...

20 files changed, 123 insertions, 150 deletions

diff --git a/demos/main/main.cpp b/demos/main/main.cpp
index 21db7dda..d39aef88 100644
--- a/demos/main/main.cpp
+++ b/demos/main/main.cpp
@@ -5,6 +5,7 @@
 #include "cru/ui/controls/flex_layout.hpp"
 #include "cru/ui/controls/stack_layout.hpp"
 #include "cru/ui/controls/text_block.hpp"
+#include "cru/ui/controls/text_box.hpp"
 #include "cru/ui/ui_host.hpp"
 #include "cru/ui/window.hpp"
 
@@ -16,6 +17,7 @@ using cru::ui::controls::Button;
 using cru::ui::controls::FlexLayout;
 using cru::ui::controls::StackLayout;
 using cru::ui::controls::TextBlock;
+using cru::ui::controls::TextBox;
 
 int main() {
 #ifdef CRU_DEBUG
diff --git a/include/cru/common/format.hpp b/include/cru/common/format.hpp
deleted file mode 100644
index 4276880e..00000000
--- a/include/cru/common/format.hpp
+++ /dev/null
@@ -1,97 +0,0 @@
-#pragma once
-#include "pre_config.hpp"
-
-#include <sstream>
-#include <string>
-#include <string_view>
-
-namespace cru::util {
-namespace details {
-template <typename TChar>
-struct FormatTrait {};
-
-template <>
-struct FormatTrait<char> {
-  using StringType = std::string;
-  using ViewType = std::string_view;
-  using StreamType = std::stringstream;
-  static constexpr ViewType placeholder = "{}";
-};
-
-template <>
-struct FormatTrait<wchar_t> {
-  using StringType = std::wstring;
-  using ViewType = std::wstring_view;
-  using StreamType = std::wstringstream;
-  static constexpr ViewType placeholder = L"{}";
-};
-}  // namespace details
-
-template <typename TFormatTrait, typename T>
-struct Formatter {
-  static typename TFormatTrait::StringType Format(const T& value) {
-    typename TFormatTrait::StreamType stream;
-    stream << value;
-    return stream.str();
-  }
-};
-
-namespace details {
-template <typename TString>
-void FormatInternal(TString& string) {
-  using Trait = FormatTrait<TString::value_type>;
-  constexpr const auto& placeholder = Trait::placeholder;
-
-  const auto find_result = string.find(placeholder);
-  if (find_result != TString::npos)
-    throw std::invalid_argument("There is more placeholders than args.");
-}
-
-template <typename TString, typename T, typename... TRest>
-void FormatInternal(TString& string, const T& arg, const TRest&... args) {
-  using Trait = FormatTrait<TString::value_type>;
-  constexpr const auto& placeholder = Trait::placeholder;
-
-  const auto find_result = string.find(placeholder);
-  if (find_result == TString::npos)
-    throw std::invalid_argument("There is less placeholders than args.");
-
-  string.replace(find_result, 2, Formatter<Trait, T>::Format(arg));
-  FormatInternal<TString>(string, args...);
-}
-}  // namespace details
-
-template <typename... T>
-std::wstring Format(std::wstring format, const T&... args) {
-  details::FormatInternal(format, args...);
-  return format;
-}
-
-template <typename... T>
-std::string Format(std::string format, const T&... args) {
-  details::FormatInternal(format, args...);
-  return format;
-}
-
-// Why is two overloads below exist?
-// Because people should be able to pass string_view instance as format.
-// However, the two overloads above do not accept string_view as format due to
-// conversion from string_view to string is explicit.
-//
-// Why not just overload but SFINAE?
-// Because I want to make two overloads below worse than the two ones above.
-// Otherwise it will be ambiguous when pass const char* as format.
-//
-
-template <typename T, typename... TArgs>
-auto Format(T format, const TArgs&... args)
-    -> std::enable_if_t<std::is_same_v<T, std::wstring_view>, std::wstring> {
-  return Format(std::wstring{format}, args...);
-}
-
-template <typename T, typename... TArgs>
-auto Format(T format, const TArgs&... args)
-    -> std::enable_if_t<std::is_same_v<T, std::string_view>, std::string> {
-  return Format(std::string{format}, args...);
-}
-}  // namespace cru::util
diff --git a/include/cru/common/logger.hpp b/include/cru/common/logger.hpp
index 38ddb6eb..ab3f2250 100644
--- a/include/cru/common/logger.hpp
+++ b/include/cru/common/logger.hpp
@@ -1,8 +1,8 @@
 #pragma once
-
 #include "cru/common/base.hpp"
-#include "cru/common/format.hpp"
 
