From 6aa2201797a9ed64ce0178215ae941d0c5f09579 Mon Sep 17 00:00:00 2001
From: crupest <crupest@outlook.com>
Date: Fri, 30 Oct 2020 00:07:57 +0800
Subject: ...

---
 src/win/gui/Cursor.cpp | 51 ++++++++++++++++++++++++++++++++++++++++++++++++++
 1 file changed, 51 insertions(+)
 create mode 100644 src/win/gui/Cursor.cpp

(limited to 'src/win/gui/Cursor.cpp')

diff --git a/src/win/gui/Cursor.cpp b/src/win/gui/Cursor.cpp
new file mode 100644
index 00000000..5f3086fa
--- /dev/null
+++ b/src/win/gui/Cursor.cpp
@@ -0,0 +1,51 @@
+#include "cru/win/gui/Cursor.hpp"
+
+#include "cru/common/Logger.hpp"
+#include "cru/win/gui/Exception.hpp"
+
+#include <stdexcept>
+
+namespace cru::platform::gui::win {
+WinCursor::WinCursor(HCURSOR handle, bool auto_destroy) {
+  handle_ = handle;
+  auto_destroy_ = auto_destroy;
+}
+
+WinCursor::~WinCursor() {
+  if (auto_destroy_) {
+    if (!::DestroyCursor(handle_)) {
+      // This is not a fetal error but might still need notice because it may
+      // cause leak.
+      log::TagWarn(log_tag, u"Failed to destroy a cursor. Last error code: {}",
+                   ::GetLastError());
+    }
+  }
+}
+
+namespace {
+WinCursor* LoadWinCursor(const wchar_t* name) {
+  const auto handle = static_cast<HCURSOR>(::LoadImageW(
+      NULL, name, IMAGE_CURSOR, SM_CYCURSOR, SM_CYCURSOR, LR_SHARED));
+  if (handle == NULL) {
+    throw Win32Error(::GetLastError(), "Failed to load system cursor.");
+  }
+  return new WinCursor(handle, false);
+}
+}  // namespace
+
+WinCursorManager::WinCursorManager()
+    : sys_arrow_(LoadWinCursor(IDC_ARROW)),
+      sys_hand_(LoadWinCursor(IDC_HAND)) {}
+
+std::shared_ptr<WinCursor> WinCursorManager::GetSystemWinCursor(
+    SystemCursorType type) {
+  switch (type) {
+    case SystemCursorType::Arrow:
+      return sys_arrow_;
+    case SystemCursorType::Hand:
+      return sys_hand_;
+    default:
+      throw std::runtime_error("Unknown system cursor value.");
+  }
+}
+}  // namespace cru::platform::gui::win
-- 
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