Draw train track icon on thumbnails.

common/lc_thumbnailmanager.cpp

@@ -114,11 +114,17 @@ void lcThumbnailManager::DrawThumbnail(lcPartThumbnailId ThumbnailId, lcPartThum
 	mView->UnbindRenderFramebuffer();
 
 	QImage Image = mView->GetRenderFramebufferImage().convertToFormat(QImage::Format_ARGB32);
+	const char* IconName = nullptr;
 
 	if (Info->GetSynthInfo())
+		IconName = ":/resources/part_flexible.png";
+	else if (Info->GetTrainTrackInfo())
+		IconName = ":/resources/part_traintrack.png";
+	
+	if (IconName)
 	{
 		QPainter Painter(&Image);
-		QImage Icon = QImage(":/resources/flexible.png");
+		QImage Icon = QImage(IconName);
 		uchar* ImageBits = Icon.bits();
 		QRgb TextColor = QApplication::palette().color(QPalette::WindowText).rgba();
 		int Red = qRed(TextColor);

common/lc_traintrack.cpp

@@ -7,7 +7,6 @@
 
 // todo:
 // add cross 32087.dat and auto replace when going over a straight section
-// draw icon on thumbnails
 // detect existing connections
 // new gizmo mesh
 // move config to json

leocad.qrc

@@ -146,7 +146,8 @@
         <file>resources/shaders/unlit_view_sphere_ps.glsl</file>
         <file>resources/shaders/unlit_view_sphere_vs.glsl</file>
         <file>resources/case.png</file>
-        <file>resources/flexible.png</file>
+        <file>resources/part_flexible.png</file>
+        <file>resources/part_traintrack.png</file>
         <file>resources/gear_in.png</file>
     </qresource>
 </RCC>