+#include <fmt/format.h>
+#include <fmt/ostream.h>
 #include <iostream>
 #include <list>
 #include <memory>
@@ -68,25 +68,25 @@ template <typename... TArgs>
 void Debug([[maybe_unused]] TArgs&&... args) {
 #ifdef CRU_DEBUG
   Logger::GetInstance()->Log(LogLevel::Debug,
-                             util::Format(std::forward<TArgs>(args)...));
+                             fmt::format(std::forward<TArgs>(args)...));
 #endif
 }
 
 template <typename... TArgs>
 void Info(TArgs&&... args) {
   Logger::GetInstance()->Log(LogLevel::Info,
-                             util::Format(std::forward<TArgs>(args)...));
+                             fmt::format(std::forward<TArgs>(args)...));
 }
 
 template <typename... TArgs>
 void Warn(TArgs&&... args) {
   Logger::GetInstance()->Log(LogLevel::Warn,
-                             util::Format(std::forward<TArgs>(args)...));
+                             fmt::format(std::forward<TArgs>(args)...));
 }
 
 template <typename... TArgs>
 void Error(TArgs&&... args) {
   Logger::GetInstance()->Log(LogLevel::Error,
-                             util::Format(std::forward<TArgs>(args)...));
+                             fmt::format(std::forward<TArgs>(args)...));
 }
 }  // namespace cru::log
diff --git a/include/cru/platform/check.hpp b/include/cru/platform/check.hpp
index 6128fe5a..6e353afb 100644
--- a/include/cru/platform/check.hpp
+++ b/include/cru/platform/check.hpp
@@ -1,8 +1,8 @@
 #pragma once
-#include "cru/common/format.hpp"
 #include "exception.hpp"
 #include "resource.hpp"
 
+#include <fmt/format.h>
 #include <memory>
 #include <type_traits>
 
@@ -13,7 +13,7 @@ TTarget* CheckPlatform(INativeResource* resource,
   Expects(resource);
   const auto result = dynamic_cast<TTarget*>(resource);
   if (result == nullptr) {
-    throw UnsupportPlatformException(util::Format(
+    throw UnsupportPlatformException(fmt::format(
         "Try to convert resource to target platform failed. Platform id of "
         "resource to convert: {} . Target platform id: {} .",
         resource->GetPlatformId(), target_platform));
@@ -30,7 +30,7 @@ std::shared_ptr<TTarget> CheckPlatform(
   Expects(resource);
   const auto result = std::dynamic_pointer_cast<TTarget>(resource);
   if (result == nullptr) {
-    throw UnsupportPlatformException(util::Format(
+    throw UnsupportPlatformException(fmt::format(
         "Try to convert resource to target platform failed. Platform id of "
         "resource to convert: {} . Target platform id: {} .",
         resource->GetPlatformId(), target_platform));
diff --git a/include/cru/platform/graph/painter.hpp b/include/cru/platform/graph/painter.hpp
index 1f4ab7cb..b6eb5452 100644
--- a/include/cru/platform/graph/painter.hpp
+++ b/include/cru/platform/graph/painter.hpp
@@ -20,6 +20,10 @@ struct IPainter : virtual INativeResource {
   virtual void DrawText(const Point& offset, ITextLayout* text_layout,
                         IBrush* brush) = 0;
 
+  virtual void PushLayer(const Rect& bounds) = 0;
+
+  virtual void PopLayer() = 0;
+
   virtual void EndDraw() = 0;
 };
 }  // namespace cru::platform::graph
diff --git a/include/cru/ui/control.hpp b/include/cru/ui/control.hpp
index 30dc589a..d66405e6 100644
--- a/include/cru/ui/control.hpp
+++ b/include/cru/ui/control.hpp
@@ -147,12 +147,6 @@ class Control : public Object {
  private:
   bool is_mouse_over_ = false;
 
