Make all header *.hpp .

47 files changed, 159 insertions, 159 deletions

diff --git a/CruUI.vcxproj b/CruUI.vcxproj
index e5eb1950..048c06cc 100644
--- a/CruUI.vcxproj
+++ b/CruUI.vcxproj
@@ -131,9 +131,9 @@
     <ClCompile Include="src\ui\controls\linear_layout.cpp" />
     <ClCompile Include="src\ui\controls\text_block.cpp" />
     <ClCompile Include="src\ui\controls\text_box.cpp" />
-    <ClInclude Include="src\format.h" />
-    <ClInclude Include="src\ui\border_property.h" />
-    <ClInclude Include="src\ui\controls\text_control.h" />
+    <ClInclude Include="src\format.hpp" />
+    <ClInclude Include="src\ui\border_property.hpp" />
+    <ClInclude Include="src\ui\controls\text_control.hpp" />
     <ClCompile Include="src\ui\controls\toggle_button.cpp" />
     <ClCompile Include="src\ui\cursor.cpp" />
     <ClCompile Include="src\ui\events\ui_event.cpp" />
@@ -142,28 +142,28 @@
     <ClCompile Include="src\ui\window.cpp" />
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="src\application.h" />
-    <ClInclude Include="src\base.h" />
-    <ClInclude Include="src\cru_event.h" />
-    <ClInclude Include="src\cru_debug.h" />
-    <ClInclude Include="src\exception.h" />
-    <ClInclude Include="src\global_macros.h" />
-    <ClInclude Include="src\graph\graph.h" />
-    <ClInclude Include="src\system_headers.h" />
-    <ClInclude Include="src\timer.h" />
-    <ClInclude Include="src\ui\animations\animation.h" />
-    <ClInclude Include="src\ui\control.h" />
-    <ClInclude Include="src\ui\controls\button.h" />
-    <ClInclude Include="src\ui\controls\linear_layout.h" />
-    <ClInclude Include="src\ui\controls\text_block.h" />
-    <ClInclude Include="src\ui\controls\text_box.h" />
+    <ClInclude Include="src\application.hpp" />
+    <ClInclude Include="src\base.hpp" />
+    <ClInclude Include="src\cru_event.hpp" />
+    <ClInclude Include="src\cru_debug.hpp" />
+    <ClInclude Include="src\exception.hpp" />
+    <ClInclude Include="src\global_macros.hpp" />
+    <ClInclude Include="src\graph\graph.hpp" />
+    <ClInclude Include="src\system_headers.hpp" />
+    <ClInclude Include="src\timer.hpp" />
+    <ClInclude Include="src\ui\animations\animation.hpp" />
+    <ClInclude Include="src\ui\control.hpp" />
+    <ClInclude Include="src\ui\controls\button.hpp" />
+    <ClInclude Include="src\ui\controls\linear_layout.hpp" />
+    <ClInclude Include="src\ui\controls\text_block.hpp" />
+    <ClInclude Include="src\ui\controls\text_box.hpp" />
     <ClCompile Include="src\ui\controls\text_control.cpp" />
-    <ClInclude Include="src\ui\controls\toggle_button.h" />
-    <ClInclude Include="src\ui\cursor.h" />
-    <ClInclude Include="src\ui\events\ui_event.h" />
-    <ClInclude Include="src\ui\layout_base.h" />
-    <ClInclude Include="src\ui\ui_base.h" />
-    <ClInclude Include="src\ui\window.h" />
+    <ClInclude Include="src\ui\controls\toggle_button.hpp" />
+    <ClInclude Include="src\ui\cursor.hpp" />
+    <ClInclude Include="src\ui\events\ui_event.hpp" />
+    <ClInclude Include="src\ui\layout_base.hpp" />
+    <ClInclude Include="src\ui\ui_base.hpp" />
+    <ClInclude Include="src\ui\window.hpp" />
   </ItemGroup>
   <Import Project="$(VCTargetsPath)\Microsoft.Cpp.targets" />
   <ImportGroup Label="ExtensionTargets">
diff --git a/CruUI.vcxproj.filters b/CruUI.vcxproj.filters
index 17672509..08201810 100644
--- a/CruUI.vcxproj.filters
+++ b/CruUI.vcxproj.filters
@@ -77,76 +77,76 @@
     </ClCompile>
   </ItemGroup>
   <ItemGroup>
-    <ClInclude Include="src\application.h">
+    <ClInclude Include="src\graph\graph.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\base.h">
+    <ClInclude Include="src\ui\animations\animation.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\cru_event.h">
+    <ClInclude Include="src\ui\controls\button.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\exception.h">
+    <ClInclude Include="src\ui\controls\linear_layout.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\global_macros.h">
+    <ClInclude Include="src\ui\controls\text_block.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\system_headers.h">
+    <ClInclude Include="src\ui\controls\text_box.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\timer.h">
+    <ClInclude Include="src\ui\controls\text_control.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\graph\graph.h">
+    <ClInclude Include="src\ui\controls\toggle_button.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\ui\control.h">
+    <ClInclude Include="src\ui\events\ui_event.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\ui\layout_base.h">
+    <ClInclude Include="src\ui\border_property.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\ui\ui_base.h">
+    <ClInclude Include="src\ui\control.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\ui\window.h">
+    <ClInclude Include="src\ui\cursor.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\ui\animations\animation.h">
+    <ClInclude Include="src\ui\layout_base.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\ui\controls\button.h">
+    <ClInclude Include="src\ui\ui_base.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\ui\controls\linear_layout.h">
+    <ClInclude Include="src\ui\window.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\ui\controls\text_block.h">
+    <ClInclude Include="src\application.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\ui\controls\text_box.h">
+    <ClInclude Include="src\base.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\ui\controls\toggle_button.h">
+    <ClInclude Include="src\cru_debug.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\ui\events\ui_event.h">
+    <ClInclude Include="src\cru_event.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\ui\controls\text_control.h">
+    <ClInclude Include="src\exception.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\ui\border_property.h">
+    <ClInclude Include="src\format.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\ui\cursor.h">
+    <ClInclude Include="src\global_macros.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\format.h">
+    <ClInclude Include="src\system_headers.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
-    <ClInclude Include="src\cru_debug.h">
+    <ClInclude Include="src\timer.hpp">
       <Filter>Header Files</Filter>
     </ClInclude>
   </ItemGroup>
diff --git a/src/application.cpp b/src/application.cpp
index a7984d25..df99cab8 100644
--- a/src/application.cpp
+++ b/src/application.cpp
@@ -1,11 +1,11 @@
-#include "application.h"
-
-#include "exception.h"
-#include "timer.h"
-#include "ui/window.h"
-#include "ui/cursor.h"
-#include "graph/graph.h"
-#include "ui/animations/animation.h"
+#include "application.hpp"
+
+#include "exception.hpp"
+#include "timer.hpp"
+#include "ui/window.hpp"
+#include "ui/cursor.hpp"
+#include "graph/graph.hpp"
+#include "ui/animations/animation.hpp"
 
