Updated ImGui.

3rdparty/dear-imgui/imgui.cpp

@@ -6,7 +6,7 @@
 // Get latest version at https://github.com/ocornut/imgui
 // Releases change-log at https://github.com/ocornut/imgui/releases
 // Technical Support for Getting Started https://discourse.dearimgui.org/c/getting-started
-// Gallery (please post your screenshots/video there!): https://github.com/ocornut/imgui/issues/1269
+// Gallery (please post your screenshots/video there!): https://github.com/ocornut/imgui/issues/2529
 
 // Developed by Omar Cornut and every direct or indirect contributors to the GitHub.
 // See LICENSE.txt for copyright and licensing details (standard MIT License).
@@ -369,7 +369,8 @@ CODE
  When you are not sure about a old symbol or function name, try using the Search/Find function of your IDE to look for comments or references in all imgui files.
  You can read releases logs https://github.com/ocornut/imgui/releases for more details.
 
- - 2019/07/12 (1.72) - renamed ImFontAtlas::CustomRect to ImFontAtlasCustomRect. Keep redirection typedef (will obsolete).
+ - 2019/07/15 (1.72) - removed TreeAdvanceToLabelPos() which is rarely used and only does SetCursorPosX(GetCursorPosX() + GetTreeNodeToLabelSpacing()). Kept redirection function (will obsolete).
+ - 2019/07/12 (1.72) - renamed ImFontAtlas::CustomRect to ImFontAtlasCustomRect. Kept redirection typedef (will obsolete).
  - 2019/06/14 (1.72) - removed redirecting functions/enums names that were marked obsolete in 1.51 (June 2017): ImGuiCol_Column*, ImGuiSetCond_*, IsItemHoveredRect(), IsPosHoveringAnyWindow(), IsMouseHoveringAnyWindow(), IsMouseHoveringWindow(), IMGUI_ONCE_UPON_A_FRAME. Grep this log for details and new names.
  - 2019/06/07 (1.71) - rendering of child window outer decorations (bg color, border, scrollbars) is now performed as part of the parent window. If you have
                        overlapping child windows in a same parent, and relied on their relative z-order to be mapped to their submission order, this will affect your rendering.
@@ -384,7 +385,7 @@ CODE
  - 2019/02/14 (1.68) - made it illegal/assert when io.DisplayTime == 0.0f (with an exception for the first frame). If for some reason your time step calculation gives you a zero value, replace it with a dummy small value!
  - 2019/02/01 (1.68) - removed io.DisplayVisibleMin/DisplayVisibleMax (which were marked obsolete and removed from viewport/docking branch already).
  - 2019/01/06 (1.67) - renamed io.InputCharacters[], marked internal as was always intended. Please don't access directly, and use AddInputCharacter() instead!
- - 2019/01/06 (1.67) - renamed ImFontAtlas::GlyphRangesBuilder to ImFontGlyphRangesBuilder. Keep redirection typedef (will obsolete).
+ - 2019/01/06 (1.67) - renamed ImFontAtlas::GlyphRangesBuilder to ImFontGlyphRangesBuilder. Kept redirection typedef (will obsolete).
  - 2018/12/20 (1.67) - made it illegal to call Begin("") with an empty string. This somehow half-worked before but had various undesirable side-effects.
  - 2018/12/10 (1.67) - renamed io.ConfigResizeWindowsFromEdges to io.ConfigWindowsResizeFromEdges as we are doing a large pass on configuration flags.
  - 2018/10/12 (1.66) - renamed misc/stl/imgui_stl.* to misc/cpp/imgui_stdlib.* in prevision for other C++ helper files.
@@ -457,7 +458,7 @@ CODE
                          IsMouseHoveringWindow()    --> IsWindowHovered(ImGuiHoveredFlags_AllowWhenBlockedByPopup | ImGuiHoveredFlags_AllowWhenBlockedByActiveItem) [weird, old behavior]
  - 2017/10/17 (1.52) - marked the old 5-parameters version of Begin() as obsolete (still available). Use SetNextWindowSize()+Begin() instead!
  - 2017/10/11 (1.52) - renamed AlignFirstTextHeightToWidgets() to AlignTextToFramePadding(). Kept inline redirection function (will obsolete).
- - 2017/09/26 (1.52) - renamed ImFont::Glyph to ImFontGlyph. Keep redirection typedef (will obsolete).
+ - 2017/09/26 (1.52) - renamed ImFont::Glyph to ImFontGlyph. Kept redirection typedef (will obsolete).
  - 2017/09/25 (1.52) - removed SetNextWindowPosCenter() because SetNextWindowPos() now has the optional pivot information to do the same and more. Kept redirection function (will obsolete).
  - 2017/08/25 (1.52) - io.MousePos needs to be set to ImVec2(-FLT_MAX,-FLT_MAX) when mouse is unavailable/missing. Previously ImVec2(-1,-1) was enough but we now accept negative mouse coordinates. In your binding if you need to support unavailable mouse, make sure to replace "io.MousePos = ImVec2(-1,-1)" with "io.MousePos = ImVec2(-FLT_MAX,-FLT_MAX)".
  - 2017/08/22 (1.51) - renamed IsItemHoveredRect() to IsItemRectHovered(). Kept inline redirection function (will obsolete). -> (1.52) use IsItemHovered(ImGuiHoveredFlags_RectOnly)!
@@ -3455,7 +3456,7 @@ void ImGui::UpdateMouseWheel()
 