-  struct {
-    bool left;
-    bool middle;
-    bool right;
-  } click_map_;
-
   std::shared_ptr<platform::native::ICursor> cursor_ = nullptr;
 };
 }  // namespace cru::ui
diff --git a/include/cru/ui/controls/text_box.hpp b/include/cru/ui/controls/text_box.hpp
index c0160658..15fcb734 100644
--- a/include/cru/ui/controls/text_box.hpp
+++ b/include/cru/ui/controls/text_box.hpp
@@ -2,6 +2,8 @@
 #include "../no_child_control.hpp"
 #include "base.hpp"
 
+#include <memory>
+
 namespace cru::ui::controls {
 template <typename TControl>
 class TextControlService;
@@ -10,6 +12,8 @@ class TextBox : public NoChildControl {
  public:
   static constexpr std::string_view control_type = "TextBox";
 
+  static TextBox* Create() { return new TextBox(); }
+
  protected:
   TextBox();
 
@@ -21,6 +25,8 @@ class TextBox : public NoChildControl {
 
   std::string_view GetControlType() const final { return control_type; }
 
+  render::RenderObject* GetRenderObject() const override;
+
   render::TextRenderObject* GetTextRenderObject();
 
   const TextBoxBorderStyle& GetBorderStyle();
diff --git a/include/cru/ui/render/scroll_render_object.hpp b/include/cru/ui/render/scroll_render_object.hpp
new file mode 100644
index 00000000..1527db6c
--- /dev/null
+++ b/include/cru/ui/render/scroll_render_object.hpp
@@ -0,0 +1,30 @@
+#pragma once
+#include "render_object.hpp"
+
+#include "cru/platform/graph/util/painter.hpp"
+
+namespace cru::ui::render {
+class ScrollRenderObject : public RenderObject {
+ public:
+  ScrollRenderObject() : RenderObject(ChildMode::Single) {}
+
+  CRU_DELETE_COPY(ScrollRenderObject)
+  CRU_DELETE_MOVE(ScrollRenderObject)
+
+  ~ScrollRenderObject() override = default;
+
+  void Draw(platform::graph::IPainter* painter) override;
+
+  RenderObject* HitTest(const Point& point) override;
+
+  Point GetScrollOffset() { return scroll_offset_; }
+  void SetScrollOffset(const Point& offset);
+
+ protected:
+  void OnAddChild(RenderObject* new_child, Index position) override;
+  void OnRemoveChild(RenderObject* removed_child, Index position) override;
+
+ private:
+  Point scroll_offset_;
+};
+}  // namespace cru::ui::render
diff --git a/include/cru/win/graph/direct/painter.hpp b/include/cru/win/graph/direct/painter.hpp
index 5a1fe03f..4f2164c9 100644
--- a/include/cru/win/graph/direct/painter.hpp
+++ b/include/cru/win/graph/direct/painter.hpp
@@ -4,6 +4,8 @@
 
 #include "cru/platform/graph/painter.hpp"
 
+#include <vector>
+
 namespace cru::platform::graph::win::direct {
 class D2DPainter : public DirectResource,
                    public virtual IPainter,
@@ -35,6 +37,10 @@ class D2DPainter : public DirectResource,
   void DrawText(const Point& offset, ITextLayout* text_layout,
                 IBrush* brush) override;
 
+  void PushLayer(const Rect& bounds) override;
+
+  void PopLayer() override;
+
   void EndDraw() override final;
 
  protected:
@@ -47,6 +53,8 @@ class D2DPainter : public DirectResource,
  private:
   ID2D1RenderTarget* render_target_;
 
+  std::vector<Microsoft::WRL::ComPtr<ID2D1Layer>> layers_;
+
   bool is_drawing_ = true;
 };
 }  // namespace cru::platform::graph::win::direct
diff --git a/src/common/CMakeLists.txt b/src/common/CMakeLists.txt
index 6e621bf1..43d1dedb 100644
--- a/src/common/CMakeLists.txt
+++ b/src/common/CMakeLists.txt
@@ -6,7 +6,6 @@ target_sources(cru_base PUBLIC
 	${CRU_BASE_INCLUDE_DIR}/base.hpp
 	${CRU_BASE_INCLUDE_DIR}/bitmask.hpp
 	${CRU_BASE_INCLUDE_DIR}/event.hpp
-	${CRU_BASE_INCLUDE_DIR}/format.hpp
 	${CRU_BASE_INCLUDE_DIR}/logger.hpp
 	${CRU_BASE_INCLUDE_DIR}/pre_config.hpp
 	${CRU_BASE_INCLUDE_DIR}/self_resolvable.hpp
@@ -14,5 +13,6 @@ target_sources(cru_base PUBLIC
 target_include_directories(cru_base PUBLIC ${CRU_INCLUDE_DIR})
 target_compile_definitions(cru_base PUBLIC $<$<CONFIG:Debug>:CRU_DEBUG>)
 
