Comments about obsoleted features version. Todo. Clarify tab bar initial offset (useful if we decide to remove the half-windowpadding clip margin).

docs/TODO.txt

@@ -69,6 +69,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - widgets: selectable: a way to visualize partial/mixed selection (e.g. parent tree node has children with mixed selection)
  - widgets: checkbox: checkbox with custom glyph inside frame.
  - widgets: coloredit: keep reporting as active when picker is on?
+ - widgets: group/scalarn functions: expose more per-component information. e.g. store NextItemData.ComponentIdx set by scalarn function, groups can expose them back somehow.
 
  - input text: clean up the mess caused by converting UTF-8 <> wchar. the code is rather inefficient right now and super fragile.
  - input text: reorganize event handling, allow CharFilter to modify buffers, allow multiple events? (#541)
@@ -231,6 +232,7 @@ It's mostly a bunch of personal notes, probably incomplete. Feel free to query i
  - style: a concept of "compact style" that the end-user can easily rely on (e.g. PushStyleCompact()?) that maps to other settings? avoid implementing duplicate helpers such as SmallCheckbox(), etc.
  - style: try to make PushStyleVar() more robust to incorrect parameters (to be more friendly to edit & continues situation).
  - style: global scale setting.
+ - style: FramePadding could be different for up vs down (#584)
  - style: WindowPadding needs to be EVEN as the 0.5 multiplier used on this value probably have a subtle effect on clip rectangle
  - style: have a more global HSV setter (e.g. alter hue on all elements). consider replacing active/hovered by offset in HSV space? (#438, #707, #1223)
  - style: gradients fill (#1223) ~ 2 bg colors for each fill? tricky with rounded shapes and using textures for corners.

imgui.h

@@ -790,7 +790,7 @@ enum ImGuiTreeNodeFlags_
 
     // Obsolete names (will be removed)
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    , ImGuiTreeNodeFlags_AllowOverlapMode = ImGuiTreeNodeFlags_AllowItemOverlap
+    , ImGuiTreeNodeFlags_AllowOverlapMode = ImGuiTreeNodeFlags_AllowItemOverlap // [renamed in 1.53]
 #endif
 };
 
@@ -801,7 +801,7 @@ enum ImGuiSelectableFlags_
     ImGuiSelectableFlags_DontClosePopups    = 1 << 0,   // Clicking this don't close parent popup window
     ImGuiSelectableFlags_SpanAllColumns     = 1 << 1,   // Selectable frame can span all columns (text will still fit in current column)
     ImGuiSelectableFlags_AllowDoubleClick   = 1 << 2,   // Generate press events on double clicks too
-    ImGuiSelectableFlags_Disabled           = 1 << 3    // Cannot be selected, display greyed out text
+    ImGuiSelectableFlags_Disabled           = 1 << 3    // Cannot be selected, display grayed out text
 };
 
 // Flags for ImGui::BeginCombo()
@@ -1106,7 +1106,8 @@ enum ImGuiStyleVar_
 
     // Obsolete names (will be removed)
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    , ImGuiStyleVar_Count_ = ImGuiStyleVar_COUNT, ImGuiStyleVar_ChildWindowRounding = ImGuiStyleVar_ChildRounding
+    , ImGuiStyleVar_Count_ = ImGuiStyleVar_COUNT                        // [renamed in 1.60]
+    , ImGuiStyleVar_ChildWindowRounding = ImGuiStyleVar_ChildRounding   // [renamed in 1.53]
 #endif
 };
 
@@ -1151,7 +1152,7 @@ enum ImGuiColorEditFlags_
 
     // Obsolete names (will be removed)
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    , ImGuiColorEditFlags_RGB = ImGuiColorEditFlags_DisplayRGB, ImGuiColorEditFlags_HSV = ImGuiColorEditFlags_DisplayHSV, ImGuiColorEditFlags_HEX = ImGuiColorEditFlags_DisplayHex
+    , ImGuiColorEditFlags_RGB = ImGuiColorEditFlags_DisplayRGB, ImGuiColorEditFlags_HSV = ImGuiColorEditFlags_DisplayHSV, ImGuiColorEditFlags_HEX = ImGuiColorEditFlags_DisplayHex  // [renamed in 1.69]
 #endif
 };
 
@@ -1172,7 +1173,7 @@ enum ImGuiMouseCursor_
 
     // Obsolete names (will be removed)
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    , ImGuiMouseCursor_Count_ = ImGuiMouseCursor_COUNT
+    , ImGuiMouseCursor_Count_ = ImGuiMouseCursor_COUNT      // [renamed in 1.60]
 #endif
 };
 
