add support for switching cursor from arrow to reticle

interface/src/Application.cpp

@@ -612,6 +612,7 @@ const float DEFAULT_DESKTOP_TABLET_SCALE_PERCENT = 75.0f;
 const bool DEFAULT_DESKTOP_TABLET_BECOMES_TOOLBAR = true;
 const bool DEFAULT_HMD_TABLET_BECOMES_TOOLBAR = false;
 const bool DEFAULT_PREFER_AVATAR_FINGER_OVER_STYLUS = false;
+const QString DEFAULT_CURSOR_NAME = "DEFAULT";
 
 Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer, bool runningMarkerExisted) :
     QApplication(argc, argv),
@@ -631,6 +632,7 @@ Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer, bo
     _hmdTabletBecomesToolbarSetting("hmdTabletBecomesToolbar", DEFAULT_HMD_TABLET_BECOMES_TOOLBAR),
     _preferAvatarFingerOverStylusSetting("preferAvatarFingerOverStylus", DEFAULT_PREFER_AVATAR_FINGER_OVER_STYLUS),
     _constrainToolbarPosition("toolbar/constrainToolbarToCenterX", true),
+    _preferredCursor("preferredCursor", DEFAULT_CURSOR_NAME),
     _scaleMirror(1.0f),
     _rotateMirror(0.0f),
     _raiseMirror(0.0f),
@@ -928,14 +930,7 @@ Application::Application(int& argc, char** argv, QElapsedTimer& startupTimer, bo
     _glWidget->setFocusPolicy(Qt::StrongFocus);
     _glWidget->setFocus();
 
-#ifdef Q_OS_MAC
+    showCursor(Cursor::Manager::lookupIcon(_preferredCursor.get()));
-    auto cursorTarget = _window; // OSX doesn't seem to provide for hiding the cursor only on the GL widget
-#else
-    // On windows and linux, hiding the top level cursor also means it's invisible when hovering over the
-    // window menu, which is a pain, so only hide it for the GL surface
-    auto cursorTarget = _glWidget;
-#endif
-    cursorTarget->setCursor(Qt::BlankCursor);
 
     // enable mouse tracking; otherwise, we only get drag events
     _glWidget->setMouseTracking(true);
@@ -1700,9 +1695,16 @@ void Application::checkChangeCursor() {
     }
 }
 
-void Application::showCursor(const QCursor& cursor) {
+void Application::showCursor(const Cursor::Icon& cursor) {
     QMutexLocker locker(&_changeCursorLock);
-    _desiredCursor = cursor;
+
+    auto managedCursor = Cursor::Manager::instance().getCursor();
+    auto curIcon = managedCursor->getIcon();
+    if (curIcon != cursor) {
+        managedCursor->setIcon(cursor);
+        curIcon = cursor;
+    }
+    _desiredCursor = cursor == Cursor::Icon::SYSTEM ? Qt::ArrowCursor : Qt::BlankCursor;
     _cursorNeedsChanging = true;
 }
 
@@ -2121,9 +2123,11 @@ void Application::initializeUi() {
     _window->setMenuBar(new Menu());
 
     auto compositorHelper = DependencyManager::get<CompositorHelper>();
-    connect(compositorHelper.data(), &CompositorHelper::allowMouseCaptureChanged, [=] {
+    connect(compositorHelper.data(), &CompositorHelper::allowMouseCaptureChanged, this, [=] {
         if (isHMDMode()) {
-            showCursor(compositorHelper->getAllowMouseCapture() ? Qt::BlankCursor : Qt::ArrowCursor);
+            showCursor(compositorHelper->getAllowMouseCapture() ?
+                       Cursor::Manager::lookupIcon(_preferredCursor.get()) :
+                       Cursor::Icon::SYSTEM);
         }
     });
 
@@ -2426,6 +2430,12 @@ void Application::setPreferAvatarFingerOverStylus(bool value) {
     _preferAvatarFingerOverStylusSetting.set(value);
 }
 
+void Application::setPreferredCursor(const QString& cursorName) {
+    qCDebug(interfaceapp) << "setPreferredCursor" << cursorName;
+    _preferredCursor.set(cursorName.isEmpty() ? DEFAULT_CURSOR_NAME : cursorName);
+    showCursor(Cursor::Manager::lookupIcon(_preferredCursor.get()));
+}
+
 void Application::setSettingConstrainToolbarPosition(bool setting) {
     _constrainToolbarPosition.set(setting);
     DependencyManager::get<OffscreenUi>()->setConstrainToolbarToCenterX(setting);
@@ -2989,9 +2999,13 @@ void Application::keyPressEvent(QKeyEvent* event) {
                     auto cursor = Cursor::Manager::instance().getCursor();
                     auto curIcon = cursor->getIcon();
                     if (curIcon == Cursor::Icon::DEFAULT) {
-                        cursor->setIcon(Cursor::Icon::LINK);
+                        showCursor(Cursor::Icon::RETICLE);
+                    } else if (curIcon == Cursor::Icon::RETICLE) {
+                        showCursor(Cursor::Icon::SYSTEM);
+                    } else if (curIcon == Cursor::Icon::SYSTEM) {
+                        showCursor(Cursor::Icon::LINK);
                     } else {
-                        cursor->setIcon(Cursor::Icon::DEFAULT);
+                        showCursor(Cursor::Icon::DEFAULT);
                     }
                 } else {
                     resetSensors(true);

interface/src/Application.h

@@ -54,6 +54,7 @@
 #include "BandwidthRecorder.h"
 #include "FancyCamera.h"
 #include "ConnectionMonitor.h"
+#include "CursorManager.h"
 #include "gpu/Context.h"
 #include "Menu.h"
 #include "octree/OctreePacketProcessor.h"
@@ -163,7 +164,7 @@ public:
     QSize getDeviceSize() const;
     bool hasFocus() const;
 
