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ADDED Requirements


Requirement: Image Drag-and-Drop Support

The system SHALL support drag-and-drop of image files directly into the reference image area.


Scenario: Drag files from file explorer


WHEN user drags image files from Windows Explorer/macOS Finder onto the reference image area

THEN the system shall highlight the drop zone with visual feedback

AND display a drag-over cursor

AND accept the drop when user releases mouse

AND add valid images to the uploaded images list

AND update the thumbnail preview display


Scenario: Drag images from web browser


WHEN user drags images from a web browser onto the reference image area

THEN the system shall process the dragged image files

AND validate image format and integrity

AND add valid images to the upload list

AND show success feedback to user


Scenario: Invalid drag content


WHEN user drags non-image files onto the reference image area

THEN the system shall reject the drag with visual feedback

AND display a forbidden cursor icon

AND not accept the drop operation

AND optionally show tooltip indicating only images are accepted


Requirement: Clipboard Image Paste Support

The system SHALL support pasting images from the system clipboard.


Scenario: Paste screenshot


WHEN user takes a screenshot (PrtScn or Win+Shift+S) and pastes into the application

THEN the system shall detect image data in clipboard

AND create a temporary image file

AND add the image to the uploaded images list

AND generate thumbnail preview


Scenario: Paste copied image


WHEN user copies an image from web browser or image viewer and pastes into the application

THEN the system shall extract image data from clipboard

AND validate the image format

AND process the image for temporary storage

AND update the UI to show the new image


Scenario: Paste without image in clipboard


WHEN user attempts to paste when no image is available in clipboard

THEN the system shall handle gracefully without error

AND optionally show notification that no image was found in clipboard


Scenario: Keyboard paste shortcut


WHEN user presses Ctrl+V (or Cmd+V on macOS) when the image area is focused

THEN the system shall process clipboard paste operation

AND follow the same validation and processing workflow as manual paste


MODIFIED Requirements


Requirement: Enhanced Image Upload Workflow

The system MUST provide multiple methods for adding reference images to support different user workflows.


Scenario: Multiple upload methods


WHEN user wants to add reference images

THEN they can choose from file dialog, drag-and-drop, or clipboard paste

AND all methods shall validate images using the same criteria

AND all methods shall update the same image list and preview display

AND users can mix different methods in the same session


Scenario: Consistent image validation


WHEN images are added through any upload method

THEN the system shall apply consistent validation rules

AND check file format, size, and integrity

AND provide consistent error messages for invalid files

AND maintain the same image quality standards


Scenario: Mixed input sources


WHEN user adds images using different methods in sequence

THEN the system shall maintain a unified image list

AND display all images in the same preview area

AND support deletion and management regardless of input source

AND preserve image order as added by user


Requirement: Enhanced Image Preview and Management

The image preview system MUST be enhanced to support the additional input methods while maintaining existing functionality.


Scenario: Visual feedback for operations


WHEN user performs drag-and-drop or paste operations

THEN the system shall provide clear visual feedback

AND show highlighting during drag operations

AND display success indicators for completed operations

AND provide error feedback for failed operations


Scenario: Thumbnail generation consistency


WHEN images are added through any method

THEN the system shall generate consistent thumbnails

AND use the same scaling and quality settings

AND maintain the same 100x100 pixel display size

AND preserve the same deletion and management interface


Scenario: Image count and status updates


WHEN images are added or removed through any method

THEN the image count label shall update immediately

AND reflect the total number of uploaded images

AND the UI shall remain responsive during operations

AND status messages shall indicate the result of operations