Internals: Merge in minor noise from wip Tables branch to simplify further merging.

imgui.cpp

@@ -3934,6 +3934,11 @@ void ImGui::Shutdown(ImGuiContext* context)
     g.DrawDataBuilder.ClearFreeMemory();
     g.BackgroundDrawList.ClearFreeMemory();
     g.ForegroundDrawList.ClearFreeMemory();
+
+    g.TabBars.Clear();
+    g.CurrentTabBarStack.clear();
+    g.ShrinkWidthBuffer.clear();
+
     g.PrivateClipboard.clear();
     g.InputTextState.ClearFreeMemory();
 
@@ -6744,7 +6749,8 @@ void ImGui::SetNextWindowBgAlpha(float alpha)
 // FIXME: This is in window space (not screen space!). We should try to obsolete all those functions.
 ImVec2 ImGui::GetContentRegionMax()
 {
-    ImGuiWindow* window = GImGui->CurrentWindow;
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
     ImVec2 mx = window->ContentsRegionRect.Max - window->Pos;
     if (window->DC.CurrentColumns)
         mx.x = window->WorkRect.Max.x - window->Pos.x;
@@ -6754,7 +6760,8 @@ ImVec2 ImGui::GetContentRegionMax()
 // [Internal] Absolute coordinate. Saner. This is not exposed until we finishing refactoring work rect features.
 ImVec2 ImGui::GetContentRegionMaxAbs()
 {
-    ImGuiWindow* window = GImGui->CurrentWindow;
+    ImGuiContext& g = *GImGui;
+    ImGuiWindow* window = g.CurrentWindow;
     ImVec2 mx = window->ContentsRegionRect.Max;
     if (window->DC.CurrentColumns)
         mx.x = window->WorkRect.Max.x;
@@ -9650,14 +9657,16 @@ void ImGui::ShowMetricsWindow(bool* p_open)
         return;
     }
 
+    // State
     enum { WRT_OuterRect, WRT_OuterRectClipped, WRT_InnerRect, WRT_InnerClipRect, WRT_WorkRect, WRT_Contents, WRT_ContentsRegionRect, WRT_Count }; // Windows Rect Type
     const char* wrt_rects_names[WRT_Count] = { "OuterRect", "OuterRectClipped", "InnerRect", "InnerClipRect", "WorkRect", "Contents", "ContentsRegionRect" };
-
-    static bool show_windows_begin_order = false;
     static bool show_windows_rects = false;
     static int  show_windows_rect_type = WRT_WorkRect;
+    static bool show_windows_begin_order = false;
     static bool show_drawcmd_clip_rects = true;
 
+    // Basic info
+    ImGuiContext& g = *GImGui;
     ImGuiIO& io = ImGui::GetIO();
     ImGui::Text("Dear ImGui %s", ImGui::GetVersion());
     ImGui::Text("Application average %.3f ms/frame (%.1f FPS)", 1000.0f / io.Framerate, io.Framerate);
@@ -9666,6 +9675,12 @@ void ImGui::ShowMetricsWindow(bool* p_open)
     ImGui::Text("%d active allocations", io.MetricsActiveAllocations);
     ImGui::Separator();
 
+    // Helper functions to display common structures:
+    // - NodeDrawList
+    // - NodeColumns
+    // - NodeWindow
+    // - NodeWindows
+    // - NodeTabBar
     struct Funcs
     {
         static ImRect GetWindowRect(ImGuiWindow* window, int rect_type)
@@ -9830,8 +9845,6 @@ void ImGui::ShowMetricsWindow(bool* p_open)
         }
     };
 
-    // Access private state, we are going to display the draw lists from last frame
-    ImGuiContext& g = *GImGui;
     Funcs::NodeWindows(g.Windows, "Windows");
     if (ImGui::TreeNode("DrawList", "Active DrawLists (%d)", g.DrawDataBuilder.Layers[0].Size))
     {
@@ -9857,6 +9870,20 @@ void ImGui::ShowMetricsWindow(bool* p_open)
         ImGui::TreePop();
     }
 
+#if 0
+    if (ImGui::TreeNode("Docking"))
+    {
+        ImGui::TreePop();
+    }
+#endif
+
+#if 0
+    if (ImGui::TreeNode("Tables", "Tables (%d)", g.Tables.Data.Size))
+    {
+        ImGui::TreePop();
+    }
+#endif
+
     if (ImGui::TreeNode("Internal state"))
     {
         const char* input_source_names[] = { "None", "Mouse", "Nav", "NavKeyboard", "NavGamepad" }; IM_ASSERT(IM_ARRAYSIZE(input_source_names) == ImGuiInputSource_COUNT);
@@ -9903,6 +9930,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
         ImGui::TreePop();
     }
 
+    // Tool: Display windows Rectangles and Begin Order
     if (show_windows_rects || show_windows_begin_order)
     {
         for (int n = 0; n < g.Windows.Size; n++)

imgui_internal.h

@@ -358,7 +358,8 @@ enum ImGuiSelectableFlagsPrivate_
     ImGuiSelectableFlags_PressedOnClick     = 1 << 21,
     ImGuiSelectableFlags_PressedOnRelease   = 1 << 22,
     ImGuiSelectableFlags_DrawFillAvailWidth = 1 << 23,  // FIXME: We may be able to remove this (added in 6251d379 for menus)
-    ImGuiSelectableFlags_AllowItemOverlap   = 1 << 24
+    ImGuiSelectableFlags_AllowItemOverlap   = 1 << 24,
+    ImGuiSelectableFlags_DrawHoveredWhenHeld= 1 << 25   // Always show active when held, even is not hovered. This concept could probably be renamed/formalized somehow.
 };
 
