Merge branch 'master' into navigation

# Conflicts:
#	imgui.cpp
#	imgui.h

README.md

@@ -45,7 +45,7 @@ Binaries/Demo
 -------------
 
 You should be able to build the examples from sources (tested on Windows/Mac/Linux). If you don't, let me know! If you want to have a quick look at some Dear ImGui features, you can download Windows binaries of the demo app here:
-- [imgui-demo-binaries-20171013.zip](http://www.miracleworld.net/imgui/binaries/imgui-demo-binaries-20171013.zip) (Windows binaries, Dear ImGui 1.52 WIP built 2017/10/13, 5 executables)
+- [imgui-demo-binaries-20171226.zip](http://www.miracleworld.net/imgui/binaries/imgui-demo-binaries-20171226.zip) (Windows binaries, Dear ImGui 1.53 built 2017/12/26, 5 executables)
 
 Bindings
 --------
@@ -60,6 +60,7 @@ Languages:
 - ChaiScript: https://github.com/JuJuBoSc/imgui-chaiscript
 - D (DerelictImgui): https://github.com/Extrawurst/DerelictImgui
 - Go (go-imgui): https://github.com/Armored-Dragon/go-imgui
+- Haxe/hxcpp (linc_imgui): https://github.com/Aidan63/linc_imgui    
 - Lua: https://github.com/patrickriordan/imgui_lua_bindings
 - Odin: https://github.com/ThisDrunkDane/odin-dear_imgui
 - Pascal (imgui-pas): https://github.com/dpethes/imgui-pas

imgui.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.53
+// dear imgui, v1.54 WIP
 // (main code and documentation)
 
 // ** EXPERIMENTAL GAMEPAD/KEYBOARD NAVIGATION BRANCH
@@ -3721,7 +3721,7 @@ void ImGui::EndFrame()
     IM_ASSERT(g.CurrentWindowStack.Size == 1);    // Mismatched Begin()/End() calls
     if (g.CurrentWindow && !g.CurrentWindow->WriteAccessed)
         g.CurrentWindow->Active = false;
-    ImGui::End();
+    End();
 
     if (g.ActiveId == 0 && g.HoveredId == 0)
     {
@@ -4579,7 +4579,7 @@ void ImGui::BeginTooltip()
 void ImGui::EndTooltip()
 {
     IM_ASSERT(GetCurrentWindowRead()->Flags & ImGuiWindowFlags_Tooltip);   // Mismatched BeginTooltip()/EndTooltip() calls
-    ImGui::End();
+    End();
 }
 
 // Mark popup as open (toggle toward open state).
@@ -4751,7 +4751,7 @@ bool ImGui::BeginPopupModal(const char* name, bool* p_open, ImGuiWindowFlags ext
     }
 
     // Center modal windows by default
-    if ((window->SetWindowPosAllowFlags & g.SetNextWindowPosCond) == 0)
+    if (g.SetNextWindowPosCond == 0)
         SetNextWindowPos(g.IO.DisplaySize * 0.5f, ImGuiCond_Appearing, ImVec2(0.5f, 0.5f));
 
     ImGuiWindowFlags flags = extra_flags|ImGuiWindowFlags_Popup|ImGuiWindowFlags_Modal|ImGuiWindowFlags_NoCollapse|ImGuiWindowFlags_NoSavedSettings;
@@ -4903,7 +4903,7 @@ void ImGui::EndChild()
     IM_ASSERT(window->Flags & ImGuiWindowFlags_ChildWindow);   // Mismatched BeginChild()/EndChild() callss
     if (window->BeginCount > 1)
     {
-        ImGui::End();
+        End();
     }
     else
     {
@@ -4913,7 +4913,7 @@ void ImGui::EndChild()
             sz.x = ImMax(4.0f, sz.x);
         if (window->AutoFitChildAxises & (1 << ImGuiAxis_Y))
             sz.y = ImMax(4.0f, sz.y);
-        ImGui::End();
+        End();
 