@@ -1188,7 +1189,7 @@ enum ImGuiCond_
 
     // Obsolete names (will be removed)
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    , ImGuiSetCond_Always = ImGuiCond_Always, ImGuiSetCond_Once = ImGuiCond_Once, ImGuiSetCond_FirstUseEver = ImGuiCond_FirstUseEver, ImGuiSetCond_Appearing = ImGuiCond_Appearing
+    , ImGuiSetCond_Always = ImGuiCond_Always, ImGuiSetCond_Once = ImGuiCond_Once, ImGuiSetCond_FirstUseEver = ImGuiCond_FirstUseEver, ImGuiSetCond_Appearing = ImGuiCond_Appearing  // [renamed in 1.51]
 #endif
 };
 
@@ -1535,7 +1536,6 @@ namespace ImGui
 {
     // OBSOLETED in 1.71 (from May 2019)
     static inline void SetNextTreeNodeOpen(bool open, ImGuiCond cond = 0)   { SetNextItemOpen(open, cond); }
-
     // OBSOLETED in 1.70 (from May 2019)
     static inline float GetContentRegionAvailWidth()          { return GetContentRegionAvail().x; }
     // OBSOLETED in 1.69 (from Mar 2019)
@@ -1570,7 +1570,7 @@ namespace ImGui
     static inline bool  IsMouseHoveringAnyWindow()            { return IsWindowHovered(ImGuiHoveredFlags_AnyWindow); }
     static inline bool  IsMouseHoveringWindow()               { return IsWindowHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup | ImGuiHoveredFlags_AllowWhenBlockedByActiveItem); }
 }
-typedef ImGuiInputTextCallback      ImGuiTextEditCallback;    // OBSOLETE in 1.63 (from Aug 2018): made the names consistent
+typedef ImGuiInputTextCallback      ImGuiTextEditCallback;    // OBSOLETED in 1.63 (from Aug 2018): made the names consistent
 typedef ImGuiInputTextCallbackData  ImGuiTextEditCallbackData;
 #endif
 
@@ -2153,7 +2153,7 @@ struct ImFontAtlas
     int                         CustomRectIds[1];   // Identifiers of custom texture rectangle used by ImFontAtlas/ImDrawList
 
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    typedef ImFontGlyphRangesBuilder GlyphRangesBuilder; // OBSOLETE 1.67+
+    typedef ImFontGlyphRangesBuilder GlyphRangesBuilder; // OBSOLETED in 1.67+
 #endif
 };
 
@@ -2207,7 +2207,7 @@ struct ImFont
     IMGUI_API void              SetFallbackChar(ImWchar c);
 
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
-    typedef ImFontGlyph Glyph; // OBSOLETE 1.52+
+    typedef ImFontGlyph Glyph; // OBSOLETED in 1.52+
 #endif
 };
 

imgui_widgets.cpp

@@ -6460,7 +6460,8 @@ static void ImGui::TabBarLayout(ImGuiTabBar* tab_bar)
     }
 
     // Compute width
-    const float width_avail = tab_bar->BarRect.GetWidth();
+    const float initial_offset_x = 0.0f; // g.Style.ItemInnerSpacing.x;
+    const float width_avail = ImMax(tab_bar->BarRect.GetWidth() - initial_offset_x, 0.0f);
     float width_excess = (width_avail < width_total_contents) ? (width_total_contents - width_avail) : 0.0f;
     if (width_excess > 0.0f && (tab_bar->Flags & ImGuiTabBarFlags_FittingPolicyResizeDown))
     {
@@ -6480,7 +6481,8 @@ static void ImGui::TabBarLayout(ImGuiTabBar* tab_bar)
     }
 
     // Layout all active tabs
-    float offset_x = 0.0f;
+    float offset_x = initial_offset_x;
+    tab_bar->OffsetNextTab = offset_x; // This is used by non-reorderable tab bar where the submission order is always honored.
     for (int tab_n = 0; tab_n < tab_bar->Tabs.Size; tab_n++)
     {
         ImGuiTabItem* tab = &tab_bar->Tabs[tab_n];
@@ -6490,7 +6492,6 @@ static void ImGui::TabBarLayout(ImGuiTabBar* tab_bar)
         offset_x += tab->Width + g.Style.ItemInnerSpacing.x;
     }
     tab_bar->OffsetMax = ImMax(offset_x - g.Style.ItemInnerSpacing.x, 0.0f);
-    tab_bar->OffsetNextTab = 0.0f;
 
     // Horizontal scrolling buttons
     const bool scrolling_buttons = (tab_bar->OffsetMax > tab_bar->BarRect.GetWidth() && tab_bar->Tabs.Size > 1) && !(tab_bar->Flags & ImGuiTabBarFlags_NoTabListScrollingButtons) && (tab_bar->Flags & ImGuiTabBarFlags_FittingPolicyScroll);