     // Zoom / Scale window
     // FIXME-OBSOLETE: This is an old feature, it still works but pretty much nobody is using it and may be best redesigned.
-    if (g.IO.MouseWheel != 0.0f && g.IO.KeyCtrl && g.IO.FontAllowUserScaling && !g.HoveredWindow->Collapsed)
+    if (g.IO.MouseWheel != 0.0f && g.IO.KeyCtrl && g.IO.FontAllowUserScaling)
     {
         ImGuiWindow* window = g.HoveredWindow;
         const float new_font_scale = ImClamp(window->FontWindowScale + g.IO.MouseWheel * 0.10f, 0.50f, 2.50f);

3rdparty/dear-imgui/imgui.h

@@ -497,7 +497,6 @@ namespace ImGui
     IMGUI_API void          TreePush(const char* str_id);                                       // ~ Indent()+PushId(). Already called by TreeNode() when returning true, but you can call TreePush/TreePop yourself if desired.
     IMGUI_API void          TreePush(const void* ptr_id = NULL);                                // "
     IMGUI_API void          TreePop();                                                          // ~ Unindent()+PopId()
-    IMGUI_API void          TreeAdvanceToLabelPos();                                            // advance cursor x position by GetTreeNodeToLabelSpacing()
     IMGUI_API float         GetTreeNodeToLabelSpacing();                                        // horizontal distance preceding label when using TreeNode*() or Bullet() == (g.FontSize + style.FramePadding.x*2) for a regular unframed TreeNode
     IMGUI_API bool          CollapsingHeader(const char* label, ImGuiTreeNodeFlags flags = 0);  // if returning 'true' the header is open. doesn't indent nor push on ID stack. user doesn't have to call TreePop().
     IMGUI_API bool          CollapsingHeader(const char* label, bool* p_open, ImGuiTreeNodeFlags flags = 0); // when 'p_open' isn't NULL, display an additional small close button on upper right of the header
@@ -1041,7 +1040,7 @@ enum ImGuiCol_
     ImGuiCol_Button,
     ImGuiCol_ButtonHovered,
     ImGuiCol_ButtonActive,
-    ImGuiCol_Header,
+    ImGuiCol_Header,                // Header* colors are used for CollapsingHeader, TreeNode, Selectable, MenuItem
     ImGuiCol_HeaderHovered,
     ImGuiCol_HeaderActive,
     ImGuiCol_Separator,
@@ -1532,8 +1531,10 @@ struct ImGuiPayload
 #ifndef IMGUI_DISABLE_OBSOLETE_FUNCTIONS
 namespace ImGui
 {
+    // OBSOLETED in 1.72 (from July 2019)
+    static inline void  TreeAdvanceToLabelPos()               { SetCursorPosX(GetCursorPosX() + GetTreeNodeToLabelSpacing()); }
     // OBSOLETED in 1.71 (from June 2019)
-    static inline void SetNextTreeNodeOpen(bool open, ImGuiCond cond = 0)   { SetNextItemOpen(open, cond); }
+    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)

