Add custom right-click context menu

implot.cpp

@@ -3236,7 +3236,8 @@ void EndPlot() {
 
 
     // main ctx menu
-    if (can_ctx && plot.Hovered)
+    // if (can_ctx && plot.Hovered) <-- old line // OdehM 2025-02-20
+    if (can_ctx && !ImHasFlag(plot.Flags, ImPlotFlags_NoCentralMenu) && plot.Hovered) // <-- new line // OdehM 2025-02-20
         ImGui::OpenPopup("##PlotContext");
     if (ImGui::BeginPopup("##PlotContext")) {
         ShowPlotContextMenu(plot);
@@ -5890,6 +5891,37 @@ void StyleColorsLight(ImPlotStyle* dst) {
     colors[ImPlotCol_Crosshairs]    = ImVec4(0.00f, 0.00f, 0.00f, 0.50f);
 }
 
+//-----------------------------------------------------------------------------
+// [SECTION] Context Menu	// OdehM 2025-02-20
+//-----------------------------------------------------------------------------
+
+bool BeginCustomContext()
+{
+    ImPlotContext& gp = *GImPlot;
+
+    if (gp.CurrentPlot == nullptr) return false;
+
+    ImPlotPlot &plot  = *gp.CurrentPlot;
+
+    const bool can_ctx = plot.Hovered &&
+                         !plot.Items.Legend.Hovered &&
+                         !plot.ContextLocked && // <-- added
+                         ImGui::IsMouseReleased(ImGuiMouseButton_Right);
+
+    // main ctx menu
+    if (can_ctx)
+        ImGui::OpenPopup("##CustomPlotContext");
+
+    return ImGui::BeginPopup("##CustomPlotContext");
+}
+
+void EndCustomContext(bool include_default)
+{
+    if (include_default)
+        ShowPlotContextMenu(*(GImPlot->CurrentPlot));
+    ImGui::EndPopup();
+}
+
 //-----------------------------------------------------------------------------
 // [SECTION] Obsolete Functions/Types
 //-----------------------------------------------------------------------------

implot.h

@@ -43,6 +43,7 @@
 // [SECTION] Input Mapping
 // [SECTION] Miscellaneous
 // [SECTION] Demo
+// [SECTION] Context Menu 	// OdehM 2025-02-20
 // [SECTION] Obsolete API
 
 #pragma once
@@ -162,6 +163,7 @@ enum ImPlotFlags_ {
     ImPlotFlags_NoFrame       = 1 << 6,  // the ImGui frame will not be rendered
     ImPlotFlags_Equal         = 1 << 7,  // x and y axes pairs will be constrained to have the same units/pixel
     ImPlotFlags_Crosshairs    = 1 << 8,  // the default mouse cursor will be replaced with a crosshair when hovered
+	ImPlotFlags_NoCentralMenu = 1 << 9,  // disable the central menu, but allow other menus (such as legends and axis) 	// OdehM 2025_02_20
     ImPlotFlags_CanvasOnly    = ImPlotFlags_NoTitle | ImPlotFlags_NoLegend | ImPlotFlags_NoMenus | ImPlotFlags_NoBoxSelect | ImPlotFlags_NoMouseText
 };
 
@@ -1274,7 +1276,7 @@ IMPLOT_API void BustColorCache(const char* plot_title_id = nullptr);
 //-----------------------------------------------------------------------------
 // [SECTION] Input Mapping
 //-----------------------------------------------------------------------------
-    
+
 // Provides access to input mapping structure for permanent modifications to controls for pan, select, etc.
 IMPLOT_API ImPlotInputMap& GetInputMap();
 
@@ -1319,6 +1321,15 @@ IMPLOT_API void ShowMetricsWindow(bool* p_popen = nullptr);
 // Shows the ImPlot demo window (add implot_demo.cpp to your sources!)
 IMPLOT_API void ShowDemoWindow(bool* p_open = nullptr);
 
+//-----------------------------------------------------------------------------
+// [SECTION] Context Menu 	// OdehM 2025-02-20
+//-----------------------------------------------------------------------------
+
+// Begin a custom central plot context menu
+IMPLOT_API bool BeginCustomContext();
+// End a custom central plot context menu
+IMPLOT_API void EndCustomContext(bool include_default = false); // if include_default is true, the normal context menu will be appended
+
 }  // namespace ImPlot
 
 //-----------------------------------------------------------------------------

implot_items.cpp

@@ -3015,6 +3015,7 @@ void PlotDigitalEx(const char* label_id, Getter getter, const ImPlotSpec& spec)
                 // do not extend plot outside plot range
                 pMin.x = ImClamp(pMin.x, !x_axis.IsInverted() ? x_axis.PixelMin : x_axis.PixelMax, !x_axis.IsInverted() ? x_axis.PixelMax - 1 : x_axis.PixelMin - 1);
                 pMax.x = ImClamp(pMax.x, !x_axis.IsInverted() ? x_axis.PixelMin : x_axis.PixelMax, !x_axis.IsInverted() ? x_axis.PixelMax - 1 : x_axis.PixelMin - 1);
+
                 //plot a rectangle that extends up to x2 with y1 height
                 if ((gp.CurrentPlot->PlotRect.Contains(pMin) || gp.CurrentPlot->PlotRect.Contains(pMax))) {
                     // ImVec4 colAlpha = item->Color;