-find_path(GSL_INCLUDE_DIR NAMES gsl PATH_SUFFIXES ms-gsl)
-target_include_directories(cru_base PUBLIC ${GSL_INCLUDE_DIR})
+find_package(Microsoft.GSL CONFIG REQUIRED)
+find_package(fmt CONFIG REQUIRED)
+target_link_libraries(cru_base PUBLIC Microsoft.GSL::GSL fmt::fmt)
diff --git a/src/common/logger.cpp b/src/common/logger.cpp
index 6c1422f9..97599b0a 100644
--- a/src/common/logger.cpp
+++ b/src/common/logger.cpp
@@ -1,7 +1,5 @@
 #include "cru/common/logger.hpp"
 
-#include "cru/common/format.hpp"
-
 #include <array>
 #include <cstdlib>
 #include <ctime>
@@ -60,8 +58,8 @@ void Logger::Log(LogLevel level, const std::string_view &s) {
     std::array<char, 50> buffer;
     std::strftime(buffer.data(), 50, "%c", std::localtime(&now));
 
-    source->Write(level, util::Format("[{}] {}: {}\n", buffer.data(),
-                                      LogLevelToString(level), s));
+    source->Write(level, fmt::format("[{}] {}: {}\n", buffer.data(),
+                                     LogLevelToString(level), s));
   }
 }
 }  // namespace cru::log
diff --git a/src/ui/CMakeLists.txt b/src/ui/CMakeLists.txt
index a8fd46a5..777e4fbc 100644
--- a/src/ui/CMakeLists.txt
+++ b/src/ui/CMakeLists.txt
@@ -25,6 +25,7 @@ add_library(cru_ui STATIC
     render/flex_layout_render_object.cpp
     render/layout_utility.cpp
     render/render_object.cpp
+    render/scroll_render_object.cpp
     render/stack_layout_render_object.cpp
     render/text_render_object.cpp
     render/window_render_object.cpp
@@ -54,6 +55,7 @@ target_sources(cru_ui PUBLIC
 	${CRU_UI_INCLUDE_DIR}/render/layout_render_object.hpp
 	${CRU_UI_INCLUDE_DIR}/render/layout_utility.hpp
 	${CRU_UI_INCLUDE_DIR}/render/render_object.hpp
+    ${CRU_UI_INCLUDE_DIR}/render/scroll_render_object.hpp
     ${CRU_UI_INCLUDE_DIR}/render/stack_layout_render_object.hpp
 	${CRU_UI_INCLUDE_DIR}/render/text_render_object.hpp
 	${CRU_UI_INCLUDE_DIR}/render/window_render_object.hpp
diff --git a/src/ui/controls/text_box.cpp b/src/ui/controls/text_box.cpp
index 7b63eea1..8b7dc692 100644
--- a/src/ui/controls/text_box.cpp
+++ b/src/ui/controls/text_box.cpp
@@ -29,6 +29,7 @@ TextBox::TextBox() : border_render_object_(new BorderRenderObject()) {
 
   service_ = std::make_unique<TextControlService<TextBox>>(this);
   service_->SetEnabled(true);
+  service_->SetCaretVisible(true);
 
   GainFocusEvent()->Direct()->AddHandler([this](event::FocusChangeEventArgs&) {
     this->service_->SetEnabled(true);
@@ -43,6 +44,10 @@ TextBox::TextBox() : border_render_object_(new BorderRenderObject()) {
 
 TextBox::~TextBox() {}
 
+render::RenderObject* TextBox::GetRenderObject() const {
+  return border_render_object_.get();
+}
+
 render::TextRenderObject* TextBox::GetTextRenderObject() {
   return text_render_object_.get();
 }
diff --git a/src/ui/controls/text_control_service.hpp b/src/ui/controls/text_control_service.hpp
index 57a6efa7..626423bf 100644
--- a/src/ui/controls/text_control_service.hpp
+++ b/src/ui/controls/text_control_service.hpp
@@ -10,8 +10,7 @@
 #include "cru/ui/ui_event.hpp"
 
 namespace cru::ui::controls {
-constexpr float caret_width = 2;
-constexpr long long caret_blink_duration = 500;
+constexpr int k_default_caret_blink_duration = 500;
 
