Demo tweaks. Moved Tabs to Widgets section. Added to Tables demo. Increased version following 00b35c08.

imgui.h

@@ -59,7 +59,7 @@ Index of this file:
 // Version
 // (Integer encoded as XYYZZ for use in #if preprocessor conditionals. Work in progress versions typically starts at XYY99 then bounce up to XYY00, XYY01 etc. when release tagging happens)
 #define IMGUI_VERSION               "1.80 WIP"
-#define IMGUI_VERSION_NUM           17910
+#define IMGUI_VERSION_NUM           17911
 #define IMGUI_CHECKVERSION()        ImGui::DebugCheckVersionAndDataLayout(IMGUI_VERSION, sizeof(ImGuiIO), sizeof(ImGuiStyle), sizeof(ImVec2), sizeof(ImVec4), sizeof(ImDrawVert), sizeof(ImDrawIdx))
 #define IMGUI_HAS_TABLE
 
@@ -692,7 +692,7 @@ namespace ImGui
     //   Headers are required to perform: reordering, sorting, and opening the context menu (but context menu can also be available in columns body using ImGuiTableFlags_ContextMenuInBody).
     // - You may manually submit headers using TableNextRow() + TableHeader() calls, but this is only useful in some advanced cases (e.g. adding custom widgets in header row).
     // - Use TableSetupScrollFreeze() to lock columns (from the right) or rows (from the top) so they stay visible when scrolled.
-    IMGUI_API void          TableSetupColumn(const char* label, ImGuiTableColumnFlags flags = 0, float init_width_or_weight = -1.0f, ImU32 user_id = 0);
+    IMGUI_API void          TableSetupColumn(const char* label, ImGuiTableColumnFlags flags = 0, float init_width_or_weight = 0.0f, ImU32 user_id = 0);
     IMGUI_API void          TableSetupScrollFreeze(int cols, int rows); // lock columns/rows so they stay visible when scrolled.
     IMGUI_API void          TableHeadersRow();                          // submit all headers cells based on data provided to TableSetupColumn() + submit context menu
     IMGUI_API void          TableHeader(const char* label);             // submit one header cell manually (rarely used)

imgui_demo.cpp

@@ -1352,9 +1352,149 @@ static void ShowDemoWindowWidgets()
         ImGui::TreePop();
     }
 
