[ref][update] layout scale, and viewport context

Author: mrsrina

include/ekg/core/context.hpp

@@ -3,10 +3,31 @@
 
 #include "ekg/io/typography.hpp"
 #include "ekg/math/geometry.hpp"
+#include "ekg/ui/properties.hpp"
 
 namespace ekg {
   extern FT_Library freetype_library;
-  extern bool redraw;
+
+  extern struct viewport_t {
+    float x {};
+    float y {};
+    float w {};
+    float h {};
+
+    bool auto_scale {};
+    ekg::vec4_t<float> scale {};
+    bool redraw {};
+  } viewport;
+
+  extern struct current_t {
+    ekg::id_t pressed {};
+    ekg::type pressed_type {};
+    ekg::id_t released {};
+    ekg::type released_type {};
+    ekg::id_t last {};
+    ekg::id_t unique_id {};
+    ekg::type type {};
+  } current;
 }
 
 #endif

include/ekg/draw/shape.hpp

@@ -28,7 +28,7 @@
 #include <vector>
 #include <iostream>
 
-#include "ekg/geometry/geometry.hpp"
+#include "ekg/math/geometry.hpp"
 #include "ekg/gpu/api.hpp"
 
 #define ekg_draw_assert_scissor() if (ekg::gpu::allocator::is_out_of_scissor) { return;  }

include/ekg/gpu/allocator.hpp

@@ -29,7 +29,6 @@
 #include <vector>
 
 #include "ekg/gpu/api.hpp"
-#include "ekg/util/geometry.hpp"
 
 namespace ekg::gpu {
   class allocator {

include/ekg/layout/dimension.hpp

@@ -6,8 +6,8 @@ namespace ekg {
    * Estimate height from a container children list.
    * Note: Recursive.
    **/
-  float estimate_height(
-    ekg::ui::abstract_widget *p_parent_widget
+  float estimate_docknizable_height(
+    ekg::ui::abstract *p_parent_widget
   );
 }
 

include/ekg/math/geometry.hpp

@@ -41,6 +41,14 @@ namespace ekg {
     }
 
     // TODO: add non-useless vector 2 properties operators
+  
+    template<typename t>
+    operator ekg::vec2_t<t>() {
+      return ekg::vec2_t<t>{
+        static_cast<t>(this->x),
+        static_cast<t>(this->y)
+      };
+    }
   };
 
   template<typename t>
@@ -62,6 +70,15 @@ namespace ekg {
     }
 
     // TODO: add non-useless vector 3 properties operators
+
+    template<typename t>
+    operator ekg::vec3_t<t>() {
+      return ekg::vec3_t<t>{
+        static_cast<t>(this->x),
+        static_cast<t>(this->y),
+        static_cast<t>(this->z)
+      };
+    }
   };
 
   template<typename t>
@@ -86,6 +103,16 @@ namespace ekg {
 
     // TODO: add non-useless vector 4 properties operators
 
+    template<typename t>
+    operator ekg::vec4_t<t>() {
+      return ekg::vec4_t<t>{
+        static_cast<t>(this->x),
+        static_cast<t>(this->y),
+        static_cast<t>(this->z),
+        static_cast<t>(this->w)
+      };
+    }
+
     template<typename s>
     ekg::vec4_t<t> operator / (s div_by) {
       return ekg::vec4_t<t> {
@@ -129,6 +156,26 @@ namespace ekg {
     }
 
     // TODO: add non-useless rect (aka vector 4 properties) operators
+
+    template<typename t>
+    operator ekg::rect_t<t>() {
+      return ekg::rect_t<t>{
+        static_cast<t>(this->x),
+        static_cast<t>(this->y),
+        static_cast<t>(this->w),
+        static_cast<t>(this->h)
+      };
+    }
+    
+    template<typename t>
+    operator ekg::vec4_t<t>() {
+      return ekg::vec4_t<t>{
+        static_cast<t>(this->x),
+        static_cast<t>(this->y),
+        static_cast<t>(this->w),
+        static_cast<t>(this->h)
+      };
+    }
   };
 
   struct rect_descriptor_t {

include/ekg/os/ekg_glfw.hpp

@@ -24,8 +24,8 @@ namespace ekg {
   public:
     void init() override;
     void quit() override;
-    void update_monitor_resolution() override;
-    void update_cursor(ekg::system_cursor_type system_cursor) override;
+    void update_display_size() override;
+    void update_cursor() override;
     void get_key_name(ekg::io::input_key_t &key, std::string &name) override;
     void get_special_key(ekg::io::input_key_t &key, ekg::special_key_type &special_key) override;
     const char *get_clipboard_text() override;

include/ekg/os/ekg_sdl.hpp

@@ -48,7 +48,7 @@ namespace ekg {
   public:
     void init() override;
     void quit() override;
-    void update_monitor_resolution() override;
+    void update_display_size() override;
     void update_cursor(ekg::system_cursor_type system_cursor) override;
     void get_key_name(ekg::io::input_key_t &key, std::string &name) override;
     void get_special_key(ekg::io::input_key_t &key, ekg::special_key_type &special_key) override;

include/ekg/os/platform.hpp

@@ -37,7 +37,7 @@ namespace ekg::os {
   public:
     virtual void init() {}
     virtual void quit() {}
-    virtual void update_monitor_resolution() {}
+    virtual void update_display_size() {}
     virtual void update_cursor() {}
     virtual void get_key_name(ekg::io::input_key_t &key, std::string &name) {}
     virtual void get_special_key(ekg::io::input_key_t &key, ekg::special_key_type special_key) {}

src/core/context.cpp

@@ -1,4 +1,5 @@
 #include "ekg/context.hpp"
 
 FT_Library ekg::freetype_library {};
-bool ekg::redraw {};
+ekg::viewport_t ekg::viewport {};
+ekg::current_t ekg::current {};

src/core/runtime.cpp

@@ -277,8 +277,8 @@ void ekg::runtime::update() {
 }
 
 void ekg::runtime::render() {
-  if (ekg::redraw) {
-    ekg::redraw = false;
+  if (ekg::viewport.redraw) {
+    ekg::viewport.redraw = false;
 
     /**
      * The allocator starts here, the GPU data instance