Added many features and did many fixes

[NeerajCodz]

I was asked to work on this project for as part for acm tasks and here are the changes I did

Refer CHANGELOG

🎉 Added

Undo/Redo Functionality

• Undo/Redo Support - Full undo/redo functionality with keyboard shortcuts
  • Ctrl+Z (or Cmd+Z on Mac): Undo last action
  • Ctrl+Y (or Cmd+Y on Mac): Redo action
  • Ctrl+Shift+Z: Alternative redo shortcut
  • Maintains history of up to 50 steps
  • Smart history tracking
• History Panel - Added popup to see previous 50 steps and go back to desired precise state back.
  • Descriptive action names instead of generic step numbers:
    • "Added AND", "Deleted OR", "Moved Input A"
    • "Created branch node", "Connected wires", "Disconnected wires"
    • "Imported Half Adder", "Renamed to Output Y"

Circuit Management Features

• Dynamic Circuit Routes - Clean URL structure for sharing and accessing circuits
  • /circuit - Create new empty circuit
  • /circuit/{id} - Direct link to specific saved circuit
  • Automatic verification and loading of circuit by ID
  • Better sharing with clean URLs instead of query parameters
• Custom labels - Added option for users to custom rename the inputs,outputs and logic gates feat: Adding labels to circuits #31
• Right Click Option - Added right click circuit option to
  • "Rename" -
  • "Copy"
  • "Duplicate" - with 50px offset positioning
  • "Delete" - Moved Delete to here
• Import Circuits - Users can import their own ciruits back to new circuit in one block.
• Dynamic Gate Sizing - Gate components automatically resize vertically based on input/output count
• Variable Input Count for Logic Gates - Logic gates (AND, OR, NAND, NOR, XOR, XNOR) can now have 2-8 inputs via right-click context menu
• Marquee selection - Holding control for marquee selection for copy paste

Wire Management & Branch Points

• Branch Point Creation - Double-click on any wire to create a branch point for signal splitting or create a branch node
• Wire Selection - Wires can now be selected by clicking directly on them and deleted with delete key

Dashboard

• Right click on categories or circuits
  • "Rename"
  • "Delete"

View Controls

• Fullscreen Mode Toggle - Added fullscreen mode button to maximize workspace area

🐛 Fixed

UI/UX Fixes

• Toolbar Dropdown Toggle - Logic Gates and other category dropdowns can now be closed by clicking the category name again

🔄 Changed

Interaction Model

• Panning & Selection Behavior - Refined canvas interaction model
  • Normal left-drag: Pan background
  • Control + drag on empty space: Box selection (marquee)
  • Control + drag on branch node: Reposition branch point
  • Middle/right mouse: Alternative panning methods

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👨‍💻 Author

Neeraj (@NeerajCodz)

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