         ImGuiWindow* parent_window = GetCurrentWindow();
         ImRect bb(parent_window->DC.CursorPos, parent_window->DC.CursorPos + sz);
@@ -7743,7 +7743,8 @@ bool ImGui::TreeNodeBehavior(ImGuiID id, ImGuiTreeNodeFlags flags, const char* l
     // - OpenOnArrow .................... single-click on arrow to open
     // - OpenOnDoubleClick|OpenOnArrow .. single-click on arrow or double-click anywhere to open
     ImGuiButtonFlags button_flags = ImGuiButtonFlags_NoKeyModifiers | ((flags & ImGuiTreeNodeFlags_AllowItemOverlap) ? ImGuiButtonFlags_AllowItemOverlap : 0);
-    button_flags |= ImGuiButtonFlags_PressedOnDragDropHold;
+    if (!(flags & ImGuiTreeNodeFlags_Leaf))
+        button_flags |= ImGuiButtonFlags_PressedOnDragDropHold;
     if (flags & ImGuiTreeNodeFlags_OpenOnDoubleClick)
         button_flags |= ImGuiButtonFlags_PressedOnDoubleClick | ((flags & ImGuiTreeNodeFlags_OpenOnArrow) ? ImGuiButtonFlags_PressedOnClickRelease : 0);
 
@@ -10337,14 +10338,15 @@ bool ImGui::BeginCombo(const char* label, const char* preview_value, ImGuiComboF
 
     // Peak into expected window size so we can position it
     if (ImGuiWindow* popup_window = FindWindowByName(name))
-    {
-        ImVec2 size_contents = CalcSizeContents(popup_window);
-        ImVec2 size_expected = CalcSizeAfterConstraint(popup_window, CalcSizeAutoFit(popup_window, size_contents));
-        if (flags & ImGuiComboFlags_PopupAlignLeft)
-            popup_window->AutoPosLastDirection = ImGuiDir_Left;
-        ImVec2 pos = FindBestWindowPosForPopup(frame_bb.GetBL(), size_expected, &popup_window->AutoPosLastDirection, frame_bb, ImGuiPopupPositionPolicy_ComboBox);
-        SetNextWindowPos(pos);
-    }
+        if (popup_window->WasActive)
+        {
+            ImVec2 size_contents = CalcSizeContents(popup_window);
+            ImVec2 size_expected = CalcSizeAfterConstraint(popup_window, CalcSizeAutoFit(popup_window, size_contents));
+            if (flags & ImGuiComboFlags_PopupAlignLeft)
+                popup_window->AutoPosLastDirection = ImGuiDir_Left;
+            ImVec2 pos = FindBestWindowPosForPopup(frame_bb.GetBL(), size_expected, &popup_window->AutoPosLastDirection, frame_bb, ImGuiPopupPositionPolicy_ComboBox);
+            SetNextWindowPos(pos);
+        }
 
     ImGuiWindowFlags window_flags = ImGuiWindowFlags_AlwaysAutoResize | ImGuiWindowFlags_Popup | ImGuiWindowFlags_NoTitleBar | ImGuiWindowFlags_NoResize | ImGuiWindowFlags_NoSavedSettings;
     if (!Begin(name, NULL, window_flags))
@@ -10755,7 +10757,7 @@ bool ImGui::BeginMenuBar()
     // We remove 1 worth of rounding to Max.x to that text in long menus don't tend to display over the lower-right rounded area, which looks particularly glitchy.
     ImRect bar_rect = window->MenuBarRect();
     ImRect clip_rect(ImFloor(bar_rect.Min.x + 0.5f), ImFloor(bar_rect.Min.y + window->WindowBorderSize + 0.5f), ImFloor(ImMax(bar_rect.Min.x, bar_rect.Max.x - window->WindowRounding) + 0.5f), ImFloor(bar_rect.Max.y + 0.5f));
-    clip_rect.ClipWith(window->Rect());
+    clip_rect.ClipWith(window->WindowRectClipped);
     PushClipRect(clip_rect.Min, clip_rect.Max, false);
 
     window->DC.CursorPos = ImVec2(bar_rect.Min.x + window->DC.MenuBarOffsetX, bar_rect.Min.y);// + g.Style.FramePadding.y);
@@ -12653,6 +12655,12 @@ void ImGui::EndDragDropTarget()
     IM_ASSERT(g.DragDropActive);
 }
 