-    void showCursor(const QCursor& cursor);
+    void showCursor(const Cursor::Icon& cursor);
 
     bool isThrottleRendering() const;
 
@@ -398,6 +399,9 @@ public slots:
     void loadDomainConnectionDialog();
     void showScriptLogs();
 
+    const QString getPreferredCursor() const { return _preferredCursor.get(); }
+    void setPreferredCursor(const QString& cursor);
+
 private slots:
     void showDesktop();
     void clearDomainOctreeDetails();
@@ -562,6 +566,7 @@ private:
     Setting::Handle<bool> _hmdTabletBecomesToolbarSetting;
     Setting::Handle<bool> _preferAvatarFingerOverStylusSetting;
     Setting::Handle<bool> _constrainToolbarPosition;
+    Setting::Handle<QString> _preferredCursor;
 
     float _scaleMirror;
     float _rotateMirror;
@@ -636,7 +641,7 @@ private:
 
     void checkChangeCursor();
     mutable QMutex _changeCursorLock { QMutex::Recursive };
-    QCursor _desiredCursor{ Qt::BlankCursor };
+    Qt::CursorShape _desiredCursor{ Qt::BlankCursor };
     bool _cursorNeedsChanging { false };
 
     QThread* _deadlockWatchdogThread;

interface/src/ui/PreferencesDialog.cpp

@@ -106,6 +106,12 @@ void setupPreferences() {
         auto setter = [](bool value) { qApp->setPreferAvatarFingerOverStylus(value); };
         preferences->addPreference(new CheckPreference(UI_CATEGORY, "Prefer Avatar Finger Over Stylus", getter, setter));
     }
+    {
+        static const QString RETICLE_ICON_NAME = { Cursor::Manager::getIconName(Cursor::Icon::RETICLE) };
+        auto getter = []()->bool { return qApp->getPreferredCursor() == RETICLE_ICON_NAME; };
+        auto setter = [](bool value) { qApp->setPreferredCursor(value ? RETICLE_ICON_NAME : QString()); };
+        preferences->addPreference(new CheckPreference(UI_CATEGORY, "Use reticle cursor instead of arrow", getter, setter));
+    }
 
     // Snapshots
     static const QString SNAPSHOTS { "Snapshots" };

libraries/ui/src/CursorManager.cpp

@@ -31,12 +31,34 @@ namespace Cursor {
         }
     };
 
-    static QMap<uint16_t, QString> ICONS;
+    QMap<uint16_t, QString> Manager::ICON_NAMES {
+        { Icon::SYSTEM, "SYSTEM", },
+        { Icon::DEFAULT, "DEFAULT", },
+        { Icon::LINK, "LINK", },
+        { Icon::ARROW, "ARROW", },
+        { Icon::RETICLE, "RETICLE", },
+    };
+    QMap<uint16_t, QString> Manager::ICONS;
     static uint16_t _customIconId = Icon::USER_BASE;
 
     Manager::Manager() {
-        ICONS[Icon::DEFAULT] = PathUtils::resourcesPath() + "images/arrow.png";
+        ICONS[Icon::SYSTEM] = PathUtils::resourcesPath() + "images/cursor-none.png";
-        ICONS[Icon::LINK] = PathUtils::resourcesPath() + "images/link.png";
+        ICONS[Icon::DEFAULT] = PathUtils::resourcesPath() + "images/cursor-arrow.png";
+        ICONS[Icon::LINK] = PathUtils::resourcesPath() + "images/cursor-link.png";
+        ICONS[Icon::ARROW] = PathUtils::resourcesPath() + "images/cursor-arrow.png";
+        ICONS[Icon::RETICLE] = PathUtils::resourcesPath() + "images/cursor-reticle.png";
+    }
+
+    Icon Manager::lookupIcon(const QString& name) {
+        for (const auto& kv : ICON_NAMES.toStdMap()) {
+            if (kv.second == name) {
+                return static_cast<Icon>(kv.first);
+            }
+        }
+        return Icon::DEFAULT;
+    }
+    const QString& Manager::getIconName(const Icon& icon) {
+        return ICON_NAMES.count(icon) ? ICON_NAMES[icon] : ICON_NAMES[Icon::DEFAULT];
     }
 
     Manager& Manager::instance() {

libraries/ui/src/CursorManager.h

@@ -18,16 +18,18 @@ namespace Cursor {
     };
 
     enum Icon {
+        SYSTEM,
         DEFAULT,
         LINK,
         GRAB,
+        ARROW,
+        RETICLE,
 
         // Add new system cursors here
 
         // User cursors will have ids over this value
         USER_BASE = 0xFF,
     };
-
     class Instance {
     public:
         virtual Source getType() const = 0;
@@ -49,6 +51,11 @@ namespace Cursor {
         uint16_t registerIcon(const QString& path);
         QList<uint16_t> registeredIcons() const;
         const QString& getIconImage(uint16_t icon);
+
+        static QMap<uint16_t, QString> ICONS;
+        static QMap<uint16_t, QString> ICON_NAMES;
+        static Icon lookupIcon(const QString& name);
+        static const QString& getIconName(const Icon& icon);
     private:
         float _scale{ 1.0f };
     };