Platform: minor cleanup, doc++, make cursor LUTs file-local.

src/Magnum/Platform/GlfwApplication.cpp

@@ -605,6 +605,19 @@ int GlfwApplication::exec() {
     return _exitCode;
 }
 
+namespace {
+
+constexpr Int CursorMap[] {
+    GLFW_ARROW_CURSOR,
+    GLFW_IBEAM_CURSOR,
+    GLFW_CROSSHAIR_CURSOR,
+    GLFW_HRESIZE_CURSOR,
+    GLFW_VRESIZE_CURSOR,
+    GLFW_HAND_CURSOR
+};
+
+}
+
 void GlfwApplication::setCursor(Cursor cursor) {
     CORRADE_INTERNAL_ASSERT(UnsignedInt(cursor) < Containers::arraySize(_cursors));
 
@@ -620,18 +633,8 @@ void GlfwApplication::setCursor(Cursor cursor) {
         glfwSetInputMode(_window, GLFW_CURSOR, GLFW_CURSOR_NORMAL);
     }
 
-    if(!_cursors[UnsignedInt(cursor)]) {
-        constexpr Int CursorMap[] {
-            GLFW_ARROW_CURSOR,
-            GLFW_IBEAM_CURSOR,
-            GLFW_CROSSHAIR_CURSOR,
-            GLFW_HRESIZE_CURSOR,
-            GLFW_VRESIZE_CURSOR,
-            GLFW_HAND_CURSOR
-        };
-
+    if(!_cursors[UnsignedInt(cursor)])
         _cursors[UnsignedInt(cursor)] = glfwCreateStandardCursor(CursorMap[UnsignedInt(cursor)]);
-    }
 
     glfwSetCursor(_window, _cursors[UnsignedInt(cursor)]);
 }

src/Magnum/Platform/GlfwApplication.h

@@ -492,7 +492,7 @@ class GlfwApplication {
          *
          * @see @ref setCursor()
          */
-        enum class Cursor : UnsignedInt {
+        enum class Cursor: UnsignedInt {
             Arrow,          /**< Arrow */
             TextInput,      /**< Text input */
             Crosshair,      /**< Crosshair */
@@ -503,15 +503,14 @@ class GlfwApplication {
             HiddenLocked    /**< Hidden and locked */
         };
 
-    public:
         /**
-         * @brief Set the cursor to the @p type
+         * @brief Set cursor type
+         *
+         * Default is @ref Cursor::Arrow.
          */
         void setCursor(Cursor cursor);
 
-        /**
-         * @brief Get the current cursor type
-         */
+        /** @brief Get current cursor type */
         Cursor cursor();
 
         /** @brief Warp mouse cursor to given coordinates */

src/Magnum/Platform/Sdl2Application.cpp

@@ -886,6 +886,25 @@ bool Sdl2Application::mainLoopIteration() {
 }
 
 #ifndef CORRADE_TARGET_EMSCRIPTEN
+namespace {
+
+constexpr SDL_SystemCursor CursorMap[] {
+    SDL_SYSTEM_CURSOR_ARROW,
+    SDL_SYSTEM_CURSOR_IBEAM,
+    SDL_SYSTEM_CURSOR_WAIT,
+    SDL_SYSTEM_CURSOR_CROSSHAIR,
+    SDL_SYSTEM_CURSOR_WAITARROW,
+    SDL_SYSTEM_CURSOR_SIZENWSE,
+    SDL_SYSTEM_CURSOR_SIZENESW,
+    SDL_SYSTEM_CURSOR_SIZEWE,
+    SDL_SYSTEM_CURSOR_SIZENS,
+    SDL_SYSTEM_CURSOR_SIZEALL,
+    SDL_SYSTEM_CURSOR_NO,
+    SDL_SYSTEM_CURSOR_HAND
+};
+
+}
+
 void Sdl2Application::setCursor(Cursor cursor) {
     CORRADE_INTERNAL_ASSERT(UnsignedInt(cursor) < Containers::arraySize(_cursors));
 
@@ -904,24 +923,8 @@ void Sdl2Application::setCursor(Cursor cursor) {
         SDL_SetRelativeMouseMode(SDL_FALSE);
     }
 
-    if(!_cursors[UnsignedInt(cursor)]) {
-        constexpr SDL_SystemCursor CursorMap[] {
-            SDL_SYSTEM_CURSOR_ARROW,
-            SDL_SYSTEM_CURSOR_IBEAM,
-            SDL_SYSTEM_CURSOR_WAIT,
-            SDL_SYSTEM_CURSOR_CROSSHAIR,
-            SDL_SYSTEM_CURSOR_WAITARROW,
-            SDL_SYSTEM_CURSOR_SIZENWSE,
-            SDL_SYSTEM_CURSOR_SIZENESW,
-            SDL_SYSTEM_CURSOR_SIZEWE,
-            SDL_SYSTEM_CURSOR_SIZENS,
-            SDL_SYSTEM_CURSOR_SIZEALL,
-            SDL_SYSTEM_CURSOR_NO,
-            SDL_SYSTEM_CURSOR_HAND
-        };
-
+    if(!_cursors[UnsignedInt(cursor)])
         _cursors[UnsignedInt(cursor)] = SDL_CreateSystemCursor(CursorMap[UnsignedInt(cursor)]);
-    }
 
     SDL_SetCursor(_cursors[UnsignedInt(cursor)]);
 }
@@ -934,10 +937,8 @@ Sdl2Application::Cursor Sdl2Application::cursor() {
 
     SDL_Cursor* cursor = SDL_GetCursor();
 
-    if(cursor)
-        for(UnsignedInt i = 0; i < sizeof(_cursors); i++)
-            if(_cursors[i] == cursor)
-                return Cursor(i);
+    if(cursor) for(UnsignedInt i = 0; i < sizeof(_cursors); i++)
+        if(_cursors[i] == cursor) return Cursor(i);
 
     return Cursor::Arrow;
 }

src/Magnum/Platform/Sdl2Application.h

@@ -838,7 +838,7 @@ class Sdl2Application {
          *
          * @see @ref setCursor()
          */
-        enum class Cursor : UnsignedInt {
+        enum class Cursor: UnsignedInt {
             Arrow,          /**< Arrow */
             TextInput,      /**< Text input */
             Wait,           /**< Wait */
@@ -856,16 +856,15 @@ class Sdl2Application {
         };
         #endif
 
-    public:
         #ifndef CORRADE_TARGET_EMSCRIPTEN
         /**
-         * @brief Set the cursor to the @p type
+         * @brief Set cursor type
+         *
+         * Default is @ref Cursor::Arrow.
          */
         void setCursor(Cursor cursor);
 
-        /**
-         * @brief Get the current cursor type
-         */
+        /** @brief Get current cursor type */
         Cursor cursor();
         #endif