Impl xcb cursor manager.

1 files changed, 35 insertions, 3 deletions

diff --git a/src/platform/gui/xcb/Cursor.cpp b/src/platform/gui/xcb/Cursor.cpp
index 7bc73f6d..5582c6a6 100644
--- a/src/platform/gui/xcb/Cursor.cpp
+++ b/src/platform/gui/xcb/Cursor.cpp
@@ -1,12 +1,13 @@
 #include "cru/platform/gui/xcb/Cursor.h"
-#include "cru/base/Base.h"
+#include "cru/base/Exception.h"
+#include "cru/platform/gui/Cursor.h"
 #include "cru/platform/gui/xcb/UiApplication.h"
 
 #include <xcb/xcb.h>
+#include <xcb/xcb_cursor.h>
+#include <memory>
 
 namespace cru::platform::gui::xcb {
-XcbCursor* XcbCursor::LoadXCursor(io::Stream* stream) { NotImplemented(); }
-
 XcbCursor::XcbCursor(XcbUiApplication* application, xcb_cursor_t cursor,
                      bool auto_free)
     : application_(application), cursor_(cursor), auto_free_(auto_free) {}
@@ -19,4 +20,35 @@ XcbCursor::~XcbCursor() {
 
 xcb_cursor_t XcbCursor::GetXcbCursor() { return cursor_; }
 
+XcbCursorManager::XcbCursorManager(XcbUiApplication* application)
+    : application_(application) {
+  auto code = xcb_cursor_context_new(application->GetXcbConnection(),
+                                     application->GetFirstXcbScreen(),
+                                     &xcb_cursor_context_);
+  if (code != 0) {
+    throw PlatformException("Failed to call xcb_cursor_context_new.");
+  }
+
+  cursors_[SystemCursorType::Arrow] =
+      std::make_shared<XcbCursor>(application_, XCB_CURSOR_NONE, false);
+  cursors_[SystemCursorType::Hand] = LoadXCursor("pointer");
+  cursors_[SystemCursorType::IBeam] = LoadXCursor("ibeam");
+}
+
+XcbCursorManager::~XcbCursorManager() {
+  xcb_cursor_context_free(xcb_cursor_context_);
+}
+
+std::shared_ptr<ICursor> XcbCursorManager::GetSystemCursor(
+    SystemCursorType type) {
+  return cursors_[type];
+}
+
+std::shared_ptr<XcbCursor> XcbCursorManager::LoadXCursor(
+    std::string_view name) {
+  return std::make_shared<XcbCursor>(
+      application_, xcb_cursor_load_cursor(xcb_cursor_context_, name.data()),
+      true);
+}
+
 }  // namespace cru::platform::gui::xcb