 namespace cru {
     constexpr auto god_window_class_name = L"GodWindowClass";
diff --git a/src/application.h b/src/application.hpp
index 530a781a..fe38ba0f 100644
--- a/src/application.h
+++ b/src/application.hpp
@@ -1,11 +1,11 @@
 #pragma once
 
-#include "system_headers.h"
+#include "system_headers.hpp"
 #include <memory>
 #include <optional>
 #include <functional>
 
-#include "base.h"
+#include "base.hpp"
 
 namespace cru 
 {
diff --git a/src/base.cpp b/src/base.cpp
index f5868170..a2d20fc4 100644
--- a/src/base.cpp
+++ b/src/base.cpp
@@ -1,7 +1,7 @@
-#include "base.h"
+#include "base.hpp"
 
-#include "system_headers.h"
-#include "exception.h"
+#include "system_headers.hpp"
+#include "exception.hpp"
 
 namespace cru
 {
diff --git a/src/base.h b/src/base.hpp
index 9b3b50a1..d4a3548f 100644
--- a/src/base.h
+++ b/src/base.hpp
@@ -1,7 +1,7 @@
 #pragma once
 
 // ReSharper disable once CppUnusedIncludeDirective
-#include "global_macros.h"
+#include "global_macros.hpp"
 
 
 #include <string>
diff --git a/src/cru_debug.cpp b/src/cru_debug.cpp
index 0007d21b..9c61d052 100644
--- a/src/cru_debug.cpp
+++ b/src/cru_debug.cpp
@@ -1,6 +1,6 @@
-#include "cru_debug.h"
+#include "cru_debug.hpp"
 
-#include "system_headers.h"
+#include "system_headers.hpp"
 
 namespace cru::debug
 {
diff --git a/src/cru_debug.h b/src/cru_debug.hpp
index c750e11f..ed6fcaf6 100644
--- a/src/cru_debug.h
+++ b/src/cru_debug.hpp
@@ -2,8 +2,8 @@
 
