fix: UI for the app bar and optimized filter selection logic

[Vishveshwara]

Updated UI for the Appbar

Fixes #42
Fixes #52

Previous UI:

Updated UI

Summary by Sourcery

Revise the UI of the app bar in the image editor to use a flexibleSpace layout with centered title and action buttons, and update the empty-state prompt in the image list for clearer user guidance.

Enhancements:

• Revamp ImageEditor AppBar to replace title/actions with a SafeArea flexibleSpace containing a centered header and Import/Open buttons, increase toolbar height, and update typography and button styles.
• Enhance ImageList empty state message to prompt importing or opening the editor and adjust its font size and weight.

[sourcery-ai]

Reviewer's Guide

Refactored the AppBar in ImageEditor to replace the default title/actions with a flexibleSpace-based layout featuring a centered title and two buttons, adjusted toolbar dimensions and styling, and updated the empty-state prompt text and style in the image list widget.

File-Level Changes

Change	Details	Files
Refactor AppBar layout to use flexibleSpace with custom centered content	Removed title and actions properties Set toolbarHeight to 100 Added flexibleSpace with SafeArea → Stack → Center → Column structure Moved ‘Select Your Filter’ text and buttons into the new layout	lib/view/image_editor.dart
Adjust text and button styling in the new AppBar layout	Increased title fontSize to 20 and weight to w600 Added 6px vertical spacing between title and buttons Configured TextButton minimumSize (100×36), padding (14×8), border radius, and fontSize 14 with weight w600	lib/view/image_editor.dart
Update empty-state prompt and typography in image list widget	Changed message to include 'open the editor' instruction Reduced fontSize from 16 to 13 and weight from w500 to w400	lib/view/widget/image_list.dart

Possibly linked issues

• #0: The PR refactors and updates the AppBar layout in the image editor (filter) screen to fix the UI issue shown in the issue.

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[Vishveshwara]

@AsCress @kienvo Does this look good? do you guys have any suggestions?

[sourcery-ai]

Hey @Vishveshwara - I've reviewed your changes - here's some feedback:

• Consider extracting the repeated TextButton style into a shared widget or helper method to reduce duplication.
• Since your flexibleSpace only has a single centered Column, you can simplify the layout by dropping the Stack wrapper.
• The AppBar uses a hardcoded toolbarHeight of 100; consider using theme-based or responsive sizing to maintain consistency across devices.

Here's what I looked at during the review

• 🟡 General issues: 2 issues found
• 🟢 Security: all looks good
• 🟢 Testing: all looks good
• 🟢 Documentation: all looks good

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[sourcery-ai]

suggestion: Duplicate TextButton styles

Extract the shared style into a variable or custom widget to avoid duplication.

Suggested implementation:

        toolbarHeight: 100,
        title: null,
        actions: const [],
        flexibleSpace: SafeArea(
          child: Stack(
            children: [
              Center(
                child: Column(

            // Place this at the top of your widget/class/file, outside of build:
            final ButtonStyle sharedTextButtonStyle = TextButton.styleFrom(
              backgroundColor: Colors.white.withOpacity(0.2),
              foregroundColor: Colors.white,
            );

            // ...then, wherever you use the TextButton:
            padding: const EdgeInsets.symmetric(horizontal: 16.0, vertical: 8.0),
            child: TextButton(
              style: sharedTextButtonStyle,

• Replace all other duplicated TextButton.styleFrom(...) usages in this file with sharedTextButtonStyle.
• If the shared style needs to be accessed in multiple widgets, consider moving it to a separate file or making it a static member of a relevant class.
• Adjust the placement of the sharedTextButtonStyle variable as needed to ensure it is in scope for all usages.

[sourcery-ai]

nitpick (performance): Make TextStyle const

Using const here allows for compile-time optimization since TextStyle is immutable.

[Vishveshwara]

@Dhruv1797 is this UI good? do you have any suggestions?

[Dhruv1797]

The app bar is much better now, showing the complete screen name along with the "Import Image" and "Open Editor" buttons. No suggestions from my side right now. Nice work! 👌
@AsCress @kienvo do you guys have any suggestions ? please review it once.

[AsCress]

@kienvo Looks good to me.

[kienvo]

Better use icons.

[Vishveshwara]

@kienvo @AsCress does this look good?

[Vishveshwara]

Updated UI @kienvo @Dhruv1797 @AsCress

updated.UI.mp4

[Vishveshwara]

Fixes #52
converted image_list.dart to a stateless widget and optimized the selection logic

selection.logic.fix.mp4