cleanup: move pref related structs and functions to pref.c

These were declared in pref.h and defined in subsurfacestartup.c.
pref.c didn't even exist. Create it and move preferences-related
structs and functions there.

setup_system_prefs() is left in subsurfacestartup.c, since it
works with environment variables.

Signed-off-by: Berthold Stoeger <bstoeger@mail.tuwien.ac.at>

3 files changed, 133 insertions, 127 deletions

diff --git a/core/CMakeLists.txt b/core/CMakeLists.txt
index 9d92cc1d1..0d400931d 100644
--- a/core/CMakeLists.txt
+++ b/core/CMakeLists.txt
@@ -143,6 +143,7 @@ set(SUBSURFACE_CORE_LIB_SRCS
 	planner.h
 	plannernotes.c
 	pref.h
+	pref.c
 	profile.c
 	profile.h
 	qt-gui.h
diff --git a/core/pref.c b/core/pref.c
new file mode 100644
index 000000000..bc1f7f3ea
--- /dev/null
+++ b/core/pref.c
@@ -0,0 +1,128 @@
+// SPDX-License-Identifier: GPL-2.0
+#include "pref.h"
+#include "subsurface-string.h"
+
+struct preferences prefs, git_prefs;
+struct preferences default_prefs = {
+	.cloud_base_url = "https://cloud.subsurface-divelog.org/",
+	.units = SI_UNITS,
+	.unit_system = METRIC,
+	.coordinates_traditional = true,
+	.pp_graphs = {
+		.po2 = false,
+		.pn2 = false,
+		.phe = false,
+		.po2_threshold_min = 0.16,
+		.po2_threshold_max = 1.6,
+		.pn2_threshold = 4.0,
+		.phe_threshold = 13.0,
+	},
+	.mod = false,
+	.modpO2 = 1.6,
+	.ead = false,
+	.hrgraph = false,
+	.percentagegraph = false,
+	.dcceiling = true,
+	.redceiling = false,
+	.calcceiling = false,
+	.calcceiling3m = false,
+	.calcndltts = false,
+	.decoinfo = true,
+	.gflow = 30,
+	.gfhigh = 75,
+	.animation_speed = 500,
+	.gf_low_at_maxdepth = false,
+	.show_ccr_setpoint = false,
+	.show_ccr_sensors = false,
+	.show_scr_ocpo2 = false,
+	.font_size = -1,
+	.mobile_scale = 1.0,
+	.display_invalid_dives = false,
+	.show_sac = false,
+	.display_unused_tanks = false,
+	.display_default_tank_infos = true,
+	.show_average_depth = true,
+	.show_icd = false,
+	.ascrate75 = 9000 / 60,
+	.ascrate50 = 9000 / 60,
+	.ascratestops = 9000 / 60,
+	.ascratelast6m = 9000 / 60,
+	.descrate = 18000 / 60,
+	.sacfactor = 400,
+	.problemsolvingtime = 4,
+	.bottompo2 = 1400,
+	.decopo2 = 1600,
+	.bestmixend.mm = 30000,
+	.doo2breaks = false,
+	.dobailout = false,
+	.drop_stone_mode = false,
+	.switch_at_req_stop = false,
+	.min_switch_duration = 60,
+	.surface_segment = 0,
+	.last_stop = false,
+	.verbatim_plan = false,
+	.display_runtime = true,
+	.display_duration = true,
+	.display_transitions = true,
+	.display_variations = false,
+	.o2narcotic = true,
+	.safetystop = true,
+	.bottomsac = 20000,
+	.decosac = 17000,
+	.reserve_gas=40000,
+	.o2consumption = 720,
+	.pscr_ratio = 100,
+	.show_pictures_in_profile = true,
+	.tankbar = false,
+	.defaultsetpoint = 1100,
+	.geocoding = {
+		.category = { 0 }
+	},
+	.locale = {
+		.use_system_language = true,
+	},
+	.planner_deco_mode = BUEHLMANN,
+	.vpmb_conservatism = 3,
+	.distance_threshold = 100,
+	.time_threshold = 300,
+#if defined(SUBSURFACE_MOBILE)
+	.cloud_timeout = 10,
+#else
+	.cloud_timeout = 5,
+#endif
+	.auto_recalculate_thumbnails = true,
+	.extract_video_thumbnails = true,
+	.extract_video_thumbnails_position = 20,		// The first fifth seems like a reasonable place
+};
+
+/* copy a preferences block, including making copies of all included strings */
+void copy_prefs(struct preferences *src, struct preferences *dest)
+{
+	*dest = *src;
+	dest->divelist_font = copy_string(src->divelist_font);
+	dest->default_filename = copy_string(src->default_filename);
+	dest->default_cylinder = copy_string(src->default_cylinder);
+	dest->cloud_base_url = copy_string(src->cloud_base_url);
+	dest->cloud_git_url = copy_string(src->cloud_git_url);
+	dest->proxy_host = copy_string(src->proxy_host);
+	dest->proxy_user = copy_string(src->proxy_user);
+	dest->proxy_pass = copy_string(src->proxy_pass);
+	dest->time_format = copy_string(src->time_format);
+	dest->date_format = copy_string(src->date_format);
+	dest->date_format_short = copy_string(src->date_format_short);
+	dest->cloud_storage_password = copy_string(src->cloud_storage_password);
+	dest->cloud_storage_email = copy_string(src->cloud_storage_email);
+	dest->cloud_storage_email_encoded = copy_string(src->cloud_storage_email_encoded);
+	dest->ffmpeg_executable = copy_string(src->ffmpeg_executable);
+}
+
+/*
+ * Free strduped prefs before exit.
+ *
+ * These are not real leaks but they plug the holes found by eg.
+ * valgrind so you can find the real leaks.
+ */
+void free_prefs(void)
+{
+	// nop
+}
diff --git a/core/subsurfacestartup.c b/core/subsurfacestartup.c
index a04be7290..32770c69f 100644
--- a/core/subsurfacestartup.c
+++ b/core/subsurfacestartup.c
@@ -2,108 +2,17 @@
 #include "subsurfacestartup.h"
 #include "subsurface-string.h"
 #include "version.h"
-#include <stdbool.h>
-#include <string.h>
 #include "errorhelper.h"
 #include "gettext.h"
 #include "qthelper.h"
 #include "git-access.h"
+#include "pref.h"
 #include "libdivecomputer/version.h"
 