+bool ImGui::IsDragDropActive()
+{
+    ImGuiContext& g = *GImGui;
+    return g.DragDropActive;
+}
+
 //-----------------------------------------------------------------------------
 // PLATFORM DEPENDENT HELPERS
 //-----------------------------------------------------------------------------
@@ -12905,6 +12913,7 @@ void ImGui::ShowMetricsWindow(bool* p_open)
             ImGui::Text("NavUsable: %d, NavActive: %d", g.IO.NavUsable, g.IO.NavActive);
             ImGui::Text("NavActivateId: 0x%08X, NavInputId: 0x%08X", g.NavActivateId, g.NavInputId);
             ImGui::Text("NavDisableHighlight: %d, NavDisableMouseHover: %d", g.NavDisableHighlight, g.NavDisableMouseHover);
+            ImGui::Text("DragDrop: %d, SourceId = 0x%08X, Payload \"%s\" (%d bytes)", g.DragDropActive, g.DragDropPayload.SourceId, g.DragDropPayload.DataType, g.DragDropPayload.DataSize);
             ImGui::TreePop();
         }
     }

imgui.h

@@ -1,4 +1,4 @@
-// dear imgui, v1.53
+// dear imgui, v1.54 WIP
 // (headers)
 
 // See imgui.cpp file for documentation.
@@ -16,7 +16,7 @@
 #include <stddef.h>         // ptrdiff_t, NULL
 #include <string.h>         // memset, memmove, memcpy, strlen, strchr, strcpy, strcmp
 
-#define IMGUI_VERSION       "1.53"
+#define IMGUI_VERSION       "1.54 WIP"
 #define IMGUI_HAS_NAV       // navigation branch
 
 // Define attributes of all API symbols declarations, e.g. for DLL under Windows.
@@ -436,6 +436,7 @@ namespace ImGui
     IMGUI_API bool          BeginDragDropTarget();                                                                  // call after submitting an item that may receive an item. If this returns true, you can call AcceptDragDropPayload() + EndDragDropTarget()
     IMGUI_API const ImGuiPayload* AcceptDragDropPayload(const char* type, ImGuiDragDropFlags flags = 0);            // accept contents of a given type. If ImGuiDragDropFlags_AcceptBeforeDelivery is set you can peek into the payload before the mouse button is released.
     IMGUI_API void          EndDragDropTarget();
+    IMGUI_API bool          IsDragDropActive();
 
     // Clipping
     IMGUI_API void          PushClipRect(const ImVec2& clip_rect_min, const ImVec2& clip_rect_max, bool intersect_with_current_clip_rect);

imgui_demo.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.53
+// dear imgui, v1.54 WIP
 // (demo code)
 
 // Message to the person tempted to delete this file when integrating ImGui into their code base:
@@ -2403,6 +2403,7 @@ static void ShowExampleAppFixedOverlay(bool* p_open)
             if (ImGui::MenuItem("Top-right", NULL, corner == 1)) corner = 1;
             if (ImGui::MenuItem("Bottom-left", NULL, corner == 2)) corner = 2;
             if (ImGui::MenuItem("Bottom-right", NULL, corner == 3)) corner = 3;
+            if (p_open && ImGui::MenuItem("Close")) *p_open = false; 
             ImGui::EndPopup();
         }
         ImGui::End();

imgui_draw.cpp

@@ -1,4 +1,4 @@
-// dear imgui, v1.53
+// dear imgui, v1.54 WIP
 // (drawing and font code)
 
 // Contains implementation for

imgui_internal.h

@@ -1,4 +1,4 @@
-// dear imgui, v1.53
+// dear imgui, v1.54 WIP
 // (internals)
 
 // You may use this file to debug, understand or extend ImGui features but we don't provide any guarantee of forward compatibility!