 // TControl should inherits `Control` and has following methods:
 // ```
@@ -31,14 +30,11 @@ class TextControlService : public Object {
   bool IsEnabled() { return enable_; }
   void SetEnabled(bool enable);
 
-  int GetCaretPosition() { return caret_position_; }
-  void SetCaretPosition(int position) { caret_position_ = position; }
-
   bool IsCaretVisible() { return caret_visible_; }
   void SetCaretVisible(bool visible);
 
-  // please set correct offset before calling this
-  void DrawCaret(platform::graph::IPainter* painter);
+  int GetCaretBlinkDuration() { return caret_blink_duration_; }
+  void SetCaretBlinkDuration(int milliseconds);
 
  private:
   void AbortSelection();
@@ -60,8 +56,8 @@ class TextControlService : public Object {
   bool enable_ = false;
 
   bool caret_visible_ = false;
-  int caret_position_ = 0;
   long long caret_timer_id_ = -1;
+  int caret_blink_duration_ = k_default_caret_blink_duration;
 
   // nullopt means not selecting
   std::optional<MouseButton> select_down_button_;
@@ -105,12 +101,22 @@ void TextControlService<TControl>::SetCaretVisible(bool visible) {
 
   if (this->enable_) {
     if (visible) {
-      this->SetupCaretTimer();
+      this->SetupCaret();
     } else {
-      this->TearDownCaretTimer();
+      this->TearDownCaret();
     }
   }
-}  // namespace cru::ui::controls
+}
+
+template <typename TControl>
+void TextControlService<TControl>::SetCaretBlinkDuration(int milliseconds) {
+  if (this->caret_blink_duration_ == milliseconds) return;
+
+  if (this->enable_ && this->caret_visible_) {
+    this->TearDownCaret();
+    this->SetupCaret();
+  }
+}
 
 template <typename TControl>
 void TextControlService<TControl>::AbortSelection() {
@@ -130,7 +136,7 @@ void TextControlService<TControl>::SetupCaret() {
 
   this->control_->GetTextRenderObject()->SetDrawCaret(true);
   this->caret_timer_id_ = application->SetInterval(
-      std::chrono::milliseconds(caret_blink_duration),
+      std::chrono::milliseconds(this->caret_blink_duration_),
       [this] { this->control_->GetTextRenderObject()->ToggleDrawCaret(); });
 }
 
@@ -169,7 +175,6 @@ void TextControlService<TControl>::MouseMoveHandler(
     const auto result = text_render_object->TextHitTest(
         text_render_object->FromRootToContent(args.GetPoint()));
     const auto position = result.position + (result.trailing ? 1 : 0);
-    this->caret_position_ = position;
     log::Debug(
         "TextControlService: Text selection changed on mouse move, range: {}, "
         "{}.",
@@ -178,6 +183,7 @@ void TextControlService<TControl>::MouseMoveHandler(
         TextRange::FromTwoSides(
             static_cast<unsigned>(position),
             static_cast<unsigned>(this->select_start_position_)));
+    text_render_object->SetCaretPosition(position);
   }
 }
 
@@ -194,6 +200,8 @@ void TextControlService<TControl>::MouseDownHandler(
     const auto result = text_render_object->TextHitTest(
         text_render_object->FromRootToContent(args.GetPoint()));
     const auto position = result.position + (result.trailing ? 1 : 0);
+    text_render_object->SetSelectionRange(std::nullopt);
+    text_render_object->SetCaretPosition(position);
     this->select_start_position_ = position;
     log::Debug("TextControlService: Begin to select text, start position: {}.",
                position);
diff --git a/src/ui/render/scroll_render_object.cpp b/src/ui/render/scroll_render_object.cpp
new file mode 100644
index 00000000..f77ee636
--- /dev/null
+++ b/src/ui/render/scroll_render_object.cpp
@@ -0,0 +1 @@
+#include "cru/ui/render/scroll_render_object.hpp"
diff --git a/src/win/exception.cpp b/src/win/exception.cpp
index e0f114b5..fde3ec6f 100644
--- a/src/win/exception.cpp
+++ b/src/win/exception.cpp
@@ -1,36 +1,32 @@
 #include "cru/win/exception.hpp"
 