3rdparty/dear-imgui/imgui_demo.cpp

@@ -628,7 +628,7 @@ static void ShowDemoWindowWidgets()
                 {
                     // Items 3..5 are Tree Leaves
                     // The only reason we use TreeNode at all is to allow selection of the leaf.
-                    // Otherwise we can use BulletText() or TreeAdvanceToLabelPos()+Text().
+                    // Otherwise we can use BulletText() or advance the cursor by GetTreeNodeToLabelSpacing() and call Text().
                     node_flags |= ImGuiTreeNodeFlags_Leaf | ImGuiTreeNodeFlags_NoTreePushOnOpen; // ImGuiTreeNodeFlags_Bullet
                     ImGui::TreeNodeEx((void*)(intptr_t)i, node_flags, "Selectable Leaf %d", i);
                     if (ImGui::IsItemClicked())

3rdparty/dear-imgui/imgui_widgets.cpp

@@ -5005,7 +5005,6 @@ void ImGui::ColorPickerOptionsPopup(const float* ref_col, ImGuiColorEditFlags fl
 // - TreeNodeBehavior() [Internal]
 // - TreePush()
 // - TreePop()
-// - TreeAdvanceToLabelPos()
 // - GetTreeNodeToLabelSpacing()
 // - SetNextItemOpen()
 // - CollapsingHeader()
@@ -5253,13 +5252,13 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
         window->DC.LastItemStatusFlags |= ImGuiItemStatusFlags_ToggledSelection;
 
     // Render
-    const ImU32 bg_col = GetColorU32((held && hovered) ? ImGuiCol_HeaderActive : hovered ? ImGuiCol_HeaderHovered : ImGuiCol_Header);
     const ImU32 text_col = GetColorU32(ImGuiCol_Text);
     const ImVec2 text_pos = frame_bb.Min + ImVec2(text_offset_x, text_base_offset_y);
     ImGuiNavHighlightFlags nav_highlight_flags = ImGuiNavHighlightFlags_TypeThin;
     if (display_frame)
     {
         // Framed type
+        const ImU32 bg_col = GetColorU32((held && hovered) ? ImGuiCol_HeaderActive : hovered ? ImGuiCol_HeaderHovered : ImGuiCol_Header);
         RenderFrame(frame_bb.Min, frame_bb.Max, bg_col, true, style.FrameRounding);
         RenderNavHighlight(frame_bb, id, nav_highlight_flags);
         RenderArrow(window->DrawList, frame_bb.Min + ImVec2(padding.x, text_base_offset_y), text_col, is_open ? ImGuiDir_Down : ImGuiDir_Right, 1.0f);
@@ -5284,6 +5283,7 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
         // Unframed typed for tree nodes
         if (hovered || selected)
         {
+            const ImU32 bg_col = GetColorU32((held && hovered) ? ImGuiCol_HeaderActive : hovered ? ImGuiCol_HeaderHovered : ImGuiCol_Header);
             RenderFrame(frame_bb.Min, frame_bb.Max, bg_col, false);
             RenderNavHighlight(frame_bb, id, nav_highlight_flags);
         }
@@ -5346,12 +5346,6 @@ void ImGui::TreePop()
     PopID();
 }
 
-void ImGui::TreeAdvanceToLabelPos()
-{
-    ImGuiContext& g = *GImGui;
-    g.CurrentWindow->DC.CursorPos.x += GetTreeNodeToLabelSpacing();
-}
-
 // Horizontal distance preceding label when using TreeNode() or Bullet()
 float ImGui::GetTreeNodeToLabelSpacing()
 {
@@ -6361,7 +6355,7 @@ bool    ImGui::BeginTabBarEx(ImGuiTabBar* tab_bar, const ImRect& tab_bar_bb, ImG
     window->DC.CursorPos.x = tab_bar->BarRect.Min.x;
 
     // Draw separator
-    const ImU32 col = GetColorU32((flags & ImGuiTabBarFlags_IsFocused) ? ImGuiCol_TabActive : ImGuiCol_Tab);
+    const ImU32 col = GetColorU32((flags & ImGuiTabBarFlags_IsFocused) ? ImGuiCol_TabActive : ImGuiCol_TabUnfocusedActive);
     const float y = tab_bar->BarRect.Max.y - 1.0f;
     {
         const float separator_min_x = tab_bar->BarRect.Min.x - ImFloor(window->WindowPadding.x * 0.5f);