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authorcrupest <crupest@outlook.com>2020-06-28 00:03:11 +0800
committercrupest <crupest@outlook.com>2020-06-28 00:03:11 +0800
commit06d1d0442276a05b6caad6e3468f4afb1e8ee5df (patch)
treeebd46f0fb7343dc57bf947b7b5fffc139c3ddeac /src/win/native/Cursor.cpp
parente11be6caa9ef9b2b198ca61846e32f469627556e (diff)
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Diffstat (limited to 'src/win/native/Cursor.cpp')
-rw-r--r--src/win/native/Cursor.cpp51
1 files changed, 51 insertions, 0 deletions
diff --git a/src/win/native/Cursor.cpp b/src/win/native/Cursor.cpp
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+++ b/src/win/native/Cursor.cpp
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+#include "cru/win/native/Cursor.hpp"
+
+#include "cru/common/Logger.hpp"
+#include "cru/win/native/Exception.hpp"
+
+#include <stdexcept>
+
+namespace cru::platform::native::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::Warn("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::native::win