 #include <functional>
 
-#include "base.h"
-#include "format.h"
+#include "base.hpp"
+#include "format.hpp"
 
 namespace cru::debug
 {
diff --git a/src/cru_event.h b/src/cru_event.hpp
index 1103cdba..76a36b22 100644
--- a/src/cru_event.h
+++ b/src/cru_event.hpp
@@ -4,7 +4,7 @@
 #include <functional>
 #include <unordered_map>
 
-#include "base.h"
+#include "base.hpp"
 
 namespace cru {
 	//Base class of all event args.
diff --git a/src/exception.cpp b/src/exception.cpp
index 92face96..cb1ca2c7 100644
--- a/src/exception.cpp
+++ b/src/exception.cpp
@@ -1,6 +1,6 @@
-#include "exception.h"
+#include "exception.hpp"
 
-#include "format.h"
+#include "format.hpp"
 
 namespace cru
 {
diff --git a/src/exception.h b/src/exception.hpp
index ae9457e7..68558478 100644
--- a/src/exception.h
+++ b/src/exception.hpp
@@ -1,9 +1,9 @@
 #pragma once
 
-#include "system_headers.h"
+#include "system_headers.hpp"
 #include <optional>
 
-#include "base.h"
+#include "base.hpp"
 
 
 namespace cru {
diff --git a/src/format.h b/src/format.hpp
index 51875938..3f6253ff 100644
--- a/src/format.h
+++ b/src/format.hpp
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "base.h"
+#include "base.hpp"
 
 namespace cru
 {
diff --git a/src/global_macros.h b/src/global_macros.hpp
index eda57187..eda57187 100644
--- a/src/global_macros.h
+++ b/src/global_macros.hpp
diff --git a/src/graph/graph.cpp b/src/graph/graph.cpp
index e8d58a58..febb7fee 100644
--- a/src/graph/graph.cpp
+++ b/src/graph/graph.cpp
@@ -1,7 +1,7 @@
-#include "graph.h"
+#include "graph.hpp"
 
-#include "application.h"
-#include "exception.h"
+#include "application.hpp"
+#include "exception.hpp"
 
 namespace cru::graph
 {
diff --git a/src/graph/graph.h b/src/graph/graph.hpp
index ff8b88b8..9ef2e4b8 100644
--- a/src/graph/graph.h
+++ b/src/graph/graph.hpp
@@ -1,10 +1,10 @@
 #pragma once
 
-#include "system_headers.h"
+#include "system_headers.hpp"
 #include <memory>
 
-#include "base.h"
-#include "application.h"
+#include "base.hpp"
+#include "application.hpp"
 
 
 namespace cru::graph
diff --git a/src/main.cpp b/src/main.cpp
index f2e65dd2..264b3c7c 100644
--- a/src/main.cpp
+++ b/src/main.cpp
@@ -1,10 +1,10 @@
-#include "application.h"
-#include "ui/window.h"
-#include "ui/controls/linear_layout.h"
-#include "ui/controls/text_block.h"
-#include "ui/controls/toggle_button.h"
-#include "ui/controls/button.h"
-#include "ui/controls/text_box.h"
+#include "application.hpp"
+#include "ui/window.hpp"
+#include "ui/controls/linear_layout.hpp"
+#include "ui/controls/text_block.hpp"
+#include "ui/controls/toggle_button.hpp"
+#include "ui/controls/button.hpp"
+#include "ui/controls/text_box.hpp"
 
 using cru::String;
 using cru::Application;
diff --git a/src/system_headers.h b/src/system_headers.hpp
index 99c091e1..99c091e1 100644
--- a/src/system_headers.h
+++ b/src/system_headers.hpp
diff --git a/src/timer.cpp b/src/timer.cpp
index 174e9402..3d89d567 100644
--- a/src/timer.cpp
+++ b/src/timer.cpp
@@ -1,6 +1,6 @@
-#include "timer.h"
+#include "timer.hpp"
 
-#include "application.h"
+#include "application.hpp"
 
 namespace cru
 {
diff --git a/src/timer.h b/src/timer.hpp
index 0fac2cdd..5d6e8b71 100644
--- a/src/timer.h
+++ b/src/timer.hpp
@@ -1,13 +1,13 @@
 #pragma once
 
 
-#include "system_headers.h"
+#include "system_headers.hpp"
 #include <map>
 #include <chrono>
 #include <functional>
 #include <optional>
 
