TreeNode, Tables: added ImGuiTreeNodeFlags_LabelSpanAllColumns. (ocor…

…nut#8318, ocornut#3565)

docs/CHANGELOG.txt

@@ -70,6 +70,10 @@ Other changes:
   coordinates.
 - Tables, MultiSelect: Fixed an issue where column width may be mismeasured
   when calling BeginMultiSelect() while inside a table. (#8250)
+- TreeNode, Tables: Added ImGuiTreeNodeFlags_LabelSpanAllColumns to make
+  the label (not only the frame) also spans all columns. This can be useful
+  for table rows where you know nothing else is submitted. (#8318, #3565)
+  Obviously best used with ImGuiTableFlags_NoBordersInBodyUntilResize.
 - Drags: Added ImGuiSliderFlags_NoSpeedTweaks flag to disable keyboard
   modifiers altering the tweak speed. Useful if you want to alter tweak speed
   yourself based on your own logic. (#8223)

imgui.h

@@ -29,7 +29,7 @@
 // Library Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals, e.g. '#if IMGUI_VERSION_NUM >= 12345')
 #define IMGUI_VERSION       "1.91.7 WIP"
-#define IMGUI_VERSION_NUM   19165
+#define IMGUI_VERSION_NUM   19166
 #define IMGUI_HAS_TABLE
 
 /*
@@ -1206,9 +1206,10 @@ enum ImGuiTreeNodeFlags_
     ImGuiTreeNodeFlags_SpanAvailWidth       = 1 << 11,  // Extend hit box to the right-most edge, even if not framed. This is not the default in order to allow adding other items on the same line without using AllowOverlap mode.
     ImGuiTreeNodeFlags_SpanFullWidth        = 1 << 12,  // Extend hit box to the left-most and right-most edges (cover the indent area).
     ImGuiTreeNodeFlags_SpanTextWidth        = 1 << 13,  // Narrow hit box + narrow hovering highlight, will only cover the label text.
-    ImGuiTreeNodeFlags_SpanAllColumns       = 1 << 14,  // Frame will span all columns of its container table (text will still fit in current column)
-    ImGuiTreeNodeFlags_NavLeftJumpsBackHere = 1 << 15,  // (WIP) Nav: left direction may move to this TreeNode() from any of its child (items submitted between TreeNode and TreePop)
+    ImGuiTreeNodeFlags_SpanAllColumns       = 1 << 14,  // Frame will span all columns of its container table (label will still fit in current column)
+    ImGuiTreeNodeFlags_LabelSpanAllColumns  = 1 << 15,  // Label will span all columns of its container table
     //ImGuiTreeNodeFlags_NoScrollOnOpen     = 1 << 16,  // FIXME: TODO: Disable automatic scroll on TreePop() if node got just open and contents is not visible
+    ImGuiTreeNodeFlags_NavLeftJumpsBackHere = 1 << 17,  // (WIP) Nav: left direction may move to this TreeNode() from any of its child (items submitted between TreeNode and TreePop)
     ImGuiTreeNodeFlags_CollapsingHeader     = ImGuiTreeNodeFlags_Framed | ImGuiTreeNodeFlags_NoTreePushOnOpen | ImGuiTreeNodeFlags_NoAutoOpenOnLog,
 
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS

imgui_demo.cpp

@@ -6363,6 +6363,8 @@ static void ShowDemoWindowTables()
         ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanFullWidth",  &tree_node_flags, ImGuiTreeNodeFlags_SpanFullWidth);
         ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanTextWidth",  &tree_node_flags, ImGuiTreeNodeFlags_SpanTextWidth);
         ImGui::CheckboxFlags("ImGuiTreeNodeFlags_SpanAllColumns", &tree_node_flags, ImGuiTreeNodeFlags_SpanAllColumns);
+        ImGui::CheckboxFlags("ImGuiTreeNodeFlags_LabelSpanAllColumns", &tree_node_flags, ImGuiTreeNodeFlags_LabelSpanAllColumns);
+        ImGui::SameLine(); HelpMarker("Useful if you know that you aren't displaying contents in other columns");
 
         HelpMarker("See \"Columns flags\" section to configure how indentation is applied to individual columns.");
         if (ImGui::BeginTable("3ways", 3, flags))

imgui_widgets.cpp

@@ -6532,6 +6532,7 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
     // We vertically grow up to current line height up the typical widget height.
     const float frame_height = ImMax(ImMin(window->DC.CurrLineSize.y, g.FontSize + style.FramePadding.y * 2), label_size.y + padding.y * 2);
     const bool span_all_columns = (flags & ImGuiTreeNodeFlags_SpanAllColumns) != 0 && (g.CurrentTable != NULL);
+    const bool span_all_columns_label = (flags & ImGuiTreeNodeFlags_LabelSpanAllColumns) != 0 && (g.CurrentTable != NULL);
     ImRect frame_bb;
     frame_bb.Min.x = span_all_columns ? window->ParentWorkRect.Min.x : (flags & ImGuiTreeNodeFlags_SpanFullWidth) ? window->WorkRect.Min.x : window->DC.CursorPos.x;
     frame_bb.Min.y = window->DC.CursorPos.y;
@@ -6557,7 +6558,7 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
     bool is_open = TreeNodeUpdateNextOpen(storage_id, flags);
 
     bool is_visible;
-    if (span_all_columns)
+    if (span_all_columns || span_all_columns_label)
     {
         // Modify ClipRect for the ItemAdd(), faster than doing a PushColumnsBackground/PushTableBackgroundChannel for every Selectable..
         const float backup_clip_rect_min_x = window->ClipRect.Min.x;
@@ -6598,7 +6599,7 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
         return is_open;
     }
 
-    if (span_all_columns)
+    if (span_all_columns || span_all_columns_label)
     {
         TablePushBackgroundChannel();
         g.LastItemData.StatusFlags |= ImGuiItemStatusFlags_HasClipRect;
@@ -6751,14 +6752,17 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
                 LogSetNextTextDecoration(">", NULL);
         }
 
-        if (span_all_columns)
+        if (span_all_columns && !span_all_columns_label)
             TablePopBackgroundChannel();
 
         // Label
         if (display_frame)
             RenderTextClipped(text_pos, frame_bb.Max, label, label_end, &label_size);
         else
             RenderText(text_pos, label, label_end, false);
+
+        if (span_all_columns_label)
+            TablePopBackgroundChannel();
     }
 
     if (store_tree_node_stack_data && is_open)