-    // Plot/Graph widgets are currently fairly limited.
+    // Tabs
-    // Consider writing your own plotting widget, or using a third-party one
+    if (ImGui::TreeNode("Tabs"))
-    // (for third-party Plot widgets, see 'Wiki->Useful Widgets' or https://github.com/ocornut/imgui/labels/plot%2Fgraph)
+    {
+        if (ImGui::TreeNode("Basic"))
+        {
+            ImGuiTabBarFlags tab_bar_flags = ImGuiTabBarFlags_None;
+            if (ImGui::BeginTabBar("MyTabBar", tab_bar_flags))
+            {
+                if (ImGui::BeginTabItem("Avocado"))
+                {
+                    ImGui::Text("This is the Avocado tab!\nblah blah blah blah blah");
+                    ImGui::EndTabItem();
+                }
+                if (ImGui::BeginTabItem("Broccoli"))
+                {
+                    ImGui::Text("This is the Broccoli tab!\nblah blah blah blah blah");
+                    ImGui::EndTabItem();
+                }
+                if (ImGui::BeginTabItem("Cucumber"))
+                {
+                    ImGui::Text("This is the Cucumber tab!\nblah blah blah blah blah");
+                    ImGui::EndTabItem();
+                }
+                ImGui::EndTabBar();
+            }
+            ImGui::Separator();
+            ImGui::TreePop();
+        }
+
+        if (ImGui::TreeNode("Advanced & Close Button"))
+        {
+            // Expose a couple of the available flags. In most cases you may just call BeginTabBar() with no flags (0).
+            static ImGuiTabBarFlags tab_bar_flags = ImGuiTabBarFlags_Reorderable;
+            ImGui::CheckboxFlags("ImGuiTabBarFlags_Reorderable", &tab_bar_flags, ImGuiTabBarFlags_Reorderable);
+            ImGui::CheckboxFlags("ImGuiTabBarFlags_AutoSelectNewTabs", &tab_bar_flags, ImGuiTabBarFlags_AutoSelectNewTabs);
+            ImGui::CheckboxFlags("ImGuiTabBarFlags_TabListPopupButton", &tab_bar_flags, ImGuiTabBarFlags_TabListPopupButton);
+            ImGui::CheckboxFlags("ImGuiTabBarFlags_NoCloseWithMiddleMouseButton", &tab_bar_flags, ImGuiTabBarFlags_NoCloseWithMiddleMouseButton);
+            if ((tab_bar_flags & ImGuiTabBarFlags_FittingPolicyMask_) == 0)
+                tab_bar_flags |= ImGuiTabBarFlags_FittingPolicyDefault_;
+            if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyResizeDown", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyResizeDown))
+                tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyResizeDown);
+            if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyScroll", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyScroll))
+                tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyScroll);
+
+            // Tab Bar
+            const char* names[4] = { "Artichoke", "Beetroot", "Celery", "Daikon" };
+            static bool opened[4] = { true, true, true, true }; // Persistent user state
+            for (int n = 0; n < IM_ARRAYSIZE(opened); n++)
+            {
+                if (n > 0) { ImGui::SameLine(); }
+                ImGui::Checkbox(names[n], &opened[n]);
+            }
+
+            // Passing a bool* to BeginTabItem() is similar to passing one to Begin():
+            // the underlying bool will be set to false when the tab is closed.
+            if (ImGui::BeginTabBar("MyTabBar", tab_bar_flags))
+            {
+                for (int n = 0; n < IM_ARRAYSIZE(opened); n++)
+                    if (opened[n] && ImGui::BeginTabItem(names[n], &opened[n], ImGuiTabItemFlags_None))
+                    {
+                        ImGui::Text("This is the %s tab!", names[n]);
+                        if (n & 1)
+                            ImGui::Text("I am an odd tab.");
+                        ImGui::EndTabItem();
+                    }
+                ImGui::EndTabBar();
+            }
+            ImGui::Separator();
+            ImGui::TreePop();
+        }
+
+        if (ImGui::TreeNode("TabItemButton & Leading/Trailing flags"))
+        {
+            static ImVector<int> active_tabs;
+            static int next_tab_id = 0;
+            if (next_tab_id == 0) // Initialize with some default tabs
+                for (int i = 0; i < 3; i++)
+                    active_tabs.push_back(next_tab_id++);
+
+            // TabItemButton() and Leading/Trailing flags are distinct features which we will demo together.
+            // (It is possible to submit regular tabs with Leading/Trailing flags, or TabItemButton tabs without Leading/Trailing flags...
+            // but they tend to make more sense together)
+            static bool show_leading_button = true;
+            static bool show_trailing_button = true;
+            ImGui::Checkbox("Show Leading TabItemButton()", &show_leading_button);
+            ImGui::Checkbox("Show Trailing TabItemButton()", &show_trailing_button);
+
+            // Expose some other flags which are useful to showcase how they interact with Leading/Trailing tabs
+            static ImGuiTabBarFlags tab_bar_flags = ImGuiTabBarFlags_AutoSelectNewTabs | ImGuiTabBarFlags_Reorderable | ImGuiTabBarFlags_FittingPolicyResizeDown;
+            ImGui::CheckboxFlags("ImGuiTabBarFlags_TabListPopupButton", &tab_bar_flags, ImGuiTabBarFlags_TabListPopupButton);
+            if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyResizeDown", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyResizeDown))
+                tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyResizeDown);
+            if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyScroll", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyScroll))
+                tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyScroll);
+
+            if (ImGui::BeginTabBar("MyTabBar", tab_bar_flags))
+            {
+                // Demo a Leading TabItemButton(): click the "?" button to open a menu
+                if (show_leading_button)
+                    if (ImGui::TabItemButton("?", ImGuiTabItemFlags_Leading | ImGuiTabItemFlags_NoTooltip))
+                        ImGui::OpenPopup("MyHelpMenu");
+                if (ImGui::BeginPopup("MyHelpMenu"))
+                {
+                    ImGui::Selectable("Hello!");
+                    ImGui::EndPopup();
+                }
+
+                // Demo Trailing Tabs: click the "+" button to add a new tab (in your app you may want to use a font icon instead of the "+")
+                // Note that we submit it before the regular tabs, but because of the ImGuiTabItemFlags_Trailing flag it will always appear at the end.
+                if (show_trailing_button)
+                    if (ImGui::TabItemButton("+", ImGuiTabItemFlags_Trailing | ImGuiTabItemFlags_NoTooltip))
+                        active_tabs.push_back(next_tab_id++); // Add new tab
+
+                // Submit our regular tabs
+                for (int n = 0; n < active_tabs.Size; )
+                {
+                    bool open = true;
+                    char name[16];
+                    snprintf(name, IM_ARRAYSIZE(name), "%04d", active_tabs[n]);
+                    if (ImGui::BeginTabItem(name, &open, ImGuiTabItemFlags_None))
+                    {
+                        ImGui::Text("This is the %s tab!", name);
+                        ImGui::EndTabItem();
+                    }
+
+                    if (!open)
+                        active_tabs.erase(active_tabs.Data + n);
+                    else
+                        n++;
+                }
+
+                ImGui::EndTabBar();
+            }
+            ImGui::Separator();
+            ImGui::TreePop();
+        }
+        ImGui::TreePop();
+    }
+
+    // Plot/Graph widgets are not very good.
+    // Consider writing your own, or using a third-party one, see:
+    // - ImPlot https://github.com/epezent/implot
+    // - others https://github.com/ocornut/imgui/wiki/Useful-Widgets
     if (ImGui::TreeNode("Plots Widgets"))
     {
         static bool animate = true;
@@ -2378,144 +2518,6 @@ static void ShowDemoWindowLayout()
         ImGui::TreePop();
     }
 
