Add comments for shortcuts and extract them for the manual (#2073).

3 files changed, 47 insertions, 39 deletions

diff --git a/doc/manual/Makefile b/doc/manual/Makefile
index 6e2c12d41..d57dd2630 100644
--- a/doc/manual/Makefile
+++ b/doc/manual/Makefile
@@ -99,11 +99,16 @@ diagrams/%.pdf:	diagrams/%.svg
 config.xml:	../../src/lib/config.cc config.py
 	python3 config.py ../../src/lib/config.cc > config.xml
 
+SHORTCUTS :=	../../src/tools/dcpomatic.cc
+
+shortcuts.xml:	$(SHORTCUTS) shortcuts.py
+	python3 shortcuts.py $(SHORTCUTS) > $@
+
 #
 # HTML
 #
 
-html:	$(XML) config.xml dcpomatic-html.xsl extensions-html.ent dcpomatic.css dcpomatic_create.xml dcpomatic_cli.xml dcpomatic_kdm_cli.xml \
+html:	$(XML) config.xml shortcuts.xml dcpomatic-html.xsl extensions-html.ent dcpomatic.css dcpomatic_create.xml dcpomatic_cli.xml dcpomatic_kdm_cli.xml \
 	$(subst .pdf,.png,$(addprefix html/screenshots/,$(SCREENSHOTS))) \
 	$(subst .svg,.png,$(addprefix diagrams/,$(DIAGRAMS))) \
 
diff --git a/doc/manual/dcpomatic.xml b/doc/manual/dcpomatic.xml
index 4fd17dd6d..797a49fe5 100644
--- a/doc/manual/dcpomatic.xml
+++ b/doc/manual/dcpomatic.xml
@@ -3779,44 +3779,7 @@ The full details of OV and VF files are discussed in <xref linkend="sec-overlay"
 <!-- ============================================================== -->
 <chapter>
 <title>Keyboard shortcuts</title>
-
-<table id="keyboard-shortcuts">
-  <title>Keyboard shortcuts</title>
-  <tgroup cols='2' align='left' colsep='1' rowsep='1'>
-    <thead>
-      <row>
-	<entry>Key</entry>
-	<entry>Action</entry>
-      </row>
-    </thead>
-    <tbody>
-      <row>
-        <entry>Space</entry>
-	<entry>Start / stop playback</entry>
-      </row>
-      <row>
-        <entry>Delete</entry>
-	<entry>Remove content from film</entry>
-      </row>
-      <row>
-        <entry>Left arrow</entry>
-	<entry>Move back one frame</entry>
-      </row>
-      <row>
-        <entry>Right arrow</entry>
-	<entry>Move forward one frame</entry>
-      </row>
-      <row>
-        <entry>Ctrl+A</entry>
-	<entry>Add file(s) to film</entry>
-      </row>
-      <row>
-        <entry>Ctrl+T</entry>
-	<entry>Open timeline window</entry>
-      </row>
-    </tbody>
-  </tgroup>
-</table>
+<xi:include xmlns:xi="http://www.w3.org/2001/XInclude" href="shortcuts.xml"/>
 </chapter>
 
 
diff --git a/doc/manual/shortcuts.py b/doc/manual/shortcuts.py
new file mode 100644
index 000000000..a18786799
--- /dev/null
+++ b/doc/manual/shortcuts.py
@@ -0,0 +1,40 @@
+import sys
+
+shortcuts = []
+
+for filename in sys.argv[1:]:
+    with open(filename) as f:
+        for line in f:
+            line = line.strip();
+            if line.startswith('/* [Shortcut] '):
+                desc = line[14:-2].strip()
+                parts = desc.split(':')
+                shortcuts.append(desc.split(':'))
+
+shortcuts.sort(key=lambda x: x[0])
+
+print("""
+<table id="keyboard shortcuts">
+  <title>Keyboard shortcuts</title>
+  <tgroup cols='2' align='left' colsep='1' rowsep='1'>
+    <thead>
+      <row>
+	<entry>Key</entry>
+	<entry>Action</entry>
+      </row>
+    </thead>
+    <tbody>
+""")
+
+for s in shortcuts:
+    print("      <row>")
+    print(f"        <entry>{s[0]}</entry>")
+    print(f"        <entry>{s[1]}</entry>")
+    print("      </row>")
+
+print("""
+    </tbody>
+  </tgroup>
+</table>
+""")
+