% Copyright 2026 Open-Guji (https://github.com/open-guji)
%
% Licensed under the Apache License, Version 2.0 (the "License");
% you may not use this file except in compliance with the License.
% You may obtain a copy of the License at
%
%     http://www.apache.org/licenses/LICENSE-2.0
%
% Unless required by applicable law or agreed to in writing, software
% distributed under the License is distributed on an "AS IS" BASIS,
% WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
% See the License for the specific language governing permissions and
% limitations under the License.

% luatex-cn-guji-default.cfg
% Default configuration for guji (古籍 Ancient Chinese Book)
% Black and white version of Siku Quanshu layout

% =============================================================================
% Grid Calculation (same as SiKuQuanShu, derived from page geometry)
% =============================================================================
%
% Page dimensions:
%   paper-width = 1136pt (40cm), paper-height = 894.6pt (31.5cm)
%   margin: top=190.5pt (6.72cm), bottom=91.6pt (3.23cm),
%           left=133.2pt (4.7cm), right=133.2pt (4.7cm)
%
% Raw content area:
%   content-width  = 1136 - 133.2 - 133.2 = 869.6pt
%   content-height = 894.6 - 190.5 - 91.6 = 612.5pt
%
% Border parameters:
%   outer-border-thickness = 2pt
%   outer-border-sep = 2pt
%   border-thickness = 0.4pt
%   border-padding-top = 2.8pt
%   border-padding-bottom = 2.8pt
%
% Width calculation:
%   Both sides outer border: 2 × (2pt + 2pt) = 8pt
%   Inner border thickness: 0.4pt
%   Available for grids: 869.6 - 8 - 0.4 = 861.2pt
%   grid-width = 861.2 / 17 ≈ 50.66pt
%
% Height calculation:
%   Both sides outer border: 2 × (2pt + 2pt) = 8pt
%   Inner border thickness: 0.4pt
%   Padding: 2.8pt × 2 = 5.6pt
%   Available for grids: 612.5 - 8 - 0.4 - 5.6 = 598.5pt
%   grid-height = 598.5 / 21 ≈ 28.5pt
%
% Column height (internal content area used by Lua):
%   height = 21 × grid-height = 21 × 28.5 ≈ 598.5pt
%
% =============================================================================

\gujiSetup{
    % ==========================================================================
    % Page Geometry (Same as Siku Quanshu - Spread)
    % ==========================================================================
    paper-width = 1136pt,    % 40cm
    paper-height = 894.6pt,  % 31.5cm
    margin-top = 190.5pt,    % 6.72cm
    margin-bottom = 91.6pt,  % 3.23cm
    margin-left = 133.2pt,   % 4.7cm
    margin-right = 133.2pt,  % 4.7cm
    
    % ==========================================================================
    % Border Configuration (Black and White)
    % ==========================================================================
    border = true,
    outer-border = true,
    % Inner column border thickness
    border-thickness = 0.4pt,
    % Outer frame border thickness
    outer-border-thickness = 4pt,
    % Gap between outer border and inner content
    outer-border-sep = 3pt,
    % Padding inside column border (top and bottom)
    border-padding-top = 5pt,
    border-padding-bottom = 5pt,
    
    % ==========================================================================
    % Grid Configuration (17 cols x 21 chars)
    % ==========================================================================
    % Number of columns per half page (excluding Banxin center column)
    n-column = 8,
    % Number of characters per column (grid-height and height are auto-calculated)
    n-char = 21,
    % Grid width is still manual (depends on page width and column count)
    % Calculated: (content-width - outer-border-overhead - inner-border) / 17
    grid-width = 50.66pt,
    
    % ==========================================================================
    % Banxin (版心) Configuration
    % ==========================================================================
    % Section ratios based on measurements: 65.8mm / 131.2mm / 36.2mm
    % Total: 65.8 + 131.2 + 36.2 = 233.2mm
    banxin-upper-ratio = 0.282,  % 65.8 / 233.2
    banxin-middle-ratio = 0.563,  % 131.2 / 233.2

    chapter-title-top-margin = 50pt,
    chapter-title-font-size = 15pt,
    chapter-title-grid-height = 55pt,
    lower-yuwei = false,
    
    % ==========================================================================
    % Typography
    % ==========================================================================
    font-size = 28pt,
    line-spacing = 28.5pt,
    % Font settings are optional - users can load fontspec and set fonts in their document
    % Example in your .tex file:
    %   \usepackage{fontspec}
    %   \setmainfont{JiGu}[RawFeature={+vert,+vrt2}, CharacterWidth=Full]
    % If not specified, LuaTeX will use the default font
    vertical-align = center,

    % Jiazhu (dual-column notes) alignment
    % Options: outward (default), inward, center, left, right
    jiazhu-align = outward,

    % ==========================================================================
    % Colors (Black and White)
    % ==========================================================================
    border-color = {0, 0, 0},
    font-color = {0, 0, 0}
}


\endinput