-#include "base.h"
+#include "base.hpp"
 
 namespace cru
 {
diff --git a/src/ui/animations/animation.cpp b/src/ui/animations/animation.cpp
index ca0fe8bc..33c743cf 100644
--- a/src/ui/animations/animation.cpp
+++ b/src/ui/animations/animation.cpp
@@ -1,4 +1,4 @@
-#include "animation.h"
+#include "animation.hpp"
 
 #include <utility>
 
diff --git a/src/ui/animations/animation.h b/src/ui/animations/animation.hpp
index 91a666c9..99389f33 100644
--- a/src/ui/animations/animation.h
+++ b/src/ui/animations/animation.hpp
@@ -2,9 +2,9 @@
 
 #include <unordered_map>
 
-#include "base.h"
-#include "application.h"
-#include "timer.h"
+#include "base.hpp"
+#include "application.hpp"
+#include "timer.hpp"
 
 namespace cru::ui::animations
 {
diff --git a/src/ui/border_property.cpp b/src/ui/border_property.cpp
index f716a8be..7f61c1b7 100644
--- a/src/ui/border_property.cpp
+++ b/src/ui/border_property.cpp
@@ -1,6 +1,6 @@
-#include "border_property.h"
+#include "border_property.hpp"
 
-#include "graph/graph.h"
+#include "graph/graph.hpp"
 
 namespace cru::ui
 {
diff --git a/src/ui/border_property.h b/src/ui/border_property.hpp
index ce16dea7..a280fe44 100644
--- a/src/ui/border_property.h
+++ b/src/ui/border_property.hpp
@@ -1,8 +1,8 @@
 #pragma once
 
-#include "system_headers.h"
+#include "system_headers.hpp"
 
-#include "base.h"
+#include "base.hpp"
 
 
 namespace cru::ui
diff --git a/src/ui/control.cpp b/src/ui/control.cpp
index ec8420c1..bb3e35f8 100644
--- a/src/ui/control.cpp
+++ b/src/ui/control.cpp
@@ -1,11 +1,11 @@
-#include "control.h"
+#include "control.hpp"
 
 #include <algorithm>
 
-#include "window.h"
-#include "graph/graph.h"
-#include "exception.h"
-#include "cru_debug.h"
+#include "window.hpp"
+#include "graph/graph.hpp"
+#include "exception.hpp"
+#include "cru_debug.hpp"
 
 namespace cru::ui
 {
diff --git a/src/ui/control.h b/src/ui/control.hpp
index 020f959e..26be653a 100644
--- a/src/ui/control.h
+++ b/src/ui/control.hpp
@@ -1,18 +1,18 @@
 #pragma once
 
-#include "system_headers.h"
+#include "system_headers.hpp"
 #include <unordered_map>
 #include <any>
 #include <typeinfo>
 #include <utility>
 
-#include "base.h"
-#include "format.h"
-#include "ui_base.h"
-#include "layout_base.h"
-#include "events/ui_event.h"
-#include "border_property.h"
-#include "cursor.h"
+#include "base.hpp"
+#include "format.hpp"
+#include "ui_base.hpp"
+#include "layout_base.hpp"
+#include "events/ui_event.hpp"
+#include "border_property.hpp"
+#include "cursor.hpp"
 
 namespace cru::ui
 {
diff --git a/src/ui/controls/button.cpp b/src/ui/controls/button.cpp
index 11f8e31b..0422506b 100644
--- a/src/ui/controls/button.cpp
+++ b/src/ui/controls/button.cpp
@@ -1,6 +1,6 @@
-#include "button.h"
+#include "button.hpp"
 
-#include "graph/graph.h"
+#include "graph/graph.hpp"
 
 namespace cru::ui::controls
 {
diff --git a/src/ui/controls/button.h b/src/ui/controls/button.hpp
index f50a6cbd..50640b11 100644
--- a/src/ui/controls/button.h
+++ b/src/ui/controls/button.hpp
@@ -2,7 +2,7 @@
 
 #include <initializer_list>
 
-#include "ui/control.h"
+#include "ui/control.hpp"
 
 namespace cru::ui::controls
 {
diff --git a/src/ui/controls/linear_layout.cpp b/src/ui/controls/linear_layout.cpp
index ed445f4c..f21a9933 100644
--- a/src/ui/controls/linear_layout.cpp
+++ b/src/ui/controls/linear_layout.cpp
@@ -1,4 +1,4 @@
-#include "linear_layout.h"
+#include "linear_layout.hpp"
 
