flynx / photobook Goto Github PK

\documentclass[%
	layoutmode=block,
	blockwidth=20cm,
	blockheight=20cm,
	imageblockwidth=1.0,
	imageblockheight=1.0,
	bleed=10mm,
	final
]{photobook}

% Remove page numbering
\usepackage{nopageno}

% A font I like
\usepackage{palatino}

%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
% The following should eventually be moved into a package

% Dependencies
\usepackage{tikz}
\usepackage{pgfmath}
\usepackage[strict]{changepage}
\usepackage{ifdraft}

% Helper command to convert a value from points to the given unit.
\makeatletter
\def\convertto#1#2{\strip@pt\dimexpr #2*65536/\number\dimexpr 1#1}
\makeatother

% Print the given length, in cm.
\newcommand{\printcm}[1]{\convertto{cm}{\the#1}cm}

% Create a white box that shows the size (in cm) of the cell it box belongs to.
% This is meant for debugging purposes.
\newcommand{\cellsizebox}{\begin{tikzpicture}\node[draw,minimum width=\cellwidth,minimum height=\cellheight] at (0,0) {\shortstack{W: \printcm{\cellwidth}\\ H: \printcm{\cellheight}}};\end{tikzpicture}}

% Some lengths that I need inside the main macro.
\newlength{\CollageOffset}
\setlength{\CollageOffset}{\bleed}
\newlength{\CollageOuterMargin}
\newlength{\CollageImageSpacing}
\newlength{\CollageFirstWidth}
\newlength{\CollageSecondWidth}
\newlength{\CollageFirstHeight}
\newlength{\CollageSecondHeight}

