Can now change the layout for any slide.

assets/layouts.json

@@ -1,18 +1,28 @@
 {
   "default_ui": [
       "[t_left|t_center|t_right]",
-      "[*%(300,500)slide|_|_|*%(200,500)alternate|_]",
+      "[*%(100,600)slide]",
-      "[_|_|_|_|_]",
-      "[_|_|_|_|_]",
-      "[_|_|_|_|_]",
-      "[_|_|_|_|_]",
       "[_]",
-      "[title|*%(200,100)description|_|_|_]"
+      "[_]",
+      "[_]",
+      "[_]",
+      "[_]",
+      "[=title|=*%(200,100)description|_|_|_]"
   ],
   "default_slide": [
-        "[=*%(300,200)title|_|_]",
+        "[=*%(300,200)title|_|_|_|_]",
+        "[_|_|_]",
+        "[*%(300,600)content|_|_|*%(200,600)alt|_]",
+        "[_|_|_|_|_]",
+        "[_|_|_|_|_]",
+        "[_|_|_|_|_]",
+        "[_|_|_|_|_]",
+        "[_|_|_|_|_]"
+  ],
+  "centered": [
+        "[=*%(300,200)title|_|_|_|_]",
         "[_|_|_]",
-        "[*%(300,600)content|_|_]",
+        "[=*%(300,600)content]",
         "[_|_|_]",
         "[_|_|_]",
         "[_|_|_]",

sample/about-bezos.md

@@ -54,7 +54,8 @@ Bare content like this
 ---
 {
   "font_size": 120,
-  "font_centered": true
+  "font_centered": true,
+  "layout": "centered"
 }
 One Word
 ---

src/main.cpp

@@ -36,7 +36,7 @@ struct ChangeDetector {
   sf::Clock timer{};
   std::filesystem::file_time_type last_mod_time = std::filesystem::last_write_time(input_md);
 
-  bool check_changed() {
+  bool changed() {
     if(timer.getElapsedTime().toDuration() > 500ms) {
       try {
         auto mod_time = std::filesystem::last_write_time(input_md);
@@ -89,7 +89,8 @@ int main(int argc, char *argv[]) {
 
   dbc::check(control_ui.$status != nullptr, "bad ptr");
 
-  ChangeDetector reloader{argv[1]};
+  ChangeDetector slides_reloader{argv[1]};
+  ChangeDetector layout_reloader{slides.$deck->config["layouts"]};
 
   while(controller.isOpen()) {
     while (const auto event = presenter.pollEvent()) {
@@ -106,7 +107,7 @@ int main(int argc, char *argv[]) {
     presenter.display();
     controller.display();
 
-    if(reloader.check_changed()) {
+    if(slides_reloader.changed() || layout_reloader.changed()) {
       auto new_slides = load_slides(argv[1], backend);
 
       if(new_slides) {

src/slides_ui.cpp

@@ -153,11 +153,18 @@ void SlidesUI::show_slide() {
     color = {color_conf[0], color_conf[1], color_conf[2], color_conf[3]};
   }
 
+  std::string layout_name{"default_slide"};
+
+  if(slide.$config.contains("layout")) {
+    layout_name = slide.$config["layout"];
+  }
+
+  auto& layout = $layouts[layout_name];
+
   bg.set_color(color);
   bg.init();
 
   auto& cell = $gui.cell_for("slide");
-  auto& layout = $layouts["default_slide"];
   slide.init(cell, layout);
 }