 #include <algorithm>
 
diff --git a/src/ui/controls/linear_layout.h b/src/ui/controls/linear_layout.hpp
index 021f4b7d..b7ca42ec 100644
--- a/src/ui/controls/linear_layout.h
+++ b/src/ui/controls/linear_layout.hpp
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "ui/control.h"
+#include "ui/control.hpp"
 
 namespace cru::ui::controls
 {
diff --git a/src/ui/controls/text_block.cpp b/src/ui/controls/text_block.cpp
index e6c7fd7e..b8a7e8a6 100644
--- a/src/ui/controls/text_block.cpp
+++ b/src/ui/controls/text_block.cpp
@@ -1,6 +1,6 @@
-#include "text_block.h"
+#include "text_block.hpp"
 
-#include "ui/window.h"
+#include "ui/window.hpp"
 
 namespace cru::ui::controls
 {
diff --git a/src/ui/controls/text_block.h b/src/ui/controls/text_block.hpp
index 681dc47b..b2b4aaf9 100644
--- a/src/ui/controls/text_block.h
+++ b/src/ui/controls/text_block.hpp
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "text_control.h"
+#include "text_control.hpp"
 
 namespace cru::ui::controls
 {
diff --git a/src/ui/controls/text_box.cpp b/src/ui/controls/text_box.cpp
index a132ba67..605e1a24 100644
--- a/src/ui/controls/text_box.cpp
+++ b/src/ui/controls/text_box.cpp
@@ -1,10 +1,10 @@
-#include "text_box.h"
+#include "text_box.hpp"
 
 #include <cwctype>
 #include <cassert>
 
-#include "graph/graph.h"
-#include "exception.h"
+#include "graph/graph.hpp"
+#include "exception.hpp"
 
 namespace cru::ui::controls
 {
diff --git a/src/ui/controls/text_box.h b/src/ui/controls/text_box.hpp
index 85a5942d..434aa232 100644
--- a/src/ui/controls/text_box.h
+++ b/src/ui/controls/text_box.hpp
@@ -1,7 +1,7 @@
 #pragma once
 
-#include "text_control.h"
-#include "timer.h"
+#include "text_control.hpp"
+#include "timer.hpp"
 
 namespace cru::ui::controls
 {
diff --git a/src/ui/controls/text_control.cpp b/src/ui/controls/text_control.cpp
index 6ccb8a02..5d2c840e 100644
--- a/src/ui/controls/text_control.cpp
+++ b/src/ui/controls/text_control.cpp
@@ -1,8 +1,8 @@
-#include "text_control.h"
+#include "text_control.hpp"
 
-#include "ui/window.h"
-#include "graph/graph.h"
-#include "exception.h"
+#include "ui/window.hpp"
+#include "graph/graph.hpp"
+#include "exception.hpp"
 #include <cassert>
 
 namespace cru::ui::controls
diff --git a/src/ui/controls/text_control.h b/src/ui/controls/text_control.hpp
index bfdfe20f..93120a44 100644
--- a/src/ui/controls/text_control.h
+++ b/src/ui/controls/text_control.hpp
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "ui/control.h"
+#include "ui/control.hpp"
 
 namespace cru::ui::controls
 {
diff --git a/src/ui/controls/toggle_button.cpp b/src/ui/controls/toggle_button.cpp
index 9bcd7a26..f35b8bfe 100644
--- a/src/ui/controls/toggle_button.cpp
+++ b/src/ui/controls/toggle_button.cpp
@@ -1,7 +1,7 @@
-#include "toggle_button.h"
+#include "toggle_button.hpp"
 
-#include "graph/graph.h"
-#include "ui/animations/animation.h"
+#include "graph/graph.hpp"
+#include "ui/animations/animation.hpp"
 
 namespace cru::ui::controls
 {
diff --git a/src/ui/controls/toggle_button.h b/src/ui/controls/toggle_button.hpp
index 6f3683de..5de40ca5 100644
--- a/src/ui/controls/toggle_button.h
+++ b/src/ui/controls/toggle_button.hpp
@@ -1,6 +1,6 @@
 #pragma once
 
-#include "ui/control.h"
+#include "ui/control.hpp"
 
 namespace cru::ui::controls
 {
diff --git a/src/ui/cursor.cpp b/src/ui/cursor.cpp
index e1f0e5ef..cf88cd25 100644
--- a/src/ui/cursor.cpp
+++ b/src/ui/cursor.cpp
@@ -1,6 +1,6 @@
-#include "cursor.h"
+#include "cursor.hpp"
 