 // Extend ImGuiTreeNodeFlags_
@@ -827,13 +828,13 @@ struct ImGuiShrinkWidthItem
     float           Width;
 };
 
-struct ImGuiTabBarRef
+struct ImGuiPtrOrIndex
 {
-    ImGuiTabBar*    Ptr;                    // Either field can be set, not both. Dock node tab bars are loose while BeginTabBar() ones are in a pool.
-    int             IndexInMainPool;
+    void*           Ptr;                // Either field can be set, not both. e.g. Dock node tab bars are loose while BeginTabBar() ones are in a pool.
+    int             Index;              // Usually index in a main pool.
 
-    ImGuiTabBarRef(ImGuiTabBar* ptr)        { Ptr = ptr; IndexInMainPool = -1; }
-    ImGuiTabBarRef(int index_in_main_pool)  { Ptr = NULL; IndexInMainPool = index_in_main_pool; }
+    ImGuiPtrOrIndex(void* ptr)          { Ptr = ptr; Index = -1; }
+    ImGuiPtrOrIndex(int index)          { Ptr = NULL; Index = index; }
 };
 
 //-----------------------------------------------------------------------------
@@ -986,9 +987,9 @@ struct ImGuiContext
     unsigned char           DragDropPayloadBufLocal[8];         // Local buffer for small payloads
 
     // Tab bars
-    ImPool<ImGuiTabBar>             TabBars;
     ImGuiTabBar*                    CurrentTabBar;
-    ImVector<ImGuiTabBarRef>        CurrentTabBarStack;
+    ImPool<ImGuiTabBar>             TabBars;
+    ImVector<ImGuiPtrOrIndex>       CurrentTabBarStack;
     ImVector<ImGuiShrinkWidthItem>  ShrinkWidthBuffer;
 
     // Widget state
@@ -1425,7 +1426,7 @@ struct ImGuiTabBar
     float               ScrollingSpeed;
     ImGuiTabBarFlags    Flags;
     ImGuiID             ReorderRequestTabId;
-    int                 ReorderRequestDir;
+    ImS8                ReorderRequestDir;
     bool                WantLayout;
     bool                VisibleTabWasSubmitted;
     short               LastTabItemIdx;         // For BeginTabItem()/EndTabItem()

imgui_widgets.cpp

@@ -5490,6 +5490,8 @@ bool ImGui::Selectable(const char* label, bool selected, ImGuiSelectableFlags fl
         window->DC.LastItemStatusFlags |= ImGuiItemStatusFlags_ToggledSelection;
 
     // Render
+    if (held && (flags & ImGuiSelectableFlags_DrawHoveredWhenHeld))
+        hovered = true;
     if (hovered || selected)
     {
         const ImU32 col = GetColorU32((held && hovered) ? ImGuiCol_HeaderActive : hovered ? ImGuiCol_HeaderHovered : ImGuiCol_Header);
@@ -6271,18 +6273,18 @@ static int IMGUI_CDECL TabItemComparerByVisibleOffset(const void* lhs, const voi
     return (int)(a->Offset - b->Offset);
 }
 
-static ImGuiTabBar* GetTabBarFromTabBarRef(const ImGuiTabBarRef& ref)
+static ImGuiTabBar* GetTabBarFromTabBarRef(const ImGuiPtrOrIndex& ref)
 {
     ImGuiContext& g = *GImGui;
-    return ref.Ptr ? ref.Ptr : g.TabBars.GetByIndex(ref.IndexInMainPool);
+    return ref.Ptr ? (ImGuiTabBar*)ref.Ptr : g.TabBars.GetByIndex(ref.Index);
 }
 
-static ImGuiTabBarRef GetTabBarRefFromTabBar(ImGuiTabBar* tab_bar)
+static ImGuiPtrOrIndex GetTabBarRefFromTabBar(ImGuiTabBar* tab_bar)
 {
     ImGuiContext& g = *GImGui;
     if (g.TabBars.Contains(tab_bar))
-        return ImGuiTabBarRef(g.TabBars.GetIndex(tab_bar));
-    return ImGuiTabBarRef(tab_bar);
+        return ImGuiPtrOrIndex(g.TabBars.GetIndex(tab_bar));
+    return ImGuiPtrOrIndex(tab_bar);
 }
 
 bool    ImGui::BeginTabBar(const char* str_id, ImGuiTabBarFlags flags)
@@ -6637,7 +6639,7 @@ void ImGui::TabBarQueueChangeTabOrder(ImGuiTabBar* tab_bar, const ImGuiTabItem*
     IM_ASSERT(dir == -1 || dir == +1);
     IM_ASSERT(tab_bar->ReorderRequestTabId == 0);
     tab_bar->ReorderRequestTabId = tab->ID;
-    tab_bar->ReorderRequestDir = dir;
+    tab_bar->ReorderRequestDir = (ImS8)dir;
 }
 
 static ImGuiTabItem* ImGui::TabBarScrollingButtons(ImGuiTabBar* tab_bar)