-    if (ImGui::TreeNode("Tabs"))
-    {
-        if (ImGui::TreeNode("Basic"))
-        {
-            ImGuiTabBarFlags tab_bar_flags = ImGuiTabBarFlags_None;
-            if (ImGui::BeginTabBar("MyTabBar", tab_bar_flags))
-            {
-                if (ImGui::BeginTabItem("Avocado"))
-                {
-                    ImGui::Text("This is the Avocado tab!\nblah blah blah blah blah");
-                    ImGui::EndTabItem();
-                }
-                if (ImGui::BeginTabItem("Broccoli"))
-                {
-                    ImGui::Text("This is the Broccoli tab!\nblah blah blah blah blah");
-                    ImGui::EndTabItem();
-                }
-                if (ImGui::BeginTabItem("Cucumber"))
-                {
-                    ImGui::Text("This is the Cucumber tab!\nblah blah blah blah blah");
-                    ImGui::EndTabItem();
-                }
-                ImGui::EndTabBar();
-            }
-            ImGui::Separator();
-            ImGui::TreePop();
-        }
-
-        if (ImGui::TreeNode("Advanced & Close Button"))
-        {
-            // Expose a couple of the available flags. In most cases you may just call BeginTabBar() with no flags (0).
-            static ImGuiTabBarFlags tab_bar_flags = ImGuiTabBarFlags_Reorderable;
-            ImGui::CheckboxFlags("ImGuiTabBarFlags_Reorderable", &tab_bar_flags, ImGuiTabBarFlags_Reorderable);
-            ImGui::CheckboxFlags("ImGuiTabBarFlags_AutoSelectNewTabs", &tab_bar_flags, ImGuiTabBarFlags_AutoSelectNewTabs);
-            ImGui::CheckboxFlags("ImGuiTabBarFlags_TabListPopupButton", &tab_bar_flags, ImGuiTabBarFlags_TabListPopupButton);
-            ImGui::CheckboxFlags("ImGuiTabBarFlags_NoCloseWithMiddleMouseButton", &tab_bar_flags, ImGuiTabBarFlags_NoCloseWithMiddleMouseButton);
-            if ((tab_bar_flags & ImGuiTabBarFlags_FittingPolicyMask_) == 0)
-                tab_bar_flags |= ImGuiTabBarFlags_FittingPolicyDefault_;
-            if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyResizeDown", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyResizeDown))
-                tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyResizeDown);
-            if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyScroll", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyScroll))
-                tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyScroll);
-
-            // Tab Bar
-            const char* names[4] = { "Artichoke", "Beetroot", "Celery", "Daikon" };
-            static bool opened[4] = { true, true, true, true }; // Persistent user state
-            for (int n = 0; n < IM_ARRAYSIZE(opened); n++)
-            {
-                if (n > 0) { ImGui::SameLine(); }
-                ImGui::Checkbox(names[n], &opened[n]);
-            }
-
-            // Passing a bool* to BeginTabItem() is similar to passing one to Begin():
-            // the underlying bool will be set to false when the tab is closed.
-            if (ImGui::BeginTabBar("MyTabBar", tab_bar_flags))
-            {
-                for (int n = 0; n < IM_ARRAYSIZE(opened); n++)
-                    if (opened[n] && ImGui::BeginTabItem(names[n], &opened[n], ImGuiTabItemFlags_None))
-                    {
-                        ImGui::Text("This is the %s tab!", names[n]);
-                        if (n & 1)
-                            ImGui::Text("I am an odd tab.");
-                        ImGui::EndTabItem();
-                    }
-                ImGui::EndTabBar();
-            }
-            ImGui::Separator();
-            ImGui::TreePop();
-        }
-
-        if (ImGui::TreeNode("TabItemButton & Leading/Trailing flags"))
-        {
-            static ImVector<int> active_tabs;
-            static int next_tab_id = 0;
-            if (next_tab_id == 0) // Initialize with some default tabs
-                for (int i = 0; i < 3; i++)
-                    active_tabs.push_back(next_tab_id++);
-
-            // TabItemButton() and Leading/Trailing flags are distinct features which we will demo together.
-            // (It is possible to submit regular tabs with Leading/Trailing flags, or TabItemButton tabs without Leading/Trailing flags...
-            // but they tend to make more sense together)
-            static bool show_leading_button = true;
-            static bool show_trailing_button = true;
-            ImGui::Checkbox("Show Leading TabItemButton()", &show_leading_button);
-            ImGui::Checkbox("Show Trailing TabItemButton()", &show_trailing_button);
-
-            // Expose some other flags which are useful to showcase how they interact with Leading/Trailing tabs
-            static ImGuiTabBarFlags tab_bar_flags = ImGuiTabBarFlags_AutoSelectNewTabs | ImGuiTabBarFlags_Reorderable | ImGuiTabBarFlags_FittingPolicyResizeDown;
-            ImGui::CheckboxFlags("ImGuiTabBarFlags_TabListPopupButton", &tab_bar_flags, ImGuiTabBarFlags_TabListPopupButton);
-            if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyResizeDown", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyResizeDown))
-                tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyResizeDown);
-            if (ImGui::CheckboxFlags("ImGuiTabBarFlags_FittingPolicyScroll", &tab_bar_flags, ImGuiTabBarFlags_FittingPolicyScroll))
-                tab_bar_flags &= ~(ImGuiTabBarFlags_FittingPolicyMask_ ^ ImGuiTabBarFlags_FittingPolicyScroll);
-
-            if (ImGui::BeginTabBar("MyTabBar", tab_bar_flags))
-            {
-                // Demo a Leading TabItemButton(): click the "?" button to open a menu
-                if (show_leading_button)
-                    if (ImGui::TabItemButton("?", ImGuiTabItemFlags_Leading | ImGuiTabItemFlags_NoTooltip))
-                        ImGui::OpenPopup("MyHelpMenu");
-                if (ImGui::BeginPopup("MyHelpMenu"))
-                {
-                    ImGui::Selectable("Hello!");
-                    ImGui::EndPopup();
-                }
-
-                // Demo Trailing Tabs: click the "+" button to add a new tab (in your app you may want to use a font icon instead of the "+")
-                // Note that we submit it before the regular tabs, but because of the ImGuiTabItemFlags_Trailing flag it will always appear at the end.
-                if (show_trailing_button)
-                    if (ImGui::TabItemButton("+", ImGuiTabItemFlags_Trailing | ImGuiTabItemFlags_NoTooltip))
-                        active_tabs.push_back(next_tab_id++); // Add new tab
-
-                // Submit our regular tabs
-                for (int n = 0; n < active_tabs.Size; )
-                {
-                    bool open = true;
-                    char name[16];
-                    snprintf(name, IM_ARRAYSIZE(name), "%04d", active_tabs[n]);
-                    if (ImGui::BeginTabItem(name, &open, ImGuiTabItemFlags_None))
-                    {
-                        ImGui::Text("This is the %s tab!", name);
-                        ImGui::EndTabItem();
-                    }
-
-                    if (!open)
-                        active_tabs.erase(active_tabs.Data + n);
-                    else
-                        n++;
-                }
-
-                ImGui::EndTabBar();
-            }
-            ImGui::Separator();
-            ImGui::TreePop();
-        }
-        ImGui::TreePop();
-    }
-
     if (ImGui::TreeNode("Groups"))
     {
         HelpMarker(
@@ -4180,16 +4182,44 @@ static void ShowDemoWindowTables()
         ImGui::SetNextItemOpen(open_action != 0);
     if (ImGui::TreeNode("Columns widths"))
     {
-        HelpMarker("Using TableSetupColumn() to setup explicit width.");
+        HelpMarker("Using TableSetupColumn() to setup default width.");
 