-#include "exception.h"
+#include "exception.hpp"
 
 namespace cru::ui
 {
diff --git a/src/ui/cursor.h b/src/ui/cursor.hpp
index ccb21d32..e3657171 100644
--- a/src/ui/cursor.h
+++ b/src/ui/cursor.hpp
@@ -1,9 +1,9 @@
 #pragma once
 
-#include "system_headers.h"
+#include "system_headers.hpp"
 #include <memory>
 
-#include "base.h"
+#include "base.hpp"
 
 namespace cru::ui
 {
diff --git a/src/ui/events/ui_event.cpp b/src/ui/events/ui_event.cpp
index 9f5185ce..a1fc3d82 100644
--- a/src/ui/events/ui_event.cpp
+++ b/src/ui/events/ui_event.cpp
@@ -1,6 +1,6 @@
-#include "ui_event.h"
+#include "ui_event.hpp"
 
-#include "ui/control.h"
+#include "ui/control.hpp"
 
 namespace cru::ui::events
 {
diff --git a/src/ui/events/ui_event.h b/src/ui/events/ui_event.hpp
index 24429f04..c0585506 100644
--- a/src/ui/events/ui_event.h
+++ b/src/ui/events/ui_event.hpp
@@ -1,12 +1,12 @@
 #pragma once
 
-#include "system_headers.h"
+#include "system_headers.hpp"
 #include <optional>
 
-#include "base.h"
-#include "cru_event.h"
-#include "ui/ui_base.h"
-#include "ui/layout_base.h"
+#include "base.hpp"
+#include "cru_event.hpp"
+#include "ui/ui_base.hpp"
+#include "ui/layout_base.hpp"
 
 namespace cru::ui
 {
diff --git a/src/ui/layout_base.cpp b/src/ui/layout_base.cpp
index 0ffe3870..a384500a 100644
--- a/src/ui/layout_base.cpp
+++ b/src/ui/layout_base.cpp
@@ -1,8 +1,8 @@
-#include "layout_base.h"
+#include "layout_base.hpp"
 
-#include "application.h"
-#include "control.h"
-#include "window.h"
+#include "application.hpp"
+#include "control.hpp"
+#include "window.hpp"
 
 namespace cru::ui
 {
diff --git a/src/ui/layout_base.h b/src/ui/layout_base.hpp
index b3001268..1c35f0b7 100644
--- a/src/ui/layout_base.h
+++ b/src/ui/layout_base.hpp
@@ -2,8 +2,8 @@
 
 #include <unordered_set>
 
-#include "base.h"
-#include "ui_base.h"
+#include "base.hpp"
+#include "ui_base.hpp"
 
 namespace cru::ui
 {
diff --git a/src/ui/ui_base.cpp b/src/ui/ui_base.cpp
index 0195c588..b52694e7 100644
--- a/src/ui/ui_base.cpp
+++ b/src/ui/ui_base.cpp
@@ -1,6 +1,6 @@
-#include "ui_base.h"
+#include "ui_base.hpp"
 
-#include "system_headers.h"
+#include "system_headers.hpp"
 
 namespace cru::ui
 {
diff --git a/src/ui/ui_base.h b/src/ui/ui_base.hpp
index 8daa43d7..8daa43d7 100644
--- a/src/ui/ui_base.h
+++ b/src/ui/ui_base.hpp
diff --git a/src/ui/window.cpp b/src/ui/window.cpp
index cc08810b..e426bc78 100644
--- a/src/ui/window.cpp
+++ b/src/ui/window.cpp
@@ -1,9 +1,9 @@
-#include "window.h"
+#include "window.hpp"
 
-#include "application.h"
-#include "graph/graph.h"
-#include "exception.h"
-#include "cursor.h"
+#include "application.hpp"
+#include "graph/graph.hpp"
+#include "exception.hpp"
+#include "cursor.hpp"
 
 namespace cru::ui
 {
diff --git a/src/ui/window.h b/src/ui/window.hpp
index 822bf32d..9f773f55 100644
--- a/src/ui/window.h
+++ b/src/ui/window.hpp
@@ -1,12 +1,12 @@
 #pragma once
 
-#include "system_headers.h"
+#include "system_headers.hpp"
 #include <map>
 #include <list>
 #include <memory>
 
-#include "control.h"
-#include "events/ui_event.h"
+#include "control.hpp"
+#include "events/ui_event.hpp"
 
 namespace cru::graph
 {