Display mouse cursor icon on maps when Ctrl is held

scwx-qt/gl/geo_texture2d.vert

@@ -43,8 +43,8 @@ vec2 latLngToScreenCoordinate(in vec2 latLng)
 
 void main()
 {
-   // Always set displayed to true
+   // Pass displayed to the geometry shader
-   vsOut.displayed = 1;
+   vsOut.displayed = aDisplayed;
 
    // Pass the threshold and time range to the geometry shader
    vsOut.threshold = aThreshold;

scwx-qt/source/scwx/qt/main/main_window.cpp

@@ -824,6 +824,11 @@ void MainWindowImpl::ConnectMapSignals()
             coordinateLabel_->setText(
                QString("%1, %2").arg(latitude).arg(longitude));
             coordinateLabel_->setVisible(true);
+
+            for (auto& map : maps_)
+            {
+               map->UpdateMouseCoordinate(coordinate);
+            }
          },
          Qt::QueuedConnection);
 

scwx-qt/source/scwx/qt/map/map_context.cpp

@@ -33,6 +33,7 @@ public:
    std::string mapCopyrights_ {};
 
    QMargins           colorTableMargins_ {};
+   common::Coordinate mouseCoordinate_ {};
 
    std::shared_ptr<view::OverlayProductView> overlayProductView_ {nullptr};
    std::shared_ptr<view::RadarProductView>   radarProductView_;
@@ -78,6 +79,11 @@ float MapContext::pixel_ratio() const
    return p->pixelRatio_;
 }
 
+common::Coordinate MapContext::mouse_coordinate() const
+{
+   return p->mouseCoordinate_;
+}
+
 std::shared_ptr<view::OverlayProductView>
 MapContext::overlay_product_view() const
 {
@@ -129,6 +135,11 @@ void MapContext::set_color_table_margins(const QMargins& margins)
    p->colorTableMargins_ = margins;
 }
 
+void MapContext::set_mouse_coordinate(const common::Coordinate& coordinate)
+{
+   p->mouseCoordinate_ = coordinate;
+}
+
 void MapContext::set_overlay_product_view(
    const std::shared_ptr<view::OverlayProductView>& overlayProductView)
 {

scwx-qt/source/scwx/qt/map/map_context.hpp

@@ -2,6 +2,7 @@
 
 #include <scwx/qt/gl/gl_context.hpp>
 #include <scwx/qt/map/map_provider.hpp>
+#include <scwx/common/geographic.hpp>
 #include <scwx/common/products.hpp>
 
 #include <qmaplibre.hpp>
@@ -43,6 +44,7 @@ public:
    MapSettings&                              settings();
    QMargins                                  color_table_margins() const;
    float                                     pixel_ratio() const;
+   common::Coordinate                        mouse_coordinate() const;
    std::shared_ptr<view::OverlayProductView> overlay_product_view() const;
    std::shared_ptr<view::RadarProductView>   radar_product_view() const;
    common::RadarProductGroup                 radar_product_group() const;
@@ -54,6 +56,7 @@ public:
    void set_map_copyrights(const std::string& copyrights);
    void set_map_provider(MapProvider provider);
    void set_color_table_margins(const QMargins& margins);
+   void set_mouse_coordinate(const common::Coordinate& coordinate);
    void set_overlay_product_view(
       const std::shared_ptr<view::OverlayProductView>& overlayProductView);
    void set_pixel_ratio(float pixelRatio);

scwx-qt/source/scwx/qt/map/map_widget.cpp

@@ -940,6 +940,20 @@ void MapWidget::SetMapStyle(const std::string& styleName)
    }
 }
 