-        static ImGuiTableFlags flags = ImGuiTableFlags_None;
+        static ImGuiTableFlags flags1 = ImGuiTableFlags_Borders | ImGuiTableFlags_NoBordersInBodyUntilResize;
         PushStyleCompact();
-        ImGui::CheckboxFlags("ImGuiTableFlags_NoKeepColumnsVisible", &flags, ImGuiTableFlags_NoKeepColumnsVisible);
+        ImGui::CheckboxFlags("ImGuiTableFlags_Resizable", &flags1, ImGuiTableFlags_Resizable);
-        ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", &flags, ImGuiTableFlags_BordersInnerV);
+        ImGui::CheckboxFlags("ImGuiTableFlags_NoBordersInBodyUntilResize", &flags1, ImGuiTableFlags_NoBordersInBodyUntilResize);
-        ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", &flags, ImGuiTableFlags_BordersOuterV);
         PopStyleCompact();
+        if (ImGui::BeginTable("##table1", 3, flags1))
+        {
+            // We could also set ImGuiTableFlags_SizingFixedFit on the table and all columns will default to ImGuiTableColumnFlags_WidthFixed.
+            ImGui::TableSetupColumn("one", ImGuiTableColumnFlags_WidthFixed, 100.0f); // Default to 100.0f
+            ImGui::TableSetupColumn("two", ImGuiTableColumnFlags_WidthFixed, 200.0f); // Default to 200.0f
+            ImGui::TableSetupColumn("three", ImGuiTableColumnFlags_WidthFixed);       // Default to auto
+            ImGui::TableHeadersRow();
+            for (int row = 0; row < 4; row++)
+            {
+                ImGui::TableNextRow();
+                for (int column = 0; column < 3; column++)
+                {
+                    ImGui::TableSetColumnIndex(column);
+                    if (row == 0)
+                        ImGui::Text("(w: %5.1f)", ImGui::GetContentRegionAvail().x);
+                    else
+                        ImGui::Text("Hello %d,%d", column, row);
+                }
+            }
+            ImGui::EndTable();
+        }
 
