improve component handling

src/ptk.c

@@ -122,7 +122,7 @@ bool ptk_init(const size_t width, const size_t height, const char *title, const
     glfwSetKeyCallback(m_window, key_callback);
     glfwSetMouseButtonCallback(m_window, mouse_button_callback);
 
-    vk_components_init();
+    vk_init_vertices();
 
     if (!vk_init(m_window, width, height, title, application_version)) {
         PTK_ERR("failed initializing vulkan");
@@ -198,17 +198,8 @@ PtkHandle ptk_clickable(PtkHandle hitbox, const MouseButtonCallback on_press) {
     return (PtkHandle)ret;
 }
 
-void init_component(PtkHandle component) {
-    vk_component(component);
-    for (size_t i = 0; i < component->children.size; ++i) {
-        PtkHandle child = component->children.data[i];
-        child->parent = component;
-        init_component(child);
-    }
-}
-
 int ptk_run(PtkHandle root) {
-    init_component(root);
+    vk_init_components(root);
 
     while (!glfwWindowShouldClose(m_window)) {
         glfwPollEvents();

src/ptk_vk/components.c

@@ -5,6 +5,7 @@
 #include <ptk_vk/components.h>
 #include <ptk_vk/init.h>
 
+static PtkHandle m_root_component;
 static PTK_LIST(PtkHandle) m_components;
 
 PTK_LIST(Vertex) g_vertices;
@@ -16,7 +17,7 @@ static const PtkVec2 uvs[] = {
     { .x = 1.0f, .y = 1.0f },
 };
 
-void vk_components_init(void) {
+void vk_init_vertices(void) {
     m_components = PTK_LIST_NEW(PtkHandle, 1);
 
     g_vertices = PTK_LIST_NEW(Vertex, 1);
@@ -83,28 +84,37 @@ void ellipse(const PtkEllipse *ellipse) {
     rect(r);
 }
 
-void vk_component(PtkHandle component) {
-    if (component->type == PTK_COMPONENT_TYPE_BOX) {
-        return;
-    }
+void component(PtkHandle c) {
+    PTK_LIST_ADD(PtkHandle, m_components, c);
 
-    PTK_LIST_ADD(PtkHandle, m_components, component);
-
-    switch (component->type) {
+    switch (c->type) {
         case PTK_COMPONENT_TYPE_TRIANGLE: {
-            triangle((PtkTriangle *)component, 0);
+            triangle((PtkTriangle *)c, 0);
         } break;
         case PTK_COMPONENT_TYPE_RECT: {
-            rect((PtkRect *)component);
+            rect((PtkRect *)c);
         } break;
         case PTK_COMPONENT_TYPE_ELLIPSE: {
-            ellipse((PtkEllipse *)component);
+            ellipse((PtkEllipse *)c);
         } break;
-        default: {
-            return;
-        }
+        default: break;
     }
+    for (size_t i = 0; i < c->children.size; ++i) {
+        PtkHandle child = c->children.data[i];
+        child->parent = c;
+        component(child);
+    }
+}
 
+void vk_init_components(PtkHandle root) {
+    m_root_component = root;
+    vk_update_components();
+}
+
+void vk_update_components(void) {
+    PTK_LIST_CLEAR(m_components);
+    PTK_LIST_CLEAR(g_vertices);
+    component(m_root_component);
     vk_transfer_vertex_data();
 }
 
@@ -171,6 +181,7 @@ void vk_handle_mouse_button_input(const PtkPos cursor_pos, const int button, con
 
         if (intersects((PtkHandle)c, cursor_pos)) {
             c->on_press(button, action, mods);
+            vk_update_components();
         }
     }
 }

src/ptk_vk/components.h

@@ -17,9 +17,11 @@ PTK_LIST_DEFINE(Vertex);
 
 extern PTK_LIST(Vertex) g_vertices;
 
-void vk_components_init(void);
+void vk_init_vertices(void);
 
-void vk_component(PtkHandle component);
+void vk_init_components(PtkHandle root);
+
+void vk_update_components(void);
 
 void vk_handle_mouse_button_input(const PtkPos cursor_pos, const int button, const int action, const int mode);