Add the ability to scale th statistics graphs

apps/OpenSpace/main.cpp

@@ -992,6 +992,9 @@ void setSgctDelegateFunctions() {
 
         return mousePosition;
     };
+    sgctDelegate.setStatisticsGraphScale = [](float scale) {
+        sgct::Engine::instance().setStatsGraphScale(scale);
+    };
 }
 
 std::string setWindowConfigPresetForGui(const std::string& labelFromCfgFile,

include/openspace/engine/windowdelegate.h

@@ -124,6 +124,8 @@ struct WindowDelegate {
 
     glm::vec2 (*mousePositionViewportRelative)(const glm::vec2& mousePosition) =
         [](const glm::vec2&) { return glm::vec2(0); };
+
+    void (*setStatisticsGraphScale)(float scale) = [](float) {};
 };
 
 } // namespace openspace

include/openspace/rendering/renderengine.h

@@ -187,6 +187,7 @@ private:
     properties::IntListProperty _screenshotWindowIds;
     properties::BoolProperty _applyWarping;
     properties::BoolProperty _showStatistics;
+    properties::FloatProperty _statisticsScale;
     properties::BoolProperty _screenshotUseDate;
     properties::BoolProperty _showFrameInformation;
     properties::BoolProperty _disableMasterRendering;

src/rendering/renderengine.cpp

@@ -146,6 +146,15 @@ namespace {
         openspace::properties::Property::Visibility::AdvancedUser
     };
 
+    constexpr openspace::properties::Property::PropertyInfo StatisticsScaleInfo = {
+        "StatisticsScale",
+        "Statistics Scale",
+        "This value is scaling the statatistics window by the provided amount. For flat "
+        "projections this is rarely necessary, but it is important when using a setup "
+        "where the cornders of the image are masked out.",
+        openspace::properties::Property::Visibility::AdvancedUser
+    };
+
     constexpr openspace::properties::Property::PropertyInfo ScreenshotUseDateInfo = {
         "ScreenshotUseDate",
         "Screenshot Folder uses Date",
@@ -313,6 +322,7 @@ RenderEngine::RenderEngine()
     , _screenshotWindowIds(ScreenshotWindowIdsInfo)
     , _applyWarping(ApplyWarpingInfo, false)
     , _showStatistics(ShowStatisticsInfo, false)
+    , _statisticsScale(StatisticsScaleInfo, 1.f, 0.f, 1.f)
     , _screenshotUseDate(ScreenshotUseDateInfo, false)
     , _showFrameInformation(ShowFrameNumberInfo, false)
     , _disableMasterRendering(DisableMasterInfo, false)
@@ -387,9 +397,17 @@ RenderEngine::RenderEngine()
 
     _showStatistics.onChange([this]() {
         global::windowDelegate->showStatistics(_showStatistics);
+        // We need to reset the scale as it is not updated when the statistics window is
+        // not currently shown
+        global::windowDelegate->setStatisticsGraphScale(_statisticsScale);
     });
     addProperty(_showStatistics);
 
+    _statisticsScale.onChange([this]() {
+        global::windowDelegate->setStatisticsGraphScale(_statisticsScale);
+    });
+    addProperty(_statisticsScale);
+
     _screenshotUseDate.onChange([this]() {
         // If there is no screenshot folder, don't bother with handling the change
         if (!FileSys.hasRegisteredToken("${STARTUP_SCREENSHOT}")) {