+void MapWidget::UpdateMouseCoordinate(const common::Coordinate& coordinate)
+{
+   if (p->context_->mouse_coordinate() != coordinate)
+   {
+      p->context_->set_mouse_coordinate(coordinate);
+
+      if (QGuiApplication::keyboardModifiers() !=
+          Qt::KeyboardModifier::NoModifier)
+      {
+         update();
+      }
+   }
+}
+
 qreal MapWidget::pixelRatio()
 {
    return devicePixelRatioF();

scwx-qt/source/scwx/qt/map/map_widget.hpp

@@ -117,6 +117,13 @@ public:
    void SetInitialMapStyle(const std::string& styleName);
    void SetMapStyle(const std::string& styleName);
 
+   /**
+    * Updates the coordinates associated with mouse movement from another map.
+    *
+    * @param [in] coordinate Coordinate of the mouse
+    */
+   void UpdateMouseCoordinate(const common::Coordinate& coordinate);
+
 private:
    void  changeStyle();
    qreal pixelRatio();

scwx-qt/source/scwx/qt/map/overlay_layer.cpp

@@ -19,6 +19,7 @@
 
 #include <imgui.h>
 #include <QGeoPositionInfo>
+#include <QGuiApplication>
 #include <QMouseEvent>
 
 #if !defined(_MSC_VER)
@@ -114,10 +115,14 @@ public:
       types::GetTextureName(types::ImageTexture::Crosshairs24)};
    std::shared_ptr<gl::draw::GeoIconDrawItem> locationIcon_ {};
 
+   std::shared_ptr<gl::draw::GeoIconDrawItem> cursorIcon_ {};
+
    const std::string& cardinalPointIconName_ {
       types::GetTextureName(types::ImageTexture::CardinalPoint24)};
    const std::string& compassIconName_ {
       types::GetTextureName(types::ImageTexture::Compass24)};
+   const std::string& cursorIconName_ {
+      types::GetTextureName(types::ImageTexture::Dot3)};
    const std::string& mapCenterIconName_ {
       types::GetTextureName(types::ImageTexture::Cursor17)};
 
@@ -177,16 +182,22 @@ void OverlayLayer::Initialize()
 
    // Geo Icons
    p->geoIcons_->StartIconSheets();
+   p->geoIcons_->AddIconSheet(p->cursorIconName_);
    p->geoIcons_->AddIconSheet(p->locationIconName_);
    p->geoIcons_->FinishIconSheets();
 
    p->geoIcons_->StartIcons();
+
+   p->cursorIcon_ = p->geoIcons_->AddIcon();
+   p->geoIcons_->SetIconTexture(p->cursorIcon_, p->cursorIconName_, 0);
+
    p->locationIcon_ = p->geoIcons_->AddIcon();
    p->geoIcons_->SetIconTexture(p->locationIcon_, p->locationIconName_, 0);
    p->geoIcons_->SetIconAngle(p->locationIcon_,
                               units::angle::degrees<double> {45.0});
    p->geoIcons_->SetIconLocation(
       p->locationIcon_, coordinate.latitude(), coordinate.longitude());
+
    p->geoIcons_->FinishIcons();
 
    // Icons
@@ -326,8 +337,20 @@ void OverlayLayer::Render(const QMapLibre::CustomLayerRenderParameters& params)
       p->activeBoxInner_->SetBorder(1.0f * pixelRatio, {255, 255, 255, 255});
    }
 
+   // Cursor Icon
+   bool cursorIconVisible = QGuiApplication::keyboardModifiers() &
+                            Qt::KeyboardModifier::ControlModifier;
+   p->geoIcons_->SetIconVisible(p->cursorIcon_, cursorIconVisible);
+   if (cursorIconVisible)
+   {
+      common::Coordinate mouseCoordinate = context()->mouse_coordinate();
+      p->geoIcons_->SetIconLocation(
+         p->cursorIcon_, mouseCoordinate.latitude_, mouseCoordinate.longitude_);
+   }
+
    // Location Icon
-   p->geoIcons_->SetVisible(p->currentPosition_.isValid() &&
+   p->geoIcons_->SetIconVisible(p->locationIcon_,
+                                p->currentPosition_.isValid() &&
                                    p->positionManager_->IsLocationTracked());
 
    // Compass Icon