Add placefile layer with text rendering

scwx-qt/scwx-qt.cmake

@@ -86,6 +86,7 @@ set(HDR_MAP source/scwx/qt/map/alert_layer.hpp
             source/scwx/qt/map/map_settings.hpp
             source/scwx/qt/map/map_widget.hpp
             source/scwx/qt/map/overlay_layer.hpp
+            source/scwx/qt/map/placefile_layer.hpp
             source/scwx/qt/map/radar_product_layer.hpp
             source/scwx/qt/map/radar_range_layer.hpp)
 set(SRC_MAP source/scwx/qt/map/alert_layer.cpp
@@ -97,6 +98,7 @@ set(SRC_MAP source/scwx/qt/map/alert_layer.cpp
             source/scwx/qt/map/map_provider.cpp
             source/scwx/qt/map/map_widget.cpp
             source/scwx/qt/map/overlay_layer.cpp
+            source/scwx/qt/map/placefile_layer.cpp
             source/scwx/qt/map/radar_product_layer.cpp
             source/scwx/qt/map/radar_range_layer.cpp)
 set(HDR_MODEL source/scwx/qt/model/alert_model.hpp

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

@@ -7,6 +7,7 @@
 #include <scwx/qt/map/layer_wrapper.hpp>
 #include <scwx/qt/map/map_provider.hpp>
 #include <scwx/qt/map/overlay_layer.hpp>
+#include <scwx/qt/map/placefile_layer.hpp>
 #include <scwx/qt/map/radar_product_layer.hpp>
 #include <scwx/qt/map/radar_range_layer.hpp>
 #include <scwx/qt/model/imgui_context_model.hpp>
@@ -61,6 +62,7 @@ public:
        radarProductLayer_ {nullptr},
        alertLayer_ {std::make_shared<AlertLayer>(context_)},
        overlayLayer_ {nullptr},
+       placefileLayer_ {nullptr},
        colorTableLayer_ {nullptr},
        autoRefreshEnabled_ {true},
        autoUpdateEnabled_ {true},
@@ -147,6 +149,7 @@ public:
    std::shared_ptr<RadarProductLayer> radarProductLayer_;
    std::shared_ptr<AlertLayer>        alertLayer_;
    std::shared_ptr<OverlayLayer>      overlayLayer_;
+   std::shared_ptr<PlacefileLayer>    placefileLayer_;
    std::shared_ptr<ColorTableLayer>   colorTableLayer_;
 
    bool autoRefreshEnabled_;
@@ -698,6 +701,10 @@ void MapWidget::AddLayers()
    }
 
    p->alertLayer_->AddLayers("colorTable");
+
+   p->placefileLayer_ = std::make_shared<PlacefileLayer>(p->context_);
+   p->AddLayer("placefile", p->placefileLayer_);
+
    p->overlayLayer_ = std::make_shared<OverlayLayer>(p->context_);
    p->AddLayer("overlay", p->overlayLayer_);
 }

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

@@ -0,0 +1,104 @@
+#include <scwx/qt/map/placefile_layer.hpp>
+#include <scwx/util/logger.hpp>
+
+#include <fmt/format.h>
+#include <imgui.h>
+
+namespace scwx
+{
+namespace qt
+{
+namespace map
+{
+
+static const std::string logPrefix_ = "scwx::qt::map::placefile_layer";
+static const auto        logger_    = scwx::util::Logger::Create(logPrefix_);
+
+class PlacefileLayer::Impl
+{
+public:
+   explicit Impl(std::shared_ptr<MapContext> context) {};
+   ~Impl() = default;
+
+   void RenderText(const std::string&        text,
+                   const std::string&        hoverText,
+                   boost::gil::rgba8_pixel_t color,
+                   float                     x,
+                   float                     y);
+
+   std::uint32_t textId_ {};
+};
+
+PlacefileLayer::PlacefileLayer(std::shared_ptr<MapContext> context) :
+    DrawLayer(context), p(std::make_unique<PlacefileLayer::Impl>(context))
+{
+}
+
+PlacefileLayer::~PlacefileLayer() = default;
+
+void PlacefileLayer::Initialize()
+{
+   logger_->debug("Initialize()");
+
+   DrawLayer::Initialize();
+}
+
+void PlacefileLayer::Impl::RenderText(const std::string&        text,
+                                      const std::string&        hoverText,
+                                      boost::gil::rgba8_pixel_t color,
+                                      float                     x,
+                                      float                     y)
+{
+   const std::string windowName {fmt::format("PlacefileText-{}", ++textId_)};
+
+   // Setup "window" to hold text
+   ImGui::SetNextWindowPos(
+      ImVec2 {x, y}, ImGuiCond_Always, ImVec2 {0.5f, 0.5f});
+   ImGui::Begin(windowName.c_str(),
+                nullptr,
+                ImGuiWindowFlags_NoDecoration | ImGuiWindowFlags_NoNav |
+                   ImGuiWindowFlags_NoBackground);
+
+   // Render text
+   ImGui::PushStyleColor(ImGuiCol_Text,
+                         IM_COL32(color[0], color[1], color[2], color[3]));
+   ImGui::TextUnformatted(text.c_str());
+   ImGui::PopStyleColor();
+
+   // Create tooltip for hover text
+   if (!hoverText.empty() && ImGui::IsItemHovered())
+   {
+      ImGui::BeginTooltip();
+      ImGui::TextUnformatted(hoverText.c_str());
+      ImGui::EndTooltip();
+   }
+
+   // End window
+   ImGui::End();
+}
+
+void PlacefileLayer::Render(
+   const QMapLibreGL::CustomLayerRenderParameters& params)
+{
+   gl::OpenGLFunctions& gl = context()->gl();
+
+   DrawLayer::Render(params);
+
+   // Reset text ID per frame
+   p->textId_ = 0;
+
+   // Render text
+
+   SCWX_GL_CHECK_ERROR();
+}
+
+void PlacefileLayer::Deinitialize()
+{
+   logger_->debug("Deinitialize()");
+
+   DrawLayer::Deinitialize();
+}
+
+} // namespace map
+} // namespace qt
+} // namespace scwx

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

@@ -0,0 +1,29 @@
+#pragma once
+
+#include <scwx/qt/map/draw_layer.hpp>
+
+namespace scwx
+{
+namespace qt
+{
+namespace map
+{
+
+class PlacefileLayer : public DrawLayer
+{
+public:
+   explicit PlacefileLayer(std::shared_ptr<MapContext> context);
+   ~PlacefileLayer();
+
+   void Initialize() override final;
+   void Render(const QMapLibreGL::CustomLayerRenderParameters&) override final;
+   void Deinitialize() override final;
+
+private:
+   class Impl;
+   std::unique_ptr<Impl> p;
+};
+
+} // namespace map
+} // namespace qt
+} // namespace scwx