implementation approach changed