Hide mouse pointer when closing the UI.

Author: kblaschke

src/RenderLoop.cpp

@@ -172,6 +172,7 @@ void RenderLoop::KeyEvent(const SDL_KeyboardEvent& event, bool down)
     {
         case SDLK_ESCAPE:
             _projectMGui.Toggle();
+            _sdlRenderingWindow.ShowCursor(_projectMGui.Visible());
             break;
 
         case SDLK_a: {

src/SDLRenderingWindow.cpp

@@ -111,6 +111,11 @@ void SDLRenderingWindow::Windowed()
     _fullscreen = false;
 }
 
+void SDLRenderingWindow::ShowCursor(bool visible)
+{
+    SDL_ShowCursor(visible);
+}
+
 void SDLRenderingWindow::NextDisplay()
 {
     auto numDisplays = SDL_GetNumVideoDisplays();

src/SDLRenderingWindow.h

@@ -56,6 +56,12 @@ class SDLRenderingWindow : public Poco::Util::Subsystem
      */
     void Windowed();
 
+    /**
+     * @brief Sets the visibility of the mouse cursor
+     * @param visible true if the cursor should be displayed, false otherwise.
+     */
+    void ShowCursor(bool visible);
+
     /**
      * @brief Moves the current window to the next display.
      *

src/gui/ProjectMGUI.cpp

@@ -125,6 +125,16 @@ void ProjectMGUI::Toggle()
     _visible = !_visible;
 }
 
+void ProjectMGUI::Visible(bool visible)
+{
+    _visible = visible;
+}
+
+bool ProjectMGUI::Visible() const
+{
+    return _visible;
+}
+
 void ProjectMGUI::Draw()
 {
     // Don't render UI at all if there's no need.
@@ -231,4 +241,4 @@ void ProjectMGUI::DisplayToastNotificationHandler(const Poco::AutoPtr<DisplayToa
     {
         _toast = std::make_unique<ToastMessage>(notification->ToastText(), 3.0f);
     }
-}
+}

src/gui/ProjectMGUI.h

@@ -69,6 +69,18 @@ class ProjectMGUI : public Poco::Util::Subsystem
      */
     void Toggle();
 
+    /**
+     * @brief Sets the visibility of the UI.
+     * @param visible true if the UI will be rendered, false if not.
+     */
+    void Visible(bool visible);
+
+    /**
+     * @brief Returns the visibiity of the UI.
+     * @return true if the UI is visible, false if not.
+     */
+    bool Visible() const;
+
     /**
      * @brief Draws the UI, including toasts.
      * If neither a toast nor the UI are visible, this is basically a no-op.