% Main command: create a collage with four pictures of variable size.
% Usage:
%   \CollageTwo{outer_margin}{outer_margin}{width_ratio}{height_ratio}{img1}{img2}{img3}{img4}
% 
% Creates a collage with four pictures like this one:
%
%   =-----------------------------------+
%   = . . . . . . . . . . . . . . . . . |
%   =                                 . |
%   =                                 . |
%   =    +------+   +------------+    . |
%   =    | img1 |   |    img2    |    . |
%   =    +------+   +------------+    . |
%   =                                 . |
%   =    +------+   +------------+    . |
%   =    |      |   |            |    . |
%   =    | img3 |   |    img4    |    . |
%   =    |      |   |            |    . |
%   =    +------+   +------------+    . |
%   =                                 . |
%   =                                 . |
%   = . . . . . . . . . . . . . . . . . |
%   =-----------------------------------+
%
% In the image above, the outer frame represents the visible page in the
% produced pdf. The dotted frame is obtained by "shrinking" the page size by
% "\bleed" from all sides, except the gutter. The dotted frame is then shurk,
% this time in all four directions, by a margin equal to "outer_margin". The
% distance between all images is determined by outer_margin. Finally, the size
% of each image is calculated as follows. The remaining horizontal and vertical
% space for the images  are respectively:
%   W = page_width - bleed - 2*outer_margin - image_spacing
%   H = page_width - 2*bleed - 2*outer_margin - image_spacing
% The sizes of the images are then calculated as:
%   img1:     width_ratio*W ;     height_ratio*H
%   img2: (1-width_ratio)*W ; (1-height_ratio)*H
%   img3:     width_ratio*W ;     height_ratio*H
%   img4: (1-width_ratio)*W ; (1-height_ratio)*H
%
% TODO: allow to set the image fill-type (fit, fill, etc?)
% TODO: key-value pairs with defaults (at least for the ratios!)
% TODO: change name!
\newcommand{\CollageTwo}[8]{%
	\begin{page}%
		% Give a name to the first two parameters of the macro.
		\setlength{\CollageOuterMargin}{#1}%
		\setlength{\CollageImageSpacing}{#2}%
		%
		% Calculate the size of each image using pgfmath.
		\pgfmathparse{(\blockwidth - \bleed - 2\CollageOuterMargin - \CollageImageSpacing) * #3}%
		\setlength{\CollageFirstWidth}{\pgfmathresult pt}%
		\pgfmathparse{(\blockwidth - \bleed - 2\CollageOuterMargin - \CollageImageSpacing) * (1-#3)}%
		\setlength{\CollageSecondWidth}{\pgfmathresult pt}%
		\pgfmathparse{(\blockheight - 2\bleed - 2\CollageOuterMargin - \CollageImageSpacing) * (#4)}%
		\setlength{\CollageFirstHeight}{\pgfmathresult pt}%
		\pgfmathparse{(\blockheight - 2\bleed - 2\CollageOuterMargin - \CollageImageSpacing) * (1-#4)}%
		\setlength{\CollageSecondHeight}{\pgfmathresult pt}%
		%
		% Calculate the coordinates of the origins. Make sure to properly handle
		% even and odd pages.
		\checkoddpage%
		\def\collageX{\ifoddpage\else\bleed+\fi \CollageOffset+\CollageOuterMargin}%
		\def\collageY{\CollageOffset+\bleed+\CollageOuterMargin}%
		\def\collageXX{\collageX+\CollageFirstWidth+\CollageImageSpacing}%
		\def\collageYY{\collageY+\CollageFirstHeight+\CollageImageSpacing}%
		%
		% Place the images if in final mode, or a box with the content size in
		% cm, if in draft mode.
		\begin{cell}{\collageX,\collageY}{\CollageFirstWidth}{\CollageFirstHeight}%
			\ifdraft{\cellsizebox}{\imagecell[fill]{}{#5}}%
		\end{cell}%
		%
		\begin{cell}{\collageXX, \collageY}{\CollageSecondWidth}{\CollageFirstHeight}%
			\ifdraft{\cellsizebox}{\imagecell[fill]{}{#6}}%
		\end{cell}%
		%
		\begin{cell}{\collageX, \collageYY}{\CollageFirstWidth}{\CollageSecondHeight}%
			\ifdraft{\cellsizebox}{\imagecell[fill]{}{#7}}%
		\end{cell}%
		%
		\begin{cell}{\collageXX, \collageYY}{\CollageSecondWidth}{\CollageSecondHeight}%
			\ifdraft{\cellsizebox}{\imagecell[fill]{}{#8}}%
		\end{cell}%
	\end{page}%
}

% TODO: once the "CollageTwo" macro accepts the defaults for the ratio, remove this macro!
\newcommand{\Collage}[6]{\CollageTwo{#1}{#2}{0.5}{0.5}{#3}{#4}{#5}{#6}}


% Book information
\def\BookTitle{Foobar}
\def\BookAuthors{Franco Fusco}
\def\ThanksTo{Flynx}
\def\Edition{N/A}


\begin{document}
	
	% Author and copyright information.
	\BookInfoPage
	
	% "Square" aspect ratio
	\Collage{0cm}{0cm}{test}{test}{test}{test}
	\Collage{0cm}{0.5cm}{test}{test}{test}{test}
	\Collage{1cm}{0cm}{test}{test}{test}{test}
	\Collage{1cm}{0.5cm}{test}{test}{test}{test}
	
	% Non-square aspect ratio
	\CollageTwo{0cm}{0cm}{0.6}{0.6}{test}{test}{test}{test}
	\CollageTwo{0cm}{0.5cm}{0.6}{0.6}{test}{test}{test}{test}
	\CollageTwo{1cm}{0cm}{0.6}{0.6}{test}{test}{test}{test}
	\CollageTwo{1cm}{0.5cm}{0.6}{0.6}{test}{test}{test}{test}
	
	% Full bleed
	\CollageTwo{-\bleed}{0cm}{0.6}{0.6}{test}{test}{test}{test}
	\CollageTwo{-\bleed}{0.5cm}{0.6}{0.6}{test}{test}{test}{test}
\end{document}