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#include "cru/platform/gui/win/Cursor.h"
#include "cru/common/log/Logger.h"
#include "cru/platform/gui/win/Exception.h"
#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.
CRU_LOG_WARN(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(), u"Failed to load system cursor.");
}
return new WinCursor(handle, false);
}
} // namespace
WinCursorManager::WinCursorManager()
: sys_arrow_(LoadWinCursor(IDC_ARROW)),
sys_hand_(LoadWinCursor(IDC_HAND)),
sys_ibeam_(LoadWinCursor(IDC_IBEAM)) {}
std::shared_ptr<WinCursor> WinCursorManager::GetSystemWinCursor(
SystemCursorType type) {
switch (type) {
case SystemCursorType::Arrow:
return sys_arrow_;
case SystemCursorType::Hand:
return sys_hand_;
case SystemCursorType::IBeam:
return sys_ibeam_;
default:
throw std::runtime_error("Unknown system cursor value.");
}
}
} // namespace cru::platform::gui::win
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