wincalc_engine 0.0.5

Dart FFI bindings to the Windows Calculator engine, providing standard, scientific, and programmer calculator functionality.

0.0.5

Fixed

• Temperature Unit Identity Conversion Bug
  • Added missing identity conversions for temperature units (Celsius→Celsius, Fahrenheit→Fahrenheit, Kelvin→Kelvin)
  • Previously, converting between the same temperature unit would produce incorrect results (e.g., 25°C → 0.015534 instead of 25°C)
  • Now correctly returns the same value when source and target units are identical
  • Example: 100°C now correctly converts to 100°C, 77°F to 77°F, 298K to 298K

0.0.4

Added

Unit Converter Suggested Values Feature

• New API: Suggested Values
  • unit_converter_get_suggested_count() - Get the count of suggested conversion values
  • unit_converter_get_suggested_value() - Get individual suggested value with unit name
  • Suggested values include both common units (cups, pints, ounces) and whimsical units (coffee cups, bathtubs, swimming pools)
  • Example: When converting 1 Liter, returns suggestions like "4.23 US cups", "2.11 US pints", "☕ 4.23 Metric cups"

Fixed

• Unit Name Display Bug
  • Fixed addRatio() function to use complete Unit objects instead of empty ones
  • Added m_unitById mapping to store complete unit information (id, name, abbreviation)
  • Previously suggested values showed numeric values but had empty unit names
  • Now correctly displays: "4.23 Metric cups" instead of "4.23 "

Changed

• Enhanced Unit Converter Data Loader
  • Internal refactor to properly maintain Unit object references
  • Improved conversion ratio mapping with complete Unit metadata

0.0.3

Fixed

• Memory Clear Display Update Issue
  • Fixed calculator_memory_clear_at() not updating the display layer when clearing a memorized number

0.0.2

Added

Programmer Mode Bitwise Operation Features

• New Enum: CalcWordType

  • Added word size type enumeration for programmer mode
  • Supports QWORD (64-bit), DWORD (32-bit), WORD (16-bit), and BYTE (8-bit)
  • Includes fromValue() method for safe enum conversion

• Word Width Management Functions

  • calculator_set_word_width() - Set the current word size for programmer mode
  • calculator_get_word_width() - Get the current word size setting
  • Word width commands (CMD_QWORD, CMD_DWORD, CMD_WORD, CMD_BYTE) now properly tracked

• Carry Flag Management Functions

  • calculator_set_carry_flag() - Set the carry flag for rotate-through-carry operations
  • calculator_get_carry_flag() - Get the current carry flag value
  • Carry flag is automatically clamped to 0 or 1

• Enhanced Bitwise Operations

  • All bitwise operations (AND, OR, XOR, NOT, NAND, NOR) are available via calculator_send_command()
  • Bit shift operations: Left Shift (LSH), Right Shift (RSH), Logical Right Shift (RSHL)
  • Rotate operations: Rotate Left (ROL), Rotate Right (ROR)
  • Rotate-through-carry: ROLC, RORC

• Radix Display Functions

  • calculator_get_result_hex() - Get result in hexadecimal format
  • calculator_get_result_dec() - Get result in decimal format
  • calculator_get_result_oct() - Get result in octal format
  • calculator_get_result_bin() - Get result in binary format
  • calculator_get_binary_display() - Get 64-bit binary representation for bit panel

• Bit Position Commands

  • CMD_BINPOS(n) - Toggle bit at position n (0-63) for direct bit manipulation

Changed

• Enhanced calculator_send_command()
  • Now properly tracks word width changes when sending CMD_QWORD, CMD_DWORD, CMD_WORD, or CMD_BYTE commands
  • Improved state synchronization between wrapper and native engine

0.0.1

• Initial version.