-#include "cru/common/format.hpp"
+#include <fmt/format.h>
+#include <optional>
 
 namespace cru::platform::win {
-using util::Format;
 
 inline std::string HResultMakeMessage(HRESULT h_result,
-                                      const std::string_view* message) {
-  char buffer[20];
-  sprintf_s(buffer, "%#08x", h_result);
-
-  if (message)
-    return Format("HRESULT: {}.\nMessage: {}\n", buffer, *message);
+                                      std::optional<std::string_view> message) {
+  if (message.has_value())
+    return fmt::format(FMT_STRING("HRESULT: {:#08x}. Message: {}"), h_result,
+                       *message);
   else
-    return Format("HRESULT: {}.\n", buffer);
+    return fmt::format(FMT_STRING("HRESULT: {:#08x}."), h_result);
 }
 
 HResultError::HResultError(HRESULT h_result)
-    : PlatformException(HResultMakeMessage(h_result, nullptr)),
+    : PlatformException(HResultMakeMessage(h_result, std::nullopt)),
       h_result_(h_result) {}
 
 HResultError::HResultError(HRESULT h_result,
                            const std::string_view& additional_message)
-    : PlatformException(HResultMakeMessage(h_result, &additional_message)),
+    : PlatformException(HResultMakeMessage(h_result, additional_message)),
       h_result_(h_result) {}
 
 inline std::string Win32MakeMessage(DWORD error_code,
-                                    const std::string_view& message) {
-  char buffer[20];
-  sprintf_s(buffer, "%#04x", error_code);
-
-  return Format("Last error code: {}.\nMessage: {}\n", buffer, message);
+                                    std::string_view message) {
+  return fmt::format("Last error code: {:#04x}.\nMessage: {}\n", error_code,
+                     message);
 }
 
 Win32Error::Win32Error(const std::string_view& message)
diff --git a/src/win/graph/direct/painter.cpp b/src/win/graph/direct/painter.cpp
index c5150ad4..df0075e0 100644
--- a/src/win/graph/direct/painter.cpp
+++ b/src/win/graph/direct/painter.cpp
@@ -71,6 +71,23 @@ void D2DPainter::DrawText(const Point& offset, ITextLayout* text_layout,
                                  b->GetD2DBrushInterface());
 }
 
+void D2DPainter::PushLayer(const Rect& bounds) {
+  CheckValidation();
+
+  Microsoft::WRL::ComPtr<ID2D1Layer> layer;
+  ThrowIfFailed(render_target_->CreateLayer(&layer));
+
+  render_target_->PushLayer(D2D1::LayerParameters(Convert(bounds)),
+                            layer.Get());
+
+  layers_.push_back(std::move(layer));
+}
+
+void D2DPainter::PopLayer() {
+  render_target_->PopLayer();
+  layers_.pop_back();
+}
+
 void D2DPainter::EndDraw() {
   if (is_drawing_) {
     is_drawing_ = false;
diff --git a/src/win/native/window.cpp b/src/win/native/window.cpp
index bda8e764..bed9a264 100644
--- a/src/win/native/window.cpp
+++ b/src/win/native/window.cpp
@@ -1,6 +1,5 @@
 #include "cru/win/native/window.hpp"
 
-#include "cru/common/format.hpp"
 #include "cru/common/logger.hpp"
 #include "cru/platform/check.hpp"
 #include "cru/win/native/cursor.hpp"
diff --git a/tools/migrate-files.py b/tools/migrate-files.py
new file mode 100644
index 00000000..e69de29b
--- /dev/null
+++ b/tools/migrate-files.py
diff --git a/tools/win_build.py b/tools/win_build.py
index e7890d8d..3d6f0591 100644
--- a/tools/win_build.py
+++ b/tools/win_build.py
@@ -52,7 +52,7 @@ def configure():
         'x64': 'x64'
     }
 
-    subprocess.check_call('vcpkg install gtest:{arch}-windows ms-gsl:{arch}-windows'.format(arch=args.arch),
+    subprocess.check_call('vcpkg install gtest:{arch}-windows fmt:{arch}-windows ms-gsl:{arch}-windows'.format(arch=args.arch),
                           stdout=sys.stdout, stderr=sys.stderr)
 
     # -DCMAKE_EXPORT_COMPILE_COMMANDS=ON