Tables: added flags to TableDrawContextMenu() in order to display selected sections + added internal table->DisableDefaultContextMenu = true way to submit your own contents.

Amend 088ddef

imgui_internal.h

@@ -2792,6 +2792,7 @@ struct IMGUI_API ImGuiTable
     bool                        IsSortSpecsDirty;
     bool                        IsUsingHeaders;             // Set when the first row had the ImGuiTableRowFlags_Headers flag.
     bool                        IsContextPopupOpen;         // Set when default context menu is open (also see: ContextPopupColumn, InstanceInteracted).
+    bool                        DisableDefaultContextMenu;  // Disable default context menu contents. You may submit your own using TableBeginContextMenuPopup()/EndPopup()
     bool                        IsSettingsRequestLoad;
     bool                        IsSettingsDirty;            // Set when table settings have changed and needs to be reported into ImGuiTableSetttings data.
     bool                        IsDefaultDisplayOrder;      // Set when display order is unchanged from default (DisplayOrder contains 0...Count-1)
@@ -3210,7 +3211,7 @@ namespace ImGui
     IMGUI_API void          TableUpdateBorders(ImGuiTable* table);
     IMGUI_API void          TableUpdateColumnsWeightFromWidth(ImGuiTable* table);
     IMGUI_API void          TableDrawBorders(ImGuiTable* table);
-    IMGUI_API void          TableDrawContextMenu(ImGuiTable* table);
+    IMGUI_API void          TableDrawContextMenu(ImGuiTable* table, ImGuiTableFlags flags_for_section_to_display);
     IMGUI_API bool          TableBeginContextMenuPopup(ImGuiTable* table);
     IMGUI_API void          TableMergeDrawChannels(ImGuiTable* table);
     inline ImGuiTableInstanceData*  TableGetInstanceData(ImGuiTable* table, int instance_no) { if (instance_no == 0) return &table->InstanceDataFirst; return &table->InstanceDataExtra[instance_no - 1]; }

imgui_tables.cpp

@@ -48,7 +48,8 @@ Index of this file:
 // - TableUpdateLayout() [Internal]             followup to BeginTable(): setup everything: widths, columns positions, clipping rectangles. Automatically called by the FIRST call to TableNextRow() or TableHeadersRow().
 //    | TableSetupDrawChannels()                - setup ImDrawList channels
 //    | TableUpdateBorders()                    - detect hovering columns for resize, ahead of contents submission
-//    | TableDrawContextMenu()                  - draw right-click context menu
+//    | TableBeginContextMenuPopup()
+//    | - TableDrawContextMenu()                - draw right-click context menu contents
 //-----------------------------------------------------------------------------
 // - TableHeadersRow() or TableHeader()         user submit a headers row (optional)
 //    | TableSortSpecsClickColumn()             - when left-clicked: alter sort order and sort direction
@@ -1190,10 +1191,14 @@ void ImGui::TableUpdateLayout(ImGuiTable* table)
         if (g.ActiveId == 0 || (table->IsActiveIdInTable || g.DragDropActive))
             table->HighlightColumnHeader = table->HoveredColumnBody;
 
-    // [Part 11] Context menu
-    if (TableBeginContextMenuPopup(table))
+    // [Part 11] Default context menu
+    // - To append to this menu: you can call TableBeginContextMenuPopup()/.../EndPopup().
+    // - To modify or replace this: set table->IsContextPopupNoDefaultContents = true, then call TableBeginContextMenuPopup()/.../EndPopup().
+    // - You may call TableDrawContextMenu() with selected flags to display specific sections of the default menu,
+    //   e.g. TableDrawContextMenu(table, table->Flags & ~ImGuiTableFlags_Hideable) will display everything EXCEPT columns visibility options.
+    if (table->DisableDefaultContextMenu == false && TableBeginContextMenuPopup(table))
     {
-        TableDrawContextMenu(table);
+        TableDrawContextMenu(table, table->Flags);
         EndPopup();
     }
 
@@ -3293,7 +3298,13 @@ bool ImGui::TableBeginContextMenuPopup(ImGuiTable* table)
 
 // Output context menu into current window (generally a popup)
 // FIXME-TABLE: Ideally this should be writable by the user. Full programmatic access to that data?
-void ImGui::TableDrawContextMenu(ImGuiTable* table)
+// Sections to display are pulled from 'flags_for_section_to_display', which is typically == table->Flags.
+// - ImGuiTableFlags_Resizable   -> display Sizing menu items
+// - ImGuiTableFlags_Reorderable -> display "Reset Order"
+////- ImGuiTableFlags_Sortable   -> display sorting options (disabled)
+// - ImGuiTableFlags_Hideable    -> display columns visibility menu items
+// It means if you have a custom context menus you can call this section and omit some sections, and add your own.
+void ImGui::TableDrawContextMenu(ImGuiTable* table, ImGuiTableFlags flags_for_section_to_display)
 {
     ImGuiContext& g = *GImGui;
     ImGuiWindow* window = g.CurrentWindow;
@@ -3305,7 +3316,7 @@ void ImGui::TableDrawContextMenu(ImGuiTable* table)
     ImGuiTableColumn* column = (column_n != -1) ? &table->Columns[column_n] : NULL;
 
     // Sizing
-    if (table->Flags & ImGuiTableFlags_Resizable)
+    if (flags_for_section_to_display & ImGuiTableFlags_Resizable)
     {
         if (column != NULL)
         {
@@ -3325,7 +3336,7 @@ void ImGui::TableDrawContextMenu(ImGuiTable* table)
     }
 
     // Ordering
-    if (table->Flags & ImGuiTableFlags_Reorderable)
+    if (flags_for_section_to_display & ImGuiTableFlags_Reorderable)
     {
         if (MenuItem(LocalizeGetMsg(ImGuiLocKey_TableResetOrder), NULL, false, !table->IsDefaultDisplayOrder))
             table->IsResetDisplayOrderRequest = true;
@@ -3339,7 +3350,7 @@ void ImGui::TableDrawContextMenu(ImGuiTable* table)
     // Sorting
     // (modify TableOpenContextMenu() to add _Sortable flag if enabling this)
 #if 0
-    if ((table->Flags & ImGuiTableFlags_Sortable) && column != NULL && (column->Flags & ImGuiTableColumnFlags_NoSort) == 0)
+    if ((flags_for_section_to_display & ImGuiTableFlags_Sortable) && column != NULL && (column->Flags & ImGuiTableColumnFlags_NoSort) == 0)
     {
         if (want_separator)
             Separator();
@@ -3354,7 +3365,7 @@ void ImGui::TableDrawContextMenu(ImGuiTable* table)
 #endif
 
     // Hiding / Visibility
-    if (table->Flags & ImGuiTableFlags_Hideable)
+    if (flags_for_section_to_display & ImGuiTableFlags_Hideable)
     {
         if (want_separator)
             Separator();