Support changing of the thickness of indivual links using PushStyleVa…

…r(ImNodesStyleVar_LinkThickness, ...). This is a fix for Nelarius#153 .
simonwinkelbach · Dec 7, 2022 · bacd7c3 · bacd7c3
1 parent d88f991
commit bacd7c3
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Showing 2 changed files with 7 additions and 2 deletions.
diff --git a/imnodes.cpp b/imnodes.cpp
@@ -1617,6 +1617,8 @@ void DrawLink(ImNodesEditorContext& editor, const int link_idx)
         link_color = link.ColorStyle.Hovered;
     }
 
+    float link_thickness = link.Thickness;
+
 #if IMGUI_VERSION_NUM < 18000
     GImNodes->CanvasDrawList->AddBezierCurve(
 #else
@@ -1627,7 +1629,7 @@ void DrawLink(ImNodesEditorContext& editor, const int link_idx)
         cubic_bezier.P2,
         cubic_bezier.P3,
         link_color,
-        GImNodes->Style.LinkThickness,
+        link_thickness,
         cubic_bezier.NumSegments);
 }
 
@@ -2611,6 +2613,7 @@ void Link(const int id, const int start_attr_id, const int end_attr_id)
     link.ColorStyle.Base = GImNodes->Style.Colors[ImNodesCol_Link];
     link.ColorStyle.Hovered = GImNodes->Style.Colors[ImNodesCol_LinkHovered];
     link.ColorStyle.Selected = GImNodes->Style.Colors[ImNodesCol_LinkSelected];
+    link.Thickness = GImNodes->Style.LinkThickness;
 
     // Check if this link was created by the current link event
     if ((editor.ClickInteraction.Type == ImNodesClickInteractionType_LinkCreation &&

diff --git a/imnodes_internal.h b/imnodes_internal.h
@@ -194,7 +194,9 @@ struct ImLinkData
         ImU32 Base, Hovered, Selected;
     } ColorStyle;
 
-    ImLinkData(const int link_id) : Id(link_id), StartPinIdx(), EndPinIdx(), ColorStyle() {}
+    float Thickness;
+
+    ImLinkData(const int link_id) : Id(link_id), StartPinIdx(), EndPinIdx(), ColorStyle(), Thickness() {}
 };
 
 struct ImClickInteractionState