-extern void show_computer_list();
+#include <stdbool.h>
+#include <string.h>
 
-struct preferences prefs, git_prefs;
-struct preferences default_prefs = {
-	.cloud_base_url = "https://cloud.subsurface-divelog.org/",
-	.units = SI_UNITS,
-	.unit_system = METRIC,
-	.coordinates_traditional = true,
-	.pp_graphs = {
-		.po2 = false,
-		.pn2 = false,
-		.phe = false,
-		.po2_threshold_min = 0.16,
-		.po2_threshold_max = 1.6,
-		.pn2_threshold = 4.0,
-		.phe_threshold = 13.0,
-	},
-	.mod = false,
-	.modpO2 = 1.6,
-	.ead = false,
-	.hrgraph = false,
-	.percentagegraph = false,
-	.dcceiling = true,
-	.redceiling = false,
-	.calcceiling = false,
-	.calcceiling3m = false,
-	.calcndltts = false,
-	.decoinfo = true,
-	.gflow = 30,
-	.gfhigh = 75,
-	.animation_speed = 500,
-	.gf_low_at_maxdepth = false,
-	.show_ccr_setpoint = false,
-	.show_ccr_sensors = false,
-	.show_scr_ocpo2 = false,
-	.font_size = -1,
-	.mobile_scale = 1.0,
-	.display_invalid_dives = false,
-	.show_sac = false,
-	.display_unused_tanks = false,
-	.display_default_tank_infos = true,
-	.show_average_depth = true,
-	.show_icd = false,
-	.ascrate75 = 9000 / 60,
-	.ascrate50 = 9000 / 60,
-	.ascratestops = 9000 / 60,
-	.ascratelast6m = 9000 / 60,
-	.descrate = 18000 / 60,
-	.sacfactor = 400,
-	.problemsolvingtime = 4,
-	.bottompo2 = 1400,
-	.decopo2 = 1600,
-	.bestmixend.mm = 30000,
-	.doo2breaks = false,
-	.dobailout = false,
-	.drop_stone_mode = false,
-	.switch_at_req_stop = false,
-	.min_switch_duration = 60,
-	.surface_segment = 0,
-	.last_stop = false,
-	.verbatim_plan = false,
-	.display_runtime = true,
-	.display_duration = true,
-	.display_transitions = true,
-	.display_variations = false,
-	.o2narcotic = true,
-	.safetystop = true,
-	.bottomsac = 20000,
-	.decosac = 17000,
-	.reserve_gas=40000,
-	.o2consumption = 720,
-	.pscr_ratio = 100,
-	.show_pictures_in_profile = true,
-	.tankbar = false,
-	.defaultsetpoint = 1100,
-	.geocoding = {
-		.category = { 0 }
-	},
-	.locale = {
-		.use_system_language = true,
-	},
-	.planner_deco_mode = BUEHLMANN,
-	.vpmb_conservatism = 3,
-	.distance_threshold = 100,
-	.time_threshold = 300,
-#if defined(SUBSURFACE_MOBILE)
-	.cloud_timeout = 10,
-#else
-	.cloud_timeout = 5,
-#endif
-	.auto_recalculate_thumbnails = true,
-	.extract_video_thumbnails = true,
-	.extract_video_thumbnails_position = 20,		// The first fifth seems like a reasonable place
-};
+extern void show_computer_list();
 
 int quit, force_root, ignore_bt;
 #ifdef SUBSURFACE_MOBILE_DESKTOP
@@ -317,35 +226,3 @@ void setup_system_prefs(void)
 
 	default_prefs.units = IMPERIAL_units;
 }
-
-/* copy a preferences block, including making copies of all included strings */
-void copy_prefs(struct preferences *src, struct preferences *dest)
-{
-	*dest = *src;
-	dest->divelist_font = copy_string(src->divelist_font);
-	dest->default_filename = copy_string(src->default_filename);
-	dest->default_cylinder = copy_string(src->default_cylinder);
-	dest->cloud_base_url = copy_string(src->cloud_base_url);
-	dest->cloud_git_url = copy_string(src->cloud_git_url);
-	dest->proxy_host = copy_string(src->proxy_host);
-	dest->proxy_user = copy_string(src->proxy_user);
-	dest->proxy_pass = copy_string(src->proxy_pass);
-	dest->time_format = copy_string(src->time_format);
-	dest->date_format = copy_string(src->date_format);
-	dest->date_format_short = copy_string(src->date_format_short);
-	dest->cloud_storage_password = copy_string(src->cloud_storage_password);
-	dest->cloud_storage_email = copy_string(src->cloud_storage_email);
-	dest->cloud_storage_email_encoded = copy_string(src->cloud_storage_email_encoded);
-	dest->ffmpeg_executable = copy_string(src->ffmpeg_executable);
-}
-
-/*
- * Free strduped prefs before exit.
- *
- * These are not real leaks but they plug the holes found by eg.
- * valgrind so you can find the real leaks.
- */
-void free_prefs(void)
-{
-	// nop
-}