DiffStyles.fromColors constructor

DiffStyles.fromColors({ required Color success, required Color error, required Color muted, required Color surface, required Color onSurface, required Color onBackground, required Color border, bool hasDarkBackground = true, Color? successBg, Color? errorBg, Color? inlineAddedBg, Color? inlineRemovedBg, })

Creates diff styles from semantic colors.

Maps semantic color slots (success/error/muted/surface/onSurface/border) to the appropriate diff styles. This enables theme-driven styling without coupling to a specific theme class.

• success — color for added lines (foreground).
• error — color for removed lines (foreground).
• muted — color for line numbers, context gutter, separators.
• surface — background for panels (used for empty cells in side-by-side mode).
• onSurface — text color on surface backgrounds (file headers).
• onBackground — text color on main background (context lines).
• border — border/separator color.
• successBg — subtle background for added lines (optional).
• errorBg — subtle background for removed lines (optional).

Implementation

factory DiffStyles.fromColors({
  required Color success,
  required Color error,
  required Color muted,
  required Color surface,
  required Color onSurface,
  required Color onBackground,
  required Color border,
  bool hasDarkBackground = true,
  Color? successBg,
  Color? errorBg,
  Color? inlineAddedBg,
  Color? inlineRemovedBg,
}) {
  final addedBg = successBg ?? const BasicColor('#1a2e1a');
  final removedBg = errorBg ?? const BasicColor('#2e1a1a');

  return DiffStyles(
    // Unified mode
    addedLine: _bgAware(Style().foreground(success), hasDarkBackground),
    removedLine: _bgAware(Style().foreground(error), hasDarkBackground),
    contextLine: _bgAware(
      Style().foreground(onBackground),
      hasDarkBackground,
    ),
    fileHeader: _bgAware(
      Style().bold().foreground(onSurface),
      hasDarkBackground,
    ),
    hunkHeader: _bgAware(Style().foreground(muted), hasDarkBackground),
    addedGutter: _bgAware(
      Style().foreground(success).bold(),
      hasDarkBackground,
    ),
    removedGutter: _bgAware(
      Style().foreground(error).bold(),
      hasDarkBackground,
    ),
    contextGutter: _bgAware(Style().foreground(muted), hasDarkBackground),
    lineNumber: _bgAware(Style().foreground(muted), hasDarkBackground),
    // Pretty mode
    prettyAddedLine: _bgAware(
      Style().foreground(success).background(addedBg),
      hasDarkBackground,
    ),
    prettyRemovedLine: _bgAware(
      Style().foreground(error).background(removedBg),
      hasDarkBackground,
    ),
    prettyContextLine: _bgAware(
      Style().foreground(onBackground),
      hasDarkBackground,
    ),
    prettyFileHeader: _bgAware(Style().foreground(muted), hasDarkBackground),
    prettyAddedLineNumber: _bgAware(
      Style().foreground(success).background(addedBg),
      hasDarkBackground,
    ),
    prettyRemovedLineNumber: _bgAware(
      Style().foreground(error).background(removedBg),
      hasDarkBackground,
    ),
    prettyContextLineNumber: _bgAware(
      Style().foreground(muted),
      hasDarkBackground,
    ),
    // Side-by-side mode
    sideBySideSeparator: _bgAware(
      Style().foreground(border),
      hasDarkBackground,
    ),
    sideBySideAddedLine: _bgAware(
      Style().foreground(success).background(addedBg),
      hasDarkBackground,
    ),
    sideBySideRemovedLine: _bgAware(
      Style().foreground(error).background(removedBg),
      hasDarkBackground,
    ),
    sideBySideContextLine: _bgAware(
      Style().foreground(onBackground),
      hasDarkBackground,
    ),
    sideBySideLineNumber: _bgAware(
      Style().foreground(muted),
      hasDarkBackground,
    ),
    sideBySideEmptyCell: _bgAware(
      Style().foreground(surface),
      hasDarkBackground,
    ),
    sideBySideAddedMarker: _bgAware(
      Style().foreground(success),
      hasDarkBackground,
    ),
    sideBySideRemovedMarker: _bgAware(
      Style().foreground(error),
      hasDarkBackground,
    ),
    sideBySideContextMarker: _bgAware(
      Style().foreground(muted),
      hasDarkBackground,
    ),
    // Inline diff highlighting
    inlineAddedHighlight: _bgAware(
      Style().background(inlineAddedBg ?? const BasicColor('#2a4a2a')),
      hasDarkBackground,
    ),
    inlineRemovedHighlight: _bgAware(
      Style().background(inlineRemovedBg ?? const BasicColor('#4a2a2a')),
      hasDarkBackground,
    ),
    selectedCommentLine: _bgAware(
      Style().background(
        AdaptiveColor(
          dark: const BasicColor('#2f3f5f'),
          light: const BasicColor('#bfd7ff'),
        ),
      ),
      hasDarkBackground,
    ),
    selectedCommentGutter: _bgAware(
      Style().background(
        AdaptiveColor(
          dark: const BasicColor('#50668f'),
          light: const BasicColor('#9dbcf8'),
        ),
      ),
      hasDarkBackground,
    ),
    commentRangeLine: _bgAware(
      Style().background(
        AdaptiveColor(
          dark: const BasicColor('#263847'),
          light: const BasicColor('#d6e8ff'),
        ),
      ),
      hasDarkBackground,
    ),
    commentRangeGutter: _bgAware(
      Style().background(
        AdaptiveColor(
          dark: const BasicColor('#3f6374'),
          light: const BasicColor('#b8d7ff'),
        ),
      ),
      hasDarkBackground,
    ),
    commentThreadLine: _bgAware(
      Style().background(
        AdaptiveColor(
          dark: const BasicColor('#5d4037'),
          light: const BasicColor('#ffeb3b'),
        ),
      ),
      hasDarkBackground,
    ),
    commentThreadGutter: _bgAware(
      Style().background(
        AdaptiveColor(
          dark: const BasicColor('#8d6e63'),
          light: const BasicColor('#fbc02d'),
        ),
      ),
      hasDarkBackground,
    ),
  );
}