-        if (ImGui::BeginTable("##table1", 4, flags))
+        HelpMarker("Using TableSetupColumn() to setup explicit width.\n\nUnless _NoKeepColumnsVisible is set, fixed columns with set width may still be shrunk down if there's not enough space in the host.");
+
+        static ImGuiTableFlags flags2 = ImGuiTableFlags_None;
+        PushStyleCompact();
+        ImGui::CheckboxFlags("ImGuiTableFlags_NoKeepColumnsVisible", &flags2, ImGuiTableFlags_NoKeepColumnsVisible);
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersInnerV", &flags2, ImGuiTableFlags_BordersInnerV);
+        ImGui::CheckboxFlags("ImGuiTableFlags_BordersOuterV", &flags2, ImGuiTableFlags_BordersOuterV);
+        PopStyleCompact();
+        if (ImGui::BeginTable("##table2", 4, flags2))
         {
             // We could also set ImGuiTableFlags_SizingFixedFit on the table and all columns will default to ImGuiTableColumnFlags_WidthFixed.
             ImGui::TableSetupColumn("", ImGuiTableColumnFlags_WidthFixed, 100.0f);
@@ -4203,8 +4233,9 @@ static void ShowDemoWindowTables()
                 {
                     ImGui::TableSetColumnIndex(column);
                     if (row == 0)
-                        ImGui::Text("(%.2f)", ImGui::GetContentRegionAvail().x);
+                        ImGui::Text("(w: %5.1f)", ImGui::GetContentRegionAvail().x);
-                    ImGui::Text("Hello %d,%d", column, row);
+                    else
+                        ImGui::Text("Hello %d,%d", column, row);
                 }
             }
             ImGui::EndTable();
@@ -4742,10 +4773,10 @@ static void ShowDemoWindowTables()
             // - ImGuiTableColumnFlags_DefaultSort
             // - ImGuiTableColumnFlags_NoSort / ImGuiTableColumnFlags_NoSortAscending / ImGuiTableColumnFlags_NoSortDescending
             // - ImGuiTableColumnFlags_PreferSortAscending / ImGuiTableColumnFlags_PreferSortDescending
-            ImGui::TableSetupColumn("ID",       ImGuiTableColumnFlags_DefaultSort          | ImGuiTableColumnFlags_WidthFixed,   -1.0f, MyItemColumnID_ID);
+            ImGui::TableSetupColumn("ID",       ImGuiTableColumnFlags_DefaultSort          | ImGuiTableColumnFlags_WidthFixed,   0.0f, MyItemColumnID_ID);
-            ImGui::TableSetupColumn("Name",                                                  ImGuiTableColumnFlags_WidthFixed,   -1.0f, MyItemColumnID_Name);
+            ImGui::TableSetupColumn("Name",                                                  ImGuiTableColumnFlags_WidthFixed,   0.0f, MyItemColumnID_Name);
-            ImGui::TableSetupColumn("Action",   ImGuiTableColumnFlags_NoSort               | ImGuiTableColumnFlags_WidthFixed,   -1.0f, MyItemColumnID_Action);
+            ImGui::TableSetupColumn("Action",   ImGuiTableColumnFlags_NoSort               | ImGuiTableColumnFlags_WidthFixed,   0.0f, MyItemColumnID_Action);
-            ImGui::TableSetupColumn("Quantity", ImGuiTableColumnFlags_PreferSortDescending | ImGuiTableColumnFlags_WidthStretch, -1.0f, MyItemColumnID_Quantity);
+            ImGui::TableSetupColumn("Quantity", ImGuiTableColumnFlags_PreferSortDescending | ImGuiTableColumnFlags_WidthStretch, 0.0f, MyItemColumnID_Quantity);
             ImGui::TableSetupScrollFreeze(0, 1); // Make row always visible
             ImGui::TableHeadersRow();
 
