Added possibility to override theme font

CMakeLists.txt

@@ -1,7 +1,7 @@
 cmake_minimum_required (VERSION 2.8.8)
 
 project(juci)
-set(JUCI_VERSION "1.4.6.2")
+set(JUCI_VERSION "1.4.6.3")
 
 set(CPACK_PACKAGE_NAME "jucipp")
 set(CPACK_PACKAGE_CONTACT "Ole Christian Eidheim <eidheim@gmail.com>")

src/config.cc

@@ -184,9 +184,11 @@ void Config::read(const boost::property_tree::ptree &cfg) {
     }
   }
 
-  window.theme_name = cfg.get<std::string>("gtk_theme.name");
+  version = cfg.get<std::string>("version");
-  window.theme_variant = cfg.get<std::string>("gtk_theme.variant");
+
-  window.version = cfg.get<std::string>("version");
+  theme.name = cfg.get<std::string>("gtk_theme.name");
+  theme.variant = cfg.get<std::string>("gtk_theme.variant");
+  theme.font = cfg.get<std::string>("gtk_theme.font");
 
   project.default_build_path = cfg.get<std::string>("project.default_build_path");
   project.debug_build_path = cfg.get<std::string>("project.debug_build_path");

src/config.h

@@ -14,11 +14,11 @@ public:
     std::unordered_map<std::string, std::string> keys;
   };
 
-  class Window {
+  class Theme {
   public:
-    std::string theme_name;
+    std::string name;
-    std::string theme_variant;
+    std::string variant;
-    std::string version;
+    std::string font;
   };
 
   class Terminal {
@@ -111,8 +111,9 @@ public:
 
   void load();
 
+  std::string version;
   Menu menu;
-  Window window;
+  Theme theme;
   Terminal terminal;
   Project project;
   Source source;

src/files.h

@@ -10,7 +10,9 @@ const std::string default_config_file = R"RAW({
         "name_comment": "Use \"\" for default theme, At least these two exist on all systems: Adwaita, Raleigh",
         "name": "",
         "variant_comment": "Use \"\" for default variant, and \"dark\" for dark theme variant. Note that not all themes support dark variant, but for instance Adwaita does",
-        "variant": ""
+        "variant": "",
+        "font_comment": "Set to override theme font, for instance: \"Arial 12\"",
+        "font": ""
     },
     "source": {
         "style_comment": "Use \"\" for default style, and for instance juci-dark or juci-dark-blue together with dark gtk_theme variant. Styles from normal gtksourceview install: classic, cobalt, kate, oblivion, solarized-dark, solarized-light, tango",

src/window.cc

@@ -122,7 +122,7 @@ Window::Window() {
   });
 
   about.set_logo_icon_name("juci");
-  about.set_version(Config::get().window.version);
+  about.set_version(Config::get().version);
   about.set_authors({"(in order of appearance)",
                      "Ted Johan Kristoffersen",
                      "Jørgen Lien Sellæg",
@@ -140,15 +140,37 @@ void Window::configure() {
   auto screen = get_screen();
   if(css_provider_theme)
     Gtk::StyleContext::remove_provider_for_screen(screen, css_provider_theme);
-  if(Config::get().window.theme_name.empty()) {
+  if(Config::get().theme.name.empty()) {
     css_provider_theme = Gtk::CssProvider::create();
-    Gtk::Settings::get_default()->property_gtk_application_prefer_dark_theme() = (Config::get().window.theme_variant == "dark");
+    Gtk::Settings::get_default()->property_gtk_application_prefer_dark_theme() = (Config::get().theme.variant == "dark");
   }
   else
-    css_provider_theme = Gtk::CssProvider::get_named(Config::get().window.theme_name, Config::get().window.theme_variant);
+    css_provider_theme = Gtk::CssProvider::get_named(Config::get().theme.name, Config::get().theme.variant);
   //TODO: add check if theme exists, or else write error to terminal
   Gtk::StyleContext::add_provider_for_screen(screen, css_provider_theme, GTK_STYLE_PROVIDER_PRIORITY_SETTINGS);
 
+  if(css_provider_theme_font)
+    Gtk::StyleContext::remove_provider_for_screen(screen, css_provider_theme_font);
+  if(!Config::get().theme.font.empty()) {
+    Pango::FontDescription font_description(Config::get().theme.font);
+    try {
+      css_provider_theme_font = Gtk::CssProvider::create();
+      auto family = font_description.get_family();
+      auto size = std::to_string(font_description.get_size() / 1024);
+      if(size == "0")
+        size.clear();
+      if(!family.empty())
+        family = "font-family: " + family + ';';
+      if(!size.empty())
+        size = "font-size: " + size + "px;";
+      css_provider_theme_font->load_from_data("* {" + family + size + "}");
+      get_style_context()->add_provider_for_screen(screen, css_provider_theme_font, GTK_STYLE_PROVIDER_PRIORITY_APPLICATION);
+    }
+    catch(const Gtk::CssProviderError &e) {
+      Terminal::get().print("Error: could not override theme font: " + e.what() + '\n', true);
+    }
+  }
+
   auto style_scheme_manager = Source::StyleSchemeManager::get_default();
   if(css_provider_tooltips)
     Gtk::StyleContext::remove_provider_for_screen(screen, css_provider_tooltips);

src/window.h

@@ -23,6 +23,7 @@ private:
   Gtk::AboutDialog about;
 
   Glib::RefPtr<Gtk::CssProvider> css_provider_theme;
+  Glib::RefPtr<Gtk::CssProvider> css_provider_theme_font;
   Glib::RefPtr<Gtk::CssProvider> css_provider_tooltips;
 
   void configure();