Use the Windows default font on Windows 7 and 8/8.1

It contains the characters we need and will make the application look more
"native".

See #712

Signed-off-by: Dirk Hohndel <dirk@hohndel.org>

6 files changed, 37 insertions, 5 deletions

diff --git a/linux.c b/linux.c
index ed063b28c..2e37054a9 100644
--- a/linux.c
+++ b/linux.c
@@ -12,9 +12,15 @@
 #include <unistd.h>
 #include <pwd.h>
 
-const char system_divelist_default_font[] = "Sans";
+const char linux_system_divelist_default_font[] = "Sans";
+const char *system_divelist_default_font = linux_system_divelist_default_font;
 const int system_divelist_default_font_size = 8;
 
+void subsurface_OS_pref_setup(void)
+{
+	// nothing
+}
+
 void subsurface_user_info(struct user_info *user)
 {
 	struct passwd *pwd = getpwuid(getuid());
diff --git a/macos.c b/macos.c
index b75ddbf6f..c51ef9f7b 100644
--- a/macos.c
+++ b/macos.c
@@ -28,9 +28,15 @@ void subsurface_user_info(struct user_info *info)
 #define ICON_NAME "Subsurface.icns"
 #define UI_FONT "Arial 12"
 
-const char system_divelist_default_font[] = "Arial";
+const char mac_system_divelist_default_font[] = "Arial";
+const char *system_divelist_default_font = mac_system_divelist_default_font;
 const int system_divelist_default_font_size = 10;
 
+void subsurface_OS_pref_setup(void)
+{
+	// nothing
+}
+
 const char *system_default_filename(void)
 {
 	const char *home, *user;
diff --git a/pref.h b/pref.h
index 8bde0da80..9076eff99 100644
--- a/pref.h
+++ b/pref.h
@@ -79,9 +79,10 @@ extern struct preferences prefs, default_prefs;
 
 #define PP_GRAPHS_ENABLED (prefs.pp_graphs.po2 || prefs.pp_graphs.pn2 || prefs.pp_graphs.phe)
 
-extern const char system_divelist_default_font[];
+extern const char *system_divelist_default_font;
 extern const int system_divelist_default_font_size;
 extern const char *system_default_filename();
+extern void subsurface_OS_pref_setup();
 
 #ifdef __cplusplus
 }
diff --git a/subsurfacestartup.c b/subsurfacestartup.c
index 8edc409be..10dacfcba 100644
--- a/subsurfacestartup.c
+++ b/subsurfacestartup.c
@@ -195,6 +195,7 @@ void setup_system_prefs(void)
 {
 	const char *env;
 
+	subsurface_OS_pref_setup();
 	default_prefs.divelist_font = strdup(system_divelist_default_font);
 	default_prefs.font_size = system_divelist_default_font_size;
 	default_prefs.default_filename = system_default_filename();
diff --git a/subsurfacesysinfo.cpp b/subsurfacesysinfo.cpp
index caa9db8a5..4093654ee 100644
--- a/subsurfacesysinfo.cpp
+++ b/subsurfacesysinfo.cpp
@@ -479,3 +479,11 @@ QString SubsurfaceSysInfo::osArch()
 #endif
 	return res;
 }
+
+extern "C" {
+bool isWin7Or8()
+{
+	QString os = SubsurfaceSysInfo::prettyOsName();
+	return os == "Windows 7" || os.startsWith("Windows 8");
+}
+}
diff --git a/windows.c b/windows.c
index 099ad502e..a4fe1e2c2 100644
--- a/windows.c
+++ b/windows.c
@@ -12,12 +12,22 @@
 #include <dirent.h>
 #include <zip.h>
 
-const char system_divelist_default_font[] = "Calibri";
-const int system_divelist_default_font_size = 8;
+const char non_standard_system_divelist_default_font[] = "Calibri";
+const char current_system_divelist_default_font[] = "Segoe UI";
+const char *system_divelist_default_font = non_standard_system_divelist_default_font;
+const int system_divelist_default_font_size = 9;
 
 void subsurface_user(struct user_info *user)
 { /* Encourage use of at least libgit2-0.20 */ }
 
+extern bool isWin7Or8();
+
+void subsurface_OS_pref_setup(void)
+{
+	if (isWin7Or8())
+		system_divelist_default_font = current_system_divelist_default_font;
+}
+
 const char *system_default_filename(void)
 {
 	char datapath[MAX_PATH];