@@ -4948,11 +4979,11 @@ static void ShowDemoWindowTables()
             // Declare columns
             // We use the "user_id" parameter of TableSetupColumn() to specify a user id that will be stored in the sort specifications.
             // This is so our sort function can identify a column given our own identifier. We could also identify them based on their index!
-            ImGui::TableSetupColumn("ID",           ImGuiTableColumnFlags_DefaultSort | ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_NoHide, -1.0f, MyItemColumnID_ID);
+            ImGui::TableSetupColumn("ID",           ImGuiTableColumnFlags_DefaultSort | ImGuiTableColumnFlags_WidthFixed | ImGuiTableColumnFlags_NoHide, 0.0f, MyItemColumnID_ID);
-            ImGui::TableSetupColumn("Name",         ImGuiTableColumnFlags_WidthFixed, -1.0f, MyItemColumnID_Name);
+            ImGui::TableSetupColumn("Name",         ImGuiTableColumnFlags_WidthFixed, 0.0f, MyItemColumnID_Name);
-            ImGui::TableSetupColumn("Action",       ImGuiTableColumnFlags_NoSort | ImGuiTableColumnFlags_WidthFixed, -1.0f, MyItemColumnID_Action);
+            ImGui::TableSetupColumn("Action",       ImGuiTableColumnFlags_NoSort | ImGuiTableColumnFlags_WidthFixed, 0.0f, MyItemColumnID_Action);
-            ImGui::TableSetupColumn("Quantity",     ImGuiTableColumnFlags_PreferSortDescending, -1.0f, MyItemColumnID_Quantity);
+            ImGui::TableSetupColumn("Quantity",     ImGuiTableColumnFlags_PreferSortDescending, 0.0f, MyItemColumnID_Quantity);
-            ImGui::TableSetupColumn("Description",  ImGuiTableColumnFlags_WidthStretch, -1.0f, MyItemColumnID_Description);
+            ImGui::TableSetupColumn("Description",  ImGuiTableColumnFlags_WidthStretch, 0.0f, MyItemColumnID_Description);
             ImGui::TableSetupColumn("Hidden",       ImGuiTableColumnFlags_DefaultHide | ImGuiTableColumnFlags_NoSort);
             ImGui::TableSetupScrollFreeze(freeze_cols, freeze_rows);
 

