From b2bd94f898c1cc2c060cc69bb72f32a4b188a666 Mon Sep 17 00:00:00 2001
From: Carl Kittelberger <icedream@icedream.pw>
Date: Thu, 15 Mar 2018 09:38:41 +0100
Subject: [PATCH] Set up PNG/SVG generation from LibreOffice Draw documents.

---
 .gitignore |  4 ++++
 Makefile   | 31 +++++++++++++++++++++++++++----
 2 files changed, 31 insertions(+), 4 deletions(-)

diff --git a/.gitignore b/.gitignore
index 4d6823f..bf1caff 100644
--- a/.gitignore
+++ b/.gitignore
@@ -97,6 +97,10 @@ sympy-plots-for-*.tex/
 sheets
 #!AA_*.pdf
 
+# Lock files
+.~lock*
+*#
+
 # Vim/Nano session files
 [._]*.s[a-w][a-z]
 [._]s[a-w][a-z]
diff --git a/Makefile b/Makefile
index 1fe4d6c..3207c0a 100644
--- a/Makefile
+++ b/Makefile
@@ -11,23 +11,37 @@ PANDOC_TEX_FLAGS = --template=template.tex
 PANDOC_TEX_DEPENDENCIES = template.tex
 SOFFICE = soffice
 SOFFICE_FLAGS = --headless
+INKSCAPE = inkscape
+INKSCAPE_FLAGS = 
 
 MARKDOWN_INPUTS = $(wildcard *.md)
 
-.PHONY: all build clean clean-pdf clean-tex clean-odt clean-docx default
+ODG_INPUTS = $(wildcard img/*/*.odg)
+
+.PHONY: all clean clean-pdf clean-tex clean-svg clean-png all-pdf all-tex all-svg all-png default
 
 TEXINPUTS := .:./pkg/:$(TEXINPUTS)
 export TEXINPUTS
 
 default: all
 
-all: all-tex all-pdf
+all: all-tex all-svg all-png all-pdf
+
+all-svg: $(addsuffix .svg,$(basename $(ODG_INPUTS)))
+
+all-png: $(addsuffix .png,$(basename $(ODG_INPUTS)))
 
 all-tex: $(addsuffix .tex,$(basename $(MARKDOWN_INPUTS)))
 
 all-pdf: $(addsuffix .pdf,$(basename $(MARKDOWN_INPUTS)))
 
-clean: clean-pdf clean-tex
+clean: clean-pdf clean-tex clean-svg clean-png
+
+clean-svg:
+	rm -f $(addsuffix .svg,$(basename $(ODG_INPUTS)))
+
+clean-png:
+	rm -f $(addsuffix .png,$(basename $(ODG_INPUTS)))
 
 clean-tex:
 	rm -f $(addsuffix .tex,$(basename $(MARKDOWN_INPUTS)))
@@ -42,7 +56,16 @@ clean-pdf:
 		$(addsuffix .toc,$(basename $(MARKDOWN_INPUTS))) \
 		missfont.log
 
-%.pdf: %.tex $(PANDOC_TEX_DEPENDENCIES)
+%.svg: %.odg
+	@echo $< "->" $@
+	$(SOFFICE) $(SOFFICE_FLAGS) --draw --convert-to svg:draw_svg_Export \
+		--outdir $(dir $<) $<
+
+%.png: %.svg
+	@echo $< "->" $@
+	$(INKSCAPE) $(INKSCAPE_FLAGS) -D -z -e $@ -d 720 $<
+
+%.pdf: %.tex all-svg $(PANDOC_TEX_DEPENDENCIES)
 	@echo $< "->" $@
 	$(LATEX) $(LATEX_FLAGS) $(LATEX_PDF_FLAGS) $< 1>/dev/null
 	$(LATEX) $(LATEX_FLAGS) $(LATEX_PDF_FLAGS) $< 1>/dev/null