imgui_tables.cpp

@@ -1313,7 +1313,8 @@ void    ImGui::EndTable()
     outer_window->DC.CurrentTableIdx = g.CurrentTable ? g.Tables.GetIndex(g.CurrentTable) : -1;
 }
 
-// See "COLUMN SIZING POLICIES" comments at the top of this file 
+// See "COLUMN SIZING POLICIES" comments at the top of this file
+// If (init_width_or_weight <= 0.0f) it is ignored
 void ImGui::TableSetupColumn(const char* label, ImGuiTableColumnFlags flags, float init_width_or_weight, ImGuiID user_id)
 {
     ImGuiContext& g = *GImGui;
@@ -1341,8 +1342,6 @@ void ImGui::TableSetupColumn(const char* label, ImGuiTableColumnFlags flags, flo
     flags = column->Flags;
 
     // Initialize defaults
-    if (flags & ImGuiTableColumnFlags_WidthStretch)
-        IM_ASSERT(init_width_or_weight != 0.0f && "Need to provide a valid weight!");
     column->InitStretchWeightOrWidth = init_width_or_weight;
     if (table->IsInitializing)
     {

imgui_widgets.cpp

@@ -6233,6 +6233,11 @@ bool ImGui::ListBox(const char* label, int* current_item, bool (*items_getter)(v
 // - PlotLines()
 // - PlotHistogram()
 //-------------------------------------------------------------------------
+// Plot/Graph widgets are not very good.
+// Consider writing your own, or using a third-party one, see:
+// - ImPlot https://github.com/epezent/implot
+// - others https://github.com/ocornut/imgui/wiki/Useful-Widgets
+//-------------------------------------------------------------------------
 
 int ImGui::PlotEx(ImGuiPlotType plot_type, const char* label, float (*values_getter)(void* data, int idx), void* data, int values_count, int values_offset, const char* overlay_text, float scale_min, float scale_max, ImVec2 frame_size)
 {